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Chemistry articles from across Nature Portfolio
Chemistry is a branch of science that involves the study of the composition, structure and properties of matter. Often known as the central science, it is a creative discipline chiefly concerned with atomic and molecular structure and its change, for instance through chemical reactions.
Stress monitoring with wearable technology and AI
Physicochemical-sensing electronic skins — combined with artificial intelligence — could be used to develop personalized stress management systems.
- H. Ceren Ates
Steering the asymmetric folding of a nanographene
The enantioselective synthesis of an inherently chiral molecular nanographene is demonstrated by precisely controlling the sequential generation of chiral elements in its structure. The final stereocontrolled graphitization step allows for the separate synthesis of both enantiomers, thus paving the way towards chirality controlled all-carbon nanographenes.
Reducing carbon dioxide efficiently to reuse and recycle it
Electrochemical reduction of carbon dioxide holds promise for converting CO 2 into valuable products but is hampered by stability issues and wasted carbon. A proton-exchange membrane that uses lead as a catalyst demonstrates the feasibility of durable and efficient CO 2 reduction.
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Mechanically interlocked [ c 2]daisy chain backbone enabling advanced shape-memory polymeric materials
Mechanically interlocked structures in polymer backbones can give interesting functionality, but can be challenging to prepare and control. Here, the authors report the development of polymers with a daisy chain unit in the backbone that are capable of shape memory behaviour.
- Shang-Wu Zhou
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Spectrofluorimetric determination of butylated hydroxytoluene and butylated hydroxyanisole in their combined formulation: application to butylated hydroxyanisole residual analysis in milk and butter
- Sara Abdel Basset Galal
- Eman Saad Elzanfaly
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Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination
Environmentally adaptive hydrogels have great potential as soft robotics but achieving self-regulated reversal shape deformation in homogenous hydrogels under a constant stimulus is challenging. Here, the authors report responsive hydrogels functionalized with two photoswitchable spiropyrans that exhibit self-regulated transient deformation reversal when subjected to constant illumination.
- Xuehan Yang
Creation of a point-of-care therapeutics sensor using protein engineering, electrochemical sensing and electronic integration
Low-cost point-of-care sensors are vital for precision medicine. Here, the authors have repurposed a glucometer for breast cancer therapeutic detection capable of sensing tamoxifen in human blood, utilizing blood glucose to power and amplify the therapeutic signals
- Chiagoziem Ngwadom
- Caroline M. Ajo-Franklin
Visible light-mediated intermolecular crossed [2+2] cycloadditions using a MOF-supported copper triplet photosensitizer
[Cu(phen)(binap)] + features a relatively high photocatalytic activity, but its low photostability hinders its use in organic chemistry. Now immobilization of this motif on a metal–organic framework matrix enhances its stability and excited-state lifetime, enabling the promotion of [2+2] cycloadditions of styrenes with a variety of olefins, including electron-deficient alkenes.
Enhancement of the mechanical properties in ultra-low weight SWCNT sandwiched PDMS composites using a novel stacked architecture
- Pavithra Ananthasubramanian
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News and Comment
Accelerating discovery in organic redox flow batteries
We highlight the challenges and opportunities in organic redox flow battery research, underscoring the need for collaborative research efforts. The synergy between computation and experimentation holds the potential to expedite progress in this field and can have far-reaching impacts beyond energy storage applications.
- Alán Aspuru-Guzik
Best practices for oxygen electrocatalysis
Oxygen electrocatalysis is key for energy conversion and storage technologies such as fuel cells and water electrolysers. However, the measurement of the performance of electrocatalysts is not standardized. This Comment addresses emerging pitfalls in performance evaluation and discusses best practices for oxygen electrocatalysis.
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Triple win: solar farms in deserts can boost power, incomes and ecosystems
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Home > Chemistry > CHEMISTRYDISS
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Chemistry department: dissertations, theses, and student research.
Halide Exchange and Transport in Halide Perovskite Lattices , Temban Acha Billy
Synthesis and Study of High-Spin Stable Organic Radicals for Electrical Conductors and Mannosamine Nitroxide for MRI Contrast Agents , Shuyang Zhang
Designing Experiments: The Impact of Peer Review Structure on Organic Chemistry Students' Experimental Designs , Katie Patterson
Study of halide gradient formation via solution-solid halide exchange in crystalline CH 3 NH 3 PbBr 3 thin films , Behnaz Akbari
Oxygen Binding Thermodynamics of Human Hemoglobin in the Red Blood Cell , Kyle K. Hill
Developing Techniques for the Identification of Non-Canonical RNA Pairing and Analysis of LC-MS Datasets , Christopher Jurich
Surface Functionalization of Elastomers for Tunable Crystal Growth and Smart Adhesives , John Kapitan
Issue of False Amphetamine Field Test Positives Caused By Sugar. Use of Baeyer Test as a Secondary Test Solution. , Reed A. Knutson, Jennah Duncan, Kara Peightal, and Samuel Thomas
Harnessing Surface Chemistry and Instabilities in Silicone Elastomers to Synthesize Adaptive Systems with Mechanically Tunable Surface Properties and Functionality , Ali Jamal Mazaltarim
How Oxygen-Binding Affects Structural Evolution of Even-Sized Gold Anion Clusters. (Size Range 20 to 34) , David Brunken-Deibert
Analysis of Hydroxychloroquine Interaction with Serum Proteins by High Performance Affinity Chromatography , Kyungah Suh, Sadia Sharmeen, and David S. Hage
The Application and Development of Metabolomics Methodologies for the Profiling of Food and Cellular Toxicity , Jade Woods
Evaluation of the Overall Binding of Acetohexamide and Tolbutamide with Methyl Glyoxal-Modified HSA by High-Performance Affinity Chromatography , Ashley G. Woolfork and David S. Hage
C(sp2)-C(sp3) Cross-Coupling of Aryl Halides and Active C(sp3)-H Bonds via Dual Catalysis: Organic Photocatalysis/Nickel Redox Catalysis , Nicholas Armada
Phosphonate-Directed Catalytic Asymmetric Hydroboration: Synthesis of Functionalized Chiral Secondary and Tertiary Boronic Esters and Mechanistic Insights , Suman Chakrabarty
COMPUTATIONAL STUDIES OF THERMAL PROPERTIES AND DESALINATION PERFORMANCE OF LOW-DIMENSIONAL MATERIALS , Yang Hong
QUANTUM CHEMICAL CALCULATIONS APPLIED TO SOMO-HOMO CONVERSION AND VIBRATIONALLY AVERAGED NMR SHIELDING PARAMETERS , Erik Johnson
Design and Synthesis of Stable Aminyl and Nitroxide Radical Precursors , Joshua Bryan Lovell
Development of Nanomaterial Supports for the Study of Affinity-Based Analytes Using Ultra-Thin Layer Chromatography , Allegra Pekarek
ANALYSIS OF DRUG-PROTEIN INTERACTIONS DURING DIABETES BY HIGH-PERFORMANCE AFFINITY CHROMATOGRAPHY , Pingyang Tao
Electropolymerization and Characterization of Thin Film Dielectrics , Christopher White II
Synthesis, Characterization, and Catalytic Activity of Copper Palladium Oxide Solid Solutions. , Gregory L. Christensen
GLOBAL MINIMUM SEARCH AND CARBON MONOXIDE BINDING STUDIES OF NOVEL GOLD NANOCLUSTERS , Navneet S. Khetrapal
Mass Spectrometry and Nuclear Magnetic Resonance in the Chemometric Analysis of Cellular Metabolism , Eli Riekeberg
Ultrafast Affinity Extraction and High-Performance Affinity Chromatography Applications for Measuring Free Drug Fractions: Interactions of Sulfonylurea Drugs with Normal and Glycated Human Serum Albumin , Bao Yang
DEVELOPMENT OF ENTRAPMENT COLUMNS FOR THE STUDY OF AFFINITY BASED ANALYSIS OF DRUG-PROTEIN INTERACTIONS , Shiden T. Azaria
Chemical Vapor Deposition of Two-Dimensional Materials and Heterostructures , Alex J. Boson
Bioinformatic and Biophysical Analyses of Proteins , Jonathan Catazaro
Developing Functionalized Peroxide Precursors for the Synthesis of Cyclic and Spirocyclic Ethers , Anna J. Diepenbrock
Decarboxylative Elimination for the Systhesis of Olefins Via Photoredox/Cobalt Dual Catalysis , Renjie Gui
Enantioselective γ- and δ -Borylation of Unsaturated Carbonyl Derivatives: Synthesis, Mechanistic Insights, and Applications. , Gia L. Hoang
Entrapment of proteins in high-performance affinity columns for chromatographic studies of drug-protein interactions , Saumen Poddar, Elliott Rodriguez, Shiden Azaria, and David S. Hage
Genetic Code Expansion in Biochemical Investigations and Biomedical Applications , Nanxi Wang
Applying the Diffusion of Innovation Theory to Characterize STEM Faculty Attending Professional Development Programs , Dihua Xue
Who is attending pedagogical workshops? Applying the Innovation Diffusion to Characterize Faculty Attendees , Victoria Dihua Xue, Trisha Vickrey, and Marilyne Stains
Genetically Encoded Fluorescent Protein Biosensor for Nitric Oxide , Wenjia Zhai
STUDIES IN DIRECTED CATALYTIC ASYMMETRIC HYDROBORATION OF 1,2-DISUBSTITUTED UNSATURATED AMIDE , Shuyang Zhang
Synthesis and Applications of Cyclobutenes , Benjamin Enns
Binding of Oxygen to Human Hemoglobin Within the Erythrocyte Using ICAM Spectrophotometry , Kyle K. Hill
Design and Synthesis of Novel Octacarboxy Porphyrinic Metal-Organic Frameworks , Jacob A. Johnson
Development of a Direct Activity Probe for Rho-Associated Protein Kinase , Maia Kelly
Thermolysis of Hypervalent Iodine Complexes: Synthesis of Fluorinated Radiotracers for Positron Emission Tomography and Synthesis of Quaternary α-Alkyl α-Aryl Amino Acids , Jayson J. Kempinger
Synthesis and Applications of Lanthanide Sulfides and Oxides , Christopher Marin
SELECTIVE IODINATION USING DIARYLIODONIUM SALTS , William H. Miller IV
MOLECULAR MECHANISM FOR THE BIOSYNTHESIS AND REGULATION OF SECONDARY METABOLITES IN LYSOBACTER , Simon Tesfamichael Tombosa
STUDIES IN ASYMMETRIC CATALYSIS: SUPRAMOLECULAR CATALYSIS AND BORANE-ASSISTED HYDROGENATION , Kazuya Toyama
Molecular Mechanism for the Biosynthesis of Antifungal HSAF and Antibacterial WAP-8294A2 , Haotong Chen
Toward the Probing of DHQS Activity by Protein Engineering through the Introduction of Unnatural Amino Acids and the Selection of tRNA/tRNA Synthetase Pairs , Shaina E. Ives
Toward an Expanded Role for Collision-Induced Dissociation in Glycoproteomic Analysis , Venkata Kolli
New Methods for Synthesis of Organic Peroxides and Application of Peroxide Electrophiles to Synthesis of Functionalized Ethers , Shiva Kumar Kyasa
Chromatographic Analysis of Drug-Protein Interactions During Diabetes and Characterization of Human Serum Albumin Through Multidimensional Mass Spectrometry , Ryan E. Matsuda
THREE-DIMENSIONAL SCAFFOLDS OF GRAPHENE, CARBON NANOTUBES AND TRANSITION-METAL OXIDES FOR APPLICATIONS IN ELECTRONICS, SENSORS AND ENERGY STORAGE , Gilbert N. Mbah
TOWARD THE MEASUREMENT OF BIODISTRIBUTION OF 18 F-LABELED INDUSTRIAL CHEMICALS WITH POSITRON EMISSION TOMOGRAPHY (PET) , Katelyenn S. McCauley
Investigations into the Molecular Mechanisms of Bacterial Pathogen-Host Interactions: Construction of a Dual Plasmid System for Incorporation of Unnatural Amino Acids into Pseudomonas syringae pv. tomato DC3000 , Scotty D. Raber
Applications of High Performance Affinity Chromatography with High Capacity Stationary Phases Made by Entrapment , John A. Vargas Badilla
Uses of Diaryliodonium Salts and Methods for their Synthesis , Jordan M. Veness
The intersection of nuclear magnetic resonance and quantum chemistry , Yali Wang
Chemometric and Bioinformatic Analyses of Cellular Biochemistry , Bradley Worley
Analysis of Free Solute Fractions and Solute-Protein Interactions Using Ultrafast Affinity Extraction and Affinity Microcolumns , Xiwei Zheng
The 8-Silyloxyquinoline Scaffold as a Versatile Platform for the Sensitive Detection of Aqueous Fluoride , Xinqi Zhou
Nanostructured Cerium Oxide Based Catalysts: Synthesis, Physical Properties, and Catalytic Performance , Yunyun Zhou
Hydrolytically Stable Analogues of Sugar Phosphates and a Miniaturized in Situ Enzymatic Screen , Xiang Fei
Development and Application of Combined Quantum Mechanical and Molecular Mechanical Methods , Rui Lai
Syntheses of Aminyl Diradicals and Nitroxide Tetra- and Octaradicals , Arnon Olankitwanit
Analysis of Drug Interactions with Lipoproteins by High Performance Affinity Chromatography , Matthew R. Sobansky
Studies in Asymmetric Synthesis: Supramolecular Catalysis, C-H Activation, and D-Cycloserine Synthesis , Nathan C. Thacker
Application of Nuclear Magnetic Resonance Based Metabolomics to Study the Central Metabolism of Staphylococci , Bo Zhang
IMPLEMENTATION AND APPLICATION OF THE MMFF94 FORCE FIELD , Hongbo Zhu
The Electrochemical Analysis of Bovine Bone Derived Supercapacitors, Organic Peroxide Explosives, and Conducting Polymer Nanojunctions , Paul Goodman
The Development and Applications of NMR Metabolomics Analysis of Bacterial Metabolomes , Steven M. Halouska
Utilizing NMR Spectroscopy and Molecular Docking as Tools for the Structural Determination and Functional Annotation of Proteins , Jaime Stark
A. Catalysis of CO-PROX by Water-Soluble Rhodium Fluorinated Porphyrins B. Studies toward Fluorination of Electron Rich Aromatics by Nucleophilic Fluoride , Shri Harsha Uppaluri
Regulation of Secondary Metabolism in Lysobacter enzymogenes : Studies of Intercellular and Intracellular Signaling , Stephen J. Wright
DIRECTED CATALYTIC ASYMMETRIC HYDROBORATION OF 1,1-DISUBSTITUTED ALKENES , Mohammad Odeh Bani Khaled
I. Synthesis of β-Sitosterol and Phytosterol Esters; II. New Methodology for Singlet Oxygen Generation from 1,1-Dihydroperoxides , Jiliang Hang
Experimental and Theoretical Studies in Solid-state Nuclear Magnetic Resonance , Monica N. Kinde
Experimental and Theoretical Studies in Nuclear Magnetic Resonance , John D. Persons
RHODIUM-CATALYZED HYDROBORATION OF 1,1-DISUBSTITUTED ALKENES , Scott A. Pettibone
INVESTIGATIONS OF INTER- AND INTRAMOLECULAR C-O BOND FORMING REACTIONS OF PEROXIDE ELECTROPHILES , Benjamin W. Puffer
The Use of Rhenium (VII) Oxide as a Catalyst for the Substution of Hemiacetals , Michael W. Richardson
Characterization of Novel Macrocyclic Polyether Modified Pseudostationary Phases for use in Micellar Electrokinetic Chromatography and Development of a Chemiluminescence Presumptive Assay for Peroxide-based Explosives , Raychelle Burks
Preparation and Characterization of Biomimetic Hydroxyapatite-Resorbable Polymer Composites for Hard Tissue Repair , Kristopher R. Hiebner
High Yield Synthesis of Positron Emission Tomography Ligands for Metabotropic Glutamate Receptor Imaging , Saraanne E. Hitchcock
Optimization and Implementation of Entrapment: A Novel Immobilization Technique for High-performance Affinity Chromatography , Abby J. Jackson
Fabrication and Catalytic Property of Cerium Oxide Nanomaterials , Keren Jiang
Affinity Chromatography in Environmental Analysis and Drug-Protein Interaction Studies , Efthimia Papastavros
Development and Optimization of Organic Based Monoliths for Use in Affinity Chromatography , Erika L. Pfaunmiller
I. An Improved Procedure for Alkene Ozonolysis. II. Exploring a New Structural Paradigm for Peroxide Antimalarials. , Charles Edward Schiaffo
QUANTUM MECHANICAL AND MOLECULAR MECHANICAL STUDY OF SOLVENT EFFECTS , Dejun Si
Resorbable Polymer-Hydroxyapatite Composites for Bone Trauma Treatment: Synthesis and Properties , Troy E. Wiegand
PURIFICATION OF LYSINE DECARBOXYLASE: A MODEL SYSTEM FOR PLP ENZYME INHIBITOR DEVELOPMENT AND STUDY , Leah C. Zohner
Characterization of Glycation Sites on Human Serum Albumin using Mass Spectrometry , Omar S. Barnaby
HIGH TEMPERATURE RARE EARTH COMPOUNDS: SYNTHESIS, CHARACTERIZATION AND APPLICATIONS IN DEVICE FABRICATION , Joseph R. Brewer
Classification, Synthesis and Characterization of Pyridyl Porphyrin Frameworks , Lucas D. DeVries
Ultrasonic Activation of Triacetone Triperoxide , LaTravia R. Dobson
Characteristics and Stability of Oxide Films on Plutonium Surfaces , Harry Guillermo García Flores
Controlling Reductive Elimination From Novel I(III) Salts Using a SECURE Method , Joseph W. Graskemper
I. A NEW SYNTHETIC APPROACH TO THE SYNTHESIS OF N-(PHOSPHONOACETYL)-L-ORNITHINE, II. THE INFLUENCE OF PYRIDINE ON THE OZONOLYSIS OF ALKENES , Bradley M. Johnson
Chromatographic Studies of Drug-Protein Binding in Diabetes , Kathryn (Krina) S. Joseph
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Digital Commons @ USF > College of Arts and Sciences > Chemistry > Theses and Dissertations
Chemistry Theses and Dissertations
Theses/dissertations from 2023 2023.
aPKCs role in Neuroblastoma cell signaling cascades and Implications of aPKCs inhibitors as potential therapeutics , Sloan Breedy
Protein Folding Kinetics Analysis Using Fluorescence Spectroscopy , Dhanya Dhananjayan
Affordances and Limitations of Molecular Representations in General and Organic Chemistry , Ayesha Farheen
Institutional and Individual Approaches to Change in Undergraduate STEM Education: Two Framework Analyses , Stephanie B. Feola
Applications in Opioid Analysis with FAIMS Through Control of Vapor Phase Solvent Modifiers , Nathan Grimes
Synthesis, Characterization, and Separation of Loaded Liposomes for Drug Delivery , Sandra Khalife
Supramolecular Architectures Generated by Self-assembly of Guanosine and Isoguanosine Derivatives , Mengjia Liu
Syntheses, Photophysics, & Application of Porphyrinic Metal-Organic Frameworks , Zachary L. Magnuson
Chemical Analysis of Metabolites from Mangrove Endophytic Fungus , Sefat E Munjerin
Synthesis of Small Molecule Modulators of Non-Traditional Drug Targets , Jamie Nunziata
Synthetic Studies of Potential New Ketogenic Molecules , Mohammad Nazmus Sakib
Coupling Chemical and Genomic Data of Marine Sediment-Associated Bacteria for Metabolite Profiling , Stephanie P. Suarez
Enhanced Methods in Forensic Mass Spectrometry for Targeted and Untargeted Drug Analysis , Dina M. Swanson
Investigation of Challenging Transformations in Gold Catalysis , Qi Tang
Diazirines and Oxaziridines as Nitrogen Transfer Reagents in Drug Discovery , Khalilia C. Tillett
Developing New Strategy toward Ruthenium and Gold Redox Catalysis , Chenhuan Wang
Gold-Catalyzed Diyne-ene Cyclization: Synthesis of Hetero Polyaromatic Hydrocarbons and 1,2-Dihydropyridines , Jingwen Wei
Development of Antiviral Peptidomimetics , Songyi Xue
Theses/Dissertations from 2022 2022
Investigating a Potential STING Modulator , Jaret J. Crews
Exploring the Structure and Activity of Metallo-Tetracyclines , Shahedul Islam
Metabolomic Analysis, Identification and Antimicrobial Assay of Two Mangrove Endophytes , Stephen Thompson
Bioactivity of Suberitenones A and B , Jared G. Waters
Developing Efficient Transition Metal Catalyzed C-C & C-X Bond Construction , Chiyu Wei
Measurement in Chemistry, Mathematics, and Physics Education: Student Explanations of Organic Chemistry Reaction Mechanisms and Instructional Practices in Introductory Courses , Brandon J. Yik
Study on New Reactivity of Vinyl Gold and Its Sequential Transformations , Teng Yuan
Study on New Strategy toward Gold(I/III) Redox Catalysis , Shuyao Zhang
Theses/Dissertations from 2021 2021
Design, Synthesis and Testing of Bioactive Peptidomimetics , Sami Abdulkadir
Synthesis of Small Molecules for the Treatment of Infectious Diseases , Elena Bray
Social Constructivism in Chemistry Peer Leaders and Organic Chemistry Students , Aaron M. Clark
Synthesizing Laccol Based Polymers/Copolymers and Polyurethanes; Characterization and Their Applications , Imalka Marasinghe Arachchilage
The Photophysical Studies of Transition Metal Polyimines Encapsulated in Metal Organic Frameworks (MOF’s) , Jacob M. Mayers
Light Harvesting in Photoactive Guest-Based Metal-Organic Frameworks , Christopher R. McKeithan
Using Quantitative Methods to Investigate Student Attitudes Toward Chemistry: Women of Color Deserve the Spotlight , Guizella A. Rocabado Delgadillo
Simulations of H2 Sorption in Metal-Organic Frameworks , Shanelle Suepaul
Parallel Computation of Feynman Path Integrals and Many-Body Polarization with Application to Metal-Organic Materials , Brant H. Tudor
The Development of Bioactive Peptidomimetics Based on γ-AApeptides , Minghui Wang
Investigation of Immobilized Enzymes in Confined Environment of Mesoporous Host Matrices , Xiaoliang Wang
Novel Synthetic Ketogenic Compounds , Michael Scott Williams
Theses/Dissertations from 2020 2020
Biosynthetic Gene Clusters, Microbiomes, and Secondary Metabolites in Cold Water Marine Organisms , Nicole Elizabeth Avalon
Differential Mobility Spectrometry-Mass spectrometry (DMS-MS) for Forensic and Nuclear-Forensic applications , Ifeoluwa Ayodeji
Conversion from Metal Oxide to MOF Thin Films as a Platform of Chemical Sensing , Meng Chen
Asking Why : Analyzing Students' Explanations of Organic Chemistry Reaction Mechanisms using Lexical Analysis and Predictive Logistic Regression Models , Amber J. Dood
Development of Next-Generation, Fast, Accurate, Transferable, and Polarizable Force-fields for Heterogenous Material Simulations , Adam E. Hogan
Breakthroughs in Obtaining QM/MM Free Energies , Phillip S. Hudson
New Synthetic Methodology Using Base-Assisted Diazonium Salts Activation and Gold Redox Catalysis , Abiola Azeez Jimoh
Development and Application of Computational Models for Biochemical Systems , Fiona L. Kearns
Analyzing the Retention of Knowledge Among General Chemistry Students , James T. Kingsepp
A Chemical Investigation of Three Antarctic Tunicates of the Genus Synoicum , Sofia Kokkaliari
Construction of Giant 2D and 3D Metallo-Supramolecules Based on Pyrylium Salts Chemistry , Yiming Li
Assessing Many-Body van der Waals Contributions in Model Sorption Environments , Matthew K. Mostrom
Advancing Equity Amongst General Chemistry Students with Variable Preparations in Mathematics , Vanessa R. Ralph
Sustainable Non-Noble Metal based Catalysts for High Performance Oxygen Electrocatalysis , Swetha Ramani
The Role of aPKCs and aPKC Inhibitors in Cell Proliferation and Invasion in Breast and Ovarian Cancer , Tracess B. Smalley
Development of Ultrasonic-based Ambient Desorption Ionization Mass Spectrometry , Linxia Song
Covalent Organic Frameworks as an Organic Scaffold for Heterogeneous Catalysis including C-H Activation , Harsh Vardhan
Optimization of a Digital Ion Trap to Perform Isotope Ratio Analysis of Xenon for Planetary Studies , Timothy Vazquez
Multifunctional Metal-Organic Frameworks (MOFs) For Applications in Sustainability , Gaurav Verma
Design, Synthesis of Axial Chiral Triazole , Jing Wang
The Development of AApeptides , Lulu Wei
Chemical Investigation of Floridian Mangrove Endophytes and Antarctic Marine Organisms , Bingjie Yang
Theses/Dissertations from 2019 2019
An Insight into the Biological Functions, the Molecular Mechanism and the Nature of Interactions of a Set of Biologically Important Proteins. , Adam A. Aboalroub
Functional Porous Materials: Applications for Environmental Sustainability , Briana Amaris Aguila
Biomimetic Light Harvesting in Metalloporphyrins Encapsulated/Incorporated within Metal Organic Frameworks (MOFs). , Abdulaziz A. Alanazi
Design and Synthesis of Novel Agents for the Treatment of Tropical Diseases , Linda Corrinne Barbeto
Effect of Atypical protein kinase C inhibitor (DNDA) on Cell Proliferation and Migration of Lung Cancer Cells , Raja Reddy Bommareddy
The Activity and Structure of Cu2+ -Biomolecules in Disease and Disease Treatment , Darrell Cole Cerrato
Simulation and Software Development to Understand Interactions of Guest Molecules inPorous Materials , Douglas M. Franz
Construction of G-quadruplexes via Self-assembly: Enhanced Stability and Unique Properties , Ying He
The Role of Atypical Protein Kinase C in Colorectal Cancer Cells Carcinogenesis , S M Anisul Islam
Chemical Tools and Treatments for Neurological Disorders and Infectious Diseases , Andrea Lemus
Antarctic Deep Sea Coral and Tropical Fungal Endophyte: Novel Chemistry for Drug Discovery , Anne-Claire D. Limon
Constituent Partitioning Consensus Docking Models and Application in Drug Discovery , Rainer Metcalf
An Investigation into the Heterogeneity of Insect Arylalkylamine N -Acyltransferases , Brian G. O'Flynn
Evaluating the Evidence Base for Evidence-Based Instructional Practices in Chemistry through Meta-Analysis , Md Tawabur Rahman
Role of Oncogenic Protein Kinase C-iota in Melanoma Progression; A Study Based on Atypical Protein Kinase-C Inhibitors , Wishrawana Sarathi Bandara Ratnayake
Formulation to Application: Thermomechanical Characterization of Flexible Polyimides and The Improvement of Their Properties Via Chain Interaction , Alejandro Rivera Nicholls
The Chemical Ecology and Drug Discovery Potential of the Antarctic Red Alga Plocamium cartilagineum and the Antarctic Sponge Dendrilla membranosa , Andrew Jason Shilling
Synthesis, Discovery and Delivery of Therapeutic Natural Products and Analogs , Zachary P. Shultz
Development of α-AA peptides as Peptidomimetics for Antimicrobial Therapeutics and The Discovery of Nanostructures , Sylvia E. Singh
Self-Assembly of 2D and 3D Metallo-Supramolecules with Increasing Complexity , Bo Song
The Potential of Marine Microbes, Flora and Fauna in Drug Discovery , Santana Alexa Lavonia Thomas
Design, Synthesis, and Self-Assembly of Supramolecular Fractals Based on Terpyridine with Different Transition Metal Ions , Lei Wang
Theses/Dissertations from 2018 2018
Fatty Acid Amides and Their Biosynthetic Enzymes Found in Insect Model Systems , Ryan L. Anderson
Interrogation of Protein Function with Peptidomimetics , Olapeju Bolarinwa
Characterization of Nylon-12 in a Novel Additive Manufacturing Technology, and the Rheological and Spectroscopic Analysis of PEG-Starch Matrix Interactions , Garrett Michael Craft
Synthesis of Novel Agents for the treatment of Infectious and Neurodegenerative diseases , Benjamin Joe Eduful
Survey research in postsecondary chemistry education: Measurements of faculty members’ instructional practice and students’ affect , Rebecca E. Gibbons
Design, Synthesis, Application of Biodegradable Polymers , Mussie Gide
Conformational Fluctuations of Biomolecules Studied Using Molecular Dynamics and Enhanced Sampling , Geoffrey M. Gray
Analysis and New Applications of Metal Organic Frameworks (MOF): Thermal Conductivity of a Perovskite-type MOF and Incorporation of a Lewis Pair into a MOF. , Wilarachchige D C B Gunatilleke
Chemical Investigation of Bioactive Marine Extracts , Selam Hagos
Optimizing Peptide Fractionation to Maximize Content in Cancer Proteomics , Victoria Izumi
Germania-based Sol-gel Coatings and Core-shell Particles in Chromatographic Separations , Chengliang Jiang
Synthesis, Modification, Characterization and Processing of Molded and Electrospun Thermoplastic Polymer Composites and Nanocomposites , Tamalia Julien
Studies Aimed at the Synthesis of Anti-Infective Agents , Ankush Kanwar
From Florida to Antarctica: Dereplication Strategies and Chemical Investigations of Marine Organisms , Matthew A. Knestrick
Sorbent Enrichment Performance of Aromatic Compounds from Diluted Liquid Solution , Le Meng
Development of Bioactive Peptidomimetics , Fengyu She
Azamacrocyclic-based Frameworks: Syntheses and Characterizations , Chavis Andrew Stackhouse
Structure-based Design, Synthesis and Applications of a New Class of Peptidomimetics: 'Y -AA Peptides and Their Derivatives , Ma Su
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ISC Chemistry Paper 2023 Answer Key: Download CISCE Class 12 Solution PDF
Isc chemistry previous year question paper: get here the solved isc chemistry 2023 question paper to prepare for the upcoming cisce class 12 chemistry exam 2024. .
ISC Chemistry Paper 2023 Answer Key: This is the time when all the Science stream ISC students are feeling stressed about the upcoming Chemistry exam. Don't worry, help is here! The ISC exams are happening now, and we know you're looking for all the resources you can find to ace your exams.
ISC Class 12 Chemistry Revised Course Structure
Isc chemistry paper 2023 solved.
SECTION A — 14 MARKS
(A) Fill in the blanks by choosing the appropriate word(s) from those given in the brackets: [4 × 1]
[stable, low, aldehyde, unstable, 6, 4, ethane, Clemmensen’s, 2, 3, carboxylic acid, high, propane, Rosenmund’s]
(i) The primary alcohols are easily oxidised first into a ldehyde and then into carboxylic acid .
(ii) The intermediate activated complex in a chemical reaction is highly unstable and then into high .
(iii) The coordination number and oxidation state of the complex K 4 [Fe(CN) 6 ]are 6 and 2 respectively.
(iv) Propanone on reaction with zinc-amalgam in presence of conc. HCl gives Propane and the reaction is known as Clemmensen’s reduction.
(i) Aldehyde, carboxylic acid
(ii) Unstable, high
(iv) Propane, Clemmensen’s
(B) Select and write the correct alternative from the choices given below: [4 × 1]
(i) The reaction of a primary amine with chloroform and ethanolic KOH is called:
(a) Carbylamine reaction
(b) Kolbe’s reaction
(c) Reimer-Tiemann reaction
(d) Wurtz-Fittig reaction
(ii) Which one of the following statements is TRUE for the Galvanic cell?
(a) Electrons flow from copper electrode to zinc electrode.
(b) Current flows from zinc electrode to copper electrode.
(c) Cations move towards copper electrode.
(d) Cations move towards zinc electrode.
(iii) Which one of the following compounds is diamagnetic and colourless?
(a) K 2 Cr 2 O 7
(b) ZnSO 4
(c) KMnO 4
(d) Cr 2 (SO 4 ) 3
(iv) For a first order reaction, the half-life period ( t ½ ) is:
(a) proportional to the initial concentration.
(b) inversely proportional to the initial concentration.
(c) proportional to the square root of the initial concentration.
(d) independent of the initial concentration.
(i) Option (a) is
(ii) Option(d) is
(iii) Option(b) is
(iv) Option(d) is
(C) Match the following: [4 × 1]
(i) Phenol (a) Hexane + heptane
(ii) EDTA (b) Globular protein
(iii) Ideal solution (c) Azo dye
(iv) Insulin (d) Hexadentate ligand
(D) (i) Assertion: If a solution contains both H + and Na – ions, the H + ions are reduced first at cathode.
Reason: Cations with higher E° value are reduced first at cathode.
(a) Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation for Assertion.
(c) Assertion is true but Reason is false.
(d) Assertion is false but Reason is true.
(ii) Assertion: Addition of bromine water to 1-butene gives two optical isomers.
Reason: The product formed contains two asymmetric carbon atoms.
SECTION B — 20 MARKS
Question 2 [2]
Calculate the mass of ascorbic acid (molecular mass = 176 g/mol) that should be dissolved in 155g of acetic acid to cause a depression of freezing point by 1.15K. Assume that ascorbic acid does not dissociate or associate in the solution. (K f for acetic acid = 3.9 K kg/mol)
Question 3 [2]
Give a reason for the following:
(i) Cu +2 salts are paramagnetic while Cu + salts are diamagnetic.
(ii) Mn +2 compounds are more stable than Fe +2
Question 4 [2]
Give chemical equations for each of the following:
(i) Ethylchloride is treated with aqueous KOH
(ii) Chlorobenzeneis treated with ammonia at 573K and high
Question 5 [2]
State one reason for each of the following:
(i) Alkylamineis soluble in water whereas arylamine is insoluble in
(ii) Methylamineis a stronger base than methyl
Question 6 [2]
Calculate the emf of the following cell at 298K.
Cu/Cu2+(0.025M) // Ag+(0.005M) /Ag
Given E°Cu 2+ /Cu = 0.34V, E°Ag + /Ag=0.80V,
1 Faraday = 96500 Cmol –1
Question 7 [2]
Complete and balance the following chemical equations:
(i) KMnO4 + H2SO4 + KI →____+_____+______+________
(ii) K2Cr2O7 + H2SO4 + H2S →____+_____+______+________
Question 8 [2]
(i) How will the following be obtained? (Give chemical equation)
(a) Ethanol from Grignard’s
(b) Diethyl ether from sodium
(i) Anorganic compound [A] C2H6O, on heating with H2SO4 at 413K gives a neutral compound [B] C4H10O. Compound [B] on treatment with PCl 5 gives a product, which on subsequent treatment with KCN yields compound [C] C3H5N. Compound [C] on hydrolysis gives an acid [D] C3H6O2. Identify the compounds [A], [B], [C] and [D].
Question 9 [2]
The osmotic pressure of blood at 37°C is 8.21 atm. How much glucose in grams should be used per litre of aqueous solution for an intravenous injection so that it is isotonic with blood? (Molecular wt of glucose = 180g/mol)
Question 10 [2]
An aromatic carboxylic acid [A] which readily sublimes on heating, produces compound [B] on treatment with PCl 5 . Compound [B], when reduced in the presence of Pd catalyst over BaSO 4 poisoned by sulphur in xylene solution gives compound [C]. When compound [C] is condensed in the presence of alcoholic KCN, it gives compound [D]. (Molecular formula of compound [D] is C14H12O2)
Identify the compounds [A], [B], [C] and [D].
Question 11 [2]
State a reason for each of the following:
(i) La(OH)3 is more basic than Lu(OH)3.
SECTION C — 21 MARKS
Question 12 [3]
20% of a first order reaction is completed in five minutes. How much time will the 60% reaction take to complete? Calculate the half-life period (t½) for the above reaction.
Question 13 [3]
Write the balanced chemical equations for the following name reactions:
(i) Sandmeyer’s reaction
(ii) Wurtz reaction
(iii) Finkelstein reaction
Question 14 [3]
(i) Givean example each of reducing sugar and non-reducing
(ii) Whatis denaturation of proteins ?
(iii) Givean example each of water soluble vitamin and fat soluble
Question 15 [3]
When 2g of benzoic acid is dissolved in 25g of benzene, it shows a depression in freezing point equal to 1.62K. Molal depression constant (Kf) of benzene is 4.9 K kg mol –1 and molecular weight of benzoic acid = 122g/mol. What will be the percentage association of the benzoic acid?
(Benzoic acid forms dimer when dissolved in benzene.)
Question 16 [3]
Account for the following:
(I) Phenol is a stronger acid than aliphatic
(ii) Ethanol gives iodoform reaction whereas methanol does not give iodoform
(iii) Ethers should not be distilled to
Question 17 [3]
(i) Identify the compounds [A], [B] and [C] in the following reactions:
(a) CH COOH →NH3→[ A] → B r 2 + K O H →{B] →CHCl3+NaOH( a l c ) →[C]
(b) CH3Br → K C N →[ A] → L iA l H 4→[B] → H N O 2→[C]
(i) How will the following be converted? (Give chemical equation)
(a) Ethylbromide to ethyl
(b) Anilineto benzene diazonium
(c) Benzenediazonium chloride to
Question 18 [3]
SECTION D — 15 MARKS
Question 19 [5]
(i) Write the chemical equations to illustrate the following name reactions:
(a) Cannizzaro’s reaction
(b) HVZ reaction
(c) Aldol condensation
(ii) How will the following be converted? (Give chemical equation)
(a) Acetaldehyde to acetone
(b) Formaldehyde to urotropine
Question 20 [5]
(i) Name the type of isomerism exhibited by the following pairs of
(a) [Co(NH3)5(ONO)]Cl2 and [Co(NH3)5(NO2)]Cl2
(b) [Cr(H2O)5CI]Cl2.H2O and [Cr(H2O)4Cl2]Cl.2H2O
(c) [Pt(NH3)4Cl2]Br2and [Pt(NH3)4Br2]Cl2
(ii) Write the IUPAC names of the following complexes:
(a) [Co(NH3)4(H2O)2]Cl3
(b) K 2 [Ni(CN) 4 ]
Question 21 [5]
(i) The specific conductance of 5 × 10 –4 M formic acid is 5.25 × 10 –5 ohm –1 cm –1 . Calculate its molar conductivity and degree of dissociation.
Given l° (H +) = 349.5 ohm –1 cm –1 mol –1 and l° (HCOO –) = 50.5 ohm –1 cm –1 mol –1
(ii) Calculate the time taken to deposit 27g of copper at cathode when a current of 2 amp. is passed through the solution of CuSO4. ( Atomic weight of Cu= 63.5 g mol –1 )
(i) The resistance of a conductivity cell with 0.1 M KCL solution is 200 ohm. When the same cell is filled with02M NaCl solution, the resistance is 1100 ohm. If the conductivity of 0.1M KCl solution is 0.0129 ohm –1 cm –1 , calculate the cell constant and molar conductivity of 0.02M NaCl solution.
(ii) The emf (E°cell) of the following reaction is 0.89V:3Sn 4+ + 2Cr → 3Sn 2+ + 2Cr 3+
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Green Chemistry
Environmental impact of different scenarios for the pyrolysis of contaminated mixed plastic waste †.
* Corresponding authors
a Department of Chemical Engineering, Faculty of Sciences, University of Granada, 18071 Granada, Spain E-mail: [email protected] , [email protected]
b Department of Agrifood Chain Economics, Institute of Agricultural and Fisheries Research and Training (IFAPA), Centre ‘Camino de Purchil’, 18080 Granada, Spain
Every day, large amounts of plastic are disposed of all over the world. Most of it is not recycled and ends up polluting the environment. Therefore, waste collection and management must be improved to reduce the environmental impact caused by plastic waste. Pyrolysis has been explored as an alternative to treat contaminated mixed plastic waste and obtain valuable materials, such as oil and char. These materials can effectively substitute fuel and activated carbon, respectively. However, the pyrolysis process also has a significant environmental impact, mainly due to gas emissions. It is important to quantify this environmental impact and compare it with alternative treatment methods to identify the best management strategy for contaminated mixed plastic waste. This study applies the Life-Cycle Assessment methodology to evaluate the environmental impact and compare it with the conventional practice of landfilling. Three different pyrolysis scenarios are considered: one in which the char is used as fuel and therefore combusted, and two in which the char is activated by carbon dioxide and potassium hydroxide, respectively, to be used as an adsorbent. Our results show that pyrolysis is environmentally superior to landfilling for the treatment of contaminated mixed plastic waste. This is mainly due to the production of oil, which substitutes commercial diesel, the production of which has a high environmental impact. Pyrolysis followed by char combustion has the lowest environmental impact of all pyrolysis scenarios considered.
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Environmental impact of different scenarios for the pyrolysis of contaminated mixed plastic waste
G. Garcia-Garcia, M. Á. Martín-Lara, M. Calero and G. Blázquez, Green Chem. , 2024, Advance Article , DOI: 10.1039/D3GC04396G
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Title: an interactive agent foundation model.
Abstract: The development of artificial intelligence systems is transitioning from creating static, task-specific models to dynamic, agent-based systems capable of performing well in a wide range of applications. We propose an Interactive Agent Foundation Model that uses a novel multi-task agent training paradigm for training AI agents across a wide range of domains, datasets, and tasks. Our training paradigm unifies diverse pre-training strategies, including visual masked auto-encoders, language modeling, and next-action prediction, enabling a versatile and adaptable AI framework. We demonstrate the performance of our framework across three separate domains -- Robotics, Gaming AI, and Healthcare. Our model demonstrates its ability to generate meaningful and contextually relevant outputs in each area. The strength of our approach lies in its generality, leveraging a variety of data sources such as robotics sequences, gameplay data, large-scale video datasets, and textual information for effective multimodal and multi-task learning. Our approach provides a promising avenue for developing generalist, action-taking, multimodal systems.
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