Open Access. Powered by Scholars. Published by Universities.®

Chemistry Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 7471 - 7500 of 33195

Full-Text Articles in Chemistry

Band-Gap Tuning In Acceptor-Donor-Acceptor Boron Difluoride Formazanates, Francis L. Buguis, Michael Anghel, Joe B. Gilroy, Jasveer S. Dhindsa Jan 2021

Band-Gap Tuning In Acceptor-Donor-Acceptor Boron Difluoride Formazanates, Francis L. Buguis, Michael Anghel, Joe B. Gilroy, Jasveer S. Dhindsa

Chemistry Publications

π-Conjugated molecules with acceptor-donor-acceptor (A-D-A) electronic structures are an important class of materials due to their tunable optoelectronic properties and applications in, for example, organic light-emitting diodes, nonlinear optical devices, and organic solar cells. The frontier molecular orbital energies, and thus band gaps, of these materials can be tuned by varying the donor and acceptor traits and π-electron counts of the structural components. Herein, we report the synthesis and characterization of a series of A-D-A compounds consisting of BF2 formazanates as electron acceptors bridged by a variety of π-conjugated donors. The results, which are supported by DFT calculations, demonstrate …

Go to article

Metal Bioaccessibility In Synthetic Bodyfluids–A Way To Considerpositive And Negative Alloying Effects In Hazard Assessments, Yolanda S. Hedberg, Xuying Wang, James J. Noël, Inger Odnevall Wallinder Jan 2021

Metal Bioaccessibility In Synthetic Bodyfluids–A Way To Considerpositive And Negative Alloying Effects In Hazard Assessments, Yolanda S. Hedberg, Xuying Wang, James J. Noël, Inger Odnevall Wallinder

Chemistry Publications

Hazard classification of metal alloys is today generally based on their bulk content, an approach that seldom reflects the extent of metal release for a given environment. Such information can instead be achieved via bioelution testing under simulated physiological conditions. The use of bioelution data instead of bulk contents would hence refine the current hazard classification of alloys and enable grouping. Bioelution data have been generated for nickel (Ni) and cobalt (Co) released from several stainless steel grades, one low-alloyed steel, and Ni and Co metals in synthetic sweat, saliva and gastric fluid, for exposure periods from 2 to 168 …

Go to article

New Weldable 316l Stainless Flux-Cored Wires With Reduced Cr(Vi) Fume Emissions Part 2 – Round Robin Creating Fume Emission Data Sheets, Yolanda Hedberg Jan 2021

New Weldable 316l Stainless Flux-Cored Wires With Reduced Cr(Vi) Fume Emissions Part 2 – Round Robin Creating Fume Emission Data Sheets, Yolanda Hedberg

Chemistry Publications

Welding fumes have been found to be carcinogenic and stainless steel welders may be at higher risk due to increased formation of hexavalent chromium (Cr(VI)). The slag-shielded methods, identified to generate most airborne particles and Cr(VI), would potentially be most harmful. With ever-stricter limits set to protect workers, measures to minimize human exposure become crucial. Austenitic stainless steel flux-cored wires of 316L type have been developed with the aim to reduce the toxicity of the welding fume without compromised usability. Collected particles were compared with fumes formed using solid, metal-cored and standard flux-cored wires. In Part 1, the new wires …

Go to article

New Weldable 316l Stainless Flux-Cored Wires With Reduced Cr(Vi) Fume Emissions Part 1 – Health Aspects Of Particle Composition And Release Of Metals, Yolanda Hedberg Jan 2021

New Weldable 316l Stainless Flux-Cored Wires With Reduced Cr(Vi) Fume Emissions Part 1 – Health Aspects Of Particle Composition And Release Of Metals, Yolanda Hedberg

Chemistry Publications

Welding fumes have been found to be carcinogenic and stainless steel welders may be at higher risk due to increased formation of hexavalent chromium (Cr(VI)). The slag-shielded methods, identified to generate most airborne particles and Cr(VI), would potentially be most harmful. With ever-stricter limits set to protect workers, measures to minimize human exposure become crucial. Austenitic stainless steel flux-cored wires of 316L type have been developed with the aim to reduce the toxicity of the welding fume without compromised usability. Collected particles were compared with fumes formed using solid, metal-cored and standard flux-cored wires. The size, morphology and composition were …

Go to article

Energetic Topography Of Hydroxyl Rotation In Aesculetin, George Du Laney, Mark Muyskens Jan 2021

Energetic Topography Of Hydroxyl Rotation In Aesculetin, George Du Laney, Mark Muyskens

Summer Research

To find barriers to hydroxyl rotation in neutral aesculetin and in the anion, potential energy surfaces needed to be generated for both using Gaussian 16 software via WebMO to do Coordinate Scans. These involved optimizing geometry and calculating energy at every 4.5° interval in a 360° rotation of each hydroxyl. In the gas phase, we used the B3LYP/6-31G(d) method. In the aqueous phase, we added SMD/UAKS solvation model

Go to article

Synthesis, Characterization, And Catalytic And Biological Activities Of A Mixed-Ligand Cobalt(Ii) Bipyridyl/Diphenylazodioxide Complex, Kylin A. Emhoff Jan 2021

Synthesis, Characterization, And Catalytic And Biological Activities Of A Mixed-Ligand Cobalt(Ii) Bipyridyl/Diphenylazodioxide Complex, Kylin A. Emhoff

ETD Archive

Transition metal complexes have immense importance in the pharmaceutical industry. These types of complexes can be useful catalysts in the synthesis of medicinal compounds and can act as anticancer drugs. In these pharmaceutical applications, 1st-row transition metal-containing complexes offer certain advantages compared to their 2nd and 3rd-row transition metal counterparts. Our motivation was to investigate pharmaceutical applications of transition metal complexes containing both a 1st-row transition metal and unusual ligands to expand the knowledge of a class of complexes that could potentially be beneficial in the pharmaceutical industry. A class of rare ligands that piqued our interest was that of …

Go to article

Synthesis And Functionality Study Of Novel Biomimetic N-Glycan Polymers, Ka Keung Chan Jan 2021

Synthesis And Functionality Study Of Novel Biomimetic N-Glycan Polymers, Ka Keung Chan

ETD Archive

Cell surface carbohydrates, existing as glycoproteins, glycolipids, and proteoglycans, often serve as receptors to relay critical interactions and trigger crucial signaling events in many biological processes. Glycan recognition is deeply involved in immune surveillance, response and can provide abundant opportunities to discover the molecular mechanism and potential therapeutic or diagnostic approaches for various diseases. Many useful functionalities can be achieved by developing synthetic glycans to mimic natural carbohydrates. Over the recent decade, glycopolymers, polymers with pendant carbohydrates, have continued to prove usefulness in various applications across different scientific disciplines. For example, glycopolymers can be used as biomimetic glycoligands to study …

Go to article

The Photophysical Properties Of Grevillone (6- Hydroxycoumarin) And Methylgrevillone (6-Hydroxy-4- Methyl-Coumarin), Leah H. Knoor, Hyemin Seo, Liam Hoogewerf, George Du Laney, Isaac Jonker, Mark Muyskens Jan 2021

The Photophysical Properties Of Grevillone (6- Hydroxycoumarin) And Methylgrevillone (6-Hydroxy-4- Methyl-Coumarin), Leah H. Knoor, Hyemin Seo, Liam Hoogewerf, George Du Laney, Isaac Jonker, Mark Muyskens

Summer Research

Grevillone (L) and methylgrevillone (R) are two of many natural compounds called coumarins. Coumarins are useful as antioxidants, antivirals, and more.

Go to article

Thermal Atomic Layer Deposition Of Titanium Nitride Films: Synthesis And Characterization Of Novel Titanium Precursors, Anuththara Chalani Upeksha Abesinghe Arachchige Jan 2021

Thermal Atomic Layer Deposition Of Titanium Nitride Films: Synthesis And Characterization Of Novel Titanium Precursors, Anuththara Chalani Upeksha Abesinghe Arachchige

Wayne State University Dissertations

Due to the continuous miniaturization of microelectronic devices, robust deposition techniques are required which can provide continuous and conformal thin films even in high aspect ratio structures. Atomic Layer Deposition (ALD) is an excellent choice of deposition technique as it is capable of providing perfect film coverage. Because of its self-limited growth mechanism, ALD can afford sub-nanometer thickness control. Precursors used in ALD should be volatile, thermally stable at the deposition temperature, and highly reactive towards the co-regent. Traditionally, ALD has been used to grow metal oxide films. However, the microelectronics industry now demands ALD for metals and metal nitrides. …

Go to article

Analysis Of Lubricants At Trace Levels Using Infrared Spectroscopy, Tanmai Bandarupalli Jan 2021

Analysis Of Lubricants At Trace Levels Using Infrared Spectroscopy, Tanmai Bandarupalli

Honors Undergraduate Theses

Analysis of trace evidence involved in sexual assault investigations holds considerable potential as a newer avenue of identification when bulk, larger evidence is not found or unreliable. Trace analysis of forensic materials involves common findings such as strands of hair, residues left on clothing, shards of paint or glass, etc. In recent research focused on the analysis of trace materials found as evidence in a sexual assault, there has been promise in condom and bottled lubricant classification based on their chemical profiles that can provide an associative link in an investigation. Few studies have considered the examination of lubricant evidence …

Go to article

Elucidating The Interfacial Interactions Between Biomacromolecules And Functionalized Pamam-Based Materials For Biomedical Applications, Briana L. Simms Jan 2021

Elucidating The Interfacial Interactions Between Biomacromolecules And Functionalized Pamam-Based Materials For Biomedical Applications, Briana L. Simms

Electronic Theses and Dissertations

Polyamidoamine (PAMAM) is a dendrimer structure with a polypeptide backbone architecture. It has been utilized in a wide variety of applications but has found significant utility in biomedical applications. PAMAM has been studied extensively due to its globular structure that is similar to proteins found in the body. The branched architecture and overall size provide a favorable environment for host-guest interactions and allows for the loading of small molecules for therapeutic delivery. Although PAMAM has many benefits for use in the area of therapeutic delivery, a primary area of concern for this molecular architecture is the terminal amines that serve …

Go to article

A Spectroscopic And Quantum Chemical Investigation Into The Noncovalent Interactions And Charge Accommodation Of Biomolecules And Their Building Blocks In Various Environments, Ashley Elizabeth Williams Jan 2021

A Spectroscopic And Quantum Chemical Investigation Into The Noncovalent Interactions And Charge Accommodation Of Biomolecules And Their Building Blocks In Various Environments, Ashley Elizabeth Williams

Electronic Theses and Dissertations

As optical measurements have grown increasingly more precise with the rage of the technological revolution, the computer’s ability has matched in computing speed to produce accurate quantum chemical predictions of systems ranging from the atomic to multi-molecular levels. Application of spectroscopy in the investigation of the structure and function of biomolecules and their building blocks has a rich literature background, with applications among cancer research, charge transfer and energy storage, and drug design and delivery. The focus of this dissertation is thus a quantum chemical and/or spectroscopic investigation of a series of biomolecules which include the vibrational band positions of …

Go to article

Carbon Dioxide And Particulate Matter Concentration On Hampton Roads Air Quality, Gregory Hubbard Jan 2021

Carbon Dioxide And Particulate Matter Concentration On Hampton Roads Air Quality, Gregory Hubbard

OUR Journal: ODU Undergraduate Research Journal

Hampton Roads has been a maritime crossroads for the last 400 years. Industrialization has impacted the coastal region for the last 250 years. The expansion of the Port of Virginia in 2019 has created dense traffic in the region resulting in impacts to air quality. Two waste products that affect humans are particulate matter and carbon dioxide. Both respective emissions can cause adverse effects on humans, such as asthma, some lung cancers, and other respiratory distress. Scientists and health practitioners are studying the effects of particulate matter on human health. Hampton Roads, in particular, because of its unique location on …

Go to article

Toward Understanding Large Deflection Bending Of 3d Printed Ninjaflex®, Lucas K. Gallup, Mohamed Trabia, Brendan O’Toole, Youssef Fahmy Jan 2021

Toward Understanding Large Deflection Bending Of 3d Printed Ninjaflex®, Lucas K. Gallup, Mohamed Trabia, Brendan O’Toole, Youssef Fahmy

College of Engineering Faculty Research

NinjaFlex® is a thermoplastic polyurethane filament that is primarily used for 3D printing. Aside from its low cost and availability, this material is highly flexible, durable, and has a low coefficient of friction. While NinjaFlex® was introduced approximately two decades ago, a comprehensive understanding of the filament’s mechanical behavior, especially in the context of the effect of 3D printing, is still lacking. The goal of this research is to gain a better understanding of the behavior of 3D printed NinjaFlex® specimens when subjected to bending loads that cause large deflection. A series of experiments were conducted to test the bending …

Go to article

Polymer-Based And Functionalized 3d Microelectrode Array (Mea) Biosensors, Nilab Azim Jan 2021

Polymer-Based And Functionalized 3d Microelectrode Array (Mea) Biosensors, Nilab Azim

Electronic Theses and Dissertations, 2020-2023

Microphysiological systems are three-dimensional (3D) in vitro systems that recapitulate crucial biological aspects of cell heterogeneity and native tissue architecture by mimicking complex structures that are impossible in two-dimensional (2D) cell cultures. Microelectrode arrays (MEAs) are biosensors used to spatially and temporally monitor the activity of microphysiological systems by transducing cellular signals into electronic signals to provide quantitative data on the in vitro system. Conventional MEAs are typically planar in nature, however, 3D MEAs offer several advantages such as better simulation of an in vivo cellular environment and improved signal-to-noise ratio and cell-electrode coupling. MEA fabrication utilizing traditional cleanroom methods …

Go to article

Highly Reproducible Electrochemical Sensors Towards Wearable Applications And Pharmaceutical Analysis, Mohammad Rostampour Kakroudi Jan 2021

Highly Reproducible Electrochemical Sensors Towards Wearable Applications And Pharmaceutical Analysis, Mohammad Rostampour Kakroudi

Electronic Theses and Dissertations, 2020-2023

Ion-selective electrodes (ISEs) are widely used to monitor ions in various applications from environmental to clinical settings and pharmaceutical analysis. ISEs are a type of potentiometric sensor that provides a versatile, cost-effective, and efficient platform towards wearable sensing applications. Among the two different platforms of ISEs (solid-contact and liquid-contact), solid-contact ISEs are superior to ISEs with internal electrolytes (liquid-contact) since they are easy to be miniaturized, can be used in any environment and their portability is facilitated. Unfortunately, mass production and commercialization of such devices is often constrained by the requirement of sensor calibration. Thus, approaches for sensor manufacturing towards …

Go to article

Activity Of Saccharomyces Cerevisiae By Single Entity Electrochemistry, John Lutkenhaus Jan 2021

Activity Of Saccharomyces Cerevisiae By Single Entity Electrochemistry, John Lutkenhaus

Graduate Research Posters

According to the Centers of Disease Control and Prevention, antibiotics decrease in effectiveness as bacteria gain resistance for previously treatable illnesses. Currently, antibiotic susceptibility is typically carried out via the Kirby-Bauer method. Even with automation, this process requires two incubation periods so a less time-consuming technique is desirable. Single entity electrochemistry (SEE) detects changes in current when collisions of individual particles at an ultramicroelectrode (UME) are linked with an electrochemical event. Our group has obtained step-like and spike-like responses of Saccharomyces cerevisiae at the UME surface as a result of adsorption and desorption, respectively. This response is due to the …

Go to article

Collisions Or Adsorption: An Electrochemical Random Walk Decides, Junaid U. Ahmed, Julio C. Alvarez Jan 2021

Collisions Or Adsorption: An Electrochemical Random Walk Decides, Junaid U. Ahmed, Julio C. Alvarez

Graduate Research Posters

Current-time recordings of toluene microdroplets emulsified in water and containing 20 mM Ferrocene (Fc), show multiple electrochemical peaks from oxidation of Fc on disk microelectrodes (5μm-diameter). The average droplet diameter (~0.7 μm) determined from area integration of the peaks was close to Dynamic Light Scattering measurements (~1 μm). Random walk simulations were performed deriving equations to simulate droplet electrolysis using the diffusion and thermal velocity expressions established by Einstein. The simulations show that multiple droplet-electrode collisions, lasting ~0.11 μs each, occur before a droplet wanders away. Updating the Fc-concentration at every collision shows that a droplet only oxidizes ~0.58 % …

Go to article

Transcriptional Repressor Protein Based Macrolide Biosensor Development With Improved Sensitivity, Jayani A. Christopher Jan 2021

Transcriptional Repressor Protein Based Macrolide Biosensor Development With Improved Sensitivity, Jayani A. Christopher

Graduate Research Posters

Macrolide antibiotics are in high demand for clinical applications. Macrolides are biosynthesized via giant assembly line polyketide synthases (PKS) which are arranged in a modular fashion. Combinatorial biosynthetic methods have been used to produce diversified macrolides by reprograming these modules and modifying tailoring enzymes required for post synthetic modifications. However it is challenging due to the size and complexity of PKSs. To overcome this challenge, new enzymes for macrolide diversification could be obtained by directed evolution where a large number of enzyme variants need to be screened. Therefore it is important to develop high throughput screening methods to identify the …

Go to article

Extending Single Entity Electrochemistry Towards The Detection Of Single Bacteria In Micro Volumes, Ashley Tubbs, Junaid Ahmed, Julio C. Alvarez Jan 2021

Extending Single Entity Electrochemistry Towards The Detection Of Single Bacteria In Micro Volumes, Ashley Tubbs, Junaid Ahmed, Julio C. Alvarez

Graduate Research Posters

Single entity electrochemistry (SEE) is an emerging electroanalytical technique with the ability to push the limit of detection of electrochemical sensors to the single particle level. It measures the change in current over time, making SEE rapid, simple, and cost-effective. The type of current response observed in the scan can provide information about the physiochemical processes underlying the signal. While SEE was originally developed to detect single molecules and nanoparticles, it has been widely applied to micron-sized particles, including emulsion droplets, bacteria, viruses, and mammalian cells. Some recent advances in this technique have focused on the detection of microscopic quantities …

Go to article

Using Augmented Reality As A Tool For Distance Learning Of Vsepr Theory, Isabelle Lopez Jan 2021

Using Augmented Reality As A Tool For Distance Learning Of Vsepr Theory, Isabelle Lopez

Scripps Senior Theses

Distance learning poses challenges in most academic settings, especially at the undergraduate laboratory level. Improving this mode of learning diminishes the impact of current events on young scientists’ development of foundational laboratory concepts. Our work explores the use of augmented reality (AR) in a laboratory setting. We developed a completely virtual valence shell electron pair repulsion (VSEPR) theory lab activity consistent with the goals of Keck Science Department’s Introduction to Chemistry course’s in-person VSEPR lab activity. We were able to maintain a hands-on learning experience for students while using a tool many students already own: an iPhone as an alternative …

Go to article

Characterization Of Microbial Populations In Landfill Leachate, Umut M. Bicim, Hanna Fulford, Lori A. Hoagland, Alejandro R. Sanchez, Amisha D. Shah, Inez Hua Jan 2021

Characterization Of Microbial Populations In Landfill Leachate, Umut M. Bicim, Hanna Fulford, Lori A. Hoagland, Alejandro R. Sanchez, Amisha D. Shah, Inez Hua

Discovery Undergraduate Interdisciplinary Research Internship

In the United States, municipal solid waste (MSW) landfills remain a potential mining source of recoverable materials, including but not limited to critical, precious, and rare earth metals found in electronic waste. This is possible due to collectible leachate that filters through MSW landfills, carrying metals, nutrients of value, and microbes—some of which may hold key metal bioleaching properties—within. The purpose of this study is to begin analyzing leachate from MSW landfills in the American Midwest to understand the composition of microbial communities within these landfills. Landfill leachate samples sourced in northern Indiana, representing the landfill process during unique times …

Go to article

Review On Carbon Dioxide Utilization For Cycloaddition Of Epoxides By Ionic Liquid-Modified Hybrid Catalysts: Effect Of Influential Parameters And Mechanisms Insight, Jimmy Nelson Appaturi, Rajabathar. Jothi Ramalingam, Muthu Kumaran Gnanamani, Govindasami Periyasami, Prabhakarn Arunachalam, Rohana Adnan, Farook Adam, Mohammed D. Wasmiah, Hamad A. Al‐Lohedan Jan 2021

Review On Carbon Dioxide Utilization For Cycloaddition Of Epoxides By Ionic Liquid-Modified Hybrid Catalysts: Effect Of Influential Parameters And Mechanisms Insight, Jimmy Nelson Appaturi, Rajabathar. Jothi Ramalingam, Muthu Kumaran Gnanamani, Govindasami Periyasami, Prabhakarn Arunachalam, Rohana Adnan, Farook Adam, Mohammed D. Wasmiah, Hamad A. Al‐Lohedan

Center for Applied Energy Research Faculty and Staff Publications

The storage, utilization, and control of the greenhouse (CO2) gas is a topic of interest for researchers in academia and society. The present review article is dedicating to cover the overall role of ionic liquid-modified hybrid materials in cycloaddition reactions. Special emphasis is on the synthesis of various cyclic carbonate using ionic liquid-based modified catalysts. Catalytic activity studies have discussed with respect to process conditions and their effects on conversion and product selectivity for the reaction of cycloaddition of CO2 with styrene oxide. The reaction temperature and the partial pressure of CO2 have found to play …

Go to article

Analysis Of The Role Of Sgs1p In Repair Of Double-Strand Dna Breaks In Saccharomyces Cerevisiae, Beth Wasserman Jan 2021

Analysis Of The Role Of Sgs1p In Repair Of Double-Strand Dna Breaks In Saccharomyces Cerevisiae, Beth Wasserman

Senior Honors Theses and Projects

Mis-repair of DNA double-stranded breaks (DSB) can result in genomic rearrangements and cancer. Sgs1p is a helicase that unwinds DNA for DSB repair. To better understand its role in break repair, I analyzed the frequency of various types of DSB repairs in yeast cells with the mutation sgs1-FD. Given this mutation disrupts an interaction between Sgs1p and a critical protein, Rad51p, I hypothesized mutant cells would have more error-prone repair than high fidelity canonical BIR repair. Genome sequence and chromosome size were examined in sgs1-FD yeast cells that underwent DSB repair. No difference was found in the frequency of …

Go to article

How Does Atg 10 Regulate The Autophagic Process? An Investigation Into The Atg12-5 Conjugation Pathway, Ayanda Brydie Jan 2021

How Does Atg 10 Regulate The Autophagic Process? An Investigation Into The Atg12-5 Conjugation Pathway, Ayanda Brydie

Senior Honors Theses and Projects

Autophagy is a highly conserved eukaryotic cellular recycling process in which the degradation of proteins and cytoplasmic organelles occurs to recycle broken down products throughout the cell. This process plays a critical role in cell survival and maintenance. Once initiated by either nutrient deficiency (bulk autophagy) or recognition of damaged organelles (selective autophagy) this process is mediated by autophagy-related proteins (Atg proteins). The Atg proteins function to form a double-membrane vesicle, the autophagosome, to target part of the cytoplasm and deliver it to the vesicle for breakdown. In bulk autophagy, the presence of these proteins at the phagophore assembly site …

Go to article

Purification And Activity Analysis Of A Highly Active Recombinant Catalase From Psychrophilic Bacterium Psychrobacter Cryohaloentis, Andrew Stewart Jan 2021

Purification And Activity Analysis Of A Highly Active Recombinant Catalase From Psychrophilic Bacterium Psychrobacter Cryohaloentis, Andrew Stewart

Honors Program Theses

To date, the genus Psychrobacter includes 37 recognized bacterial species isolated from different sources ranging from Siberian permafrost (P. cryohalolentis) to seal feces (P. lutiphocae). Due to its diverse ecological niches, several species belonging to the genus have different enzymatic activities with potential applications in bioremediation and the food industry. In this study, a bioprospecting approach was used to perform a in depth analysis of a Psychrobacter-like bacterial strain isolated from goose feces (designated as Psychrobacter unknown). The phylogenetic analysis of 16S rRNA gene and homologous sequence studies suggest that the strain may represent a novel species of the Psychrobacter …

Go to article

Synthesis Of A Series Of Ag(I)-Nhc Complexes For Future Antibacterial Studies, Alyssa Malto Jan 2021

Synthesis Of A Series Of Ag(I)-Nhc Complexes For Future Antibacterial Studies, Alyssa Malto

Honors Program Theses

For thousands of years, silver (Ag) has been widely used for medicinal purposes due to its broad-spectrum antimicrobial properties. While medicinal silver usage declined with the advent of antibiotics, there has been a renewed interest in therapeutic silver coordination compounds to combat the spread of antibiotic resistance. N-heterocyclic carbenes (NHCs) are promising ligands for silver metallodrugs due to their wide structural variety that allows for tunability of the complex’s overall steric and electronic properties and previously established bioactivity against various pathogens and cancer cell lines. There is potential for efficacy against biofilms, a type of microbial growth pattern that is …

Go to article

Convergent Synthesis Of Anaephene B, Megan Johnson Jan 2021

Convergent Synthesis Of Anaephene B, Megan Johnson

Honors Program Theses

Many organisms are capable of producing organic compounds as secondary metabolites; these natural products can be quite pharmaceutically and medicinally relevant.1 Typically, the more unique an organism, the more unique its secondary metabolites. Cyanobacteria, an abundant microalgal organism, is capable of producing a myriad of novel natural products.2 The unique photosynthetic and autotrophic properties of cyanobacteria allow for the production of many secondary metabolites, including lipopeptides, amino acids, fatty acids, macrolides, amides, and others.2,3 Staphylococcus aureus is one the most common bacterial infections in the world.4 S. aureus produces a number of metabolites that inhibit host immune responses.4 As a …

Go to article

World Oceans: A Reference Handbook, Rob Tench Jan 2021

World Oceans: A Reference Handbook, Rob Tench

Libraries Faculty & Staff Publications

Book review of Newton, David, World Oceans: A Reference Handbook, ABC-CLIO. (Contemporary World Issues), Feb. 2021, ISBN 9781440875434.

Go to article

Jazz Colors: Pigment Identification In The Gouaches Used By Henri Matisse, Ana Martins, Anne Catherine Prud’Hom, Maroussia Duranton, Abed Haddad, Celine Daher, Anne Genachte-Le Bail, Tiffany Tang Jan 2021

Jazz Colors: Pigment Identification In The Gouaches Used By Henri Matisse, Ana Martins, Anne Catherine Prud’Hom, Maroussia Duranton, Abed Haddad, Celine Daher, Anne Genachte-Le Bail, Tiffany Tang

Publications and Research

Jazz, the illustrated book by Henri Matisse, is a testament to the vitality of the artist in the last decade of his career. The book consists of twenty illustrations reproduced in 370 copies using a stencil-based printing technique and the same Linel gouaches the artist had used for the original maquettes. This study reports on the comprehensive analysis carried out to identify the pigments in the gouaches used in Jazz by transmitted and reflectance infrared, Raman, SERS, and X-ray fluorescence spectroscopies, and describes the lightfastness of these gouaches as evaluated by microfaedometry. This study also highlights the necessity of …

Go to article

First Prev Next Last