Review
Chemistry, Multidisciplinary
Natalie G. K. Wong, Caroline E. H. Dessent
Summary: This mini review provides an overview of recent advanced laser spectroscopic studies on organic sunscreens, focusing on their molecular-level processes and the effects of pH, metal cations, and solvation on their structures and non-radiative decay pathways.
FRONTIERS IN CHEMISTRY
(2022)
Article
Polymer Science
Jinkun Liu, Octavio Martinez Perez, Dominic Lavergne, Loorthuraja Rasu, Elizabeth Murphy, Andy Galvez-Rodriguez, Steven H. Bergens
Summary: This study presents the first direct electropolymerization of a dicyanobenzene-carbazole dye functionalized with an imidazole group to prepare redox- and photoactive porous organic polymer films. The structure and activities of the films were investigated for various applications, such as electrooxidations, photosynthetic olefin isomerizations, and tunable solid-state photoluminescence behavior. The results show the potential of these photoredox-POPs as efficient photocatalysts and their possible applications in sensing.
Article
Chemistry, Physical
Lavinia A. Trifoi, Nicholas P. Dogantzis, Gregory K. Hodgson, Pedro D. Ortiz, Sumaiya A. Soha, Costin N. Antonescu, Roberto J. Botelho, R. Stephen Wylie, Stefania Impellizzeri
Summary: We synthesized a fluorogenic methylated dihydrofluorescein derivative that can be activated and fluoresce under visible-light illumination. This study provides a simple optical method to simultaneously activate and excite fluorescence using a single wavelength, and the fluorescence can be further enhanced through metal-enhanced fluorescence.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Engineering, Chemical
Owen Setiawan, Zelalem Gudeta Abdi, Martin Weber, Wei-Song Hung, Tai-Shung Chung
Summary: This study investigates the potential application of the green solvent sulfolane in fabricating high-performance nanofiltration membranes as an alternative to toxic solvents. It is found that sulfolane is a poor solvent for the sPPSU polymer, resulting in a lower critical polymer concentration for producing macrovoid-free membrane structures. Additionally, the addition of a low molecular weight HPEI crosslinker enhances the mechanical rigidity of the membranes, enabling practical applications in wastewater treatment for dye/salt separation.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Nawader Alqadhi, Mohamed H. Abdellah, Sarvarkhodzha Nematulloev, Omar F. Mohammed, Mahmoud A. Abdulhamid, Gyorgy Szekely
Summary: Polymer engineering can improve the properties and performance of membranes. In this study, two customized PEEKs were synthesized and green membrane preparation methods were used. The effects of polymer structure, green solvent, and crosslinking on membrane performance were investigated, as well as the molecular interaction between organic solvents and PEEKs. The membranes showed high permeance and long-term stability in acetone, making them suitable for active pharmaceutical ingredient purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Inorganic & Nuclear
Hui Zhao, Fang-Fang Shen, Ji-Fu Sun, Zhong-Zheng Gao
Summary: The interaction between (E)-4-(4-(1-methyl-pyridinium)styryl)-1-methyl-pyridinium chloride (SMP) and cucurbit [8]uril (CB[8]) was characterized using various experimental techniques. The results showed the formation of a stable inclusion complex SMP@CB[8] with a host-guest binding ratio of 1:2, where the styryl group of SMP was located within the cavity of CB[8]. Isothermal titration calorimetry experiments revealed that the complexation between SMP and CB[8] was driven by both enthalpy and entropy, facilitated by ion dipole interactions. Additionally, the presence of CB[8] promoted the [2 + 2] photodimerization of the styryl units in the supramolecular complexes when exposed to visible light.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Simona Vaitkiene, Neringa Kuliesiene, Sandra Sakalauskaite, Laura Bekere, Laura Krasnova, Brigita Vigante, Gunars Duburs, Rimantas Daugelavicius
Summary: Styrylpyridinium compounds showed antifungal activity against C. albicans cells, some exhibited synergism with fluconazole, but also posed toxicity to mammalian cells.
CHEMICAL BIOLOGY & DRUG DESIGN
(2021)
Article
Chemistry, Physical
Raisarani Sharma, Pravin K. Kar, Sukalyan Dash
Summary: The adsorption of a styrylpyridinium dye on different surfaces and its dependence on the polarity of binary solvent mixtures have been studied. It was found that the extent of adsorption is closely related to the percentage of cosolvent, and the overall polarity of the mixtures has a significant impact on the adsorption process.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Jennifer S. Lewis, Adam P. Gaunt, Arnaud Comment
Summary: Despite more than 85 years of research, the mechanism behind the photodecarboxylation of pyruvic acid remains elusive. This study reveals that instead of decarboxylation, pyruvic acid acts as an electron donor and transfers an electron to an acceptor molecule, leading to degradation and the formation of CO2. The electron transfer occurs via hydrogen bonding, with the hydrated form of pyruvic acid acting as the electron acceptor.
Article
Chemistry, Multidisciplinary
Martyna Durko-Maciag, Denis Jacquemin, Gilles Ulrich, Julien Massue, Jaroslaw Mysliwiec
Summary: Excited-state intramolecular proton transfer chromophores are considered good materials for laser generation due to their four-level photocycle. By rational engineering, it is possible to fabricate tunable lasers with dual fluorescence emission and the potential for white light generation.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Engineering, Chemical
Yinghong Wang, Yicheng Du, Chao Liang, Shasha Li, Kaifeng Du
Summary: This study successfully prepared macroporous protein microspheres using a simple solvent diffusion strategy, showing excellent adsorption ability. The pore size of the microspheres can be controlled by adjusting parameters such as surfactant, temperature, and concentration to meet different requirements.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Spectroscopy
Lea Ress, Dustin Kaiser, Jeannine Gruene, Marius Gerlach, Engelbert Reusch, Tobias Brixner, Andreas Sperlich, Bernd Engels, Ingo Fischer
Summary: An experimental and computational investigation was conducted on the dynamics of the biradical diphenylpropynylidene in dichloromethane and ethanol, revealing a triplet ground state in both solvents. Transient absorption spectra provided insight into the fate of the biradical, with a more complex photochemistry observed in the presence of oxygen. The similarity of the spectra recorded in ethanol with and without oxygen can be explained by the similarity of the reaction products' chromophores.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Applied
Stephen M. Burkinshaw, Kangsheng Liu
Summary: This study investigates the impact of polymer relaxation on the adsorption mechanism of disperse dye on poly(ethylene terephthalate) fibers. The experimental results show that the dyeing behavior is affected by the dyeing temperature and can be divided into three regions. The correlation between the color strength and the polymer structural relaxation supports the relationship between the diffusional behavior of the dye and the molecular motions within the polymer. Furthermore, the glass transition temperature of the poly(ethylene terephthalate) substrate explains the need for elevated dyeing temperatures.
COLORATION TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Wei-Min Tang, Chih-Chung Hu, Meng-Lin Tsai, Chung-Chen Tsao, Chun-Yao Hsu
Summary: This study focuses on the fabrication of dye-sensitized solar cells with a photoanode consisting of mesoporous TiO2 and V2O5 nanoparticles. By rinsing with acetone solution, the specific surface area and dye adsorption amount of TiO2 can be increased, leading to improved performance.
Article
Chemistry, Analytical
Yong-Peng Yang, Fu-Jian Qi, Ya-Long Zheng, De-Chen Duan, Xia-Zhen Bao, Fang Dai, Shengxiang Zhang, Bo Zhou
Summary: This study developed a fast imaging probe for mitochondrial TrxR2 and visualized the increased activity of TrxR2 in cancer cells, as well as the decreased activity in Parkinson's disease and ischemic stroke.
ANALYTICAL CHEMISTRY
(2022)
Meeting Abstract
Biophysics
Alvaro Garcia, Ronald J. Clarke
BIOPHYSICAL JOURNAL
(2019)
Article
Biochemistry & Molecular Biology
Alvaro Garcia, Bogdan Lev, Khondker R. Hossain, Amy Gorman, Dil Diaz, Thi Hanh Nguyen Pham, Flemming Cornelius, Toby W. Allen, Ronald J. Clarke
JOURNAL OF BIOLOGICAL CHEMISTRY
(2019)
Article
Biochemistry & Molecular Biology
Amy Gorman, Khondker R. Hossain, Flemming Cornelius, Ronald J. Clarke
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2020)
Article
Biochemistry & Molecular Biology
K. R. Hossain, X. Li, T. Zhang, S. Paula, F. Cornelius, R. J. Clarke
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2020)
Article
Chemistry, Multidisciplinary
Timothy S. Chisholm, Sameer S. Kulkarni, Khondker R. Hossain, Flemming Cornelius, Ronald J. Clarke, Richard J. Payne
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Microbiology
Muhammad Yasir, Debarun Dutta, Khondker R. Hossain, Renxun Chen, Kitty K. K. Ho, Rajesh Kuppusamy, Ronald J. Clarke, Naresh Kumar, Mark D. P. Willcox
FRONTIERS IN MICROBIOLOGY
(2020)
Review
Biochemistry & Molecular Biology
R. J. Clarke, K. R. Hossain, K. Cao
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2020)
Article
Chemistry, Multidisciplinary
Michelina Catauro, Ylenia D'Errico, Antonio D'Angelo, Ronald J. Clarke, Ignazio Blanco
Summary: The study synthesized hybrid materials of iron (II)-based therapeutic systems via the sol-gel method and modulated drug release kinetics using polyethylene glycol. Interactions between different components in the hybrid materials were studied using Fourier-transform infrared spectroscopy. The bioactivity and potential antibacterial properties of the materials were evaluated.
APPLIED SCIENCES-BASEL
(2021)
Proceedings Paper
Polymer Science
Michelina Catauro, Ignazio Blanco, Ronald J. Clarke, Marika Fiorentino, Antonio D'Angelo, Giuseppina Raffaini
Summary: Controlled and local drug delivery systems of anti-inflammatory agents have potential pharmaceutical and biomedical applications. This study focuses on synthesizing a system composed of SiO2 glass and ketoprofen, an anti-inflammatory drug, via the sol-gel process. The drug release kinetics of the amorphous bioactive materials are investigated, and molecular simulations are performed to study possible interactions between the silica-based surface and ketoprofen molecules.
MACROMOLECULAR SYMPOSIA
(2022)
Editorial Material
Biophysics
Ronald J. Clarke
BIOPHYSICAL REVIEWS
(2023)
Article
Chemistry, Physical
Khondker R. Hossain, Daniel Clayton, Sophia C. Goodchild, Alison Rodger, Richard J. Payne, Flemming Cornelius, Ronald J. Clarke
Summary: Membrane protein structure and function are modulated by interactions with the lipid environment, particularly for P-type ATPases. These ATPases play vital roles in cell physiology, with some pumps possessing polybasic domains that interact with phosphatidylserine in the plasma membrane, affecting ion pumping activity and acting as potential death sensors.
FARADAY DISCUSSIONS
(2021)
Article
Materials Science, Multidisciplinary
Tiesheng Wang, Randy P. Sabatini, Bun Chan, Jingwei Hou, Vien T. Huynh, Nicholas Proschogo, Zixi Xie, Tan Wang, Long Gao, Jiaqi Zhang, Brian S. Hawkett, Ronald J. Clarke, Cameron J. Kepert, Vicki Chen, Girish Lakhwani, Deanna M. D'Alessandro
Summary: Nanoconfinement in metal-organic frameworks was used to oligomerize a fluorescent anthryl monomer, resulting in enhanced fluorescence emission. This study provides inspiration for the design of luminescent composites and encourages further exploration of molecules in nanoconfined spaces.
ACS MATERIALS LETTERS
(2021)
Article
Chemistry, Physical
Saffron J. Bryant, Alvaro Garcia, Ronald J. Clarke, Gregory G. Warr
Summary: Ionic liquids show great potential as electrolytes, solvents, and reaction media, as well as platforms for complex biomolecules, enabling long-term biopreservation and biosensor applications. Research demonstrates the assembly of tethered lipid bilayers in a purely IL environment while retaining functionality of membrane transport proteins, paving the way for non-aqueous microreactors and sensor assemblies.
Proceedings Paper
Polymer Science
Ronald J. Clarke
Summary: Animal cell membranes are composed of a lipid bilayer with embedded proteins, and the distribution of lipids is maintained by lipid pumps. The asymmetric distribution of phospholipids plays a crucial role in cell function and skeletal development.
MACROMOLECULAR SYMPOSIA
(2021)
Article
Chemistry, Multidisciplinary
Alvaro Garcia, Haipei Zou, Khondker R. Hossain, Qikui Henry Xu, Annabelle Buda, Ronald J. Clarke