Article
Chemistry, Multidisciplinary
Bogdan-Ovidiu Taranu, Eugenia Fagadar-Cosma
Summary: The study investigates the electrocatalytic properties of two metalloporphyrins for O-2 and H-2 evolution reactions, aiming to find suitable and low-cost catalysts for water-splitting applications. The results show promising electrocatalytic activity in different pH conditions for the studied porphyrins.
Article
Engineering, Chemical
Bogdan-Ovidiu Taranu, Eugenia Fagadar-Cosma
Summary: Hydrogen generation from electrochemical water splitting, which is considered an eco-friendly alternative energy source, has led to a search for low cost and efficient catalysts. This study investigated four free-base porphyrins as heterogeneous catalysts for the oxygen and hydrogen evolution reactions in alkaline aqueous solutions. The results revealed the rich variety of aggregates formed by the self-assembling property of porphyrin molecules in different organic solvents. The most electrocatalytically active electrodes for the oxygen and hydrogen evolution reactions were identified through experiments in different electrolyte solutions.
Article
Chemistry, Multidisciplinary
Zheng Bo, Meiqi Zhou, Shiyuan Zhou, Yajing Song, Zhu Liu, Honggang Liao, Huachao Yang, Jianhua Yan, Kefa Cen, Xiulin Fan, Qian Yu, Kostya (Ken) Ostrikov, Ju Li
Summary: An anti-electrolytic strategy using physical zwitterionic waterproofing in aqueous electrolytes has been revealed, which improves electrochemical stability and maintains high ionic conductivity.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Miguel Gonzalez, Krysten Minnici, Bailey Risteen, Lei Wang, Lisa M. Housel, Genesis D. Renderos, Kenneth J. Takeuchi, Esther S. Takeuchi, Amy C. Marschilok, Thomas F. Fuller, Elsa Reichmanis
Summary: This study focuses on the rational design of battery systems using surface-modified magnetite particles and the direct covalent attachment of poly [3-(4-carboxypropyl)thiophene] to create robust anodes with low charge transfer resistances and excellent charge capacity retention. By manipulating the native hydroxide layer of the active material, the functionalization strategies used in this work can be applied to various conversion-type electrode materials, contributing to the chemical techniques for modifying active materials to create battery systems with specific performance characteristics.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Paulina K. Wells, Oleh Smutok, Artem Melman, Evgeny Katz
Summary: Enzymes immobilized on a nano-structured surface were used to switch the activity of one enzyme by a local pH change produced by another enzyme, leading to the development of a potentially versatile method for controlling multiple enzymes and pathways in complex biocatalytic systems.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Environmental Sciences
Humayra Begum, Md Nurnobi Islam, Sami Ben Aoun, Jamil A. Safwan, Syed Shaheen Shah, Md Abdul Aziz, Mohammad A. Hasnat
Summary: This study explores the effect of three coinage metals (Cu, Ag, and Au) on Pt electrode for the electrochemical reduction of nitrate in neutral solution. Among the three electrodes, Pt-Cu exhibits the best catalytic activity, while Pt-Au electrode shows no reactivity. Nitrate reduction at Pt-Cu electrode yields ammonia via both direct and indirect reaction pathways. The cathodic transfer coefficients and standard rate constants for nitrate reduction were calculated for Pt-Cu and Pt-Ag electrodes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Dan Zhang, Yongjie Sun, Zhichao Wang, Fang Liu, Xuanjun Zhang
Summary: In this study, a novel nanochannel system with light-controlled inert/active-switchable biomimetic sensors was developed for on-demand detection of SO2. The device showed a sensitive and reliable performance in detecting SO2 in a wide concentration range from 10 nM to 1 mM. The findings highlight the potential of light-activatable nanochannels for realizing unbiased and real-time analyte recognition.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Mingjun Ma, Jinhao Xu, Haiqing Wang, Xiaowei Zhang, Shuxian Hu, Weijia Zhou, Hong Liu
Summary: The multi-interfacial engineering in hierarchical CoNi2S4/WS2/Co9S8 (NiCoWS) hybrid frameworks can enhance the performance of hydrogen evolution reaction, with NiCoWS showing excellent HER efficiency in different pH conditions. The unique morphological, electronic, and interfacial structures of NiCoWS contribute to its robust performance in electrocatalysis.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Li Ma, Xianang Gao, Xin Liu, Xiaojun Gu, Baoying Li, Beibei Mao, Zeyuan Sun, Wei Gao, Xiaofei Jia, Jianbin Chen
Summary: Organic electrosynthesis, as a green and advantageous alternative to traditional synthetic methods, has made remarkable progress in recent years by using sustainable electricity as traceless redox agents. To overcome the issues of over-oxidation/reduction in direct electrolysis, mediated or indirect electrochemical processes have become increasingly important and have improved product selectivity. Heterogeneous catalysts, with their high activity, stability, and recyclability, have received more attention compared to molecular electrocatalysts. In this review, the recent progress in heterogeneous catalysts modified electrodes for organic electrosynthesis is summarized, focusing on structural optimization, electrochemical performance, and reaction mechanisms. Key challenges and future directions in this field are also discussed.
CHINESE CHEMICAL LETTERS
(2023)
Article
Engineering, Environmental
Wei Jin, Hengbo Wu, Weiquan Cai, Baohua Jia, Munkhbayar Batmunkh, Zexing Wu, Tianyi Ma
Summary: This study presents a novel class of electrocatalysts with optimized structures and remarkable catalytic activities, capable of driving hydrogen and oxygen evolution reactions with small overpotentials in alkaline, neutral, and acidic conditions. Furthermore, the electrocatalysts exhibit excellent stability for overall water-splitting reactions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Anne Geraldine Guex, David J. Poxson, Daniel T. Simon, Magnus Berggren, Giuseppino Fortunato, Rene M. Rossi, Katharina Maniura-Weber, Markus Rottmar
Summary: This study proposes a method to manipulate fibroblast to myofibroblast differentiation by controlling the pH of the cellular microenvironment using electronic ion pump technology, leading to reduced expression of scar-related markers and promoting scar-free wound healing.
APPLIED MATERIALS TODAY
(2021)
Article
Chemistry, Inorganic & Nuclear
Arik Raslin, John C. Douglin, Amit Kumar, Marcelo Fernandez-Dela-Mora, Dario R. Dekel, Zeev Gross
Summary: This study investigates the performance of cathodes in fuel cells for efficient and selective reduction of oxygen to water. The study explores the influence of various factors such as the size of substituents, axial ligands, and porosity on the absorption properties of the catalysts. The cobalt-based catalysts exhibit excellent activity and selectivity compared to platinum.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Hailing Zhang, Xinli Wang, Dingding Zhu, Jun Zhao, Tingting Yang, Yichun Zhou, Jian Lu, Canying Cai, Jianyu Huang, Guangwen Zhou
Summary: High-temperature oxidation of Hf-modified NiAl alloy at 950 degrees C results in the formation of gamma-Al2O3 and theta-Al2O3. Exclusive formation of HfO2 particles is observed at the adherent gamma-Al2O3/NiAl interface, while multi-layered oxide growth occurs at the theta-Al2O3/NiAl interface. The difference is explained by first-principle calculations demonstrating that the lattice of theta-Al2O3 is more favorable to host Hf and Ni atoms, leading to the growth of mixed oxides at the theta-Al2O3/NiAl interface.
Article
Electrochemistry
Francisco W. S. Lucas, Nathanael C. Ramos, Daniel K. Schwartz, J. Will Medlin, Adam Holewinski
Summary: Thiolate self-assembled monolayers (SAMs) are commonly used to modify surface properties, including catalytic activity. It is shown that irreversible changes to the metal surface, caused by the formation and removal of thiolate SAMs, can lead to significant changes in catalytic properties, regardless of specific interactions with reactants.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Junbo Liu, Shengyang Tao
Summary: This paper prepared beta-PbO/Pb electrodes by laser processing and confirmed the higher adsorption of LA on the beta-PbO surface. The beta-PbO/Pb electrode showed higher electrocatalytic activity compared to the alpha-PbO/Pb and Pb electrodes. Complete conversion of LA with an 85% yield of VA and greater than 90% selectivity was achieved at a much lower electrode potential of -1.4 V (vs RHE). Additionally, laser processing technology provides a strategy for rapid electrode processing for large-scale continuous production in industry.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Alexander M. Prophet, Kritanjan Polley, Gary J. Van Berkel, David T. Limmer, Kevin R. Wilson
Summary: The oxidation kinetics of iodide by ozone at the air-water interface is studied in single microdroplets. Molecular simulations and kinetic modeling are used to understand the underlying multiphase mechanism.
Article
Chemistry, Multidisciplinary
Rong Zhang, Jiajing Lan, Fei Wang, Shumei Chen, Jian Zhang
Summary: By utilizing 1,1'-ferrocene dicarboxylic acid as a chelating and surface protection ligand, we have synthesized multi-nuclear indium oxide clusters with varying nuclear sizes, including heptanuclear and thirteen-nuclear clusters. These clusters possess labile coordination sites, allowing for structural modification and self-assembly, resulting in the formation of various cluster structures.
Article
Chemistry, Multidisciplinary
Hui Wang, Hui Liu, Mingsen Wang, Jiaheng Hou, Yongjun Li, Yuancheng Wang, Yingjie Zhao
Summary: Two supramolecular complexes were prepared using CBs and M1, and their single-crystal structures were analyzed by SCXRD. The unexpected 1:2 self-assembly structure between M1 and CB[8] was discovered for the first time. These complexes exhibit unique photophysical properties and provide valuable information about the structure and photophysical properties of supramolecular complexes.
Article
Chemistry, Multidisciplinary
Chang-Hee Lee, Sookil Park, Sanggil Kim, Ji Young Hyun, Hyun Soo Lee, Injae Shin
Summary: The epidermal growth factor receptor (EGFR) is a cell-surface glycoprotein involved in cell proliferation and tumor development. This study used a fluorescently labeled EGFR to investigate its time-dependent endocytosis in live cells and found that appended glycans affect EGFR internalization. Additionally, the study detected sialic acid residues attached to EGFR on the live cell surface using FRET-based imaging. This research provides valuable insights into the cellular functions of EGFR.
Article
Chemistry, Multidisciplinary
Subhankar Sahu, Lokesh Kumar, Sumita Das, Dipti Gupta, Ruchi Anand
Summary: This study proposes a strategy that combines organic electronics with biosensor scaffolds to create a compact device for monitoring environmental aromatic pollution. By coupling biosensing protein MopR with an organic electrochemical transistor (OECT), a sensor module capable of efficient detection of phenol was designed. Exclusive phenol detection with minimal loss of sensitivity could be achieved in complex pollutant mixtures and real environmental samples.
Review
Chemistry, Multidisciplinary
Changseok Lee, Hyung-Joon Kang, Sungwoo Hong
Summary: The formation of C-N bonds through hydroamination reactions catalyzed by nickel hydrides has been a topic of recent interest. This approach offers a way to efficiently transform a variety of alkene and alkyne substrates into compounds enriched with C-N bonds. The review provides a concise overview of the underlying reaction mechanisms and aims to stimulate further progress in NiH-catalytic techniques and catalyst design.
Article
Chemistry, Multidisciplinary
Yueci Wu, Lu-Lu Sun, Hai-Hao Han, Xiao-Peng He, Weiguo Cao, Tony D. James
Summary: Drug-induced liver injury (DILI) is a common cause of acute liver failure in the USA and Europe, but most cases can be recovered or prevented by discontinuing the offending drug. Recent research has found that peroxynitrite (ONOO-) can be used as a potential indicator for early diagnosis of DILI, and there is an urgent need to establish a method to detect and track peroxynitrite in DILI cases. In this study, a FRET-based nano fluorescent probe CD-N-I was developed, which showed high selectivity and sensitivity in detecting peroxynitrite. The probe successfully detected exogenous peroxynitrite in live cells and endogenous peroxynitrite in APAP-induced liver injury of HepG2 cells.
Article
Chemistry, Multidisciplinary
Dmitry L. Lipilin, Mikhail O. Zubkov, Mikhail D. Kosobokov, Alexander D. Dilman
Summary: This article describes a direct photocatalytic method for the thiolation of unprotected acids, which was previously challenging. By using a thionocarbonate reagent with an N-O bond, the efficient conversion of carboxylic acids to thiols is achieved.
Article
Chemistry, Multidisciplinary
Jason Malenfant, Lucille Kuster, Yohann Gagne, Kouassi Signo, Maxime Denis, Sylvain Canesi, Mathieu Frenette
Summary: Raman microscopy can reveal compound-specific vibrational fingerprints without sample preparation. The combination of efficient theoretical calculations and a user-friendly software can accurately predict peak positions and provide match scores to assist with structure determination.
Article
Chemistry, Multidisciplinary
Jayoh A. Hernandez, Paul S. Micus, Sean Alec Lois Sunga, Luca Mazzei, Stefano Ciurli, Gabriele Meloni
Summary: Essential trace metals play crucial roles in the survival and virulence of bacterial pathogens. Helicobacter pylori requires nickel for colonization and persistence in the stomach, and NixA is an essential nickel transporter in this process. This study characterizes the selectivity and electrogenic nature of NixA-mediated nickel transport.
Article
Chemistry, Multidisciplinary
Tarali Devi, Kuheli Dutta, Jennifer Deutscher, Stefan Mebs, Uwe Kuhlmann, Michael Haumann, Beatrice Cula, Holger Dau, Peter Hildebrandt, Kallol Ray
Summary: This study emphasizes the importance of subtle electronic changes and secondary interactions in the stability of biologically relevant metal-dioxygen intermediates. It also shows that the role of the chloride ligand in stabilizing the Fe-III-(OOBu)-Bu-t moiety can extend to other anions, including the thiolate ligand.
Article
Chemistry, Multidisciplinary
Jacqueline R. Santhouse, Jeremy M. G. Leung, Lillian T. Chong, W. Seth Horne
Summary: By studying the folding kinetics and mechanism of the BdpA sequence, researchers found that altering the backbone connectivity can affect protein folding. This suggests that protein mimetic chains have a significant degree of plasticity in transitioning between unfolded and folded states.
Article
Chemistry, Multidisciplinary
Divanshu Gupta, Ralf Einholz, Holger F. Bettinger
Summary: This study presents the first direct spectroscopic evidence of a cyclic seven-membered iminoborane. Compared to linear amino-iminoboranes, this cyclic iminoborane exhibits weakened bond strength and lower Lewis acidity value. The study suggests that the reduced ring strain of cyclic iminoborane prevents nitrogen fixation but allows facile (2 + 2) cycloaddition reaction with C2H4.
Article
Chemistry, Multidisciplinary
Renny Mathew, Aniruddha Mazumder, Praveen Kumar, Julie Matula, Sharmarke Mohamed, Petr Brazda, Mahesh Hariharan, Brijith Thomas
Summary: This study reveals the packing arrangement of partially disordered nitro-perylenediimide (NO2-PDI) using a synergistic approach that combines 3D ED, ssNMR, and DFT techniques. By overcoming these challenges, this methodology opens up new avenues for material characterization, driving exciting advancements in the field.