Article
Chemistry, Multidisciplinary
Yaliang Huang, Ting Sun, Wendi Li, Lin Liu, Gang Liu, Xinyao Yi, Jianxiu Wang
Summary: We propose a concept for ligase detection by converting aggregation-based homogeneous analysis into a surface-tethered electrochemical assay through the streptavidin-biotin interaction. The method demonstrated the detection of Sortase A (SrtA) both in vitro and Staphylococcus aureus (S. aureus). The strategy integrates the advantages of homogeneous reaction and heterogeneous detection, making it an ideal means for the fabrication of various sensing platforms using biotin-labeled and sequence-specific peptide or nucleic acid substrates.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Yangyang Cheng, Anh-Tuan Pham, Takehiro Kato, Bumhee Lim, Dimitri Moreau, Javier Lopez-Andarias, Lili Zong, Naomi Sakai, Stefan Matile
Summary: Ellman's reagent has been causing confusion and concern as a probe for thiol-mediated uptake due to its inefficiency, prompting a search for more potent inhibitors. The use of fluorescent cyclic oligochalcogenides revealed inhibitors with nanomolar activity that are over 5000 times more effective than Ellman's reagent. The complexity of thiol-mediated uptake was highlighted by different activities found with different reporters.
Article
Chemistry, Organic
Olga Firstova, Oleg Melnyk, Vincent Diemer
Summary: The arylthiol 4-mercaptophenylacetic acid is a powerful catalyst for the reduction of selenosulfide bonds by the water-soluble trisodium salt. It is particularly suitable for working with unprotected peptidic substrates and does not induce deselenization reactions.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Yunxiao Feng, Gang Liu, Ming La, Lin Liu
Summary: In this study, a label-free peptide substrate was used to induce the aggregation of AuNPs for visual analysis of Mpro activity. Co-assembly of AuNPs and peptide on an electrode surface allowed for the development of a simple and sensitive electrochemical method for detecting Mpro in serum samples.
Article
Chemistry, Analytical
Shilpa Rana, Amandeep Kaur, Anu Bharti, Suman Singh, Archana Bhatnagar, Nirmal Prabhakar
Summary: A novel spiegelmer-based biosensor has been developed for the detection of hepcidin in human serum samples, showing high sensitivity and stability. The sensor utilizes a specific thiolated spiegelmer immobilized on a nanocomposite and is evaluated using electrochemical impedance spectroscopy, demonstrating promising applicability for clinical monitoring of hepcidin.
ANALYTICA CHIMICA ACTA
(2021)
Article
Engineering, Chemical
R. N. Dalila, M. K. Md Arshad, Subash C. B. Gopinath, Conlathan Ibau, M. M. N. Nuzaihan, M. F. M. Fathil, U. Z. Mohd Azmi, Periasamy Anbu
Summary: A label-free Faradaic electrochemical impedimetric was developed for highly sensitive detection of C-reactive protein (CRP) using a gold interdigitated microelectrode biosensing platform enhanced by a gold nanoparticle-decorated molybdenum disulfide (Au-NPs/MoS2) nanosheet. The developed immunoassay showed a linear detection range of CRP and demonstrated excellent performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Analytical
Weixiang Huang, Chunli Yang, Jiaxi Gao, Jingjing Ye, Ruo Yuan, Wenju Xu
Summary: This study presents the design of an electrochemical biosensor based on your mimicking Au@FeCo nanozymes and bicycled hairpin assembly (BHA) for synergistic signal amplification. By immobilizing the enzyme-like FeCo alloy in Au nanoparticles, the resulting Au@FeCo hybrids exhibit improved electronic conductivity and active surface area, as well as excellent mimic catalase activity. The combination of Au@FeCo mimic catalase activity and BHA leads to a significantly increased current signal, enabling the creation of a highly sensitive electrochemical biosensor with potential applications in actual samples.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
Liangliang Lin, Yunming Tao, Sergey A. Starostin, Chengdong Li, Hongyu Huang, Ailin He, Yingjun Wu, Volker Hessel, Kostya Ken Ostrikov
Summary: A dielectric barrier discharge (DBD) plasma was used to reactivate spent Pd/Al2O3 catalysts, and the gas composition in the plasma process affected the extent of coke elimination and electrochemical performance of the reactivated catalysts. The electrochemical performance was found to improve with the increase of gas flow rate and treatment time for Ar and N2 gases, but decrease for O2 gas. Higher oxidation degrees of Pd reduced the electrochemical performance. This study presents a new strategy for reusing waste catalysts in a simple and environment-friendly manner.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Mengdi Lu, Haifeng Zhou, Wei Peng, Fang Wang, Ming Lin, Yang Zhang, Jijun Zhao, Jean-Francois Masson
Summary: In this study, a dual-mode electrochemical-surface plasmon resonance (EC-SPR) optical fiber sensor was developed for real-time quantitative investigation of heavy metal ions, offering high selectivity and sensitivity. The sensor exhibited good performance for monitoring Hg2+ and Cu2+ ions, even in the presence of other ions. The proposed fiber-based EC-SPR sensor showed advantages of real-time, miniaturized, and cost-effective sensing, paving the way for on-site environmental monitoring applications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Hilary A. Weismiller, Tyler J. Holub, Brad J. Krzesinski, Martin Margittai
Summary: Oxidative stress is involved in tauopathies, where different isoforms of tau protein may have various fibril structures. The presence of cysteines in four-repeat tau allows for the formation of intramolecular disulfide bonds, resulting in structurally constrained monomers.
JOURNAL OF BIOLOGICAL CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Guadalupe Sanchez-Obrero, Irene Humanes, Rafael Madueno, Jose Manuel Sevilla, Teresa Pineda, Manuel Blazquez
Summary: This work focuses on the surface characterization of quaternary gold alloys and pure gold substrates. The study involves the evaluation of surface microstructure and composition using various techniques. The research also explores the corrosion resistance of 18K gold alloys and investigates the modification of metallic surface properties using self-assembled monolayers (SAM) formed from organic thiols. The study provides fundamental knowledge for potential applications in improving the bioactive properties of jewelry pieces based on 18K gold alloys.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Nathalie de la Torre-Miranda, Laoise Reilly, Pierre Eloy, Claude Poleunis, Sophie Hermans
Summary: Cyanide salts, despite being toxic, are currently used in gold extraction processes as leaching agents. Thiosulfate, a greener alternative, is limited by the difficulty of recovering gold thiosulfate from the leachate using activated carbon, which is effective for gold-cyanide adsorption. To overcome this, activated carbon has been covalently functionalized with thiol groups (-SH) using cysteamine as a thiol-carrier molecule. The functionalized carbon achieves up to 100% gold recovery in 8-hour contact, and its performance is seemingly unaffected by the pH of the solution.
Article
Chemistry, Analytical
Ying Yang, Qian Lei, Jun Li, Cheng Hong, Zhenting Zhao, Hongyan Xu, Jie Hu
Summary: The electrochemical nitrite sensor based on gold nanoparticles modified molybdenum disulfide and reduced graphene oxide shows excellent performance in terms of high sensitivity, short response time, low detection limit, and good linear detection range. The synergistic effect between MoS2 and rGO nanosheets, along with the catalytic property of appropriate content of Au nanoparticles, contributes to the outstanding electrochemical performances of the sensor.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Physical
Fares Almomani, Rahul R. Bhosale
Summary: The study focuses on improving the electro-catalytic activity (ECA) of Ni electrodes for the electrolytic production of hydrogen (POH) by electrodeposition of cobalt (Co). Results show a significant enhancement in ECA with the Ni-Co bimetallic electrode compared to the Ni electrode, requiring less input overpotential energy for the same POH rate under constant current density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Tao Wang, Zheng Li, Runfa Zong, Jingzhe Li
Summary: This study investigates the reaction kinetics and mechanism of thiol etching of gold using quartz crystal microbalance as a sacrificial probe. The study demonstrates the importance of intact thiol and amino on the etching ability, the influence of applied potentials on the etching process, and the critical role of two carbon atoms in the spacer. This work provides insights into the thiol etching reaction of gold and elucidates the underlying kinetics and mechanism.
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)