Article
Chemistry, Analytical
Hossieny Ibrahim, Yassien Temerk
Summary: A novel electrochemical sensor based on nanosized gold particles was constructed for the detection of Spironolactone (SPL), showing good catalytic activity and high sensitivity. The sensor was proven to be reliable for the detection of SPL in tablets, human fluids, and patient plasma, and compared favorably with UHPLC analysis.
MICROCHEMICAL JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Livia Alexandra Dinu, Sevinc Kurbanoglu
Summary: Graphene-based nanozymes have the potential to replace enzymes in biosensors and offer a versatile platform for bonding with complex biochemical environments. This review provides an overview of the classification, development, and synthesis of functionalized graphene-based nanozymes for electrochemical sensor design. It also discusses their application in constructing electrochemical sensors for pollutants, drugs, and various water and food samples, as well as the challenges and potential solutions related to their use as electrocatalytic materials.
Review
Chemistry, Multidisciplinary
Livia Alexandra Dinu, Sevinc Kurbanoglu
Summary: Graphene-based nanozymes, as a new type of enzyme substitute, have many advantages. This review discusses the application of nanozymes in the development of biosensors, and introduces the classification, synthesis methods, and application scenarios of different functionalized graphene-based nanozymes. In addition, the challenges and potential solutions for using nanozymes as electrochemical sensor materials are also discussed.
Article
Chemistry, Multidisciplinary
Atul Kumar Tiwari, Hari Prakash Yadav, Munesh Kumar Gupta, Roger J. J. Narayan, Prem C. C. Pandey
Summary: A highly fluorescent, sensitive, and selective fluorometric assay for detecting Hg2+ ions was developed using vancomycin functionalized and polyethyleneimine stabilized gold nanoparticles (PEI-f-AuNPs@Van). The gold nanoparticles exhibited strong fluorescence properties with excitation and emission wavelengths of 320 nm and 418 nm, respectively. The detection limit for Hg2+ ion was determined to be 0.988 nM within a linear range, while in natural environmental samples it was 12.5 nM. The designed probe showed high selectivity for mercury (II) cations among other divalent cations.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Physical
Ana Claudia Pedrozo da Silva, Camila Fabiano de Freitas, Camila Aparecida Errerias Fernandes Cardinali, Thais Lazarotto Braga, Wilker Caetano, Maria Ida Bonini Ravanelli, Noboru Hioka, Andre Luiz Tessaro
Summary: This study developed a cancer nanoplatform for Photodynamic Therapy by loading Erythrosine B onto silica nanoparticles, showing selective effectiveness against Gliobastoma Multiforme (GBM) cancer cells. The nanoparticles exhibited strong attachment of Erythrosine B, preventing premature leakage, and potential applications for PDT with around 50% cell elimination.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Analytical
Li Ruiyi, Jia Hui, Li Nana, Xu Dan, Li Zaijun
Summary: The paper describes the synthesis of gold-graphene hybrid using histidine-functionalized graphene quantum dot as the linker between gold and graphene. The hybrid exhibits good dispersion and catalytic activity. By coupling with DNA cycling signal amplification, the hybrid is able to detect chlorpyrifos in fruits with high sensitivity and selectivity.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Chenhong Yu, Li Li, Yaping Ding, Huajie Liu, Hanyue Cui
Summary: This paper introduces a novel electrochemical aptasensor for trace analysis of cortisol, which integrates molecular imprinting techniques. The sensor, based on functionalized graphene and nitrogen-doped carbon quantum dots, exhibits linearity and a low detection limit. Moreover, it can determine cortisol in salivary samples with high recovery values.
Article
Chemistry, Physical
Rahul S. Salunke, Yogesh T. Nakate, Ahmad Umar, Umesh T. Nakate, Rafiq Ahmad, Dhammanand J. Shirale
Summary: The sensor electrode with gold nanoparticles (AuNPs) functionalized single polypyrrole nanowire (PpyNW) showed high sensitivity and an ultra-low detection limit during arsenic (III) detection in solution.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Rajan Singh, Rajiv K. Kar
Summary: The surface functionalization of graphene oxide (GO) with l-cysteine shows promise for enzymatic and non-enzymatic bio-sensing and biomedical applications. Characterizing Cys-GO through spectroscopy techniques revealed differences in chemical nature and particle size distribution compared to GO. Computer simulations confirmed that a disulfide bond between Cys-GO sheets stabilizes the structure and reduces random movement, providing insights for the design of graphene-based nanosheets in nanocomposite development and sensing applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Thi Nhat Thang Nguyen, Nam Thi Pham, Dai-Hung Ngo, Subodh Kumar, Xuan Thang Cao
Summary: In this study, a new method was proposed to attach molecularly imprinted polymers (MIPs) on the surface of reduced graphene oxide (rGO) through covalent bonding. The MIP units were covalently bonded on the rGO material via click chemistry under sonication power, excluding harmful solvents and energy-intensive processes. The electrochemical sensor fabricated using this strategy showed enhanced sensitivity, selectivity, stability, and reproducibility for the detection of chloramphenicol (CAP) in water and real honey samples.
Article
Engineering, Electrical & Electronic
D. Mathivanan, K. S. Shalini Devi, G. Sathiyan, Ankit Tyagi, V. A. O. P. da Silva, B. C. Janegitz, Jai Prakash, Raju Kumar Gupta
Summary: This study introduces an electrochemical sensor based on nanocomposites of polypyrrole, graphene oxide, and gold nanoparticles for efficient detection of hydrogen peroxide, showing high sensitivity and a wider linear response range. The sensor exhibited high stability and repeatability in practical applications.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Multidisciplinary
Laura Zanetti-Polzi, Patrick Charchar, Irene Yarovsky, Stefano Corni
Summary: Through theoretical investigation, we have revealed the impact of peptide-ligand environment on the pH-responsive fluorescence of gold nanoclusters. Our findings show that subtle changes in the hexapeptide sequence can significantly alter the pH response of the clusters, providing insights into the underlying mechanism.
Article
Chemistry, Applied
Natavan Hasanova, Saliha Esin Celik, Resat Apak
Summary: A simple and sensitive nanoparticle-based fluorometric method has been developed to determine the total content of biogenic amines in food samples. This method provides important information about the quality and safety of food products.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Anam Naz Soomro, Huma Shaikh, Muhammad Imran Malik, Jamil A. Buledi, Sehrish Qazi, Amber Solangi
Summary: This study developed an electrochemical sensor based on fluorene intercalated graphene oxide for the rapid detection of coenzyme Q10 (CoQ10). The sensor exhibited high selectivity, accuracy, and stability, and was successfully used for the detection of CoQ10 in various samples such as fruits, vegetables, nuts, human blood serum, and pharmaceuticals.
Article
Chemistry, Multidisciplinary
Sandeep Kumar, Yohanes Pramudya, Kai Mueller, Abhinav Chandresh, Simone Dehm, Shahriar Heidrich, Artem Fediai, Devang Parmar, Delwin Perera, Manuel Rommel, Lars Heinke, Wolfgang Wenzel, Christof Woll, Ralph Krupke
Summary: Graphene is inherently sensitive to vicinal dielectrics and local charge distributions, and can be used as a sensor; metal-organic frameworks can selectively adsorb specific molecular species; growing a surface-mounted metal-organic framework directly onto graphene field-effect transistors demonstrates a selective ethanol sensor with unprecedented shifts in Dirac point voltage response.
ADVANCED MATERIALS
(2021)
Article
Electrochemistry
Liang Zhu, Yingbing Zhang, Xiaoyu Zhao, Yaoxin Jiao, Zijian Zhao, Yanfei Wang, Nianjun Yang
Summary: Coating LiMn2O4 with Al2O3 and PPy using a sol-gel method improves electron conductivity, ion migration rate, and reduces Mn ion dissolution, resulting in enhanced Li ion storage performance of PPy/Al2O3/LMO. This strategy could be applied to synthesize other cathode materials for lithium ion batteries.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Analytical
Xiaoyu Zhao, Haoqiang Gao, Yongdan Hou, Lemuel Gbologah, Xiangdong Zeng, Yanfei Wang
Summary: Quartz Crystal Microbalance (QCM) is a scientific instrument based on the piezoelectric effect of quartz crystals, offering versatile, reliable, and sensitive in-situ sensing capabilities for small quantity variations. QCM and Electrochemical-QCM (EQCM) techniques have been used for precise analysis and control of crystallization and electrodeposition processes, providing implicit information through complex frequency changes. The future applications of QCM in this field show great potential and promise.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xiaoyu Zhao, Zhenni Guo, Yongdan Hou, Lemuel Gbologah, Shue Qiu, Xiangdong Zeng, Ruge Cao, Juankun Zhang
Summary: A sensitive molecular imprinted electrochemical sensor was developed for rapid detection of coumarin. The sensor showed high sensitivity, stability, and rapid response, making it suitable for real sample detection.
Article
Chemistry, Physical
Xiaoyu Zhao, Haoqiang Gao, Yongdan Hou, Yanfei Wang, Liang Zhu
Summary: Compared with traditional control methods, a heterogeneous functional monolayer is an effective approach to induce desired crystal forms in the drug crystallization process under easier control conditions. This study also demonstrates the crystallization process of template-induced heterogeneous nucleation and investigates the crystallization growth mechanisms through molecular modeling.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Xiaoyu Zhao, Yingbing Zhang, Yongdan Hou, Zijian Zhao, Yaxin Gong, Yanfei Wang, Huige Wei, Vilas G. Pol
Summary: In this paper, a Ti-based MXene and a ZIF-67-based CoS2/C particles were successfully synthesized as a composite electrode material with significantly improved capacity, rate performance, and cycling stability through the shortening of the charge transfer path.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Physical
Lele Cui, Xiaoyu Zhao, Haijiao Xie, Zhenghua Zhang
Summary: In this study, a encapsulation engineering strategy is proposed to improve the stability of composite cathodes without causing activity loss. By tightly covering the surface of traditional cathodes with an ultrathin carbon layer, the composite cathodes achieved high stability and maintained almost unaffected activity. Experimental and theoretical analysis revealed the underlying mechanism of electron penetration-triggered activation.
Article
Engineering, Environmental
Xiaoyu Zhao, Lixiao Zheng, Yongdan Hou, Yanfei Wang, Liang Zhu
Summary: Low-cost and highly efficient extraction of lithium from brine is the key to solving energy and environmental problems for sustainable development. This study proposed two innovations in electrochemical lithium extraction technology, including the use of layered Ti3C2-MXene and LiMn2O4 electrode, and the application of pulse electric field control method. The results showed that this method achieved high selectivity for lithium extraction under low initial lithium/sodium ratios.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Xiaoyu Zhao, Shuo Yang, Yongdan Hou, Haoqiang Gao, Yanfei Wang, Daniel A. Gribble, Vilas G. Pol
Summary: The supply and demand of lithium resources are seriously unbalanced due to the rapid growth of energy storage technologies designed to meet proposed carbon emission reduction targets. Liquid solutions such as seawater, salt-lake brine, and underground brine contribute greatly to this development due to their low cost and abundant reserves. Electrochemical methods, known for their selectivity, environmental friendliness, and low energy consumption, show promising potential in extracting lithium from solutions. This paper reviews the operation modes of electrochemical lithium extraction processes and significant developments in key electrode materials, analyzes trends in development routes, and identifies future research directions.
Article
Chemistry, Physical
Xiaoyu Zhao, Wei Ran, Zixuan Wang, Jiefang Sun, Rui Liu, Jingfu Liu
Summary: This article investigated the structural transformation of Pd shells on Au nanocubes in different electrolytes at various electrochemical windows. It was found that Pd sites are stable under basic and neutral conditions but experience severe structure evolution under acidic conditions. Pd atoms react with H+ under acidic conditions to form Pd ions, which are easily coreduced with Au ions into surface alloys.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Environmental
Xiaoyu Zhao, Yaxin Gong, Kai Gao, Yanfei Wang, Hui Ying Yang
Summary: A composite electrode material, LiMn2O4-Pyr-2D, was designed by combining a 2D pyrazine-linked covalent organic framework (COF) with LiMn2O4, which effectively enhanced the material's resistance to elevated temperatures and improved the efficiency of lithium extraction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Xiaoyu Zhao, Yu Han, Kai Gao, Tianya Cao, Yanfei Wang, Ruge Cao
Summary: In this study, molecular dynamics simulations were used to investigate the effects of different solvents and additives on the crystal habit of d-xylose. The results showed that solvent polarity influenced the hydrogen bonding distance, while an increase in additive concentration was favorable in reducing the aspect ratio.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.
