Article
Chemistry, Multidisciplinary
Xiaofei Wang, Manping Qian, Jiaxing Jiang, Qiang Gao, Chengxiao Zhang, Honglan Qi
Summary: Mechano-chromic and mechano-enhanced electrogenerated chemiluminescence from tetra[4-(4-cyanophenyl)phenyl]ethene (TCPPE) is reported for the first time. TCPPE displays intense mechano-enhanced ECL and contrastingly mechano-chromic ECL. The application of TCPPE as sensitive bi-functional mechanical force reporters is successfully performed in rewritable and optical-recording applications.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Ningning Wang, Hang Gao, Yunzhi Li, Guangming Li, Weiwei Chen, Zhongchao Jin, Jianping Lei, Qin Wei, Huangxian Ju
Summary: This study developed a new strategy and system using TEA-Pdots to embed coreactants in the ECL mechanism, leading to significantly improved ECL emission strength. The system can be used for in situ ECL microimaging on single living cells without the need for additional permeable treatment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Analytical
Shyang Pei Hong, Natasha Ann Keasberry, Minhaz Uddin Ahmed
Summary: In this study, a screen-printed gold electrode modified with a novel nanocomposite was used to detect Gliadin using electrochemiluminescence. The nanocomposite enhanced the intensity of electrochemiluminescence by 5.6 times compared to the bare gold electrode. The immunosensor showed a linear detection range of 0.005-500 pg/mL, with the lowest limit of detection among other Gliadin immunosensors. It exhibited high selectivity, reproducibility, stability, and excellent recoveries from real samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Beibei Wang, Lu Zhao, Yuyang Li, Xuejing Liu, Dawei Fan, Dan Wu, Qin Wei
Summary: The development of new electrochemiluminescence (ECL) luminophores using metal-organic frameworks (MOFs) is a hot research topic. In this work, a cerium-based organic backbone was developed as an ECL luminophor for the detection of trenbolone (TRE). The Ce-MOFs effectively prevent the self-aggregation and self-quenching of an organic ligand, leading to amplified ECL signals. Platinum nanosheets were further modified on the MOFs to enhance conductivity and antigen loading capacity.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Physical
Shian Dong, Kunming Shi, Jie Chen, Yingke Zhu, Hongfei Li, Weihang Gao, Zhenli Xu, Qinglei Liu, Xingyi Huang
Summary: To achieve high operating voltage and enhanced capacitance, a nanoscale dielectric layer is grafted onto a graphene electrode in this study, resulting in a dielectric-enhanced supercapacitor (DESC) that shows a higher capacitance by 2200% compared to a supercapacitor without dielectric grafting. The capacitance enhancement can be attributed to dielectric polarization, ions desolvation by the dielectric, and enhanced quantum capacitance from charge transfer and ion adsorption in the polymer molecules. A pouch DESC with a 1 M KCl electrolyte is confirmed to cycle up to 50,000 times with a capacitance retention of 87.5%. The optimal electrochemical properties of the DESC are achieved after grafting a 5 nm dielectric layer, providing new insights into the design of high-voltage and high-energy-density aqueous supercapacitors.
Article
Biochemistry & Molecular Biology
Huihua Zhang, Chaoyan Zhang, Hui Qu, Fengna Xi
Summary: In this study, an electrochemiluminescence (ECL) immunosensing platform was developed for highly sensitive detection of tumor biomarker CEA. The platform utilizes platinum nanoparticles (PtNPs) to enhance the ECL signal and achieves a linear range of 0.1 pg mL-1 to 1000 ng mL-1. The immunosensor demonstrated excellent selectivity and stability for CEA detection in serum.
Article
Chemistry, Analytical
Mengyuan Wang, Huixiao Li, Yadi Wang, Xiaodie Hu, Shujun Fang, Huili Ma, Wei Li, Dianlei Wang, Zhili Han
Summary: In this study, gold nanoclusters (AuNCs) were combined with a soft chitosan (CS) nanogel matrix (AuNCs@CS) using a simple one-pot approach. The resulting AuNCs@CS nanogels showed a 2.4-fold enhancement in electrochemiluminescence (ECL) intensity compared to bare AuNCs. This enhancement was attributed to increased Au(0) content, the confinement effect of the chitosan nanogels, and the prolonged excited state lifetime of AuNCs. The AuNCs@CS nanogels were used to develop a label-free ECL immunosensor for ultrasensitive detection of aflatoxin B1 (AFB1) with a significantly lower detection limit compared to previous ECL biosensors.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Qiang Chang, Xinhui Gu, Liming He, Fengna Xi
Summary: In this work, a sensitive electrochemiluminescence (ECL) detection platform for procalcitonin (PCT) is developed based on the in-situ growth of Au nanoparticles (AuNPs) in nanochannels. The sensor exhibits a wide detection range and high sensitivity, making it a promising tool for PCT detection in real samples.
FRONTIERS IN CHEMISTRY
(2023)
Article
Polymer Science
Hang -Kai Qi, Xiao Yang, Qing-Hui Yang, Meng-Bo Luo
Summary: The critical adsorption temperature and process of end-grafted polymer chains with grafting density f on a homogeneous, attractive surface were studied using Langevin dynamics simulations. Results showed that the critical adsorption temperature was roughly constant at low grafting densities far below the critical density separating the polymer brush and mushroom region. It then decreased with increasing grafting density due to repulsive interactions between the polymer chains, and became a constant independent of polymer length at high grafting densities. The adsorption process was found to be dependent on the grafting density, with the adsorption time exhibiting a maximum at half of the critical grafting density.
Article
Chemistry, Multidisciplinary
Xue-Zhi Song, He Wang, Zhuoxi Li, Yu-Lan Meng, Zhenquan Tan, Min Zhu
Summary: Small Co nanoparticles encapsulated in N-doped double-shelled carbon nanocages grafted with thin carbon nanotubes (Co@CNTs@DSCNCs) exhibit higher activity and more favorable kinetics for HER electrocatalysis compared to Co@CNTs@PC with thick CNTs and large Co NPs derived from solid BMZIF cubes.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Dawei Du, Qinghong Geng, Lian Ma, Siyu Ren, Jun-Xuan Li, Weikang Dong, Qingfeng Hua, Longlong Fan, Ruiwen Shao, Xiaoming Wang, Cuiling Li, Yusuke Yamauchi
Summary: Researchers developed an effective approach to synthesize mesoporous PdBi nanocages for electrochemical applications. The method utilizes the hydrolysis of a metal salt to generate precipitate cores as templates for the growth of mesoporous shells with the assistance of polymeric micelles. The resulting mesoporous PdBi nanocages exhibited excellent electrocatalytic performance for the ethanol oxidation reaction.
Article
Polymer Science
Masayuki Gon, Yoshiki Chujo, Olga Zolotarskaya, Kenneth J. Wynne
Summary: This research investigates the effects of introducing the rigid phenylene ethynylene (PEy) moiety as a side chain in polyoxetanes. Different mole percentages of PEy in copolyoxetanes cause variations in UV-VIS spectra absorption, with the rigid side chain decreasing molecular mobility.
Article
Nanoscience & Nanotechnology
Joshua M. Kubiak, Buxuan Li, Mathew Suazo, Robert J. Macfarlane
Summary: The distribution of filler particles within a polymer matrix nanocomposite significantly affects its properties and processability. This study presents a strategy for preparing functional composites with enhanced thermal conductivity. The thermal cross-linking of self-suspended polymer grafted nanoparticles is used to achieve homogeneously dispersed, non-percolating alumina particles in an organic matrix.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Xuwen Gao, Xiaoxuan Ren, Yaojia Ai, Mengwei Li, Bin Zhang, Guizheng Zou
Summary: This study proposes a coreactant-free electrochemiluminescence method using mercaptopropionic acid and hexametaphosphate as the capping agents. The method achieves low-triggering-potential and coreactant-free electrochemiluminescence. The method is used for the sensitive and selective determination of molecular protein ProGRP.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Xiao-Yu Wang, Yi-Ge Feng, Ai-Jun Wang, Li-Ping Mei, Pei-Xin Yuan, Xiliang Luo, Jiu-Ju Feng
Summary: An electrochemical immunosensor was developed for sensitive monitoring of the breast cancer marker HER2, utilizing innovative materials and signal tags to achieve rapid detection with a broad linear range and low detection limit. This sensor shows great potential for screening cancer biomarkers and point-of-care assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.