Article
Chemistry, Multidisciplinary
Zhiwei Qiu, Yitong Xue, Jiyong Li, Yunzhi Zhang, Xinyi Liang, Congying Wen, Houjian Gong, Jingbin Zeng
Summary: Ammonia is an important component of the atmosphere with environmental balancing role, but it is also a toxic gas that can damage respiratory system and mucous membranes. Researchers have developed an optical probe for detecting ammonia concentration, showing potential for environmental monitoring applications.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Thanh-Van Le, Sang-Wha Lee
Summary: This work presents facilely synthesized Au-Ag core-shell nanoparticles as colorimetric sensing probes for highly selective detection of dopamine. The sensing system demonstrates good detection performance in the pH range of 6 to 10, and exhibits excellent selectivity towards dopamine against interfering components. Moreover, the system reliably detects dopamine in spiked human serum.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Daniel Boas, Sergei Remennik, Meital Reches
Summary: We have developed a short peptide consisting of only six amino acids that can simultaneously reduce Au3+ or Ag+ ions and stabilize the resulting nanoparticles. The peptide-capped nanoparticles demonstrated a fast, selective, and pH-dependent detection system for Hg2+, Mn2+, and Fe2+ ions. In addition, the peptide-mediated photoreduction process successfully enveloped gold nanoparticles with a silver shell, resulting in bimetallic Au@Ag core/shell nanoparticles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Environmental Sciences
Pooja Rani, Rajender S. Varma, Karanpal Singh, Roberto Acevedo, Jagpreet Singh
Summary: A waste leaf extract can be used to generate cost-effective gold and gold-silver core-shell nanoparticles, which exhibit improved catalytic and antibacterial capabilities compared to single-metal nanoparticles. This method is effective in removing contaminants from water and countering antibiotic resistance, and it is cost-effective and sustainable.
Article
Chemistry, Analytical
Jinhua Wang, Jiamin Wu, Yuping Zhang, Xia Zhou, Ziwei Hu, Xiaojian Liao, Bingbing Sheng, Kaisong Yuan, Xueqiang Wu, Huaihong Cai, Haibo Zhou, Pinghua Sun
Summary: A new strategy for colorimetric/SERS dual-mode determination of Hg2+ was proposed based on controllable etching Au@Ag NPs. The method showed excellent sensitivity and specificity, suitable for fast detecting of Hg2+.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
E. Shiju, T. Abhijith, Narayana D. Rao, K. Chandrasekharan
Summary: Core-shell structures with tunable multifunctional properties have been studied for their nonlinear optical behavior, showing enhanced optical limiting activity and negative nonlinearity with increasing shell thickness.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Analytical
Yong Jin Ahn, Byung-Ki Ahn, Sung-Woong Kang, Gi-Ja Lee
Summary: A highly sensitive and facile colorimetric assay using peroxidase-like activity of silver core/gold shell nanoplates for detecting biogenic gaseous H2S is introduced. The assay showed a linear relationship between the change in absorbance at 650 nm and the H2S concentration, with a limit of detection of 263 nM and a relative standard deviation of 4.4%. This assay has the potential to be applied in the study of H2S signaling in bacterial physiology and the diagnosis of oral diseases.
Review
Chemistry, Analytical
Mingliang Xue, Wei Mao, Jisen Chen, Fenfen Zheng, Wenhui Chen, Wei Shen, Sheng Tang
Summary: Gold and silver nanomaterials have been widely used in glucose determination due to their specific properties, with advantages of simple operation, low cost, and easy observation in colorimetric methods. Various synthesis methods and strategies for colorimetric determination of glucose using gold or silver nanomaterials are discussed, along with challenges and prospects for their application in glucose detection.
Article
Chemistry, Multidisciplinary
Bowen He, Xi Liu, Liwei Chen
Summary: By using advanced transmission electron microscope techniques, two alternative particle attachment growth pathways dominating the growth of Au@Ag core-shell nanocuboids are directly observed. One pathway involves the in situ reduction of AgCl nanoparticles attached to Au nanorods and the subsequent epitaxial growth of the Ag shell. The other pathway involves the adherence of Ag-AgCl Janus nanoparticles to Au nanorods with random orientations, followed by nanoparticle redispersion and the resulting formation of epitaxial Ag shells on the Au nanorods. The particle-mediated growth of Ag shells is accompanied by the redispersion of surface atoms, tending to form a uniform structure, providing a new mechanistic understanding of core-shell nanostructure synthesis.
Article
Chemistry, Analytical
Naizhi Yao, Xiaoting Li, Yonghui Tian, Zhijun Huang, Yixiang Duan
Summary: By using core-shell Au@PdNPs with high peroxidase-like activity, the colorimetric enhanced LFIA improved the sensitivity and detection limit for low-concentration targets. The use of a high-viscosity chromogenic agent also solved the problem of observation of testing results. This improved LFIA method has potential in clinical diagnostics and should be further promoted.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Applied
Qin Zhang, Luying He, Karuppasamy Kohila Rani, Deyin Wu, Jiaojiao Han, Yanhong Chen, Wenjin Su
Summary: The rapid colorimetric detection of neomycin sulfate was achieved using polyvinyl pyrrolidone-coated gold nanoparticles (Au@PVP NPs) solution. The method showed excellent performance with high sensitivity, low cost, and satisfaction recovery in a wide linear range for neomycin sulfate determination.
Article
Chemistry, Multidisciplinary
Haoran Li, Daqing Chen, Wen Zhou, Donghao Cheng, Danhua Ge, Xiaojun Chen
Summary: We designed a novel strategy for monitoring L-cysteine using bimetallic core-shell nanocubes. The composites displayed strong catalytic effects, making them suitable for constructing a colorimetric sensor for L-cysteine detection.
Article
Chemistry, Multidisciplinary
Qiuzheng Du, Ziwei Jing, Hang Qi, Lihua Zuo, Lin Zhou, Hua He, Zhi Sun
Summary: This work introduced a new colorimetric sensor for quantitative detection of clindamycin utilizing Au@Ag core-shell nanoparticles (Au@Ag NPs). The sensor showed good selectivity and sensitivity for clindamycin, providing a convenient and visually effective detection method. The study demonstrated the potential for visualization detection of other targets with a simple, rapid, intuitive, and low-cost approach.
Article
Chemistry, Analytical
Haiting Ren, Yan Sun, Junjie Wang, Hongxing Qiu, Shenghao Zhang, Yueshou Zhang, Xingxing Yu, Jieyu Hu, Yongjun Hu
Summary: The bimetallic core-shell nanorod SERS substrate nanomaterial (Au NB-DT@Ag NRs) consists of gold nanobipyramids as the inner core and silver-coated nanorods. By modifying with Raman reporter (DT) and varying the amount of silver deposition, the SERS activity of the nanomaterial is improved. The nanomaterial with the best SERS activity can achieve reliable quantitative detection of low concentrations of toxic dyes malachite green and crystal violet.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Multidisciplinary
Ruimeng Sun, Ruijuan Lv, Yang Zhang, Ting Du, Yuhan Li, Lixia Chen, Yanfei Qi
Summary: In this study, core-shell Cu/Au nanoparticles were synthesized and shown to possess peroxidase activity for the detection of H2O2 and glucose. The method exhibits a good detection range and detection limit, making it highly promising for various applications.
Article
Chemistry, Multidisciplinary
Xinyi Liang, Xu Du, Ao Liu, Zhixiong Cai, Jingwen Li, Maosheng Zhang, Qingxiang Wang, Jingbin Zeng
Summary: This study proposes a plasmonic nanosenosr for the detection of mercury(II) in natural samples. The sensor shows high selectivity and feasibility, making it suitable for analyzing complex matrices directly.
CHINESE CHEMICAL LETTERS
(2023)
Article
Biochemical Research Methods
Jingwen Li, Penghui Liang, Tianyu Zhao, Gengchen Guo, Jinyue Zhu, Congying Wen, Jingbin Zeng
Summary: In this study, a novel magnetic-Raman-colorimetric nanoparticle was developed for highly sensitive detection of SARS-CoV-2 nucleocapsid protein antibodies. The method exhibited high accuracy, sensitivity, and reproducibility, and could differentiate different serum samples. This approach is valuable for evaluating disease processes and guiding treatment.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Ying Wang, Jingwen Li, Hongyu Liu, Xu Du, Limin Yang, Jingbin Zeng
Summary: Developed a sensor array with colorimetric and photothermal modes for the identification of multiple pathogenic bacteria. This array based on functionalized nanoparticles can differentiate each bacterium using linear discriminant analysis and show better differentiation compared to other sensing arrays. It can not only distinguish different bacteria but also perform preliminary discrimination of unknown samples.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Baoting Dou, Hui Zhou, Xiguang Han, Po Wang
Summary: In this study, a DNA walker was constructed by introducing a wedge segment and a bimetallic metal-organic framework (MOF) electrocatalyst to solve the decreased efficiency and long reaction time of DNA walkers. The target methylated DNA acted as a single-legged walker, and the immobilization probe on the track contained a complementary wedge segment to inhibit dissociation. The fuel strand modified with a bimetallic MOF drove the target strand to move along the track and load numerous MOF catalysts for enhanced current response in the detection of methylated DNA.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Honglin Li, Shoufu Cao, Hongman Sun, Yonglian Lu, Ying Zhang, Xiaoqing Lu, Jingbin Zeng, Zifeng Yan
Summary: In this study, Cu-based/CxNy catalysts were fabricated to improve the selectivity of C2H4 in CO2RR, overcoming the selectivity and stability issues of Cu catalyst. The precise tailoring of the synergistic effect between different Cu species and carbon nitride hybrids enabled the precise control of the product selectivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Ruyue Yu, Yanxue Shang, Xue Zhang, Jianting Liu, Fangdou Zhang, Xu Du, Hongman Sun, Jingbin Zeng
Summary: Compared to UV-driven catalysts, the use of sunlight to design efficient visible light catalysts has been less explored. In this study, Fe3O4@ZnO@ZIF-8 three-component core-shell nanoparticles were prepared and their photocatalytic degradation performance was investigated under visible light using Rhodamine B (RhB) as a model contaminant. It was found that Fe3O4@ZnO@ZIF-8 achieved a significant enhancement in the photo-catalytic degradation efficiency with 98% of RhB degraded within 100 min, and a reaction rate constant of 0.0292 min-1. These findings highlight the importance of precise tailoring of core-shell Fe3O4@ZnO@ZIF-8 for achieving desired degradation efficiency of organic pollutants under visible light.
CATALYSIS COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yang Liu, Xinyue Jiang, Likun Chen, Yan Cui, Qiu-Yan Li, Xinsheng Zhao, Xiguang Han, Yong-Chao Zheng, Xiao-Jun Wang
Summary: Due to the high designability and tunability, covalent organic frameworks (COFs) have great potential as photocatalysts. However, their photocatalytic performance is hindered by the insufficient separation and transfer of charge carriers. In this study, a new COF (PTZ-TTA-COF) was designed with ordered alignment of electron donor (D) and acceptor (A) subunits, resulting in enhanced charge separation/transfer and improved photocatalytic ability in visible light and air. This study provides a rational strategy for developing high-performance polymeric photocatalysts based on D-A structural COFs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Analytical
Tianyu Zhao, Penghui Liang, Jiaqi Ren, Jinyue Zhu, Xianning Yang, Hongyu Bian, Jingwen Li, Xiaofeng Cui, Chunhui Fu, Jinyan Xing, Congying Wen, Jingbin Zeng
Summary: A tri-mode lateral flow immunoassay (LFIA) platform based on gold-silver alloy hollow nanoshells (Au-Ag HNSs) was developed for the sensitive and accurate quantification of neutralizing antibodies, which are essential for assessing the effectiveness of vaccines.
ANALYTICA CHIMICA ACTA
(2023)
Article
Biophysics
Wei Duan, Jinling Wang, Xiaomeng Peng, Shoufu Cao, Jingjing Shang, Zhiwei Qiu, Xiaoqing Lu, Jingbin Zeng
Summary: We have designed a hydrophilic AgPt-Fe3O4 nanozyme with a unique heterodimeric nanostructure for CO sensing. The nanozyme is highly susceptible to CO poisoning due to the adequate exposure of active metallic sites and efficient interfacial synergy. We have developed a colorimetric strategy for CO detection with a low detection limit of 5.6 ppb.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Energy & Fuels
Zixiao Liu, Yonglian Lu, Chunfen Wang, Yu Zhang, Xiaodie Jin, Junwei Wu, Youhe Wang, Jingbin Zeng, Zifeng Yan, Hongman Sun, Chunfei Wu
Summary: In this study, three calcium-based metal frameworks were used as precursors to obtain nano CaO through a two-step thermal transition process, and it achieved a fast adsorption capacity of 11.8 mmol g-1. The improvement in cyclic performance was attributed to the gradual transformation of the precursor structure into nanosheets, preventing further aggregation of CaO particles during thermal transition. Pore structure was found to have little influence on the adsorption performance, suggesting that high stability can be achieved by avoiding particle sintering. This study highlights the importance of precise tailoring of nano-CaO for CO2 fast adsorption.
Article
Chemistry, Inorganic & Nuclear
Qiong Chen, Yifan Yu, Shuo Zhou, Linna Sha, Guilin Zhuang, Po Wang, Xiguang Han
Summary: Ultrathin Fe-modified Ni2P/Ni5P4 nanosheet arrays hybridized with N-doped carbon grown on Ni foam (Fe-Ni2P/Ni5P4@N-C) were synthesized via a solvothermal-pyrolysis strategy. The optimized Fe-Ni2P/Ni5P4@N-C exhibits superior hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) activities and can work stably for 60 hours at high current density. Impressively, the electrolyzer with Fe-Ni2P/Ni5P4@N-C only needs 1.56V to achieve 10 mA cm-2 current density for water splitting.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Ling Sun, Shuangte Zhao, Linna Sha, Guilin Zhuang, Xiaojun Wang, Xiguang Han
Summary: Electronic regulation via interface engineering is an attractive strategy for boosting electrocatalytic activity. In this study, a self-supported heterostructure electrocatalyst, Ni2P/NiMoP2/CC, is prepared using a feasible hydrothermal-pyrolysis strategy. The as-prepared catalyst exhibits highly efficient activity and stability towards both hydrogen evolution reaction and oxygen evolution reaction. The improved electrocatalytic activity is attributed to the optimized interface electron structure and reduced activation barriers for intermediates. The electrolyser powered by a solar cell shows great potential in solar-to-hydrogen conversion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Cong-Ying Wen, Xinyi Liang, Jianting Liu, Tian -Yu Zhao, Xiang Li, Yu Zhang, Gengchen Guo, Zhuoran Zhang, Jingbin Zeng
Summary: By combining magnetic separation and three types of plasmonic nanoparticles, we have developed an achromatic nanosensor that can simultaneously detect SARS-CoV-2, Staphylococcus aureus, and Salmonella typhimurium. This colorless sensor enables convenient detection of multiple pathogens by observing color changes or measuring absorption spectra.
Article
Chemistry, Multidisciplinary
Shuo Zhou, Qiuyan Shen, Feng-Lei Yang, Wenwen Zhan, Xiaojun Wang, Xiguang Han
Summary: A cuboctahedral N-doped carbon-coated CuO/TiO2 p-n heterojunction was designed and fabricated successfully for the first time, demonstrating enhanced transport and separation of photoinduced e-h pairs. The nitrogen-doped carbon coating plays a pivotal role in promoting the overall performance and effectiveness of the reaction. The CuO-TiO2@N-C exhibits superior photocatalytic efficiency, cycle stability and substrate scope towards cross-dehydrogenative coupling reactions.
Article
Chemistry, Multidisciplinary
Yu Wang, Wenwen Zhan, Lei Yang, Jianwei Zhao, Liming Sun, Xiaojun Wang, Xiguang Han
Summary: A series of micro-nano reactors with different thickness, named TiO2/N-C hollow framework, TiO2/N-C hollow hexahedron assembled by nanosheets, and TiO2/N-C hollow hexahedron assembled by ultrathin nanosheets, were prepared by adjusting the alcoholysis rate of NH2-MIL-125 and then pyrolysis. The research showed that as the thickness of the heterojunction nanosheet decreased, more low-coordination Ti atoms would be exposed, providing effective sites for photocatalytic H-2 evolution. The TiO2/N-C HHUS with the thinnest nanosheet subunit exhibited the best photoelectric performance and the highest photocatalytic hydrogen production activity.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
