Article
Environmental Sciences
Peng Li, Takeshi Furuta, Takuya Kobayashi
Summary: Conventional colorimetric reagents for residual chlorine measurement have been widely used, but this study found that micro-particles could cause erroneous measurements, particularly in relation to inorganic and organic particles. The results suggest that filtration could be a potential solution to address the issue of erroneous measurements caused by micro particles.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Engineering, Environmental
Yang Guo, Jie Xu, Xueling Bai, Yan Lin, Wenfeng Zhou, Jing Li
Summary: Chlorine dioxide (ClO2) is commonly used as an alternative disinfectant to chlorine due to its high bactericidal effect and lower formation of halogenated disinfection byproducts (DBPs). However, this study found that certain aliphatic amines react rapidly with ClO2, leading to the formation of free available chlorine (FAC) and its related DBPs. The presence of aliphatic amines enhances the formation of FAC during ClO2 oxidation and results in the formation of organic chloramines and other chlorinated DBPs.
Article
Engineering, Environmental
Shotaro Torii, Shannon Christa David, Odile Larive, Federica Cariti, Tamar Kohn
Summary: The virucidal efficacies of disinfectants vary depending on the host cell used in the infectivity assay. Different host cells may have different entry routes for enteroviruses, and the choice of host cell can affect the observed inactivation kinetics of the disinfectant. The inactivation rates of echovirus 11 by UV or heat were independent of the host cell, but the inactivation by free chlorine was faster when enumerated on BGMK cells compared to RD and A549 cells. This host cell-dependent inactivation kinetics were also observed for other enteroviruses.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Shotaro Torii, Marie-Helene Corre, Fuminari Miura, Masae Itamochi, Kei Haga, Kazuhiko Katayama, Hiroyuki Katayama, Tamar Kohn
Summary: The study examined the inactivation kinetics of different enterovirus variants by free chlorine and UV irradiation, revealing that the inactivation mechanisms of free chlorine are genotype- and genogroup-dependent, while UV inactivation mainly depends on genomic size and composition. The distribution of inactivation rate constants and the abundance of each genotype are crucial parameters in accurately predicting the overall inactivation of an enterovirus population by free chlorine.
Article
Environmental Sciences
Yin-Hu Wu, Yun-Hong Wang, Song Xue, Zhuo Chen, Li-Wei Luo, Yuan Bai, Xin Tong, Hong-Ying Hu
Summary: Chlorine disinfection was found to significantly increase the risks of antibiotic resistant genes (ARGs) in reverse osmosis (RO) systems. These ARGs were mainly enriched in a few bacterial genus, suggesting potential impacts on water quality safety.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Ming Zhou, Tianling Li, Chao Xing, Yang Liu, Huijun Zhao
Summary: The article presents a gas detection principle based on a colorimetric reaction-controlled membrane process for chlorine gas and introduces a portable colorimetric gaseous chlorine sensing probe (MCSP) for real-time monitoring of chlorine gas concentrations, which enhances accuracy and reliability.
ANALYTICAL CHEMISTRY
(2021)
Review
Environmental Sciences
Tianling Li, Zhengguo Wang, Chenxu Wang, Jiayu Huang, Ming Zhou
Summary: This article provides an overview of recent advances in monitoring chlorine, both in dissolved and gaseous forms, during the COVID-19 pandemic. It highlights the importance of reliable chlorine sensing techniques to ensure efficient disinfection and safety. The article discusses the analytical performance and environmental impacts of different techniques, aiming to guide future sensor development. The information presented in this review is relevant and timely for the water treatment industry, healthcare sector, and environmental organizations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Engineering, Environmental
Nicola Lancioni, Marco Parlapiano, Massimiliano Sgroi, Luca Giorgi, Vieri Fusi, Giovanna Darvini, Luciano Soldini, Bartosz Szel, Anna Laura Eusebi, Francesco Fatone
Summary: Polyethylene (PE) pipes, widely used in drinking water distribution systems worldwide, have been found to have reduced lifetimes when exposed to drinking water with chlorine dioxide (ClO2). Though new PE pipes with improved resistance to ClO2 have been proposed, a standardized test method for evaluating their long-term performances is still missing. This literature review explores the uses of chlorine dioxide and the degradation mechanisms of polyethylene pipes, as well as various accelerated aging methods used to evaluate their performances. It is concluded that pressurized looping tests applying semi-realistic operational conditions may better replicate aging mechanisms observed in service. However, accurately determining the acceleration and evaluation of long-term performance remains challenging, requiring further experimentation to establish correlations between chemical-mechanical characterization parameters and the lifetime of PE pipes in service.
Article
Engineering, Environmental
Yun-Hong Wang, Yin-Hu Wu, Li-Wei Luo, Qi Wang, Xin Tong, Yuan Bai, Xin-Ye Ni, Hao-Bin Wang, Gen-Qiang Chen, Ikuno Nozomu, Zhuo Chen, Hong-Ying Hu
Summary: Chlorine disinfection changes microbial community structure, increases the abundance of functional genes, provides bacteria with higher potential for biofilm formation and EPS secretion, and worsens RO membrane biofouling.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Spectroscopy
Marilia Christian Gomes Morais Nascimento, Maria Carolina Robaina Vieira, Fabio R. P. Rocha, Tiago Almeida Silva, Willian Toito Suarez
Summary: This study developed and validated two procedures based on DPD and OT for the determination of residual free chlorine in water using a flow-based microdevice built with LTCC technology. The analytical signal was monitored by a smartphone camera using RGB values obtained by a free application. The optimized conditions resulted in linear ranges, low limits of detection, and good precision for both DPD and OT methods. Both procedures were successfully applied to water treatment plant samples, demonstrating the innovative, sustainable, and cost-effective nature of the flow-based microdevice coupled to digital-image colorimetry.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Engineering, Environmental
Shanshan Zheng, He Ji, Wenlei Qin, Chunyan Chen, Zihao Wu, Kaiheng Guo, Wenrui Wei, Wanqian Guo, Jingyun Fang
Summary: This study investigated the mechanism of UV photolysis of ClO2- and the production of reactive species. It was found that UV photolysis primarily transforms ClO2- to ClO2 and then to HOCl/OCl-, ClO3-, and Cl-. Both ClO2 and HOCl/OCl- are major reactive chlorine species. Additionally, hydroxyl radical (HO·) and chlorine atom (Cl·) are also formed.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaoting Gao, Xianshi Wang, Youwei Jiang, Dezhen Kong, Xiangrui Pan, Jun Ma, Yanan Liu
Summary: Halogenated benzoquinones (HBQs) are frequently detected in tap water, with their levels correlated with water age. As the water age increases, the levels of bromo-benzoquinones (Br-BQs) decrease while those of chloro-benzoquinones (Cl-BQs) remain relatively stable. 2,3,5,6-Tetrachloro-1,4-benzoquinone (TCBQ) and 2,6-dibromo-1,4benzoquinone (DBBQ) are the most abundant Cl-BQ and Br-BQ. Chlorination converts highly toxic TCBQ and DBBQ to less-toxic chlorinated/brominated aliphatic disinfection by-products (DBPs), reducing the overall toxicity of water bodies.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Chemical
Chaoqun Tan, Kechun Sun, Xinxin Cui, Tianyu Sheng, Tianhu Xu, Haiying Gao
Summary: In this study, the combination of FAC and O3 significantly improved the removal of pollutants, with O3, ·OH, and RCS playing important roles in removing target contaminants. Compared with O3 alone system, the average mineralization of pollutant in O3/FAC system increased from 20.6% to 34.0%, demonstrating the effectiveness of this new method in removing contaminants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Environmental Sciences
Xue Li, Zhijing Zhao, Zheng Qu, Xinyu Li, Zengli Zhang, Xiaojun Liang, Jingsi Chen, Jiafu Li
Summary: Disinfection by-products (DBPs) are common organic contaminants in tap water and have raised wide concern due to their toxic, cytotoxic, and carcinogenic properties. Traditional quenching agents like ascorbic acid and sodium thiosulfate can cause varying degrees of DBPs degradation, while emerging quenchers like NAC and GSH show promise as ideal chlorine quenchers for organic DBPs. Sodium sulfite has been proven to be the ideal quencher for inorganic DBPs. This comprehensive review provides insights into the effects of traditional and emerging chlorine quenchers on different types of DBPs.
Article
Environmental Sciences
Taise Ferreira Vargas, Celia Ceolin Baia, Tatiana Lemos da Silva Machado, Caetano Chang Dorea, Wanderley Rodrigues Bastos
Summary: This study evaluated the decay kinetics of free chlorine in alternative individual water supply solutions used in Porto Velho in the Brazilian Amazon region. The type of well and initial chlorine concentration significantly influenced the decay speed of free chlorine, with water samples from tubular wells having lower chlorine demand levels attributed to better water quality. Simulation of residual chlorine decay in different water sources is an important tool for supporting safe disinfection processes.
Review
Materials Science, Multidisciplinary
Meng Li, Zhenzhen Wu, Yuhui Tian, Feng Pan, Tim Gould, Shanqing Zhang
Summary: This review highlights the recent achievements of emerging 2D electrochromic materials, such as covalent organic frameworks, coordination nanosheets, and transition metal carbides/nitrides/carbonitrides (MXenes). The structures, electrochromic performances, their structure-performance relationship, and future challenges of these materials have been systematically explored. This review opens up new avenues for the practical electrochromic applications of nanoarchitectonic 2D materials.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Zhi Yang, Meng Li, Sibo Chen, Siyuan Yang, Feng Peng, Jihai Liao, Yueping Fang, Shanqing Zhang, Shengsen Zhang
Summary: This research focuses on the synthesis of carbon-encapsulated Mo/Mo2C heterostructure nanoparticles as cocatalysts for photocatalytic hydrogen production. The cocatalysts are immobilized onto organic polymer semiconductor g-C3N4 and inorganic semiconductor CdS, forming Schottky junctions that suppress the recombination of photoinduced electron-hole pairs. These catalysts exhibit high hydrogen production rates, surpassing the benchmark Pt-containing catalyst.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jingjie Liu, Mengting Zheng, Jiantao Li, Yifei Yuan, Chenghang Li, Shanqing Zhang, Lin Yang, Zhengyu Bai, Jun Lu
Summary: This study introduces oxygen defects into NiCo2O4 nanorods through an electrochemical lithiation strategy and successfully controls the concentration of defects and catalytic activity. The defective CoO@NiO-based catalyst exhibits exceptional OER activity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhong Su, Shunning Li, Lu Ma, Tongchao Liu, Meng Li, Tianpin Wu, Qinghua Zhang, Cheng Dong, Chao Lai, Lin Gu, Jun Lu, Feng Pan, Shanqing Zhang
Summary: The defect engineering in lithium-ion battery materials is explored to enhance electrical conductivity and introduce active sites for electrochemical reactions. A versatile quenching strategy is demonstrated in lithium titanate to induce defects, which increases oxygen vacancies and promotes cation redistribution. The resulting anode exhibits improved capacity and cycling stability compared to conventional defective electrodes, suggesting the potential of harnessing intrinsic defects for higher energy density in rechargeable batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Meiling Wang, Ying Yao, Yuhui Tian, Yifei Yuan, Liguang Wang, Feiyang Yang, Jingjie Ren, Xinrong Hu, Feng Wu, Shanqing Zhang, Junxiu Wu, Jun Lu
Summary: This study reports a single-atom catalyst (SAC) for electrochemical CO2 utilization in both aqueous and aprotic electrolytes, exhibiting high electrocatalytic performance with high CO faradaic efficiency, high CO current density, and low overpotential. The SAC also shows excellent performance as a cathode catalyst for aprotic batteries, delivering low overpotential and excellent cyclic stability. This work provides a new avenue for designing and fabricating SACs for various electrochemical CO2 utilization systems.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Jiawei Wu, Mengting Zheng, Tiefeng Liu, Yao Wang, Yujing Liu, Jianwei Nai, Liang Zhang, Shanqing Zhang, Xinyong Tao
Summary: This review summarizes the steps and strategies for recycling spent lithium-ion batteries (LIBs) and discusses the impact of degradation mechanisms of electrode materials on the selection of regeneration strategies.
ENERGY STORAGE MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Shengbo Zhang, Miaomiao Han, Tongfei Shi, Haimin Zhang, Yue Lin, Xusheng Zheng, Li Rong Zheng, Hongjian Zhou, Chun Chen, Yunxia Zhang, Guozhong Wang, Huajie Yin, Huijun Zhao
Summary: This research utilizes bacterial cellulose with rich oxygen functional groups to anchor iron and cobalt, realizing high density, atomically dispersed bimetallic active sites. The designed catalyst achieves remarkable ammonia yield rate and Faradaic efficiency.
NATURE SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
J. Y. Wang, L. P. Sun, Q. Li, L. H. Huo, H. Zhao
Summary: Replacing the sluggish oxygen evolution reaction with methanol oxidation reaction is an effective strategy to improve the efficiency of hydrogen evolution reaction while obtaining valuable by-products.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
M. Adeel Zafar, Yang Liu, Francisco C. Robles Hernandez, Oomman K. Varghese, Mohan Jacob
Summary: Atmospheric pressure microwave plasma is used for the synthesis of graphene nanosheets using a sustainable precursor called tea tree. The process is performed in a single step at a low microwave power of 200 W. The graphene synthesized shows excellent sensing capability for detecting diuron herbicide, with a linear range of 20 μm to 1 mm and a limit of detection of 5 μm.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zhihao Yu, Xiehe Huang, Mengting Zheng, Shan-Qing Zhang, Ying Yang, Jun Lu
Summary: In this study, a self-assembled macrocyclic Cu(II) complex was designed as an effective catalyst for high-energy-density Li-S batteries. By improving the efficiency of the liquid-solid sulfur redox reaction, the capacity, cycling stability, and energy decay rate of the batteries were enhanced. This research provides important insights for the design of homogenous catalysts and the promotion of high-energy-density Li-S batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ming Zhou, Tianling Li, Kaicai Fan, Yajie Shu, Porun Liu, Huijun Zhao
Summary: The ability to monitor ammonium/ammonia levels in coastal waters in real-time and continuously is crucial for assessing the impact of eutrophication on ecosystems. In this study, a membrane-based conductometric ammonia sensing probe (CASP) was used to monitor ammonia levels in coastal waters. The use of a boric acid/glycerol receiving phase helped overcome the analytical errors caused by high salinity. The findings showed that CASP can accurately monitor the dynamic changes in ammonia concentration in coastal waters over an extended period of time.
Review
Chemistry, Multidisciplinary
Yajie Shu, Mengqing Hu, Ming Zhou, Huajie Yin, Porun Liu, Haimin Zhang, Huijun Zhao
Summary: The global water crisis is a pressing challenge, and cost-effective and environmentally friendly water remediation technologies are crucial. Electrochemical advanced oxidation processes (EAOPs) using reactive species for oxidation have shown promise for on-site treatment of water with organic contaminants. Recent progress in nanotechnology has led to research on efficient and durable electrocatalysts/electrodes for EAOPs. This review provides an overview of wastewater treatment using electrochemical technologies, particularly EAOPs, and evaluates the state-of-the-art electrocatalysts and their impacts on efficiency, stability, and selectivity.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Hui Xu, Shengbo Zhang, Xinyuan Zhang, Min Xu, Miaomiao Han, Li Rong Zheng, Yunxia Zhang, Guozhong Wang, Haimin Zhang, Huijun Zhao
Summary: The integration of oxygen-coordinated Fe single atoms and atom clusters using a tandem impregnation-pyrolysis-etching strategy shows superior electrocatalytic activity and selectivity towards two-electron oxygen reduction reaction (2e(-) ORR) to hydrogen peroxide (H2O2). The FeSAs/ACs-BCC electrocatalyst exhibits high-efficiency H2O2 production and coupling with electro-Fenton process for ethylene glycol valorization.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Ecology
Taicheng An, Yiwei Cai, Guiying Li, Shaoting Li, Po Keung Wong, Jianhua Guo, Huijun Zhao
Summary: Due to the widespread use of antibiotics, aquaculture farms have become a significant source of antibiotic resistance genes. This study investigated the prevalence and transmission risk of colistin and multidrug resistance in aquaculture water samples from southern China. The results showed that colistin resistance genes and antibiotic resistance genes were present in all samples, and most types of antibiotic resistance were transmissible between bacterial communities. The study also identified diverse multidrug-resistant bacteria, including a strain with high-level colistin resistance.
ISME COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jiapeng Ji, Junxian Liu, Lei Shi, Siqi Guo, Ningyan Cheng, Porun Liu, Yuantong Gu, Huajie Yin, Haimin Zhang, Huijun Zhao
Summary: The development of dimensionally stable anodes (DSAs) has made the chlorine evolution reaction (CER) the most important industrial anode reaction since the 1960s. However, the preparation of DSA relies on the use of expensive and scarce precious metals. In this study, a cationic defect adsorption-oxidation anchoring strategy is employed to immobilize oxidized sub-nano ruthenium clusters on a 2D low-crystallinity titanium oxide (2D TiOx) substrate, leading to enhanced activity, selectivity, and stability for CER.
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)
