Article
Chemistry, Physical
Shurui Fan, Zihao Yao, Wei Cheng, Xian Zhou, Yao Xu, Xuetao Qin, Siyu Yao, Xi Liu, Jianguo Wang, Xiaonian Li, Lili Lin
Summary: In this paper, a TiO2-x overlayer formed over Ru NPs (Ru@TiO2-x/TiO2) was reported as a chemoselective, durable, and sulfur-resistant catalyst for the partial hydrogenation of quinoline and other N-heteroarenes under reduction conditions. It was found that the oxygen vacancies of the Ru@TiO2-x overlayer served as the active sites for H-2 activation, and the synergy between the TiO2-O-v (TiO2-x) active sites and subsurface Ru particles effectively reduced the barriers of H-2 dissociation and H addition steps.
Article
Chemistry, Physical
Jagabandhu Patra, Shu-Chi Wu, Ing-Chi Leu, Chun-Chen Yang, Rajendra S. Dhaka, Shigeto Okada, Hsiu-Liang Yeh, Chieh-Ming Hsieh, Bor Kae Chang, Jeng-Kuei Chang
Summary: Defective transition metal oxides prepared via a hydrogenation treatment have shown improved electrochemical properties for battery and supercapacitor applications. The hydrogenated TiO2 phases, especially H-TiO2-A, exhibit enhanced anode performance, attributed to the introduction of oxygen vacancies and disordered structure providing more active sites for reactions. The superior performance of the H-TiO2-A electrode is supported by density functional calculations.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Zhun Zhou, Jinjun Li, Zhixiong You
Summary: An anatase-TiO2 catalyst with abundant oxygen vacancies and hydroxyl was designed and synthesized through the introduction of NaBH4 and loading Ru on its surface. This catalyst exhibited high activity in the CO2 hydrogenation to CH4 reaction.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Guang Feng, Mengyun Hu, Shuai Yuan, Junyi Nan, Heping Zeng
Summary: This study successfully prepared hydrogenated amorphous TiO2-x with high visible-light photocatalytic activity using a unique liquid plasma hydrogenation strategy. Through density functional theory analysis, it was found that the narrower the bandgap of HA-TiO2-x, the higher the photocatalytic efficiency exhibited. Additionally, the HA-TiO2-x showed excellent visible-light photodegradation in various pollutants and high wastewater purification performance.
Article
Chemistry, Physical
Francesco Cannizzaro, Emiel J. M. Hensen, Ivo A. W. Filot
Summary: This study investigates the promoting role of Ni in In2O3-catalyzed CO2 hydrogenation using density functional theory and microkinetic modeling. It is found that a supported cluster of eight Ni atoms leads to high methanol selectivity, while single Ni atoms either doped in or adsorbed on the In2O3 surface mainly catalyze CO formation. This research provides important theoretical insights for the design and improvement of CO2 hydrogenation catalysts.
Article
Chemistry, Physical
Shaoyu Yuan, Yashang Duan, Chenyang Yu, Zhangyi Xiong, Yaguang Li, Huan Wang, Yufan Zhang, Yongjun Gao
Summary: An active catalyst Pd/TiO2(M) was constructed through a ball-milling process for phenol hydrogenation to cyclohexanone. This mechanical process avoids thermal reduction in hydrogen atmosphere and creates oxygen vacancies on TiO2, improving the catalytic performance of palladium. The Pd/TiO2(M) exhibits outstanding catalytic activity and selectivity for phenol hydrogenation to cyclohexanone due to the surface defective structures of Ti3+-Ov stabilizing Pd nanoclusters and promoting the formation of electron-rich Pd.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Applied
Jing Wang, Kaihang Sun, Xinyu Jia, Chang-jun Liu
Summary: Highly dispersed Rh/In2O3 catalyst prepared by deposition-precipitation method shows excellent activity and selectivity for CO2 hydrogenation to methanol, promoting the reaction even at lower temperatures.
Article
Energy & Fuels
Jiahong Chen, Wenlong Jia, Xin Yu, Yong Sun, Jiaren Zhang, Shuliang Yang, Xing Tang, Lincai Peng, Xianhai Zeng, Lu Lin
Summary: In this study, a highly stable chromium-free catalyst Co3AlOx was prepared for the synthesis of furfuryl alcohol. The catalyst exhibited excellent catalytic activity and stability, enabling efficient hydrogenation of furfural to furfuryl alcohol.
Article
Chemistry, Physical
Waleed Ahmad, Eunseuk Park, Heehyeon Lee, Jin Young Kim, Byoung Chan Kim, Jongsoo Jurng, Youngtak Oh
Summary: Synthesizing defective anatase TiO2 through chemical vapor condensation and impregnating with Pt resulted in a Pt/CVC-TiO2 catalyst with high efficiency in removing HCHO at room temperature, demonstrating good stability over time. The study highlighted the synergistic relationship between oxygen vacancies in the TiO2 support and the resulting HCHO oxidation functionality.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Peng Zhou, Si-Xuan Guo, Linbo Li, Tadaharu Ueda, Yoshinori Nishiwaki, Liang Huang, Zehui Zhang, Jie Zhang
Summary: In this study, highly efficient carbon supported Ni-MoO2 heterostructured catalysts were reported for the electrochemical hydrogenation (ECH) of phenol in 0.10 M aqueous sulfuric acid (pH 0.7) at 60 degrees C. Catalysts with high and low densities of oxygen vacancy (O-v) sites achieved the highest yields of cyclohexanol and cyclohexanone, 95% and 86%, respectively, with faradaic efficiencies of approximately 50%. The enhanced phenol adsorption strength attributed to the O-v density was found to be responsible for the superior catalytic efficiency. This work provides a promising avenue for the rational design of advanced electrocatalysts for the upgrading of phenolic compounds.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Zeyu Zhou, Lu Chen, Luyao Wang, Yun Liu, Peihong Cheng, Hongru Peng, Jun Cai, Qin Zhou, Yifan Wang, Nan Yang, Beibei Wang, Xue-Qing Gong, Fan Yang, Zhi Liu
Summary: The roles of oxygenvacancies (O-v) and hydride (Ce-H) species in ceria catalysts for selective hydrogenation of alkynes have been investigated. The presence of O-v sites is necessary for the formation of Ce-H species and the dissociative adsorption of propyne. The coexistence of O-v sites and Ce-H species with sufficient concentration is crucial for optimal propene production and selectivity.
Article
Nanoscience & Nanotechnology
Yu Sun, Bing Du, You Wang, Mingkai Zhang, Sai Zhang
Summary: Hydrogen spillover allows the design of dual-active site catalysts for selective hydrogenation. This study demonstrates selective hydrogenation dependent on hydrogen spillover on WO3-supported Pd catalysts. The WO3 supports with a hexagonal phase and suitable oxygen defect concentration enhance the capacity of hydrogen spillover, significantly improving the catalytic activity. This work contributes to the development of cost-effective nanocatalysts with low Pd loading for highly active and selective hydrogenation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Muhammad A. Abbas, Geun Jun Lee, Jin Ho Bang
Summary: Nickel-cadmium and nickel-metal hydride batteries, as well as lithium-ion intercalation materials, exhibit voltage deviations known as the memory effect. The extent of the memory effect in TiO2 is influenced by particle size, Li-ion mobility, and the type of vacancies.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Wenhang Wang, Ruosong He, Yang Wang, Meng Li, Jianxin Liu, Jiaming Liang, Shuhei Yasuda, Qiang Liu, Mingbo Wu, Noritatsu Tsubaki
Summary: In this study, the oxygen vacancy density in reducible Cr2O3 was increased by sequential carbonization and oxidation treatments, leading to high methanol selectivity of 98.1% in the direct hydrogenation of CO2 into aromatics at high temperature. Furthermore, by combining with acidic zeolite H-ZSM-5, the multifunctional catalyst achieved high conversion and selectivity of 25.4% and 80.1% (without CO) in the conversion of CO2 into aromatics. The acid site property in H-ZSM-5, especially the Al species located at the intersection of straight and sinusoidal channels, played a crucial role in enhancing aromatics selectivity, which could be controlled by varying the hydrothermal synthesis conditions. This work provides a synergistic strategy for improving the synthesis performance of aromatics from CO2 hydrogenation.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
A. Shan, Y. Lu, L. Cheng, Z. Hou, D. Xili, Y. Li, J. Liu, H. Ma, J. Yang
Summary: Due to high electronegativity, dissolved O2 molecules can strongly chemisorb onto oxygen-deficient nano-TiO2, altering the photocatalytic degradation process. However, there has been a lack of sufficient investigation on the role of chemisorbed O2 on oxygen-deficient nano-TiO2. In this study, we adsorbed dissolved O2 onto oxygen-deficient nano-TiO2 by stirring for a long time, and found that it significantly enhances hydrogen bonding and increases the co-adsorption of H2O molecules and -OH groups. The presence of chemisorbed O2 promotes the separation of electron-hole pairs and enhances the direct oxidation of photogenerated holes, suggesting its importance in long continuous reactions.
MATERIALS TODAY SUSTAINABILITY
(2023)
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, Multidisciplinary
Ying Shang, Sheng Zhang, Hui-Qi Gan, Kai-Cheng Yan, Fugui Xu, Yiyong Mai, Daijie Chen, Xi-Le Hu, Lei Zou, Tony D. James, Xiao-Peng He
Summary: We developed a simple method to construct a supramolecular glycomaterial for targeted delivery of antibiotics to P. aeruginosa in a photothermally-controlled manner. The galactose-pyrene conjugate (Gal-pyr) self-assembled with graphene nanoribbon-based nanowires via pi-pi stacking to produce a supramolecular glycomaterial, which exhibited significantly enhanced binding avidity toward a galactose-selective lectin compared to Gal-pyr alone. The as-prepared glycomaterial eradicated P. aeruginosa-derived biofilms under near-infrared light irradiation by accelerating antibiotic release due to the strong photothermal effect of the nanowires.
CHEMICAL COMMUNICATIONS
(2023)
Article
Polymer Science
Chen Zhang, Ruiyun Cai, Chuanbang Xu, Hongwei Xia, Yun Zhu, Shengmiao Zhang
Summary: This study presents an effective flame retardant strategy for open-cell foam by modifying the void surface with a highly efficient flame retardant polymer. The modified foam showed improved thermal stability and mechanical properties, as well as reduced heat release rate and increased oxygen index.
JOURNAL OF APPLIED POLYMER SCIENCE
(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
Chemistry, Physical
Meng Li, Hao Chen, Can Guo, Shangshu Qian, Hongpeng Li, Zhenzhen Wu, Chao Xing, Pan Xue, Shanqing Zhang
Summary: To address the issues of lithium-sulfur batteries, a dual interfacial engineering strategy is proposed. For the cathode, iminated polyaniline (iPANI) is used to achieve energetic and morphological engineering. For the anode, the iPANI@rGO-CNTs composite facilitates uniform deposition of lithium-ions, preventing dendrite growth. With the synergic effects of iPANI@rGO-CNTs nanoreactors, the prepared LSBs exhibit excellent rate capability and cycling life, potentially leading to commercialization.
ADVANCED ENERGY MATERIALS
(2023)
Review
Nanoscience & Nanotechnology
Yuhui Tian, Daijie Deng, Li Xu, Meng Li, Hao Chen, Zhenzhen Wu, Shanqing Zhang
Summary: A sustainable and cost-effective production of H2O2 via electrochemical oxygen reduction reaction is highly desired for various applications. Significant progress has been made in catalyst design and innovative cell designs for electrocatalytic production of H2O2. This review summarizes recent advances, including mechanistic explorations, theoretical computations, experimental evaluations, and perspectives on addressing remaining challenges.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Mengting Zheng, Juncheng Wang, Shangshu Qian, Qiang Sun, Hao Chen, Liang Zhang, Zhenzhen Wu, Shanqing Zhang, Tiefeng Liu
Summary: A one-step water-based recycling process is proposed to recycle and regenerate graphite anode materials from spent lithium-ion batteries (LIBs). The regenerated graphite with expanded interlayer spacing and oxygen-containing groups exhibits excellent performance in graphite dual-ion batteries (GDIBs). This waste-to-resource strategy provides a low-cost and sustainable recycling pathway for spent LIBs and enables the sustainable manufacturing of GDIBs.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Shangshu Qian, Hao Chen, Mengting Zheng, Yuxuan Zhu, Chao Xing, Yuhui Tian, Pan Yang, Zhenzhen Wu, Shanqing Zhang
Summary: Lithium metal anodes have a higher specific capacity than commercial graphite anodes, making them attractive for rechargeable batteries. However, the growth of lithium dendrites poses safety concerns, hindering their practical application. This review summarizes the strategies for protecting lithium metal anodes by preventing dendrite growth, regulating lithium deposition behaviors, and healing existing dendrites. Integrating different strategies can enhance their advantages, narrowing the gap between experimental research and commercial application of lithium metal batteries.
ENERGY STORAGE MATERIALS
(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
Engineering, Chemical
Chao Xing, Lingfeng Liu, Xun Guo, Mengchen Zhang, Ming Zhou, Shanqing Zhang, Changyu Liu
Summary: This study presents a novel approach by combining positively charged chitosan (CTS) and negatively charged MXene to form CTS-MXene/polyacrylonitrile (PAN) membranes, overcoming the swelling problem of MXene membranes and improving their mechanical strength and service life. The CTS-MXene/PAN membranes have a fixed layer spacing, high separation efficiency, and remarkable filtration performance, making them a cost-effective option for water purification. This study not only provides a simple and reproducible strategy for preparing MXene-based membranes, but also offers potential for their industrialization.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Chao Xing, Yuting Zhang, Rong Huang, Suhong Li, Jing He, Rong Fu, Chao Lai, Changyu Liu, Lingdi Shen, Shanqing Zhang
Summary: In this study, MXene-based nanofiltration membranes were successfully modified to overcome the severe swelling issue in water, resulting in composite PEI-MXene/PAN membranes with excellent mechanical strength and stability. The modified membranes exhibited outstanding size sieving ability after tuning the interlayer spacing of the MXene layers, with high flux and remarkable rejection rates.
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)
