Article
Multidisciplinary Sciences
Yong Kun Jo, Seong-Yong Jeong, Young Kook Moon, Young-Moo Jo, Ji-Wook Yoon, Jong-Heun Lee
Summary: The research team developed a chemiresistive sensor that can highly selectively detect ppb-level formaldehyde at room temperature through a unique coating membrane, achieving efficient detection of this harmful gas. They successfully fabricated a flexible sensor and demonstrated the potential application of this technology in indoor air monitoring.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Weiwei Zhang, Xiaomin Zhu, Zhanghua Chen, Vladimir I. Belotelov, Yujun Song
Summary: The surface-enhanced Raman scattering (SERS) technique based on surface plasmon resonance has gained significant attention for its superior sensitivity in detecting trace levels of organic or biological molecules. However, existing research often focuses on using complex and expensive micro/nano fabrication processes to create artificial substrates for SERS, leading to high costs for masks. This paper proposes a biomimetic SERS substrate composed of silver-coated nanopillar arrays on a cicada wing, serving as both the substrate and the mask, to overcome these challenges.
Article
Chemistry, Analytical
Lung-Ming Fu, Jia-Hong Hsu, Ming-Kuei Shih, Chang-Wei Hsieh, Wei-Jhong Ju, Yu-Wei Chen, Bao-Hong Lee, Chih-Yao Hou
Summary: This study provides a stable and excellent AgNP synthesis technique which can improve various applications involving AgNP-mediated reactions and offers a potential alternative to using expensive detection equipment for mercury detection in food.
Article
Chemistry, Physical
Amish Kumar Gautam, Neeraj Khare
Summary: In this study, a flexible Ag2Te-nylon composite film with high Seebeck coefficient and low thermal conductivity was successfully prepared using the vacuum filtration method. The film exhibited enhanced power factor and figure of merit, and retained good electrical conductivity after bending. It showed higher thermoelectric performance compared to previously reported Ag2Te-based flexible thermoelectric generators, demonstrating great potential for converting low-grade heat into useful electrical energy.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Applied
Song-Song Zhao, Zhi-Hao He, Xin Liu, Yu Shen, Xue-Cai Tan, Qi Wang, Jun Yan, Wei-Wei Zhu
Summary: A dialdehyde starch-encapsulated silver nanoparticles composite with controlled-release hotspots was developed for sensitive detection of pesticide residues on apple surfaces.
Article
Nanoscience & Nanotechnology
Tong Wu, Hui Zheng, Yichuan Kou, Xinyue Su, Naveen Reddy Kadasala, Ming Gao, Lei Chen, Donglai Han, Yang Liu, Jinghai Yang
Summary: In this work, ternary Au@Cu2O-Ag NCs were successfully designed and prepared, and a possible SERS enhancement mechanism was proposed based on the investigation of SERS activity and electromagnetic field simulations. These NCs achieved highly sensitive SERS detection of MG and catalyzed its degradation driven by visible light.
MICROSYSTEMS & NANOENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Kailian Dong, Hai Zhou, Wenlong Shao, Zheng Gao, Fang Yao, Meng Xiao, Jiashuai Li, Yongjie Liu, Shuxin Wang, Shun Zhou, Hongsen Cui, Minchao Qin, Xinhui Lu, Chen Tao, Weijun Ke, Guojia Fang
Summary: In this paper, a micronanometerscale X-ray detector based on all-inorganic lead-free CsAg2I3 single crystal microbelts is designed to address the issues of toxicity and high thickness in lead halide perovskite single crystals. The optimized CAI photodetectors exhibit good ultraviolet photoresponse characteristics, excellent X-ray detection performance, and fast response speed. Furthermore, they also demonstrate excellent applicability for X-ray imaging. Flexible X-ray detectors fabricated using thin CAI single-crystal microbelts demonstrate good flexibility under different bending radii and bending cycles.
Article
Spectroscopy
Alia Colnita, Daniel Marconi, Nicoleta Elena Dina, Ioana Brezestean, Diana Bogdan, Ioan Turcu
Summary: In this study, highly sensitive substrates with potential as Surface-enhanced Raman scattering (SERS) detection platforms were developed using nanoimprint lithography nanotrenches in plastic and nanostructured silver (Ag) films. The contribution of the periodic Ag nanopattern in the SERS signal was found to be significant, with an enhancement factor (EF) of up to 107 for the SERS detection platform with a 25 nm Ag layer on top of the periodic nanotrenches. The substrate showed a considerably lower limit of detection (LOD) for SERS and better signal uniformity and reproducibility.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Xiwen Li, Zuan Yang, Peiran Meng, Shipeng Jiang, Mingyang Sun, Xiaoyu Zhang, Yue Sun
Summary: An ultrasensitive electrochemical sensor for phospholipase C (PLC) was developed using metal-free visible-light induced atom transfer radical polymerization (MVL ATRP) and Ag nanoparticles (AgNPs) for signal amplification. The sensor showed a linear response range of 1-106 mU/L for PLC and a detection limit of 0.1032 mU/L. It successfully detected PLC in non-tumor cells (MCF-10A) and tumor cells (MCF-7, MDA-MB-231) with comparable results to a commercial ELISA kit.
MICROCHEMICAL JOURNAL
(2023)
Article
Environmental Sciences
Nazar Riswana Barveen, Tzyy-Jiann Wang, Yu-Hsu Chang
Summary: A novel surface-enhanced Raman scattering (SERS) substrate was proposed for ultrasensitive detection of antibiotics by integrating silver nanoparticles and silver vanadate nanorods, showing excellent detection ability and capability to monitor real samples.
Article
Chemistry, Physical
Sadia Shakeel, Farah Naz Talpur, Nadia Sirajuddin, Nadia Anwar, Muhammad Aamir Iqbal, Adnan Ibrahim, Hassan Imran Afridi, Ahsanullah A. Unar, Awais Khalid, Inas Ahmed, Wen-Cheng Lai, Muhammad Sohail Bashir
Summary: An environmentally safe and efficient technique using microwave-assisted synthesis of silver nanoparticles (AgNPs) was developed. Xanthan gum (XG) was used as both a reducing and capping agent for the uniform synthesis of AgNPs. The synthesized XG-AgNPs were characterized using UV-Vis spectroscopy, atomic force microscopy, and Fourier transform infrared spectroscopy. These XG-AgNPs were successfully used as sensors for the voltammetric evaluation of mercury ions (Hg2+), showing excellent detection limits and linear response range. The proposed method also demonstrated good selectivity for Hg2+ detection in the presence of other metal ions.
Article
Optics
Chaoyang Gong, Xi Yang, Shui-Jing Tang, Qian-Qian Zhang, Yanqiong Wang, Yi-Ling Liu, Yu-Cheng Chen, Gang-Ding Peng, Xudong Fan, Yun-Feng Xiao, Yun-Jiang Rao, Yuan Gong
Summary: This study reports the development of submonolayer lasers on optical fibers as ultrasensitive and disposable biosensors for biomarker detection, which offers great potential in early diagnosis.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Boda Zheng, Qingsheng Zhu, Yang Zhao
Summary: A facile method was reported to produce high-yield pure silver nanowires (AgNWs) with uniform dispersion, leading to excellent optoelectrical performance on flexible substrates. A transparent film heater based on the AgNW networks was constructed, demonstrating rapid response, relatively high temperature, low production costs, and fast production time, suggesting potential applications in the electronic industry.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Aoqiong Zeng, Ruijin Yang, Yanjun Tong, Wei Zhao
Summary: This study explored a direct biosynthetic method using microbial metabolism to prepare D-Saccharic acid potassium salt (SA)-grafted bacterial cellulose (SABC). Silver nanoparticles (AgNPs) with a diameter of approximately 25.2 nm were synthesized on SABC nanofiber surfaces through thermal reduction. SABC/AgNPs films exhibited high-efficiency bacteria-killing performance against Escherichia coli and Staphylococcus aureus. This work proposed a new method for preparing cellulose films with functional groups and demonstrated the potential of antimicrobial films containing AgNPs in wound healing treatment.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Analytical
Lin Gao, Changjian Liu, Yujie Peng, Jinyi Deng, Sihui Hou, Yuhua Cheng, Wei Huang, Junsheng Yu
Summary: This study presents a scalable and facile manufacturing method for constructing high-performance flexible gas sensors based on transistor. By assembling multilayer porous organic semiconductor films using breath figure method and layer-by-layer transferring, a three-dimensional porous structure is formed, showing good gas sensing properties and mechanical robustness, which can be used for next-generation wearable electronics.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Si Yin Tee, Xian Yi Tan, Xizu Wang, Coryl Jing Jun Lee, Khin Yin Win, Xi Ping Ni, Siew Lang Teo, Debbie Hwee Leng Seng, Yuki Tanaka, Ming-Yong Han
Summary: In this study, binary Ag2Se, composite Ag0:Ag2Se, and ternary Cu+:Ag2Se were successfully synthesized through an ambient aqueous-solution-based approach. The controllability over phases and compositions and the feasibility for large-scale production were demonstrated. Cu+ doping significantly improved the thermoelectric properties of n-type Ag2Se, achieving a ZT value of 0.9-1.2 over a temperature range of 300-393 K, which is the highest among wet chemistry methods reported.
INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Zilong Guo, Guo Yu, Zhiguo Zhang, Yandong Han, Guijian Guan, Wensheng Yang, Ming-Yong Han
Summary: The collective oscillation of free electrons at the nanoscale surface of gold nanostructures is modulated by various factors, including size, shape, phase, composition, assembly, and surroundings. These modulation techniques lead to changes in optical properties, metal-field-enhanced optical signals, luminescence spectral shaping, chiroptical response, and photogenerated hot carriers. The rich optical properties of gold nanostructures have enabled a wide range of applications in nanoscience and nanotechnology, including full-color displays, solar energy harvesting, photochemical reactions, optical sensing, and biomedical imaging.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Jie Cao, Yingying Liu, Shiquan Xiong, Qiao Cao, Shihao Xu, Changlong Jiang
Summary: A new probe solution and test paper have been developed for visual detection of ammonium, which can perform colorimetric change for high-concentration ammonium and ratiometric fluorescence response for low-concentration ammonium. It has great application potential for on-site detection of ammonium in environmental samples.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Shihao Xu, Lingfei Li, Dan Lin, Liang Yang, Zhenyang Wang, Changlong Jiang
Summary: A portable sensing platform utilizing a composite fluorescent nanoprobe constructed by cerium ions (Ce3 +) coordination functionalized CdTe quantum dots (QDs) was developed for the visual and quantitative detection of levofloxacin (LVFX) residues. The fluorescent probe exhibited a distinct color variation from red to green, which exhibited a good linear relationship with LVFX residues concentration. The smartphone platform with Color Analyzer App enabled the quantified detection of LVFX in water, milk, and raw pork.
CHINESE CHEMICAL LETTERS
(2023)
Article
Engineering, Environmental
Lingfei Li, Liang Yang, Dan Lin, Shihao Xu, Chunsheng Mei, Shaoming Yu, Changlong Jiang
Summary: A fluorescent nanoprobe was designed for qualitative and quantitative determination of amoxicillin (AMO) using nontoxic red carbon dots (RCDs) and blue carbon dots (BCDs). The portable device, based on 3D printing technology and a smartphone platform, offers rapid and accurate detection of AMO with a short detection time and sensitive detection limit. This method enables real-time assessment for food safety and on-site detection of trace substances for timely health checks.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Qianru Zhang, Zhong Zhang, Shihao Xu, Anqi Liu, Liangguo Da, Dan Lin, Changlong Jiang
Summary: High sensitivity and on-site screening assays for carbendazim have been urgently required to protect the ecosystem and prevent disease. In this study, a simple, sensitive, and reliable sensing system based on photoinduced electron transfer was established using ultrathin graphitic carbon nitride nanosheets and rhodamine B. The system demonstrated a favorable linear range from 20 to 180 nM and a low detection limit of 5.89 nM, with a portable smartphone sensing platform successfully detecting carbendazim in real samples, showing potential applications for carbendazim monitoring.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Bin Hu, Xiaohui Kang, Shihao Xu, Jiawei Zhu, Liang Yang, Changlong Jiang
Summary: Visual wearable devices can monitor biomarkers in body fluids intuitively and accurately, providing valuable reference for medical diagnosis. By embedding an upconversion optical probe in a 3D porous polyacrylamide hydrogel, a wearable sensing patch with multiplex chroma response to urea has been designed, which overcomes the interference factors and improves the accuracy of visual sensing. A portable sensing platform combined with a smartphone enables in situ rapid quantitative analysis of urea, highlighting the practicality of the design. This sensing patch offers a convenient and accurate strategy for biomarker detection and has the potential to be used as a point-of-care device for disease early warning and clinical diagnosis.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Lingling Qin, Jie Cao, Dan Lin, Shihao Xu, Yucheng Li, Changlong Jiang
Summary: Utilization of organic reactions can be used to design organic fluorescent probes for a wide range of applications. In this study, a Strecker-like reaction was employed to prepare a fluorescent probe for enzyme-free and visual monitoring of carbamates. By utilizing the full-spectrum detection capability, the developed probe can accurately quantify the residue levels of carbamate pesticides in food and water samples. Furthermore, a novel enzyme-free ratiometric fluorescence detection platform combined with a smartphone was also developed for convenient and rapid analysis. The research not only provides an effective method for trace hazardous substances detection, but also demonstrates the importance of utilizing organic reactions in expanding the probe libraries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Spectroscopy
Zhengdong Zhu, Xiaoyi Shi, Yating Feng, Meng He, Cheng Ye, Hongyang Zhou, Maofeng Zhang, Wei Zhang, Jianhua Li, Changlong Jiang
Summary: A biomimetic synthesis method was reported for the fabrication of a reliable surface-enhanced Raman scattering (SERS) substrate capable of in-situ detection of analytes adsorbed on nonplanar surfaces. The use of a lotus leaf mastoid structure replica on a flexible and transparent PDMS film, combined with plasmonic AgNPs, resulted in a powerful chemical sensor with high sensitivity and multiplex detecting capability. The sensor showed high signal repeatability due to the periodic mastoid structure array and excellent durability for identifying trace analytes on curved surfaces.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Zhong Zhang, Qianru Zhang, Lingfei Li, Dan Lin, Changlong Jiang
Summary: To achieve accurate in situ analysis, a portable device integrated with a smartphone sensing platform was designed for rapid, visual quantitative determination of carbaryl via colorimetric and fluorescent signals.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Lingling Qin, Yujie Guo, Lingfei Li, Dan Lin, Yucheng Li, Shihao Xu, Changlong Jiang
Summary: This study developed a ratiometric fluorescence probe for the highly selective quantitative detection of methylparathion residues. The probe showed a sensitive limit of detection and a linear response to residue concentrations. Additionally, a smartphone-based portable detection tool was created for visual and quantitative detection of methylparathion residues.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Jianjun Shen, Lingfei Li, Xiaohui Kang, Dan Lin, Youyu Xiao, Liang Yang, Changlong Jiang
Summary: A hydrogel dressing with antibacterial properties was designed using a multilayered upconversion nanocomposite consisting of upconversion nanoparticles coated with a mesoporous silica-loaded zinc phthalocyanine photosensitizer. The nanocomposite exhibited antibacterial activity through photodynamic therapy. The dressing, assembled with chitosan using a non-toxic active ester of polyethylene glycol as the cross-linking agent, showed good antimicrobial activity and significantly accelerated wound healing in vivo due to its low toxicity, deep tissue penetration, good biocompatibility, and strong antibacterial capacity. This photodynamic hydrogel dressing provides a practical application pathway for sterilization and wound treatment.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhuang Ding, Yaru Wang, Wanpeng Zhou, Yanna Shui, Zhengdong Zhu, Maofeng Zhang, Youju Huang, Changlong Jiang, Jianhua Li, Yucheng Wu
Summary: A highly sensitive and uniform surface-enhanced Raman scattering (SERS) substrate was developed by growing a TiO2 nanorods (NRs) array on a TiO2 compact layer, followed by modification with Ag nanoparticles. The synergistic effect of the c-TiO2, semiconductor TiO2 NRs, and plasmonic AgNPs contributed to its high sensitivity, with a 10-fold improvement compared to substrates without c-TiO2. The TiO2-Ag hybrid array substrate demonstrated quantitative and multi-component detecting capability, with detection limits of 10(-9) M for crystal violet and 10(-7) M for thiram, triazophos, and fonofos. Realistic simulation detecting pesticide residues in a sample of dendrobium was also demonstrated.
Article
Materials Science, Multidisciplinary
Cheng Ye, Meng He, Zhengdong Zhu, Xiaoyi Shi, Maofeng Zhang, Zhiyong Bao, Youju Huang, Changlong Jiang, Jianhua Li, Yucheng Wu
Summary: A novel dual-MOF-induced ZnO@Co3O4 heterostructure modified with AgNPs was designed and fabricated as a surface-enhanced Raman scattering (SERS) sensor for the sensitive identification and quantitative analysis of organophosphorus pesticides. The SERS sensor exhibited superior signal enhancement, reproducibility, and stability, and enabled rapid quantitative analysis of pesticide residues in real samples.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Analytical
Xueting Li, Chenyue Xu, Lan Yan, Yating Feng, Haoyue Li, Cheng Ye, Maofeng Zhang, Changlong Jiang, Jianhua Li, Yucheng Wu
Summary: This study presents a SERS sensor combining MOF-derived ZnO@TiO2 heterostructure with plasmonic AgNPs, which exhibits high sensitivity, excellent signal reproducibility, and stability for rapid and on-site pesticide analysis.
ANALYTICAL METHODS
(2022)
