Article
Materials Science, Multidisciplinary
Miao Yu, Qihang Tian, Guangyuan He, Kaimin Cui, Jihong Zhang
Summary: Surface-enhanced Raman scattering (SERS) is a novel method for low concentration molecular detection, and tapered fiber SERS probes based on silver nanocubes exhibit high sensitivity. These probes can be used for both qualitative and quantitative analysis, with an optimal cone angle of 8.3 degrees.
ADVANCED FIBER MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yanzhao Pang, Mingliang Jin
Summary: A highly aligned AgNW array film was prepared using a self-assembly method, which showed excellent signal reproducibility and detection ability at low concentrations. The uniform distribution of hot spots inside the AgNW substrate amplified the SERS signal.
Article
Chemistry, Analytical
Monica Ricci, Beatrice Fortuni, Raffaele Vitale, Qiang Zhang, Yasuhiko Fujita, Shuichi Toyouchi, Gang Lu, Susana Rocha, Tomoko Inose, Hiroshi Uji-I
Summary: The study introduced the use of silver nanowires as endoscopic probes for detecting intracellular Raman signals and proposed an advanced strategy to significantly enhance their performance. By uniformly forming gold structures on the smooth AgNW surface, high surface-enhanced Raman scattering efficiency was achieved, demonstrating applicability for molecular sensing in cells.
ANALYTICAL CHEMISTRY
(2021)
Article
Spectroscopy
Mohammad Kamal Hossain, Qasem Ahmed Drmosh
Summary: Plasmonic nanostructures, particularly irregular surfaces of silver nanorings, have shown promise in surface-enhanced Raman scattering (SERS) spectroscopy. Through the fabrication and characterization of clusters-based Ag nanorings, it was found that they could achieve SERS enhancement factors as high as 2.1 x 10^4. By simulating EM near-field distributions and investigating the irregular shapes and arrangements of clusters within the nanorings, a deeper understanding of the underlying EM mechanism in SERS enhancements was gained.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Nanoscience & Nanotechnology
Dan Yu, Qilong Yin, Jiwei Wang, Jian Yang, Zimeng Chen, Zihan Gao, Qingli Huang, Shibao Li
Summary: A novel SERS-based sandwich immunoassay was developed for quantitative detection of serum biomarkers A beta 1-42 and P-Tau-181, showing great potential for early diagnosis of Alzheimer's disease. The method exhibited favorable detection performance in protein standards and differentiated AD from non-AD dementia patients in clinical serum samples.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2021)
Article
Chemistry, Applied
Jie He, Hongxia Li, Lulu Zhang, Xiao Zhi, Xin Li, Xin Wang, Zijian Feng, Guangxia Shen, Xianting Ding
Summary: This study demonstrated an easy-prepared and low-cost surface enhanced Raman Scattering (SERS) chip for the quantitative testing of carbendazim in Chinese tea, which offers more aggregation-induced hotspots, strong 3D synergetic effects, and reduces costs without impacting performance.
Article
Biophysics
Tongtong Tian, Jia Yi, Yujie Liu, Binxiao Li, Yixin Liu, Liang Qiao, Kun Zhang, Baohong Liu
Summary: This study presents the development of highly efficient nanoparticle arrays for simultaneous capture, identification, and differentiation of bacteria using SERS technology, allowing for single-cell analysis of multiple bacterial species. The technology demonstrates high sensitivity, good reproducibility, and stability, with great potential in bacterial detection and phenotyping studies.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Analytical
Yurong Zhuang, Chenchen Wang, Yong Wang, Yuhui Chen, Songqin Liu, Wei Wei
Summary: It was found for the first time that vanillin and TMB can reduce Tollens' reagent to different types of Ag nanoparticles. Based on this, a dual-mode detection method for vanillin was designed using colorimetry and SERS. This method allows for rapid, visual and highly sensitive detection of vanillin.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Di Liu, Huimin Gao, Wenji Jiang, Su Yan, Hao Liu, Junjie Chen, Sisi Wen, Wei Zhang, Xu Wang, Bing Zhao, Wei Song
Summary: In this study, three-dimensional Ag aerogel-supported Hg single-atom catalysts were used as an efficient SERS substrate for monitoring enhanced oxidase-like reactions. The effect of Hg2+ concentrations on the SERS properties of 3D Hg/Ag aerogel networks was investigated, and an optimized addition of Hg2+ resulted in specific enhancement. The formation of Ag-supported Hg SACs was confirmed using HAADF-STEM imaging and XPS measurement, and the oxidase-like catalytic mechanism of Hg/Ag SACs was revealed using DFT. This research provides a mild synthetic strategy for fabricating Ag aerogel-supported Hg single atoms with promising prospects in various catalytic fields.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Puran Pandey, Siela Vongphachanh, Jongwon Yoon, Bokyoung Kim, Chel-Jong Choi, Jung Inn Sohn, Woong-Ki Hong
Summary: This study demonstrated the use of AgNWNF-coated stretchable PDMS substrates as SERS sensors with strong effects. The adhesion strength of AgNWNEs on UVO-treated PDMS substrates was significantly stronger than that of AgNWNFs on untreated PDMS.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Suotao Dong, Xiuhua Fu, Zhongyao Zhu, Cheng Li
Summary: This article introduces a method to enhance surface Raman scattering by utilizing the local surface plasmon resonance phenomena. By depositing silver on the surface of zinc oxide thin films with different pH values, the Raman scattering signal is significantly improved, and the optimal acid-base environment is identified.
APPLIED SCIENCES-BASEL
(2022)
Article
Multidisciplinary Sciences
Norhayati Abu Bakar, Joseph G. Shapter
Summary: Strategies for controlling anisotropic metal nanostructures have been developed for their potential in surface-enhanced Raman scattering (SERS) sensing. Silver substrates have been shown to be powerful tools for trace chemical analysis. In this work, star-shaped silver nanostructures were synthesized and used as SERS substrates for the detection of neonicotinoid pesticides. These substrates showed good reproducibility, reusability, and stability in SERS enhancement, enabling detection at low concentrations. The distribution of these nanostructures on the surface allowed for excellent reproducibility of the detection with a low relative standard derivation (RSD) of SERS intensity of 8%. This work establishes a platform for ultrasensitive detection of pollutants at very low levels without extensive pre-processing.
Article
Chemistry, Analytical
Yu Fukunaga, Makoto Harada, Tetsuo Okada
Summary: Freezing is proposed as an efficient way to enhance sensitivity and reproducibility in SERS measurements, maximizing signal intensity and preparing a high-performance SERS platform through simple methods.
Article
Biochemistry & Molecular Biology
Aleksandra Michalowska, Andrzej Kudelski
Summary: The study introduces a novel magnetic-silver plasmonic nanomaterial that can be manipulated using a magnetic field and applied in Raman spectroscopy. By creating nanoresonators on silver plasmonic structures, the intensity of electromagnetic radiation can be enhanced across a wider frequency range.
Article
Chemistry, Analytical
Yan Wu, Jin-Yang Chen, Wei-Min He
Summary: In this study, a peroxidase-mimicking nanozyme was prepared by growing silver nanoparticles on the surface of a metal-organic framework. The nanozyme not only served as a surface-enhanced Raman spectroscopy substrate, but also effectively catalyzed the oxidation of leucomalachite green into malachite green. The nanozyme was successfully applied for the sensitive detection of cholesterol.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Optics
Haihao Fu, Chao Liu, Zao Yi, Xinping Song, Xianli Li, Yanshu Zeng, Jianxin Wang, Jingwei Lv, Lin Yang, Paul K. Chu
Summary: This paper presents a new optimization method and demonstrates it using a LaSF09 high refractive index ring in the central pore. The performance parameters of PCFs at 1.55μm, such as effective index difference, dispersion, effective mode area, nonlinear coefficient, numerical aperture (NA), OAM purity, walk-off length, and confinement loss, are analyzed. The validity and potential of the optimization method for the design and optimization of PCFs are confirmed through verification using a conventional PCF capable of transmitting OAM modes.
JOURNAL OF OPTICS-INDIA
(2023)
Article
Biotechnology & Applied Microbiology
Chengbiao Ding, Leying Ni, Qi Liu, Chenxu Zhou, Guomin Wang, Paul K. Chu, Zhengwei Wu
Summary: Inspired by the similarity between rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS) and cancer cells, this study systematically and thoroughly investigates the therapeutic effects of cold air plasma (CAP) on RA. The results demonstrate that CAP with the proper dosage significantly alleviates symptoms and eliminates the root cause by triggering the self-antioxidant capability of the surrounding tissue. The molecular and cellular mechanism reveals that the spontaneous reactive oxygen species (ROS) cascade induces the mitochondrial apoptosis pathway on RA-FLS. This study unveils a new strategy for targeted treatment of RA and provides the theoretical foundation for future development of plasma medicine.
BIOENGINEERING & TRANSLATIONAL MEDICINE
(2023)
Article
Optics
Lin Yang, Chunjie Hu, YuYang Zhao, Zao Yi, Qiang Liu, Chao Liu, Jingwei Lv, Paul K. Chu
Summary: In this study, a photonic crystal fiber (PCF) temperature sensor based on surface plasmon resonance with dual embedded silver wires was designed and investigated. The sensor showed high temperature sensitivity and a wide temperature sensing range.
JOURNAL OF OPTICS-INDIA
(2023)
Article
Materials Science, Multidisciplinary
Qin Gao, Jiangshun Huang, Juan Gao, Xueli Geng, Yuhang Ji, Haoze Li, Guoxing Wang, Bo Liang, Mei Wang, Zhisong Xiao, Ying Zhu, Paul K. Chu, Anping Huang
Summary: In this study, a functionalized honeycomb-like synaptic memristor (HLSM) was successfully fabricated, and the synaptic properties, such as short-term and long-term plasticity, were observed and controlled without gate voltage regulation. An artificial neural network (ANN) based on the potentiating/depressing characteristics showed an improved recognition rate from 54.2% to 91.8% simply by adjusting the input frequency.
MATERIALS TODAY PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Mingze Li, Yu Zhou, Xiao Tang, Hao Zhang, Shaolong Wang, Anmin Nie, Xingce Fan, Yingchun Cheng, Teng Qiu
Summary: Two-dimensional layered materials (2DLMs) are expected to be the next-generation commercial sensors for surface-enhanced Raman scattering (SERS) sensing due to their unique structural features and physicochemical properties. Monolayer iron oxychloride (FeOCl) with a naturally suitable band structure is identified as a promising candidate for ultrasensitive SERS sensing. The generally enhanced Raman scattering cross-section of FeOCl systems benefits from resonant photoinduced charge transfer processes and strong ground-state interactions, while its strong adsorption ability enables rapid detection in practical applications, surpassing conventional SERS sensors. Consequently, monolayer FeOCl enables diverse SERS applications, including multi-component analysis, chemical reaction monitoring, and indirect ion sensing.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
De Gao, Shuzhen Deng, Xiaoyan Chen, Yingxi Zhang, Tuan Lv, Yang He, Feng Zhou, Wen Zhang, Paul K. Chu, Kaifu Huo
Summary: A mixed ion/electron conductive Li3N-Mo protective interphase is designed and demonstrated to stabilize the Li-electrolyte interface for a dendrite-free and ultrahigh-current-density metallic Li anode.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Analytical
Zanling Huang, Shuqi Zhu, Abebe Reda Woldu, Wenhua Gao, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu
Summary: This study demonstrates a bimetallic ion co-catalyzed electrochemical glucose detection by introducing Co(II) and Cu(II) into an alkaline solution. By using nitrogen-doped carbon nanotubes loaded on carbon cloth as the working electrode, the system achieves high sensitivity, low detection limit, good selectivity, and stability. Through systematic electrochemical and structural analysis, the mechanism of Co(II) and Cu(II) co-catalysis in glucose detection is elucidated.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Fengjuan Miao, Yue Han, Pengbo Tian, Bairui Tao, Yu Zang, Paul K. Chu
Summary: This paper proposes an integrated humid temperature phosgene (HTLC) sensor based on passive RFID technology for measuring multi-dimensional environmental information during the planting of agricultural products. The sensor operates stably at various conditions and has the advantages of low cost, fast response, good repeatability, and good stability. It can collect and display parameter information of the crop growth environment in multiple dimensions, making the monitoring and management more accurate and intelligent, and helping to improve crop yield.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Materials Science, Multidisciplinary
Jie He, Jianxin Wang, Lin Yang, Jingwei Lv, Wei Liu, Qiang Liu, Paul K. K. Chu, Chao Liu
Summary: Driven by the rapid development of fiber optic sensing technology, photonic crystal fiber (PCF) sensors based on surface plasmon resonance (SPR) have gained significant attention. However, they have limitations in detection range and complex coating processes. In this study, a wide-range SPR sensor is designed using a ring-core PCF filled with plasmonic materials. Numerical analysis shows that the PCF-SPR sensor exhibits high sensitivity and resolution, outperforming conventional solid-core PCF-SPR sensors for biochemical sensing applications.
Article
Materials Science, Multidisciplinary
Callum Stewart, Babak Mehrjou, Hui Huang, Yunxin Long, Kyler Chow, Tsz Wai Kok, Paul K. Chu, Linxian Li
Summary: Revolutionizing the field of surface and interface science, silicone-based organogel LIS with silver nanoparticles (Ag NP) shows excellent potential for various biological, food, or cosmetic applications. By investigating its physicochemical properties, omniphobic dewetting behavior, and biocompatibility, we provide a scalable methodology for producing multifunctional LIS, which can be utilized in the food packaging, cosmetic, and biological industries.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mingze Li, Yunjia Wei, Xingce Fan, Guoqun Li, Xiao Tang, Weiqiao Xia, Qi Hao, Teng Qiu
Summary: In this work, VSe2-xOx@Pd sensors were proposed to track the molecular dynamics in Pd-catalyzed reactions. The excellent SERS performance of VSe2-xOx@Pd was achieved through metal-support interactions, which enhanced the photoinduced charge transfer to the adsorbed molecules and consequently enhanced the SERS signals. The feasibility of improved SERS performance of catalytic metals and the investigation of Pd-catalyzed reactions based on VSe2-xOx@Pd sensors were demonstrated.
Article
Chemistry, Multidisciplinary
Cheng Wang, Xiuli Li, Hao Song, Paul K. Chu, Kaifu Huo
Summary: Researchers have successfully prepared 2D MoN/MoC nanosheets using a controllable method with MoS2 as the precursor. They found that the pseudocapacitance of the nanosheets originates from the reversible reaction between Mo-N sites and H+ in the acidic electrolyte. This study provides new insights into the development of high-performance 2D heterostructured materials for superior pseudocapacitive storage.
ADVANCED FUNCTIONAL MATERIALS
(2023)
