Article
Chemistry, Analytical
Weiwei Zheng, Wentao Tian, Xiaojun Liu, Qingquan Zhang, Chenghua Zong, Jia-Ping Lai, Wenfeng Zhao
Summary: The study synthesized Ag nanoparticles on polyester fiber membrane surfaces, creating significant SERS activity with "hot spots" and an enhancement factor of 2.1×10^9. Sodium saccharin was bonded to the Ag NPs surface for sensitive and rapid detection of SS in soft drinks. The method is reliable, with a recovery rate ranging from 93% to 103%, suitable for actual sample detection.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Cai-jun Wu, Si-qi Huang, Yu-ying Wang, Ya-qin Chai, Ruo Yuan, Xia Yang
Summary: The study involves stabilizing self-assembled Au NPs on the liquid-liquid interface using DNA structures, combined with DNA recycling amplification strategy to construct a liquid-phase SERS biosensor for efficient detection of miRNA 155. Compared to traditional methods, the SERS signal is significantly enhanced, detection limit is lower, and linear range wider.
ANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Chan-Chiung Liu, Chien-Hsuan Ko, Yao-Nan Wang, Lung-Ming Fu, Sheng-Zhuo Lee
Summary: The study introduced a microfluidic chromatography detection system for simultaneous concentration determination of saccharin sodium and acesulfame potassium. The system showed reliable detection performance and results were within 6.3% of traditional HPLC systems when tested on commercial food samples.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Jinn P. Chu, Kuan-Wei Tseng, Chih-Yu Liu
Summary: This paper presents the fabrication of highly-ordered periodic metallic nanotube arrays using alloys and elemental metals, showing properties typical of nanostructures such as enhanced Raman scattering and high hydrophobicity. The proposed nanotubes can be fabricated in various shapes, heights, and diameters, and could potentially be used as a platform for the development of nanohybrids in conjunction with other nanomaterials.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Analytical
Xuefang Gu, Shu Tian, Yiyang Chen, Yuxin Wang, Dandan Gu, Enhui Guo, Ying Liu, Jianguo Li, Anping Deng
Summary: The SERS-based competitive immunoassay for detecting beta-adrenergic agonists was developed using highly ordered gold cavity arrays, achieving high sensitivity and recoveries. Introduction of long DNA concatamers and silver staining can enhance the sensitivity, making it a new efficient and sensitive detection method.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Nanoscience & Nanotechnology
Chengpeng Zhang, Shuai Chen, Zhaoliang Jiang, Zhenyu Shi, Jilai Wang, Lutao Du
Summary: A highly sensitive and stable 3D SERS substrate based on ordered micropyramid array and silver nanoparticles was constructed, showing a low detection limit and high repeatability. The substrate also demonstrated the ability to quantitatively analyze pesticide residues.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Ling Yao, Lei Ouyang, Jiping Lv, Pei Dai, Lihua Zhu
Summary: The developed method utilizes cationic surfactants to modify nano-Ag aggregates for rapid and sensitive detection of hydrophobic contaminants in foods. It provides a low detection limit, good reproducibility, short operation time, and does not require complicated pretreatment for sample preparation.
MICROCHEMICAL JOURNAL
(2021)
Article
Environmental Sciences
Yazhou Qin, Jiaxin Qiu, Nan Tang, Yuanzhao Wu, Weixuan Yao, Yingsheng He
Summary: In this study, a fast detection method combining membrane filtration technology and surface-enhanced Raman spectroscopy (SERS) was developed to simultaneously enrich and detect nanoparticles as small as 20 nm. The method successfully detected standard polystyrene microspheres ranging from 20 nm to 10 μm and 100 nm polystyrene nanoplastics in tap water and rainwater.
ENVIRONMENTAL RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Dong Su, Siqi Yang, Yuxuan Xiong, Xi Yang, Xie Yu, Pei Zeng, Yuqing Wu, Yutian Cheng, Tao Zhang, Haiping Shen, Huageng Liang, Guangzu Zhang, Boxiang Song, Shenglin Jiang
Summary: Surface-enhanced Raman spectroscopy (SERS) is a powerful technique for ultrasensitive molecular detection. In this study, hierarchical plasmonic hotspot arrays consisting of ordered Au nanoclusters were proposed for large-scale SERS substrates with high enhancement and uniform response. The fabrication process involved modified colloidal lithography with rotational coordinates, which induced nanogaps formation in the Au nanoclusters. The plasmonic coupling in these nanogaps resulted in an ultrahigh Raman enhancement factor and low limit of detection. This hierarchical plasmonic hotspot array showed high uniformity and sensitivity, and was able to accurately identify the components in transformer oil, making it a promising platform for ultrasensitive molecular detection.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Analytical
Jianxia Cheng, Zhiyang Zhang, Longfei Zhang, Jiaqi Miao, Yan Chen, Rongfang Zhao, Meichun Liu, Lingxin Chen, Xiaoyan Wang
Summary: A freeze-thaw-ultra-sonication method is proposed to obtain stable colloidal Ag nano-aggregates, which can maintain metal surface charges and adsorption affinity, ensuring excellent SERS stability and sensitivity. By combining with microfluidic devices, a sequential SERS on-line continuous detection method is established for high-throughput detection of multiplex samples. The method has been successfully applied in the sensitive and accurate detection of 5-nitro-8-hydroxyquinoline (5-NQ) with antibacterial and anticancer activities.
Article
Spectroscopy
Xiangxin Xue, Lei Chen, Cuimei Zhao, Ming Lu, Yu Qiao, Jing Wang, Jinghui Shi, Limin Chang
Summary: In this study, a Ti3C2Tx/Ag composite was fabricated and showed good SERS behavior with a high enhancement factor. The substrate exhibited good stability and reproducibility, making it suitable for practical applications as a SERS sensor.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Applied
Feng Bai, Jinchen Dong, Tangchun Wang, Jianbo Qu, Zhiliang Zhang
Summary: Pesticide residues in fruit and vegetable pose a significant threat to human health. A new method utilizing WPU@AgNPs sticky tapes was developed for rapid extraction and surface-enhanced Raman scattering (SERS) assay of thiabendazole residues on fruit surfaces. The WPU@AgNPs tapes, constructed by coating silver nanoparticles (AgNPs) on waterborne polyurethane (WPU) films, demonstrated excellent sensitivity using 4-Mercaptopyridine (4-Mpy) as the probe molecule. The tapes allowed for easy detection of thiabendazole residues on pear, apple, and banana surfaces, with a detection limit of 1.44, 1.12, and 1.63 ng/cm2, respectively. This strategy could be a common method for rapid, on-site, and ultra-sensitive assay of thiabendazole residues in both chemical and biological fields.
Article
Chemistry, Multidisciplinary
Rong Zhu, Hongjuan Feng, Qingqing Li, Lichao Su, Qinrui Fu, Juan Li, Jibin Song, Huanghao Yang
Summary: The study showed that Janus nanogap gold nanoparticles with varying proportions of Au shell coverage exhibit asymmetric optical behavior, with tunability depending on the degree of shell coverage and structural asymmetry. By tuning hydrophilic and hydrophobic polymer brushes, shell-to-shell or core-to-core structures can be formed, leading to enhanced electromagnetic field effects. Additionally, the use of DNA linkers enabled the successful fabrication of dimeric nanostructures.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Agriculture, Multidisciplinary
Weiyong Wang, Qi Mu, Xianzhou Feng, Wenjiao Liu, Houqiang Xu, Xiang Chen, Fangxiong Shi, Ting Gong
Summary: In this study, it was found that down-regulation of T1R3 expression decreased the levels of steroidogenic enzymes and hormones in Leydig cells, while T1R3 activation increased their levels. These findings suggest that T1R3 plays a crucial role in testicular steroidogenesis.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Analytical
Yi-Chi Lu, Wei-Hung Chiang, Chih-Yu Liu, Jinn P. Chu, Hsin-Chia Ho, Chun-Hway Hsueh
Summary: This study successfully fabricated ultrahigh sensitivity SERS substrates using metallic glass nanotube arrays at wafer scale, demonstrating detection of crystal violet and folic acid. This represents a significant step towards large-scale production of highly sensitive SERS-active materials.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Yanbin Wang, Xinyou Huang, Ziqiu Cheng, Penghui Chen, Yuyang Chen, Junhao Ye, Haohong Chen, Zhenzhen Zhou, Denis Yu Kosyanov, Jiang Li
Summary: Uniform Al2O3-Ce:LuAG composite phosphor ceramics (CPCs) with excellent luminescent properties and thermal stability have been successfully synthesized in this study, showing great potential for application in solid-state laser lighting.
Article
Materials Science, Multidisciplinary
Syed Muhammad Ali Zaidi, Mazhar Ali Kalyar, Zulfiqar Ali Raza, Aayesha Shoukat, Rubaila Waseem, Muhammad Aslam
Summary: Polyvinyl alcohol (PVA) nanocomposite strips embedded with graphene nanosheets and copper-ferrite nanoparticles were synthesized using solution casting technique. Laser pulse irradiations were then applied to modify the structural, optical, and electrical properties of the strips, showing potential for optoelectronic devices.
Article
Materials Science, Multidisciplinary
Yunru Chen, Jialing Wu, Jiajia Wang, Shihui Ma, Hongwei Yu
Summary: This paper investigates the angular non-critical phase-matching second-harmonic-generation properties of Ba3(ZnB5O10)PO4 crystal and explores its potential applications in the output spectral regions.
Article
Materials Science, Multidisciplinary
Qun Jing, Menglin Zhu, Lu Li, Xu Ji, Haiming Duan, Henglei Chen, Ming-Hsien Lee
Summary: The paper introduces two new nonlinear optical materials, MZnPO4 (M = Rb, Cs), synthesized by cation substitution. These materials exhibit a honeycomb-like structure and show mild SHG responses with short absorption edges. The thermal properties, IR spectra, and theoretical calculations of the materials are also discussed.
Article
Materials Science, Multidisciplinary
Camila Ianhez-Pereira, Akhil Kuriakose, Ariano De Giovanni Rodrigues, Ana Luiza Costa Silva, Ottavia Jedrkiewicz, Monica Bollani, Marcio Peron Franco de Godoy
Summary: This study aims to evaluate the crystalline changes induced by ultrafast laser micromachining on manganese oxide thin films using micro-Raman spectroscopy. The results show that laser-writing is effective in locally modifying low-crystallinity films and increasing crystallite sizes, highlighting an interesting approach to evaluate laser-induced structural modifications on metal oxide thin films.
Article
Materials Science, Multidisciplinary
Kamal Bansal, Neeraj Kumar Mishra, Ibrahim Abdullahi, Param Jeet Singh, Mohit Tyagi, Sukhpal Singh
Summary: A novel Sm3+ activated oxyfluoride glass was synthesized and its structure and properties were analyzed. The glass showed potential applications in lasers, optical temperature sensing, and high-energy scintillators.
Article
Materials Science, Multidisciplinary
Xingjian Wang, Zhixu Wu, Jiawei Zhu, Yubin Kang, Mengqiang Cai, Yong Xia, Hui Deng
Summary: Antimony sulfide (Sb2S3) has been investigated as a promising material for visible light photodetectors due to its non-toxicity, stability, and high absorption coefficient. In this study, we systematically explored the impact of key parameters on the performance of Sb2S3 devices using simulation and successfully fabricated self-powered photodetectors with high responsivity and specific detectivity. Furthermore, we demonstrated the application of the Sb2S3 detector in a scanning imaging system, showcasing its potential for developing new types of visible light detectors and imaging systems.
Article
Materials Science, Multidisciplinary
O. I. Sallam, R. M. Ahmed
Summary: The 20NaF-60P2O5-20Na2O fluorophosphate glass systems doped with 3 wt% of CoO and NiO were investigated for their optical parameters before and after gamma irradiation. The presence of defects within the glass network and the addition of transition metals were found to affect the properties of the composites. After irradiation, a red shift was observed in the dissipation factor spectrum. The energy lost at the surface of the composites was larger than the energy lost within the constituent materials. All investigated composites showed insulating behavior and exhibited increased nonlinear optical parameters after irradiation, with the CoO-doped composite showing the highest values.
Article
Materials Science, Multidisciplinary
Fahimeh Ahmadi, Zeinab Ebrahimpour, Asghar Asgari, Bao Van
Summary: In this study, Er3+-doped sulfophosphate glasses containing titanium nanoparticles (TiO2 NPs) and different concentrations of silver nanoparticles (AgNPs) were synthesized. The impact of AgNPs on the physical and structural characteristics, optical absorption and emission features, and photocatalytic activity of the glasses were investigated. The results showed that the addition of AgNPs enhanced the emission intensity of the glasses, with the system containing 0.04 mol% of AgNPs exhibiting optimal performance. Furthermore, the presence of AgNPs and TiO2 NPs in the glass matrix positively affected the photocatalytic performance.
Article
Materials Science, Multidisciplinary
Zhuang Li, Rongfei Huang, Wei Yuan, Shaoqiang Zheng, Wenlu Liao, Huiying Xu, Zhiping Cai
Summary: This study reports the first realization of an 868 nm Pr:YLF laser pumped by an InGaN blue laser diode. The laser achieved a maximum power of 641 mW with stable output and good beam quality. The experimental results were in agreement with theoretical simulations.
Article
Materials Science, Multidisciplinary
Bhishma Karki, Youssef Trabelsi, Amrindra Pal, Sofyan A. Taya, Ram Bharos Yadav
Summary: This study proposes an SF11 Prism- Ag- ZnO nanowires-CeO2-Sensing layer-based surface plasmon resonance sensor for measuring dopamine concentration in human blood. The sensor demonstrates high sensitivity and detection accuracy, and holds significant importance for early diagnosis of neurological diseases.
Article
Materials Science, Multidisciplinary
M. Taoufiq, A. Soussi, A. Elfanaoui, A. Ait Hssi, S. Baoubih, A. Ihlal, K. Bouabid
Summary: In this study, the effect of copper doping within ZnS on glass substrates was investigated through experimental and theoretical approaches. Pure ZnS and Cu-doped ZnS films with varying copper concentrations were deposited on glass substrates using the SILAR technique. The structural, morphological, and optical properties of the films were characterized, and the theoretical FP-LAPW method based on density functional theory was employed to study the properties of copper-doped ZnS.