Article
Chemistry, Physical
Moumita Das, Keshav Kumar Singh, Eram Khan, Rajeev K. Sinha, Ranjan K. Singh, Poonam Tandon, Debraj Gangopadhyay
Summary: This study investigates how N-Acetylcysteine (NAC) acts as an antitoxin of arsenic poisoning by forming a stable complex with arsenic, protecting biomolecules from toxic effects. Experimental and theoretical analyses suggest the formation of the complex occurs in three steps, highlighting the high affinity of NAC towards arsenic.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Analytical
Hongyan Song, Xia Yan, Hang Zhao, Xu Zhang, Xiaofeng Shi, Jun Ma
Summary: This paper investigated the adsorption orientation and charge transfer mechanism of two polychlorinated biphenyls (PCBs) on the gold nanoparticles surface using theory and surface-enhanced Raman spectroscopy (SERS). The results showed that destruction of structural symmetry led to the split of benzene vibration peak in Raman spectra. The molecules were found to be adsorbed on the gold cluster at a specific angle through the pi-type orbit. The small energy gap between PCBs and gold cluster allowed for smooth electron transfer. The successful use of charge distribution state explained the structural change and peak shift trend. This paper lays a theoretical foundation for further study of the SERS chemical mechanism, SERS spectra prediction, and PCBs homologues identification.
VIBRATIONAL SPECTROSCOPY
(2022)
Article
Engineering, Environmental
Ting Wang, Shuangpeng Wang, Zehua Cheng, Jinchao Wei, Lele Yang, Zhangfeng Zhong, Hao Hu, Yitao Wang, Bingpu Zhou, Peng Li
Summary: Pesticide residues pose a significant threat to human health and the environment, driving the need for rapid and effective detection methods. Core-shell nanostructures as novel SERS substrates have been widely utilized in rapid pesticide detection research. Understanding and monitoring pesticide residues can be improved through the classification and evaluation of different core-shell nanostructures and early-warning analysis.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Jan Krajczewski, Robert Ambroziak, Andrzej Kudelski
Summary: Surface-Enhanced Raman Scattering (SERS) refers to the phenomenon where the efficiency of generating Raman spectra by molecules adsorbed on some substrates is many orders of magnitude larger than those that are not adsorbed. Significant advances have been made in utilizing nanostructured non-metallic materials as SERS substrates, showing great potential for future applications.
Article
Chemistry, Multidisciplinary
Cristina Gellini, Marina Macchiagodena, Marco Pagliai
Summary: The adsorption geometry of alizarin on silver nanoparticles was studied using density functional theory calculations, considering different charged species present in solution at different pH values. The results accurately reproduced the measured SERS spectra and elucidated the adsorption geometry of the dye on the silver substrate.
Article
Chemistry, Analytical
Yangcenzi Xie, Yu Wen, Xiaoming Su, Chao Zheng, Ming Li
Summary: A machine learning-driven surface-enhanced Raman spectroscopy (SERS)-integrated strategy is developed for label-free detection of cellular HER2, achieving high accuracy in cell identification and classification for HER2+ breast cancer. The combination of label-free SERS detection and machine learning-driven analysis enables longitudinal monitoring of therapeutic efficacy, aiding in decision-making and management.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Marianna Pannico, Pellegrino Musto
Summary: Gold colloidal solutions were used as SERS platforms for the detection and quantitative analysis of the anticancer drug 6-Mercaptopurine. The adsorption process was found to be fast, producing significant SERS signaling in the 5-20 mu M range. Kinetic analysis revealed the formation of long-lived metastable aggregates at 15 and 20 mu M composition, while the colloidal solution collapsed immediately at 50 mu M, indicating a complex behavior of the system.
APPLIED SURFACE SCIENCE
(2021)
Review
Instruments & Instrumentation
E. Akanny, A. Bonhomme, F. Bessueille, S. Bourgeois, C. Bordes
Summary: SERS technique has been widely used in bacteria analysis, offering advantages in terms of analysis time, sensitivity, and sample preparation compared to traditional bacteria culture methods. Over the past 20 years, various SERS methods have been developed for bacteria analysis, with a comprehensive study of related technical issues.
APPLIED SPECTROSCOPY REVIEWS
(2021)
Article
Spectroscopy
Juanhua Zhang, Yuzhen Li, Mengxiao Lv, Yihui Bai, Zhenmin Liu, Xuexiang Weng, Chunping You
Summary: A rapid detection method for 5-HMF in processed cheese using surface-enhanced Raman spectroscopy (SERS) was developed, and the surface enhancement effect of colloidal gold nanoparticles (AuNPs) substrate was determined. The method is simple, rapid, and accurate, showing promising applications in food safety and analysis.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Optics
Narcisa Nechita, Cosmin Farcau
Summary: The study investigates the optical response of metal film over nanospheres (MFoN) covering a wide range of sphere diameters and metal film thicknesses, focusing on plasmonic absorbance bands and behavior in aqueous environments. A new absorbance band is identified for larger spheres and thicker films, with fine metal film morphology impacting reflectance (and absorbance) significantly. The individual roles of metal particles and dielectric sphere arrays on overall optical response are discussed, as well as the analysis of different metal types.
Article
Spectroscopy
Faezeh Mohaghegh, Alireza Mazaheri Tehrani, Debkumar Rana, Mathias Winterhalter, Arnulf Materny
Summary: The study proposes a relatively simple experimental procedure for the simultaneous detection and quantitative assessment of the antibiotic moxifloxacin using surface-enhanced Raman spectroscopy in a Kretschmann configuration. The results demonstrate high sensitivity and a relatively simple experimental procedure, with direct coupling between analyte molecules' electronic systems and metal substrate playing a major role in the chemical enhancement mechanism of SERS. This enhances the molecular specificity of SERS when using the Kretschmann configuration.
JOURNAL OF RAMAN SPECTROSCOPY
(2021)
Review
Chemistry, Analytical
Navin Kumar Mogha, Dongha Shin
Summary: Despite the interest in nanoplastics, detection techniques are limited. Surface-enhanced Raman spectroscopy has been attempted for nanoplastic analysis, but there are still many limitations. The paper summarizes the current research and discusses the advantages, limitations, and prospects.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Shimon Rubin, Phuong H. L. Nguyen, Yeshaiahu Fainman
Summary: SERS enhances Raman scattering cross section of molecules on plasmonic metals, but a deeper understanding of the physico-chemical interactions is needed for predictive power of DNA sensing platforms. Experimental results show that SERS spectra of ssDNA isomers are influenced by base order and this effect is observed even without chemical enhancement. Numerical simulations support the experimental findings that base permutation modifies Raman and chemically enhanced Raman spectra.
Article
Chemistry, Physical
Ridhima Chadha, Abhishek Das, Sudhir Kapoor, Nandita Maiti
Summary: The adsorption behavior of an anti-thyroid agent, 2-thiazoline-2-thiol (TT) on silver (Ag) and gold (Au) nanoparticles (NPs) was studied with SERS and DFT. Different tautomers were identified, and the surface-induced dimerization of TT was observed. The study provides insights into designing novel metal nanosubstrates and valuable drugs suitable for chelation therapy.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Jean-Francois Bryche, Marlo Vega, Agnes Tempez, Thibault Brule, Thomas Carlier, Julien Moreau, Marc Chaigneau, Paul G. Charette, Michael Canva
Summary: This work demonstrates the enhancement in plasmonic sensing efficacy by spatially-localized functionalization on nanostructured surfaces, where probe molecules are concentrated in areas of high field concentration. SERS measurements on nanostructured surfaces with homogeneous and spatially-localized functionalization with thiophenol show that the Raman signal mainly originates from high field concentration areas. TERS measurements with 10 nm spatial resolution confirm the predicted field distribution profiles.
Article
Nanoscience & Nanotechnology
Huanhuan Sun, Mingguang Yao, Shuang Liu, Yanping Song, Fangren Shen, Jiajun Dong, Zhen Yao, Bing Zhao, Bingbing Liu
Summary: This study demonstrates the enhancement of pressure-induced SERS (PI-SERS) using ML-MoS2 as a substrate and three organic molecules as probes, showing a transition from multiple resonance-related SERS enhancement to charge transfer (CT)-dominated PI-SERS selective enhancement. The mechanism of PI-SERS enhancement is found to be related to the Fermi level of the substrate and the HOMO-LUMO energy gap of the probe molecules.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Yanan Wang, Meng Zhang, Hao Ma, Hongyang Su, Aisen Li, Weidong Ruan, Bing Zhao
Summary: This study investigated the use of Ga-doped ZnO nanoparticles as novel SERS substrates based on the electromagnetic enhancement contribution of surface plasmon resonance (SPR). It was found that Ga-doped ZnO NPs with the highest free charge carrier density and a doping ratio of 5% exhibited the strongest SERS spectra. The study showed the feasibility of electromagnetic contributions to SERS using semiconductive substrates and could contribute to the development of the semiconductor-based EM mechanism.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Shiyu Zhao, Jian Wu, Xiaochun Chi, Ning Sui, Zhihui Kang, Qiang Zhou, Han-zhuang Zhang, Bing Zhao, Yinghui Wang
Summary: The investigation of CsPbBr3 nanorods and cubic CsPbBr3 nanocrystals reveals the anisotropic properties of CsPbBr3 nanorods, with their photoluminescence intensity and radiative lifetime being sensitive to the polarization direction. Additionally, CsPbBr3 nanorods display two-photon fluorescence. These findings provide comprehensive insights into the optoelectronic properties of inorganic halide perovskite nanomaterials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Lin Zhu, Peng Li, Huanhuan Sun, Xiaoxia Han, Yitong Xu, Xiaolei Wang, Bingbing Liu, Yukihiro Ozaki, Bing Zhao
Summary: The study investigates the impact of high pressure on the charge transfer probability in DSSCs, showing that changes in band gap induced by high pressure can enhance CT processes. Additionally, the introduction of Ag NPs in the DSSC system enhances light trapping ability and offers additional CT pathways, potentially improving photoelectric conversion efficiency.
Article
Spectroscopy
Meng Zhang, Yanan Wang, Yan Ma, Xu Wang, Bing Zhao, Weidong Ruan
Summary: In this study, a series of antimony-doped tin oxide nanoparticles were synthesized and used as SERS substrates for the first time, revealing a dependence of the SERS enhancement on the doping ratios. The research indicates a connection between the enhancement effect and the variation of optical band gap energy and free charge carrier densities in conduction bands of the nanoparticles. This provides a new perspective for the development of semiconductor-based SERS substrates and contributes to the understanding of the SERS charge transfer mechanism.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Materials Science, Multidisciplinary
Wei Ji, Linfang Li, Jing Guan, Ming Mu, Wei Song, Lei Sun, Bing Zhao, Yukihiro Ozaki
Summary: The study demonstrated that the hollow multi-shelled V2O5 microstructure can enhance semiconductor-based surface-enhanced Raman scattering (SERS) by providing multiple reflections of electromagnetic waves and generating high electric field contributions. The synergy of these factors significantly increases the sensitivity and universality of semiconductor SERS, showcasing a promising strategy for designing high semiconductor SERS activity substrates.
ADVANCED OPTICAL MATERIALS
(2021)
Review
Food Science & Technology
Meng-Lei Xu, Yu Gao, Xiao Wang, Xiao Xia Han, Bing Zhao
Summary: Food safety and quality have become a major concern, with GC-MS/MS being preferred in food safety laboratories for its sensitivity. Multi-target analysis and efficient purification methods are key trends in food safety analysis.
Article
Chemistry, Physical
Xin Jiang, Lin Xu, Wei Ji, Weie Wang, Juan Du, Libin Yang, Wei Song, Xiaoxia Han, Bing Zhao
Summary: The effects of electron-hole separation on the sensitivity of semiconductor-based surface enhanced Raman scattering (SERS) were investigated using TiO2/ZnO heterojunction as an example. The results showed that the formation of TiO2/ZnO heterojunction improved the separation of the photogenerated electron-hole pairs and significantly enhanced SERS activity. These findings provide insights into the role of electron-hole separation in semiconductor SERS enhancement and offer a new strategy for designing semiconductor SERS-active substrates with high charge transfer contribution.
APPLIED SURFACE SCIENCE
(2022)
Article
Hematology
Qinglian Wang, Jiangong Lin, Hui Han, Dongfeng Wu, Yan Zhou, Bing Zhao
Summary: This study found that preoperative cardiac index is associated with the maturation and patency of radiocephalic arteriovenous fistula. A decreased cardiac index may be a predictor of an increased risk of failed maturation and a shorter primary patency time.
BLOOD PURIFICATION
(2022)
Article
Engineering, Environmental
Jing Jin, Wei Song, Jiaqi Wang, Linjia Li, Yu Tian, Shoujun Zhu, Yuping Zhang, Shuping Xu, Bai Yang, Bing Zhao
Summary: A uniform and small-sized core-shell Ag/oxidized graphene quantum dots (o-GQDs) nanohybrid with enhanced SERS sensitivity and biocompatibility was prepared for intracellular SERS analysis and potential cancer cell therapy.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yanan Wang, Jing Jin, Hao Ma, Meng Zhang, Qianwen Li, He Wang, Bing Zhao, Weidong Ruan, Guan Yan
Summary: This study investigates the importance of enhancing charge transfer in the AZO/MPy/Ag sandwich structure, and identifies a significant CT route from the CB of AZO to the LUMO of the MPy molecule, which can effectively improve the degree of CT. This discovery is expected to play a crucial role in enhancing SERS.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Spectroscopy
Yan Ma, Qianwen Li, Siyu Wang, Yanan Wang, Hongye Liu, Xu Wang, Bing Zhao, Ziping Jiang, Weidong Ruan
Summary: The application of surface enhanced infrared absorption (SEIRA) is limited by the use of expensive noble metal substrates. This study introduces a new semiconductor SEIRA substrate, indium tin oxide (ITO) nanoparticles, and demonstrates their SEIRA property. Furthermore, the results show that the doping ratio of tin heteroatoms in ITO nanoparticles affects the enhancement factor.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Spectroscopy
Hongye Liu, Qianwen Li, Yan Ma, Siyu Wang, Yanan Wang, Bing Zhao, Lichun Zhao, Ziping Jiang, Lili Xu, Weidong Ruan
Summary: In2O3 nanoparticles with cubic phase and small particle size of 10 nm were synthesized by high temperature pyrolysis method. The structures and properties of In2O3 nanoparticles were characterized using X-ray powder diffraction (XRD), transmission electron microscope (TEM) and other methods. Furthermore, the SERS spectra of In2O3-MBA were discussed, with an enhancement factor (EF) of up to 1.22 x 104. The results show a charge transfer effect between the adsorbed molecules of 4-mercaptobenzoic acid (4-MBA) and the In2O3 nanoparticles substrates, which can be excited by long wavelength energy. This study is beneficial for the development of potential semiconductor SERS substrates based on In2O3 nanoparticles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Materials Science, Multidisciplinary
Lianfei Yao, Xue Lou, Ning Sui, Zhihui Kang, Qiang Zhou, Li Li, Bing Zhao, Han-zhuang Zhang, Jiaqi Zhang, Yinghui Wang
Summary: Halide perovskites have shown potential in light-emitting diodes, lasers, and detectors, and a series of quasi-2D PBA(2)(MAPbBr(3))(n-1)PbBr4 perovskite films have been synthesized to study their optoelectronic properties. The results indicate that the physical behavior and performance of these films are dependent on the layer number (n). Temperature-dependent photoluminescence and amplified spontaneous emission tests reveal the unique characteristics of the perovskite films with different layer numbers.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Wenjun Wang, Zhu Mao, Yanyu Ren, Fanxu Meng, Xiumin Shi, Bing Zhao
Summary: The built-in potential field of the NiO/TiO2 interface in the photodetectors decreases the charge transfer resistance and changes the vibrational frequency of TiO2's phonon modes, which enhances the responsiveness of the photodetectors. Operando Raman spectroscopy has been proven to be a powerful tool for manufacturing highly responsive photodetectors.
CHEMICAL COMMUNICATIONS
(2021)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
