Article
Chemistry, Analytical
Shuyun Bi, Rui Zhao, Yue Yuan, Xu Li, Di Shao
Summary: A new SERS method for detecting amprolium HCl was established on a gold core and silver shell substrate, producing sharp Raman signal enhancement. The method showed a good linear relationship and a LOD of 0.48 nmol L-1 after optimization.
MICROCHEMICAL JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Yongxing Lin, Liang Wang, Haibao Zhang, Linfeng Wu, Huibo Fan, Xianglan Liu, Ruobing Zheng, Xingyou Tian, Hui He
Summary: Three-dimensional Au network films with flexibility and transferability were fabricated based on sputtering deposition onto electrospun nanofibers as a template. The structured film exhibits significant surface-enhanced Raman scattering (SERS) activity and has great potential in in situ detection of trace organic pollutants on a solid surface.
Article
Materials Science, Multidisciplinary
Xiaoxu Zhang, Chengxu Song, Shilun Li, Liang Chen, Jing Xu, Wei Liu, Shangshen Feng
Summary: The effective regulation of Au nanosphere arrays' absorption properties and enhancement of its SERS performance are significant for optical sensing applications. This paper synthesizes monolayer and bilayer Au nanosphere arrays using the polyol synthesis method. Graphene coating on these arrays enhances their absorption peak intensities by up to 32.92% and shifts the resonance peaks by up to 17 nm. The Raman signals of graphene-covered arrays are significantly stronger, resulting in a detection sensitivity of 10-6 M for R6G molecules.
Article
Spectroscopy
Ya-Min Shen, Meng-Yue Gao, Xu Chen, Ai-Guo Shen, Ji-Ming Hu
Summary: The multiplex surface-enhanced Raman scattering (SERS) technique allows for quantitative discrimination of two subtypes of breast cancer cells by simultaneously identifying the relative expression levels of biomarkers on the cell surface. This approach provides a good example of ratiometric detection in biosystems without interference.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Applied
Malgorzata Skwierczynska, Przemyslaw Wozny, Marcin Runowski, Piotr Kulpinski, Stefan Lis
Summary: Cellulose has the potential to be a promising material for surface-enhanced Raman scattering (SERS) substrates due to its wide availability, low cost, ease of fabrication, high flexibility, and low optical activity. This study demonstrates the development of a cellulose-based substrate that owes its SERS activity to the presence of gold nanorods in its internal structure, ensuring superior stability and reproducibility. The substrate exhibits plasmonic activity and provides easy and reproducible detection of different analytes via the SERS technique.
CARBOHYDRATE POLYMERS
(2022)
Article
Chemistry, Multidisciplinary
Yuansen Tang, Akiyoshi Kuzume, Kimihisa Yamamoto
Summary: By systematically fabricating homogeneous PVP-stabilized Au nanostars and controlling their size and apex shape with the molecular weight of PVP, a significant enhancement in sensitivity of SERS measurements was achieved, reaching 26 times higher than that with conventional Au nanoparticles with a diameter of 55 nm.
Article
Food Science & Technology
Jing Li, Jia Xu, Yi Pan, Yongzhi Zhu, Yuanfeng Wang, Shouhui Chen, Xinlin Wei
Summary: A surface-enhanced Raman scattering based lateral flow assay (SERS-LFA) method was developed for rapid and highly sensitive detection of casein and alpha-lactalbumin allergens in cow's milk. The method showed high specificity and sensitivity, and has the potential to be a unique allergen detection method.
FOOD SCIENCE AND HUMAN WELLNESS
(2023)
Article
Chemistry, Analytical
Jianrong Cao, Yali Huang, Ziyang Shang, Xin Liu, Chengyin Lu, Hongping Chen, Pei Liang, Guicen Ma
Summary: Three-dimensional (3D) supraparticles consisting of core-shell Au@Ag nanoparticles were successfully prepared via simple evaporation assembly. The supraparticles with non-close packed structure created numerous 3D hotspots, resulting in significantly enhanced surface-enhanced Raman scattering (SERS) performance. Compared to 3D multilayered structures assembled by Au@Ag nanoparticles, the supraparticles exhibited eight times higher enhancement for SERS behavior. Moreover, the supraparticles demonstrated excellent sensitivity and high reproducibility in detecting pesticides and antibiotics in both organic and aqueous solvents.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Lin Guo, Zhu Mao, Sila Jin, Lin Zhu, Junqi Zhao, Bing Zhao, Young Mee Jung
Summary: Surface-enhanced Raman scattering (SERS) is a powerful tool for studying charge transfer processes, especially when analyzing relative band strengths in core-shell structures involving nanorods with different L/D ratios. Adjusting the surface plasmon resonance (SPR) absorption bands by tuning the L/D ratios of the nanorod cores can directly impact the charge transfer process, and the specific surface area of the nanorods plays a crucial role in this interaction.
Article
Chemistry, Multidisciplinary
Nuno M. Figueiredo, Ricardo Serra, Albano Cavaleiro
Summary: In this study, gold (Au) nanolayers were deposited on glass substrates and subjected to thermal annealing to promote the embedding of Au nanoparticles in the glass, improving adhesion and stability. The embedded nanostructures showed strong optical properties, with reflectivity and optical scattering dependent on nanoparticle size/shape distributions. Robust LSPR sensors with refractive index sensitivity values were successfully demonstrated for potential applications in simple excitation/detection schemes.
Article
Nanoscience & Nanotechnology
Venkatarao Selamneni, Abhishek Mukherjee, Harini Raghavan, P. Thanga Gomathi, Chandra Sekhar Reddy Kolli, Subhradeep Pal, Arnab Hazra, Parikshit Sahatiya
Summary: The study demonstrated a flexible and high-performance broadband plasmonic photodetector by integrating gold nanoparticles on 2D ReS2 nanosheets, showing significantly enhanced photo detection performance. The device exhibited good photoresponsivity in the visible and near-infrared regions, with a response speed of approximately 200 ms.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Analytical
Zhaoxian Chen, Anping Liu, Xiumei Zhang, Jiawei Jiao, Yuan Yuan, Yingzhou Huang, Sheng Yan
Summary: Combined with microfluidics, surface-enhanced Raman spectroscopy (SERS) has great potential in sensitive online detection. This study focuses on the design and optimization of plasmonic enhanced structures in microfluidics for SERS detection. The results show that the ultrasonic times of Mxenes and the concentration of Au3+ play important roles in the sensitivity of SERS detection.
Article
Agriculture, Multidisciplinary
Yinjuan Xu, Zhao Jin, Yuan Zhao
Summary: It is important to develop a sensitive and accurate method for monitoring staphylococcal enterotoxin C (SEC) in food, as it poses a serious risk to human health. In this study, a surface-enhanced Raman scattering (SERS) aptasensor was developed for the quantitative detection of SEC. The use of solid gold-silver Janus@gold nanoparticles (Au-Ag Janus@Au NPs) with intrinsic and enhanced SERS activity allowed for sensitive and reliable detection of SEC, with a limit of detection as low as 0.55 pg/mL. This research expands the application prospects of label-free SERS detection probes in complex systems for food safety monitoring.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Dingyu Song, Tianxing Wang, Lin Zhuang
Summary: Surface-enhanced Raman scattering (SERS) technology is important in spectroscopy. The combination of spin-coating, surface modification, and in situ reduction methods was used to prepare a photonic crystal array of SiO2@Au core-shell nanoparticles as a SERS substrate (SiO2@Au NP array). Compared to a Au-SiO2 NP array prepared using doping methods, the SiO2@Au NP array showed better SERS properties and reproducibility. The approach provides a new option for SERS substrate preparation and has potential applications in trace contaminant detection and nondestructive testing.
Article
Chemistry, Multidisciplinary
Gitchka G. Tsutsumanova, Neno D. Todorov, Stoyan C. Russev, Miroslav V. Abrashev, Victor G. Ivanov, Alexey V. Lukoyanov
Summary: Micro- and nanoflowers, composed of particles with high surface-to-volume ratio, have promising applications in various fields. Utilizing silver flowerlike structures as SERS substrates has shown significant Raman enhancement effects.
Article
Chemistry, Physical
V. Poornima Parvathi, R. Parimaladevi, Vasant Sathe, M. Umadevi
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Chemistry, Physical
V. Poornima Parvathi, R. Parimaladevi, Vasant Sathe, M. Umadevi
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
P. M. Anjana, M. R. Bindhu, M. Umadevi, R. B. Rakhi
APPLIED SURFACE SCIENCE
(2019)
Article
Engineering, Chemical
Bhaviya R. Raj, M. Umadevi, R. Parimaladevi
PARTICULATE SCIENCE AND TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
P. Senthilkumar, D. Arockiya Jency, T. Kavinkumar, D. Dhayanithi, S. Dhanuskodi, M. Umadevi, S. Manivannan, N. V. Giridharan, V. Thiagarajan, M. Sriramkumar, K. Jothivenkatachalam
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Materials Science, Biomaterials
Poornima Parvathi Veerabaghu, Parimaladevi Ramasamy, Vasanth Sathe, Anbarasan Ramasamy, Umadevi Mahalingam
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
(2019)
Article
Biochemistry & Molecular Biology
C. Vijilvani, M. R. Bindhu, F. C. Frincy, Mohamad S. AlSalhi, S. Sabitha, K. Saravanakumar, Sandhanasamy Devanesan, M. Umadevi, Mamduh J. Aljaafreh, Muhammad Atif
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2020)
Article
Materials Science, Multidisciplinary
Arockia D. Jency, K. Sathyavathi, Umadevi Mahalingam, Parimaladevi Ramasamy
Article
Materials Science, Multidisciplinary
V. Poornima Parvathi, M. Umadevi, R. Sasikala, R. Parimaladevi, V. Ragavendran, J. Mayandi, G. V. Sathe
Article
Polymer Science
Ramaraj Bhaviya Raj, Mahalingam Umadevi, Ramasamy Parimaladevi
Summary: Efficient, strong and cost-effective nanoparticles with inhibitory activities are in high demand. Synthesis of ZnO/Ag NCs through doping strategies resulted in materials with small particle size, high surface area, and excellent photocatalytic and antibacterial properties, making them promising for practical applications.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Chemistry, Physical
A'Lester C. Allen, Mekedlawit Efrem, Umadevi Mahalingam, Melissa Guarino-Hotz, Alejandro R. Foley, Jevgenij A. Raskatov, Chengyu Song, Sarah A. Lindley, Jing Li, Bin Chen, Jin Z. Zhang
Summary: Hollow gold nanospheres were used as templates for the growth of multibranched hollow gold nanostars, with control of the localized surface plasmon resonance achieved through manipulation of core size and spike length. Conjugation of A beta to HNS enabled detection through vibrational modes, demonstrating the potential for rapid disease detection.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Environmental Sciences
Aarthi Avadaiappan, Smonia Joe Princy Soosai Antony, Bindhu Franci, Umadevi Mahalingam, Parimaladevi Ramasamy, Hentry Conchalish, Vasant Sath
Summary: Mismanagement of obsolete solid waste can have a damaging impact on the environment, particularly in terms of open trash disposal contaminating water bodies. The waste management act aims to prevent harmful effects on living organisms by implementing waste prevention, processing, and disposal principles. Surface-enhanced Raman scattering (SERS) technology enhances the detection of environmental pollutants, such as hazardous chemicals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Bhaviya Raj Ramaraj, Umadevi Mahalingam, Parimaladevi Ramasamy, Joshua M. Pearce, Jeyanthinath Mayandi, Anuratha Mahalingam
Summary: Textile industries play an important role in a country's economy, but they consume large amounts of water and produce volumes of wastewater. This study evaluates the use of eco-friendly and low-cost zinc oxide/copper oxide nanocomposites for degrading organic pollutants and antibacterial activity. The presence of CuO in the nanocomposites enhances their catalytic properties, and they also exhibit high antibacterial activity. The experimental characteristics of the nanocomposites can be explained by the combination of electronic band structure due to size effect and tuning metal oxide proportions.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Polymer Science
A. Aarthi, M. Umadevi, R. Parimaladevi, G. V. Sathe, S. Arumugam, P. Sivaprakash
Summary: The study reports the surface enhanced Raman scattering (SERS), photocatalytic, and antibacterial activities of Fe3O4/Ag magnetic nano particles. The synthesized Fe3O4/Ag MNP is characterized by various techniques and shows promising properties for potential applications in environmental pollution, human medicine, and contaminated drinking water. The presence of Fe3O4 NPs improves the catalytic degradation efficiency of Ag NPs.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Umadevi Mahalingam, Poornima P. Veerabaghu, Sangari Mayavan, Parimaladevi Ramasamy
