Article
Chemistry, Analytical
Yuqi Liu, Haoyu Guan, Shuang Lin, Haoyu Dong, Wuliji Hasi, Bin Dong
Summary: In this work, a robust and effective extraction filtration strategy was proposed to improve the purification of Ag nanocubes (NCs) for the construction of efficient nanosensors. The approach successfully retained impurities and achieved high purity Ag NCs through the optimization of membrane pore size and layer numbers. The purified Ag NCs were used to construct a sensitive SERS plamonics substrate, which demonstrated successful identification of malachite green in aquaculture water.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Swarna Ganesh, Krishnan Venkatakrishnan, Bo Tan
Summary: The ability of cancer to metastasize to distant organs is a urgent problem in clinical field. Current imaging techniques are ineffective for early detection of metastatic cancer. Molecular expression profiles are not suitable for early diagnosis and prediction of cancer metastasis due to tumor-specificity and heterogeneity. Here, a self-functionalised nanosensor has been created to detect metastasis-initiating cells (MICs) that can serve as a universal marker for diagnosis, prediction and prognosis of tumor metastasis. This study is the first to design a probe that can provide both the diagnostic and predictive signature of cancer metastasis at a single cellular stage, which holds immense potential in early diagnosis and patient prognosis improvement.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Tuhina Banerjee, Nilamben Panchal, Carissa Sutton, Rebekah Elliott, Truptiben Patel, Kajal Kajal, Eniola Arogunyo, Neelima Koti, Santimukul Santra
Summary: Frequent outbreaks of food-borne pathogens, particularly E. coli O157:H7, have significant effects on human health and the agricultural economy. Current detection methods for E. coli O157:H7 are sensitive but time-consuming and require extensive sample processing. To address these limitations, a novel magneto-plasmonic nanosensor (MPnS) was developed by integrating surface plasmon resonance (SPR) properties with spin-spin magnetic relaxation (T2 MR) technology. The MPnS exhibited rapid and ultrasensitive detection of E. coli O157:H7 using SPR, T2 MR, and colorimetric readout, with no cross-reactivity. It holds great potential for the detection of other foodborne pathogens, offering a simple and timely approach.
Article
Materials Science, Multidisciplinary
Vahid Eskandari, Azadeh Kordzadeh, Leila Zeinalizad, Hossein Sahbafar, Hossna Aghanouri, Amin Hadi, Sajad Ghaderi
Summary: Surface-Enhanced Raman Spectroscopy (SERS) is used to detect atrazine pesticide by fabricating SERS plasmonic substrates (SPS) using silver nanoparticles coated on glass fiber substrates. The detection limit of SPS for atrazine pesticide is 10(-12) M, and the molecular interactions between atrazine and silver nanoparticles are analyzed using quantum mechanics calculation and molecular dynamics simulation.
Review
Environmental Sciences
Sintayehu Leshe Kitaw, Yihenew Simegniew Birhan, Hsieh-Chih Tsai
Summary: Surface-enhanced Raman scattering spectroscopy (SERS) is a powerful vibrational spectroscopy technique that utilizes the inelastic scattering of photons by molecules. It has unique properties such as ultra-sensitivity, selectivity, non-destructivity, speed, and fingerprinting properties, making it widely used in sample analysis and plasmonic mechanistic studies. However, the high cost and low reproducibility of SERS signals limit its practical applications. The development of multifunctional, stable, and reusable nano-engineered SERS substrates provides a feasible solution to overcome these limitations.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Xiao-Lan Wei, Lan Jiang, Qin-Ling Shi, Zhi-Hong Mo
Summary: A novel fingerprinting platform for multiplex detection of flavor molecules in Baijiu was developed using a SERS nanosensor array combined with machine learning. The SERS sensors, made of core-shell Fe3O4@Ag nanoparticles modified with different molecules, interacted with flavors, resulting in changes in their spectra. The Raman spectra of the nanosensor array in contact with the sample were concatenated into a single SERS super-spectrum, which represented the flavor fingerprint and was recognized by machine learning. This chemical fingerprinting platform showed high accuracy, a wide linear detection range, and low limits of detection for ten typical flavors in Baijiu. It also achieved satisfactory accuracy and precision for the quantification of specific flavors in different types of Baijiu samples. Compared to existing techniques, this platform is easy to use, highly sensitive, and capable of multiplex detection.
Article
Chemistry, Physical
Sunghee Lee, Jungwoo Kim, Kyungnae Baek, Nam Hoon Kim, Jerome K. Hyun, So-Jung Park, Haemi Lee
Summary: A bimodal imaging method was developed to spatially resolve and correlate SERS and Mie scattering signals. By examining different types of nanoparticle assemblies, distinct behaviors between intra- and interparticle nanogaps were observed. The study demonstrated the potential of this dual-imaging approach for improving the reliability of SERS measurements.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Review
Chemistry, Multidisciplinary
Ziwei Ye, Chunchun Li, Qinglu Chen, Yikai Xu, Steven E. J. Bell
Summary: Self-assembly of plasmonic nanoparticles at water-oil interfaces is a cost-effective and efficient method for creating highly plasmonically active materials, which can be used for strong SERS enhancement. Various methods have been developed to induce self-assembly and fine-tune surface chemistry, but only some are compatible with SERS research, where ensuring unimpeded access of target molecules to the active surface is crucial.
Article
Physics, Applied
Mengke Ren, Ran Li, Junqiao Wang, Chunzhen Fan, Pei Ding, Yan Li, Jinna He
Summary: This paper theoretically investigates the optical properties of a T-shaped dimer (TD) nanostructure and a TD with nanowire loads (TD/NL) nanostructure. By depositing the NLs around the TD, the optical property of the TD is significantly modified, resulting in a stronger electric field enhancement and Fano resonance. The Fano resonance in TD/NL nanostructure reveals a narrow spectral linewidth and high quality factor, which is advantageous for optical refractive index sensors with high sensitivity.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Jeongwon Kim, Sungwoo Lee, Jiwoong Son, Jieun Kim, Hajir Hilal, Minsun Park, Insub Jung, Jwa-Min Nam, Sungho Park
Summary: Rational design of plasmonic colloidal assemblies via bottom-up synthesis is challenging but can demonstrate unprecedented optical properties that are strongly related to the shape and spatial arrangement of the assembly. In this study, plasmonic cyclic Au nanosphere hexamers (PCHs) were successfully synthesized and showed excellent performance in single-particle surface-enhanced Raman scattering signals.
Article
Chemistry, Analytical
Menbere Leul Mekonnen, Yitayal Admassu Workie, Wei-Nien Su, Bing Joe Hwang
Summary: This review discusses the fabrication of low-cost, flexible SERS substrates using paper, highlighting its advantages and methods. It evaluates the pros and cons of different fabrication methods, and explores ways to improve substrate performance and obtain additional analytical functionalities. Finally, it also suggests opportunities and challenges in realizing a low-cost commercial plasmonic paper substrate.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Zohre Salehnezhad, Mohammad Soroosh, Ali Farmani
Summary: In this study, a sensitive biosensor for biomolecule detection was designed using a Kretschmann structure with a graphene-MoS2 hybrid layer. By incorporating a silicon layer, the nanosensor achieved enhanced sensitivity. This was attributed to the strong light-matter interaction between graphene and the semiconductor layer. The addition of an extra silicon layer and variation in the active metal led to a sensitivity of 192 degrees /RIU at a wavelength of 670 nm.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Bisweswar Patra, Bijesh Kafle, Terefe. G. G. Habteyes
Summary: The interaction between nanocavity plasmons and molecular vibrations can be tailored for sensing and photocatalytic applications. In this study, laser-plasmon detuning dependent plasmon resonance linewidth broadening is observed, indicating energy transfer from the plasmon field to vibrational modes. The experimental results suggest that molecular optomechanics coupling can create hybrid properties based on interactions between molecular oscillators and nanocavity electromagnetic optical modes.
Article
Chemistry, Multidisciplinary
Nivedita Pan, Neha Bhattacharyya, Amrita Banerjee, Pritam Biswas, Lopamudra Roy, Arka Chatterjee, Rama Bhattacharjee, Soumendra Singh, Saleh A. Ahmed, Arpita Chattopadhyay, Mala Mitra, Samir Kumar Pal
Summary: We report a completely portable colorimetric prototype device for the selective monitoring of lead (Pb) pollution, mainly in air. This device relies on analyzing the colorimetric assays on paper strips by measuring the retroreflective information. Our study found that citrate-functionalized silver nanoparticles (AgNPs) embedded in cellulose paper strips can be used to monitor changes in lead concentration by measuring the LSPR bands in the blue and green regions. This research provides a low-cost field-deployable technique for environmental lead sensing, opening up new perspectives for future advancement in paper-based sensing.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xiaofei Xiao, Raymond Gillibert, Antonino Foti, Pierre-Eugene Coulon, Christian Ulysse, Tadzio Levato, Stefan A. . Maier, Vincenzo Giannini, Pietro Giuseppe Gucciardi, Giancarlo Rizza
Summary: Surface-enhanced Raman optical activity (SEROA) has been extensively studied for its ability to directly probe the stereochemistry and molecular structure. This study presents a strategy for achieving a similar effect by coupling optically inactive molecules with the chiral plasmonic response of metasurfaces, resulting in a surface-enhanced Raman polarization rotation effect. This technique extends the potential of Raman optical activity to inactive molecules and enhances the sensitivity performances of surface-enhanced Raman spectroscopy, without the heating issue present in traditional plasmonic-enhanced ROA techniques.
Article
Chemistry, Multidisciplinary
Yukun Gao, Tingting You, Nan Yang, Chenmeng Zhang, Penggang Yin
ADVANCED MATERIALS INTERFACES
(2019)
Article
Physics, Multidisciplinary
Pei Yuan, Xiao-Guang Zhang, Jun-Ming An, Peng-Gang Yin, Yue Wang, Yuan-Da Wu
CHINESE PHYSICS LETTERS
(2019)
Article
Chemistry, Inorganic & Nuclear
Yukun Gao, Penggang Yin
INORGANIC CHEMISTRY
(2019)
Article
Spectroscopy
Sichen Lu, Tingting You, Yukun Gao, Nan Yang, Chenmeng Zhang, Penggang Yin
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2019)
Article
Metallurgy & Metallurgical Engineering
Wang Xue-feng, Wang Yi-jie, Wen Shu-ming, Yin Peng-gang
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2019)
Article
Chemistry, Multidisciplinary
Tian-Yu Sun, Kai Chen, Changyuan Zhang, Tingting You, Penggang Yin
CHEMISTRY-AN ASIAN JOURNAL
(2019)
Article
Chemistry, Applied
Chenmeng Zhang, Tingting You, Nan Yang, Yukun Gao, Li Jiang, Penggang Yin
Article
Optics
C. L. Heng, W. Xiang, W. Y. Su, Y. K. Gao, P. G. Yin, T. G. Finstad
JOURNAL OF LUMINESCENCE
(2019)
Article
Spectroscopy
Ting-Ting You, Nan Yang, Ying-Qi Shu, Peng-Gang Yin
JOURNAL OF RAMAN SPECTROSCOPY
(2019)
Article
Materials Science, Composites
Benliang Liang, Yingqi Shu, Pan Wan, Hewei Zhao, Shaohua Dong, Weichang Hao, Penggang Yin
COMPOSITES SCIENCE AND TECHNOLOGY
(2019)
Article
Chemistry, Physical
Pengfei Wu, Tingting You, Qingyuan Ren, Hongyan Xi, Qingqing Liu, Fengjuan Qin, Hongfei Gu, Yu Wang, Wensheng Yan, Yukun Gao, Wenxing Chen, Penggang Yin
Summary: Interface regulation plays a key role in the electrochemical performance for biosensors. In this study, a strongly coupled 1T phase molybdenum sulfide (1T-MoS2)/MXene hybrid was designed through interface electronic engineering to construct an efficient electrocatalytic biomimetic sensor. Experimental and theoretical results showed that the modified electrode exhibited ultra high sensitivity and low detection limit.
Article
Chemistry, Multidisciplinary
Hongfei Gu, Jiani Li, Xiangfu Niu, Jie Lin, Li-wei Chen, Zedong Zhang, Ziqian Shi, Zhiyi Sun, Qingqing Liu, Peng Zhang, Wensheng Yan, Yu Wang, Liang Zhang, Pengfei Li, Xinyuan Li, Dingsheng Wang, Penggang Yin, Wenxing Chen
Summary: In this study, an asymmetrically coordinated p-block antimony single-atom catalyst immobilized on nitrogen-doped Ti3C2Tx was designed for electrochemical nitrogen reduction reaction (eNRR). The catalyst exhibited ultrahigh ammonia yield and excellent Faradaic efficiency under mild conditions, and the mechanism of catalysis was explained through experimental and theoretical calculations.
Article
Materials Science, Multidisciplinary
Niu Pan, Jun Tian, Ziqian Shi, Wen Zhang, Yukun Gao, Tingting You, Penggang Yin
Summary: This study proposes a method for high-sensitivity detection without direct contact between the probe molecule and the noble metal layer by constructing an all-inorganic perovskite CsPbIBr2 film on the surface of a silver nanofilm for surface-enhanced Raman scattering applications. The interaction and enhancement mechanism between the components were discussed, providing a lower detection limit for the analysis of p-mercaptobenzoic acid and rhodamine. This research is important for understanding charge transfer in nanocomposite substrates, expanding the class of SERS substrates, and providing a wide range of applications and platforms in various fields.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Yukun Gao, Nan Yang, Sichen Lu, Tingting You, Penggang Yin
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
Article
Chemistry, Physical
Xin Wu, Liqiang Xie, Kebin Lin, Jianxun Lu, Kexiang Wang, Wenjing Feng, Bingbing Fan, Penggang Yin, Zhanhua Wei
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
