Article
Nanoscience & Nanotechnology
Kun Ge, Lunzhao Yi, Qiyue Wu, Yonghui Li, Hanqiang Zhang, Ying Gu
Summary: A portable surface-enhanced Raman spectroscopy (SERS) substrate based on PbBiO2Br/AuAg hybrid nanoalloys was fabricated for rapid formaldehyde detection. The optimized membrane-based substrate showed better SERS activity for molecules with -SH groups, providing a valid method for on-site monitoring of formaldehyde with high sensitivity and selectivity.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Environmental
Nan Huo, Dan Li, Siqing Zheng, Wei Deng
Summary: This paper presents the design of a smart film for the detection of sulfur dioxide (SO2) using chromogenic and surface-enhanced Raman scattering (SERS) sensors. The film not only allows visual discrimination of SO2, but also provides high sensitivity and accuracy for its detection.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Elumalai Ashok Kumar, Nazar Riswana Barveen, Tzyy-Jiann Wang, Thangavelu Kokulnathan, Yu-Hsu Chang
Summary: Noble-metal/semiconductor-based nanomaterials have achieved high Raman enhancement in SERS sensors, but creating SERS substrates with high sensitivity and reproducibility remains a challenge. The Ag/ZnO SERS substrate, with silver nanospheres decorated on zinc-oxide multipods, demonstrated superior performance in detecting 4-NP and R6G, with detection limits of 1.49 x 10-13 M and 9.99 x 10-12 M, respectively. The strong SERS enhancement is attributed to the synergistic effect of electromagnetic and chemical mechanisms.
MICROCHEMICAL JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Eric Boateng Osei, Liliia Paniushkina, Konrad Wilhelm, Juergen Popp, Irina Nazarenko, Christoph Krafft
Summary: Extracellular vesicles (EVs) ranging in size from 60 to 800 nm were isolated from plasma of control and prostate cancer patients using differential centrifugation and ultrafiltration techniques. Spontaneous Raman and surface-enhanced Raman spectroscopy (SERS) were employed to identify fractions that best discriminate between control and cancer patients, with results showing that EV12 and EV120 fractions provide the most effective separation.
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
Nanoscience & Nanotechnology
Dirk Jonker, Ketki Srivastava, Marta Lafuente, Arturo Susarrey-Arce, Ward van der Stam, Albert van den Berg, Mathieu Odijk, Han J. G. E. Gardeniers
Summary: In this study, gold nanoparticles with a diameter of 67 +/- 6 nm supported by vertically aligned shell-insulated silicon nanocones were formed for ultralow variance SERS. The morphology and optical properties of the substrates were assessed through various characterization techniques. The SERS activity was measured and compared to other lithographically derived assemblies. The low variance of our substrates makes them suitable for many potential SERS applications.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shu Hu, Jingyu Wang, Yue-Jiao Zhang, Bao-Ying Wen, Si-Si Wu, Petar M. Radjenovic, Zhilin Yang, Bin Ren, Jian-Feng Li
Summary: In this study, the shell and structural effect of shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) were investigated. It was found that the field enhancement loss due to the shell could be overcome by optimizing the coupling geometry of the shell-isolated nanoparticles (SHINs), and signal enhancement could be further optimized by altering the aggregation geometries of the nanoparticles.
Article
Chemistry, Analytical
Yuwan Du, Shuaifeng Ji, Qingyang Dong, Jiang Wang, Dianpeng Han, Zhixian Gao
Summary: This study developed an amplification-free viral DNA biosensor-based diagnostic method using the CRISPR/Cas system combined with surface enhanced Raman spectroscopy, enabling rapid and highly sensitive detection of hepatitis B virus (HBV) DNA.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Gary Sean Cooney, David Talaga, Vicky Ury-Thiery, Yann Fichou, Yuhan Huang, Sophie Lecomte, Sebastien Bonhommeau
Summary: In this study, TERS was used to visualize the spatial distribution of adenine, protein secondary structure, and amino acids in single polyadenosine-induced tau fibrils. The findings provide insights into the incorporation of the polyadenosine cofactor in the fibril structure and its interaction with amino acids. TERS proves to be a powerful technique for studying cofactors in individual tau fibrils and their mode of interaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Physics, Multidisciplinary
Tingting Liu, Chuanyu Liu, Jialing Shi, Lingjun Zhang, Xiaonan Sun, Yingzhou Huang
Summary: This study fabricated a 2D silver nanorice film as a SERS substrate using a self-assembly method, demonstrating quantitative detection of molecules on this substrate. The experimental results showed that the 2D plasmonic film had no obvious SERS polarization dependence, with SERS enhancement originating from surface plasmon coupling between nanorices.
Review
Engineering, Environmental
Lifang Xie, Kedong Gong, Yangyang Liu, Liwu Zhang
Summary: Nanoplastics, at sizes smaller than 1000 nm, are found ubiquitously in various environmental media and pose a potential health risk due to their ability to easily enter cells. In this review, we summarize the prevalent analytical techniques for identifying nanoplastics, with a focus on the advantages and disadvantages of surface-enhanced Raman spectroscopy (SERS). We discuss the principles of SERS, advances in nanoplastic detection using SERS, and the application of SERS in real environmental samples. Furthermore, we highlight the importance of efficient SERS substrates and pretreatment methodologies to enable practical nanoplastic detection and identify future research needs in this field.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Shuang Lin, Haoyu Guan, Yuqi Liu, Shinian Huang, Junming Li, Wuliji Hasi, Yizhuo Xu, Jixin Zou, Bin Dong
Summary: Tuning and controlling the plasmon coupling of noble metal nanoparticles are crucial for enhancing their responses in near-field and far-field. A novel heterogeneous plasmonic assembly with a controllable hot spot model was proposed in this work, showing significant enhancement for SERS behavior in point-to-facet hotspots. The binary assemblies of Au NS doping in Au@Ag NCs demonstrate excellent sensitivity and high reproducibility in the identification of ketamine, indicating a new avenue for fabricating plasmonic metal materials with collective LSPR properties and sensitive SERS behavior.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Wannes Peeters, Shuichi Toyouchi, Yasuhiko Fujita, Mathias Wolf, Beatrice Fortuni, Eduard Fron, Tomoko Inose, Johan Hofkens, Takahiko Endo, Yasumitsu Miyata, Hiroshi Uji-i
Summary: Tip-enhanced photoluminescence (TEPL) microscopy overcomes the diffraction-limited background signal by using remote excitation, achieving higher spatial resolution. Two probe designs were evaluated, and spatial heterogeneity was successfully demonstrated on a MoSe2/WSe2 lateral heterostructure.
Article
Chemistry, Analytical
Yongheum Choi, Chang Su Jeon, Kwang Bok Kim, Hyun-Jong Kim, Sung Hyun Pyun, Young Min Park
Summary: In this study, the quantitative detection of dopamine (DA) was achieved using the peak shift in surface-enhanced Raman scattering (SERS) of 4-mercaptophenylboronic acid (4-MPBA) as a result of DA concentration. Ag nanostructures were prepared using gas-flow sputtering, and 4-MPBA was introduced through vapor-based deposition to act as a reporter molecule for bonding with DA. The experimental results showed a gradual peak shift from 1075.6 cm-1 to 1084.7 cm-1 with increasing DA concentration.
Article
Materials Science, Multidisciplinary
Limei Liu, Pablo Martinez Pancorbo, Ting-Hui Xiao, Saya Noguchi, Machiko Marumi, Hiroki Segawa, Siddhant Karhadkar, Julia Gala de Pablo, Kotaro Hiramatsu, Yasutaka Kitahama, Tamitake Itoh, Junle Qu, Kuniharu Takei, Keisuke Goda
Summary: Over the past two decades, wearable sensor technology has experienced significant growth. One recent breakthrough is the development of wearable chemical sensors based on surface-enhanced Raman spectroscopy (SERS), which can universally and noninvasively detect molecular fingerprints. However, these sensors are not scalable due to their complex fabrication process and limited multifunctional sensing capabilities. A highly scalable, wearable SERS sensor based on a low-cost, ultrathin, flexible, stretchable, adhesive, and biointegratable gold nanomesh is demonstrated in this study. It can be worn on any surface and used for label-free, large-scale, in situ sensing of diverse analytes. To showcase its practical utility, the sensor is tested for the detection of sweat biomarkers, drugs of abuse, and microplastics. This wearable SERS sensor represents a significant step towards the generalizability and practicality of wearable sensing technology.
ADVANCED OPTICAL MATERIALS
(2022)