scholarly journals Vibrational spectroscopy of metal carbonyls for bio-imaging and -sensing

The Analyst ◽  
2016 ◽  
Vol 141 (5) ◽  
pp. 1569-1586 ◽  
Author(s):  
Zhiyong Lam ◽  
Kien Voon Kong ◽  
Malini Olivo ◽  
Weng Kee Leong
Keyword(s):  
Raman Spectroscopy ◽  
Transition Metal ◽  
Functional Groups ◽  
Vibrational Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Metal Carbonyls ◽  
Surface Enhanced ◽  
Transition Metal Carbonyls ◽  
Surface Enhanced Raman ◽  
Bio Imaging

Transition metal carbonyls exhibit strong CO absorptions in the 2200–1800 cm−1 region, which is free of interference from other functional groups. This feature has led to their applications in bio-imaging and -sensing, in particular through mid-IR, Raman and more recently, surface-enhanced Raman spectroscopy (SERS).

Hollow transition metal hydroxide octahedral microcages for single particle surface-enhanced Raman spectroscopy

2019 ◽  
Vol 6 (9) ◽  
pp. 2318-2324 ◽  
Author(s):  
Mansha Gao ◽  
Peng Miao ◽  
Xijiang Han ◽  
Cheng Sun ◽  
Yan Ma ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Transition Metal ◽  
Single Particle ◽  
Particle Surface ◽  
Surface Enhanced Raman Spectroscopy ◽  
Metal Hydroxide ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Dye Molecule

Single M(OH)x (M = Fe, Co, Ni) hollow octahedral microcage particles are explored as novel SERS-active substrates for sensitive dye molecule detection.

scholarly journals Graphene/MoS2 Nanohybrid for Biosensors

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 518
Author(s):  
Jinho Yoon ◽  
Joungpyo Lim ◽  
Minkyu Shin ◽  
Sang-Nam Lee ◽  
Jeong-Woo Choi
Keyword(s):  
Raman Spectroscopy ◽  
Transition Metal ◽  
Surface Enhanced Raman Spectroscopy ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Interdisciplinary Knowledge ◽  
Nanohybrid Materials ◽  
Biomedical Field ◽  
Scientific Fields

Graphene has been studied a lot in different scientific fields because of its unique properties, including its superior conductivity, plasmonic property, and biocompatibility. More recently, transition metal dicharcogenide (TMD) nanomaterials, beyond graphene, have been widely researched due to their exceptional properties. Among the various TMD nanomaterials, molybdenum disulfide (MoS2) has attracted attention in biological fields due to its excellent biocompatibility and simple steps for synthesis. Accordingly, graphene and MoS2 have been widely studied to be applied in the development of biosensors. Moreover, nanohybrid materials developed by hybridization of graphene and MoS2 have a huge potential for developing various types of outstanding biosensors, like electrochemical-, optical-, or surface-enhanced Raman spectroscopy (SERS)-based biosensors. In this review, we will focus on materials such as graphene and MoS2. Next, their application will be discussed with regard to the development of highly sensitive biosensors based on graphene, MoS2, and nanohybrid materials composed of graphene and MoS2. In conclusion, this review will provide interdisciplinary knowledge about graphene/MoS2 nanohybrids to be applied to the biomedical field, particularly biosensors.

Nanoscale tracking plasmon-driven photocatalysis in individual nanojunctions by vibrational spectroscopy

Nanoscale ◽  
2018 ◽  
Vol 10 (46) ◽  
pp. 21742-21747 ◽  
Author(s):  
Kun Zhang ◽  
Yujie Liu ◽  
Jingjing Zhao ◽  
Baohong Liu
Keyword(s):  
Raman Spectroscopy ◽  
Vibrational Spectroscopy ◽  
Hot Spots ◽  
Digital Simulation ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Surface-enhanced Raman spectroscopy combined with digital simulation was proposed to explore the influence of plasmonic hot spots on photocatalysis.

Surface-Enhanced Raman Spectroscopy of CrO3/H2SO4-Etched Polyethylene Films

1989 ◽  
Vol 43 (2) ◽  
pp. 226-229 ◽  
Author(s):  
Lorraine M. Siperko
Keyword(s):  
Raman Spectroscopy ◽  
Sulfuric Acid ◽  
Functional Groups ◽  
Surface Enhanced Raman Spectroscopy ◽  
Polymer Chemistry ◽  
Polyethylene Films ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sulfate Species ◽  
Thin Polyethylene

The effects of chromic/sulfuric acid etchant on thin polyethylene films are being studied by Raman spectroscopy. The functional groups on the surface of the etched films were found to differ from those present in the bulk. Cr-O bands appeared in both the bulk and SERS spectra, and sulfate species were detected on the surface only. The ability to differentiate between the surface and bulk polymer chemistry of CrO3/H2SO4-etched polyethylene using surface-enhanced Raman spectroscopy is demonstrated.

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