Label free investigation of biomolecules on the nanometer scale using tip-enhanced Raman spectroscopy

2010 ◽  
Author(s):  
Volker Deckert ◽  
Tanja Deckert-Gaudig ◽  
Marc Richter ◽  
Regina Treffer ◽  
Xiumei Lin
Keyword(s):  
Raman Spectroscopy ◽  
Nanometer Scale ◽  
Label Free ◽  
Tip Enhanced Raman Spectroscopy

scholarly journals Nanoscale mapping of newly-synthesised phospholipid molecules in a biological cell using tip-enhanced Raman spectroscopy

2017 ◽  
Vol 53 (16) ◽  
pp. 2451-2454 ◽  
Author(s):  
Naresh Kumar ◽  
Marek M. Drozdz ◽  
Haibo Jiang ◽  
Daniela M. Santos ◽  
David J. Vaux
Keyword(s):  
Raman Spectroscopy ◽  
Biological Cell ◽  
Label Free ◽  
Tip Enhanced Raman Spectroscopy ◽  
First Time ◽  
Non Destructive

Non-destructive & label-free nanoscale mapping of newly-synthesised phospholipid molecules inside a biological cell is demonstrated using tip-enhanced Raman spectroscopy for the first time.

Label-Free Mapping of Osteopontin Adsorption to Calcium Oxalate Monohydrate Crystals by Tip-Enhanced Raman Spectroscopy

2012 ◽  
Vol 134 (41) ◽  
pp. 17076-17082 ◽  
Author(s):  
Nastaran Kazemi-Zanjani ◽  
Honghong Chen ◽  
Harvey A. Goldberg ◽  
Graeme K. Hunter ◽  
Bernd Grohe ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Calcium Oxalate ◽  
Calcium Oxalate Monohydrate ◽  
Label Free ◽  
Tip Enhanced Raman Spectroscopy

Tip-Enhanced Raman Spectroscopy to Distinguish Toxic Oligomers from Aβ1- 42 Fibrils at the Nanometer Scale

2017 ◽  
Vol 129 (7) ◽  
pp. 1797-1800 ◽  
Author(s):  
Sébastien Bonhommeau ◽  
David Talaga ◽  
Julien Hunel ◽  
Christophe Cullin ◽  
Sophie Lecomte
Keyword(s):  
Raman Spectroscopy ◽  
Nanometer Scale ◽  
Tip Enhanced Raman Spectroscopy

Tip-Enhanced Raman Spectroscopy to Distinguish Toxic Oligomers from Aβ1- 42 Fibrils at the Nanometer Scale

2017 ◽  
Vol 56 (7) ◽  
pp. 1771-1774 ◽  
Author(s):  
Sébastien Bonhommeau ◽  
David Talaga ◽  
Julien Hunel ◽  
Christophe Cullin ◽  
Sophie Lecomte
Keyword(s):  
Raman Spectroscopy ◽  
Nanometer Scale ◽  
Tip Enhanced Raman Spectroscopy

scholarly journals Tip-Enhanced Raman Spectroscopy of 2D Semiconductors

2021 ◽  
Author(s):  
Mahfujur Rahaman ◽  
Dietrich R.T. Zahn
Keyword(s):  
Raman Spectroscopy ◽  
Physical Properties ◽  
Spectroscopic Investigation ◽  
Co2 Reduction ◽  
Chemical Imaging ◽  
Label Free ◽  
2D Semiconductors ◽  
Tremendous Progress ◽  
Tip Enhanced Raman Spectroscopy

Two-dimensional (2D) semiconductors are one of the most extensively studied modern materials showing potentials in large spectrum of applications from electronics/optoelectronics to photocatalysis and CO2 reduction. These materials possess astonishing optical, electronic, and mechanical properties, which are different from their bulk counterparts. Due to strong dielectric screening, local heterogeneities such as edges, grain boundaries, defects, strain, doping, chemical bonding, and molecular orientation dictate their physical properties to a great extent. Therefore, there is a growing demand of probing such heterogeneities and their effects on the physical properties of 2D semiconductors on site in a label-free and non-destructive way. Tip-enhanced Raman spectroscopy (TERS), which combines the merits of both scanning probe microscopy and Raman spectroscopy, has experienced tremendous progress since its introduction in the early 2000s and is capable of local spectroscopic investigation with (sub-) nanometer spatial resolution. Introducing this technique to 2D semiconductors not only enables us to understand the effects of local heterogeneities, it can also provide new insights opening the door for novel quantum mechanical applications. This book chapter sheds light on the recent progress of local spectroscopic investigation and chemical imaging of 2D semiconductors using TERS. It also provides a basic discussion of Raman selection rules of 2D semiconductors important to understand TERS results. Finally, a brief outlook regarding the potential of TERS in the field of 2D semiconductors is provided.

scholarly journals Revealing the local crystallinity of single silicon core–shell nanowires using tip-enhanced Raman spectroscopy

2020 ◽  
Vol 11 ◽  
pp. 1147-1156 ◽  
Author(s):  
Marius van den Berg ◽  
Ardeshir Moeinian ◽  
Arne Kobald ◽  
Yu-Ting Chen ◽  
Anke Horneber ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Structural Properties ◽  
Silicon Nanowires ◽  
Optical Resolution ◽  
Chemical Vapor ◽  
Nanometer Scale ◽  
Core Shell ◽  
Polarization Angle ◽  
Amorphous Si ◽  
Tip Enhanced Raman Spectroscopy

Tip-enhanced Raman spectroscopy is combined with polarization angle-resolved spectroscopy to investigate the nanometer-scale structural properties of core–shell silicon nanowires (crystalline Si core and amorphous Si shell), which were synthesized by platinum-catalyzed vapor–liquid–solid growth and silicon overcoating by thermal chemical vapor deposition. Local changes in the fraction of crystallinity in these silicon nanowires are characterized at an optical resolution of about 300 nm. Furthermore, we are able to resolve the variations in the intensity ratios of the Raman peaks of crystalline Si and amorphous Si by applying tip-enhanced Raman spectroscopy, at sample positions being 8 nm apart. The local crystallinity revealed using confocal Raman spectroscopy and tip-enhanced Raman spectroscopy agrees well with the high-resolution transmission electron microscopy images. Additionally, the polarizations of Raman scattering and the photoluminescence signal from the tip–sample nanogap are explored by combining polarization angle-resolved emission spectroscopy with tip-enhanced optical spectroscopy. Our work demonstrates the significant potential of resolving local structural properties of Si nanomaterials at the sub-10 nanometer scale using tip-enhanced Raman techniques.

Probing the Plasmon-Driven Suzuki-Miyaura Coupling Reactions with Cargo-TERS towards Tailored Catalyzation

Nanoscale ◽  
2021 ◽  
Author(s):  
Zhandong Li ◽  
Dmitry Kurouski
Keyword(s):  
Raman Spectroscopy ◽  
Analytical Approach ◽  
Coupling Reactions ◽  
Label Free ◽  
In Situ Assessment ◽  
Molecular Reactivity ◽  
Tip Enhanced Raman Spectroscopy

We present a label-free approach that is based on tip-enhanced Raman spectroscopy (TERS) for a direct in-situ assessment of molecular reactivity in plasmon-driven reactions. Using this analytical approach, named cargo-TERS,...

Surface-and tip-enhanced Raman spectroscopy of silicon

2008 ◽  
Author(s):  
K. J. Yi ◽  
X. N. He ◽  
W. Q. Yang ◽  
Y. S. Zhou ◽  
W. Xiong ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Tip Enhanced Raman Spectroscopy
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