scholarly journals Nano-Scale Characterization of Surface Enhanced Raman Spectroscopic Substrates

2012 ◽  
Vol 41 ◽  
pp. 867-873 ◽  
Author(s):  
A.R.M. Radzol ◽  
Khuan Y. Lee ◽  
W. Mansor ◽  
S.R. Yahaya
Keyword(s):  
Raman Spectroscopic ◽  
Nano Scale ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Scale Characterization

scholarly journals Preparation and Characterization of Perforated SERS Active Array for Particle Trapping and Sensitive Molecular Analysis

Biosensors ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 93 ◽  
Author(s):  
István Rigó ◽  
Miklós Veres ◽  
Tamás Váczi ◽  
Eszter Holczer ◽  
Orsolya Hakkel ◽  
...  
Keyword(s):  
Molecular Analysis ◽  
Silicon Surface ◽  
3D Structure ◽  
Raman Spectroscopic ◽  
Cell Trapping ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Flow Through

A gold-coated array of flow-through inverse pyramids applicable as substrate for entrapment and immobilization of micro-objects and for surface enhanced Raman spectroscopic measurements was fabricated using bulk micromachining techniques from silicon. Surface morphology, optical reflectance, immobilization properties, and surface enhanced Raman amplification of the array were modelled and characterized. It was found that the special perforated periodic 3D structure can be used for parallel particle and cell trapping and highly sensitive molecular analysis of the immobilized objects.

scholarly journals Identifying Brazilwood’s Marker Component, Urolithin C, in Historical Textiles by Surface-Enhanced Raman Spectroscopy

Heritage ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 1415-1428
Author(s):  
Brenda Doherty ◽  
Ilaria Degano ◽  
Aldo Romani ◽  
Catherine Higgitt ◽  
David Peggie ◽  
...  
Keyword(s):  
Surface Enhanced Raman Spectroscopy ◽  
South American Species ◽  
Diagnostic Features ◽  
Raman Spectroscopic ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Subsequent Exposure ◽  
Analytical Approaches ◽  
Dyes And Pigments

The fugitive nature of the colorants obtained from sappanwood (Caesalpinia sappan L.) or the South American species commonly known as ‘brazilwoods’ (including other Caesalpinia species and Paubrasilia echinata (Lam.)) makes the identification of brazilwood dyes and pigments in historic artefacts analytically challenging. This difficulty has been somewhat alleviated recently by the recognition and structural elucidation of a relatively stable marker component found in certain brazilwood dyes and pigments—the benzochromenone metabolite urolithin C. This new understanding creates an ideal opportunity to explore the possibilities for urolithin C’s localization and identification in historical artefacts using a variety of analytical approaches. Specifically, in this work, micro-destructive surface-enhanced Raman spectroscopic methods following a one-sample two-step (direct application of the colloid and then subsequent exposure of the same sample to HF before reapplication of the colloid) approach are utilized for the examination of four historical brazilwood dyed textiles with the results confirmed via HPLC-DAD analysis. It is shown that characterization of reference urolithin C is possible, and diagnostic features of this molecule can also be traced in faded historical linen, silk and wool textiles, even in the presence of minor quantities of flavonoid, indigoid and tannin components. The exploitation of the same micro-sample through a series of SERS analyses affords a fuller potential for confirming the characterization of this species.

scholarly journals Surface enhanced Raman spectroscopic monitor of P. acnes lipid hydrolysis in vitro

1998 ◽  
Vol 39 (9) ◽  
pp. 1896-1899
Author(s):  
Millicent K. Weldon ◽  
Michael D. Morris ◽  
A.B. Harris ◽  
Janice K. Stoll
Keyword(s):  
Lipid Hydrolysis ◽  
Raman Spectroscopic ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Rapid organic solvent extraction coupled with surface enhanced Raman spectroscopic mapping for ultrasensitive quantification of foliarly applied silver nanoparticles in plant leaves

2020 ◽  
Vol 7 (4) ◽  
pp. 1061-1067
Author(s):  
Zhiyun Zhang ◽  
Ming Xia ◽  
Chuanxin Ma ◽  
Huiyuan Guo ◽  
Wenhao Wu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Organic Solvent ◽  
Mapping Technique ◽  
Plant Leaves ◽  
Raman Spectroscopic ◽  
Organic Solvent Extraction ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Spinach Leaf ◽  
Leaf P

An organic solvent-based extraction approach coupled with surface enhanced Raman spectroscopic mapping technique to quantify silver nanoparticles in spinach leaf.

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