scholarly journals Application of scanning angle Raman spectroscopy for determining the location of buried polymer interfaces with tens of nanometer precision

The Analyst ◽  
2015 ◽  
Vol 140 (6) ◽  
pp. 1955-1964 ◽  
Author(s):  
Craig A. Damin ◽  
Vy H. T. Nguyen ◽  
Auguste S. Niyibizi ◽  
Emily A. Smith
Keyword(s):  
Raman Spectroscopy ◽  
Near Infrared ◽  
Polymer Interfaces ◽  
Total Thickness ◽  
Scanning Angle ◽  
Bilayer Films ◽  
Infrared Scanning ◽  
Interface Location ◽  
P Application

Application of near-infrared scanning angle Raman spectroscopy for determinations of total thickness and buried interface location for thin, bilayer films of polystyrene and polycarbonate.

scholarly journals Applications of Vibrational Spectroscopy for Analysis of Connective Tissues

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 922
Author(s):  
William Querido ◽  
Shital Kandel ◽  
Nancy Pleshko
Keyword(s):  
Raman Spectroscopy ◽  
Vibrational Spectroscopy ◽  
Near Infrared ◽  
Ex Vivo ◽  
Biological Tissues ◽  
Label Free ◽  
Connective Tissues ◽  
Bone Properties ◽  
Composition And Structure

Advances in vibrational spectroscopy have propelled new insights into the molecular composition and structure of biological tissues. In this review, we discuss common modalities and techniques of vibrational spectroscopy, and present key examples to illustrate how they have been applied to enrich the assessment of connective tissues. In particular, we focus on applications of Fourier transform infrared (FTIR), near infrared (NIR) and Raman spectroscopy to assess cartilage and bone properties. We present strengths and limitations of each approach and discuss how the combination of spectrometers with microscopes (hyperspectral imaging) and fiber optic probes have greatly advanced their biomedical applications. We show how these modalities may be used to evaluate virtually any type of sample (ex vivo, in situ or in vivo) and how “spectral fingerprints” can be interpreted to quantify outcomes related to tissue composition and quality. We highlight the unparalleled advantage of vibrational spectroscopy as a label-free and often nondestructive approach to assess properties of the extracellular matrix (ECM) associated with normal, developing, aging, pathological and treated tissues. We believe this review will assist readers not only in better understanding applications of FTIR, NIR and Raman spectroscopy, but also in implementing these approaches for their own research projects.

Application of FT-Raman spectroscopy to the study of selected organometallic complexes and proteins

1990 ◽  
Vol 68 (7) ◽  
pp. 1196-1200 ◽  
Author(s):  
Steven M. Barnett ◽  
François Dicaire ◽  
Ashraf A. Ismail
Keyword(s):  
Raman Spectroscopy ◽  
Near Infrared ◽  
Metal Carbonyl ◽  
Protein A ◽  
Organometallic Complexes ◽  
Laser Source ◽  
Chromium Tricarbonyl ◽  
Ft Raman Spectroscopy ◽  
Arene Chromium Tricarbonyl ◽  
Ft Raman

The study of colored organometallic complexes by dispersive Raman spectroscopy has been limited due to fluorescence or photodecomposition caused by the visible laser used as the excitation source. As a solution to this problem, FT-Raman spectroscopy with a near-infrared laser source has been useful in lowering fluorescence or photolysis in these samples. To investigate the utility of this technique, we have obtained and assigned the FT-Raman spectra of a series of arene chromium tricarbonyl complexes and of cyclopentadienyl manganese tricarbonyl. Some bands previously unobserved by dispersive Raman spectroscopy were seen, including a band assigned to a 13CO satellite in the spectrum of methylbenzoate chromium tricarbonyl. In addition, FT-Raman data for bovine serum albumin (BSA) and Protein-A are presented. Keywords: FT-Raman spectroscopy, metal carbonyl, proteins, organometallics, near infrared.

Near-infrared Raman spectroscopy to detect anti- Toxoplasma gondii antibodies in blood sera of domestic cats

2001 ◽  
Author(s):  
Janaina Duarte ◽  
Marcos T. T. Pacheco ◽  
Landulfo Silveira, Jr. ◽  
Rosangela Z. Machado ◽  
Rodrigo A. L. Martins ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Toxoplasma Gondii ◽  
Near Infrared ◽  
Domestic Cats

In vivo detection of cervical dysplasia with near-infrared Raman spectroscopy

2002 ◽  
Author(s):  
Amy Robichaux ◽  
Chad A. Lieber ◽  
Heidi Shappell ◽  
Beth Huff ◽  
Howard Jones III ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Near Infrared ◽  
Cervical Dysplasia

Ultraviolet and near-infrared Raman spectroscopy of graphitic C3N4 phase

2009 ◽  
Vol 472 (1-3) ◽  
pp. 69-73 ◽  
Author(s):  
Pavel V. Zinin ◽  
Li-Chung Ming ◽  
Shiv K. Sharma ◽  
Valery N. Khabashesku ◽  
Xiuru Liu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Near Infrared
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