Near-Infrared Multichannel Raman Spectroscopy with a 1064 nm Excitation Wavelength for Ex Vivo Diagnosis of Gastric Cancer

2011 ◽  
Vol 169 (2) ◽  
pp. e137-e143 ◽  
Author(s):  
Toshiki Kawabata ◽  
Hirotoshi Kikuchi ◽  
Shigetoshi Okazaki ◽  
Masayoshi Yamamoto ◽  
Yoshihiro Hiramatsu ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Raman Spectroscopy ◽  
Near Infrared ◽  
Ex Vivo ◽  
Excitation Wavelength

Abstract 5312: Near-infrared multichannel Raman spectroscopy with a 1064-nm excitation wavelength forex vivodiagnosis of gastric cancer

2011 ◽  
Author(s):  
Hirotoshi Kikuchi ◽  
Toshiki Kawabata ◽  
Shigetoshi Okazaki ◽  
Yoshihiro Hiramatsu ◽  
Megumi Baba ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Raman Spectroscopy ◽  
Near Infrared ◽  
Excitation Wavelength

scholarly journals Optical diagnosis of gastric cancer using near-infrared multichannel Raman spectroscopy with a 1064-nm excitation wavelength

2008 ◽  
Vol 43 (4) ◽  
pp. 283-290 ◽  
Author(s):  
Toshiki Kawabata ◽  
Toshihiko Mizuno ◽  
Shigetoshi Okazaki ◽  
Mitsuo Hiramatsu ◽  
Tomohiko Setoguchi ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Raman Spectroscopy ◽  
Near Infrared ◽  
Excitation Wavelength ◽  
Optical Diagnosis

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.

Combining near-infrared-excited autofluorescence and Raman spectroscopy improves in vivo diagnosis of gastric cancer

2011 ◽  
Vol 26 (10) ◽  
pp. 4104-4110 ◽  
Author(s):  
Mads Sylvest Bergholt ◽  
Wei Zheng ◽  
Kan Lin ◽  
Khek Yu Ho ◽  
Ming Teh ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Raman Spectroscopy ◽  
Near Infrared ◽  
In Vivo Diagnosis

Assessment of ex-vivo and in-vivo near-infrared Raman spectroscopy for the classification of dysplasia within Barrett's esophagus

2000 ◽  
Author(s):  
Martin G. Shim ◽  
Louis-Michel Wong Kee Song ◽  
Norman E. Marcon ◽  
Shirley Hassaram ◽  
Brian C. Wilson
Keyword(s):  
Raman Spectroscopy ◽  
Barrett’S Esophagus ◽  
Barrett's Esophagus ◽  
Near Infrared ◽  
Ex Vivo

Near-infrared raman spectroscopy for detection of gastric cancer peritoneal dissemination in vivo

2011 ◽  
Author(s):  
Jun Ma ◽  
Wei-zheng Mao ◽  
Ming Xu ◽  
Long-jing Gong ◽  
Yuan Gao ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Raman Spectroscopy ◽  
Near Infrared ◽  
Peritoneal Dissemination

Diagnosis of gastric cancer using near-infrared Raman spectroscopy and classification and regression tree techniques

2008 ◽  
Vol 13 (3) ◽  
pp. 034013 ◽  
Author(s):  
Seng Khoon Teh ◽  
Wei Zheng ◽  
Khek Yu Ho ◽  
Ming Teh ◽  
Khay Guan Yeoh ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Raman Spectroscopy ◽  
Near Infrared ◽  
Regression Tree ◽  
Classification And Regression Tree ◽  
Classification And Regression

Biological applications of near- IR fourier-transform Raman microspectroscopy

1992 ◽  
Vol 50 (2) ◽  
pp. 1530-1531
Author(s):  
Yukihiro Ozaki
Keyword(s):  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Photosynthetic Bacteria ◽  
Near Infrared ◽  
Raman Microspectroscopy ◽  
Excitation Wavelength ◽  
Near Ir ◽  
Ft Raman Spectroscopy ◽  
Sample Position ◽  
Ft Raman

Recently-developed near-infrared Fourier transform (FT)-Raman spectroscopy has received keen interest of researchers in bio-Raman field because near-infrared excitation can avoid mostly fluorescence and photodecomposition, which have been two major drawbacks of Raman spectroscopy in its biological and medical applications. Introduction of FT-Raman microspectroscopy makes near-infrared FT-Raman spectroscopy more useful for studying biomedical materials. The purpose of the present paper is to demonstrate the potential of near-infrared FT-Raman microspectroscopy in nondestructive structural analysis of biological systems. Photosynthetic bacteria is taken up here as an example.The FT-Raman spectra of the photosynthetic bacteria were measured with a JEOL JRS-FT6500N FT-Raman spectrometer equipped with an optical microscopy. Excitation wavelength at 1064-nm was provided by a CW Nd:YAG laser (CVI YAGMAX c-92), and the laser power at the sample position was typically 150 mW. All the data were collected at a spectral resolution of 8 cm-1 and spatial resolution of 8 μm.

Sign in / Sign up

Export Citation Format

Share Document