Abstract

A near IR Raman system capable of collecting spectra in real time from human tissues has been been installed. The system consists of a Kaiser f/1.8i single-stage imaging spectrograph equipped with a highly efficient """"""""volume phase"""""""" transmission grating and an EEV deep-depletion CCD array detector. The laser excitation is provided by Coherent Innova 90 Argon ion laser pumped dye laser or argon ion pumped Ti:sapphire laser. Halographic edge filters are used to efficiently reject Rayligh but at the same to measure Raman signals down to 200 cm-1 wavenumber shift from the excitation light. Good quality spectra have been obtained from from a variety of human tissues in under 1 sec. One such system is now located at the CCleveland Clinic foundation and another is being used at the Metro-West Hospital, Natick, MA.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
2P41RR002594-11
Application #
5224203
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
11
Fiscal Year
1996
Total Cost
Indirect Cost

  Publications

Shih, Wei-Chuan; Bechtel, Kate L; Rebec, Mihailo V (2015) Noninvasive glucose sensing by transcutaneous Raman spectroscopy. J Biomed Opt 20:051036
Dudzik, Jonathan; Chang, Wen-Chi; Kannan, A M et al. (2013) Cross-linked glucose oxidase clusters for biofuel cell anode catalysts. Biofabrication 5:035009
Sathyavathi, R; Dingari, Narahara Chari; Barman, Ishan et al. (2013) Raman spectroscopy provides a powerful, rapid diagnostic tool for the detection of tuberculous meningitis in ex vivo cerebrospinal fluid samples. J Biophotonics 6:567-72
Dingari, Narahara Chari; Barman, Ishan; Saha, Anushree et al. (2013) Development and comparative assessment of Raman spectroscopic classification algorithms for lesion discrimination in stereotactic breast biopsies with microcalcifications. J Biophotonics 6:371-81
Cooper, Kimberly L; Oh, Seungeun; Sung, Yongjin et al. (2013) Multiple phases of chondrocyte enlargement underlie differences in skeletal proportions. Nature 495:375-8
Sung, Yongjin; Tzur, Amit; Oh, Seungeun et al. (2013) Size homeostasis in adherent cells studied by synthetic phase microscopy. Proc Natl Acad Sci U S A 110:16687-92
Lau, Condon; Mirkovic, Jelena; Yu, Chung-Chieh et al. (2013) Early detection of high-grade squamous intraepithelial lesions in the cervix with quantitative spectroscopic imaging. J Biomed Opt 18:76013
Soares, Jaqueline S; Barman, Ishan; Dingari, Narahara Chari et al. (2013) Diagnostic power of diffuse reflectance spectroscopy for targeted detection of breast lesions with microcalcifications. Proc Natl Acad Sci U S A 110:471-6
Kim, Youngchan; Higgins, John M; Dasari, Ramachandra R et al. (2012) Anisotropic light scattering of individual sickle red blood cells. J Biomed Opt 17:040501
Saha, Anushree; Barman, Ishan; Dingari, Narahara Chari et al. (2012) Precision of Raman spectroscopy measurements in detection of microcalcifications in breast needle biopsies. Anal Chem 84:6715-22

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