Abstract

Near-IR spectrometric determination of minor constituents of biological systems is complicated by the fact that near-IR spectra of these materials vary in different chemical and physical environments. In such cases, wavelength selection methods and full-spectral techniques such as partial least-squares and principal component regression (which weight each wavelength in calibration) produce excess error because they must attempt to model both variations in major constituents and variations in the analyte. A magnetohydrodynamic acoustic-resonance near-IR (MARNIR) spectrometer can determine major constituents of biological materials noninvasively and nondestructively, leaving the near-IR spectrum of the analyte to be used quantitatively with less prediction error.

LSPR-based cholesterol biosensor using a tapered optical fiber structure

Santosh Kumar, Brajesh Kumar Kaushik, Ragini Singh, Nan-Kuang Chen, Qing Shan Yang, Xia Zhang, Wenjun Wang, and Bingyuan Zhang
Biomed. Opt. Express 10(5) 2150-2160 (2019)

Multicomponent blood analysis by near-infrared Raman spectroscopy

Andrew J. Berger, Tae-Woong Koo, Irving Itzkan, Gary Horowitz, and Michael S. Feld
Appl. Opt. 38(13) 2916-2926 (1999)

Determination of glucose concentration in a scattering medium based on selected wavelengths by use of an overtone absorption band

Gilwon Yoon, Airat K. Amerov, Kye Jin Jeon, and Yoen-Joo Kim
Appl. Opt. 41(7) 1469-1475 (2002)

Index of refraction determination in the near-millimeter wavelength range using a mesh Fabry-Perot resonant cavity

G. J. Simonis and R. D. Felock
Appl. Opt. 22(1) 194-198 (1983)

Nondestructive determination of SSC in an apple by using a portable near-infrared spectroscopy system

Yizhe Zhang, Jipeng Huang, Qiulei Zhang, Jinwei Liu, Yanli Meng, and Yan Yu
Appl. Opt. 61(12) 3419-3428 (2022)