Patent ID: 11959858
Assignee: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 16:
17. The system of claim 1, wherein:
the Raman spectrometer uses a 785 nm laser for collecting the Raman spectral data; and
the chemometric analyses on the Raman spectral data involves analyzing wavenumbers in one or more of the following ranges:
urea band in the range of about 1,000 to 1,005 cm−1, 1,002 cm−1 and/or 1,003 cm−1 bands,
uric acid at 981 cm−1,
creatinine at 680 cm−1,
collagen at 870 cm−1,
glucose at 1,071 cm−11,117 cm−1,
phosphatidylinositol (576 cm−1),
nucleic acids (721, 827, 1340 cm−1),
protein (or collagen) (817, 981, 1065, 1127, 1340 cm−1),
aromatic amino acids (827, 1004 cm−1),
cholesterol and fatty acids (702, 1297 cm−1),
monosaccharides (846 cm−1),
glycogen (1048 cm−1),
carotenoids (1417, 1518 cm−1),
1,050-1,250 cm−1 (lipids, carbohydrates, phosphate stretching, and C-N stretching of amides and proteins,
1,590-1,750 cm−1 (protein assignments, namely to aromatic amino acids),
669, 750, 752, 999, 1,122, 1,210, 1,444, 1,543, 1,579, 1,617 cm−1 (heme and red blood cells),
around 900 cm−1 and from 1,200-1,400 cm−1 (associated with tryptophan and protein, including collagen),
620 cm−1 (related to aromatics),
880 cm−1, 1,360 cm−1, 1,364 cm−1 (tryptophan),
642 cm−1, 665 cm−1 (related to tyrosine), and/or
1,211 cm−1 (tyrosine and phenylalanine).