FIG. 2.
RESpect peaks. RESpect plot depicts unique peaks in HIV-negative and HIV-positive individuals at specific wave numbers after asymmetric least squares baseline correction. Peaks correspond to various chemical compositions such as DNA bases, lipids, proteins, and bond stretching. Highlighted peaks correspond to proline (815, 830, 853, 868, 918, 950, 1,066 cm−1), tyrosine (822, 831, 853, 1,032, 1,066, 1,205 cm−1), collagen (859, 1,034, 1,204 cm−1), and phenylalanine (1,002, 1,031, 1,107, 1,208 cm−1). RESpect, Raman-enhanced spectroscopy.