Mid-infrared photoacoustic spectroscopy based on ultrasound detection for blood component analysis.
Biomed Opt Express
; 14(7): 3841-3852, 2023 Jul 01.
Article
en En
| MEDLINE
| ID: mdl-37497499
ABSTRACT
For the non-invasive measurement of biological tissue, a piezoelectric photoacoustic spectroscopy (PZT-PAS) system that detects a single frequency of ultrasound induced by the irradiation of pulse-modulated mid-infrared laser light was developed. PA spectra of the optical phantom and biological samples were obtained, and the relationship between the PA signal intensity and optical absorbance in the fingerprint region (930-1,200â
cm-1) was analyzed to estimate the optical absorbance. The resonance vibration of the induced ultrasound was utilized to further increase the signal strength for biological tissue measurement. Consequently, PA spectrum reflecting the absorption of components in biological tissues was obtained.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Biomed Opt Express
Año:
2023
Tipo del documento:
Article
País de afiliación:
Japón