Open AccessFluorescent property of indocyanine green (ICG) rubber ring using LED and laser light sources
Author(s) -
Nha Young Hong,
Hong Rae Kim,
Hyun Min Lee,
Dae Kyung Sohn,
Kwang Gi Kim
Publication year - 2016
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.7.001637
Subject(s) - fluorescence , indocyanine green , brightness , materials science , optics , laser , wavelength , excitation , natural rubber , optoelectronics , physics , quantum mechanics , composite material
Fluorescent properties of ICG depends on solvent. Fluorescent characteristics of ICG rubber rings and optimized detection system condition were identified. The fluorescent rubber rings are produced by drying mixture of ICG solution and liquid rubber. LED and laser light sources were used to test differences between them. Other variables are ICG molar concentration (100, 80, 60, 40, 20, 10μM), excitation light spectrum (740, 760, 785nm) and angle of view (0~80°). We observed that ICG ring emitted fluorescence at longer wavelength than in blood and aqueous state. Observation angle between 0 and 50 provided similar brightness of images, while others are significantly less luminous. Excitation light between 740~760nm ensured non-overlapping spectrums of excitation light and fluorescence emission.