Ontology highlight
ABSTRACT:
SUBMITTER: Zhang Q
PROVIDER: S-EPMC5384246 | biostudies-literature | 2017 Apr
REPOSITORIES: biostudies-literature
Zhang Qi Q Castro Smirnov Jose R JR Xia Ruidong R Pedrosa Jose M JM Rodriguez Isabel I Cabanillas-Gonzalez Juan J Huang Wei W
Scientific reports 20170407
We demonstrated a simple, directly-readable approach for high resolution pH sensing. The method was based on sharp changes in Amplified Spontaneous Emission (ASE) of a Stilbene 420 (ST) laser dye triggered by the pH-dependent absorption of Bromocresol Green (BG). The ASE threshold of BG:ST solution mixtures exhibited a strong dependence on BG absorption, which was drastically changed by the variations of the pH of BG solution. As a result, ASE on-off or off-on was observed with different pH leve ...[more]