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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Fluorescence spectra of CTSB-PPP. (A) absorption spectra and (B) Emission spectra of CTSB-PPP (28% loading of Pha-peptide) and its non-quenched reference (1% loading of Pha-peptide) with equimolar amount of Pha (3.0 µM) in aqueous DPBS buffer. Ex = 400 nm; Em = 670 nm; T = 37 °C.