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. Author manuscript; available in PMC: 2018 Mar 1.
Published in final edited form as: Acta Biomater. 2017 Jan 6;50:361–369. doi: 10.1016/j.actbio.2017.01.019

Figure 1.

Figure 1

Synthesis and fluorescence properties of CA-Cys and BPLP-Cys. (a) Synthetic schemes for CA-Cys (from citric acid and cysteine), BPLP-Cys (from citric acid, 1,8-octanediol, and cysteine), and BPLP-TPA (from CA-Cys and 1,8-octanediol). The hydrolysis reaction of BPLP-Cys to form CA-Cys is also illustrated. (b) 3D excitation-emission spectra of CA-Cys in water solution. (c) Images of CA-Cys solution under white light with white/black background and under UV light (from left to right). (d) Comparison of maximum excitation and emission spectra of BPLP-Cys and BPLP-TPA (which resulted from the reaction of CA-Cys and 1,8-octanediol).