Human serum albumin (HSA, ≥ 98%),
Bovine serum albumin (BSA, ≥ 98%),
β-Lactoglobulin from bovine blood (β-LG, ≥ 90%),
L-Cysteine (Cys, ≥ 98%),
IR-780 ( ≥ 98%), and
anhydrous dimethyl sulfoxide (DMSO, ≥ 99%) were purchased from Sigma-Aldrich. ICG (modified) for human injection was purchased from Dandong Yichuang Pharmaceutical Co. Ltd. IR-808 ( ≥ 95%) was purchased from Beijing Zhongying Biotechnology Co., Ltd. Cyanine5 NHS ester (Cy5, ≥ 99%) was purchased from Aladdin (Shanghai, China). Recombinant human albumin domain I (DI, ≥ 95%), recombinant human albumin domain II (DII, ≥ 95%), and recombinant human albumin domain III (DIII, ≥ 95%) were purchased from Albumin Therapeutics LLC. Benzo[cd]indol-2(1H)-one, phosphorus pentasulfide,
pyridine,
sodium hydroxide (NaOH), methyl iodide,
acetone,
methanol, 2,2-dimethyl-1,3-dioxane-4,6-dione,
ethanol,
triethylamine, ethyl iodide,
N,N-Dimethylformamide (DMF),
potassium carbonate, concentrated hydrochloric acid (HCl),
potassium iodide,
acetic acid,
acetic anhydride, 1-iodopropane,
1,4-butylenesulfone,
potassium hydroxide,
N-methylpyrrolidone(NMP), 2,6-di-tert-butyl-4-methyl
pyridine (DTBMP), toluene, 1-butanol, and ethyl 6-bromohexanoate were purchased from Energy Chemical.
Xu J., Zhu N., Du Y., Han T., Zheng X., Li J, & Zhu S. (2024). Biomimetic NIR-II fluorescent proteins created from chemogenic protein-seeking dyes for multicolor deep-tissue bioimaging. Nature Communications, 15, 2845.