Sodium hexametaphosphate crystalline

Acryl-PEG-SVA (MW= 5,000 g/mol) was purchased from Laysan Bio (Arab, AL). PEGDA (MW= 575 g/mol), Vinyl-2-pyrrolidone (NVP), potassium persulfate (KPS), sodium hexametaphosphate crystalline, Span® 80, Tween® 20, Eosin Y, triethanolamine (TEA), fluorescein isothiocyanate (FITC), 2,2′-(Ethylenedioxy)bis(ethylamine) (EDEA) and piperidine were purchased from Sigma Aldrich (St Louis, MO). Cyclohexane 99%, potassium phosphate monobasic crystals and 2,2’-Azobis(2-methylpropionamidine) dihydrochloride (V-50) were purchased from Acros Organics. Acetone, 1-Ethyl-3-(3-Dimethylaminopropyl)carbodiimide (EDAC), triisopropylsilane, diethyl ether and N,N-diisopropylethylamine (DIEA), were purchased from Fisher Scientific (Hanover Park, IL). All amino acids, resin, O-benzotriazole-N,N,N’,N’-tetramethyluronium-hexafluoro-phosphate (HBTU), N,N-dimethylformamide (DMF) and trifluoroacetic acid (TFA) were purchased from AAPPTec (Louisville, KY). Please add Pi and PPi names and vendor information here. Ultra-high purity (UHP) nitrogen was purchased from Airgas (Radnor, PA, USA). All the other reagents were used without further processing.