1 1 carbonyldiimidazole

Tetraethylorthosilicate (TEOS, ≥99.0%), ammonium fluoride (NH₄F, ACS reagent, ≥98.0%), sodium chloride (NaCl, BioXtra, ≥99.5%), sodium phosphate dibasic (Na₂HPO₄, ≥98.5%), sodium phosphate monobasic (NaH₂PO₄, ≥99.0%), sodium hydroxide (NaOH, ≥98.0%), hydrochloric acid (HCl, ACS Reagent, ≥37%), phosphoric acid (H₃PO₄, ACS Reagent, ≥85%), dry dimethylformamide (DMF, ACS Reagent, ≥99.8%); %); dichloromethane (DCM, extra dry over molecular sieve, 99.8%); diethyl ether (Et₂O, 99.8%) and Pluronic P123 (tri-block copolymer poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide, PEO₂₀PPO₇₀PEO₂₀) were purchased from Sigma-Aldrich (St. Louis, MO, USA). Ethanol (EtOH, Normapur, 96%) was obtained from VWR Chemicals (Fontenay-sous-Bois, France). Acetonitrile (ACN, Chromasolv, ≥99.9%) was purchased from Honeywell Lab (Muskegon, MI, USA). L-argininamide dihydrochloride (H-L-Arg-NH₂), L-isoglutamine (H-L-Glu-NH₂, 95%), L-leucinamide hydrochloride (H-L-Leu-NH₂, 98%), L-serinamide hydrochloride (H-L-Ser-NH₂, 95%), L-tyrosinamide (H-L-Tyr-NH₂, 95%), 1,1′-carbonyldiimidazole (CDI, 93%), 3-(triethoxysilyl)propyl isocyanate (ICPTES, 95%), 3-aminopropyl(trimethylsiloxy)silane (95%) and the N,N-diisopropylethylamine (DIEA) were purchased from ABCR (Karlsruhe, Germany).
Lysozyme from chicken egg white (Lys, lyophilized powder, ≥99.0%) was purchased from Sigma (St. Louis, MO, USA).

3-aminopropyltriethoxysilane (98%, ABCR, Karlsruhe, Germany), potassium tert-butanolate (97%, ABCR), triethanolamine (TEA, Himmed, Moscow, Russia), succinic anhydride (98%, ACROS, Waltham, Massachusetts, USA), (Aminomethyl)trimethylsilane (95%, ABCR), 1,1′-carbonyldiimidazole (CDI, 95%, ABCR), 1,6-Diphenylhexatriene (DPH, 98%, Sigma-Aldrich, St. Louis, MI, USA) were used as-received; triethylamine, THF, dichloromethane, benzene, DMSO, acetone, diethyl ether (Himmed, Russia) were purified by standard methods [31 ]; Polyglycerol (Mn = 4950 Da, Mw/Mn = 1.5) was synthesized by anionic polymerization of glycidol at INEOS RAS according to the well-known procedure [28 (link)]. Branched polyester Boltorn H40 (Mn = 7300 Da, Mw/Mn =1.25) was obtained from Perstorp Polyols AB, Perstorp, Sweden, and purified by acetone/diethyl ether precipitation method. Seeds of soft wheat (Triticum aestivum L., var. “Harkovskaya 46”), common oat (Avena sativa L., var. “Heather”) and winter rye (Secale cereale L., var. “Orlovskaya 9”) (GAVRISH Co., Moscow, Russia) were used without additional processing.