1 6 diphenylhexatriene dph

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.

N-Octanoyl-N-methylglucamine (L8; 98%), N-decanoyl-N-methylglucamine (L10; 98%), gadolinium chloride hexahydrate GdCl₃·6H₂O, and 1,6-diphenylhexatriene (DPH) were obtained from Sigma Aldrich Chemical Co. (USA). Soybean phosphatidylcholine (SPC, Phospholipon 90) was obtained from Lipoid (Germany). Magnevist was obtained from Bayer (Germany).