Positively charged (zeta potential 22-31 mV) hydrogel microparticles based on low and high molecular weight chitosan were synthesized. The effect of the crosslinking agent on their physicochemical characteristics was studied. It was established, that among obtained hydrogel particles, the ones based on low molecular weight chitosan crosslinked with citrate anions, followed by additional treatment with glutaraldehyde, are the most promising as carriers of growth regulators or plant protection products.

中文翻译：

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壳聚糖基水凝胶微粒的制备及性能

合成了基于低分子量和高分子量壳聚糖的带正电（zeta 电位 22-31 mV）水凝胶微粒。研究了交联剂对其理化特性的影响。已经确定，在获得的水凝胶颗粒中，基于低分子量壳聚糖与柠檬酸根阴离子交联，然后用戊二醛进行额外处理的水凝胶颗粒是最有前途的生长调节剂或植物保护产品的载体。