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用于递送生物活性桦褐孔菌提取物的木质素基水凝胶

Lignin-Based Hydrogels for the Delivery of Bioactive Chaga Mushroom Extract.

作者信息

Nagardeolekar Aditi, Dongre Prajakta, Bujanovic Biljana M

机构信息

Saint-Gobain Research North America, 9 Goddard Rd, Northborough, MA 01532, USA.

Department of Biological Systems Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.

出版信息

Polymers (Basel). 2024 Mar 14;16(6):807. doi: 10.3390/polym16060807.

Abstract

Lignin-poly(ethylene)glycol diglycidyl ether hydrogels were synthesized from lignin fractions readily extracted during the hot-water treatment of angiosperms: hardwoods, sugar maple and energy-crop willow, monocotyledons, grasses, miscanthus and agriculture residues, and wheat straw. These lignins represent a broad range of chemical structures and properties as a comparative analysis of their suitability to produce the hydrogels as a novel carrier of chaga-silver nanoparticles. The formation of hydrogels was assessed via attenuated total reflectance Fourier-transformed infrared spectroscopy. Then, the hydrogels were observed via scanning electron microscopy and evaluated for their free-absorbency capacity and moduli of compression. Furthermore, a hydrogel produced from kraft lignin and two commercial hydrogels was evaluated to benchmark the effectiveness of our hydrogels. Chaga extracts were prepared via the hot-water extraction of chaga mushroom, a method selected for its relatively higher yields and preserved antioxidizing activities. Hydrogels synthesized with lignins of monocotyledons, wheat straw, and miscanthus were found to be suitable carriers for chaga-silver nanoparticles due to their favorable absorption and release behaviors.

摘要

木质素 - 聚(乙烯)二醇二缩水甘油醚水凝胶是由在被子植物热水处理过程中容易提取的木质素馏分合成的,这些被子植物包括:阔叶树(糖枫)、能源作物柳树、单子叶植物(禾本科植物)、芒草以及农业残留物(小麦秸秆)。这些木质素代表了广泛的化学结构和性质,作为对它们作为桦褐孔菌 - 银纳米颗粒新型载体生产水凝胶适用性的比较分析。通过衰减全反射傅里叶变换红外光谱法评估水凝胶的形成。然后,通过扫描电子显微镜观察水凝胶,并评估其自由吸收能力和压缩模量。此外,对由硫酸盐木质素制备的水凝胶和两种商业水凝胶进行评估,以衡量我们水凝胶的有效性。桦褐孔菌提取物通过桦褐孔菌的热水提取制备,该方法因其相对较高的产量和保留的抗氧化活性而被选用。发现用单子叶植物、小麦秸秆和芒草的木质素合成的水凝胶由于其良好的吸收和释放行为,是桦褐孔菌 - 银纳米颗粒的合适载体。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d474/10975412/84eb3bfc2aa7/polymers-16-00807-g0A1.jpg

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