纳米复合材料
哈茨木霉
羧甲基纤维素
材料科学
纤维素
聚合物
生物高聚物
纳米纤维素
化学工程
化学
复合材料
植物
生物病虫害防治
冶金
钠
工程类
生物
作者
Mariana Brondi,Camila Florencio,Luiz Mattoso,Caue Ribeiro,Cristiane Farinas
标识
DOI:10.1016/j.carbpol.2022.119876
摘要
This study proposes the use of green matrices of cellulose nanocrystals (CNC) and a nanocomposite of CNC with carboxymethyl cellulose (CMC) for efficiently encapsulating the plant biocontrol agent Trichoderma harzianum . Beads containing spores of the microorganism were produced by dripping dispersions of the polymers into a CaCl 2 coagulation bath, resulting in the crosslinking of CNC chains by Ca 2+ ions. SEM micrographs evidenced the T. harzianum spores in the encapsulation matrices. X-ray microtomography confirmed the random distribution of the microorganism within the polymeric matrix and the presence of internal pores in the CNC:CMC:spores beads. Encapsulation in the CNC:CMC nanocomposite favored growth of the fungus after 10 days of storage at room temperature, which could be attributed to the presence of internal pores and to the extra carbon source provided by the CMC. The results indicated that CNC:CMC nanocomposites are promising materials for protecting and delivering microbial inoculants for agricultural applications.
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