羧甲基纤维素
抗菌剂
化学
细菌纤维素
壳聚糖
粪肠球菌
水处理
纤维素
金黄色葡萄球菌
细菌
微生物学
材料科学
钠
废物管理
生物
有机化学
工程类
遗传学
作者
Manal F. Abou Taleb,Amr Farouk
标识
DOI:10.1016/j.jece.2023.111860
摘要
Many developing countries still lack enough credentials for a healthy and safe water supply. To control the circulation of waterborne diseases and ensure consumer safety, a significant problem is eliminating dangerous microbes from water systems using efficacious water disinfection technology. This current research work's objective was to encapsulate the microalgal extract inside the porous structures of these sponge materials. Freeze drying technique was used to prepare these sponge materials (cryogels) using carboxymethyl cellulose (CMC) and sodium alginate (SA). The cryogel solution was loaded with different concentrations of microalgal extract. Microalgal extract is encapsulated mainly due to the presence of many interstitial pores with these spongy materials. The obtained data depicted that the sponge materials (cryogels) exhibited lamellar layers with immense porous structures. The mechanical properties of cryogel were enhanced with the addition of microalgal extract. The macroporous antimicrobial cryogel, is used to demonstrate a very efficient point-of-use water disinfection technology. Inactivating 100% of both Gram-negative and Gram-positive bacteria, including Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Enterococcus faecalis were achieved within 120 min after treatment by Sp.m-3@CM-SA. The Sp.m-3@CM-SA cryogel may be used for additional bacterial inactivation and water disinfection applications. The biocidal effect of the Sp.m-3@CM-SA cryogel is thought to be controlled primarily by surface-controlled processes that rely on direct contact between the bacterial cells and the interface of the cryogels. This suggests that the antimicrobial activity of the cryogel is related to the material's surface properties, which may facilitate the release of antimicrobial compounds from the algal biomass loaded in the cryogel.
科研通智能强力驱动
Strongly Powered by AbleSci AI