酶解与壳聚糖纳米颗粒共价结合对聚酰胺6的表面处理。

IF 5.5 2区 化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
Larissa Paza, Wendhy C Vicente, Marília Miotto, Marcel Afonso Provenzi, Daniane Aparecida Netzel, Larissa N Carli, Patrícia B Brondani
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引用次数: 0

摘要

聚酰胺(PA)具有显著的物理和化学性能,是工业领域用途最广泛的合成材料之一。然而,它的疏水性给它的选矿和改性带来了重大挑战。壳聚糖纳米颗粒(CNPs)修饰PA可以改善其性能,但由于两种结构的化学基团之间的弱相互作用,在文献中很少发现。酶介导的表面水解可以轻度改善PA的性质并产生活性位点。这些位点可以与CNPs反应,赋予织物增强的性能,如抗菌活性和阻燃性。研究了14种水解酶在100%聚酰胺6 (pa6)织物表面水解中的作用。如此广泛的研究应用几种酶的这一过程是罕见的。在最佳条件下,水解织物与CNPs共价结合,生成的材料具有降低细菌增殖和阻燃性能。罕见的共价键连接实现了高材料耐久性,即使经过五次洗涤循环。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Surface Treatment of Polyamide 6 through Enzymatic Hydrolysis and Covalent Incorporation of Chitosan Nanoparticles.

Polyamide (PA) has notable physical and chemical properties and is one of the most versatile synthetic materials in the industrial sector. However, its hydrophobicity creates significant challenges in its beneficiation and modification. Modifications of PA with chitosan nanoparticles (CNPs) can improve its undesired properties but are rarely found in the literature due to the weak interaction between the chemical groups of both structures. Surface hydrolysis mediated by enzymes can mildly improve the PA properties and create reactive sites. These sites can react with CNPs to confer enhanced properties to the fabrics, such as antimicrobial activity and flame retardancy. This study investigated the action of 14 hydrolases in the surface hydrolysis of 100% polyamide 6 (PA 6) fabric. Such an extensive study applying several enzymes for this process is uncommon. Under the optimum conditions, the hydrolyzed fabric was covalently bonded to the CNPs, generating material with reduced bacterial proliferation and flame retardancy properties. The uncommon covalent bond attachment achieved high material durability, even after five washing cycles.

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来源期刊
Biomacromolecules
Biomacromolecules 化学-高分子科学
CiteScore
10.60
自引率
4.80%
发文量
417
审稿时长
1.6 months
期刊介绍: Biomacromolecules is a leading forum for the dissemination of cutting-edge research at the interface of polymer science and biology. Submissions to Biomacromolecules should contain strong elements of innovation in terms of macromolecular design, synthesis and characterization, or in the application of polymer materials to biology and medicine. Topics covered by Biomacromolecules include, but are not exclusively limited to: sustainable polymers, polymers based on natural and renewable resources, degradable polymers, polymer conjugates, polymeric drugs, polymers in biocatalysis, biomacromolecular assembly, biomimetic polymers, polymer-biomineral hybrids, biomimetic-polymer processing, polymer recycling, bioactive polymer surfaces, original polymer design for biomedical applications such as immunotherapy, drug delivery, gene delivery, antimicrobial applications, diagnostic imaging and biosensing, polymers in tissue engineering and regenerative medicine, polymeric scaffolds and hydrogels for cell culture and delivery.
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