普鲁士蓝涂层非织造材料在细菌检测中的应用  

Application of Prussian blue coated nonwoven materials in bacterial detection

作　　者：夏梦 成悦 刘蓉 李大伟 付译鋆 XIA Meng;CHENG Yue;LIU Rong;LI Dawei;FU Yijun(School of Textile and Clothing,Nantong University,Nantong,Jiangsu 226019,China;National&Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health,Nantong,Jiangsu 226019,China)

机构地区：[1]南通大学纺织服装学院,江苏南通226019 [2]安全防护用特种纤维复合材料研发国家地方联合工程研究中心,江苏南通226019

出　　处：《纺织学报》2024年第12期166-171,共6页Journal of Textile Research

基　　金：江苏省高等学校基础科学(自然科学)研究重大项目(24KJA540002);江苏省青年科技人才托举工程项目(JSTJ-2024-045)。

摘　　要：针对传统细菌检测方法操作步骤复杂、检测时间长、成本高等问题,研制了具有细菌检测功能的医疗卫生用非织造材料。首先制备了普鲁士蓝纳米颗粒(PB NPs),然后利用声化学涂层技术对聚丙烯(PP)纺黏非织造材料进行涂层整理,制得可检测细菌的功能非织造材料,并对其形貌结构、化学成分和细菌检测性能进行分析研究。结果表明:PB NPs形貌呈现明显的立方体结构;声化学涂层后的非织造材料(PP/PB)在与金黄色葡萄球菌和大肠杆菌培养24 h后,可观察到明显的颜色变化,表明其具有优异的细菌检测功能。Objective The breeding and spread of bacteria on medical and hygienic materials are a major threat to human health.Therefore,it is of great significance to develop bacteria detective textile materials with high efficiency and performance.Prussian blue(PB)is a coordination compound with a redox potential high enough to react with proteins and mediators of the bacterial electron transport chain.Besides,it has a high extinction molar coefficient,distinct color change after reduction,which can be used as an indicator of bacterial reduction metabolism.Polypropylene(PP)spunbonded nonwovens have good chemical stability and are not easy to chemically react with Prussian blue or other substances tested,and the large surface area and pores of PP spunbonded nonwovens contribute to the loading of Prussian blue nanoparticles(PB NPs).In this paper,PP spunbonded nonwoven and PB NPs were employed as substrate and coating material respectively to prepare functional nonwoven with bacterial detection function by acoustic chemical coating technology.Method PB NPs were firstly prepared by using polyethylpyrrolidone and potassium ferricyanide as raw materials.Then,polyvinyl alcohol modified PP nonwoven(PP/PVA)was prepared by hydrophilic modification.As the last step,PB NPs were combined onto PP/PVA nonwoven by means of acoustic chemical coating technology to obtain PP/PB nonwoven.Scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FT-IR)and X-ray diffraction(XRD)were used to characterize the morphology,chemical and crystalline structures of PB NPs,PP,PP/PVA and PP/PB nonwovens.Especially,the bacterial detection performance of PP/PB nonwoven was evaluated by oscillating method.Results It was evident from the SEM image that the prepared PB NPs had a regular cubic structure with uniform particle size distribution.The fibers of pure PP nonwoven were arranged dandomly and the fiber surface was smooth and free of impurities,while obvious particles and network adhesion were found on the surface of PP/PVA nonwoven and PP

关 键 词：普鲁士蓝 声化学涂层 非织造材料 细菌检测 

分 类 号：TS101.8[轻工技术与工程—纺织工程] TS102.5[轻工技术与工程—纺织科学与工程]