现代纺织技术2025，Vol.33Issue(5)：56-64,9.DOI:10.19398∕j.att.202407032
足-袜微环境中短柄帚霉的生物腐蚀性
Study on biological corrosion of Scopulariopsis brevicaulis in foot-sock microenvironment
摘要
Abstract
Currently,cotton fabrics are widely used in the sock industry due to their skin-friendly softness,excellent moisture absorption,and breathability.However,cotton socks are prone to microbial growth during wearing,as the hot and humid wearing environment greatly facilitates the rapid reproduction of fungi and bacteria.The proliferation of various fungi not only adversely affects the cotton sock fabric but,more importantly,poses a threat to foot health.Scopulariopsis brevicaulis is an ubiquitous opportunistic pathogen and one of the common pathogens causing onychomycosis of the foot. In this study,Scopulariopsis brevicaulis isolated and purified from worn cotton socks was inoculated onto pure cotton white socks and human nail plates to investigate its corrosive effects on cotton fibers and nail plates.SEM,FT-IR and XRD tests were conducted on the cotton socks corroded by Scopulariopsis brevicaulis under three different conditions to analyze the damage to the cotton fabric before and after corrosion.The results indicated that the cotton sock fabric was most severely corroded under nutrient-rich conditions.SEM images revealed extensive longitudinal stripes and gullies on the surface of the cotton fibers,along with severe adhesion between fibers.The results of FT-IR and XRD showed that some of the 1,4-glycosidic bonds within the corroded fibers broke,and the crystallinity of the fibers decreased from 54.54%to 45.51%.In addition,tensile tests were performed on the cotton yarn before and after corrosion,which showed a 68%reduction in yarn breakage.Besides,the penetration ability of different concentrations of Scopulariopsis brevicaulis solution to healthy nail plates was studied by constructing a fungal nail penetration model.The results showed that the bacterial solution of 1×104 CFU/mL,1×106 CFU/mL and 1×108 CFU/mL were all capable of penetrating the nail plates.Among these,the condition of 1×108 CFU/mL exhibited the shortest nail penetration time,requiring only two days.Furthermore,by observing SEM images of the eroded nail plates,it was evident that Scopulariopsis brevicaulis caused severe damage to the keratinocytes on the dorsal surface of the nail plates,with numerous pores and gaps appearing on the surface.Some hyphae even directly penetrated through the nail plates. Therefore,all the above experiments indicate that Scopulariopsis brevicaulis exhibits certain corrosive properties towards both cotton sock fabrics and human nail plates.Conducting research on the biological corrosion of Scopulariopsis brevicaulis in the foot-sock microenvironment provides basic support for its targeted inhibition.关键词
短柄帚霉/棉袜/甲板/透甲模型/微生物腐蚀Key words
Scopulariopsis brevicaulis/cotton socks/nail plates/nail penetration model/microbiological corrosion分类
轻工业引用本文复制引用
王梦娣,任泽华,王婷霞,刘建立..足-袜微环境中短柄帚霉的生物腐蚀性[J].现代纺织技术,2025,33(5):56-64,9.基金项目
江苏省研究生科研与实践创新计划项目(SJCX22_1109) （SJCX22_1109）
