Antibacterial and Washing Resistance Improvement of Cotton Fabric Using Some Metal Oxides

Cu2O, CuO, ZnO-microparticles with different size and morphology directly influences their antimicrobial potential. In this study, the possible improvement of the antibacterial and washing resistance up to 20 washing cycles performance of 100% cotton fabrics were investigated. At high temperatures, carboxylic acids form ester-type crosslinking with cellulose molecules and provide antibacterial activity. For this purpose, carboxylic acids such as BTCA and CA were used in this study.The purpose of this research was to evaluate 1,2,3,4-butantetracarboxylic acid (BTCA) and citric acid monohydrate (CA) as an crosslinking agent for washing resistance of 100% cotton textile substrates against, Staphylococcus aureus (ATCC 43300), Bacillus subtilis (NRRL NRS -744), Escherichia coli (ATCC 35218) and Klebsiella pneumoniae (ATCC 70063). Cupper oxide and zinc oxide were assimilated in the coating bath for the antibacterial property. BTCA concentration in the solutions influenced the antibacterial and washing properties of the cotton fabrics. The Fourier Transform Infra-Red -Attenuated Total Reflection (FTIR-ATR) spectra showed a new summit that confirmed the ester linkage formation and crosslinking reaction for application.Namik Kemal University Scientific Research Projects CommissionNamik Kemal University [NKUBAP.06, 16.064]This work was supported by the Namik Kemal University Scientific Research Projects Commission (NKUBAP.06.GA.16.064

Do we really need to coat the novel silicone intranasal splints with antibiotics?

24th European Congress of Clinical Microbiology and Infectious Diseases (ECCMID) -- MAY 10-13, 2014 -- Barcelona, SPAINPurpose: The novel silicone intranasal splints are suggested to resist biofilm formation due to their surface characteristics. We aimed to ascertain the necessity of coating these splints with antibiotics to prevent splint associated infections, in vitro. Materials and methods: Pieces of Doyle II airway nasal splints made of medical grade silicone were divided into two test groups, treated with either (i) 0.2% nitrofurazone solution or (ii) 0.2% nitrofurazone containing ointment, and a control group, treated with (iii) 0.9% saline. Splint pieces were then incubated with Staphylococcus aureus solutions at 37 degrees C for 48 and 96 h. Following this, the splint pieces were incubated in 20 ml Mueller Hinton agar and appearing colonies were counted. Results: Following 48 and 96 h of incubation, the colonization rates in the saline group were significantly higher than the nitrofurazone ointment group (p < 0.001). The colonization rates in the liquid nitrofurazone group were significantly lower in comparison to the nitrofurazone ointment group (p < 0.001 and p = 0.019 respectively). Conclusions: The method of coating the splints with antibiotic was superior to using uncoated splints in terms of preventing S. aureus colonization. The rather smooth surfaces of the splints were insufficient to block bacterial colonization and coating them with antibiotics seems to be beneficial for the prevention of infections. (C) 2016 Elsevier Inc. All rights reserved