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Katie Laird - One of the best experts on this subject based on the ideXlab platform.
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development of a silver based dual function Antimicrobial laundry additive and Textile coating for the decontamination of healthcare laundry
Journal of Applied Microbiology, 2021Co-Authors: Lucy Owen, Katie LairdAbstract:AIMS To repurpose a silver-based Antimicrobial Textile coating product (Micro-Fresh 1911) as a dual-function Antimicrobial laundry additive and Textile coating. METHODS AND RESULTS Survival of Escherichia coli or Staphylococcus aureus type and clinical isolates in a domestic 40°C wash was assessed with and without soiling and biological detergent. Washing with 2% w/v silver additive (wash phase) reduced E. coli and S. aureus by 7·14-8·08 log10 and no cross-contamination was observed. Under dirty conditions, 0·5% silver additive in the rinse phase of a wash with biological detergent reduced E. coli and S. aureus by 7·98-8·40 log10 (0·00-1·42 log10 cross contamination). BS EN ISO 20645:2004 and BS EN ISO 20743:2013 methods were used to assess the Antimicrobial activity of polycotton washed with 2% w/v silver additive against S. aureus and E. coli. The treated polycotton was Antimicrobial against E. coli and S. aureus type and clinical isolates and remains active after at least one further wash cycle at 40 or 73°C. CONCLUSIONS The silver additive exhibits Antimicrobial activity in a 40°C domestic wash, preventing cross contamination onto clean Textiles and depositing an Antimicrobial coating onto polycotton. SIGNIFICANCE AND IMPACT OF THE STUDY The survival of micro-organisms on healthcare uniforms during domestic laundering presents a potential risk of contaminating the home, cross-contamination of other clothing within the wash and transmitting potential pathogens back into healthcare settings via contaminated uniforms. Silver may be useful as an Antimicrobial laundry additive to decontaminate healthcare laundry washed at low temperatures in domestic and industrial settings, to therefore reduce the potential risk of transmitting micro-organisms within the domestic and clinical environments.
Lucy Owen - One of the best experts on this subject based on the ideXlab platform.
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development of a silver based dual function Antimicrobial laundry additive and Textile coating for the decontamination of healthcare laundry
Journal of Applied Microbiology, 2021Co-Authors: Lucy Owen, Katie LairdAbstract:AIMS To repurpose a silver-based Antimicrobial Textile coating product (Micro-Fresh 1911) as a dual-function Antimicrobial laundry additive and Textile coating. METHODS AND RESULTS Survival of Escherichia coli or Staphylococcus aureus type and clinical isolates in a domestic 40°C wash was assessed with and without soiling and biological detergent. Washing with 2% w/v silver additive (wash phase) reduced E. coli and S. aureus by 7·14-8·08 log10 and no cross-contamination was observed. Under dirty conditions, 0·5% silver additive in the rinse phase of a wash with biological detergent reduced E. coli and S. aureus by 7·98-8·40 log10 (0·00-1·42 log10 cross contamination). BS EN ISO 20645:2004 and BS EN ISO 20743:2013 methods were used to assess the Antimicrobial activity of polycotton washed with 2% w/v silver additive against S. aureus and E. coli. The treated polycotton was Antimicrobial against E. coli and S. aureus type and clinical isolates and remains active after at least one further wash cycle at 40 or 73°C. CONCLUSIONS The silver additive exhibits Antimicrobial activity in a 40°C domestic wash, preventing cross contamination onto clean Textiles and depositing an Antimicrobial coating onto polycotton. SIGNIFICANCE AND IMPACT OF THE STUDY The survival of micro-organisms on healthcare uniforms during domestic laundering presents a potential risk of contaminating the home, cross-contamination of other clothing within the wash and transmitting potential pathogens back into healthcare settings via contaminated uniforms. Silver may be useful as an Antimicrobial laundry additive to decontaminate healthcare laundry washed at low temperatures in domestic and industrial settings, to therefore reduce the potential risk of transmitting micro-organisms within the domestic and clinical environments.
Iva Rezic - One of the best experts on this subject based on the ideXlab platform.
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synthesis modification and characterization of Antimicrobial Textile surface containing zno nanoparticles
Polymers, 2020Co-Authors: Martinaga L Pintaric, Somogi M Skoc, Ljoljic V Bilic, Ivan Pokrovac, Ivan Kosalec, Iva RezicAbstract:In this research, a Textile surface was modified by the sol–gel methodology with a new Antimicrobial coating containing nanoparticles active against bacteria resistant to antibiotics. The effect of ultrasonic irradiation power (40 to 90 kHz), the concentration of reagents (nanoparticles, precursor and acids) and time (15 to 72 min) were investigated in relation to the structure, morphology and Antimicrobial activity of coatings with zinc oxide nanoparticles. The relationship between the sonocatalytic performance and structure of the resultant modification was established by using various techniques, such as FTIR spectroscopy (FTIR) and scanning electron microscopy with an EDX detector (SEM-EDX), thin-layer chromatography (TLC) and Antimicrobial effects were determined on selected model microorganisms. The homogeneity of layers with ZnO nanoparticles on samples was increased by increasing the ultrasonic irradiation power and time. The ultrasonic irradiation unify did not only unify both the structure and the morphology of samples, it also prevented the agglomeration of the nanoparticles. Moreover, under optimal conditions, an Antimicrobial coating with ZnO nanoparticles, active against bacterial species S. aureus and E. coli was efficiently prepared. Results of the Time-kill methodology revieled excellent results starting after 6 hours of exposal to Antimicrobialy functionalized cellulose polymer.
Laird Katie - One of the best experts on this subject based on the ideXlab platform.
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Dual-Function Antimicrobial Laundry Supplement and Textile Coating for the Decontamination of Healthcare Laundry
2020Co-Authors: Owen Lucy, Laird KatieAbstract:Background: In the UK nurses’ uniforms are domestically laundered, posing a threat of cross contamination of healthcare-associated infections. The UK Department of Health recommends washing uniforms at 60ºC, however nurses most commonly wash them at 40ºC. Bacteria survive on Textiles washed at low temperatures; 4.28-4.62 log10 Escherichia coli and Staphylococcus aureus survived washing at 40ºC and cross contaminated other Textiles in the wash. Antimicrobial laundry supplements could sanitise Textiles and limit cross-contamination. A supplement that deposits an antibacterial coating onto Textiles could also reduce contamination between washes. This study aimed to investigate a silver-based Antimicrobial Textile coating product (Micro-Fresh 1911) as a dual-use Antimicrobial laundry supplement and Textile coating. Materials/methods: Polycotton inoculated with 108 CFU/mL E. coli or S. aureus (type and clinical isolates) were washed with 2% Micro-Fresh 1911 in a domestic washing machine (40°C) and surviving microorganisms enumerated. Washes were conducted with and without soiling and biological detergent. Control washes were water alone. The Antimicrobial activity of polycotton washed with Micro-Fresh 1911 at 40°C was assessed against S. aureus and E. coli using ISO 20645 and ISO 20743 methods. Controls were polycotton washed in water and Textile padded with Micro-Fresh 2611. Results: Washing with Micro-Fresh 1911 reduced E. coli and S. aureus by 7.14-8.08 log10. No cells were recovered from sterile Textile, whereas washing with water alone reduced E. coli and S. aureus by 2.21-4.25 log10 and resulted in 3.13-4.01 log10 CFU cross-contamination. Combining Micro-Fresh 1911 with biological detergent reduced E. coli and S. aureus by 5.56-6.65 log10. Fabric washed with Micro-Fresh 1911 was Antimicrobial against E. coli and S. aureus type and clinical isolates according to ISO 20645 and ISO 20743. The Antimicrobial coating remained after washing the fabric in water once at 40°C and 73°C. Conclusions: Micro-Fresh 1911 exibits Antimicrobial activity in a 40ºC domestic wash and deposits an Antimicrobial layer onto polycotton. Micro-Fresh could be employed as an Antimicrobial laundering product to reduce microbial contamination of healthcare laundry washed at low temperatures
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Development of a Silver-Based Dual-Function Antimicrobial Laundry Additive and Textile Coating for the Decontamination of Healthcare Laundry
'Wiley', 2020Co-Authors: Owen Lucy, Laird KatieAbstract:The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.open access articleAims: To repurpose a silver-based Antimicrobial Textile coating product (Micro-Fresh 1911) as a dual-function Antimicrobial laundry additive and Textile coating. Methods and Results: Survival of Escherichia coli or Staphylococcus aureus type and clinical isolates in a domestic 40°C wash was assessed with and without soiling and biological detergent. Washing with 2% w/v silver additive (wash phase) reduced E. coli and S. aureus by 7.14-8.08 log10 and no cross-contamination was observed. Under dirty conditions, 0.5% silver additive in the rinse phase of a wash with biological detergent reduced E. coli and S. aureus by 7.98-8.40 log10 (0.00-1.42 log10 cross contamination). ISO 20645:2006 and ISO 20743:2013 methods were used to assess the Antimicrobial activity of polycotton washed with 2% w/v silver additive against S. aureus and E. coli. The treated polycotton was Antimicrobial against E. coli and S. aureus type and clinical isolates and remains active after at least one further wash cycle at 40°C or 73°C. Conclusions: The silver additive exhibits Antimicrobial activity in a 40°C domestic wash, preventing cross contamination onto clean Textiles and depositing an Antimicrobial coating onto polycotton. Significance and Impact of Study: The survival of microorganisms on healthcare uniforms during domestic laundering presents a potential risk of contaminating the home, cross-contamination of other clothing within the wash and transmitting potential pathogens back into healthcare settings via contaminated uniforms. Silver may be useful as an Antimicrobial laundry additive to decontaminate healthcare laundry washed at low temperatures in domestic and industrial settings, to therefore reduce the potential risk of transmitting microorganisms within the domestic and clinical environments
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Novel green Antimicrobial Textile coatings for use in the healthcare and sport arenas
Society for Applied Microbiology, 2015Co-Authors: Ogbechie A., Abioye A. O., Shen Jinsong, Laird KatieAbstract:Aims To develop a novel green microencapsulation process for Textile Antimicrobial coating for the treatment of medical and sports related skin conditions and malodour, which will: • incorporate eco-friendly microcapsule wall materials (biodegradable polymers). • provide controlled release of the core material (essential oils). • exclude toxic substances. Methods and results The essential oils (EOs), Litsea, Lemon, Rosewood, Rosemary, Bergamot, Citronella, Sweet Orange, Bitter Orange, Peppermint and Thyme oil were screened by the disc diffusion method against Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Staphylococcus epidermidis. The most effective oil was Litsea oil, with an average zone of inhibition (ZoI) of 4.7 cm, 2.0 cm, 5.3 cm and 4.3 cm against S. aureus, P. aeruginosa, E. coli and S. epidermidis respectively. Lemon and Rosemary were the only other EOs which were found to be effective against P. aeruginosa with mean ZoI’s of 2.1cm and 2.4 cm respectively, as well as inhibiting the other 3 bacteria. S.aureus was the most susceptible organism being inhibited by all EOs; P. aeruginosa in turn was the most resistant to the EOs. Conclusions Litsea, Lemon and Rosemary EOs were the most inhibitory oils screened, therefore, the Minimum Inhibitory Concentrations (MIC) for these EOs will be determined and they will also be screened against the dermatophyte Trichophyton rubrum. Significance of study Increased awareness of the Textiles industries’ impact on the environment, creates a need for new green processes using eco-friendly materials. The use of EOs as the core material of microcapsules in Textile coatings, could lead to an effective Textile coating which is not only green but also functional in the treatment of medical or sports related skin conditions. This innovative delivery system will go some way to alleviate infections such as athlete’s foot, body odour caused by sweat and atopic eczema
Oris Mahltig - One of the best experts on this subject based on the ideXlab platform.
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synthesis and characterization of Antimicrobial Textile finishing based on ag zno nanoparticles chitosan biocomposites
RSC Advances, 2015Co-Authors: Mariana Usilă, Viorica Musa, Torste Texto, Oris MahltigAbstract:ZnO and Ag:ZnO nanoparticles were prepared by hydrolysis of zinc acetate in the presence of lithium hydroxide (LiOH). In combination with binders based on hybrid polymer sols, these metal oxide materials were applied for Textile treatment. Hybrid coatings based on ZnO, Ag:ZnO/CS, chitosan (CS), 3-glycidyloxypropyltrimethoxysilane (GPTMS) and tetraethoxysilane (TEOS) prepared by sol–gel method were applied on cotton 100% and cotton/polyester (50/50%) Textiles using “pad-dry-cure” technique. The obtained nanoparticles incorporated within chitosan matrix were characterised by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), UV-Vis spectroscopy and field emission scanning electron microscopy (FE-SEM). The Antimicrobial activity of Ag/CS, ZnO/CS and Ag:ZnO/CS composite coatings was investigated in comparison to that of the pure chitosan using the paper disc method on Mueller-Hinton agar, against the Gram-negative E. coli and the Gram-positive S. aureus bacteria. For the same composite coatings applied on Textile, the Antimicrobial activity was investigated by UV-Vis absorption spectroscopy using TTC method, against the bacteria E. coli and M. luteus. The investigated nanocomposite materials showed good Antimicrobial activity and are promising materials for use as medical applications.