A novel equipment for making nanocomposites for investigating the antimicrobial properties of nanotextiles

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sergey Bereznenko ◽  
Natalia Bereznenko ◽  
Mykola Skyba ◽  
Dmytro Yakymchuk ◽  
Tetiana Artemenko ◽  
...  
Keyword(s):  
Metal Ions ◽  
Antimicrobial Properties ◽  
Silver Ions ◽  
Material Surface ◽  
Fibrous Materials ◽  
Special Equipment ◽  
Content Type ◽  
Textile Materials ◽  
The Future ◽  
The Creation

PurposeThe purpose of this article is the development of up-to-date equipment for making nanocomposites for investigation of the antimicrobial properties of nanotextiles and the creation of a scientific base to choose materials of clothing with a special purpose.Design/methodology/approachInvestigations are focussed on modifying the surface of textile materials by metal ions nanoparticles (AgJ, CuJ). The work of the equipment is based on the creation of metal nanocomposites in polyethyleneglycol (PEG). It is heated up to a temperature of not more than 130ºС, followed by adding the dispersion of metal in small portions to water. Nanoparticles are uniformly distributed on material surface that provides the improvement of its characteristics.FindingsIt has been found that modifying natural fibrous materials by nanoparticles of metal ions (AgJ, CuJ) promotes increasing their bactericidal and fungicidal properties with a comparison with traditional cotton materials. Microbiological investigations of antimicrobial properties of the cotton fabric have been conducted according to their effects on staphylococcus bacteria, E. coli and fungi.Research limitations/implicationsThis research is limited to cotton fabrics. Therefore, other fabric types can be investigated to expand the data basis in the future.Practical implicationsThe main practical point of developed equipment is that it can be used for obtaining bactericidal and fungicidal properties of natural and fibrous materials modified by nanoparticles of metal ions (AgJ, CuJ). That provides new characteristics of textile materials that can be used in the future for special clothing tailoring.Social implicationsThe use of engineering equipment will allow in perspective to produce clothes with bactericidal and fungicidal properties, which can improve people’s lives through the prism of health and finished product quality.Originality/valueSpecial equipment for investigation of antimicrobial properties of nanomodified textile materials of different kinds has been engineered, and there is an opportunity to create materials with antibacterial and antifungal properties. The application of this equipment provides the receiving of new characteristics for textile materials with silver ions nanoparticles. Such properties of nanomodified materials are useful for human health and can be used in the production of various textile products.

scholarly journals Gold Nanoparticles Synthesis and Antimicrobial Effect on Fibrous Materials

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1067
Author(s):  
Behnaz Mehravani ◽  
Ana Isabel Ribeiro ◽  
Andrea Zille
Keyword(s):  
Gold Nanoparticles ◽  
Antimicrobial Properties ◽  
Antimicrobial Effect ◽  
Environmental Concerns ◽  
Fibrous Materials ◽  
Barrier Material ◽  
Future Studies ◽  
Textile Materials ◽  
Promising Strategy ◽  
Antimicrobial Materials

Depositing nanoparticles in textiles have been a promising strategy to achieve multifunctional materials. Particularly, antimicrobial properties are highly valuable due to the emergence of new pathogens and the spread of existing ones. Several methods have been used to functionalize textile materials with gold nanoparticles (AuNPs). Therefore, this review highlighted the most used methods for AuNPs preparation and the current studies on the topic in order to obtain AuNPs with suitable properties for antimicrobial applications and minimize the environmental concerns in their production. Reporting the detailed information on the functionalization of fabrics, yarns, and fibers with AuNPs by different methods to improve the antimicrobial properties was the central objective. The studies combining AuNPs and textile materials have opened valuable opportunities to develop antimicrobial materials for health and hygiene products, as infection control and barrier material, with improved properties. Future studies are needed to amplify the antimicrobial effect of AuNPs onto textiles and minimize the concerns related to the synthesis.

Using interviews to improve relationships with library partners: a case study

2015 ◽  
Vol 43 (2) ◽  
pp. 251-261 ◽  
Author(s):  
Bridget Farrell
Keyword(s):  
Design Methodology ◽  
Collaborative Work ◽  
Content Type ◽  
New Employees ◽  
Learning Commons ◽  
The Future ◽  
The Commons ◽  
The Creation

Purpose – This paper aims to examine how interviews of learning commons partners were used to improve communication and collaboration between the library and its partners. Design/methodology/approach – Interviews were conducted with representatives from each of the eight partners that have service desks in the library. The interviews’ transcripts were studied to search for ways communication and collaboration between the library and its partners could be improved. Findings – The passing of time, addition of new library partners and the hiring of new employees since the opening of the learning commons at Draughon Library have created some gaps in communication between the library and its partners. Interviews with representatives from the library’s partners revealed ways communication needed to be improved and provided insight as to how the library and its partners might collaborate in the future. Originality/value – Much of the literature on library partnerships focuses on the creation of collaborations, but does not elaborate on ways to keep lines of communication open and encourage continued collaborative work once partnerships are already in place. Information gleaned from the interviews highlights concerns that may occur at other libraries with learning commons, as new partnerships develop and time passes since the initial creation of the commons.

Youngkin's Virginia victory will be hard to replicate

2022 ◽  
Keyword(s):  
Republican Party ◽  
Content Type ◽  
The Future ◽  
Swing Voters ◽  
The Creation

Significance There has been speculation that Youngkin, who generated support from both from former President Donald Trump's camp and moderate Republicans as well as some swing voters last year, may represent the future of the Republican party. However, not all aspects of his campaign are replicable elsewhere. Impacts Of the 36 states holding elections for governor this year, 20 are held by Republicans. Trump will remain central to the Republican party despite a background role in Virginia. Among Democrats, similar speculation about the creation of a new electoral template surrounds Eric Adams, New York’s new mayor.

Prediction of the water evaporation rate of wet textile materials in a pre-defined environment

2020 ◽  
Vol 32 (3) ◽  
pp. 356-365
Author(s):  
Song-Rui Liu ◽  
Xiao-Qun Dai ◽  
Yan Hong
Keyword(s):  
Evaporation Rate ◽  
Water Evaporation ◽  
Material Surface ◽  
Wind Condition ◽  
Temperature Decrease ◽  
Content Type ◽  
Textile Materials ◽  
Maximum Water ◽  
The Difference ◽  
Practical Implications

Purpose The water evaporation rate (WER) is not only crucial for fabric drying, but also an important parameter affecting cooling from a body wearing sweat wetted clothing. The purpose of this paper is to predict the WERs of wet textile materials in a pre-defined environment. Design/methodology/approach The maximum water evaporation rate (WERmax) from a saturated surface in a pre-defined environment was first predicted based on the Lewis relationship between the evaporative and the convective heat transfer in this paper. The prediction results were validated by the comparisons with experimental measurements in various environments obtained in this paper and reported in the literature. Findings Experiment results show that the ratios of WERs to WERmax are lower than 100 percent but higher than 50 percent, which confirmed that the prediction of WERmax is reliable. The temperature decrease of the wet material surface due to evaporation was considered to account for the difference between measured WERs and the WERmax, and the WER variation among materials. The lower ratios of WERs to WERmax in the higher wind condition were speculated to be due to the greater temperature decrease caused by the increased evaporation. Practical implications It provides a reliable way to obtain both WERmax and WER (WERmax multiplied by a proper ratio), which can be useful in clothing physiological modeling to predict clothing comfort. Originality/value This study contributes to the understanding of the evaporation process of textile materials.

scholarly journals Development of a polymer composition to protect textile material from bio-damage

2021 ◽  
pp. 43-46
Author(s):  
A. Burkitbay ◽  
V. M. Satayeva
Keyword(s):  
Mechanical Properties ◽  
Polyvinyl Alcohol ◽  
Antimicrobial Properties ◽  
Physical And Mechanical Properties ◽  
Silver Ions ◽  
Operating Conditions ◽  
Textile Material ◽  
Polymer Composition ◽  
Negative Effects ◽  
Textile Materials

The article presents a method for increasing the microbiological resistance of textile materials under operating conditions. Studies were conducted using polyvinyl alcohol (PVA), maleic acid (MA) and a solution of silver ions (SI). This fabric was treated with an dressing composition to improve the antimicrobial properties of the textile material. In addition, research has been conducted to identify the physical and mechanical properties of samples treated with different concentrations of dressing composition, to prevent negative effects on the protection function and practicality of wear. The study revealed the most optimal concentrations of the composition components: PVA - 8 g/l, SI - 50 ml/l, MA - 5 g/l.

scholarly journals Biodegradable Synthetic Polymers in Textiles – What Lies Beyond PLA and Medical Applications? A Review.

Tekstilec ◽  
2021 ◽  
Vol 64 (1) ◽  
pp. 32-46
Author(s):  
Thomas Grethe ◽  
Keyword(s):  
Biodegradable Polymers ◽  
Raw Materials ◽  
Production Costs ◽  
Special Focus ◽  
Fibrous Materials ◽  
Biotechnological Production ◽  
Coating Materials ◽  
Textile Materials ◽  
Technical Textiles ◽  
The Future

Biodegradable polymers are currently discussed for applications in different fields and are becoming of increasing interest in textile research. While a plethora of work has been done for PLA in medical textiles, other biodegradable polymers and their textile application fields are studied less often, presumably due to higher costs and fewer market opportunities. However, some are emerging from research to pilot scale, and are already utilized commercially in packaging and other sectors but not, unfortunately, in textiles. The commercialisation of such polymers is fuelled by improved biotechnological production processes, show¬ing that textile applications are increasingly conceivable for the future. Additionally, commonly accepted definitions for biodegradability are probably misleading, if they are used to estimate the environmental burden of waste management or recycling of such materials. In this review, the current state of research in the field of biodegradable polymers for the application in textile materials is presented to identify emerging developments for new textile applications. It was clearly seen that PLA is most dominant in that field, while others facilitate new options in the future. The production costs of raw materials and the current patent situation are also evaluated. A special focus is placed on fibre raw materials, coatings, and additives for clothing and technical textiles. Fibre-reinforced composites are excluded, since polymers applied for the matrix component require very different properties compared to the textile materials. This represents a topic to be discussed separately. As a result, these new biodegradable polymers might serve as interesting coating materials for textiles that seem to sneak on to the textile market, as the patent search for such coating formulations suggests. Moreover, new biodegradable fibrous materials for clothing applications can be suggested, but some material properties must be addressed to render them processable on common textile machines.

scholarly journals Synergistic Combination of Chitosan Acetate with Nanoparticle Silver as a Topical Antimicrobial: Efficacy against Bacterial Burn Infections

2011 ◽  
Vol 55 (7) ◽  
pp. 3432-3438 ◽  
Author(s):  
Liyi Huang ◽  
Tianhong Dai ◽  
Yi Xuan ◽  
George P. Tegos ◽  
Michael R. Hamblin
Keyword(s):  
Survival Rates ◽  
Antimicrobial Properties ◽  
Silver Ions ◽  
Antimicrobial Efficacy ◽  
Bacterial Cells ◽  
Content Type ◽  
Freeze Dried ◽  
Topical Antimicrobial

ABSTRACTChitosan and nanoparticle silver are both materials with demonstrated antimicrobial properties and have been proposed singly or in combination as constituents of antimicrobial burn dressings. Here, we show that they combine synergistically to inhibit thein vitrogrowth of Gram-positive methicillin-resistantStaphylococcus aureus(MRSA) and Gram-negative bacteria (Pseudomonas aeruginosa,Proteus mirabilis, andAcinetobacter baumannii), as judged by bioluminescence monitoring and isobolographic analysis, and also produce synergistic killing after 30 min of incubation, as measured by a CFU assay. The hypothesized explanation involves chitosan-mediated permeabilization of bacterial cells, allowing better penetration of silver ions into the cell. A dressing composed of freeze-dried chitosan acetate incorporating nanoparticle silver was compared with a dressing of chitosan acetate alone in anin vivoburn model infected with bioluminescentP. aeruginosa. The survival rates of mice treated with silver-chitosan or regular chitosan or left untreated were 64.3% (P= 0.0082 versus regular chitosan andP= 0.0003 versus the control), 21.4%, and 0%, respectively. Most of the fatalities occurred between 2 and 5 days postinfection. Silver-chitosan dressings effectively controlled the development of systemic sepsis, as shown by blood culture. These data suggest that a dressing combining chitosan acetate with silver leads to improved antimicrobial efficacy against fatal burn infections.

ASO GUMBALO SEBAGAI INSPIRAS DALAM PENCIPTAAN SENI LUKIS

2018 ◽  
Vol 7 (2) ◽  
pp. 178
Author(s):  
Satri Yadi ◽  
Yuniarti Munaf ◽  
Dhasono Dhasono
Keyword(s):  
Design Phase ◽  
Symbolic Expression ◽  
Ethical Research ◽  
Process Stage ◽  
Form Processing ◽  
The Future ◽  
The Creation ◽  
Visual Strategies ◽  
Work Done ◽  
Exploration Phase

AbstrakAso Gumbalo dalam penciptaan karya seni lukis diilhami dari kehidupan pengembala yang menjadi inspirasi pencipta yang diungkap melalui media seni lukis dengan mengambil ide “Harapan Pengembala” (Aso Gumbalo). Harapan Gembala dapat diartikan sebagai keinginan, kecendrungan dan dorongan hati yang kuat terhadap sesuatu hal yang ingin direalisasikan untuk menjadikan seorang lebih baik dimasa depan. Pengekspresian ide cipta berangkat dari fenomena Aso Gumbalo yang pencipta ungkap dengan ekspresi simbolik kedalam penciptaan karya seni lukis. Metode penciptaan karya ini melalui tahapan yaitu; 1) Tahap eksplorasi adalah tahap pencarian ide-ide dengan melakukan riset emik dan etik untuk pembuatan karya, 2) Tahap perancangan yaitu tahap pembuatan purwarupa yang akan diwujudkan kedalam bentuk karya seni lukis, 3) Tahap proses garapan karya. Konsep dari penciptaan karya merupakan ekspresi simbolik dengan memanfaatkan idiom tradisi, ekspresi tersebut digambarkan pada perwujudan karya menggunakan strategi media dan strategi visual dengan menggunakan konsep pengolahan bentuk, yaitu disformasi dan transformasi dengan melakukan penggabungan beberapa teknik antara lain, teknik plakat, transparan, tekstur semu dan tekstur nyata. Aso Gumbalo sebagai inspirasi yang diungkapkan dalam bentuk karya seni lukis ekspresi simbolik. Karya-karya yang diciptakan pengkarya disajikan dalam bentukpameran.           Kata Kunci:aso gumbalo, ekspresi simbolik, seni lukis.   AbstractAsoGumbalo in the creation of painting works was inspired from the life of the shepherd who became the inspiration of the creator which revealed through the medium of painting by taking the idea of "Hope of the Shepherd" (AsoGumbalo). Shepherd Hope can be interpreted as a strong desire, inclination and encouragement towards something that wants to be realized to make someone better in the future. The expression of copyrighted ideas departs from the phenomenon of AsoGumbalo, which the creator expressed with a symbolic expression into the creation of painting. This method of creating works through several stages, namely; 1) The exploration phase is the stage of searching for ideas by conducting emic and ethical research for the production of works, 2) the design phase that is the prototype-making stage which will be realized in the form of painting, 3) the process stage of the work done. The concept of creation of works is a symbolic expression by utilizing traditional idioms, these expressions are depicted in the realization of the work using media strategies and visual strategies by using the concept of form processing, namely deformation and transformation by combining several techniques, such as plaque, transparent, pseudo-texture and real texture. AsoGumbalo as an inspiration expressed in the form of paintings of symbolic expression. works created by artists are presented in the form of exhibitions.  Keywords:asogumbalo, symbolic expression, painting.  

A Rapture of the Nerds? A Comparison between Transhumanist Eschatology and Christian Parousia

2019 ◽  
Vol 24 (2) ◽  
pp. 343-367
Author(s):  
Roberto Paura
Keyword(s):  
Human Brain ◽  
Point Theory ◽  
The Body ◽  
Christian Theology ◽  
Human Beings ◽  
Human Species ◽  
The Future ◽  
The Creation ◽  
The Universe

Transhumanism is one of the main “ideologies of the future” that has emerged in recent decades. Its program for the enhancement of the human species during this century pursues the ultimate goal of immortality, through the creation of human brain emulations. Therefore, transhumanism offers its fol- lowers an explicit eschatology, a vision of the ultimate future of our civilization that in some cases coincides with the ultimate future of the universe, as in Frank Tipler’s Omega Point theory. The essay aims to analyze the points of comparison and opposition between transhumanist and Christian eschatologies, in particular considering the “incarnationist” view of Parousia. After an introduction concern- ing the problems posed by new scientific and cosmological theories to traditional Christian eschatology, causing the debate between “incarnationists” and “escha- tologists,” the article analyzes the transhumanist idea of mind-uploading through the possibility of making emulations of the human brain and perfect simulations of the reality we live in. In the last section the problems raised by these theories are analyzed from the point of Christian theology, in particular the proposal of a transhuman species through the emulation of the body and mind of human beings. The possibility of a transhumanist eschatology in line with the incarnationist view of Parousia is refused.

Welcome to the marriage of human capability and artificial intelligence

2019 ◽  
Vol 19 (1) ◽  
pp. 10-14
Author(s):  
Ryan Scott ◽  
Malcolm Le Lievre
Keyword(s):  
Artificial Intelligence ◽  
Team Building ◽  
Workplace Change ◽  
Content Type ◽  
The Future ◽  
Human Capability ◽  
Mind Set ◽  
Future Work ◽  
Crucial Part ◽  
Practical Implications

Purpose The purpose of this paper is to explore insights methodology and technology by using behavioral to create a mind-set change in the way people work, especially in the age of artificial intelligence (AI). Design/methodology/approach The approach is to examine how AI is driving workplace change, introduce the idea that most organizations have untapped analytics, add the idea of what we know future work will look like and look at how greater, data-driven human behavioral insights will help prepare future human-to-human work and inform people’s work with and alongside AI. Findings Human (behavioral) intelligence will be an increasingly crucial part of behaviorally smart organizations, from hiring to placement to adaptation to team building, compliance and more. These human capability insights will, among other things, better prepare people and organizations for changing work roles, including working with and alongside AI and similar tech innovation. Research limitations/implications No doubt researchers across the private, public and nonprofit sectors will want to further study the nexus of human capability, behavioral insights technology and AI, but it is clear that such work is already underway and can prove even more valuable if adopted on a broader, deeper level. Practical implications Much “people data” inside organizations is currently not being harvested. Validated, scalable processes exist to mine that data and leverage it to help organizations of all types and sizes be ready for the future, particularly in regard to the marriage of human capability and AI. Social implications In terms of human capability and AI, individuals, teams, organizations, customers and other stakeholders will all benefit. The investment of time and other resources is minimal, but must include C-suite buy in. Originality/value Much exists on the softer aspects of the marriage of human capability and AI and other workplace advancements. What has been lacking – until now – is a 1) practical, 2) validated and 3) scalable behavioral insights tech form that quantifiably informs how people and AI will work in the future, especially side by side.

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