Antimicrobial properties of silver-containing wound dressings: a microcalorimetric study

O'Neill, M; Vine, George J.; Beezer, Anthony E.; Bishop, Alistair H.; Hadgraft, Jonathan; Labetoulle, Chloé; Walker, Michael G.; Bowler, Philip G

doi:10.1016/s0378-5173(03)00361-2

Cited by 85 publications

(30 citation statements)

References 10 publications

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“…It is also known to exhibit superb inhibitory effects on algal growth. Silver in ionic state is known to exhibit high antimicrobial activity (Kim et al 1998 ;O'Neill et al 2003 ;Thomas and McCubin 2003 ). However, ionic silver is unstable due to its high reactivity and thus gets easily oxidized or reduced into a metal with no antimicrobial activity.…”

Section: Silvermentioning

confidence: 99%

Understanding the Role of Nanomaterials in Agriculture

Dwivedi

Saquib

Al‐Khedhairy

et al. 2016

Microbial Inoculants in Sustainable Agricultural Productivity

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Nanotechnology offers immense opportunities for improvement in the quality of life through applications in agriculture and the food systems. Development of nanotechnology-based novel agro-products, viz., nanosensors, nano-fertilizers, nano-pesticides and nanoformulations of biocontrol agents, is currently a subject of intense investigation. A variety of nanomaterials has been recommended for use in agriculture, in order to help reduce the consumption of agrochemicals by use of smart delivery systems, minimize the nutrient losses and increase the yield through optimized water and nutrients management. Nanotechnology-derived devices have also been explored in the areas of plant breeding and genetics. Additionally, the agricultural products and/or by-products can be utilized as a source for developing bio-nanocomposites. Nevertheless, the potential advantages of nanotechnology applications in the agricultural sector are still marginal, and have not been commercialized to a signifi cant extent, as compared to other industrial sectors. Researches in the area of agricultural nanotechnology are being extensively pursued in quest for the solutions to the agricultural and environmental challenges, such as sustainability, increased productivity, disease management and crop protection through innovative techniques for monitoring, assessing and controlling the agricultural practices. This chapter provides a basic knowledge about the role of nanotechnology in developing sustainable agriculture and environment, and eventually in the welfare of human society, at large, in the near future.

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Section: Silvermentioning

confidence: 99%

Understanding the Role of Nanomaterials in Agriculture

Dwivedi

Saquib

Al‐Khedhairy

et al. 2016

Microbial Inoculants in Sustainable Agricultural Productivity

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“…In addition, the nanosized silicasilver manifests efficient controlling effects at low concentrations and may maintain the controlling effects for a long period after a single application. Furthermore, the nanosized silica-silver does not cause chemical injuries and is non-toxic to the human body (O'Neill et al 2003) as well as plants, even with a high concentration. It was found that the nanosized silica-silver's character provides a composition for controlling pathogenic pathogens in plants.…”

Section: Control Efficiency Of Nano Sio 2 On Fungi and Fungal Diseasesmentioning

confidence: 99%

Nanotechnology in agriculture, livestock, and aquaculture in China. A review

Huang

Wang

Liu

et al. 2014

Agron. Sustain. Dev.

258

120

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Nanoscience emerged in the late 1980s and is developed and applied in China since the middle of the 1990s. Although nanotechnologies have been less developed in agronomy than other disciplines, due to less investment, nanotechnologies have the potential to improve agricultural production. Here, we review more than 200 reports involving nanoscience in agriculture, livestock, and aquaculture. The major points are as follows: (1) nanotechnologies used for seeds and water improved plant germination, growth, yield, and quality. (2) Nanotechnologies could increase the storage period for vegetables and fruits. (3) For livestock and poultry breeding, nanotechnologies improved animals immunity, oxidation resistance, and production and decreased antibiotic use and manure odor. For instance, the average daily gain of pig increased by 9.9-15.3 %, the ratio of feedstuff to weight decreased by 7.5-10.3 %, and the diarrhea rate decreased by 55.6-66.7 %. (4) Nanotechnologies for water disinfection in fishpond increased water quality and increased yields and survivals of fish and prawn. (5) Nanotechnologies for pesticides increased pesticide performance threefold and reduced cost by 50 %. (6) Nano urea increased the agronomic efficiency of nitrogen fertilization by 44.5 % and the grain yield by 10.2 %, versus normal urea. (7) Nanotechnologies are widely used for rapid detection and diagnosis, notably for clinical examination, food safety testing, and animal epidemic surveillance. (8) Nanotechnologies may also have adverse effects that are so far not well known.

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“…The peaks and troughs in the thermogenic curves were considered as the characteristics of organism growth in complex medium with restricted oxygen availability and can be used, as finger print, to identify bacteria [22] . O' Nill et al [23] thought that the first exponential phase in the thermogenic curve of S. aureus represents aerobic metabolism, then followed by a change to anaerobic metabolism. In our experiment, stop-flow method was adopted and there was a little oxygen in the system, so the bacteria underwent successively aerobic respiration and fermentation in the whole growth and metabolism course.…”

Section: The Thermogenic Curve Of S Aureusmentioning

confidence: 99%

Antibacterial activity and structure-activity relationships of Schiff bases on Staphylococcus aureus by microcalorimetry

Hou

Zhu

et al. 2010

Wuhan Univ. J. Nat. Sci.

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The growth of Staphylococcus aureus under the action of six kinds of Schiff bases (A, B, C, D, E, F) was studied by means of microcalorimetry. Growth constant k and inhibition ratio I were calculated. Also, the antibacterial activity, the action characteristics and the structure-activity relationships of the compounds on S. aureus were analyzed. Results indicate that B, F show good antibacterial activity (IC 50 : 293.6 mg • L −1 and 307.8 mg • L −1 ), D, E show moderate antibacterial activity (IC 50 : 966.3 mg • L −1 and 1 126.7 mg • L −1 ), and A, C just show weak antibacterial activity (IC 50 ∨ 1 200 mg • L −1 ). The I-c curves mainly present a straight line shape for B, D, E and F, but an inverse "S" shape for A and C. Structure-activity relationships analysis suggests that the species and position of the substituents determine the antibacterial activity of these Schiff bases, and the charge density distribution is one of the most important influencing factors.Since it has become a pressing issue of human health that drug-resistant bacterial pathogens appear and spread quickly within the global range [1][2][3][4] , the need for the discovery of novel antibacterial agents is a reality. Having been studied for more than one hundred years, Schiff base compounds are found to have various characteristics, which result in their applications in biology [5] , analysis and material industry [6] , in addition to their important roles in catalysis and organic synthesis [7] . For a long time, pharmacological activity, especially the anti-tumor and antibacterial activity, is one of the major research fields of Schiff base compounds [8,9] . Also, Schiff bases have attracted much more attention recently as the synthetic drugs against bacteria [10] . Although lots of Schiff bases compounds with good antibacterial activity have been discovered [11,12] , few of them are used in clinical applications. It is necessary to do more in-depth studies especially the systematical studies on structure-activity relationships, which are significant in finding novel antibacterial agents for clinical use. However, one of the hindrances is that it is difficult to accurately measure the biological activities of the compounds by common biological methods because of their poor water solubility.As a non-invasive and non-destructive technique, microcalorimetry has long been used in the

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Antimicrobial properties of silver-containing wound dressings: a microcalorimetric study

Cited by 85 publications

References 10 publications

Understanding the Role of Nanomaterials in Agriculture

Understanding the Role of Nanomaterials in Agriculture

Nanotechnology in agriculture, livestock, and aquaculture in China. A review

Antibacterial activity and structure-activity relationships of Schiff bases on Staphylococcus aureus by microcalorimetry

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