Book ChapterDOI
An Unprecedented Thousandfold Enhancement of Antimicrobial Activity of Metal Ions by Selective Anion Treatment
Jakka Ravindran Swathy,Ligy Philip,Thalappil Pradeep +2 more
- pp 433-435
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TLDR
The synergy between anions and cations is understood for their enhanced antimicrobial activity and a decrease in consumption of inorganic ions reduces health risks caused by disinfection by-products (DBPs), thus DBPs and bioaccumulation related issues can be handled efficiently.Abstract:
The synergy between anions and cations is understood for their enhanced antimicrobial activity. Up to thousandfold enhancement of antibacterial and antiviral activity in drinking water by this technique. Enhancement makes disinfection of water affordable, compact and adaptable to multiple purification systems. A decrease in consumption of inorganic ions reduces health risks caused by disinfection by-products (DBPs). Thus DBPs and bioaccumulation related issues can be handled efficiently. This understanding of synergy helps to speed up the disinfection process.read more
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Journal ArticleDOI
A mechanistic study of the antibacterial effect of silver ions on Escherichia coli and Staphylococcus aureus.
TL;DR: The existence of elements of silver and sulfur in the electron-dense granules and cytoplasm detected by X-ray microanalysis suggested the antibacterial mechanism of silver: DNA lost its replication ability and the protein became inactivated after Ag(+) treatment.
Journal ArticleDOI
Negligible Particle-Specific Antibacterial Activity of Silver Nanoparticles
TL;DR: This work suggests that AgNP morphological properties known to affect antimicrobial activity are indirect effectors that primarily influence Ag(+) release, and antibacterial activity could be controlled by modulating Ag(+ release, possibly through manipulation of oxygen availability, particle size, shape, and/or type of coating.
Journal ArticleDOI
Noble metal nanoparticles for water purification: A critical review
Thalappil Pradeep,Anshup +1 more
TL;DR: The most important reason for the use of noble metals is the minimal reactivity at the bulk scale, which can be explained by a number of concepts such as electrochemical potential, relativisitic contraction, molecular orbital theory, etc.
Journal ArticleDOI
Silver emissions and their environmental impacts: a multilevel assessment.
TL;DR: A detailed accounting of environmental releases of silver is presented, based on data from Yale University's Stocks and Flows (STAF) project and other sources, to form an overall semiquantitative assessment of the environmental impact of silver.
Journal ArticleDOI
Biopolymer-reinforced synthetic granular nanocomposites for affordable point-of-use water purification
Mohan Udhaya Sankar,Sahaja Aigal,Shihabudheen M. Maliyekkal,Amrita Chaudhary,Anshup,Avula Anil Kumar,Kamalesh Chaudhari,Thalappil Pradeep +7 more
TL;DR: It is shown that constant release materials can be synthesized in a simple and effective fashion in water itself without the use of electrical power, and the nanocomposite exhibits river sand-like properties, such as higher shear strength in loose and wet forms.