Antimycobacterial efficacy of silver nanoparticles as deposited on porous membrane filters

The tuberculocidal activity of polyaniline and functionalised polyanilines

“…The cell wall of M. tuberculosis is protective against penetration of silver nanoparticles into the cytoplasm as disruption with chloroform was required for inhibitory activity (Praba et al, 2013). Mycobacterium avium , a pathogenic mycobacterium, was reduced slightly in number after a 24–48 h treatment with silver nanoparticles, which suggests that the bactericidal activity of silver nanoparticles against M. tuberculosis in a relevant time frame (15 min) would be negligible (Islam et al, 2013; Miyamoto, Yamaguchi & Sasatsu, 2000). Furthermore, the potential for development of resistance to silver and cross-resistance to antibiotics reduces the suitability of silver as an antimycobacterial agent.…”

The Potential of Metal Nanoparticles for Inhibition of Bacterial Biofilms

“…biofilms. Nanosilver at a concentration of 100 μM almost completely inhibited survival of tested bacteria (Islam et al, 2013). In yet another study, AgNPs (spherical in shape with diameters ranging from 15 to 34 nm) were also successfully applied in the inhibition of marine biofilms (Inbakandan et al, 2013).…”

Nonconventional Routes to Silver Nanoantimicrobials

“…For this purpose, silvertreated leather with durable antibacterial properties has been proposed by the authors for application in the public transport systems , and silver-treated polymeric foams also demonstrated strong efficacy against pathogen strains responsible for respiratory diseases associated with the contamination of air filtration units in domestic and public places (Paladini et al 2014a). Filters able to remove potential pathogens also have significant medical applications (Islam et al, 2013), so filters containing silver have been proposed for tap water purification, wastewater and groundwater treatment, and other bio-related applications (Vonberg et al, 2008;Dankovich and Gray, 2011;Nowack et al, 2011;Mpenyana-Monyatsi et al, 2012;Pathak and Gopal, 2012;Seo et al, 2012;Yuan et al, 2013). Other promising applications of AgNPs described in recent research works include those of the food industry (as packing material) and those of the marine industry (as antibiofouling material) (Gottesman et al, 2011;Song et al, 2011;Echegoyen and Nerín, 2013;Inbakandan et al, 2013;Liu et al, 2014).…”