01574nas a2200193   4500008004100000245006600041210006500107260000800172300001100180490000600191520095100197100002201148700002101170700003001191700002601221700001901247700001901266856009501285       2016                        eng d00aSilver nanoparticles: a new perspective in endodontic therapy0 aSilver nanoparticles a new perspective in endodontic therapy  cJUN  a 77-810 v73 a<p>Silver has been in use in medicine since time immemorial because of its antimicrobial properties. But due to the emergence of antibiotics the use of silver has been declined. Several pathogenic bacteria have developed resistance against various antibiotics. This has led to reemergence of silver. Recently nano science and nanotechnology are gaining tremendous popularity. The small size of nanoparticles provides larger surface area and hence increases the effectiveness of nanoparticles. Silver nanoparticles are used in medical and dental applications ranging from silver based wound dressings, silver coated medicinal devices like catheters, endotrachial tubes, bone cements, in gels, lotions, cosmetics, in dental restorative materials, endodontic cements, dental implants caries inhibitory agents, and in prosthesis. The purpose of this article is to discuss briefly the potential role of silver nano particles in endodontic therapy.</p>1 aJadhav, Rajashree1 aBhide, Shrinivas1 aPrasad, Bhagavatula L. V.1 aKunchiraman, Bipinraj1 aShimpi, Jayesh1 aNandhini, Usha  uhttps://library.ncl.res.in/content/silver-nanoparticles-new-perspective-endodontic-therapy01724nas a2200181   4500008004100000245006700041210006700108260000800175300001400183490000700197520113800204100002101342700001901363700001701382700001701399700003001416856009601446       2017                        eng d00aDigestive ripening of Au nanoparticles by multidentate ligands0 aDigestive ripening of Au nanoparticles by multidentate ligands  cJAN  a1943-19500 v333 a<p>The efficiency of multidentate ligands as digestive ripening agents for the preparation of monodisperse Au nanoparticles was investigated. This systematic investigation was performed using ligands possessing one, two, or three thiol moieties as ligands/digestive ripening agents. Our results clearly establish that among the different ligands, those that are monodentate and the use of temperatures in the range of 60 °C and 120 °C offer the best conditions for digestive ripening. In addition, when digestive ripening was carried out at lower temperatures (e.g., 60 °C), the nanoparticle size increased as the number of thiol groups per ligand increased. However, in the case of ligands possessing two and three thiol moieties when they are heated with polydispersed particles at higher temperatures (120 °C or 180 °C), the etching process dominates, which affects the quality of the nanoparticles in terms of their monodispersity. We conclude that the temperature-dependent strength of the interaction between the ligand headgroup and the nanoparticle surface plays a vital role in controlling the final particle sizes.</p>1 aSahu, Puspanjali1 aShimpi, Jayesh1 aLee, Han, Ju1 aLee, Randall1 aPrasad, Bhagavatula, L. V  uhttps://library.ncl.res.in/content/digestive-ripening-au-nanoparticles-multidentate-ligands