silver nanoparticles – Page 2 – TechConnect Briefs

Circular dichroism spectroscopy of Lysozyme-Silver Nanoparticles complex

Ashrafpour S., Tohidi Moghadam T., Ranjbar B., Tarbiat Modares University, IR

The outstanding optical and antibacterial properties of silver nanoparticles have attracted great deal of interest amongst nanobiotechnologists. Designing hybrid systems of nanoparticles and biomolecules as drug nanocarriers of enhanced properties has paved the way for [...]

Composite of silver nanoparticles in glass nanofibers produced by Laser Spinning

Cabal B., Quintero F., Díaz L.A., Rojo F., Dieste O., Pou J., Torrecillas R., Moya J.S., University of Vigo, ES

In this work we present a new approach to produce a nanocomposite made of non-woven silicate glass fibers containing silver nanoparticles. The process first involves the synthesis of pellets of a soda-lime silicate glass containing [...]

“Just Add Water” – “Instant” singly-dispersed suspensions of silver nanoparticles on demand

MacCuspie R.I., National Institute of Standards and Technology, US

The rapid pace of development of new nanomaterials and new applications has also attracted much attention from the environmental health and safety (EHS) risk assessment community. Subsequently, calls for well-characterized common test materials from a [...]

Poly-Vinyl Pyrrolidone (PVP)-coated Silver (Ag) Nanoparticles (Ag-PVP): a Potential to Regulate Chlamydia trachomatis Inflammation

Yilma A.N., Singh S.R., Dixit S., Hidat G.G., Dennis V.A., Alabama State University, US

Chlamydia trachomatis is an important cause of sexually transmitted infection that can manifest itself as either acute cervicitis, pelvic inflammatory disease, and more commonly as a chronic asymptomatic infection. Previously we reported Ag-PVP (5-10 nm) [...]

Quantifying the origin of nanosilver ions and their antibacterial activity

Sotiriou G.A., Meyer A., Knijnenburg J., Panke S., Pratsinis S.E., Particle Technology Laboratory, ETH Zürich, CH

Nanosilver is prominent in nanotechnology products [1]. Concerns however about leached Ag ions from its surface into aquatic environments have challenged its broad use. The origin of these ions is explored here by conditioning the [...]

Smaller sizes of Ag-PVP Nanoparticles Control Inflammatory Responses, and Reduce CD80 and CD86 Expression Levels, in Macrophages Infected with Chlamydia trachomatis

Yilma A.N., Singh S.R., Dennis V.A., Alabama State University, US

Chlamydia trachomatis is an important cause of sexually transmitted infection that can manifest itself as either acute cervicitis, pelvic inflammatory disease, and more commonly as a chronic asymptomatic infection. Early intervention strategies that can reduce [...]

EGF conjugated gold and silver nanoparticles for imaging EGFR over-expressing cells

Lucas L.J., Hewitt K.C., Dalhousie University, CA

Purpose: To create and validate a novel SERS-based nanoprobe for optical imaging of the epidermal growth factor receptor (EGFR). Experimental Design: Gold and silver nanoparticles (Au/AgNPs) were synthesized and coupled to epidermal growth factor (EGF) [...]

Keywords: silver nanoparticles