DDAB-Triggered, Size-Sorted, Instant Phase-Switching of Silver Nanoparticles

Abstract

Silver nanoparticles, trending in nano-world plead of a quick and alluring cost-effective approach towards obtaining narrowed particle size. In response, we exploit here duality of didodecyldimethylammonium bromide (DDAB) as efficient phase-switcher as well as stabilizer for quick transfer of aqueous synthesized silver nanoparticles into chloroform. The hydrophobic force gradient across the interface in presence of DDAB facilitate in obtaining the desired physical dimensions of the particles heading towards their self-assembly upto 0.5 mm.Phase transferred silver particles are characterized by SPR in UV-vis spectroscopy and TEM alongwith systematic study of particle size distribution with DDAB concentration. XRD and SAED patterns authorize the crystallinity of silver while FT-IR and XPS elucidate their stabiity in the organocolloid. This programmed monodispersed self-assembly technique suggests the possibility of its application in spontaneously organized electronic devices.

Trifluoperazine-Loaded Leciplexes as Potential Nasal Delivery Systems for treatment of depression

“…Moreover, the nanoparticles appeared to be smaller than average particle size of the zetasizer. This might be due to hydrodynamic layers forming around the particles, leading the zetasizer to overestimate particle size [39] .…”

Facile approach to enhance the antibacterial activity of ZnO nanoparticles

“…This can be attributed to the E2 form of the hexagonal wurtzite crystal (lattice) structure of the ZnO NPs [17]. DDAB showed peaks in 2930-2844 cm −1 corresponding to the methylene and methyl groups, 1469 and 731 cm −1 corresponding to the scissoring motion (H-C-H bending) and rocking mode of the methylene chains, respectively, and 886 cm −1 corresponding to the CH 3 rocking mode [18,19]. The ZnO NPs treated with 3 wt-% DDAB for different reaction times showed four characteristic peaks at 2979, 2898, 1517, and 1247 cm −1 .…”

Homogenous Dispersion of MoS2 Nanosheets in Polyindole Matrix at Air–Water Interface Assisted by Langmuir Technique

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