Assembly of gold nanoparticles (AuN

Assembly of gold nanoparticles (AuNP) into designer architectures with reliablity is important for nanophotonics and nanoelectronics applications. Toward this goal we present a new strategy to prepare AuNPs monofunctionalized with lipoic acid modified DNA oligos. This strategy offers increased bonding strength between DNA oligos and AuNP surface. These conjugates are further selectively mixed with other DNA strands and assembled into fixed sized DNA nanostructures carring a discrete number of AuNPs at desired positions. Atomic force microscopy imaging reveals a dramatically improved yield of the AuNPs on DNA tile structure compared to the ensembles using monothiolate AuNP-DNA conjugates.

ผลลัพธ์ (ไอซ์แลนด์) 1:

Þing gull nanoparticles (AuNP) í þekktum arkitektúr við reliablity er mikilvægt fyrir nanophotonics og nanoelectronics forrit. Undir þessu markmiði kynnum nýja stefnu til að undirbúa AuNPs monofunctionalized með lipoic acid breyttum DNA oligos. Þessi stefna býður aukna skuldabréf styrkur milli DNA oligos og AuNP yfirborðinu. Þessar samtengdu efnasambönd eru frekar sértækt blanda öðrum þráðum DNA og saman í föstum stærðum DNA nanostructures carring stakur fjölda AuNPs á viðkomandi stöðum. Atomic Force smásjá hugsanlegur kemur í ljós verulega betri ávöxtun af AuNPs á DNA flísar uppbyggingu samanborið við fatasamstæður með monothiolate AuNP-DNA samtengingar.