摘要
Rod-likegoldnanoparticlescanbeformedfromHAuCl4aqueoussolutionwithultraviolet(UV)irradiationintheabsenceoftemplates,avoidingpossiblepoisonoussurfactantembeddedintothesurfaceoffunctionalgoldnanoparticlesappliedinbiomedicine.Theaspectratioofnanorodsrangesfrom1.1to4.4withtheconcentrationofHAuCl40.2mM,whichcanbeverifiedbyHRTEMimagesandtheabsorptionspectrum.Itisfoundthatthenanoclusterwithseveralatomsoccurspriortotheformationofnanorods,highlycorrespondingtoitstypicalabsorptionspectrum.TracingtheevolutioninabsorptionspectraofHAuCl4aqueoussolution,itcanbeconcludedthattheformationmechanismofgoldnanoparticlesinthisprocessisdifferentfromthatintheconventionalinductivegrowthmodel,possiblyinagrowthpatternwithimperfectorientedattachment(IOA)relevanttothecolliding-and-growing.
出版日期
2010年01月11日（中国期刊网平台首次上网日期，不代表论文的发表时间）
