Trace colorimetric detection of Pb<sup>2 </ce:hsp>+</sup> using plasmonic gold nanoparticles and silica-gold nanocomposites

Trace colorimetric detection of Pb^{2 +} using plasmonic gold nanoparticles and silica-gold nanocomposites

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文摘

class="label">•: A novel method for visual detection of Pb^2 + based on SiO₂@Au nanocomposites (NCs) is developed.
class="label">•: A sensitive method for the detection of aqueous Pb^2 + ions using Au nanoparticles is developed.
class="label">•: Plasmonic detection of Pb^2 + is based on aggregation of AuNPs or SiO₂@Au NCs in analyte presence.
class="label">•: SiO₂@Au NCs are ten times more sensitive as compared to AuNPs for the detection of Pb^2 +.
class="label">•: SERS materials; ~ 20 nm AuNPs and ~ 360 nm SiO₂@Au NCs used for the development of nanosensor for Pb^2 +