Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) UV–Vis spectrum of HAuCl4 mixed with BPNS at different amounts (from a to f: 0, 0.2, 0.4, 0.6, 0.8, 1 mg/mL). (B) UV–Vis spectrum of HAuCl4 added to BPNS for different times (from a to f: 0, 15, 30, 40, 50, 60 min). (C) Raman spectra of BPNS (curve a) and AuNPs–BPNS (curve b). (D) High-resolution XPS spectra of the P2p core level for BPNS (curve a) and AuNPs–BPNS (curve b).
