Type I collagen-mediated synthesis of noble metallic nanoparticles networks and the applications in Surface-Enhanced Raman Scattering and electrochemistry.
In this paper, we demonstrated an effective environmentally friendly synthesis route to prepare noble metallic (Au, Ag, Pt and Pd) nanoparticles (NPs) networks mediated by type I collagen in the absence of any seeds or surfactants. In the reactions, type I collagen served as stabilizing agent and assembly template for the synthesized metallic NPs. The hydrophobic interaction between collagen and mica interface as well as the hydrogen bonds between inter- and intra-collagen molecules play important roles in the formation of collagen-metallic NPs networks. The noble metallic NPs networks have many advantages in the applications of Surface-Enhanced Raman Scattering (SERS) and electrochemistry detection. Typically, the as-prepared Ag NPs networks reveal great Raman enhancement activity for 4-ATP, and can even be used to detect low concentration of DNA base, adenine, without any label step. Furthermore, the cyclic voltammograms showed Pt NPs networks have good electrocatalytic ability for the reduction of O(2).
Sun
Yujing
Y
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, Jilin, People's Republic of China.
Sun
Lanlan
L
Zhang
Baohua
B
Xu
Fugang
F
Liu
Zhelin
Z
Guo
Cunlan
C
Zhang
Yue
Y
Li
Zhuang
Z
D000814:Aniline Compounds / Q000737:chemistry; D000818:Animals; D002384:Catalysis; D002417:Cattle; D024042:Collagen Type I / Q000737:chemistry*; D004563:Electrochemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D019216:Metals, Heavy / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D016062:Porosity; D013059:Spectrum Analysis, Raman; D013438:Sulfhydryl Compounds; D013499:Surface Properties
D000814:Aniline Compounds; D024042:Collagen Type I; D019216:Metals, Heavy; D013438:Sulfhydryl Compounds; C064316:4-aminothiophenol; D010100:Oxygen