Rapid development of biosynthesis of metal nanoparticles using plants has attracted extensive interests to further investigate this novel and eco-friendly method. In the biosynthesis process, the plant may act as reducing agent, capping agent or shape directing agent. However, identifying specific roles of various components in the plant is challenging. In this study, we use biosynthesis of silver nanoparticles with Gardenia jasminoides Ellis extract to address this issue. The formation process of silver nanoparticles is investigated and the nanoparticles are characterized with the ultraviolet-visible spectroscopy, Fourier transform infrared spectra and scanning electron microscopy. The results indicate that the Gardenia jasminoides Ellis extract can reduce silver ions to form silver nanoparticles, stabilize the nanoparticles, and affect the growth of silver nanocrystal to form silver nanowires. Only geniposide in the extract exhibits good shape-directing ability for silver nanowires. It is found that bovine albumin is a potential capping agent, whereas rutin, gallic acid and chlorogenic acid possess reducing and capping ability.
Size control biosynthesis of silver nanoparticles(AgNPs) by continuous-flow process in microreactors with diff...
Hongyu Liu~(a,b,c,d) Jiale Huang~(b,c,d) Qingbia Li~(a,b,c,d) Lijing Wu~(b,c,d) a(Environmental Science Research Center,College of Oceanography and Environmental Science,Xiamen University,Xiamen 361005,PR China) b(Department of Chemical and Biochemical Engineering,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,PR China) c(National Engineering Laboratory for Green Chemical Productions of Alcohols,Ethers and Esters,Xiamen University,Xiamen 361005,PR China) d(Key Lab for Chemical Biology of Fujian Province,Xiamen University,Xiamen 361005,PR China)
