A sunlight-induced method for rapid biosynthesis of silver nanoparticles using an Andrachnea chordifolia ethanol extract

被引：32

作者：

Zarchi, A. A. Karimi ^{[3
]}

Mokhtari, N. ^{[1
,2
]}

Arfan, M. ^{[4
]}

Rehman, T. ^{[4
]}

Ali, M. ^{[4
]}

Amini, M. ^{[5
]}

Majidi, R. Faridi ^{[3
]}

Shahverdi, A. R. ^{[1
,2
]}

机构：

[1] Univ Tehran Med Sci, Dept Pharmaceut Biotechnol, Fac Pharm, Tehran, Iran

[2] Univ Tehran Med Sci, Med Plants Res Ctr, Fac Pharm, Tehran, Iran

[3] Univ Tehran Med Sci, Sch Adv Med Technol, Dept Nanomed, Tehran, Iran

[4] Univ Peshawar, Inst Chem Sci, Peshawar 25120, Khyber Pakhtoon, Pakistan

[5] Univ Tehran Med Sci, Dept Med Chem, Fac Pharm, Tehran, Iran

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2011年 / 103卷 / 02期

关键词：

BIOLOGICAL SYNTHESIS; GREEN SYNTHESIS; PLANT;

D O I：

10.1007/s00339-011-6259-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study a sunlight-induced method for rapid synthesis of silver nanoparticles using an ethanol extract of Andrachnea chordifolia is described. The silver nitrate solutions (1 mM) containing the ethanol extract of Andrachnea chordifolia were irradiated by both sunlight radiation and by sunlight radiation passed through different colored filters (red, yellow or green). The smallest size of silver nanoparticles was obtained when a silver ion solution was irradiated for 5 minutes by direct sunlight radiation. Further examination of the shape and size and of the surface chemistry of these biogenic silver nanoparticles, which were prepared under sunlight radiation, was carried out using transmission electron microscopy and infrared spectroscopy, respectively. Transmission electron microscopy images show spherical particles with an average size of 3.4 nm. Hydroxyl residues were also detected on the surface of these biogenic silver nanoparticles fabricated using plant extract of Andrachnea chordifolia under sunlight radiation. Our study on the reduction of silver ions by this plant extract in darkness shows that the synthesis process can take place under dark conditions at much longer incubations (48 hours). Larger silver polydispersed nanoparticles ranging in size from 3 to 30 nm were obtained when the silver ions were treated with the ethanol extract of Andrachnea chordifolia under dark conditions for 48 hours.

引用

页码：349 / 353

页数：5

共 17 条

[1] Biogenic synthesis of Au and Ag nanoparticles using Aqueous solutions of Black Tea leaf extracts [J].