Synthesis of Silver Nanoparticles in Bean (Phaseolus vulgaris L.) | Chapter 03 | Advances and Trends in Physical Science Research Vol. 1
The present work shows a brief review of some natural
sources used to produce metallic nanoparticles and leaves the issue open for
further discussion and new investigations. The use of nanoparticles has gained
an increased attention due to its potential application as a drug delivery
medium. The nanoparticle drug delivery characteristics can be engineered to
obtain a certain rate or localization, increase the drug load per particle,
among others. Some plants have biomolcules for specific functions as reduction
and stabilization of the particles formed inside. These biomolecules are for
example polyphenolic compounds, hydroxyflavons, oxalic acid, terpenoids and
many more. Even the exact nature of the bioreduction of metal ions is not
completely understood, the production and investigation of metallic
nanoparticles formed in plants have been increased on last 10 years. A wide
variety of sizes, 5-150 nm, and shapes, spherical, triangular, rods, hexagonal,
have been obtained in plants and fruit extracts. The plant Phaseolus vulgaris (beans) was used to form silver nanoparticles
through bioreduction of Ag (I) to Ag (0) in the living plant. Two groups of
plants were used. One group of plants grew at garden soil and the other in
cotton. To determine the nanoparticles formed in plants, they have been
analyzed by using X-ray absorption spectroscopy (XAS). In both cases, a
solution of AgNO3 was added initially in a concentration of 0.01M
then the concentration was changed to 0.1 mM.). In stem and leaves silver were
found as Ag (0). The XAS spectra were adjusted for more accurate results.
Plants may reduce the valence of silver and form nanoparticles. The TEM images
show that the average particle size is 18 nm, showing in various forms and a
greater number of them in the leaves of plants grown in soil. Results also indicate that nanoparticles
obtained from the stem and leaves have different forms and they can affect the
soil pH.
Biography of author(s)
Jose Alberto Duarte Moller
Universidad
DeLaSalle Bajío, Av. Universidad 602, Col. Lomas del Campestre, León, Gto.
37150, Méxicoe-mail: jduarte@delasalle.edu.nx
Anel Rocío Carrasco
Hernández
Centro
de Investigación en Materiales Avanzados, S. C. Miguel de Cervantes 120,
Complejo Industrial Chihuahua. Chihuahua, Chih. 31136, México
Esperanza Gallegos Loya
Centro
de Investigación en Materiales Avanzados, S. C. Miguel de Cervantes 120,
Complejo Industrial Chihuahua. Chihuahua, Chih. 31136, México
C. González-Valenzuela
Universidad
Autónoma de Chihuahua Av. Escorza No. 900, Zona Centro. CP. 31000, Chihuahua,
Chih., México
E. Orrantia
Centro
de Investigación en Materiales Avanzados, S. C. Miguel de Cervantes 120,
Complejo Industrial Chihuahua. Chihuahua, Chih. 31136, México
Judith Parra Berumen
Centro
de Investigación en Materiales Avanzados, S. C. Miguel de Cervantes 120,
Complejo Industrial Chihuahua. Chihuahua, Chih. 31136, México
Olivares R. Juan Manuel
Universidad
Tecnológica de San Juan del Río. Av. Palma No. 125, Col La Palma No. 125, Col.
Vista Hermosa| San Juan del Río, Qro.| C.P. 76800. México
Rosa Isela Ruvalcaba
Ontiveros
Centro
de Investigación en Materiales Avanzados, S. C. Miguel de Cervantes 120,
Complejo Industrial Chihuahua. Chihuahua, Chih. 31136, México
View Volume: https://doi.org/10.9734/BPI/atpsr/ed1
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