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Crystals 2019, 9(2), 61; https://doi.org/10.3390/cryst9020061

Synthesis of Bimetallic Nanoparticles of Cd4HgS5 by Candida Species

1
Departamento de Biología, División de Ciencias Naturales y Exactas, Campus Guanajuato, Universidad de Guanajuato, Noria Alta S/N, Col. Noria Alta, Guanajuato C.P. 36050, Mexico
2
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito exterior S/N, Ciudad Universitaria, CDMX C.P. 04510, Mexico
3
Departamento de Ingenierías Química, Electrónica y Biomédica, División de Ciencias e Ingenierías, Campus León, Universidad de Guanajuato, Guanajuato C.P. 36050, Mexico
4
Departamento de Farmacia, División de Ciencias Naturales y Exactas, Campus Guanajuato, Universidad de Guanajuato, Noria Alta S/N, Col. Noria Alta, Guanajuato C.P. 36050, Mexico
5
Laboratorio de Microscopía, Escuela Nacional de Estudios Superiores (ENES), Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701.Col. Ex Hacienda de San José de la Huerta, Morelia C.P. 58190, Mexico
6
Departamento de Química, División de Ciencias Naturales y Exactas, Campus Guanajuato, Universidad de Guanajuato, Noria Alta S/N, Col. Noria Alta, Guanajuato C.P. 36050, Mexico
7
Instituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Ciudad Universitaria, Ciudad de México C.P. 04510, Mexico
*
Author to whom correspondence should be addressed.
Received: 19 December 2018 / Revised: 17 January 2019 / Accepted: 19 January 2019 / Published: 24 January 2019
(This article belongs to the Special Issue Crystallization Under Special and Physical Environments)
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Abstract

In recent decades, it has been demonstrated that bimetallic nanoparticles (NPs) possess a number of advantages over monometallic NPs, as the combination of metals results in important changes to their physicochemical properties. Synthesis of bimetallic NPs can be achieved through a number of methods, yet there are serious difficulties in controlling these protocols. Biological methods based on the use of microorganisms exhibit important advantages over traditional methods, which makes the search for organisms such as bacteria, yeast and fungi endowed with these abilities an important task. In this context, it has been found that Candida species are able to biosynthesize monometallic NPs, but their ability to form bimetallic NPs has not been investigated. CdHgS is a bimetallic NP of special interest, as it has been found useful in a number of applications; however, its preparation by traditional methods poses certain limitations, and the ability to obtain it through biological procedures has never been demonstrated. With this in mind, the major purpose of this study is to evaluate whether several Candida species were able to synthesize bimetallic NPs of CdHgS in a Cd4HgS5 phase. To our knowledge, this is the first report on the biological synthesis of bimetallic NPs in Candida species. View Full-Text
Keywords: Candida species; monometallic nanoparticles; bimetallic nanoparticles; CdHgS NPs Candida species; monometallic nanoparticles; bimetallic nanoparticles; CdHgS NPs
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Romero-Núñez, A.; González, G.; Romero-Ibarra, J.E.; Vega-González, A.; Cruz-Jiménez, G.; Hernández-Cristóbal, O.; Zárraga-Núñez, R.A.; Obregón-Herrera, A.; López-Romero, E.; Pedraza-Reyes, M.; Cuéllar-Cruz, M. Synthesis of Bimetallic Nanoparticles of Cd4HgS5 by Candida Species. Crystals 2019, 9, 61.

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