Fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endospores

Gold nanoparticles (AuNPs) have a wide range of applications due to their optoelectronic properties. Particularly, biological synthesis of AuNPs highlights due to the advantages related to the environmental care and the stabilization provided by capping biomolecules during biosynthesis. The antimicr...

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Main Authors: Jesús Guzmán-Moreno, Rosa María Ramírez-Santoyo, José Juan Ortega-Sigala, Carlos Ángeles-Chávez, Vicente Rodríguez-González, Candelario Rodríguez-Serrano, Araceli Patrón-Soberano, Gabriela I. de Ávila-Araiza, Fernando Luna-Álvarez, Luz Elena Vidales-Rodríguez
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Green Chemistry Letters and Reviews
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Online Access:https://www.tandfonline.com/doi/10.1080/17518253.2024.2360489
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author Jesús Guzmán-Moreno
Rosa María Ramírez-Santoyo
José Juan Ortega-Sigala
Carlos Ángeles-Chávez
Vicente Rodríguez-González
Candelario Rodríguez-Serrano
Araceli Patrón-Soberano
Gabriela I. de Ávila-Araiza
Fernando Luna-Álvarez
Luz Elena Vidales-Rodríguez
author_facet Jesús Guzmán-Moreno
Rosa María Ramírez-Santoyo
José Juan Ortega-Sigala
Carlos Ángeles-Chávez
Vicente Rodríguez-González
Candelario Rodríguez-Serrano
Araceli Patrón-Soberano
Gabriela I. de Ávila-Araiza
Fernando Luna-Álvarez
Luz Elena Vidales-Rodríguez
author_sort Jesús Guzmán-Moreno
collection DOAJ
description Gold nanoparticles (AuNPs) have a wide range of applications due to their optoelectronic properties. Particularly, biological synthesis of AuNPs highlights due to the advantages related to the environmental care and the stabilization provided by capping biomolecules during biosynthesis. The antimicrobial activity of AuNPs was reported, however, their activity against resistant structures such as bacterial endospores have not been evaluated. This work shows the extracellular biosynthesis of AuNPs using Epicoccum nigrum (Au1-8) throughout an ecofriendly, simple, and efficient method. Physicochemical characterization revealed that stable quasi-spherical AuNPs in a range size of 2 to 30 nm, with crystal structure and metallic Au0 composition were obtained. The AuNPs sporicidal activity against Bacillus subtilis endospores was evaluated by its exposure to 300 mg/L AuNPs during 48 h, which produced a decrease of 90.6% of the endospore germination. The analysis of the endospore-AuNP interaction by scanning electron microscopy (SEM) and infrared (IR) spectroscopy revealed injury of the endospore coat and lysis. These results are promising for the advance in the development of low-aggressive agents used for environmental decontamination regimens against pathogenic bacterial spores, or even as an alternative for the treatment of illnesses produced by endospore-former causative agents of food spoilage/poisoning and human diseases.
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spelling doaj-art-8a4e5dbb7e9d4317ad868a46af12fbe52025-08-20T02:19:38ZengTaylor & Francis GroupGreen Chemistry Letters and Reviews1751-82531751-71922024-12-0117110.1080/17518253.2024.2360489Fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endosporesJesús Guzmán-Moreno0Rosa María Ramírez-Santoyo1José Juan Ortega-Sigala2Carlos Ángeles-Chávez3Vicente Rodríguez-González4Candelario Rodríguez-Serrano5Araceli Patrón-Soberano6Gabriela I. de Ávila-Araiza7Fernando Luna-Álvarez8Luz Elena Vidales-Rodríguez9Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas “Francisco García Salinas”, Zacatecas, MexicoUnidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas “Francisco García Salinas”, Zacatecas, MexicoUnidad Académica de Física, Universidad Autónoma de Zacatecas “Francisco García Salinas”, Zacatecas, MexicoGerencia de Investigación en Catalizadores y Productos Químicos, Instituto Mexicano del Petróleo, Ciudad de México, MexicoDivisión de Materiales Avanzados, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica A. C., San Luis Potosí, MexicoUnidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas “Francisco García Salinas”, Zacatecas, MexicoDivisión de Materiales Avanzados, División de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica A. C., San Luis Potosí, MexicoÁrea de Ciencias de la Salud, Universidad Autónoma de Zacatecas “Francisco García Salinas”, Zacatecas, MexicoUnidad Académica de Física, Universidad Autónoma de Zacatecas “Francisco García Salinas”, Zacatecas, MexicoUnidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas “Francisco García Salinas”, Zacatecas, MexicoGold nanoparticles (AuNPs) have a wide range of applications due to their optoelectronic properties. Particularly, biological synthesis of AuNPs highlights due to the advantages related to the environmental care and the stabilization provided by capping biomolecules during biosynthesis. The antimicrobial activity of AuNPs was reported, however, their activity against resistant structures such as bacterial endospores have not been evaluated. This work shows the extracellular biosynthesis of AuNPs using Epicoccum nigrum (Au1-8) throughout an ecofriendly, simple, and efficient method. Physicochemical characterization revealed that stable quasi-spherical AuNPs in a range size of 2 to 30 nm, with crystal structure and metallic Au0 composition were obtained. The AuNPs sporicidal activity against Bacillus subtilis endospores was evaluated by its exposure to 300 mg/L AuNPs during 48 h, which produced a decrease of 90.6% of the endospore germination. The analysis of the endospore-AuNP interaction by scanning electron microscopy (SEM) and infrared (IR) spectroscopy revealed injury of the endospore coat and lysis. These results are promising for the advance in the development of low-aggressive agents used for environmental decontamination regimens against pathogenic bacterial spores, or even as an alternative for the treatment of illnesses produced by endospore-former causative agents of food spoilage/poisoning and human diseases.https://www.tandfonline.com/doi/10.1080/17518253.2024.2360489Gold nanoparticlesfungal biosynthesisendosporessporicidal agents
spellingShingle Jesús Guzmán-Moreno
Rosa María Ramírez-Santoyo
José Juan Ortega-Sigala
Carlos Ángeles-Chávez
Vicente Rodríguez-González
Candelario Rodríguez-Serrano
Araceli Patrón-Soberano
Gabriela I. de Ávila-Araiza
Fernando Luna-Álvarez
Luz Elena Vidales-Rodríguez
Fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endospores
Green Chemistry Letters and Reviews
Gold nanoparticles
fungal biosynthesis
endospores
sporicidal agents
title Fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endospores
title_full Fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endospores
title_fullStr Fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endospores
title_full_unstemmed Fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endospores
title_short Fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endospores
title_sort fungal biosynthesis of gold nanoparticles with sporicidal activity against bacterial endospores
topic Gold nanoparticles
fungal biosynthesis
endospores
sporicidal agents
url https://www.tandfonline.com/doi/10.1080/17518253.2024.2360489
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