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Maciel V, Fontes AM, Geris R, da Rocha ZN, Ramalho JGS, da Silva AF, da Silva GC, Taleb A, Ammar S, Malta M. Exploiting Micrometer-Scale Replication of Fungal Biotemplates for Multifunctional Uses in Electrochemistry and SERS Substrates. ACS OMEGA 2024; 9:43385-43394. [PMID: 39493990 PMCID: PMC11525492 DOI: 10.1021/acsomega.4c03431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 10/08/2024] [Accepted: 10/11/2024] [Indexed: 11/05/2024]
Abstract
In this paper, filamentous fungi have been used as biotemplates to integrate gold nanoparticles (Au-NPs) into the cell wall. A new chemical mechanism has been proposed to elucidate the assimilation of Au-NPs by fungi, considering the ionic current that arises in the function of fungal metabolism. After biological components were eliminated, mycelium-like gold microtubes have been obtained using different fungal species as precursors. Mycelium-like gold microtubes replicate the biological shape of fungi, presenting inherent multifunctionality. This work presents two promising applications for this material: high surface area electrodes for electrochemical experiments and substrates for SERS detection of organic molecules such as Rhodamine 6G.
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Affiliation(s)
- Verônica
B. Maciel
- Institute
of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, BA 40110-060, Brazil
- Federal
Institute of Bahia, Campus
Camaçari, Salvador, BA 40110-060, Brazil
| | - Adriana M. Fontes
- Institute
of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, BA 40110-060, Brazil
| | - Regina Geris
- Institute
of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, BA 40110-060, Brazil
| | - Zênis N. da Rocha
- Institute
of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, BA 40110-060, Brazil
| | - Jéssica G. S. Ramalho
- Institute
of Physics, Federal University of Bahia, Campus Ondina, Salvador, BA 40110-060, Brazil
| | - Antonio F. da Silva
- Institute
of Physics, Federal University of Bahia, Campus Ondina, Salvador, BA 40110-060, Brazil
- Institute
of Health Sciences, Federal University of
Bahia, Campus Canela, Salvador, BA 40110-060, Brazil
| | - Gabriel C. da Silva
- Department
of Chemistry, Federal University of Viçosa, Viçosa, MG 36570-900, Brazil
| | | | - Souad Ammar
- Laboratory
of Interfaces, Treatment, Organization and Dynamics of Surfaces (ITODYS),
CNRS, University of Paris Cité, Paris 75005, France
| | - Marcos Malta
- Institute
of Chemistry, Federal University of Bahia, Campus Ondina, Salvador, BA 40110-060, Brazil
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Geris R, Teles de Jesus VE, Ferreira da Silva A, Malta M. Exploring Culture Media Diversity to Produce Fungal Secondary Metabolites and Cyborg Cells. Chem Biodivers 2024; 21:e202302066. [PMID: 38335028 DOI: 10.1002/cbdv.202302066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/12/2024]
Abstract
Fungi are microorganisms of significant biotechnological importance due to their ability to provide food and produce several value-added secondary metabolites and enzymes. Its products move billions of dollars in the pharmaceutical, cosmetics, and additives sectors. These microorganisms also play a notable role in bionanotechnology, leading to the production of hybrid biological-inorganic materials (such as cyborg cells) and the use of their enzyme complex in the biosynthesis of nanoparticles. In this sense, optimizing the fungal growth process is necessary, with selecting the cultivation medium as one of the essential factors for the microorganism to reach its maximum metabolic expression. The culture medium's composition can also impact the nanomaterial's stability and prevent the incorporation of nanoparticles into fungal cells. Therefore, our main objectives are the following: (1) compile and discuss the most commonly employed culture media for the production of fungal secondary metabolites and the formation of cyborg cells, accompanied by preparation methods; (2) provide a six-step guide to investigating the fungal metabolomic profile and (3) discuss the main procedures of microbial cultivation to produce fungal cyborg cells.
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Affiliation(s)
- Regina Geris
- Laboratório de Biotecnologia e Química de Microrganismos (LBQM), Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo S/n, 40170-115, Salvador, Brasil
| | - Vitória Evelyn Teles de Jesus
- Laboratório de Biotecnologia e Química de Microrganismos (LBQM), Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo S/n, 40170-115, Salvador, Brasil
| | - Antonio Ferreira da Silva
- Laboratório de Biotecnologia e Química de Microrganismos (LBQM), Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo S/n, 40170-115, Salvador, Brasil
| | - Marcos Malta
- Laboratório de Biotecnologia e Química de Microrganismos (LBQM), Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Rua Barão de Jeremoabo S/n, 40170-115, Salvador, Brasil
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