Preparation, Characterization and Antimicrobial Properties of Nanosized Silver‐Containing Carbon/Silica Composites from Rice Husk Waste
Abstract Rice husk, one of the main side products in the rice production, and its sustainable management represent a challenge in many countries. Herein, we describe the use of this abundant agricultural bio‐waste as feedstock for the preparation of silver‐containing carbon/silica nano composites wi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2021-12-01
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| Series: | ChemistryOpen |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/open.202100239 |
| _version_ | 1819176496228466688 |
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| author | Felix Unglaube Alexander Lammers Dr. Carsten Robert Kreyenschulte Prof. Dr. Michael Lalk Dr. Esteban Mejía |
| author_facet | Felix Unglaube Alexander Lammers Dr. Carsten Robert Kreyenschulte Prof. Dr. Michael Lalk Dr. Esteban Mejía |
| author_sort | Felix Unglaube |
| collection | DOAJ |
| description | Abstract Rice husk, one of the main side products in the rice production, and its sustainable management represent a challenge in many countries. Herein, we describe the use of this abundant agricultural bio‐waste as feedstock for the preparation of silver‐containing carbon/silica nano composites with antimicrobial properties. The synthesis was performed using a fast and cheap methodology consisting of wet impregnation followed by pyrolysis, yielding C/SiO2 composite materials doped with varying amounts of silver from 28 to 0.001 wt %. The materials were fully characterized and their antimicrobial activity against ESKAPE pathogens, namely E. faecium, S. aureus, K. pneumoniae, A. baumannii, P. aeruginosa, and E. coli, and the pathogenic yeast C. albicans was investigated. Sensitivities of these strains against the prepared materials were demonstrated, even with exceptional low amounts of 0.015 m% silver. Hence, we report a straightforward method for the synthesis of antimicrobial agents from abundant sources which addresses urgent questions like bio‐waste valorization and affordable alternatives to increasingly fewer effective antibiotics. |
| first_indexed | 2024-12-22T21:11:41Z |
| format | Article |
| id | doaj.art-b0dd4191c575492488ff0d83ac18733c |
| institution | Directory Open Access Journal |
| issn | 2191-1363 |
| language | English |
| last_indexed | 2024-12-22T21:11:41Z |
| publishDate | 2021-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemistryOpen |
| spelling | doaj.art-b0dd4191c575492488ff0d83ac18733c2022-12-21T18:12:30ZengWiley-VCHChemistryOpen2191-13632021-12-0110121244125010.1002/open.202100239Preparation, Characterization and Antimicrobial Properties of Nanosized Silver‐Containing Carbon/Silica Composites from Rice Husk WasteFelix Unglaube0Alexander Lammers1Dr. Carsten Robert Kreyenschulte2Prof. Dr. Michael Lalk3Dr. Esteban Mejía4Leibniz-Institut für Katalyse e.V. (LIKAT) 18059 Rostock GermanyInstitut für Biochemie Universität Greifswald 17489 Greifswald GermanyLeibniz-Institut für Katalyse e.V. (LIKAT) 18059 Rostock GermanyInstitut für Biochemie Universität Greifswald 17489 Greifswald GermanyLeibniz-Institut für Katalyse e.V. (LIKAT) 18059 Rostock GermanyAbstract Rice husk, one of the main side products in the rice production, and its sustainable management represent a challenge in many countries. Herein, we describe the use of this abundant agricultural bio‐waste as feedstock for the preparation of silver‐containing carbon/silica nano composites with antimicrobial properties. The synthesis was performed using a fast and cheap methodology consisting of wet impregnation followed by pyrolysis, yielding C/SiO2 composite materials doped with varying amounts of silver from 28 to 0.001 wt %. The materials were fully characterized and their antimicrobial activity against ESKAPE pathogens, namely E. faecium, S. aureus, K. pneumoniae, A. baumannii, P. aeruginosa, and E. coli, and the pathogenic yeast C. albicans was investigated. Sensitivities of these strains against the prepared materials were demonstrated, even with exceptional low amounts of 0.015 m% silver. Hence, we report a straightforward method for the synthesis of antimicrobial agents from abundant sources which addresses urgent questions like bio‐waste valorization and affordable alternatives to increasingly fewer effective antibiotics.https://doi.org/10.1002/open.202100239antimicrobial resistanceantimicrobial surfaceESKAPE pathogensrice husksilver |
| spellingShingle | Felix Unglaube Alexander Lammers Dr. Carsten Robert Kreyenschulte Prof. Dr. Michael Lalk Dr. Esteban Mejía Preparation, Characterization and Antimicrobial Properties of Nanosized Silver‐Containing Carbon/Silica Composites from Rice Husk Waste ChemistryOpen antimicrobial resistance antimicrobial surface ESKAPE pathogens rice husk silver |
| title | Preparation, Characterization and Antimicrobial Properties of Nanosized Silver‐Containing Carbon/Silica Composites from Rice Husk Waste |
| title_full | Preparation, Characterization and Antimicrobial Properties of Nanosized Silver‐Containing Carbon/Silica Composites from Rice Husk Waste |
| title_fullStr | Preparation, Characterization and Antimicrobial Properties of Nanosized Silver‐Containing Carbon/Silica Composites from Rice Husk Waste |
| title_full_unstemmed | Preparation, Characterization and Antimicrobial Properties of Nanosized Silver‐Containing Carbon/Silica Composites from Rice Husk Waste |
| title_short | Preparation, Characterization and Antimicrobial Properties of Nanosized Silver‐Containing Carbon/Silica Composites from Rice Husk Waste |
| title_sort | preparation characterization and antimicrobial properties of nanosized silver containing carbon silica composites from rice husk waste |
| topic | antimicrobial resistance antimicrobial surface ESKAPE pathogens rice husk silver |
| url | https://doi.org/10.1002/open.202100239 |
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