2023
DOI: 10.1021/acsnano.2c12677
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Nanostructured Hybrid BioBots for Beer Brewing

Abstract: The brewing industry will amass a revenue above 500 billion euros in 2022, and the market is expected to grow annually. This industrial process is based on a slow sugar fermentation by yeast (commonly Saccharomyces cerevisiae). Herein, we encapsulate yeast cells into a biocompatible alginate (ALG) polymer along Fe 3 O 4 nanoparticles to produce magneto/catalytic nanostructured ALG@yeast-Fe 3 O 4 BioBots. Yeast encapsulated in these biocompatible BioBots keeps their biological activity (growth, reproduction, an… Show more

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Cited by 4 publications
(3 citation statements)
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“…Recently, ALG@yeast-Fe 3 O 4 BioBots, capable of magneto- and catalytic functionalities, have been constructed by encapsulating Fe 3 O 4 nanoparticles and yeast cells within an alginate polymer matrix. 67 The continuous oscillatory motion of the BioBots in the solution is induced by CO 2 gas from the catalytic fermentation of sugars. With the ability for movement, the BioBots promote the production of alcohol.…”
Section: Propulsion Mechanisms Of Mnmsmentioning
confidence: 99%
“…Recently, ALG@yeast-Fe 3 O 4 BioBots, capable of magneto- and catalytic functionalities, have been constructed by encapsulating Fe 3 O 4 nanoparticles and yeast cells within an alginate polymer matrix. 67 The continuous oscillatory motion of the BioBots in the solution is induced by CO 2 gas from the catalytic fermentation of sugars. With the ability for movement, the BioBots promote the production of alcohol.…”
Section: Propulsion Mechanisms Of Mnmsmentioning
confidence: 99%
“…Preparation of magnetic Fe 3 O 4 nanoparticles with good biocompatibility, excellent size, and surface effects is simple and cost-effective; therefore, they are considered safe and ideal adsorbers. These nanoparticles can be separated under the action of the external magnetic field to achieve rapid collection and controlled release. The Fe 3 O 4 nanoparticles and Fe 3+ ions can adsorb anthocyanin extracts with polyhydroxy C6–C3–C6 structures. , Anthocyanins are aglycones combined with one or more sugar molecules via glycosidic bonds to form various complex structures. , The Fe 3 O 4 nanoparticles can design various functions on the surface, which is extremely crucial for the adsorption of anthocyanins with different structures. However, the adsorption pairing between the Fe 3 O 4 nanoparticles and anthocyanins is poor, which leads to low adsorption selectivity and efficiency. , Surface morphology, , functional groups, , surface polarity, , particle size, , and other factors typically affect the adsorption properties of the Fe 3 O 4 nanoparticles. The surface functionalization of these nanoparticles can regulate the aforementioned factors, thereby affecting surface free energy, electrostatic interaction, hydrogen bonds, and selective bonding of surface functional groups …”
mentioning
confidence: 99%
“…Durante este proceso, la cerveza puede sufrir deterioro de la levadura, lo que provoca pérdidas económicas. Nanopartículas de Fe3O4 encapsuladas en partículas de alginato (ALG) han demostrado que, debido a su actividad biocatalítica mejoran y aceleran el proceso de fermentación alcohólica y, además, permiten eliminar fácilmente la levadura al final del proceso de fermentación mediante activación magnética sin pasos de filtración adicionales [Maria-Hormigos 2023]. Dado el interés, tecnológico (además del básico) el estudio y sobre todo los métodos de fabricación que optimicen el uso de Fe3O4 es cada día más relevante.…”
Section: Interacciones Hiperfinas En Sitios Feunclassified