Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms

An advanced encapsulation matrix that efficiently protects microalgae from harmful UV light without causing toxicity to the entrapped culture is developed based on the electrostatic adsorption of the dye Rhodamine B on silica preformed particles during sol-gel synthesis. The three microalgae (Chlore...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Perullini, Ana Mercedes
Publicado:	2014
Materias:	Living-cell encapsulation Microalgae Sol-gel UV-protection Algae Microorganisms Silica gel Sol-gel process Sol-gels Mechanical stability X ray scattering Chlamydomonas reinhardtii Electrostatic adsorption Encapsulation matrices Micro-algae Photosynthetic organisms Pseudokirchneriella subcapitata Small angle X-ray scattering Living cell UV protection Silica alginic acid rhodamine B silicon dioxide rhodamine silica gel adsorption article cell encapsulation Chlorella vulgaris isotherm microalga nonhuman priority journal Pseudokirchneriella radiation protection toxicity ultraviolet radiation chemistry drug effects phase transition photosynthesis radiation response Article biosensor cell viability clinical assessment clinical effectiveness cytotoxicity deterioration gel filtration harmful alga molecular stability radiation sterilization Selenastrum capricornutum synthesis toxicity testing X ray crystallography Phase Transition Photosynthesis Rhodamines Silicon Dioxide Ultraviolet Rays
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01681656_v184_n_p94_Perullini http://hdl.handle.net/20.500.12110/paper_01681656_v184_n_p94_Perullini
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01681656_v184_n_p94_Perullini
record_format	dspace
spelling	paper:paper_01681656_v184_n_p94_Perullini2023-06-08T15:17:34Z Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms Perullini, Ana Mercedes Living-cell encapsulation Microalgae Sol-gel UV-protection Algae Microorganisms Silica gel Sol-gel process Sol-gels Algae Mechanical stability Microorganisms Silica gel Sol-gel process Sol-gels X ray scattering Chlamydomonas reinhardtii Electrostatic adsorption Encapsulation matrices Micro-algae Photosynthetic organisms Pseudokirchneriella subcapitata Small angle X-ray scattering UV-protection Living cell UV protection Silica Silica alginic acid rhodamine B silicon dioxide rhodamine rhodamine B silicon dioxide silica gel adsorption article cell encapsulation Chlamydomonas reinhardtii Chlorella vulgaris isotherm microalga nonhuman priority journal Pseudokirchneriella radiation protection toxicity ultraviolet radiation chemistry drug effects phase transition photosynthesis radiation response ultraviolet radiation Article biosensor cell viability Chlamydomonas reinhardtii Chlorella vulgaris clinical assessment clinical effectiveness cytotoxicity deterioration gel filtration harmful alga molecular stability radiation sterilization Selenastrum capricornutum synthesis toxicity testing X ray crystallography Chlamydomonas reinhardtii Chlorella vulgaris Phase Transition Photosynthesis Rhodamines Silicon Dioxide Ultraviolet Rays Chlamydomonas reinhardtii Chlorella vulgaris Selenastrum capricornutum An advanced encapsulation matrix that efficiently protects microalgae from harmful UV light without causing toxicity to the entrapped culture is developed based on the electrostatic adsorption of the dye Rhodamine B on silica preformed particles during sol-gel synthesis. The three microalgae (Chlorella vulgaris, Pseudokirchneriella subcapitata and Chlamydomonas reinhardtii) were previously immobilized in alginate following the Two-step procedure. Once entrapped in the silica gel, Rhodamine B act as an inner cut-off filter, protecting the encapsulated organisms from UV radiation. This matrix allows the sterilization of encapsulation devices without affecting the viability of the entrapped microalgae cells. The condensation of Si(IV) in the presence of silica particles with adsorbed dye generates silica matrices with good mechanical stability. Furthermore; no appreciable differences in microstructure, as assessed by SAXS (Small Angle X-ray Scattering), are caused by the addition of the dye. © 2014 Elsevier B.V. Fil:Perullini, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01681656_v184_n_p94_Perullini http://hdl.handle.net/20.500.12110/paper_01681656_v184_n_p94_Perullini
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Living-cell encapsulation Microalgae Sol-gel UV-protection Algae Microorganisms Silica gel Sol-gel process Sol-gels Algae Mechanical stability Microorganisms Silica gel Sol-gel process Sol-gels X ray scattering Chlamydomonas reinhardtii Electrostatic adsorption Encapsulation matrices Micro-algae Photosynthetic organisms Pseudokirchneriella subcapitata Small angle X-ray scattering UV-protection Living cell UV protection Silica Silica alginic acid rhodamine B silicon dioxide rhodamine rhodamine B silicon dioxide silica gel adsorption article cell encapsulation Chlamydomonas reinhardtii Chlorella vulgaris isotherm microalga nonhuman priority journal Pseudokirchneriella radiation protection toxicity ultraviolet radiation chemistry drug effects phase transition photosynthesis radiation response ultraviolet radiation Article biosensor cell viability Chlamydomonas reinhardtii Chlorella vulgaris clinical assessment clinical effectiveness cytotoxicity deterioration gel filtration harmful alga molecular stability radiation sterilization Selenastrum capricornutum synthesis toxicity testing X ray crystallography Chlamydomonas reinhardtii Chlorella vulgaris Phase Transition Photosynthesis Rhodamines Silicon Dioxide Ultraviolet Rays Chlamydomonas reinhardtii Chlorella vulgaris Selenastrum capricornutum
spellingShingle	Living-cell encapsulation Microalgae Sol-gel UV-protection Algae Microorganisms Silica gel Sol-gel process Sol-gels Algae Mechanical stability Microorganisms Silica gel Sol-gel process Sol-gels X ray scattering Chlamydomonas reinhardtii Electrostatic adsorption Encapsulation matrices Micro-algae Photosynthetic organisms Pseudokirchneriella subcapitata Small angle X-ray scattering UV-protection Living cell UV protection Silica Silica alginic acid rhodamine B silicon dioxide rhodamine rhodamine B silicon dioxide silica gel adsorption article cell encapsulation Chlamydomonas reinhardtii Chlorella vulgaris isotherm microalga nonhuman priority journal Pseudokirchneriella radiation protection toxicity ultraviolet radiation chemistry drug effects phase transition photosynthesis radiation response ultraviolet radiation Article biosensor cell viability Chlamydomonas reinhardtii Chlorella vulgaris clinical assessment clinical effectiveness cytotoxicity deterioration gel filtration harmful alga molecular stability radiation sterilization Selenastrum capricornutum synthesis toxicity testing X ray crystallography Chlamydomonas reinhardtii Chlorella vulgaris Phase Transition Photosynthesis Rhodamines Silicon Dioxide Ultraviolet Rays Chlamydomonas reinhardtii Chlorella vulgaris Selenastrum capricornutum Perullini, Ana Mercedes Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms
topic_facet	Living-cell encapsulation Microalgae Sol-gel UV-protection Algae Microorganisms Silica gel Sol-gel process Sol-gels Algae Mechanical stability Microorganisms Silica gel Sol-gel process Sol-gels X ray scattering Chlamydomonas reinhardtii Electrostatic adsorption Encapsulation matrices Micro-algae Photosynthetic organisms Pseudokirchneriella subcapitata Small angle X-ray scattering UV-protection Living cell UV protection Silica Silica alginic acid rhodamine B silicon dioxide rhodamine rhodamine B silicon dioxide silica gel adsorption article cell encapsulation Chlamydomonas reinhardtii Chlorella vulgaris isotherm microalga nonhuman priority journal Pseudokirchneriella radiation protection toxicity ultraviolet radiation chemistry drug effects phase transition photosynthesis radiation response ultraviolet radiation Article biosensor cell viability Chlamydomonas reinhardtii Chlorella vulgaris clinical assessment clinical effectiveness cytotoxicity deterioration gel filtration harmful alga molecular stability radiation sterilization Selenastrum capricornutum synthesis toxicity testing X ray crystallography Chlamydomonas reinhardtii Chlorella vulgaris Phase Transition Photosynthesis Rhodamines Silicon Dioxide Ultraviolet Rays Chlamydomonas reinhardtii Chlorella vulgaris Selenastrum capricornutum
description	An advanced encapsulation matrix that efficiently protects microalgae from harmful UV light without causing toxicity to the entrapped culture is developed based on the electrostatic adsorption of the dye Rhodamine B on silica preformed particles during sol-gel synthesis. The three microalgae (Chlorella vulgaris, Pseudokirchneriella subcapitata and Chlamydomonas reinhardtii) were previously immobilized in alginate following the Two-step procedure. Once entrapped in the silica gel, Rhodamine B act as an inner cut-off filter, protecting the encapsulated organisms from UV radiation. This matrix allows the sterilization of encapsulation devices without affecting the viability of the entrapped microalgae cells. The condensation of Si(IV) in the presence of silica particles with adsorbed dye generates silica matrices with good mechanical stability. Furthermore; no appreciable differences in microstructure, as assessed by SAXS (Small Angle X-ray Scattering), are caused by the addition of the dye. © 2014 Elsevier B.V.
author	Perullini, Ana Mercedes
author_facet	Perullini, Ana Mercedes
author_sort	Perullini, Ana Mercedes
title	Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms
title_short	Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms
title_full	Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms
title_fullStr	Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms
title_full_unstemmed	Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms
title_sort	rhodamine b doped silica encapsulation matrices for the protection of photosynthetic organisms
publishDate	2014
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01681656_v184_n_p94_Perullini http://hdl.handle.net/20.500.12110/paper_01681656_v184_n_p94_Perullini
work_keys_str_mv	AT perullinianamercedes rhodaminebdopedsilicaencapsulationmatricesfortheprotectionofphotosyntheticorganisms
_version_	1768545506536980480

Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms

Ejemplares similares