fulltext.study @t Gmail

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

Paper ID Volume ID Publish Year Pages File Format Full-Text
23194 43419 2014 6 PDF Available
Title
Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms
Abstract

•This silica encapsulation matrix protects microalgae from harmful UV light.•The material formulation is based on the electrostatic adsorption of Rhodamine B.•The proposed synthesis is inexpensive, not time consuming, and easy to scale up.•It is useful for applications that are exposed to UV radiation.•It is valuable for external sterilization procedures in industrial applications.

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.

Keywords
Sol–gel; Living-cell encapsulation; UV-protection; Microalgae
First Page Preview
Rhodamine B doped silica encapsulation matrices for the protection of photosynthetic organisms
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 184, 20 August 2014, Pages 94–99
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us