Preparation of Ca-alginate coated nZVI core shell beads for uranium (VI) removal from aqueous solution

Immobilization and display of proteins is extensively used to enhance stability and performance of proteins for technical uses such as in biotechnology. Here, self‐assembled nonporous polyhydroxybutyrate (PHB) particles bioengineered to display proteins of interest are subjected to alginate encapsulation processes. The novel composite spheres are fabricated using ionotropic gelation methods. The immunoglobulin G (IgG) binding domain Z and organophosphate hydrolase (OpdA) are attached to PHB particles, and are examples for bioseparation and bioremediation applications, respectively. Alginate microspheres entrapping Z domain coated PHB particles enable flow‐through purification of IgG. Microsphere porosity is pH tunable and at acidic pH IgG is released from Z domains but retained within microspheres. OpdA‐PHB particles are functionally entrapped in alginate microspheres enabling flow‐through substrate conversion. Attachment of functional proteins to PHB particles enhances retention within the alginate microspheres. The hydrophobic PHB particle core within alginate beads provides payload for lipophilic substances, which adsorption kinetics are aligned with a pseudo‐second‐order kinetic model in agreement with the Freundlich isotherm model. This study describes the development of a multifunctional composite material platform based on alginate spheres encapsulating PHB particles that provide payload for lipophilic substances and can be engineered to display protein functions of interest.

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Alginate Encapsulation of Bioengineered Protein‐Coated Polyhydroxybutyrate Particles: A New Platform for Multifunctional Composite Materials

Ogura

Rehm

2019

Adv Funct Materials

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Sodium carbonate/biochar-supported sodium alginate-modified nano zero-valent iron for complete adsorption and degradation of tetracycline in aqueous solution

Wang,

Wu,

2023

Environ Sci Pollut Res

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Enhancement of the heterogeneous adsorption and incorporation of uraniumVI caused by the intercalation of β-cyclodextrin into the green rust

Huang

Dai

et al. 2021

Environmental Pollution

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Preparation of Ca-alginate coated nZVI core shell beads for uranium (VI) removal from aqueous solution

Cited by 6 publications

References 46 publications

Alginate Encapsulation of Bioengineered Protein‐Coated Polyhydroxybutyrate Particles: A New Platform for Multifunctional Composite Materials

Alginate Encapsulation of Bioengineered Protein‐Coated Polyhydroxybutyrate Particles: A New Platform for Multifunctional Composite Materials

Sodium carbonate/biochar-supported sodium alginate-modified nano zero-valent iron for complete adsorption and degradation of tetracycline in aqueous solution

Enhancement of the heterogeneous adsorption and incorporation of uraniumVI caused by the intercalation of β-cyclodextrin into the green rust

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