Interfacial Membranization of Regenerated Cellulose Nanoparticles and a Protein Renders Stable Water-in-Water Emulsion

Pickering water-in-water (W/W) emulsions stabilized by biobased colloids are pertinent to engineering biomaterials with hierarchical and confined architectures. In this study, stable W/W emulsions are developed through membranization utilizing biopolymer structures formed by the adsorption of cellulose II nanospheres and a globular protein, bovine serum albumin (BSA), at droplet surfaces. The produced cellulose II nanospheres (NPcat, 63 nm diameter) bearing a soft and highly accessible shell, endow rapid and significant binding (16 mg cm−2) with BSA. NPcat and BSA formed complexes that spontaneously stabilized liquid droplets, resulting in stable W/W emulsions. It is proposed that such a system is a versatile all-aqueous platform for encapsulation, (bio)catalysis, delivery, and synthetic cell mimetics.

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| openaire: EC/H2020/788489/EU//BioELCell

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aqueous two-phase systems, membranization, regenerated cellulose nanospheres, water-in-water emulsion

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10.1002/smll.202400952

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Zhu, Y, Beaumont, M, Solin, K, Spiliopoulos, P, Zhao, B, Tao, H, Kontturi, E, Bai, L & Rojas, O J 2024, ' Interfacial Membranization of Regenerated Cellulose Nanoparticles and a Protein Renders Stable Water-in-Water Emulsion ', Small, vol. 20, no. 44, 2400952 . https://doi.org/10.1002/smll.202400952

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https://urn.fi/URN:NBN:fi:aalto-202408285895

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[article-cris] Kemian tekniikan korkeakoulu / CHEM

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Interfacial Membranization of Regenerated Cellulose Nanoparticles and a Protein Renders Stable Water-in-Water Emulsion

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