Production of sub-10 micrometre cellulose microbeads using isoporous membranes

Ekanem E. Ekanem; Ainur Sabirova; Ciarán Callaghan; Janet L. Scott; Karen J. Edler; Suzana P. Nunes; Davide Mattia

doi:10.1016/j.memlet.2022.100024

Production of sub-10 micrometre cellulose microbeads using isoporous membranes

Ekanem E. Ekanem, Ainur Sabirova, Ciarán Callaghan, Janet L. Scott, Karen J. Edler, Suzana P. Nunes, Davide Mattia

King Abdullah University of Science and Technology

Research output: Contribution to journal › Article › peer-review

4 Citations (SciVal)

Abstract

The production of sub-10 µm cellulose microbeads via membrane emulsification using isoporous membranes is reported here for the first time. Poly(ethylene terephthalate) membranes, with defined interpore distances, pore diameters and straight-through pores were fabricated via photolithography. A dispersed phase of 8 wt% cellulose solution was extruded through the membrane pores, forming, due to shear provided by an overhead stirrer, cellulose solution droplets dispersed in a continuous phase composed of 2 wt% and 5 wt% Span in sunflower oil. Upon phase inversion with ethanol, sub-10 µm microbeads with a coefficient of variation (CV) < 45 % were produced by exploring the Weber number (We_d) - Capillary number (Ca_c) emulsion generation space. These results show that sub-10 µm cellulose microbeads can be produced using isoporous polymer membranes fabricated via photolithography, for use in a wide range of applications in the personal care, food and drug industries.

Original language	English
Article number	100024
Journal	Journal of Membrane Science Letters
Volume	2
Issue number	1
Early online date	2 May 2022
DOIs	https://doi.org/10.1016/j.memlet.2022.100024
Publication status	Published - 31 May 2022

Funding

The authors wish to thank the UK Engineering and Physical Sciences Research Council for financial support (grant EP/P027490/1 ).

Keywords

cellulose microbeads
Isoporous membranes
membrane emulsification
photolithography
sustainable microparticles

ASJC Scopus subject areas

Filtration and Separation
Physical and Theoretical Chemistry
General Materials Science
Biochemistry

Access to Document

10.1016/j.memlet.2022.100024Licence: CC BY

Cite this

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title = "Production of sub-10 micrometre cellulose microbeads using isoporous membranes",

abstract = "The production of sub-10 µm cellulose microbeads via membrane emulsification using isoporous membranes is reported here for the first time. Poly(ethylene terephthalate) membranes, with defined interpore distances, pore diameters and straight-through pores were fabricated via photolithography. A dispersed phase of 8 wt% cellulose solution was extruded through the membrane pores, forming, due to shear provided by an overhead stirrer, cellulose solution droplets dispersed in a continuous phase composed of 2 wt% and 5 wt% Span in sunflower oil. Upon phase inversion with ethanol, sub-10 µm microbeads with a coefficient of variation (CV) < 45 % were produced by exploring the Weber number (Wed) - Capillary number (Cac) emulsion generation space. These results show that sub-10 µm cellulose microbeads can be produced using isoporous polymer membranes fabricated via photolithography, for use in a wide range of applications in the personal care, food and drug industries.",

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AU - Ekanem, Ekanem E.

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AU - Scott, Janet L.

AU - Edler, Karen J.

AU - Nunes, Suzana P.

AU - Mattia, Davide

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Y1 - 2022/5/31

N2 - The production of sub-10 µm cellulose microbeads via membrane emulsification using isoporous membranes is reported here for the first time. Poly(ethylene terephthalate) membranes, with defined interpore distances, pore diameters and straight-through pores were fabricated via photolithography. A dispersed phase of 8 wt% cellulose solution was extruded through the membrane pores, forming, due to shear provided by an overhead stirrer, cellulose solution droplets dispersed in a continuous phase composed of 2 wt% and 5 wt% Span in sunflower oil. Upon phase inversion with ethanol, sub-10 µm microbeads with a coefficient of variation (CV) < 45 % were produced by exploring the Weber number (Wed) - Capillary number (Cac) emulsion generation space. These results show that sub-10 µm cellulose microbeads can be produced using isoporous polymer membranes fabricated via photolithography, for use in a wide range of applications in the personal care, food and drug industries.

AB - The production of sub-10 µm cellulose microbeads via membrane emulsification using isoporous membranes is reported here for the first time. Poly(ethylene terephthalate) membranes, with defined interpore distances, pore diameters and straight-through pores were fabricated via photolithography. A dispersed phase of 8 wt% cellulose solution was extruded through the membrane pores, forming, due to shear provided by an overhead stirrer, cellulose solution droplets dispersed in a continuous phase composed of 2 wt% and 5 wt% Span in sunflower oil. Upon phase inversion with ethanol, sub-10 µm microbeads with a coefficient of variation (CV) < 45 % were produced by exploring the Weber number (Wed) - Capillary number (Cac) emulsion generation space. These results show that sub-10 µm cellulose microbeads can be produced using isoporous polymer membranes fabricated via photolithography, for use in a wide range of applications in the personal care, food and drug industries.

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Production of sub-10 micrometre cellulose microbeads using isoporous membranes

Abstract

Funding

Keywords

ASJC Scopus subject areas

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Biodegradable Microbeads and Microspheres

Dataset for "Production of sub-10 micrometre cellulose microbeads using isoporous membranes"

Cite this

Production of sub-10 micrometre cellulose microbeads using isoporous membranes

Abstract

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Projects

Biodegradable Microbeads and Microspheres

Datasets

Dataset for "Production of sub-10 micrometre cellulose microbeads using isoporous membranes"

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