TY - JOUR
T1 - Production of sub-10 micrometre cellulose microbeads using isoporous membranes
AU - Ekanem, Ekanem E.
AU - Sabirova, Ainur
AU - Callaghan, Ciarán
AU - Scott, Janet L.
AU - Edler, Karen J.
AU - Nunes, Suzana Pereira
AU - Mattia, Davide
N1 - KAUST Repository Item: Exported on 2022-09-14
Acknowledgements: The authors wish to thank the UK Engineering and Physical Sciences Research Council for financial support (grant EP/P027490/1).
PY - 2022/5/2
Y1 - 2022/5/2
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.
UR - http://hdl.handle.net/10754/679741
UR - https://linkinghub.elsevier.com/retrieve/pii/S2772421222000125
UR - http://www.scopus.com/inward/record.url?scp=85133722497&partnerID=8YFLogxK
U2 - 10.1016/j.memlet.2022.100024
DO - 10.1016/j.memlet.2022.100024
M3 - Article
SN - 2772-4212
VL - 2
SP - 100024
JO - Journal of Membrane Science Letters
JF - Journal of Membrane Science Letters
IS - 1
ER -