000			02976nam a2200337Ia 4500
003			MX-MdCICY
005			20250625164352.0
040			_cCICY
090			_aB-21309
245	1	0	_aCombined antibacterial and antifouling properties of polyethersulfone mixed matrix membranes with zwitterionic graphene oxide nanostructures
490	0		_aPolymer Engineering and Science. 64(8), 3971-3981, 2024, DOI: 10.1002/pen.26825
520	3		_aThe impact of zwitterionic graphene oxide (GO-Arg) nanostructures into polyethersulfone (PES) membranes was studied, aiming to perform mixed matrix membranes (MMMs) with combined antibacterial and antifouling properties. For this purpose, 0.25, 0.50, and 1.0 wt% of GO-Arg were incorporated through the phase inversion method. The chemical composition reveals that the electrostatic interactions of PES, polyvinylpyrrolidone, and GO-Arg occur by enhancing the C-H/N-H vibrations associated with the intrinsic MMMs and their combined antibacterial and antifouling performance. Well-defined finger-like morphology was observed, performing the pore distribution and the finger-cavity inclination induced by the electrostatic charge of GO-Arg. As a result, GO-Arg MMM's hydrophobic properties decreased from 77.8° to 52.3°, inducing a partially hydrophilic surface and improved water flux. The isoelectric point of nanostructured membranes slightly changes by the charge modulation produced by zwitterionic GO-Arg. The antibacterial activity against Gram (?) Escherichia coli was improved, closing the complete bacterial inhibition after 24 h. As a result, antifouling performance was improved, avoiding bacterial adhesion into the membrane surface and the possibility of promoting biofilm formation. Our results demonstrate that zwitterionic nanomaterials in MMMs perform the multifunctional capacity of materials, emerging as an effective alternative with potential application in wastewater treatment. Highlights: The incorporation of zwitterionic GO-Arg improves the mechanical properties of MMMs. GO-Arg-enhanced well-defined porous finger-like morphology in MMMs. GO-Arg improves the antibacterial/antifouling performance of PES-based MMMs. © 2024 Society of Plastics Engineers.
650	1	4	_aANTIBACTERIAL
650	1	4	_aANTIFOULING
650	1	4	_aGRAPHENE OXIDE
650	1	4	_aNANOSTRUCTURED MEMBRANES
650	1	4	_aPOLYETHERSULFONE MEMBRANES
650	1	4	_aZWITTERIONIC
700	1	2	_aCastellanos Espinoza R.
700	1	2	_aHuhn Ibarra M.J.
700	1	2	_aMontes Luna A.J.
700	1	2	_aAguilar-Vega M.
700	1	2	_aHernández Orozco M.M.
700	1	2	_aLuna Bárcenas G.
700	1	2	_aBaldenegro Pérez L.A.
700	1	2	_aGuerra Balcázar M.
700	1	2	_aEspaña Sánchez B.L.
856	4	0	_uhttps://drive.google.com/file/d/1dVIk3EK_7ccbQLCaNJEfPhCLMaMYO1ld/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta @cicy.edu.mx
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