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Simultaneous Improvement of Antimicrobial, Antifouling, and Transport Properties of Forward Osmosis Membranes with Immobilized Highly-Compatible Polyrhodanine Nanoparticles.
Environ Sci Technol 2018; 52(9):5246-5258ES

Abstract

This work shows that incorporating highly compatible polyrhodanine nanoparticles (PRh-NPs) into a polyamide (PA) active layer allows for fabricating forward osmosis (FO) thin-film composite (TFC)-PRh membranes that have simultaneously improved antimicrobial, antifouling, and transport properties. To the best of our knowledge, this is the first reported study of its kind to this date. The presence of the PRh-NPs on the surface of the TFC-PRh membranes active layers is evaluated using FT-IR spectroscopy, SEM, and XPS. The microscopic interactions and their impact on the compatibility of the PRh-NPs with the PA chains were studied using molecular dynamics simulations. When tested in forward osmosis, the TFC-PRh-0.01 membrane (with 0.01 wt % PRh) shows significantly improved permeability and selectivity because of the small size and the high compatibility of the PRh-NPs with PA chains. For example, the TFC-PRh-0.01 membrane exhibits a FO water flux of 41 l/(m2·h), higher than a water flux of 34 l/(m2·h) for the pristine TFC membrane, when 1.5 molar NaCl was used as draw solution in the active-layer feed-solution mode. Moreover, the reverse solute flux of the TFC-PRh-0.01 membrane decreases to about 115 mmol/(m2·h) representing a 52% improvement in the reverse solute flux of this membrane in comparison to the pristine TFC membrane. The surfaces of the TFC-PRh membranes were found to be smoother and more hydrophilic than those of the pristine TFC membrane, providing improved antifouling properties confirmed by a flux decline of about 38% for the TFC-PRh-0.01 membranes against a flux decline of about 50% for the pristine TFC membrane when evaluated with a sodium alginate solution. The antimicrobial traits of the TFC-PRh-0.01 membrane evaluated using colony-forming units and fluorescence imaging indicate that the PRh-NPs hinder cell deposition on the TFC-PRh-0.01 membrane surface effectively, limiting biofilm formation.

Authors+Show Affiliations

Department of Chemical Engineering , Babol Noushirvani University of Technology , Shariati Avenue , Babol , Mazandaran 4714871167 , Iran.Department of Chemical Engineering , Babol Noushirvani University of Technology , Shariati Avenue , Babol , Mazandaran 4714871167 , Iran.Department of Chemical Engineering , Babol Noushirvani University of Technology , Shariati Avenue , Babol , Mazandaran 4714871167 , Iran.Department of Chemical & Biological Engineering , University of Alabama , Tuscaloosa , Alabama 35487 , United States.Department of Chemical Engineering , Babol Noushirvani University of Technology , Shariati Avenue , Babol , Mazandaran 4714871167 , Iran.Department of Chemical and Biological Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States.Department of Chemical Engineering , Babol Noushirvani University of Technology , Shariati Avenue , Babol , Mazandaran 4714871167 , Iran.Swedish Centre for Resource Recovery , University of Borås , S-50190 Borås , Sweden.Department of Chemical and Biological Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29589940

Citation

Rahimpour, Ahmad, et al. "Simultaneous Improvement of Antimicrobial, Antifouling, and Transport Properties of Forward Osmosis Membranes With Immobilized Highly-Compatible Polyrhodanine Nanoparticles." Environmental Science & Technology, vol. 52, no. 9, 2018, pp. 5246-5258.
Rahimpour A, Seyedpour SF, Aghapour Aktij S, et al. Simultaneous Improvement of Antimicrobial, Antifouling, and Transport Properties of Forward Osmosis Membranes with Immobilized Highly-Compatible Polyrhodanine Nanoparticles. Environ Sci Technol. 2018;52(9):5246-5258.
Rahimpour, A., Seyedpour, S. F., Aghapour Aktij, S., Dadashi Firouzjaei, M., Zirehpour, A., Arabi Shamsabadi, A., ... Soroush, M. (2018). Simultaneous Improvement of Antimicrobial, Antifouling, and Transport Properties of Forward Osmosis Membranes with Immobilized Highly-Compatible Polyrhodanine Nanoparticles. Environmental Science & Technology, 52(9), pp. 5246-5258. doi:10.1021/acs.est.8b00804.
Rahimpour A, et al. Simultaneous Improvement of Antimicrobial, Antifouling, and Transport Properties of Forward Osmosis Membranes With Immobilized Highly-Compatible Polyrhodanine Nanoparticles. Environ Sci Technol. 2018 05 1;52(9):5246-5258. PubMed PMID: 29589940.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Simultaneous Improvement of Antimicrobial, Antifouling, and Transport Properties of Forward Osmosis Membranes with Immobilized Highly-Compatible Polyrhodanine Nanoparticles. AU - Rahimpour,Ahmad, AU - Seyedpour,S Fatemeh, AU - Aghapour Aktij,Sadegh, AU - Dadashi Firouzjaei,Mostafa, AU - Zirehpour,Alireza, AU - Arabi Shamsabadi,Ahmad, AU - Khoshhal Salestan,Saeed, AU - Jabbari,Mostafa, AU - Soroush,Masoud, Y1 - 2018/04/13/ PY - 2018/3/29/pubmed PY - 2018/3/29/medline PY - 2018/3/29/entrez SP - 5246 EP - 5258 JF - Environmental science & technology JO - Environ. Sci. Technol. VL - 52 IS - 9 N2 - This work shows that incorporating highly compatible polyrhodanine nanoparticles (PRh-NPs) into a polyamide (PA) active layer allows for fabricating forward osmosis (FO) thin-film composite (TFC)-PRh membranes that have simultaneously improved antimicrobial, antifouling, and transport properties. To the best of our knowledge, this is the first reported study of its kind to this date. The presence of the PRh-NPs on the surface of the TFC-PRh membranes active layers is evaluated using FT-IR spectroscopy, SEM, and XPS. The microscopic interactions and their impact on the compatibility of the PRh-NPs with the PA chains were studied using molecular dynamics simulations. When tested in forward osmosis, the TFC-PRh-0.01 membrane (with 0.01 wt % PRh) shows significantly improved permeability and selectivity because of the small size and the high compatibility of the PRh-NPs with PA chains. For example, the TFC-PRh-0.01 membrane exhibits a FO water flux of 41 l/(m2·h), higher than a water flux of 34 l/(m2·h) for the pristine TFC membrane, when 1.5 molar NaCl was used as draw solution in the active-layer feed-solution mode. Moreover, the reverse solute flux of the TFC-PRh-0.01 membrane decreases to about 115 mmol/(m2·h) representing a 52% improvement in the reverse solute flux of this membrane in comparison to the pristine TFC membrane. The surfaces of the TFC-PRh membranes were found to be smoother and more hydrophilic than those of the pristine TFC membrane, providing improved antifouling properties confirmed by a flux decline of about 38% for the TFC-PRh-0.01 membranes against a flux decline of about 50% for the pristine TFC membrane when evaluated with a sodium alginate solution. The antimicrobial traits of the TFC-PRh-0.01 membrane evaluated using colony-forming units and fluorescence imaging indicate that the PRh-NPs hinder cell deposition on the TFC-PRh-0.01 membrane surface effectively, limiting biofilm formation. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/29589940/Simultaneous_Improvement_of_Antimicrobial_Antifouling_and_Transport_Properties_of_Forward_Osmosis_Membranes_with_Immobilized_Highly_Compatible_Polyrhodanine_Nanoparticles_ L2 - https://dx.doi.org/10.1021/acs.est.8b00804 DB - PRIME DP - Unbound Medicine ER -