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Title: The effectiveness of polyvinylidene fluoride membranes modified with poloxamer and single/multi-walled carbon nanotubes for lactalbumin purification
Authors: Arahman, Nasrul
Sari, Widia Puspita
Sari, Indah Maulana
Rosnelly, Cut Meurah
Mulyati, Sri
Fahrina, Afrillia
Bilad, Muhammad Roil
Gunawan, Poernomo
Pasaoglu, Mehmet Emin
Teber, Oğuz Orhun
Vatanpour, Vahid
Koyuncu, Ismail
Yusni, Yusni
Keywords: Engineering::Chemical engineering
Issue Date: 2022
Source: Arahman, N., Sari, W. P., Sari, I. M., Rosnelly, C. M., Mulyati, S., Fahrina, A., Bilad, M. R., Gunawan, P., Pasaoglu, M. E., Teber, O. O., Vatanpour, V., Koyuncu, I. & Yusni, Y. (2022). The effectiveness of polyvinylidene fluoride membranes modified with poloxamer and single/multi-walled carbon nanotubes for lactalbumin purification. ChemEngineering, 6(6), 88-.
Journal: ChemEngineering
Abstract: The application of separation technology using ultrafiltration/nanofiltration membranes for protein purification and concentration has grown rapidly in the last decade. Innovations to synthesize membranes with properties and performance that suit the characteristics of the feed solution have been and will keep developing. This study aims to examine the strategies to improve the performance of the Polyvinylidene Fluoride (PVDF) membrane for lactalbumin protein isolation. The PVDF polymer membrane was modified by adding Poloxamer 188 (Po1) copolymer and a combination of two types of nanocarbons, i.e., single-walled carbon nanotubes (S-CnT) and multi-walled carbon nanotubes (M-CnT). The following membrane characteristics were examined: mechanical properties, morphological structure, porosity, elemental composition and functional groups, and surface hydrophilicity. The membrane’s filtration performance was analyzed in terms of its ability to pass water (flux) and concentrate lactalbumin protein. The results showed that the changes in the membrane morphological structure were clearly visible in the SEM test, which exposed more open membrane pores after adding Pol and S-CnT/M-CnT additives. The mechanical properties of the membrane also increased, as indicated by the increase in the tensile strength from 12.1 MPa to 16.07 MPa. In general, it was found that the composition of the PVDF/Pol/S-CnT/NMP polymer solutions resulted in better filtration performance compared to the membranes made of only the PVDF/NMP polymer solution.
ISSN: 2305-7084
DOI: 10.3390/chemengineering6060088
Schools: School of Chemical and Biomedical Engineering 
Rights: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// 4.0/).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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