Pencantuman teraruh sinaran gama asid asetik ke atas regangan membran poli(tetrafluoraetilena) bagi aplikasi biobahan

Translated title of the contribution: Gamma radiation-induced grafting of acetic acid onto expanded poly(tetrafluoroethylene) membranes for biomaterial applications

Ismail Zaitizila, Norsyahidah Mohd Hidzir, Nur Ain Mohd Radzali, Irman Abdul Rahman

Research output: Contribution to journalArticle

Abstract

Expanded poly(tetrafluoroethylene) (ePTFE) is used for many applications including in medical applications, such as for facial implants or as artificial vascular valves. However, due to its natural hydrophobic properties, it has limited efficacy in some applications. To be used as a facial implant, ePTFE must be biocompatible to the surrounding living tissues. Therefore, the modification of the ePTFE surface through a radiation-induced grafting technique was introduced in this study. Acetic acid (AA) was used as a monomer grafted onto ePTFE due to its hydrophilic properties. Monomer concentrations and radiation doses were observed to play an important role in the grafting outcomes. A dose of 15 kGy of γ-ray and 20% of AA concentration was observed to be an optimum grafting parameter in this study with the maximum grafting yield of 14 ± 4%. The result also showed a decrease of surface hydrophobicity for grafted ePTFE with the water contact angle decreased 18° (from 117° to 99°). No extra band was observed in attenuated total reflectance infrared (ATR-FTIR) spectroscopy for grafted ePTFE, which indicated that grafting might occur only on the very top layer of ePTFE. Analysis from field emission scanning electron microscopy coupled with energy dispersive X-ray (FESEM/EDX) revealed a successful grafting as the oxygen peak can be seen on the treated sample.

Original languageMalay
Pages (from-to)527-534
Number of pages8
JournalMalaysian Journal of Analytical Sciences
Volume21
Issue number3
DOIs
Publication statusPublished - 2017

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Biocompatible Materials
Polytetrafluoroethylenes
Acetic Acid
Gamma rays
Membranes
Monomers
Medical applications
Hydrophobicity
Field emission
Dosimetry
Contact angle
Infrared spectroscopy
Tissue
Oxygen
Radiation
X rays
Scanning electron microscopy
Water

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

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title = "Pencantuman teraruh sinaran gama asid asetik ke atas regangan membran poli(tetrafluoraetilena) bagi aplikasi biobahan",
abstract = "Expanded poly(tetrafluoroethylene) (ePTFE) is used for many applications including in medical applications, such as for facial implants or as artificial vascular valves. However, due to its natural hydrophobic properties, it has limited efficacy in some applications. To be used as a facial implant, ePTFE must be biocompatible to the surrounding living tissues. Therefore, the modification of the ePTFE surface through a radiation-induced grafting technique was introduced in this study. Acetic acid (AA) was used as a monomer grafted onto ePTFE due to its hydrophilic properties. Monomer concentrations and radiation doses were observed to play an important role in the grafting outcomes. A dose of 15 kGy of γ-ray and 20{\%} of AA concentration was observed to be an optimum grafting parameter in this study with the maximum grafting yield of 14 ± 4{\%}. The result also showed a decrease of surface hydrophobicity for grafted ePTFE with the water contact angle decreased 18° (from 117° to 99°). No extra band was observed in attenuated total reflectance infrared (ATR-FTIR) spectroscopy for grafted ePTFE, which indicated that grafting might occur only on the very top layer of ePTFE. Analysis from field emission scanning electron microscopy coupled with energy dispersive X-ray (FESEM/EDX) revealed a successful grafting as the oxygen peak can be seen on the treated sample.",
keywords = "Acetic acid, Expanded poly(tetrafluoroethylene), Grafting, Radiation-induced grafting",
author = "Ismail Zaitizila and {Mohd Hidzir}, Norsyahidah and {Mohd Radzali}, {Nur Ain} and {Abdul Rahman}, Irman",
year = "2017",
doi = "10.17576/mjas-2017-2103-02",
language = "Malay",
volume = "21",
pages = "527--534",
journal = "Malaysian Journal of Analytical Sciences",
issn = "1394-2506",
publisher = "Faculty of Science and Technology, Universiti Kebangsaan Malaysia",
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AU - Zaitizila, Ismail

AU - Mohd Hidzir, Norsyahidah

AU - Mohd Radzali, Nur Ain

AU - Abdul Rahman, Irman

PY - 2017

Y1 - 2017

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AB - Expanded poly(tetrafluoroethylene) (ePTFE) is used for many applications including in medical applications, such as for facial implants or as artificial vascular valves. However, due to its natural hydrophobic properties, it has limited efficacy in some applications. To be used as a facial implant, ePTFE must be biocompatible to the surrounding living tissues. Therefore, the modification of the ePTFE surface through a radiation-induced grafting technique was introduced in this study. Acetic acid (AA) was used as a monomer grafted onto ePTFE due to its hydrophilic properties. Monomer concentrations and radiation doses were observed to play an important role in the grafting outcomes. A dose of 15 kGy of γ-ray and 20% of AA concentration was observed to be an optimum grafting parameter in this study with the maximum grafting yield of 14 ± 4%. The result also showed a decrease of surface hydrophobicity for grafted ePTFE with the water contact angle decreased 18° (from 117° to 99°). No extra band was observed in attenuated total reflectance infrared (ATR-FTIR) spectroscopy for grafted ePTFE, which indicated that grafting might occur only on the very top layer of ePTFE. Analysis from field emission scanning electron microscopy coupled with energy dispersive X-ray (FESEM/EDX) revealed a successful grafting as the oxygen peak can be seen on the treated sample.

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KW - Radiation-induced grafting

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