Surface engineering of poly(methyl methacrylate)-reduced graphene oxide composite films by Au7+ ion irradiation for biomedical application

doi:10.1016/j.radphyschem.2022.110051

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 期刊論文 > Item 987654321/124067

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题名:	Surface engineering of poly(methyl methacrylate)-reduced graphene oxide composite films by Au7+ ion irradiation for biomedical application
作者:	J. Ramana Ramya;K. T. Arul;R. Ilangovan;P. Sathiamurthi;K. Asokan;C. L. Dong;A. Arockiarajan;S. Narayana Kalkura
关键词:	Irradiation;Atomic disorder;PMMA-rGO composites
日期:	2022-06
上传时间:	2023-05-12 12:08:19 (UTC+8)
出版者:	Elsevier Ltd
摘要:	In this work, PMMA-reduced graphene oxide (rGO) films (PrGO) were prepared by solvent evaporation and further, swift heavy ions (100 MeV gold ion) irradiated on them by varying fluences viz. 1 × 1011, 5 × 1011 and 1 × 1012 ions/cm2 (referred as PrGO-111, PrGO-511, PrGO-112). There was a low angle peak shift of rGO and the reduction of crystallinity at higher fluences. On irradiation, the intensities of the vibrational modes of C–H bonding, hydroxyl, carboxyl groups of rGO and the band gap (36%) are reduced. The surface roughness (69%), pore size (∼10–24 μm), hemocompatibility and contact angle are enhanced on irradiation. The antibacterial efficiency and cell proliferation were augmented on PrGO-511 compared to the other films. The Au ion irradiation tailors surface roughness, contact angle, antibacterial activity and cell proliferation. Further, the atomic local bonding and surface roughness are correlated with the biological properties. Thus, the irradiated PrGO films could be an excellent candidate for applications in the biomedical field.
關聯:	Radiation Physics and Chemistry 195, 110051
DOI:	10.1016/j.radphyschem.2022.110051
显示于类别:	[電機工程學系暨研究所] 期刊論文

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