Spatially selective modification of PLLA surface: From hydrophobic to hydrophilic or to repellent

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• 作者：Kristina Bastekova^a ; Olga Guselnikova^a ; ^b ; Pavel Postnikov^b ; ^{postnikov@tpu.ru} ; Roman Elashnikov^a ; Martin Kunes^c ; ^d ; Zdenka Kolska^e ; Vaclav &Scaron ; vorčí ; k^a ; Oleksiy Lyutakov^a ; ^b ; ^{lyutakoo@vscht.cz}
• 关键词：PLLA ; Surface modification ; Surface properties ; Plasma ; Diazonium salt
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：397
• 期：Complete
• 页码：226-234
• 全文大小：2972 K
• 卷排序：397

文摘

Combination of inert plasma treatment and diazonium chemistry for modification of PLLA surface properties was reported for the first time. Chemical grafting followed the plasma treatment lead to sufficient attachment of various organic compounds to PLLA surface. Applied method allows the varying of PLLA surface properties in the very wide range. Depending on the grafted compound repellent or bioadhesive properties, as well as tunable (bio)degradation rate was realized on the PLLA films. Finally, applied method allows the spatial selective modification – the opposite properties can be introduced on the two sides of PLLA films.