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To avoid the possible chain relaxation processes, bifunctional PEG should be linked to PHBV-NH2 surfaces through the reaction between the amino groups and the hydroxysuccinimidyl groups, immediately after NH3 plasma treatment. The contact angle of the resulting film was 35(2, consistent with PEG films reported in the literature.38 Finally, RGD peptides were grafted and the contact angle rose to 45(1 because of the hydrophobic groups of the introduced peptides.39 Such a surface modification strategy renders the PHBV surface hydrophilicity through the NH3 plasma treatment and the introduction of PEG segments. In general, the hydrophilic surface property is helpful to improve the material¡¯s biocompatibility |
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°®ÓëÓêÏÂ: ½ð±Ò+1 2015-04-01 19:09:25
Malyhon: ½ð±Ò+8, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-04-02 16:03:02
°®ÓëÓêÏÂ: ½ð±Ò+1 2015-04-01 19:09:25
Malyhon: ½ð±Ò+8, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-04-02 16:03:02
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