MAPLE deposition of biomaterial multilayers

被引:26
作者
Califano, Valeria [1 ]
Bloisi, Francesco [1 ,2 ]
Vicari, Luciano R. M. [1 ,2 ]
Colombi, Paolo [3 ]
Bontempi, Elza [3 ]
Depero, Laura E. [3 ]
机构
[1] Univ Naples Federico 2, CNR, INFM Coherentia, I-80125 Naples, Italy
[2] Univ Naples Federico 2, Dipartimento Sci Fisiche, Fac Ingn, I-80125 Naples, Italy
[3] Univ Brescia, Lab Chim Tecnol, I-25123 Brescia, Italy
关键词
MAPLE; surface morphology; thin films; polyethylene glycol;
D O I
10.1016/j.apsusc.2008.05.295
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Double layers of polyethylene glycol (PEG) and 3-(3,4-dihydroxyphenyl)-2-methyl-L-alanine (m-DOPA) thin films were obtained by matrix assisted pulsed laser evaporation (MAPLE) technique, by depositing a first layer of m-DOPA on Si substrate and a second layer of PEG on top of it. The films were characterized by low angle X-ray diffraction (LAXRD), X-ray reflectivity (XRR), atomic force microscopy (AFM), and micro-Raman spectroscopy. From these analyses it resulted that PEG was deposited without any relevant damage both in terms of chemical structure and molecular weight. Furthermore, PEG chains were mostly in the extended conformation, although PEG micelles appeared. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:7143 / 7148
页数:6
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