高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (9): 1823.

• 研究简报 • 上一篇    下一篇

聚氨酯分子印章的制备和表征

刘正春1,2, 贺全国1, 肖鹏峰1, 梁波3, 何农跃1, 陆祖宏1   

  1. 1. 东南大学国家教育部分子与生物分子电子学开放实验室, 南京 210096;
    2. 怀化师范高等专科学校化学系, 怀化 418008;
    3. 湘潭大学化学学院, 湘潭 411105
  • 收稿日期:2001-07-09 出版日期:2002-09-24 发布日期:2002-09-24
  • 通讯作者: 陆祖宏(1960年出生),男,博士,教授,博士生导师,主要从事生物芯片和生物传感器方面的研究.E-mail:zhlu@seu.edu.cn E-mail:zhlu@seu.edu.cn
  • 基金资助:

    国家八六三计划(批准号:103-13-05-01101-01-01);九七三计划(批准号:G1998051204);国家自然科学基金(批准号:60071001);教育部“高等学校骨干教师资助计划”项目资助

Preparation and Characterization of Polyurethane Molecular Stamps

LIU Zheng-Chun1,2, HE Quan-Guo1, XIAO Peng-Feng1, LIANG Bo3, HE Nong-Yue1, LU Zu-Hong1   

  1. 1. Key Laboratory for Molecularand Bio-molecular Electronicsof Educational Ministry, East-South University, Nanjing 210096, China;
    2. Departmentof Chemistry, Huaihua Teachers College, Huaihua 418008, China;
    3. College of Chemistry, Xiangtan University, Xiangtan 411105, China
  • Received:2001-07-09 Online:2002-09-24 Published:2002-09-24

关键词: 分子印章, 聚氨酯, 软平板印刷, DNA微阵列

Abstract: Polyurethane based on polypropylene glycol(PPG) and TDIusing 3,3'-dichloride-4,4'-methylenedianiline(MOCA) as the crosslinker is presented for the first time to fabricate molecular stamps(PU stamps) for the synthesis of DNA microarray with contact procedure. The predictability of the process is achieved by utilizing commercially available starting materials. SEM analysis of the morphology of PU stamps and photoresist motherboard showed that PUelastomer could replicate subtly the motherboard's patterns with a high fidelity. It was proved from the contact angle measurement that PU stamps surface has a good affinity with acetonitrile, which guarantee the well-distribution of DNA monomers on patterned stamps. Laser confocal fluorescence microscopy images of oligonucleotide arrays confirm that polyurethane is an excellent material for molecular stamps.

Key words: Molecular stamps, Polyurethane, Soft lithography, DNA Microarray

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