کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
594690 1453988 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of DNA capsules cross-linked through NeutrAvidin–biotin interaction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Preparation of DNA capsules cross-linked through NeutrAvidin–biotin interaction
چکیده انگلیسی

We developed a templating method based on NeutrAvidin–biotin interaction, for the preparation of hollow microcapsules composed of DNA. In this method, porous calcium carbonate microparticles were employed as a sacrificial template and an adsorbent for DNA, and NeutrAvidin was chosen as a cross-linker for biotin-labeled DNA. By using biotin-labeled DNA with a degree of biotinylation high enough to retain a hollow spherical structure, hollow DNA microcapsules were obtained with the same size as the templates after the dissolution of the templates with chelating agents. In addition, the combination biotin-labeled DNA and NeutrAvidin could be applied to layer-by-layer assembled multilayers. Layer-by-layer assembled capsules exhibited the size-dependent permeability of macromolecular solutes. This study suggests that our method would be facile and widely applicable to prepare various polymer capsules.

Figure optionsDownload as PowerPoint slideHighlights
► Preparation technique for hollow DNA microcapsules cross-linked with NeutrAvidin.
► Highly biotinylated DNA is required to retain a hollow spherical structure.
► Layer-by-layer assemblies can be formed with biotin-labeled DNA and NeutrAvidin.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 384, Issues 1–3, 5 July 2011, Pages 529–535
نویسندگان
, , , , ,