Detail Self-Assembly of Large and Small Molecules into Hierarchically Ordered Sacs and Membranes   Oleh:  Capito, Ramille M. ; Azevedo, Helena S. ; Velichko, Yuri S. ; Mata, Alvaro ; Stupp, Samuel I. Jenis: Article from Bulletin/Magazine Dalam koleksi: SCIENCE (keterangan: ada di Proquest) vol. 319 no. 5871 (Mar. 2008), page 1812-1815. Ketersediaan Perpustakaan FK Nomor Panggil: S01.K.2008.03 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel We report here the self-assembly of macroscopic sacs and membranes at the interface between two aqueous solutions, one containing a megadalton polymer and the other, small self-assembling molecules bearing opposite charge. The resulting structures have a highly ordered architecture in which nanofiber bundles align and reorient by nearly 90° as the membrane grows. The formation of a diffusion barrier upon contact between the two liquids prevents their chaotic mixing. We hypothesize that growth of the membrane is then driven by a dynamic synergy between osmotic pressure of ions and static self-assembly. These robust, self-sealing macroscopic structures offer opportunities in many areas, including the formation of privileged environments for cells, immune barriers, new biological assays, and self-assembly of ordered thick membranes for diverse applications. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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