Micrometer-sized spherical assemblies of polypeptides and small molecules by acid-base chemistry

被引:50
作者
McKenna, BJ
Birkedal, H [1 ]
Bartl, MH
Deming, TJ
Stucky, GD
机构
[1] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Calif Nanosyst Inst, Santa Barbara, CA 93106 USA
[3] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
关键词
colloids; hybrid materials; polymers; self-assembly; template synthesis;
D O I
10.1002/anie.200460510
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Spontaneous formation of microspheres is observed when charged poly(amino acid)s are combined with certain oppositely charged, multivalent organic ions. The surfaces of the spheres are chemically active and act as templates for silica condensation, and the assemblies can be made hollow or polymer-filled, depending on the silica precursor (see image; the fluorescent polymer forms a layer inside a colloidal-silica-coated sphere).
引用
收藏
页码:5652 / 5655
页数:4
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