Ordering of quantum dots using genetically engineered viruses
Ordering of quantum dots using genetically engineered viruses
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DOI：
10.1126/science.1068054
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发表时间：
2002-05-03
期刊：
影响因子：
56.9
通讯作者：
Belcher, AM
中科院分区：
文献类型：
--
作者：
Lee, SW;Mao, CB;Belcher, AM
利用液晶系统制备了一种由基因工程M13噬菌体和硫化锌纳米晶体组成的高度有序的复合材料。选择对ZnS晶体表面具有特定识别片段的噬菌体作为自排序系统的基础。噬菌体与ZnS溶液前体偶联，自发地进化出一种自支撑的杂化膜材料，在纳米尺度和微米尺度上有序排列成类似于72微米的结构域，这些结构域连续超过一厘米的长度尺度。此外，制备了由溶剂浓度和磁场控制其溶变液晶相行为的混悬液。
A liquid crystal system was used for the fabrication of a highly ordered composite material from genetically engineered M13 bacteriophage and zinc sulfide (ZnS) nanocrystals. The bacteriophage, which formed the basis of the self-ordering system, were selected to have a specific recognition moiety for ZnS crystal surfaces. The bacteriophage were coupled with ZnS solution precursors and spontaneously evolved a self-supporting hybrid film material that was ordered at the nanoscale and at the micrometer scale into similar to72-micrometer domains, which were continuous over a centimeter length scale. In addition, suspensions were prepared in which the lyotropic liquid crystalline phase behavior of the hybrid material was controlled by solvent concentration and by the use of a magnetic field.