安吉拉-贝尔彻 材料科学家

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Angela Belcher
Materials Scientist | Class of 2004
Dissolving the distinctions between organic and inorganic chemistry by coaxing viruses to manufacture microelectronic devices.

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Title
Materials Scientist
Affiliation
Massachusetts Institute of Technology
Location
Cambridge, Massachusetts
Age
37 at time of award
Area of Focus
Materials Science and Engineering
Published September 28, 2004
ABOUT ANGELA'S WORK
Angela Belcher is a materials scientist whose research opens new avenues for controlling inorganic chemical reactions. Rather than relying on traditional tools of physical chemistry, such as high temperature, pressure, or metallic catalysis, Belcher has devised a means to use genetically engineered viruses to serve as templates for the synthesis of submicroscopic conductors and semiconductors. As a graduate student, she demonstrated how natural proteins in abalone establish templates for the mineralization of calcium carbonates, the principal ingredient of chalk, to form its extremely hard shell. She followed these observations by engineering peptides that bind with great specificity to semiconductor alloys such as gallium arsenide. Belcher has demonstrated a proclivity for developing new techniques for manipulating systems that straddle the boundary of organic and inorganic chemistry at the molecular scale. In her most recent work, she has genetically modified viruses (strains that only attack bacteria and are harmless to humans) to interact with solutions of inorganic semiconductors, yielding self-assembling metal films and wires with diameters in the low tens of nanometers. The ability to control this self-assembly process may one day lead to the next generation of microelectronics or other nanoscale machines.

BIOGRAPHY
Angela Belcher received a B.S. (1991) and a Ph.D. (1997) from the University of California, Santa Barbara, where she was also a postdoctoral fellow (1997–1999). In 1999, she joined the Department of Chemistry and Biochemistry at the University of Texas, Austin, as an associate professor. Since 2002, she has been the John Chipman Career Development Associate Professor of Materials Science and Engineering at the Massachusetts Institute of Technology. Her research has been published in journals such as Science and Nature.



安吉拉-贝尔彻
材料科学家|2004级
通过哄骗病毒来制造微电子装置，消除了有机和无机化学之间的区别。

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标题
材料科学家
工作单位
马萨诸塞州技术研究所
工作地点
马萨诸塞州剑桥市
年龄
获奖时37岁
重点领域
材料科学和工程
发表于2004年9月28日
关于安吉拉的工作
安吉拉-贝尔彻是一位材料科学家，她的研究为控制无机化学反应开辟了新途径。贝尔彻没有依靠传统的物理化学工具，如高温、高压或金属催化，而是设计了一种方法，利用基因工程病毒作为模板来合成亚微观的导体和半导体。作为一名研究生，她证明了鲍鱼中的天然蛋白质如何为碳酸钙（白垩的主要成分）的矿化建立模板，以形成其极硬的外壳。在这些观察之后，她设计了能与砷化镓等半导体合金高度特异性结合的多肽。贝尔彻表现出开发新技术的倾向性，以便在分子尺度上操纵横跨有机和无机化学边界的系统。在她最近的工作中，她对病毒（只攻击细菌且对人类无害的菌株）进行了基因改造，使其与无机半导体溶液相互作用，产生了直径为几十纳米的自组装金属薄膜和金属丝。控制这种自组装过程的能力有一天可能会导致下一代微电子或其他纳米级机器的出现。

个人简历
安吉拉-贝尔彻在加州大学圣巴巴拉分校获得学士（1991年）和博士学位（1997年），她还在那里做了博士后研究（1997-1999年）。1999年，她加入德克萨斯大学奥斯汀分校的化学和生物化学系，担任副教授。自2002年以来，她一直是麻省理工学院材料科学和工程系的约翰-奇普曼职业发展副教授。她的研究发表在《科学》和《自然》等杂志上。