Surface Engineering of Gallium Nitride with Biomolecules

氮化镓生物分子表面工程

• 批准号: 0856391
• 负责人: Albena Ivanisevic
• 金额: $ 26.22万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-15 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0856391&HistoricalAwards=false
• 关键词: Surface; Engineering; Gallium; Nitride; Biomolecules

The research objective of this award is to develop a versatile method to engineer the surface properties of gallium nitride (GaN), a semiconductor material used for the fabrication of different microelectronic devices. The work will start by utilizing a Grubb?s catalyst previously used in polymer synthesis. The Grubb?s catalyst will enable to modify the surface with a variety of different functional groups using an olefin cross metathesis reaction. The availability of a general route to place different chemical functionalities on the surface is essential for the development of (bio)sensors. The work progresses from the development of the catalysis reaction on the GaN surface to the optimization of all the reaction conditions so that several classes of biomolecules can be anchored on the GaN surface while still retaining their recognition properties and specificity. Deliverables of this award will include an empirical model for selectivity of olefin cross metathesis on GaN. The model will be derived by performing a set of surface characterization tests in order to quantify chemical, morphological and mechanical properties of the modified GaN.If successful, the results of this research will increase the understanding of the possible ways to enhance the properties of GaN. The knowledge can be used to design new types of devices and interfaces that utilize a more robust and functional GaN. For example, GaN based transistor devices can benefit from high chemical stability and be used in more reliable and label free biosensor schemes if desired chemical groups are present on surfaces. Undergraduate and graduate students, as well as underrepresented minorities such as women majoring in engineering will be engaged with the research efforts as well as an outreach program with local middle school students. Through the outreach activities associated with this work, the students will be to educate the audience on their research efforts, to convey the excitement of their scientific investigation, to portray a positive image of their research and to provide role models for the younger attendants (middle and high school students).

该奖项的研究目标是开发一种通用方法来设计氮化镓（GaN）的表面特性，氮化镓是一种用于制造不同微电子器件的半导体材料。 这项工作将从利用先前用于聚合物合成的格鲁布催化剂开始。 格鲁布催化剂将能够利用烯烃交叉复分解反应用各种不同的官能团来修饰表面。 在表面放置不同化学功能的通用途径对于（生物）传感器的开发至关重要。 这项工作从开发 GaN 表面催化反应到优化所有反应条件，使几类生物分子可以锚定在 GaN 表面，同时仍保留其识别特性和特异性。 该奖项的交付成果将包括 GaN 上烯烃交叉复分解选择性的经验模型。 该模型将通过进行一系列表面表征测试来导出，以量化改性 GaN 的化学、形态和机械性能。如果成功，这项研究的结果将加深人们对增强 GaN 性能的可能方法的理解。 这些知识可用于设计利用更稳健、功能更强大的 GaN 的新型设备和接口。 例如，如果表面上存在所需的化学基团，基于 GaN 的晶体管器件可以受益于高化学稳定性，并且可以用于更可靠且无标记的生物传感器方案。 本科生和研究生以及工程专业女性等代表性不足的少数群体将参与研究工作以及与当地中学生的外展计划。 通过与这项工作相关的外展活动，学生们将向观众介绍他们的研究工作，传达他们科学研究的兴奋感，描绘他们研究的积极形象，并为年轻的参与者（初中生和高中生）提供榜样。