DNA templated compoud semiconductor nanowire sensors

DNA模板化合物半导体纳米线传感器

• 批准号: 103437
• 金额: $ 25.65万
• 依托单位: TOUCHLIGHT GENETICS LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=103437
• 关键词: DNA; templated; compoud; semiconductor; nanowire

Nanowires are simply very thin wires, but they have unusual and useful properties because of their size (1000x thinner than hair).In particular, the flow of small electric currents in a nanowire responds to the presence of chemicals, and quantum confinement allows for controllable photoluminescent properties.Many gases of relevance to industrial processes, or healthcare (compounds in breath), or environmental pollutants (oxides of nitrogen, ozone) can be sensed using nanowire-based devices.Quantum dots can be used for a number of applications, such as optical barcodes and display screens.However, a number of manufacturing and technical obstacles remain. Methods for preparing semiconductor nanowires exist, but these require elaborate equipment and high expense.Work at Newcastle University has shown that nanowires may be formed by low temperature reactions in water using DNA as a template on which to form the semiconductor as a nanowire. Until the recent advances by Touchlight Genetics, large quantities of pure, synthetic DNA were not available.The collaboration between Touchlight and Newcastle will aim to develop manufacturing techniques to exploit the novel possibilities for sensor manufacture that these advances enable.

纳米线只是非常细的线，但由于其尺寸，（比头发细1000倍）。特别是，纳米线中的小电流流动响应于化学物质的存在，并且量子限制允许可控的光致发光特性。许多与工业过程或医疗保健相关的气体（呼吸中的化合物）或环境污染物（氮氧化物、臭氧）可以使用基于纳米线的设备来感测。量子点可用于许多应用，例如光学条形码和显示屏。然而，仍然存在许多制造和技术障碍。纽卡斯尔大学的研究表明，可以通过在水中低温反应，使用DNA作为模板，在其上形成作为纳米线的半导体，来形成纳米线。在Touchlight Genetics最近取得的进展之前，还没有大量的纯合成DNA。Touchlight和纽卡斯尔之间的合作旨在开发制造技术，以利用这些进展所带来的传感器制造的新可能性。