Scalable fabrication of ANT-functionalised 3D CNT microstructures for light-responsive artificial cilia

用于光响应人工纤毛的 ANT 功能化 3D CNT 微结构的可扩展制造

• 批准号: 2338185
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2338185
• 关键词: Scalable; fabrication; ANT; functionalised; 3D

Artificial cilia forests, composed of carbon nanotube (CNT) pillars functionalised with Au and poly(N-isopropylacrylamide) (PNIPAM), will be designed and fabricated such that they are capable of light-responsive actuation. Hybrid systems of Au nanoparticles and PNIPAM, which is a thermoresponsive polymer, behave as light-controlled actuated nanotransducers (ANTs) by using the Au plasmonic resonances to induce localised heating. ANTs have previously been shown to have fast response times (<1s), a switchable refractive index, and are capable of generating >1nN of force. Capillary formation of CNTs and strain engineering of CNTs have previously been used to fabricate complex CNT structures with remarkable uniformity over large areas, suggesting that these techniques would be suitable for the fabrication of the cilia-like scaffold upon which the ANTs would be appended. In biology, cilia arrays are ubiquitous, with functions such as cell transport and surface cleaning (Figure 2(b)). These essential abilities inspire the fabrication of these ANT-CNT artificial cilia arrays, which have applications in areas such as biomimetic surfaces, artificial peristalsis, biosensors, and self-cleaning surfaces.

人工纤毛森林，由碳纳米管（CNT）柱功能化与Au和聚（N-异丙基丙烯酰胺）（PNIPAM），将被设计和制造，使他们能够光响应驱动。Au纳米粒子和PNIPAM（一种温敏聚合物）的混合体系通过使用Au等离子体共振诱导局部加热而表现为光控致动纳米换能器（ANT）。ANT先前已被证明具有快速响应时间（<1 s），可切换的折射率，并且能够产生> 1 nN的力。CNT的毛细管形成和CNT的应变工程先前已用于制造在大面积上具有显著均匀性的复杂CNT结构，这表明这些技术将适合于制造其上附加ANT的纤毛样支架。在生物学中，纤毛阵列普遍存在，具有细胞运输和表面清洁等功能（图2（B））。这些基本能力激发了这些ANT-CNT人工纤毛阵列的制造，其在仿生表面、人工纤毛、生物传感器和自清洁表面等领域具有应用。