Mechanics of Miniature Surface Craters for Reversible Adhesion
可逆粘附的微型表面凹坑的力学
基本信息
- 批准号:1663551
- 负责人:
- 金额:$ 47.96万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-09-01 至 2020-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This award supports fundamental research on the mechanics of cratered surfaces. Reversible adhesives are designed to form temporary bonds, and ideally can be reusable and capable of strong bonding. Such reversible adhesives can find wide applications in vertical mounting and climbing, releasable wafer and chip handling, as well as reusable bio-integrated electronics. It is well known that reversible adhesion can be achieved through surface interactions such as van der Waals (vdW), capillary, and electrostatic forces as well as volume effects such as suction. Adhesion due to surface interactions has been well studied for gecko-inspired microfibrils with different tip shapes including the concave shape. But the contribution from suction has been widely neglected at microscale. However, manufacturing microfibrils with large aspect ratio can be expensive and time-consuming. If an array of meso-scale craters could provide combined high adhesive strength and reversibility, they may become a practical substitute for microfibrils. The results of this research will guide the design and optimization of cratered surfaces and give a definitive answer to the debate of the suction effect across a broad range of scales. It will also create a pathway for developing a new class of superior adhesives for various applications in engineering and medicine. Building upon the strong track record of previous educational and outreach activities, the PIs will continue to provide research opportunities specifically designed for undergraduate and high-school students from minority institutes through NASCENT REU and women in engineering programs (WEP) at UT Austin.The research objective of this research is to test the hypothesis that arrays of miniature craters on polymer surfaces can lead to significantly improved reversible adhesion with pressure-sensitive strengths. The premise of this research is that cratered surfaces can be tailored for various applications, by choosing proper geometric and mechanical properties, as well as the preloading program. Central to this tailoring is a fundamental multi-scale understanding of the adhesion and decohesion mechanisms. The research team plans to develop a fundamental understanding of reversible adhesion of cratered polymeric surfaces in a broad range of scales through the following three research thrusts: (i) Fabrication of surface craters with sizes ranging from centimeters to micrometers. (ii) Measurements of traction-separation relations and pull-off forces. (iii) Modeling and simulation. The project will be carried out by a synergetic team with complementary expertise in microfabrication, adhesion mechanics, modeling, and simulation.
该奖项支持陨石坑表面力学的基础研究。可逆胶粘剂旨在形成临时粘合,理想情况下可以重复使用并具有很强的粘合能力。这种可逆胶粘剂可广泛应用于垂直安装和爬升、可释放晶片和芯片处理以及可重复使用的生物集成电子设备。众所周知,可逆粘着可以通过表面相互作用(如范德华(VDW)、毛细管、静电力以及体积效应(如吸力))实现。对于具有不同尖端形状(包括凹面形状)的壁虎启发的微纤维,由于表面相互作用而产生的粘附性已经得到了很好的研究。但在微观尺度上,吸力的贡献被广泛忽视。然而,制造大纵横比的微细纤维可能既昂贵又耗时。如果一系列中尺度陨石坑能够提供高粘合强度和可逆性,它们可能成为微纤维的实用替代品。这项研究的结果将指导凹坑表面的设计和优化,并对大范围内吸力效应的争论给出明确的答案。它还将为开发用于工程和医学的各种应用的新型优质粘合剂开辟一条道路。在以往教育和推广活动的良好记录基础上,PI将继续通过新生的REU和得克萨斯大学奥斯汀大学的女性工程项目(WEP),继续为来自少数族裔学院的本科生和高中生提供专门设计的研究机会。本研究的研究目标是检验这样一种假设,即聚合物表面的微型凹坑阵列可以显著改善具有压敏强度的可逆附着力。这项研究的前提是,通过选择合适的几何和力学特性,以及预加载程序,可以根据不同的应用定制凹坑表面。这种调整的核心是对粘合和解粘机制的基本多尺度理解。该研究小组计划通过以下三项研究努力,在广泛的尺度范围内对有凹坑的聚合物表面的可逆附着力有一个基本的了解:(I)制造尺寸从厘米到微米的表面凹坑。(Ii)牵引力-分离关系和牵引力的测量。(3)建模与仿真。该项目将由一个在微制造、粘合力学、建模和模拟方面具有互补专业知识的协同团队实施。
项目成果
期刊论文数量(7)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Local and non-local modeling aspects of three-dimensional cracks growth initiation
三维裂纹扩展的局部和非局部建模
- DOI:10.1007/s10704-020-00424-8
- 发表时间:2020
- 期刊:
- 影响因子:2.5
- 作者:Rodin, Gregory J.
- 通讯作者:Rodin, Gregory J.
Suction effects of crater arrays
火山口阵列的吸力效应
- DOI:10.1016/j.eml.2019.100496
- 发表时间:2019
- 期刊:
- 影响因子:4.7
- 作者:Wang, Liu;Ha, Kyoung-Ho;Qiao, Shutao;Lu, Nanshu
- 通讯作者:Lu, Nanshu
Suction effects in cratered surfaces
凹坑表面的吸力效应
- DOI:10.1098/rsif.2017.0377
- 发表时间:2017
- 期刊:
- 影响因子:3.9
- 作者:Qiao, Shutao;Wang, Liu;Jeong, Hyoyoung;Rodin, Gregory J.;Lu, Nanshu
- 通讯作者:Lu, Nanshu
Effects of surface tension on the suction forces generated by miniature craters
表面张力对微型陨石坑产生的吸力的影响
- DOI:10.1016/j.eml.2017.07.004
- 发表时间:2017
- 期刊:
- 影响因子:4.7
- 作者:Wang, Liu;Qiao, Shutao;Lu, Nanshu
- 通讯作者:Lu, Nanshu
Mechanics of Crater-Enabled Soft Dry Adhesives: A Review
- DOI:10.3389/fmech.2020.601510
- 发表时间:2020-12
- 期刊:
- 影响因子:0
- 作者:Liu Wang;Kyoungjin Ha;G. Rodin;K. Liechti;N. Lu
- 通讯作者:Liu Wang;Kyoungjin Ha;G. Rodin;K. Liechti;N. Lu
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Nanshu Lu其他文献
Brain implantation of soft bioelectronics via embryonic development
通过胚胎发育进行软生物电子学的大脑植入
- DOI:
10.1038/s41586-025-09106-8 - 发表时间:
2025-06-11 - 期刊:
- 影响因子:48.500
- 作者:
Hao Sheng;Ren Liu;Qiang Li;Zuwan Lin;Yichun He;Thomas S. Blum;Hao Zhao;Xin Tang;Wenbo Wang;Lishuai Jin;Zheliang Wang;Emma Hsiao;Paul Le Floch;Hao Shen;Ariel J. Lee;Rachael Alice Jonas-Closs;James Briggs;Siyi Liu;Daniel Solomon;Xiao Wang;Jessica L. Whited;Nanshu Lu;Jia Liu - 通讯作者:
Jia Liu
Electromechanics of stretchable hybrid response pressure sensors based on porous nanocomposites
基于多孔纳米复合材料的可拉伸混合响应压力传感器的机电学
- DOI:
10.1016/j.jmps.2024.105872 - 发表时间:
2024-12-01 - 期刊:
- 影响因子:6.000
- 作者:
Zheliang Wang;Zhengjie Li;Sungmin Sun;Sangjun Kim;Xianke Feng;Hongyang Shi;Nanshu Lu - 通讯作者:
Nanshu Lu
Non-invasive Cardiac Output Monitoring in Congenital Heart Disease
先天性心脏病的无创心输出量监测
- DOI:
10.1007/s40746-023-00274-1 - 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
A. Tandon;Sarnab Bhattacharya;Ayse Morca;Omer T Inan;Daniel S Munther;Shawn D. Ryan;Samir Q Latifi;Nanshu Lu;J. Lasa;Bradley S Marino;O. Baloglu - 通讯作者:
O. Baloglu
A 1V 0.25uW inverter-stacking amplifier with 1.07 noise efficiency factor
噪声效率系数为 1.07 的 1V 0.25uW 逆变器堆叠放大器
- DOI:
- 发表时间:
2017 - 期刊:
- 影响因子:0
- 作者:
Linxiao Shen;Nanshu Lu;Nan Sun - 通讯作者:
Nan Sun
Combining VR with electroencephalography as a frontier of brain-computer interfaces
VR与脑电图相结合作为脑机接口的前沿
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:0
- 作者:
Hongbian Li;Hyonyoung Shin;Luis Sentis;Ka;José del R. Millán;Nanshu Lu - 通讯作者:
Nanshu Lu
Nanshu Lu的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Nanshu Lu', 18)}}的其他基金
ASCENT: Multimodal chest e-tattoo with customized IC and deep learning algorithm for tracking and predicting progressive pneumonia
ASCENT:多模式胸部电子纹身,具有定制 IC 和深度学习算法,用于跟踪和预测进行性肺炎
- 批准号:
2133106 - 财政年份:2021
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
Stretchable Planar Antenna Modulated by Integrated Circuit (SPAMIC) for the Near Field Communication (NFC) of Epidermal Electrophysiological Sensors (EEPS)
用于表皮电生理传感器 (EEPS) 近场通信 (NFC) 的集成电路 (SPAMIC) 调制可拉伸平面天线
- 批准号:
1509767 - 财政年份:2015
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
EAGER: Two-Dimensional Material-Based Epidermal Active Sensors for Brain Monitoring.
EAGER:用于大脑监测的基于二维材料的表皮主动传感器。
- 批准号:
1541684 - 财政年份:2015
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
CAREER: Flexoelectricity of Nanomaterials on Deformable Substrates
职业:可变形基底上纳米材料的柔性电
- 批准号:
1351875 - 财政年份:2014
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
Adhesion Mechanics of Bio-Electronics Interface
生物电子界面的粘附力学
- 批准号:
1301335 - 财政年份:2013
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
相似海外基金
Collaborative Research: Robust and miniature laser with tailorable single-mode operation range
合作研究:具有可定制单模工作范围的坚固微型激光器
- 批准号:
2411394 - 财政年份:2024
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
SBIR Phase I: Electrostatic Design for Cold-Cathode, Miniature X-ray Sources
SBIR 第一阶段:冷阴极微型 X 射线源的静电设计
- 批准号:
2322146 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
Collaborative Research: Robust and miniature laser with tailorable single-mode operation range
合作研究:具有可定制单模工作范围的坚固微型激光器
- 批准号:
2240448 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
ZeptoTrack - Miniature Optical Tracking System for Robotic Surgery and Surgical Navigation
ZeptoTrack - 用于机器人手术和手术导航的微型光学跟踪系统
- 批准号:
10061083 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Collaborative R&D
Miniature and integrable balun for light-weight and flexible MRI RF coils
用于轻型、灵活 MRI 射频线圈的微型、可集成巴伦
- 批准号:
10640644 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Development of All-solid State Miniature uvLED Plasma Thrusters using Photo-chamical Processes
利用光化学工艺开发全固态微型 uvLED 等离子体推进器
- 批准号:
23H01610 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Collaborative Research: Robust and miniature laser with tailorable single-mode operation range
合作研究:具有可定制单模工作范围的坚固微型激光器
- 批准号:
2240449 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Standard Grant
An experimental study of functional significance of miniature eye movements
微型眼球运动功能意义的实验研究
- 批准号:
23K03003 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of a Near-Market-Ready Miniature Raman Probe
开发接近上市的微型拉曼探针
- 批准号:
ST/Y509863/1 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Research Grant
MIniature Sensing and Timing with QUantum Enhancement - MISTIQUE
具有量子增强功能的微型传感和计时 - MISTIQUE
- 批准号:
EP/X025500/1 - 财政年份:2023
- 资助金额:
$ 47.96万 - 项目类别:
Research Grant