Collaborative Research: Passive RFID Real-Time Temperature-Sensing Based on Programmable Liquid Crystal Elastomers

合作研究：基于可编程液晶弹性体的无源RFID实时温度传感

基本信息

批准号：
1711467
负责人：
Stavros Georgakopoulos
金额：
$ 21.04万
依托单位：
Florida International University
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：
2017-07-01 至 2020-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1711467&HistoricalAwards=false
关键词：
Collaborative Research Passive RFID Real

项目摘要

Many products critical to modern society, including pharmaceuticals and food, must be processed, stored, and shipped in a constantly refrigerated environment. Current methods to measure temperature are poorly suited for the high-volume and real-time measurements that are needed to monitor this cold chain. This collaborative project aims to provide the basis for new low-cost battery-free temperature sensing systems that can be integrated into radio-frequency identification (RFID) packaging. This project advances national health and welfare priorities by providing the fundamental knowledge for a smart antenna sensing technology that will enable next-generation low-cost packaging for safe transportation of food and medicine. This will enhance national capabilities for disease prevention (e.g., reducing foodborne illness) and treatment (e.g., ensuring effective vaccinations). This work is also expected to enable new sensing systems in agriculture and pharmaceutical manufacturing. This project will be carried out by a multidisciplinary team with complementary expertise in electromagnetic systems and smart materials at the Florida International University and the University of Texas at Dallas, respectively. The results of this research will be broadly disseminated to both the academic community and industrial community through conferences, seminars, and publications. This project also supports educational efforts that are focused on broadening participation of underrepresented groups in STEM through curriculum development, undergraduate research programs, and community outreach efforts designed to impact K-12 students. The proposed sensing systems will be based on self-reconfiguring antennas that, in response to a change in temperature, undergo controllable and reversible changes in shape. This change in shape will be harnessed to alter antenna performance and enable continuous, passive, and accurate RFID temperature sensing. Shape change will be driven by active polymeric substrates that can be programmed to undergo bending, twisting, or folding. These materials will be synthesized by programming the molecular order, and therefore the type of shape change, in temperature-responsive liquid crystal elastomers (LCEs). This project promotes scientific advancement by addressing the fundamental materials and electromagnetic design challenges necessary to create shape-changing antennas that also change their measurable properties over the broad temperature range of interest. Specifically, this work aims to: 1) synthesize new LCE materials that reversibly change shape in response to temperatures between -80°C and 50°C, 2) design processes to pattern electronic materials including conductive antenna traces on LCE substrates, and 3) design and characterize reversibly self-morphing LCE antennas that can dynamically reconfigure their electromagnetic performance in response to temperature change. This research is expected to lead to significant advances in sensors and enable new examples of morphing electronics including antenna arrays and frequency selective surfaces.

许多对现代社会至关重要的产品，包括药品和食品，必须在持续冷藏的环境中进行加工、储存和运输，当前测量温度的方法不太适合监控这种情况所需的大批量和实时测量。该合作项目旨在为可集成到射频识别 (RFID) 包装中的新型低成本无电池温度传感系统提供基础。该项目通过提供基础知识来推进国家健康和福利优先事项。智能天线传感技术将使下一代用于安全运输食品和药品的低成本包装。这将增强国家疾病预防（例如减少食源性疾病）和治疗（例如确保有效疫苗接种）的能力。该项目将由佛罗里达国际大学和德克萨斯大学达拉斯分校的多学科团队在电磁系统和智能材料方面具有互补的专业知识进行。这项研究的结果将广泛传播给学术界。社区和工业该项目还支持教育工作，重点是通过课程开发、本科生研究项目和旨在影响 K-12 学生的社区外展活动，扩大代表性不足的群体的参与。将基于自重构天线，该天线会响应温度变化而发生可控且可逆的形状变化，这种形状变化将用于改变天线性能并实现连续、无源和准确的 RFID 温度感测。形状变化将由活性聚合物基材驱动，这些基材可通过编程进行弯曲、扭曲或折叠，这些材料将通过对温度响应液晶弹性体（LCE）中的分子顺序以及形状变化的类型进行编程来合成。该项目通过解决创建变形天线所需的基本材料和电磁设计挑战来促进科学进步，具体来说，这项工作的目标是在广泛的温度范围内改变其可测量特性。目的：1) 合成新的 LCE 材料，该材料可根据 -80°C 至 50°C 之间的温度可逆地改变形状，2) 设计电子材料图案的设计流程，包括 LCE 基板上的导电天线迹线，以及 3) 可逆地设计和表征自身- 能够根据温度变化动态重新配置其电磁性能的变形 LCE 天线，这项研究预计将导致传感器的重大进步，并实现包括天线阵列和频率在内的变形电子器件的新示例。选择性表面。

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）

A Patch Antenna with Liquid Crystal Elastomer Switching for Passive RFID Temperature Sensing

DOI：
10.1109/apusncursinrsm.2019.8888801
发表时间：
2019-07
期刊：
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting
影响因子：
0
作者：
Yousuf Shafiq;S. Georgakopoulos;Hyun Kim;Cedric P. Ambulo;T. Ware
通讯作者：
Yousuf Shafiq;S. Georgakopoulos;Hyun Kim;Cedric P. Ambulo;T. Ware

A Battery-Free Temperature Sensor With Liquid Crystal Elastomer Switching Between RFID Chips

采用液晶弹性体在 RFID 芯片之间切换的无电池温度传感器

DOI：
10.1109/access.2020.2993034
发表时间：
2020
期刊：
IEEE Access
影响因子：
3.9
作者：
Shafiq, Yousuf;Henricks, Julia;Ambulo, Cedric P.;Ware, Taylor H.;Georgakopoulos, Stavros V.
通讯作者：
Georgakopoulos, Stavros V.

Responsive, 3D Electronics Enabled by Liquid Crystal Elastomer Substrates