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，包括药品和食物，必须在不断冷藏的环境中处理，存储和运输。当前测量温度的方法不适合用于监测该冷链所需的大量和实时测量。该协作项目旨在为可以集成到射频识别（RFID）包装中的新的低成本电池温度传感系统的基础。该项目通过为智能天线传感技术提供基本知识来提高国家卫生和福利的优先事项，该知识将使下一代低成本包装能够安全运输食品和医学。这将增强全国性预防疾病的能力（例如减少食源性疾病）和治疗（例如，确保有效的疫苗接种）。这项工作还有望使新的传感系统从事商品仪和制药制造中。项目将由一个多学科团队分别在佛罗里达国际大学和德克萨斯大学达拉斯大学的电子系统和智能材料方面具有完整的专业知识。这项研究的结果将通过会议，半手和出版物广泛地传播给学术界和工业社区。该项目还支持教育努力，这些工作集中在通过课程开发，本科研究计划以及旨在影响K-12学生的社区外展工作来扩大代表性不足的群体的参与STEM。所提出的传感器系统将基于自我调制的天线，该天线响应温度的变化，经历了形状的控制和可逆变化。这种形状的变化将被利用以改变天线性能并实现连续，被动和准确的RFID温度感测。形状变化将由活动聚合物底物驱动，这些基材可以编程以进行弯曲，扭曲或折叠。这些材料将通过编程分子阶的编程，因此可以在温度响应性液晶弹性体（LCE）中合成形状变化的类型。该项目通过解决创建改变形状变化的天线所需的基本材料和电磁设计挑战，从而促进科学进步，这些挑战也可以改变其可测量的特性，这在广泛的兴趣范围内。具体而言，这项工作的目的是：1）合成新的LCE材料，这些材料可响应于-80°C和50°C之间的温度而反应地改变形状，2）设计过程到模式的电子材料，包括LCE底物上的导电天线痕迹，以及3）设计和设计和设计和表征能够反复发射的自动化型自动化的响应响应的电气，以响应他们的电动性能，以响应其电动性能，从而响应其电动性能，从而响应其电动性能，从而使电子效应，从而响应了它们的电动性能。预计研究将导致传感器的重大进展，并为包括天线阵列和频率选择性表面在内的变形电子设备提供新的示例。

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