Iono-Elastomer-Based Wearable Strain Sensor with Real-Time Thermomechanical Dual Response

ACS Applied Materials & Interfaces
Yunsong XieKai-Zhong Gao

Abstract

An ultrastretchable iono-elastomer with resistance sensitive to both elongation strain and temperature has been developed by hierarchical self-assembly of an end functionalized triblock copolymer in a protic ionic liquid (ethylammonium nitrate) followed by cross-linking. Small-angle X-ray scattering experiments in situ with uniaxial elongation reveal a nanoscale microstructural transition of the hierarchically self-assembled cross-linked micelles that is responsible for the material's remarkable mechanical and ionic conductivity responses. The results show that the intermicelle distance extends along the deformation direction while the micelles organize into a long-range ordered face-centered-cubic structure during the uniaxial elongation. Besides good cyclability and resistance to selected physical damage, the iono-elastomer simultaneously achieves an unprecedented combination of high stretchability (340%), highly linear resistance vs elongation strain ( R2 = 0.998), and large temperature gauge factor (Δ R/ R = 3.24%/°C@30 °C). Human subject testing demonstrates that the iono-elastomer-based wearable thermomechanical sensor is able to effectively and accurately register both body motion and skin temperature simultaneously.

References

Jan 1, 1987·European Journal of Applied Physiology and Occupational Physiology·A J Sargeant, P Dolan
Aug 1, 1996·The Journal of Orthopaedic and Sports Physical Therapy·J K LoudonK L Loudon
Jul 15, 1987·Physical Review. B, Condensed Matter·H MatsuokaN Ise
Feb 15, 1990·Physical Review. B, Condensed Matter·H MatsuokaN Ise
Apr 15, 2000·The Journal of Physiology·J González-AlonsoB Saltin
Jul 25, 2007·Sports Medicine·Daniël WendtWouter D van Marken Lichtenbelt
Jul 29, 2008·Journal of Colloid and Interface Science·Mingqi AoYan Bai
Jul 3, 2010·The American Journal of Sports Medicine·Kevin G LaudnerKeith Meister
Mar 29, 2011·Nature Nanotechnology·Takeo YamadaKenji Hata
Jul 13, 2012·Advanced Materials·Feng Xu, Yong Zhu
Aug 11, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Carlos R López-Barrón, Norman J Wagner
Feb 5, 2014·Advanced Materials·Nguyen Thanh TienJong-Jin Park
Feb 11, 2014·Nature Communications·Jonathan A FanJohn A Rogers
Jun 18, 2014·Advanced Materials·Joseph T MuthJennifer A Lewis
Dec 10, 2014·Nature Communications·Jaemin KimDae-Hyeong Kim
Jan 27, 2015·Advanced Materials·Shanshan Yao, Yong Zhu
Nov 4, 2016·Advanced Materials·Hui YangXiaodong Chen
Jan 12, 2017·Advanced Materials·Kevin TianJoost J Vlassak
Apr 12, 2017·Advanced Materials·Pingqiang CaiXiaodong Chen
Jul 7, 2017·Advanced Materials·Yaqing LiuXiaodong Chen
Aug 25, 2017·Advanced Materials·Yun-Soung KimTodd P Coleman
Sep 7, 2017·Advanced Materials·Alexander D ValentineJennifer A Lewis
Sep 25, 2017·Advanced Materials·Lianhui LiTing Zhang
Jan 31, 2018·Advanced Materials·Ying JiangXiaodong Chen
Mar 3, 2018·Advanced Materials·Weiwei Wu, Hossam Haick

❮ Previous
Next ❯

Citations

Feb 13, 2021·Advanced Materials·Burebi YimingShaoxing Qu
May 7, 2021·Advanced Materials·Zhenchuan Yu, Peiyi Wu
Jan 29, 2019·Chemical Reviews·Tyler R RayJohn A Rogers

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.