Advertisement

Topics

Mechanochromic stretchable electronics.

08:00 EDT 9th August 2018 | BioPortfolio

Summary of "Mechanochromic stretchable electronics."

Soft and stretchable electronics are promising for a variety of applications such as wearable electronics, human-machine interfaces, and soft robotics. These devices, which are often encased in elastomeric materials, maintain or adjust their functionality during deformation, but can fail catastrophically if extended too far. Here, we report new functional composites in which stretchable electronic properties are coupled to molecular mechanochromic function, enabling at-a-glace visual cues that inform user control. These properties are realized by covalently incorporating a spiropyran mechanophore within poly(dimethylsiloxane) to indicate with a visible color change that a strain threshold has been reached. The resulting colorimetric elastomers can be molded and patterned so that, for example, the word "stop" appears when a critical strain is reached, indicating to the user that further strain risks device failure. We also show that the strain at color onset can be controlled by layering silicones with different moduli into a composite. As a demonstration, we show how color onset can be tailored to indicate a when a specified frequency of a stretchable liquid metal antenna has been reached. The multi-scale combination of mechanochromism and soft electronics offers a new avenue to empower user control of strain dependent properties for future stretchable devices.

Affiliation

Journal Details

This article was published in the following journal.

Name: ACS applied materials & interfaces
ISSN: 1944-8252
Pages:

Links

DeepDyve research library

PubMed Articles [300 Associated PubMed Articles listed on BioPortfolio]

Ionic Gels and Their Applications in Stretchable Electronics.

Ionic gels represent a novel class of stretchable materials where ionic conducting liquid is immobilized in a polymer matrix. This review focuses on the design of ionic gel materials and device fabric...

Skin electronics from scalable fabrication of an intrinsically stretchable transistor array.

Skin-like electronics that can adhere seamlessly to human skin or within the body are highly desirable for applications such as health monitoring, medical treatment, medical implants and biological st...

Mechanochromic Polymers that Turn Green upon the Dissociation of Diarylbibenzothiophenonyl: The Missing Piece toward Rainbow Mechanochromism.

Mechanochromic polymers, i.e., polymers sensitive to mechanical impact, promise great potential for applications in damage sensors. In particular, radical-type mechanochromic polymers, which produce c...

A Stretchable Alternating Current Electroluminescent Fiber.

Flexible, stretchable electroluminescent fibers are of significance to meet the escalating requirements of increasing complexity and multifunctionality of smart electronics. We report a stretchable al...

Soft, stretchable, epidermal sensor with integrated electronics and photochemistry for measuring personal UV exposures.

Excessive ultraviolet (UV) radiation induces acute and chronic effects on the skin, eye and immune system. Personalized monitoring of UV radiation is thus paramount to measure the extent of personal s...

Clinical Trials [21 Associated Clinical Trials listed on BioPortfolio]

Biomedical Shirt-based ECG Monitoring

Cardiovascular diseases (CVD) are associated with high healthcare costs, as well as are a leading cause of mortality and hospitalizations. The main challenge for today's researchers is to ...

Clinical Use of a Neonatal MRI System

The purpose of the present study is to continue clinical scanning on the NICU MRI with improved administrative processes and procedures, thereby making medically indicated, state of the ar...

Monitored Breathing Awareness Therapy for Insomnia Disorder in Older Adults: Phase 1

Insomnia can be a chronic problem that leads to significant daytime fatigue, stress and numerous negative health consequences including depression. Advanced Medical Electronics, in partner...

Pilot Study: Safety of a Customized MRI System for Neonatal Imaging

The purpose of this study is to determine the safety of a customized MRI scanner and gather preliminary data on image quality in a group of 10 medically stable infants admitted to the Neon...

Monitored Breathing Awareness Therapy for Insomnia Disorder in Older Adults-2

Insomnia can be a chronic problem that leads to significant daytime fatigue, stress and numerous negative health consequences including depression. Advanced Medical Electronics, in partner...

Medical and Biotech [MESH] Definitions

The study, control, and application of the conduction of ELECTRICITY through gases or vacuum, or through semiconducting or conducting materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Portable electronics device for storing and playing audio and or media files. MP3 for MPEG-1 audio layer 3, is a digital coding format.

Coagulated exudate isolated from several species of the tropical tree Palaquium (Sapotaceae). It is the trans-isomer of natural rubber and is used as a filling and impression material in dentistry and orthopedics and as an insulator in electronics. It has also been used as a rubber substitute.

The research and development of ELECTRICAL EQUIPMENT AND SUPPLIES for such medical applications as diagnosis, therapy, research, anesthesia control, cardiac control, and surgery. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Ultrasonography of internal organs using an ultrasound transducer sometimes mounted on a fiberoptic endoscope. In endosonography the transducer converts electronic signals into acoustic pulses or continuous waves and acts also as a receiver to detect reflected pulses from within the organ. An audiovisual-electronic interface converts the detected or processed echo signals, which pass through the electronics of the instrument, into a form that the technologist can evaluate. The procedure should not be confused with ENDOSCOPY which employs a special instrument called an endoscope. The "endo-" of endosonography refers to the examination of tissue within hollow organs, with reference to the usual ultrasonography procedure which is performed externally or transcutaneously.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article