Bioelectronics: Highly Efficient, Flexible Wireless‐Powered Circuit Printed on a Moist, Soft Contact Lens (Adv. Mater. Technol. 5/2019)

Takamatsu, Taiki; Chen, Yunhan; Yoshimasu, Toshihiko; Nishizawa, Masatoyo; Miyake, Takeo

doi:10.1002/admt.201970026

Cited by 13 publications

(17 citation statements)

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“…Electrochemically printed wireless‐powered circuit image: Reproduced with permission. [ 131 ] Copyright 2019, John Wiley and Sons. 3D printed hydrogel on breathing lung image: Reproduced with permission.…”

Section: Nanomaterials For Implantable Devicesmentioning

confidence: 99%

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Recent Advances in Printing Technologies of Nanomaterials for Implantable Wireless Systems in Health Monitoring and Diagnosis

Herbert

Lim

Park

et al. 2021

Adv Healthcare Materials

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The development of wireless implantable sensors and integrated systems, enabled by advances in flexible and stretchable electronics technologies, is emerging to advance human health monitoring, diagnosis, and treatment. Progress in material and fabrication strategies allows for implantable electronics for unobtrusive monitoring via seamlessly interfacing with tissues and wirelessly communicating. Combining new nanomaterials and customizable printing processes offers unique possibilities for high‐performance implantable electronics. Here, this report summarizes the recent progress and advances in nanomaterials and printing technologies to develop wireless implantable sensors and electronics. Advances in materials and printing processes are reviewed with a focus on challenges in implantable applications. Demonstrations of wireless implantable electronics and advantages based on these technologies are discussed. Lastly, existing challenges and future directions of nanomaterials and printing are described.

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Section: Nanomaterials For Implantable Devicesmentioning

confidence: 99%

“…Examples include using iron oxide nanoparticles to enhance a bioresorbable power transfer system and using printing techniques to create wireless electronics integrated with contact lenses and vascular stents. [ 18,22,131 ]…”

Section: Wireless Implantable Devices Using Printing Technologiesmentioning

confidence: 99%

Recent Advances in Printing Technologies of Nanomaterials for Implantable Wireless Systems in Health Monitoring and Diagnosis

Herbert

Lim

Park

et al. 2021

Adv Healthcare Materials

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“…This type of conductive, stretchable, and biocompatible electrode in the hydrogels has been utilized for culturing nerve cells 58. Recently, circuit‐printed soft contact lens were fabricated via the electrodeposition of PEDOT on soft materials 59…”

Section: Electrodeposition Of Conductive Materials In Hydrogels For Cmentioning

confidence: 99%

Biofabrication Using Electrochemical Devices and Systems

et al. 2020

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Biofabrication is roughly defined as techniques producing complex 2D and 3D tissues and organs from raw materials such as living cells, matrices, biomaterials, and molecules. It is useful for tissue engineering, regenerative medicine, drug screening, and organs‐on‐a‐chip. Biofabrication could be carried out by microfluidic techniques, optical methods, microfabrication, 3D bioprinting, etc. Meanwhile, electrochemical devices and/or systems have also been reported. In this progress report, the recent advances in applying these devices/systems for biofabrication are summarized. After introducing the concept of biofabrication, biofabrication strategies using electrochemical approaches are summarized. Then, various electrochemical systems such as probes and chip devices are described. Next, the biofabrication of hydrogels for 3D cell culture, electrochemical modification on cell culture surfaces, electrodeposition of conductive materials in hydrogels for cell culture, and biofabrication of cell aggregates using dielectrophoresis is discussed. In addition, electrochemical stimulation methods such as electrotaxis are mentioned as promising techniques for biofabrication. Finally, future research directions in this field and the application prospects are highlighted.

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“…Rapid growth has ensued in research focused on conducting polymers in biomedical engineering areas such as synthetic neural networks, 5 artificial muscles, 6 and engineered tissue 7 . Recent works have also highlighted integration of conducting polymers in wearable 8 and skin‐attachable biomedical devices 9,10 . This is stimulated by the embodied properties of polymers and inorganic semiconductors within the conducting polymer such as lightweight, ease of process and mechanically flexible combined with electrically conductive for soft electronics 3,7,11 .…”

Section: Introductionmentioning

confidence: 99%

Electrochemical stability ofPEDOTfor wearableon‐skinapplication

Mokhtar

Eulate

Sethumadhavan

et al. 2021

J of Applied Polymer Sci

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Conducting polymers are promising candidates for wearable devices due to mechanical flexibility combined with electroactivity. While electrochemical measurements have been adopted as a central transduction method in many on‐skin sensors, less studied is the stability of the active materials (in particular poly3,4‐ethylenedioxythiophene, PEDOT) in such systems, particularly for “on‐skin” applications. In this study, several different variants of doped PEDOT are fabricated and characterized in terms of their (electrical, physical, and chemical) stability in biological fluid. PEDOT doped with tosylate (TOS) or polystyrenesulfonate (PSS) are selected as prototypical forms of conducting polymers. These are compared with a new variant of PEDOT co‐doped with both TOS and PSS. Artificial interstitial fluid (aISF) loaded with 1% wt/vol bovine serum albumin is adopted as the testing medium to demonstrate the stability in dermal applications (i.e., conducting polymer microneedles or coatings on microneedles). A range of techniques such as cyclic voltammetry and electrochemical impedance spectroscopy are used to qualify and quantify the stability of the doped conducting polymers. Furthermore, this study is extended by using human skin lysate in the aISF to demonstrate proof‐of‐concept for stable use of PEDOT in wearable “on‐skin” electronics.

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Bioelectronics: Highly Efficient, Flexible Wireless‐Powered Circuit Printed on a Moist, Soft Contact Lens (Adv. Mater. Technol. 5/2019)

Cited by 13 publications

References 0 publications

Recent Advances in Printing Technologies of Nanomaterials for Implantable Wireless Systems in Health Monitoring and Diagnosis

Recent Advances in Printing Technologies of Nanomaterials for Implantable Wireless Systems in Health Monitoring and Diagnosis

Biofabrication Using Electrochemical Devices and Systems

Electrochemical stability ofPEDOTfor wearableon‐skinapplication

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