Highly efficient self-healable and dual responsive hydrogel-based deformable triboelectric nanogenerators for wearable electronics

2019 ◽  
Vol 7 (23) ◽  
pp. 13948-13955 ◽  
Author(s):  
Qingbao Guan ◽  
Guanghui Lin ◽  
Yuzhu Gong ◽  
Jingfeng Wang ◽  
Weiyi Tan ◽  
...  
Keyword(s):  
Near Infrared ◽  
Triboelectric Nanogenerator ◽  
Self Healing ◽  
Wearable Electronics ◽  
Highly Efficient ◽  
Dual Responsive ◽  
Nir Light ◽  
Triboelectric Nanogenerators

A soft hydrogel based self-healing triboelectric nanogenerator (HS-TENG) is highly deformable, and both mechanically and electrically self-healable upon exposure to water spraying and near-infrared (NIR) light.

scholarly journals Biomechanical energy harvest based on textiles used in self-powering clothing

2020 ◽  
Vol 15 ◽  
pp. 155892502096735
Author(s):  
Li Niu ◽  
Xuhong Miao ◽  
Gaoming Jiang ◽  
Ailan Wan ◽  
Yutian Li ◽  
...  
Keyword(s):  
Flexible Electronics ◽  
High Efficiency ◽  
Structural Features ◽  
Human Motion ◽  
Energy Harvest ◽  
Triboelectric Nanogenerator ◽  
Wearable Electronics ◽  
Practical Applications ◽  
Triboelectric Nanogenerators ◽  
New Generation

Advanced triboelectric nanogenerator techniques provide a massive opportunity for the development of new generation wearable electronics, which toward multi-function and self-powering. Textiles have been refreshed with the requirement of flexible electronics in recent decades. In particular, knitted-textiles have exhibited enormous and prominent potential possibilities for smart wearable devices, which are based on the merits of high stretchability, excellent elasticity, comfortability as well as compatibility. Combined knitted textiles with nanogenerator techniques will promote the knitted textile triboelectric nanogenerators (KNGs) emerging, endowing conventional textiles with biomechanical energy harvesting and sensing energy supplied abilities. However, the design of KNGs and the construction of KNGs are based on features of human motions symbolizing considerable challenges in both high efficiency and excellent comfort. Currently, this review is concerned with KNGs construction account of triboelectric effects referring to knitted-textile classifications, structural features, human motion energy traits, working mechanisms, and practical applications. Moreover, the remaining challenges of industrial production and the future prospects of knitted-textile triboelectric nanogenerators of harvesting biomechanical energy are presented.

A hollow porous magnetic nanocarrier for efficient near-infrared light- and pH-controlled drug release

RSC Advances ◽  
2014 ◽  
Vol 4 (92) ◽  
pp. 51055-51061 ◽  
Author(s):  
Weidong Ji ◽  
Najun Li ◽  
Dongyun Chen ◽  
Yang Jiao ◽  
Qingfeng Xu ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Near Infrared ◽  
Cell Imaging ◽  
Controlled Drug Release ◽  
Infrared Light ◽  
Cancer Drug ◽  
Dual Responsive ◽  
Nir Light ◽  
Anti Cancer ◽  
Cancer Drug Delivery

A NIR light and pH dual responsive nanocarrier was fabricated for anti-cancer drug delivery as well as MRI and fluorescence cell imaging.

scholarly journals Fully Organic Self-Powered Electronic Skin with Multifunctional and Highly Robust Sensing Capability

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Lijuan Song ◽  
Zheng Zhang ◽  
Xiaochen Xun ◽  
Liangxu Xu ◽  
Fangfang Gao ◽  
...  
Keyword(s):  
The Self ◽  
Tactile Sensation ◽  
Soft Robotics ◽  
Triboelectric Nanogenerator ◽  
Self Healing ◽  
Wearable Electronics ◽  
Arm Swing ◽  
Electronic Skin ◽  
Self Powered ◽  
Robust Sensing

Electronic skin (e-skin) with skin-like flexibility and tactile sensation will promote the great advancements in the fields of wearable equipment. Thus, the multifunction and high robustness are two important requirements for sensing capability of the e-skin. Here, a fully organic self-powered e-skin (FOSE-skin) based on the triboelectric nanogenerator (TENG) is developed. FOSE-skin based on TENG can be fully self-healed within 10 hours after being sheared by employing the self-healing polymer as a triboelectric layer and ionic liquid with the temperature sensitivity as an electrode. FOSE-skin based on TENG has the multifunctional and highly robust sensing capability and can sense the pressure and temperature simultaneously. The sensing capability of the FOSE-skin based on TENG can be highly robust with no changes after self-healing. FOSE-skin based on TENG can be employed to detect the arm swing, the temperature change of flowing water, and the motion trajectory. This work provides a new idea for solving the issues of monofunctional and low robust sensing capability for FOSE-skin based on TENG, which can further promote the application of wearable electronics in soft robotics and bionic prosthetics.

scholarly journals A Highly Efficient and Durable Kirigami Triboelectric Nanogenerator for Rotational Energy Harvesting

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1120
Author(s):  
Dae Sol Kong ◽  
Jae Yeon Han ◽  
Young Joon Ko ◽  
Sang Hyeok Park ◽  
Minbaek Lee ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Sliding Mode ◽  
Short Circuit ◽  
Three Dimensional ◽  
Short Circuit Current ◽  
Rotational Energy ◽  
Open Circuit ◽  
Triboelectric Nanogenerator ◽  
Highly Efficient ◽  
Triboelectric Nanogenerators

While sliding-mode triboelectric nanogenerators (S-TENGs) have been considered as one of the most promising devices for rotational energy harvesting, their inherently poor durability has been a serious bottleneck for applications. Herein, we report a three-dimensional kirigami TENG as a highly efficient and durable rotational energy harvesting device. The kirigami TENG consisted of cube-shaped paper, aluminum (Al) foil electrode and polytetrafluoroethylene (PTFE) polymer film, and converted rotational motion into multiple folding-unfolding vibrations. The rotation-folding (R-F) kirigami TENG generated an open-circuit voltage of 31 V, a short-circuit current of 0.67 μA and an instantaneous power (power density) of 1.2 μW (0.13 μW/cm2) at 200 rpm, which was sufficient to turn on 25 light-emitting diodes and a thermo-hygrometer. The triboelectric outputs of the R-F kirigami TENG were only slightly decreased even after 288,000 continuous rotations, i.e., the output remained at 86% of its initial value. This work demonstrates that an R-F kirigami TENG could be a plausible candidate to efficiently harvest various forms of rotational energy with a long-term durability.

Near-Infrared Light Enhanced Peroxidase-Like Activity of PEGylated Palladium Nanozyme for Highly Efficient Biofilm Eradication

2021 ◽  
Vol 17 (6) ◽  
pp. 1131-1147
Author(s):  
Sijin Xiang ◽  
Zhongxiong Fan ◽  
Duo Sun ◽  
Tianbao Zhu ◽  
Jiang Ming ◽  
...  
Keyword(s):  
Infection Control ◽  
Near Infrared ◽  
Antimicrobial Agents ◽  
Infrared Light ◽  
Photothermal Effect ◽  
Highly Efficient ◽  
Nir Light ◽  
Biofilm Infection

The overall eradication of biofilm-mode growing bacteria holds significant key to the answer of a series of infection-related health problems. However, the extracellular matrix of bacteria biofilms disables the traditional antimicrobials and, more unfortunately, hampers the development of the anti-infectious alternatives. Therefore, highly effective antimicrobial agents are an urgent need for biofilm-infection control. Herein, a PEGylated palladium nanozyme (Pd-PEG) with peroxidase (POD)-like activity for highly efficient biofilm infection control is reported. Pd-PEG also shows the intrinsic photothermal effect as well as near-infrared (NIR) light-enhanced POD-like activity in the acidic environment, thereby massively destroying the biofilm matrix and killing the adhering bacteria. Importantly, the antimicrobial mechanism of the synergistic treatment based on Pd-PEG+H2O2+NIR combination was disclosed. In vitro and in vivo results illustrated the designed Pd-PEG+H2O2 +NIR treatment reagent possessed outstanding antibacterial and biofilms elimination effects with negligible biotoxicity. This work hopefully facilitates the development of metal-based nanozymes in biofilm related infectious diseases.

Washable textile-structured single-electrode triboelectric nanogenerator for self-powered wearable electronics

2018 ◽  
Vol 6 (39) ◽  
pp. 19143-19150 ◽  
Author(s):  
Chuan Ning ◽  
Lan Tian ◽  
Xinya Zhao ◽  
Shengxin Xiang ◽  
Yingjie Tang ◽  
...  
Keyword(s):  
Triboelectric Nanogenerator ◽  
Wearable Electronics ◽  
Self Powered ◽  
Triboelectric Nanogenerators ◽  
Human Motions

A washable textile-structured single-electrode triboelectric nanogenerators (TS-TENG) was successful developed. A stained TS-TENG can be easily and quickly cleaned by washing in water. When sewed on clothes, it can effectively harvest biomechanical energy from human motions.

Catalyst Halogenation Enables Rapid and Efficient Polymerizations with Visible to Near-Infrared Light

2020 ◽  
Author(s):  
Alex Stafford ◽  
Dowon Ahn ◽  
Emily Raulerson ◽  
Kun-You Chung ◽  
Kaihong Sun ◽  
...  
Keyword(s):  
Near Infrared ◽  
Transient Absorption ◽  
Reaction Times ◽  
Infrared Light ◽  
Structure Property ◽  
Light Emitting ◽  
Structure Property Relationships ◽  
Nir Light ◽  
Light Intensities ◽  
Emission Quenching

Driving rapid polymerizations with visible to near-infrared (NIR) light will enable nascent technologies in the emerging fields of bio- and composite-printing. However, current photopolymerization strategies are limited by long reaction times, high light intensities, and/or large catalyst loadings. Improving efficiency remains elusive without a comprehensive, mechanistic evaluation of photocatalysis to better understand how composition relates to polymerization metrics. With this objective in mind, a series of methine- and aza-bridged boron dipyrromethene (BODIPY) derivatives were synthesized and systematically characterized to elucidate key structure-property relationships that facilitate efficient photopolymerization driven by visible to NIR light. For both BODIPY scaffolds, halogenation was shown as a general method to increase polymerization rate, quantitatively characterized using a custom real-time infrared spectroscopy setup. Furthermore, a combination of steady-state emission quenching experiments, electronic structure calculations, and ultrafast transient absorption revealed that efficient intersystem crossing to the lowest excited triplet state upon halogenation was a key mechanistic step to achieving rapid photopolymerization reactions. Unprecedented polymerization rates were achieved with extremely low light intensities (< 1 mW/cm<sup>2</sup>) and catalyst loadings (< 50 μM), exemplified by reaction completion within 60 seconds of irradiation using green, red, and NIR light-emitting diodes.

Bi19S27I3 nanorods: a new candidate for photothermal therapy in the first and second biological near-infrared windows

Nanoscale ◽  
2021 ◽  
Author(s):  
Jinsong Xiong ◽  
Qinghuan Bian ◽  
Shuijin Lei ◽  
Yatian Deng ◽  
Kehan Zhao ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Photothermal Therapy ◽  
Near Infrared ◽  
Research Interest ◽  
The Past ◽  
Nir Light ◽  
Considerable Research ◽  
Key Factor

Near-infrared (NIR) light induced photothermal cancer therapy using nanomaterials as photothermal agents has attracted considerable research interest over the past few years. As the key factor in the photothermal therapy...

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