Boosting performance of self-powered biosensing device with high-energy enzyme biofuel cells and cruciform DNA

Nano Energy ◽  
2020 ◽  
Vol 68 ◽  
pp. 104310 ◽  
Author(s):  
Fu-Ting Wang ◽  
Yi-Han Wang ◽  
Jing Xu ◽  
Ke-Jing Huang ◽  
Zhen-hua Liu ◽  
...  
Keyword(s):  
High Energy ◽  
Biofuel Cells ◽  
Self Powered ◽  
Cruciform Dna

A high-energy sandwich-type self-powered biosensor based on DNA bioconjugates and a nitrogen doped ultra-thin carbon shell

2020 ◽  
Vol 8 (7) ◽  
pp. 1389-1395 ◽  
Author(s):  
Fu-Ting Wang ◽  
Yi-Han Wang ◽  
Jing Xu ◽  
Ke-Jing Huang
Keyword(s):  
Signal Amplification ◽  
High Energy ◽  
Biofuel Cells ◽  
Ultrasensitive Detection ◽  
Nitrogen Doped ◽  
Sensing Platform ◽  
Enzymatic Biofuel Cells ◽  
Thin Carbon ◽  
Sandwich Type ◽  
Self Powered

A high-energy self-powered sensing platform for the ultrasensitive detection of proteins is developed based on enzymatic biofuel cells (EBFCs) by using DNA bioconjugate assisted signal amplification.

scholarly journals Biofuel-powered soft electronic skin with multiplexed and wireless sensing for human-machine interfaces

2020 ◽  
Vol 5 (41) ◽  
pp. eaaz7946 ◽  
Author(s):  
You Yu ◽  
Joanna Nassar ◽  
Changhao Xu ◽  
Jihong Min ◽  
Yiran Yang ◽  
...  
Keyword(s):  
Human Body ◽  
Power Efficiency ◽  
Near Field ◽  
Three Dimensional ◽  
Biofuel Cells ◽  
Physical Parameters ◽  
Power Intensity ◽  
Electronic Skin ◽  
Self Powered ◽  
Body Self

Existing electronic skin (e-skin) sensing platforms are equipped to monitor physical parameters using power from batteries or near-field communication. For e-skins to be applied in the next generation of robotics and medical devices, they must operate wirelessly and be self-powered. However, despite recent efforts to harvest energy from the human body, self-powered e-skin with the ability to perform biosensing with Bluetooth communication are limited because of the lack of a continuous energy source and limited power efficiency. Here, we report a flexible and fully perspiration-powered integrated electronic skin (PPES) for multiplexed metabolic sensing in situ. The battery-free e-skin contains multimodal sensors and highly efficient lactate biofuel cells that use a unique integration of zero- to three-dimensional nanomaterials to achieve high power intensity and long-term stability. The PPES delivered a record-breaking power density of 3.5 milliwatt·centimeter−2 for biofuel cells in untreated human body fluids (human sweat) and displayed a very stable performance during a 60-hour continuous operation. It selectively monitored key metabolic analytes (e.g., urea, NH4+, glucose, and pH) and the skin temperature during prolonged physical activities and wirelessly transmitted the data to the user interface using Bluetooth. The PPES was also able to monitor muscle contraction and work as a human-machine interface for human-prosthesis walking.

scholarly journals On‐Body Bioelectronics: Wearable Biofuel Cells for Bioenergy Harvesting and Self‐Powered Biosensing

2019 ◽  
Vol 30 (29) ◽  
pp. 1906243 ◽  
Author(s):  
Itthipon Jeerapan ◽  
Juliane R. Sempionatto ◽  
Joseph Wang
Keyword(s):  
Biofuel Cells ◽  
Self Powered

scholarly journals Printable magnesium ion quasi-solid-state asymmetric supercapacitors for flexible solar-charging integrated units

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhengnan Tian ◽  
Xiaoling Tong ◽  
Guan Sheng ◽  
Yuanlong Shao ◽  
Lianghao Yu ◽  
...  
Keyword(s):  
Solid State ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Magnesium Ion ◽  
X Ray Diffraction ◽  
Asymmetric Supercapacitors ◽  
Energy Conversion And Storage ◽  
Self Powered ◽  
Favorable Safety

Abstract Wearable and portable self-powered units have stimulated considerable attention in both the scientific and technological realms. However, their innovative development is still limited by inefficient bulky connections between functional modules, incompatible energy storage systems with poor cycling stability, and real safety concerns. Herein, we demonstrate a flexible solar-charging integrated unit based on the design of printed magnesium ion aqueous asymmetric supercapacitors. This power unit exhibits excellent mechanical robustness, high photo-charging cycling stability (98.7% capacitance retention after 100 cycles), excellent overall energy conversion and storage efficiency (ηoverall = 17.57%), and outstanding input current tolerance. In addition, the Mg ion quasi-solid-state asymmetric supercapacitors show high energy density up to 13.1 mWh cm−3 via pseudocapacitive ion storage as investigated by an operando X-ray diffraction technique. The findings pave a practical route toward the design of future self-powered systems affording favorable safety, long life, and high energy.

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