scholarly journals Ethanol Biofuel Cells: Hybrid Catalytic Cascades as a Tool for Biosensor Devices

Biosensors ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 41
Author(s):  
Jefferson Honorio Franco ◽  
Shelley D. Minteer ◽  
Adalgisa R. De Andrade
Keyword(s):  
Alternative Energy ◽  
High Performance ◽  
Electronic Conductivity ◽  
Analytical Techniques ◽  
Electrical Energy ◽  
Biofuel Cells ◽  
Enzymatic Biofuel Cells ◽  
External Power Source ◽  
Potential Applications ◽  
Self Powered

Biofuel cells use chemical reactions and biological catalysts (enzymes or microorganisms) to produce electrical energy, providing clean and renewable energy. Enzymatic biofuel cells (EBFCs) have promising characteristics and potential applications as an alternative energy source for low-power electronic devices. Over the last decade, researchers have focused on enhancing the electrocatalytic activity of biosystems and on increasing energy generation and electronic conductivity. Self-powered biosensors can use EBFCs while eliminating the need for an external power source. This review details improvements in EBFC and catalyst arrangements that will help to achieve complete substrate oxidation and to increase the number of collected electrons. It also describes how analytical techniques can be employed to follow the intermediates between the enzymes within the enzymatic cascade. We aim to demonstrate how a high-performance self-powered sensor design based on EBFCs developed for ethanol detection can be adapted and implemented in power devices for biosensing applications.

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.

Integration of a Capacitor to 3-D DNA Walker and Biofuel Cell-Based Self-Powered System for Ultrasensitive Bioassays of MicroRNA

Nanoscale ◽  
2021 ◽  
Author(s):  
Fu-Ting Wang ◽  
Ke-Jing Huang ◽  
Yangyang Hou ◽  
Xuecai Tan ◽  
Xu Wu ◽  
...  
Keyword(s):  
Signal Amplification ◽  
Three Dimensional ◽  
Biofuel Cells ◽  
Biofuel Cell ◽  
Dna Walker ◽  
Enzymatic Biofuel Cells ◽  
Self Powered

A self-powered microRNAs biosensor with triple signal amplification systems is assembled through integration of three-dimensional DNA walker, enzymatic biofuel cells and capacitor. The DNA walker is designed from an enzyme-free...

High-performance non-enzymatic biofuel cells based on an organic copper complex cathode and a nanoporous gold nanoparticle anode

2019 ◽  
Vol 55 (13) ◽  
pp. 1887-1890 ◽  
Author(s):  
Shifan Zhao ◽  
Panpan Gai ◽  
Wen Yu ◽  
Haiyin Li ◽  
Feng Li
Keyword(s):  
Gold Nanoparticle ◽  
Copper Complex ◽  
High Performance ◽  
Biofuel Cells ◽  
Nanoporous Gold ◽  
Neutral Medium ◽  
Enzymatic Biofuel Cells ◽  
Organic Copper

We developed non-enzymatic biofuel cells based on organic copper complex and nanoporous gold nanoparticle electrocatalysts in a neutral medium.

scholarly journals Self-Powered Biosensor for Specifically Detecting Creatinine in Real Time Based on the Piezo-Enzymatic-Reaction Effect of Enzyme-Modified ZnO Nanowires

Biosensors ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 342
Author(s):  
Meng Wang ◽  
Guangting Zi ◽  
Jiajun Liu ◽  
Yutong Song ◽  
Xishan Zhao ◽  
...  
Keyword(s):  
Real Time ◽  
Coupling Effect ◽  
Enzymatic Reaction ◽  
Electrical Energy ◽  
Zno Nanowires ◽  
Creatinine Concentration ◽  
Important Indicator ◽  
External Power Source ◽  
External Power ◽  
Self Powered

Creatinine has become an important indicator for the early detection of uremia. However, due to the disadvantages of external power supply and large volume, some commercial devices for detecting creatinine concentration have lost a lot of popularity in everyday life. This paper describes the development of a self-powered biosensor for detecting creatinine in sweat. The biosensor can detect human creatinine levels in real time without the need for an external power source, providing information about the body’s overall health. The piezoelectric output voltage of creatininase/creatinase/sarcosine oxidase-modified ZnO nanowires (NWs) is significantly dependent on the creatinine concentration due to the coupling effect of the piezoelectric effect and enzymatic reaction (piezo-enzymatic-reaction effect), which can be regarded as both electrical energy and biosensing signal. Our results can be used for the detection of creatinine levels in the human body and have great potential in the prediction of related diseases.

A self-powered damage detection sensor

2003 ◽  
Vol 38 (2) ◽  
pp. 115-124 ◽  
Author(s):  
N Elvin ◽  
A Elvin ◽  
D. H Choi
Keyword(s):  
Strain Sensor ◽  
Electrical Energy ◽  
Power Source ◽  
Central Processor ◽  
Renewable Power ◽  
External Power Source ◽  
Environmentally Safe ◽  
Potential Benefits ◽  
External Power ◽  
Self Powered

All existing methods of embedded damage-detecting sensors require an external power source and a means of transmitting the data to a central processor. This paper presents a novel self-powered strain sensor capable of transmitting data wirelessly to a remote receiver. This paper illustrates the performance of the sensor through the theoretical and experimental analysis of a simple damaged beam. The results show that a sensor powered through the conversion of mechanical to electrical energy is viable for detecting damage. The potential benefits of this sensor include ease of implementation during manufacture of the structure, and the use of an environmentally safe and renewable power source.

STEM measurement of Ge concentration profiles in Si/GeSi/Si heterostructures with 3 Å resolution

1995 ◽  
Vol 53 ◽  
pp. 442-443
Author(s):  
Tan-Chen Lee ◽  
N. David Theodore ◽  
John Silcox
Keyword(s):  
High Performance ◽  
Secondary Ion Mass Spectrometry ◽  
Rutherford Backscattering Spectrometry ◽  
Analytical Techniques ◽  
Heterojunction Bipolar Transistor ◽  
Concentration Profiles ◽  
Auger Analysis ◽  
Potential Applications ◽  
Secondary Ion ◽  
Gesi Layer

GeSi alloys are of great interest because of potential applications to high-performance semiconductor devices. For example, the fastest heterojunction bipolar transistor (in Si-based materials) in 1990 was fabricated by using a strained GeSi layer. To accomplish this, it is necessary to keep the Ge concentration and the thickness of the GeSi films below a “critical thickness” to avoid relaxation of the GeSi alloys. It is therefore important to control the Ge concentration and the thickness of GeSi films. When the thickness of the GeSi film is under 10 nm, common characterization techniques such as RBS (Rutherford Backscattering Spectrometry), Auger analysis and SIMS (Secondary Ion Mass Spectrometry) reach resolution limits. The accurate measurement of Ge profiles in GeSi thin films becomes a difficult but important issue. In this paper, we measure Ge concentration profiles by different analytical techniques obtained from STEM and compare them with results from SIMS and Auger analysis.

scholarly journals Enzymatic Biofuel Cells for Self-Powered, Controlled Drug Release

2020 ◽  
Vol 142 (26) ◽  
pp. 11602-11609 ◽  
Author(s):  
Xinxin Xiao ◽  
Kieran Denis McGourty ◽  
Edmond Magner
Keyword(s):  
Drug Release ◽  
Controlled Drug Release ◽  
Biofuel Cells ◽  
Enzymatic Biofuel Cells ◽  
Self Powered
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