Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2012        Go!    
 
 
May 28, Sunday 2017 8:21 AM       

       HEADLINES: Slaughter ban: Youth organisations come out in strong protest                                              ATM robbery: Police got fingerprints, hints involvement of professionals                                              Slaughter ban: Pinarayi to send letter to PM Modi                                              RSS agenda of entering even kitchen shall not be encouraged: K Muraleedharan                                              Freedom subject to control: Vellapally supports slaughter ban                                              Despite being denied permission, Rahul leaves for Saharanpur                                              Brother hints Rajni’s political entry by July                                              Mishra lodges fresh allegations against Kejriwal                                              Tharoor files defamation suit against Arnab                                              Pak reopens Chaman Border crossing after 22 days                                              Chennai surfers dominate Day Two of 'Indian Open of Surfing'                                              Indian umpire Nitin Menon to officiate in English county                                              Kaumudi Facebook
       SCI&TECH Next Article: 'Human-made objects on Earth amount to 30 trillion tonnes'  
       Bacteria-powered battery built on single sheet of paper
 
         Posted on :18:35:21 Dec 22, 2016
   
A A
       Last edited on:18:35:21 Dec 22, 2016
         Tags: Bacteria-powered, single sheet of paper
 
NEW YORK: Scientists have developed a bacteria-powered battery on a single sheet of paper that can power disposable electronics such as diagnostic sensors.
 
The manufacturing technique reduces fabrication time and cost, and the design could revolutionise the use of bio-batteries as a power source in remote, dangerous and resource-limited areas, researchers said.
 
"Papertronics have recently emerged as a simple and low-cost way to power disposable point-of-care diagnostic sensors," said Seokheun Choi, Assistant Professor at Binghamton University in the US.
 
"Stand-alone and self-sustained, paper-based, point-of-care devices are essential to providing effective and life-saving treatments in resource-limited settings," said Choi.
 
On one half of a piece of chromatography paper, Choi and PhD candidate Yang Gao, placed a ribbon of silver nitrate underneath a thin layer of wax to create a cathode.
 
They then made a reservoir out of a conductive polymer on the other half of the paper, which acted as the anode.
 
Once properly folded and a few drops of bacteria-filled liquid are added, the microbes' cellular respiration powers the battery.
 
"The device requires layers to include components, such as the anode, cathode and PEM (proton exchange membrane)," said Choi.
 
"(The final battery) demands manual assembly, and there are potential issues such as misalignment of paper layers and vertical discontinuity between layers, which ultimately decrease power generation," Choi said.
 
Different folding and stacking methods can significantly improve power and current outputs. Scientists were able to generate 31.51 microwatts at 125.53 microamps with six batteries in three parallel series and 44.85 microwatts at 105.89 microamps in a 6x6 configuration.
 
It would take millions of paper batteries to power a common 40-watt light bulb, but on the battlefield or in a disaster situation, usability and portability is paramount.
 
There is enough power to run biosensors that monitor glucose levels in diabetes patients, detect pathogens in a body or perform other life-saving functions.
 
"Among many flexible and integrative paper-based batteries with a large upside, paper-based microbial fuel cell technology is arguably the most underdeveloped," said Choi.
 
"We are excited about this because microorganisms can harvest electrical power from any type of biodegradable source, like wastewater, that is readily available. I believe this type of paper biobattery can be a future power source for papertronics," Choi added.
 
The research was published in the journal Advanced Materials Technologies.
A A
       SCI&TECH
Next Article: 'Human-made objects on Earth amount to 30 trillion tonnes'
 
 
SCI&TECH HEADLINES
Ransomware threat: Centre activates mechanism to prevent ‘Wannacry’ cyber attack  
2 lakh hit by 'unprecedented' cyberhack in 150 nations:Europol  
foodpanda revamps mobile app; provides more options  
ixigo launches trains app for Apple iOS users  
Virtual humans may help doctors learn empathy: study  
Gamers, here are five games to watch out for  
Yahoo India homepage gets brand new look  
Spacecraft flies between Saturn and rings in historic 1st  
Google targets 'fake news,' offensive search suggestions  
Offensive WhatsApp posts can land group admin in jail  
Facebook for 'everyone' and not just high end: Zuckerberg  
Google Earth re-invented for new era  
NASA images show how India looks from space at night  
Signs of life detected below world's deepest point  
'iPhones assembly in Bengaluru by Apple in less than a month'  
Five astronauts assigned to future ISS mission: NASA  
Trump plans to send humans to Mars  
First patient cured of rare blood disorder'  
Indian-American teen wins top science award worth USD 250,000  
'New extension may improve inflight WiFi'  
Frogs can see colour in extreme darkness: study  
NASA may put astronauts on deep space test flight  
Juno to remain in current orbit around Jupiter: NASA  
US man receives new face from donor  
Over 100 new potential planets spotted  
 
Do you agree with Centre's ban on cattle slaughter across India?
Yes
 
No
 
No Opinion
 
 
 
Home Kerala India World Business Sports Sci&Tech Education Automobile CityNews Movies Environment Letters 
© Copyright keralakaumudi Online 2011  |  Reproduction in whole or in part without written permission is prohibited.
Head Office Address: Kaumudi Buildings, Pettah P.O, Trivandrum - 695024, India.
Online queries talk to Deepu Sasidharan, + 91 98472 38959 or Email deepu[at]kaumudi.com
Customer Service -Advertisement Disclaimer Statement   |  Copyright Policy