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Mobile phone powered by urine | Chemistry World

Mobile phone powered by urine | Chemistry World | nmr | Scoop.it

The first mobile phone battery to be directly charged by microbial fuel cells feeding on neat urinehas been reported by scientists in the UK.

Back in 2011 we covered the urine-powered fuels cells being developed by Ioannis Ieropoulos and colleagues at Bristol Robotics Laboratory. They had shown that urine was an excellent fuel for direct electricity generation. As a bonus, the cells can reclaim essential nutrients from the urine, making waterwater treatment easier.

This latest study is the first time a commercially available mobile phone has been powered by urine-powered fuel cells. Cascades of electrically connected fuel cells use bacterial action to convert chemical energy in organic matter in urine into electricity.

The team hope their work will lead to emergency charging devices for remote locations.

 

The original resaerch here I A Ieropoulos et al, Phys. Chem. Chem. Phys., 2013, DOI: 10.1039/c3cp52889h

 

 


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This is valorisation !

Rescooped by Manoj Kushwaha from Natural Products Chemistry Breaking News
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Interpreting Proton NMR - A visual overview

Interpreting Proton NMR - A visual overview | nmr | Scoop.it

Jon Chui is an incredibly talented person (follow some article of is blog and you'll undersatnd) Here he delivers us a very didactic bird’s eye view of 1H NMR spectra interpretation in comic form.

 

A resolution-independent PDF is available here : http://www.jkwchui.com/WP/wp-content/uploads/2011/12/InterpretingNMR_r4_overview1.pdf


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Hydrolysis Reactions of the Taccalonolides Reveal Structure–Activity Relationships

Hydrolysis Reactions of the Taccalonolides Reveal Structure–Activity Relationships | nmr | Scoop.it

The taccalonolides are microtubule stabilizers isolated from plants of the genus Tacca that show potent in vivo antitumor activity and the ability to overcome multiple mechanisms of drug resistance. The most potent taccalonolide identified to date, AJ, is a semisynthetic product generated from the major plant metabolite taccalonolide A in a two-step reaction. The first step involves hydrolysis of taccalonolide A to generate taccalonolide B, and then this product is oxidized to generate an epoxide group at C-22–C-23. To generate sufficient taccalonolide AJ for in vivo antitumor efficacy studies, the hydrolysis conditions for the conversion of taccalonolide A to B were optimized. During purification of the hydrolysis products, we identified the new taccalonolide AO (1) along with taccalonolide I. When the same hydrolysis reaction was performed on a taccalonolide E-enriched fraction, four new taccalonolides, assigned as AK, AL, AM, and AN (2–5), were obtained in addition to the expected product taccalonolide N. Biological assays were performed on each of the purified taccalonolides, which allowed for increased refinement of the structure–activity relationship of this class of compounds.

 

Jing Li†‡, Jiangnan Peng†‡, April L. Risinger†‡, and Susan L. Mooberry

J. Nat. Prod., Article ASAP

DOI: 10.1021/np400435t

Publication Date (Web): July 15, 2013


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