News tagged with porphyrins
Designing a dye you can count on
Natural substances such as chlorophyll and the heme pigment of red blood cells contain colorful molecules known as porphyrins. They owe their exceptional visual characteristics to a ‘macrocyclic’ ...
May 24, 2012 |
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Porphyrin Dimers Increase Efficiency of Dye-Sensitized Solar Cells
(PhysOrg.com) -- Porphyrins are most commonly thought of as the pigment in red blood cells, but now scientists have found that porphyrins can also be used to increase the efficiency of an inexpensive type ...
Oct 30, 2009 |
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Search results for porphyrins
Electron hopping in graphene oxide leads to highly sensitive sensing
(Phys.org) -- Graphene has many promising applications on its own, but pairing the two-dimensional material with the semiconductor titanium dioxide (TiO2) extends its capabilities even further. A team of ...
Nanotechnology / Nanomaterials
May 17, 2012 |
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Sunlight and air powers access to sterile water
Researchers at the University of Hull (UK) are developing a way to produce constant supplies of sterile water, powered simply by sunlight and air. The device is aimed at remote communities where conventional systems using ...
May 04, 2012 |
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Twisting of protein molecules in water is successfully captured on molecular movie
A research group led by Hyotcherl Ihee at the Korea Advanced Institute of Science and Technology (KAIST) observed twisting of protein molecules in an aqueous solution (which is very similar to the environment ...
Apr 27, 2012 |
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Safer way to make diazomethane developed
(PhysOrg.com) -- Diazomethane is a toxic, explosive reagent prepared as needed in laboratories, where it is commonly used in cyclopropanation, but its explosive nature prevents it being used widely on an industrial ...
Mar 23, 2012 |
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The smallest conceivable switch: Targeted proton transfer within a molecule
For a long time miniaturization has been the magic word in electronics. Dr. Willi Auwaerter and Professor Johannes Barth, together with their team of physicists at the Technische Universitaet Muenchen (TUM), ...
Dec 12, 2011 |
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Making a light-harvesting antenna from scratch
(PhysOrg.com) -- Sometimes when people talk about solar energy, they tacitly assume that we're stuck with some version of the silicon solar cell and its technical and cost limitations. Not so.
Nov 29, 2011 |
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Dye-sensitized solar cells break a new record
(PhysOrg.com) -- Dye-sensitized Grätzel solar cells have just set a new efficiency benchmark. By changing the composition and color of the cells, an EPFL team has increased their efficiency to more than ...
Technology / Energy & Green Tech
Nov 14, 2011 |
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Ringing the hemoglobin bell
(PhysOrg.com) -- Knowing the structure of a molecule is an important part of understanding it, but quite often it’s even more important to know how the molecule moves -- more specifically, the vibrational ...
Sep 08, 2011 |
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Artificial light-harvesting method achieves 100% energy transfer efficiency
(PhysOrg.com) -- In an attempt to mimic the photosynthetic systems found in plants and some bacteria, scientists have taken a step toward developing an artificial light-harvesting system (LHS) that meets one ...
Sep 01, 2011 |
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Molecular scientists develop color-changing stress sensor
It is helpful — even life-saving — to have a warning sign before a structural system fails, but, when the system is only a few nanometers in size, having a sign that's easy to read is a challenge. ...
Chemistry / Analytical Chemistry
Aug 18, 2011 |
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List of search results for porphyrins
