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Latest Supramolecular chemistry Stories

2011-11-28 11:19:25

When will artificial molecular machines start working for us? Physicist Richard Feynman in his famous 1959 talk, "Plenty of Room at the Bottom," described the precise control at the atomic level promised by molecular machines of the future. More than 50 years later, synthetic molecular switches are a dime a dozen, but synthetically designed molecular machines are few and far between. Northwestern University chemists recently teamed up with a University of Maine physicist to explore the...

2011-11-18 03:44:19

The removal of rare tumor cells circulating in the blood might be possible with the use of biomolecules bound to dendrimers, highly branched synthetic polymers, which could efficiently sift and capture the diseased cells, according to new research at the University of Illinois at Chicago. Dendrimers have been used to encapsulate drug molecules and serve as a delivery vehicle, but in the new study they were employed to capture circulating tumor cells by biomimicry -- using nanotechnology to...

2011-11-17 10:30:04

Creating new, improved pharmaceuticals is sometimes very similar to cracking the code of a combination lock. If you have the wrong numbers, the lock won´t open. Even worse, you don´t know if your numbers are close to the actual code or way off the mark. The only solution is to simply guess a new combination and try again. Similarly, when a newly created drug doesn´t bind well to its intended target, the drug won´t work. Scientists are then forced to go back to the lab,...

2011-11-07 16:23:05

A research team headed by Professor David Leigh of the University of Edinburgh (UK) and Academy Professor Kari Rissanen of the University of Jyväskylä (Finland) have made the most complex molecular knot to date, as reported in Nature Chemistry (DOI:10.1038/NCHEM.1193, published online Nov. 6 2011). Knots can be found in DNA, proteins and even in the molecules that make up man-made plastics, where they often play an important role in the substance's properties...

Scientists Developing Self-Repairing Plastic Material
2011-10-31 04:28:46

A UK-based specialty chemical company has apparently developed a self-mending plastic that can repair itself without the need for glue, tape, or other materials, Telegraph Science Correspondent Richard Gray reported on Sunday. "It could mean that sitting on a pair of glasses may no longer be the disaster it once was as they could be quickly repaired by pushing the broken bits back together," Gray said. "The material could also put an end to broken children's toys as they could be easily...

2011-08-19 02:18:10

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. Now, thanks to a clever bit of molecular design by University of Pennsylvania and Duke University bioengineers and chemists, such warning can come in the form of a simple color change. The study was conducted by professor Daniel Hammer and graduate students Neha Kamat and Laurel Moses...

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2011-04-21 12:53:58

Discovery of self-corrective healing process for polymer detailed this week in the journal Nature Imagine you're driving your own new car--or a rental car--and you need to park in a commercial garage. Maybe you're going to work, visiting a mall or attending an event at a sports stadium, and you're in a rush. Limited and small available spots and concrete pillars make parking a challenge. And it happens that day: you slightly misjudge a corner and you can hear the squeal as you scratch the...

2011-04-20 21:33:06

Discovery of self-corrective healing process for polymer detailed this week in the journal Nature Imagine you're driving your own new car--or a rental car--and you need to park in a commercial garage. Maybe you're going to work, visiting a mall or attending an event at a sports stadium, and you're in a rush. Limited and small available spots and concrete pillars make parking a challenge. And it happens that day: you slightly misjudge a corner and you can hear the squeal as you scratch the...

2011-04-20 21:30:49

Collaboration among Case Western Reserve University, the University of Fribourg and the Army Research Laboratory uses light to trigger repair Your 6-year-old found a nail in the garage and drew pictures across the side of your new car. Gnash your teeth now, but researchers at Case Western Reserve University, U.S., say the fix-up may be cheap and easy to do yourself in the not-too-distant future. Together with partners in the USA and Switzerland, they have developed a polymer-based material...

2011-01-10 14:35:18

New insights from the nano world The mechanism for binding oxygen to metalloporphyrins is a vital process for oxygen-breathing organisms. Understanding how small gas molecules are chemically bound to the metal complex is also important in catalysis or the implementation of chemical sensors. When investigating these binding mechanisms, scientists use porphyrin rings with a central cobalt or iron atom. They coat a copper or silver support surface with these substances. An important...


Latest Supramolecular chemistry Reference Libraries

Synthetic Metals
2012-05-17 14:54:38

Synthetic Metals is a peer-reviewed scientific journal published by Elsevier. It covers all aspects of electronic polymers and electronic molecular materials. It is an international medium for the rapid publication of original research papers, short communications and subject reviews dealing with research on and applications of electronic polymers and electronic molecular materials including novel carbon architectures. Original manuscripts on chemical, electrochemical, electrical, photonic...

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Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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