Navigation Links
String of fullerene pearls

Under an atomic force microscope, the tiny structures look like fragments of nanoscopic pearl necklaces. In reality, the pearls are fullerene molecules that are linked together by means of a special fullerene-binding molecule. Spanish researchers describe their method for threading these nanopearls in the latest issue of the journal Angewandte Chemie.

Fullerenes are spherical, cage-like molecules made of 60 carbon atoms whose linkages resemble the five- and six-sided leather patches on a soccer ball. Recently, a team in Madrid headed by Nazario Martn developed a novel electroactive fullerene receptor molecule, a molecule that specifically recognizes and binds to the surfaces of fullerenes.

Now the researchers have gone a step further: They have produced molecular chimeras by binding their fullerene receptors to a fullerene molecule. The receptor portion is a system of eleven rings. It recognizes the fullerene portion of neighboring fullerene-receptor chimeras and grasps it from two sides like a pincer. This results in linear aggregates of molecules lined up like pearls. The researchers found fragments containing up to 35 pearls under the atomic force microscope.

When the pincer-like receptor grasps the fullerene, its flat aromatic rings spread over the equally flat ring systems on the fullerene surface. This results in special binding interactions between the electrons of these ring systems. Under certain conditions, it is possible to transfer electrons between such complementary electron systems. This property could make these fragments interesting as a new starting material for more efficient optoelectronic components.

In any case, the formation of this supramolecular polymer represents a new approach to the controlled organization of electroactive materials.


Contact: Nazario Martn

Page: 1

Post Your Comments:
(Date:11/24/2015)... , ... November 24, 2015 , ... ... of the year and one of the premier annual events for pharmaceutical manufacturing: ... from 8–11 November 2015, where ISPE hosted the largest number of attendees in ...
(Date:11/24/2015)... India , November 24, 2015 ... a new market research report "Oligonucleotide Synthesis Market by ... Application (PCR, Gene Synthesis, Diagnostic, DNA, RNAi), End-User (Research, ... 2020", published by MarketsandMarkets, the market is expected to ... Million in 2015, at a CAGR of 10.1% during ...
(Date:11/24/2015)... 24, 2015 SHPG ) announced today that ... Piper Jaffray 27 th Annual Healthcare Conference in ... at 8:30 a.m. EST (1:30 p.m. GMT). --> SHPG ... will participate in the Piper Jaffray 27 th Annual Healthcare ... Tuesday, December 1, 2015, at 8:30 a.m. EST (1:30 p.m. GMT). ...
(Date:11/24/2015)... QUEBEC CITY , Nov. 24, 2015 /PRNewswire/ ... (the "Company") announced today that the remaining 11,000 ... Common Share Purchase Warrants (the "Series B Warrants") ... agreement were exercised on November 23, 2015, which ... Common Shares.  After giving effect to the issuance ...
Breaking Biology Technology:
(Date:11/16/2015)... Nov 16, 2015  Synaptics Inc. (NASDAQ: ... solutions, today announced expansion of its TDDI product ... touch controller and display driver integration (TDDI) solutions ... These new TDDI products add to the previously-announced ... TD4302 (WQHD resolution), and TD4322 (FHD resolution) solutions. ...
(Date:11/10/2015)... 10, 2015  In this report, the ... of product, type, application, disease indication, and ... report are consumables, services, software. The type ... biomarkers, efficacy biomarkers, and validation biomarkers. The ... diagnostics development, drug discovery and development, personalized ...
(Date:11/2/2015)... Nov. 2, 2015  SRI International has been awarded ... preclinical development services to the National Cancer Institute (NCI) ... provide scientific expertise, modern testing and support facilities, and ... pharmacology and toxicology studies to evaluate potential cancer prevention ... The PREVENT Cancer Drug Development Program is an NCI-supported ...
Breaking Biology News(10 mins):