supramolecular chemistry

(redirected from Supermolecular)

supramolecular chemistry

[‚sü·prə·mə‚lek·yə·lər ′kem·ə·strē]
(chemistry)
A highly interdisciplinary field covering the chemical, physical, and biological features of complex chemical species held together and organized by means of intermolecular (noncovalent) bonding interactions such as hydrogen bonds, van der Waals forces, and hydrophobic interactions.
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Summary: In the last two decades, a lot of progress has been made in Nanotechnology and Nanoscience, an exploitation of matter on atomic, molecular and supermolecular scale.
At low weld pressure, similar supermolecular structure in the weld area and bulk material can be observed both for unreinforced and reinforced POM.
Meijer, A modular and supermolecular approach to bioactive scaffolds for tissue engineering, Nat Mater.
By forming intramolecular and intermolecular hydrogen bonds between OH groups within the same cellulose chain and the surrounding cellulose chains the chains tend to be arranged parallel and form a crystalline supermolecular structure.
This could be a boon to supermolecular chemists using DNA to build nano-structured materials for drug delivery and other applications.
The idea is that an understanding of the basic chemistry, supermolecular assembly of block and graft polymers, and microscopic fracture mechanisms will allow chemists to derive macroscopic behavior and thus select the most suitable polymer for a given application.
Over the past decade we have demonstrated some of the most bioactive materials ever reported by making supermolecular polymers and giving them structures that can signal cells," Stupp said.
The National Nanotechnology Initiative (NNI) advocates a strict definition of nanotechnology by "including only activities at the atomic, molecular, and supermolecular levels, in the length scale of approximately 1--100 nm range that create materials, devices, and systems with fundamentally new properties and function because of their small structure" (Holley, 2009, p.
Specific topics include controlled release and materials conversion using nanostructured supermolecules, supermolecular systems based on dielectric elastomer actuators for biomimetic and biomedical applications, optical properties of self-assembled colloidal photonic crystals doped with citrate-capped gold nanoparticles, tuneable micro- and nano-periodic structures in urethane/urea networks, biomimetic apatite coatings, mimicking biomineralization processes, molecular engineering of phenyleneethynylenes towards specific molecular and supramolecular organization for optoelectronics, microstructural influence on flexure strength of a ceromer reinforced by polyethylene and glass fibers, and fundamentals of the nanocrystal formation from supersaturated solutions.
Despite its simple molecular structure, cellulose shows a large complexity and variability in its supermolecular arrangement in cellulose fibrils.
Companies involved are the French Soufflet and Maguin firms, working together with biochemists of the Institute of Science and Supermolecular Engineering in Strasbourg.
Finally, they can be classified based on the physical structure of the networks as amorphous, semicrystalline, hydrogen-bonded structures, supermolecular structures and hydrocolloidal aggregates.