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Technomimetics
Technomimetics are molecular systems that can mimic man-made devices. The term was first introduced in 1997.Gakh, A.A.; Sachleben, R.A.; and Bryan, J.C. Molecular gearing systems. ChemTech, 1997, 27(11), 26-33. The current set of technomimetic moleculesRapenne, G. Synthesis of technomimetic molecules: Towards rotation control in single molecular machines and motors. Org. Biomol. Chem. 2005, 3, 1165-1169. includes motors,Fletcher, S. P.; Dumur, F.; Pollard, M. M.; Feringa, B. L. A Reversible, Unidirectional Molecular Rotary Motor Driven by Chemical Energy. Science, 2005, 310(5745), 80-82. rotors,Kottas, G.S.; Clarke, L. I.; Horinek, D.; Michl, J. Artificial molecular rotors. Chem. Rev. 2005, 105, 1281-1376. gears,Manzano, C.; Soe, W.-H.; Wong, H. S.; Ample, F.; Gourdon, A.; Chandrasekhar, N.; Joachim, C. Step-by-step rotation of a molecule-gear mounted on an atomic-scale axis. Nature Materials, 2009, 8, 576-579. gyroscopes,Shima, T.; Hampel, F.; Gladysz, J.A. Molecular Gyroscope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Nanotechnology
Molecular nanotechnology (MNT) is a technology based on the ability to build structures to complex, atomic specifications by means of mechanosynthesis. This is distinct from nanoscale materials. Based on Richard Feynman's vision of miniature factories using nanomachines to build complex products ( including additional nanomachines), this advanced form of nanotechnology (or ''molecular manufacturing'') would make use of positionally-controlled mechanosynthesis guided by molecular machine systems. MNT would involve combining physical principles demonstrated by biophysics, chemistry, other nanotechnologies, and the molecular machinery of life, with the systems engineering principles found in modern macroscale factories. Introduction While conventional chemistry uses inexact processes obtaining inexact results, and biology exploits inexact processes to obtain definitive results, molecular nanotechnology would employ original definitive processes to obtain definitive resul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laura I
Laura may refer to: People and fictional characters * Laura (given name), including lists of people and fictional characters with the name * Laura, muse of Petrarch's poetry * Laura, the British code name for the World War I Belgian spy Marthe Cnockaert Places Australia * Laura, Queensland, a town on the Cape York Peninsula * Laura, South Australia, a town * Laura Bay, a bay on Eyre Peninsula * Laura River (Queensland) * Laura River (Western Australia) Italy * Laura (Capaccio), a village of the municipality of Capaccio, Campania * Laura, Crespina Lorenzana, a village in Tuscany United States * Laura, Illinois, an unincorporated community * Laura, Kentucky, an unincorporated community * Laura, Missouri, an unincorporated community * Laura, Ohio, a village Elsewhere * Laura, Saskatchewan, Canada, a hamlet * Laura, Marshall Islands, a town * Laura, Silesian Voivodeship, Poland, a village * Laura River (Romania) * 467 Laura, an asteroid Arts and entertainment Art * ''Laur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Machines
Molecular machines are a class of molecules typically described as an assembly of a discrete number of molecular components intended to produce mechanical movements in response to specific stimuli, mimicking macromolecule, macromolecular devices such as switches and motors. Naturally occurring or biological molecular machines are responsible for vital Biological process, living processes such as DNA replication and ATP synthase, ATP synthesis. Kinesins and ribosomes are examples of molecular machines, and they often take the form of Protein complex, multi-protein complexes. For the last several decades, scientists have attempted, with varying degrees of success, to miniaturize machines found in the macroscopic world. The first example of an artificial molecular machine (AMM) was reported in 1994, featuring a rotaxane with a ring and two different possible binding sites. In 2016 the Nobel Prize in Chemistry was awarded to Jean-Pierre Sauvage, Fraser Stoddart, Sir J. Fraser Stoddar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Tweezers
Molecular tweezers, and molecular clips, are host molecules with open cavities capable of binding guest molecules. The open cavity of the molecular tweezers may bind guests using non-covalent bonding, which includes hydrogen bonding, metal coordination, hydrophobic forces, van der Waals forces, π–π interactions, and/or electrostatic effects. These complexes are a subset of macrocyclic molecular receptors and their structure is that the two "arms" that bind the guest molecule between them are only connected at one end leading to a certain flexibility of these receptor molecules (induced fit model). History The term "molecular tweezers" was first used by Whitlock. The class of hosts was developed and popularized by Zimmerman in the mid-1980s to early 1990s and later by Klärner. Examples Some molecular tweezers bind aromatic guests. These molecular tweezers consist of a pair of anthracene arms held at a distance that allows aromatic guests to gain π–π interacti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanotechnology
Nanotechnology is the manipulation of matter with at least one dimension sized from 1 to 100 nanometers (nm). At this scale, commonly known as the nanoscale, surface area and quantum mechanical effects become important in describing properties of matter. This definition of nanotechnology includes all types of research and technologies that deal with these special properties. It is common to see the plural form "nanotechnologies" as well as "nanoscale technologies" to refer to research and applications whose common trait is scale. An earlier understanding of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabricating macroscale products, now referred to as molecular nanotechnology. Nanotechnology defined by scale includes fields of science such as surface science, organic chemistry, molecular biology, semiconductor physics, energy storage, engineering, microfabrication, and molecular engineering. The associated rese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
