Organic molecular switches

Reuter MG, Sukharev M, Seideman T (2008) Laser field alignment of organic molecules on semiconductor surfaces toward ultrafast molecular switches. Phys Rev Lett 101 (20) 208303... 

This model was developed at CIEA in Japan, and the first information about the mouse was published in 1990. The mice have five or six copies of the human H-ras proto-oncogene inserted in tandem into their genome surrounded by their own promoter and enhancer regions. This transgene has been very stabile, with no loss of responsiveness since the model was developed. The transgene codes for a molecular switch protein in the same way as the previous model, but the transgene is expressed in all organs and tissues. Thus the response endpoint is not primarily dermal. 

Supermolecular Siruclures Speculative work aimed at superconductors, organic metals. 3D memory storage, molecular switches. 

Molecular electronics currently is defined as the use of organic molecular materials to perform an active function in the processing of information and its transmission and storage. An alternative definition has been suggested, namely, the achievement of switching on a molecular scale. As observed by G.G. Roberts (University of Oxford), It is interesting to note that only a modest diminution in the size of electronic circuit components is required before the scale of individual molecules is reached in fact many existing ciicuit elements could alieady be accommodated within the aiea occupied by a leukemia virus. ... 

Vyacheslav V. Samoshin was born in Norilsk, Russian Federation. He graduated with an Honorable Diploma (M.S.) from Moscow State University in 1974. At the same university, he defended his Ph.D. dissertation under the supervision of academician Nikolay S. Zefirov in 1982, and his Doctor of Chemical Sciences dissertation in 1991. He worked as a researcher in the Department of Chemistry, Moscow State University, and since 1992 as professor (head of the Division of Organic Chemistry in Moscow State Academy of Fine Chemical Technology). In 1999, he took his present position as professor of chemistry at the University of the Pacific, Stockton, California. His scientific interests include molecular switches, conformational analysis, synthesis and studies of bioactive compounds, including carbohydrate mimetics, asymmetric synthesis, and synthesis and studies of crown ethers and relative compounds. 

Fraser Stoddart, from UCLA, is a master in many fields of organic and supramolecular chemistry and materials science. Arenes are building blocks in many of the molecules synthesized by his research group, in particular his catenanes for the design of molecular machines. He has co-authored a chapter (No. 16) together with Hsian-Rong Tseng on molecular switches and machines. 

High quantum yield photochemical reactions of condensed-phase species may become useful for future optical applications such as molecular switches, optical limiters, and read-write data storage media. Toward these ends, much research has been conducted on novel nonlinear chemical-based materials such as conducting polymers and metal-organic species. Monitoring the early time-dependent processes of these photochemical reactions is key to understanding the fundamental mechanisms and rates that control the outcome of these reactions, and this could lead to improved speed and efficiencies of devices. 

Reviews on molecular switches and motors based on sterically hindered alkenes derived from naphtho[2,1 -6]thiopyrans <07JOC6635> and organic materials science <07JOC7477> have been published. A modified light-driven molecular motor has been found to function as a monolayer on quartz <07AG(E)1278>. 

We are unlikely to appreciate a car that does not run or a computer that does not compute. Likewise, molecular switches that bump and tumble randomly in solution cannot yield a functional effect they must be organized in bulk or at interfaces to produce a coherent and cooperative effect of technological relevance [223-225], Only then might it be possible to dub them machines in the true sense of the word. Thus, the most beautiful molecular machines are those [222] that we put to work for us. Here we provide several examples. 

---