منابع مشابه
Elastic Properties of Crosslinked Polymers
At first a survey is given on the thermodynamics of rubber-elasticity and the results of the statistical theory of molecular networks. Experimental data of torsional vibrations, stress—strain measurements (simple extension and uniaxial compression) and photoelastic properties in dependence of temperature are reported. The measurements have been carried out on dry and swollen crosslinked polymer...
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Recently experiments have been conducted to investigate the behavior of live human red blood cells under optical forces generated using both linearly and circularly polarized light [1, 2]. These experiments have shown that a normal human RBC, which has a biconcave disk shape, approximately 8 μm in diameter, deforms into a folded shape upon being placed in an optical trap; the trapped RBC subseq...
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Nanomechanical devices or molecular machines will, for a broad range of applications, most likely be powered by light or other kinds of electromagnetic radiation. The major reasons are ease of addressability, picosecond reaction times to external stimuli, and compatibility with a broad range of ambient substances, such as solvents, electrolytes, or gases. Azobenzene is a well-studied photoactiv...
متن کاملElastic lattice polymers.
We study a model of "elastic" lattice polymer in which a fixed number of monomers m is hosted by a self-avoiding walk with fluctuating length l . We show that the stored length density ρm≡1-/m scales asymptotically for large m as ρm=ρ∞(1-θ/m+…) , where θ is the polymer entropic exponent, so that θ can be determined from the analysis of ρm. We perform simulations for elastic lattice polymer l...
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Mutastein, a casein polymer that inhibits insoluble glucan synthesis by Streptococcus sobrinus, was produced when Aspergillus terreus was grown in a medium containing α-casein. In these experiments, it was shown that flavipin (3,4,5-trihydroxy-6-methyl-o-phthalaldehyde) isolated from cultures of A. terreus caused polymerization of α-casein. Like mutastein, the polymerization products were activ...
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ژورنال
عنوان ژورنال: Pure and Applied Chemistry
سال: 1974
ISSN: 1365-3075,0033-4545
DOI: 10.1351/pac197439010161