X-ray structural analysis of poly (ethylene terephthalate) films

Razumova, L.L.; Rudakova, T.Ye.; Moiseyev, Yu.V.; Melnikov, Leonid A.; Zaikov, G.Ye.

doi:10.1016/0032-3950(75)90274-9

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…This review covers articles published before 2007 on invertebrate thin and thick filament structure, force production and actomyosin regulation, and catch and asynchronous muscle (some 1,300 of the 7,100 articles presently in the database). However, we cannot cover articles in languages we cannot read; articles completely in languages other than English, French, German, Italian, and Spanish are therefore not included (not included but on-topic articles in Japanese, Chinese, or Korean: Hozawa, 1911;Sheng et al, 1956;Yazawa and Yoshida, 1979;Fan and Chen, 1986;Nishita, 1998;Katoh, 1999;Ojima, 2003;Funabara, 2004;in Russian: Samosudova and Frank, 1962;Razumova et al, 1966Razumova et al, , 1968Razumova et al, , 1972Razumova et al, , 1973aRazumova et al, , 1973bRazumova et al, , 1975. We have also not included articles in which the species used is not identified or cannot now be identified (requiring a book long out of print) (Aubert, 1944;Kuschinski and Turba, 1950;Szent-Györgyi, 1953;Philpott and Szent-Györgyi, 1954;Szent-Györgyi and Borbiro, 1956;Cohen and Szent-Györgyi, 1957;Szent-Györgyi and Cohen, 1957;Szent-Györgyi et al, 1960;Maruyama and Ishikawa, 1963;Shechter and Blout, 1964;Baier and Zobel, 1966;Kominz and Maruyama, 1967;Botts et al, 1972;Moos, 1972;Ogawa, 1985;Mehta et al, 1997).…”

Section: Scope Of Review and Literature Databasementioning

confidence: 99%

Invertebrate muscles: Thin and thick filament structure; molecular basis of contraction and its regulation, catch and asynchronous muscle

Hooper

Hobbs

Thuma

2008

Progress in Neurobiology

131

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This is the second in a series of canonical reviews on invertebrate muscle. We cover here thin and thick filament structure, the molecular basis of force generation and its regulation, and two special properties of some invertebrate muscle, catch and asynchronous muscle. Invertebrate thin filaments resemble vertebrate thin filaments, although helix structure and tropomyosin arrangement show small differences. Invertebrate thick filaments, alternatively, are very different from vertebrate striated thick filaments and show great variation within invertebrates. Part of this diversity stems from variation in paramyosin content, which is greatly increased in very large diameter invertebrate thick filaments. Other of it arises from relatively small changes in filament backbone structure, which results in filaments with grossly similar myosin head placements (rotating crowns of heads every 14.5 nm) but large changes in detail (distances between heads in azimuthal registration varying from three to thousands of crowns). The lever arm basis of force generation is common to both vetebrates and invertebrates, and in some invertebrates this process is understood on the near atomic level. Invertebrate actomyosin is both thin (tropomyosin:troponin) and thick (primarily via direct Ca ++ binding to myosin) filament regulated, and most invertebrate muscles are dually regulated. These mechanisms are well understood on the molecular level, but the behavioral utility of dual regulation is less so. The phosphorylation state of the thick filament associated giant protein, twitchin, has been recently shown to be the molecular basis of catch. The molecular basis of the stretch activation underlying asynchronous muscle activity, however, remains unresolved.

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Section: Scope Of Review and Literature Databasementioning

confidence: 99%

Invertebrate muscles: Thin and thick filament structure; molecular basis of contraction and its regulation, catch and asynchronous muscle

Hooper

Hobbs

Thuma

2008

Progress in Neurobiology

131

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“…The changes in the diffractograms of the fibres and the results of stereological analysis of the areas under the diffraction curves of the amorphous halos and crystalline peaks [13,14] indicate the presence of two crystalline phases in the fibres. The basic phase (2θ = 21.5°) corresponds to the so-called Astbury structure [15], while the reflection at 2θ ~ 24° belongs to the second crystalline modification of PET the Bunn structure [16]. We know [16,17] that some of the atoms in each unit of the PET macromolecule, including the benzene ring atoms, lie behind plane (010) and some lie in front of it.…”

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confidence: 99%

Modification of poly(ethylene terephthalate) fibres with bactericides with the craze formation mechanism

et al. 2006

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The possibility of immobilizing bactericides on PET fibres by the craze formation mechanism was demonstrated. Of the bactericides investigated, Al (althosan) was a more active modifier of the fibres than Ct (catamine). The resistance of the bactericidal fibres to wet treatments simulating laundering conditions was demonstrated, and this allows using fabric articles made from them for a long time.The biological safety of the human habitat is frequently raising concern due to technogenic catastrophes, military conflicts, bioterrorism, and environmental pollution by industrial and solid household wastes [1]. Due to global deterioration of the environmental situation, there has been a trend of perturbation of the natural balance of microflora toward predominant multiplication of pathogenic microorganisms, including those populating objects used in the home [2]. Damage of textiles by microorganisms and the unfavorable effect of this process on human health and quality of life are important aspects of this problem. Obviously, in the humantextile articlehabitat system, textile goods can fulfill the protective function of neutralizing microorganisms that cause illness in humans. One current trend in solving this pressing problem is to create chemical fibres with bactericidal properties and to use them for manufacturing textile articles.The use of bactericidal fibres not only increases the level of protection of humans from biological hazards but also protects the textiles themselves from biodeterioration [3][4][5][6]. For this reason, the chemical fibre industry is faced with the urgent problem of selecting bactericidal agents and developing technologies for modifying polymeric materials with a fibre base with these agents.The basic requirements for antibacterial fibres are the absence of systemic toxic, allergenic, and irritating effects on human skin, resistance to light and temperature, ability to retain bactericidal action over a perhaps long period of use, including repeated laundering and cleaning.The analysis of the scientific and patent literature suggests a variety of bactericides and polymeric material modification technologies used in the industry. The technologies for incorporating bactericidal components in polymeric materials can be combined in the following groups [7]: application of bactericides on the fibres in coatings; extrusion processing together with the initial polymer composite; saturation of the surface layer of polymer granules with bactericidal metal cations; treatment of adsorption-active particles of polymer binder filler with a bactericide; successive treatment of polymer articles with a solvent of the polymeric material and a bactericide compatible with the solvent; incorporation of bactericidal additives in chemical fibres with the crazing mechanism.Crazing ideology is set out in [8]. In stretching of polymer fibres in liquids with physicochemical activity, so-called crazes branching microcracks from 1 to 100 nm in size appear in the bulk of the fibre. This system of microcracks can be rep...

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Mechanism of the formation of rough surfaces on poly(ethylene terephthalate) films prepared by chemical etching in aqueous alkaline solutions

Rudakova

Moiseyev

Astrina

et al. 1975

Polymer Science U.S.S.R.

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X-ray structural analysis of poly (ethylene terephthalate) films

Cited by 4 publications

References 6 publications

Invertebrate muscles: Thin and thick filament structure; molecular basis of contraction and its regulation, catch and asynchronous muscle

Invertebrate muscles: Thin and thick filament structure; molecular basis of contraction and its regulation, catch and asynchronous muscle

Modification of poly(ethylene terephthalate) fibres with bactericides with the craze formation mechanism

Mechanism of the formation of rough surfaces on poly(ethylene terephthalate) films prepared by chemical etching in aqueous alkaline solutions

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