Literatura académica sobre el tema "Template-Directed polymerization"
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Artículos de revistas sobre el tema "Template-Directed polymerization"
G. Lynn, David, Xiaoyu Li, Andres F. Hernandez, Martha A. Grover y Nicholas V. Hud. "Step-Growth Control in Template-Directed Polymerization". HETEROCYCLES 82, n.º 2 (2010): 1477. http://dx.doi.org/10.3987/com-10-s(e)99.
Texto completoLin, Tao, Xue Song Shang, Jinne Adisoejoso, Pei Nian Liu y Nian Lin. "Steering On-Surface Polymerization with Metal-Directed Template". Journal of the American Chemical Society 135, n.º 9 (26 de febrero de 2013): 3576–82. http://dx.doi.org/10.1021/ja311890n.
Texto completoKanaya, Eiko y Hiroshi Yanagawa. "Template-directed polymerization of oligoadenylates using cyanogen bromide". Biochemistry 25, n.º 23 (18 de noviembre de 1986): 7423–30. http://dx.doi.org/10.1021/bi00371a026.
Texto completoWang, Cheng-Xin, Jian-Le Chen, Chen-Hui Shu, Ke-Ji Shi y Pei-Nian Liu. "On-surface synthesis of 2D COFs on Cu(111) via the formation of thermodynamically stable organometallic networks as the template". Physical Chemistry Chemical Physics 21, n.º 24 (2019): 13222–29. http://dx.doi.org/10.1039/c9cp01843c.
Texto completoKhan, Afzal, David M. Haddleton, Michael J. Hannon, Dax Kukulj y Andrew Marsh. "Hydrogen Bond Template-Directed Polymerization of Protected 5‘-Acryloylnucleosides". Macromolecules 32, n.º 20 (octubre de 1999): 6560–64. http://dx.doi.org/10.1021/ma990283j.
Texto completoLehman, Niles y Eric J. Hayden. "Template-Directed RNA Polymerization: The Taming of the Milieu". ChemBioChem 12, n.º 18 (26 de octubre de 2011): 2727–28. http://dx.doi.org/10.1002/cbic.201100611.
Texto completoSHARMA, AJEET K. y DEBASHISH CHOWDHURY. "TEMPLATE-DIRECTED BIOPOLYMERIZATION: TAPE-COPYING TURING MACHINES". Biophysical Reviews and Letters 07, n.º 03n04 (diciembre de 2012): 135–75. http://dx.doi.org/10.1142/s1793048012300083.
Texto completoLi, Heng, Han Miao, Yong Gao, Huaming Li y Daoyong Chen. "Efficient synthesis of narrowly dispersed amphiphilic double-brush copolymers through the polymerization reaction of macromonomer micelle emulsifiers at the oil–water interface". Polymer Chemistry 7, n.º 27 (2016): 4476–85. http://dx.doi.org/10.1039/c6py00705h.
Texto completoYang, Guangjie, Tianli Ning, Wei Zhao, Wenxiu Deng y Xikui Liu. "Robust ambient pressure dried polyimide aerogels and their graphene oxide directed growth of 1D–2D nanohybrid aerogels using water as the only solvent". RSC Advances 7, n.º 26 (2017): 16210–16. http://dx.doi.org/10.1039/c7ra01751k.
Texto completoGu, Siyi, Shizhang Fu, Caimei Gong, Sihao Li, Xiaoqing Liu, Yan Lu, Zhongping Wang y Li Wang. "Directing on-surface polymerization via a substrate-directed molecular template". Physical Chemistry Chemical Physics 24, n.º 5 (2022): 3030–34. http://dx.doi.org/10.1039/d1cp04911a.
Texto completoTesis sobre el tema "Template-Directed polymerization"
Gqwaka, Olona P. C. "A generic rate equation for catalysed, template-directed polymerisation and its use in computational systems biology". Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17825.
Texto completoENGLISH ABSTRACT: Progress in computational systems biology depends crucially on the availability of generic rate equations that accurately describe the behaviour and regulation of catalysed processes over a wide range of conditions. Such equations for ordinary enzyme-catalysed reactions have been developed in our group and have proved extremely useful in modelling metabolic networks. However, these networks link to growth and reproduction processes through template-directed synthesis of macromolecules such as polynucleotides and polypeptides. Lack of an equation that captures such a relationship led us to derive a generic rate equation that describes catalysed, template-directed polymerisation reactions with varying monomer stoichiometry and varying chain length. A model describing the mechanism of a generic template-directed polymerisation process in terms of elementary reactions with mass action kinetics was developed. Maxima, a computational algebraic solver, was used to determine analytical expressions for the steady-state concentrations of the species in the equation system from which a steady-state rate equation could be derived. Using PySCeS, a numerical simulation platform developed in our group, we calculated the time-dependent evolution and the steadystates of the species in the catalytic mechanisms used in the derivation of the rate equations. The rate equation was robust in terms of being accurately derived, and in comparison with the rates determined with PySCeS. Addition of more elongation steps to the mechanism allowed the generalisation of the rate equation to an arbitrary number of elongations steps and an arbitrary number of monomer types. To test the regulatory design of the system we incorporated the generic rate equation in a computational model describing a metabolic system consisting of multiple monomer supplies linked by a template-directed demand reaction. Rate characteristics were chosen to demonstrate the utility of the simplified generic rate equation. The rate characteristics provided a visual representation of the control and regulation profile of the system and showed how this profile changes under varying conditions.
AFRIKAANSE OPSOMMING: Die beskikbaarheid van generiese snelheidsvergelykings wat die gedrag en regulering van gekataliseerde prosesse akkuraat oor ’n wye reeks omstandighede beskryf is van kardinale belang vir vooruitgang in rekenaarmatige sisteembiologie. Sulke vergelykings is in ons groep ontwikkel vir gewone ensiem-gekataliseerde reaksies en blyk uiters nuttig te wees vir die modellering van metaboliese netwerke. Hierdie netwerke skakel egter deur templaat-gerigte sintese van makromolekule soos polinukleotiede en polipeptiede aan groei- en voorplantingsprosesse. Die gebrek aan vergelykings wat sulke verwantskappe beskryf het ons genoop om ’n generiese snelheidsvergelyking af te lei wat gekataliseerde, templaatgerigte polimerisasie-reaksies met wisselende monomeerstoigiometrie en kettinglengte beskryf. ’n Model wat die meganisme van ’n generiese templaat-gerigte polimerisasie-proses in terme van elementêre reaksies met massa-aksiekinetika beskryf is ontwikkel. Maxima, ’n rekenaarmatige algebraïese oplosser, is gebruik om analitiese uitdrukkings vir die bestendige- toestand konsentrasies van die spesies in die vergelyking-stelsel te vind. Hierdie uitdrukkings is gebruik om ’n bestendige-toestand snelheidsvergelyking af te lei. Ons het die tyd-afhanklike progressie en die bestendige toestande bereken van die spesies in die katalitiese meganismes wat gebruik is in die afleiding van die snelheidsvergelykings. Die rekenaarprogram PySCeS is ’n numeriese simulasieplatform wat in ons groep ontwikkel is. Die snelheidsvergelyking blyk akkuraat afgelei te wees en is in ooreenstemming met snelhede deur PySCeS bereken. Die toevoeging van verdere verlengingstappe tot die meganisme het dit moontlik gemaak om die snelheidsvergelyking te veralgemeen tot ’n arbitrêre hoeveelheid verlengingstappe en monomeertipes. Om die regulatoriese ontwerp van die sisteem te toets het ons die generiese snelheidsvergelyking in ’n rekenaarmatige model geïnkorporeer wat ’n metaboliese sisteem bestaande uit verskeie monomeer-aanbodblokke en ’n templaatgerigte aanvraagblok beskryf. Snelheidskenmerkanalise is gekies om die nut van die vereenvoudigde generiese snelheidsvergelyking te demonstreer. Met hierdie snelheidskenmerke kon ons die kontrole- en reguleringsprofiel van die stelsel visualiseer en wys hoe hierdie profiel verander onder wisselende omstandighede.
Engelhart, Aaron Edward. "Nucleic acid assembly, polymerization, and ligand binding". Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45979.
Texto completoLaurent, Gabin. "A statistical view on the origin of homochirality". Electronic Thesis or Diss., Université Paris sciences et lettres, 2022. http://www.theses.fr/2022UPSLS043.
Texto completoLiving systems on earth are homochiral. This means that for every chiral species they contain, one of the two possible enantiomers is present in much higher fraction than its mirrored counterpart. Homochirality has continuously puzzled scientists ever since the discovery of chirality by Pasteur, because a mechanism for its emergence is not yet solved, nor is the question of whether homochirality is a prerequisite or a consequence of life. In this thesis, we propose two physical scenarios in which homochirality could have emerged prior to or alongside life. We first show that large and complex chiral chemical networks are subject to a symmetry breaking transition from a racemic state to a homochiral one as the number of chiral compounds they contain becomes large. This robust mechanism relies on properties of large random matrices and requires only a few constraints on the chemical network. It is illustrated with a generalization of the famous Frank model which contains a large number of chemical species. We also quantify how abundant chiral molecules are in nature through an analysis of molecular databanks which shows a threshold above which chiral compounds dominate achiral ones. In a second part, we present a scenario based on template-directed ligation of biopolymers such as RNA, which involves the extension of RNA polymers by ligation with other oligomers or monomer compatible with base paring. This process presents autocatalysis and chiral inhibition which are two key ingredients for a symmetry breaking transition leading to a homochiral state. Using detailed stochastic simulations of template-directed ligation of chiral polymeric systems, we thus investigate the propensity of systems inocculated initially with a racemic mixture of RNA monomers to evolve towards a homochiral polymer system in the presence of racemization reactions. Two kinds of reactors and their different conditions are studied in this work: closed out-of-equilibrium reactors with a conserved number of RNA monomers and open reactors in which species are being degraded over time and some are chemostated. In addition, temperature cycles or dry-wet cycles are assumed to be present in both cases. We find that full homochirality is reached for closed systems in presence of racemization reactions due to chiral stalling, which slows ligation when opposite chiralities are paired closed to the ligation site. Remarkably, the homochirality transition helps the system to reach longer average polymer length, which is typically difficult in non-enzymatic polymerization. Open reactor simulations can only reach partial and transient enantiomeric excesses but without the need of racemization reactions. The work presented in this thesis focuses on the amplification process of a small initial enantiomeric excess imbalance generated by a particular physical or chemical phenomenon or simply by statistical fluctuations
Capítulos de libros sobre el tema "Template-Directed polymerization"
Monnard, Pierre-Alain. "Template-Directed Polymerization". En Encyclopedia of Astrobiology, 1651–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_1566.
Texto completoMonnard, Pierre-Alain. "Template-Directed Polymerization". En Encyclopedia of Astrobiology, 2470–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_1566.
Texto completoMonnard, Pierre-Alain. "Template-Directed Polymerization". En Encyclopedia of Astrobiology, 1–3. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_1566-2.
Texto completo"Nonenzymatic Template-Directed Polymerization". En Encyclopedia of Astrobiology, 1696. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_100802.
Texto completo"Non-Enzymatic Template-Directed Polymerization". En Encyclopedia of Astrobiology, 1127. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_2842.
Texto completo