Academic literature on the topic 'Dynablocks'

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Journal articles on the topic "Dynablocks"

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Nguyen, Rémi, Eric Buhler, and Nicolas Giuseppone. "Dynablocks: Structural Modulation of Responsive Combinatorial Self-Assemblies at Mesoscale." Macromolecules 42, no. 16 (2009): 5913–15. http://dx.doi.org/10.1021/ma9014609.

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Dissertations / Theses on the topic "Dynablocks"

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Zanirati, Stefano. "Synthesis and nanostructuring modulations of self-assembled dynamic covalent amphiphiles." Thesis, Strasbourg, 2013. http://www.theses.fr/2013STRAF039.

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Contrôler les forces supramoléculaires et chirales a toujours été un défi pour la communauté scientifique. Dynablocks sont amphiphile basés sur des liaisons covalentes réversibles (imine) qui, dans l’eau, s’auto–assemblent en mésophases. Avec un nouveaux aldéhydes chargés et avec divers types d'amines (pKa et chaînes de PEG variables) dynablocks chargées ont été utilisés pour ajuster les surfaces micellaires (inversion noyau/coquille). Nous avons également étudié les propriétésd'auto-réplication (autopoiesis) et leur intérêt pour les premiers réplicateurs de la Terre prébiotique. Dynablocks non chargés ont plutôt été utilisés pour l'étude des structures à haute concentration et pour l’amplification chirale. Dans ce dernier,peptides amphiphiles dynablocks agissaient comme gelators avec une matrice formée d’un réseau 3D entrelacé. Une torsion supramoléculaire a été observée et une amplification chirale au niveau de la morphologie des structures a pu être détectée par AFM et TEM<br>Taking the control over supramolecular and chiral forces has always been a challenge for the scientific community. Dynablocks are amphiphiles based on reversible imine covalent bond that, in water, self-assemble in mesophases. With a new charged aldehyde, charged dynablocks were used to tune the surface of the assemblies directing the charged heads inward or outward, changing the PEG units and the pKa of the amines. Moreover, we continued the study on focusing the interest on self-replicating properties (autopoiesis), topic that provides insights for the first replicators that could have appeared in the prebiotic Earth. Non-charged dynablocks were instead employed for the study of structures in high concentration and for chiral amplification. In this latter, peptide amphiphilic dynablocks acted as gelators with a typical 3D intertwined network matrix. A supramolecular twist was observed and a chiral amplification in the structures morphologies was detected in AFM and TEM pictures
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Lutz, Eric. "Dynamic covalent surfactants for the controlled release of bioactive volatiles." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF041/document.

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Ce projet consiste à fabriquer et à étudier des micelles à la fois biocompatibles et capables de relarguer des molécules volatiles bioactives à partir d’une solution aqueuse sous l’influence de stimuli extérieurs tel que le pH, la température ou la concentration. Pour atteindre ce but, nous avons étudiés un nouveau type d’objets micellaires qui sont formés par l’auto-assemblage d’amphiphiles covalents dynamiques (DCAs), des surfactants peu onéreux formés de l’association moléculaire réversible d’un bloc hydrophile et d’un bloc hydrophobe. Ces systèmes peuvent relarger une large gamme de fragrances à partir d’une solution, que cela soit à partir du coeur hydrophobe de la micelle ou alors à partir de l’amphiphile (profragrance). Ils ont aussi été capables de stabiliser en solution des aldéhydes sensibles à l’hydrolyse<br>This project relies on the simple design and the study of biocompatible responsive micelles, capable of releasing a hydrophobic bioactive volatile from an aqueous solution and that, depending on the modulation of external factors such as pH, temperature, and concentration. To reach this goal, we have taken advantages of a new kind of micellar objects that are formed by the efficient self-assembly of biodegradable Dynamic Covalent Amphiphiles (DCAs), low cost surfactants that are made by the reversible molecular association of one hydrophilic and one hydrophobic block. These systems can release a broad variety of fragrances from solution, both from the hydrophobic micellar core or directly from the amphiphile (profragrance). It also proved able to stabilise some sensitive aldehydes in solution
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Conference papers on the topic "Dynablocks"

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Suzuki, Ryo, Junichi Yamaoka, Daniel Leithinger, et al. "Dynablock." In The 31st Annual ACM Symposium. ACM Press, 2018. http://dx.doi.org/10.1145/3242587.3242659.

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Kochavi, Eytan, Yosef Kivity, Ido Anteby, Oren Sadot, and Gabi Ben-Dor. "Numerical Modeling of Composite Concrete Walls." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59545.

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Dynamic tests of three reinforced concrete samples and six Dynablok samples were performed in the blast simulator facility at the University of California San-Diego (UCSD). The purpose of these tests was to evaluate the performance of a novel protective wall design. These tests were numerically simulated at the Protective Technologies Research and Development Center (PTR&amp;DC) of the Ben-Gurion University (BGU) in Beer-Sheva, Israel. The simulations were carried out using two commercial hydro-codes: LS-Dyna and Dytran. The purpose of these simulations was to calibrate the parameters of the material models available in the above codes. Once calibrated, the simulation results showed good agreement with the test results for largely deflected yet moderately damaged specimens.
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