Relevant bibliographies by topics / Acrystal

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  2. Dissertations / Theses

Academic literature on the topic 'Acrystal'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Acrystal"

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Rusu, Iulian, Mihail-Liviu Craus, Daniel Sutiman, and Alice Rusu. "On the possible formation of Aurivillius phases in the oxide system Bi2O3-ZnO-Nb2O5." Journal of the Serbian Chemical Society 69, no. 1 (2004): 53–58. http://dx.doi.org/10.2298/jsc0401053r.

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This paper presents results concerning the possible synthesis of double perovskite and Aurivillius phases in the BZN system. Acrystal chemical criterion based on an elastic model for the structure was used in order to determine if the formation of layered bismuth compounds is favoured in the above system. The tempeature seems to be the decisive factor influencing Aurivillius phase formation.
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Leidermark, Daniel, Mikael Segersäll, Johan Moverare, and Kjell Simonsson. "Modelling of TMF Crack Initiation in Smooth Single-Crystal Superalloy Specimens." Advanced Materials Research 891-892 (March 2014): 1283–88. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.1283.

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In this paper the TMF crack initiation behaviour of the single-crystal nickel-base superalloyMD2 is investigated and modelled. TMF tests were performed in both IP and OP for varying mechanicalstrain ranges in the [001] crystallographic direction until TMF crack initiation was obtained. Acrystal plasticity-creep model was used in conjunction with a critical-plane approach, to evaluate thenumber of cycles to TMF crack initiation. The critical-plane model was evaluated and calibrated ata stable TMF cycle, where the effect of the stress relaxation had attenuated. This calibrated criticalplanemodel is able to describe the TMF crack initiation, taking tension/compression asymmetry aswell as stress relaxation anisotropy into account, with good correlation to the real fatigue behaviour.
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Somers, W. "1.9 Acrystal structure of interleukin 6: implications for a novel mode of receptor dimerization and signaling." EMBO Journal 16, no. 5 (March 1, 1997): 989–97. http://dx.doi.org/10.1093/emboj/16.5.989.

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Golovin, A. V., G. A. Khayrullina, B. Kraal, and А. М. Kopylov. "Identification of Novel RNA-Protein Contact in Complex of Ribosomal Protein S7 and 3’-Terminal Fragment of 16S rRNA in E. coli." Acta Naturae 4, no. 4 (December 15, 2012): 65–72. http://dx.doi.org/10.32607/20758251-2012-4-4-65-72.

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For prokaryotes in vitro, 16S rRNA and 20 ribosomal proteins are capable of hierarchical self- assembly yielding a 30S ribosomal subunit. The self-assembly is initiated by interactions between 16S rRNA and three key ribosomal proteins: S4, S8, and S7. These proteins also have a regulatory function in the translation of their polycistronic operons recognizing a specific region of mRNA. Therefore, studying the RNAprotein interactions within binary complexes is obligatory for understanding ribosome biogenesis. The non-conventional RNAprotein contact within the binary complex of recombinant ribosomal protein S7 and its 16S rRNA binding site (236 nucleotides) was identified. UVinduced RNAprotein cross-links revealed that S7 cross-links to nucleotide U1321 of 16S rRNA. The careful consideration of the published RNA protein cross-links for protein S7 within the 30S subunit and their correlation with the X-ray data for the 30S subunit have been performed. The RNA protein crosslink within the binary complex identified in this study is not the same as the previously found cross-links for a subunit both in a solution, and in acrystal. The structure of the binary RNAprotein complex formed at the initial steps of self-assembly of the small subunit appears to be rearranged during the formation of the final structure of the subunit.
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Tiu, C., G. Nicolae, and K. C. Tam. "Rheological properties of hydrophobically modified alkali-swellable acrysol emulsions." Journal of Polymer Research 3, no. 4 (October 1996): 201–9. http://dx.doi.org/10.1007/bf01493489.

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Hernández-Baltazar, E., G. A. Reyes-Sandoval, and J. Gracia-Fadrique. "Surface properties of an associative alkali soluble polymer (Acrysol TT-935)." Colloids and Surfaces A: Physicochemical and Engineering Aspects 238, no. 1-3 (May 2004): 113–22. http://dx.doi.org/10.1016/j.colsurfa.2004.02.025.

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Prajapati, Shailesh T., Hitesh H. Bulchandani, Dashrath M. Patel, Suresh K. Dumaniya, and Chhaganbhai N. Patel. "Formulation and Evaluation of Liquisolid Compacts for Olmesartan Medoxomil." Journal of Drug Delivery 2013 (October 21, 2013): 1–9. http://dx.doi.org/10.1155/2013/870579.

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Olmesartan medoxomil is an angiotensin type II receptor blocker, antihypertensive agent, administered orally. It is highly lipophilic (log P 5.5) and a poorly water-soluble drug with absolute bioavailability of 26%. The poor dissolution rate of water-insoluble drugs is still a major problem confronting the pharmaceutical industry. The objective of the present investigation was to develop liquisolid compacts for olmesartan medoxomil to improve the dissolution rate. Liquisolid compacts were prepared using Acrysol El 135 as a solvent, Avicel PH 102, Fujicalin and Neusilin as carrier materials, and Aerosil as coating material in different ratios. The interaction between drug and excipients was characterized by DSC and FT-IR studies, which showed that there is no interaction between drug and excipients. The powder characteristics were evaluated by different flow parameters to comply with pharmacopoeial limits. The dissolution studies for liquisolid compacts and conventional formulations were carried out, and it was found that liquisolid compacts with 80% w/w of Acrysol EL 135 to the drug showed significant higher drug release rates than conventional tablets. Amongst carriers used Fujicalin and Neusilin were found to be more effective carrier materials for liquid adsorption.
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Prajapati, Shailesh T., Harsh A. Joshi, and Chhaganbhai N. Patel. "Preparation and Characterization of Self-Microemulsifying Drug Delivery System of Olmesartan Medoxomil for Bioavailability Improvement." Journal of Pharmaceutics 2013 (September 24, 2013): 1–9. http://dx.doi.org/10.1155/2013/728425.

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Olmesartan medoxomil (OLM) is an angiotensin II receptor blocker (ARB) antihypertensive agent administered orally that has absolute bioavailability of only 26% due to the poor aqueous solubility (7.75 μg/ml). The aim of the present investigation was to develop a self-microemulsifying drug delivery system (SMEDDS) to enhance the oral absorption of OLM. The solubility of OLM in various oils, surfactants, and cosurfactants was determined. Pseudoternary phase diagrams were constructed using Acrysol EL 135, Tween 80, Transcutol P, and distilled water to identify the efficient self-microemulsification region. Prepared SMEDDS was further evaluated for its emulsification time, drug content, optical clarity, droplet size, zeta potential, in vitro dissolution, and in vitro and ex vivo drug diffusion study. The optimized formulation S2 contained OLM (20 mg), Tween 80 (33%v/v), Transcutol P (33%v/v), and Acrysol EL 135 (34%v/v) had shown the smallest particle size, maximum solubility, less emulsification time, good optical clarity, and in vitro release. The in vitro and ex vivo diffusion rate of the drug from the SMEDDS was significantly higher than that of the plain drug suspension. It was concluded that SMEDDS would be a promising drug delivery system for poorly water-soluble drugs by the oral route.
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Ashara, Kalpesh C., Jalpa S. Paun, Moinuddin M. Soniwala, and Jayant R. Chavda. "Microemulgel of Voriconazole: an Unfathomable Protection to Counter Fungal Contagiousness." Folia Medica 59, no. 4 (December 20, 2017): 461–71. http://dx.doi.org/10.1515/folmed-2017-0051.

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AbstractBackground: Fluconazole and ketoconazole both have poor minimum inhibitory concentration than voriconazole. Voriconazole had serious side effects in oral and intravenous doses. It has poor water solubility. The objective of the study was to prepare and optimize microemulgel of voriconazole for topical delivery. Aim: Formulation, development, and evaluation of voriconazole microemulgel for topical delivery. Methods: Oil and emulsifi ers selected were on the basis of equilibrium solubility study and emulsification property respectively. The pseudo-ternary plot and constrained simplex lattice design were applied for preparation of microemulsions. Microemulsions were subjected to micelle size, zeta potential, polydispersity index, and in vitro study. They were optimized by Design-Expert®9.0.3.1 software. Formulation, development, evaluation and optimization of microemulgel were carried out. Microbial assay of an optimized batch of microemulgel was performed. Results: Solubility of voriconazole in Parker Neem®oil was 7.51±0.14 mg/g. Acrysol™K-150: PEG-400 in 4:1 ratio had the highest area for microemulsion. 59.2% Acrysol™K-150, 14.8% PEG-400, 11% Parker Neem®oil, 15% rose water, and 1% voriconazole as an optimized batch of microemulsion was selected for preparation of microemulgel. Carbomer 934P found a good gelling agent in 0-2% w/w concentration. An optimized batch of microemulgel had 0.974 desirability value. An optimized batch of microemulgel and Nizral®cream had 37.32±0.63% and 26.45±0.63% zones of inhibition. Conclusion: Topical antifungal treatment was successfully achieved with voriconazole microemulgel.
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K, Mahalaxmi, and Sailu Ch. "Design, Optimization and Evaluation of Repaglinide Self-Nanoemulsifying Drug Delivery for Enhanced Solubility." International Journal of Pharmaceutical Sciences and Nanotechnology 10, no. 6 (November 30, 2017): 3920–28. http://dx.doi.org/10.37285/ijpsn.2017.10.6.8.

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The aim of study was to develop self-nanoemulsifying systems of poorly water-soluble drug repaglinide, which is an antidiabetic drug in the class of medications known as meglitinides. Solubility of repaglinide in oily phases and surfactants was determined to identify components of self-nanoemulsifying drug delivery system (SNEDDS). Surfactants and oil was selected based on solubility studies were further screened for their efficiency in formulation. Acrysol K 150, Kolliphor EL and Capmul MCM were selected as oil, surfactant and co-surfactant respectively. Formulation F8 was found to be optimized formulation on the basis of in vitro dissolution studies, particle size and zeta potential. The optimized formulation was then subjected to stability studies and was found to be stable after 6 months. Thus, SNEDDS were found to be influential in improving the release performance of repaglinide, indicating their potential to improve the solubility and oral bioavailability of repaglinide.
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Dissertations / Theses on the topic "Acrystal"

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Schlosserová, Jana. "Vratká společnost." Master's thesis, Vysoké učení technické v Brně. Fakulta výtvarných umění, 2014. http://www.nusl.cz/ntk/nusl-232419.

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The installation is formed from the fifth sculptures, individuals, larger than life size. Their bodies are just shapes and surfaces, which leave place for the rest of the human form. The form is preserved only in black-and-white photography, in portraits, which are part of the sculptures. They ostensibly do nothing, like stopping in time. However they move, but for that move is neccessary initial impetus and it is the role of the viewer. Instability of sculptures is an expression of the unstable position of the human beings in today's society (the origin of instability). Sculptures creates society thanks for their quantity, community and contact.
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