Academic literature on the topic 'Ionic aggregation'
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Journal articles on the topic "Ionic aggregation":
Williams, Claudine E., Thomas P. Russell, Robert Jerome, and Jacques Horrion. "Ionic aggregation in model ionomers." Macromolecules 19, no. 11 (November 1986): 2877–84. http://dx.doi.org/10.1021/ma00165a036.
Ghadamghahi, Maryam, Davood Ajloo, and Mahmood Moalem. "Kinetic studies on the self-aggregation of a non ionic porphyrin in the presence and absence of ionic liquid by molecular dynamics simulation." Journal of Porphyrins and Phthalocyanines 16, no. 10 (October 2012): 1082–93. http://dx.doi.org/10.1142/s1088424612500915.
Szilagyi, Istvan, Tamas Szabo, Anthony Desert, Gregor Trefalt, Tamas Oncsik, and Michal Borkovec. "Particle aggregation mechanisms in ionic liquids." Phys. Chem. Chem. Phys. 16, no. 20 (2014): 9515–24. http://dx.doi.org/10.1039/c4cp00804a.
KUBISA, PRZEMYSLAW, and TADEUSZ BIEDRON. "Aggregation of ionic endgroups in polymers." Polimery 41, no. 07/08 (July 1996): 398–405. http://dx.doi.org/10.14314/polimery.1996.398.
Akhter, M. Salim, and Sadiq M. Alawi. "Aggregation of ionic surfactants in formamide." Colloids and Surfaces A: Physicochemical and Engineering Aspects 173, no. 1-3 (November 2000): 95–100. http://dx.doi.org/10.1016/s0927-7757(00)00631-2.
Schulz, Peter S., Karola Schneiders, and Peter Wasserscheid. "Aggregation behaviour of chiral ionic liquids." Tetrahedron: Asymmetry 20, no. 21 (November 2009): 2479–81. http://dx.doi.org/10.1016/j.tetasy.2009.10.010.
Hossain, M. Tofazzal, and Yoichi Aso. "Buffers ionic strength on the chaperone-like activity (CLA) of silkworm small heat shock protein: sHSP19.9 and sHSP20.8." Journal of the Bangladesh Agricultural University 12, no. 2 (July 12, 2016): 241–49. http://dx.doi.org/10.3329/jbau.v12i2.28678.
Cheng, Shijing, Mingqiang Zhang, Tianyu Wu, Sean T. Hemp, Brian D. Mather, Robert B. Moore, and Timothy E. Long. "Ionic aggregation in random copolymers containing phosphonium ionic liquid monomers." Journal of Polymer Science Part A: Polymer Chemistry 50, no. 1 (October 14, 2011): 166–73. http://dx.doi.org/10.1002/pola.25022.
Borah, Priyanka, and Venkata S. K. Mattaparthi. "Effect of Ionic Strength on the Aggregation Propensity of Aβ1-42 Peptide: An In-silico Study." Current Chemical Biology 14, no. 3 (December 28, 2020): 216–26. http://dx.doi.org/10.2174/2212796814999200818103157.
Ogawa, Taku, Nobuhiro Yanai, Saiya Fujiwara, Thuc-Quyen Nguyen, and Nobuo Kimizuka. "Aggregation-free sensitizer dispersion in rigid ionic crystals for efficient solid-state photon upconversion and demonstration of defect effects." Journal of Materials Chemistry C 6, no. 21 (2018): 5609–15. http://dx.doi.org/10.1039/c8tc00977e.
Dissertations / Theses on the topic "Ionic aggregation":
Endeward, Burkhard, Marcelino Bernardo, Hans Thomann, and P. Brandt. "Ionic aggregation in metallocene olefin polymerization catalysts." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-194837.
Endeward, Burkhard, Marcelino Bernardo, Hans Thomann, and P. Brandt. "Ionic aggregation in metallocene olefin polymerization catalysts: a PFG NMR study." Diffusion fundamentals 3 (2005) 19, S. 1, 2005. https://ul.qucosa.de/id/qucosa%3A14310.
Chakraborty, Gulmi. "Studies on the Aggregation characteristics of selected surfactants and surface active ionic liquids." Thesis, University of North Bengal, 2017. http://ir.nbu.ac.in/handle/123456789/2620.
Ding, Hao. "Influence of solution ionic strength on aggregation of novel water soluble phosphines and two phase catalysis." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-10042006-143900/.
Metzman, Jonathan Seth. "Nanoparticle Encapsulation and Aggregation Control in Anti-reflection Coatings and Organic Photovoltaics." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/85580.
Ph. D.
Investigations are presented on the quality of distribution or dispersion of functional inorganic (composed of silicon dioxide or silver) particles that have dimensions of less than 100 nanometers, called nanoparticles. The nanoparticle surfaces were covered with polymer layers, where polymers are organic materials with repeating molecular structures. The study of these nanoparticle distribution effects were first examined in anti-reflection coatings (ARCs). ARCs induce transparency of windows or glasses through a reduction in the reflection of light. Here, the ARCs were fabricated as self-assembled thin-films (films with thicknesses ranging from 1 to 2000 nanometers). The self-assembly process here was carried out by immersing a charged substrate (microscope slide) into a solution with an oppositely-charged material. The attraction of the material to the substrate leads to thin-film growth. The process can continue by sequentially immersing the thin-film into oppositely-charged solutions for a desired number of thin-film layers. This technique is called ionic self-assembled multilayers (ISAMs). ARCs created by ISAM with charged polymers (polyelectrolytes) and silicon dioxide nanoparticles (SiO2 NPs) can lead to highly-transparent films, but unfortunately, they lack the stability and scratch-resistance necessary for commercial applications. In this dissertation, we address the lack of stability in the ISAM ARCs by adding additional polyelectrolyte layers that can develop strong, covalent bonds, while also examining nanoparticle dispersive properties. First, SiO2 NP surfaces were coated in solution with a polyelectrolyte called diazo-resin, which can form covalent bonds by UV-light exposure of the film. After tuning the concentration for the added diazo-resin, the coated SiO2 NPs were used to make ARCs ISAM films. The ARCs had excellent nanoparticle dispersion, high levels of transparency, and chemical stability. Chemically stability entails that the integrity of the film was unaffected by exposure to polar organic solvents or strong polyelectrolytes. In a second method, two additional v polyelectrolyte layers were added into the original polyelectrolyte/SiO2 NP design. Here, heating of the film to 200 oC temperatures induced strong covalent bonding between the polyelectrolytes. Variation of the solution pH dramatically changed the polyelectrolyte thickness, the nanoparticle dispersion, the scratch-resistance, and the anti-reflection. An optimum trade-off was discovered at a pH of 5.2, where the anti-reflection was excellent (amount of transmitted light over 99%), along with a substantially improved scratch-resistance. A change of pH from 6.0 (highest tested pH) to 5.2 (optimal) caused a difference in the scratch-resistance by a factor of seven. In these findings, we introduce stability enhancing properties from films composed purely of polyelectrolytes into nanoparticle-containing ISAM films. We also show that a simple adjustment of solution parameters, such as the pH value, can cause substantial differences in the film properties. Nanoparticle dispersion properties were next investigated in organic photovoltaics (OPVs) OPVs use semiconducting polymers to convert sunlight into usable electricity. They have many advantages over traditional solar cells, including their simple processing, low-cost, flexibility, and lightweight. However, OPVs are limited by their total optical absorption or the amount of light that can potentially be converted to electricity. The addition of plasmonic nanoparticles into an OPV device is a suitable way to increase optical absorption without changing the other device properties. Plasmonic nanoparticles, which are composed of noble metals (such as silver or gold), act as “light antennas” that concentrate incoming light and radiate it around the particle. In this dissertation, we investigate the dispersion and stability effects of polymer or metallic layers on silver nanoplates (AgNPs). The stability of the AgNPs was found to be greatly enhanced by coating the nanoparticle edges with a thin gold layer (AuAgNPs). AuAgNPs could then be introduced into a conductive, acidic layer of the OPVs (PEDOT:PSS) to increase the overall light absorption, which otherwise would be impossible with uncoated AgNPs. Next, the AgNPs were distributed on top of the photoactive layer or the layer that is responsible for absorbing light. Coating the AgNPs with a polystyrene polymer layer (PS-AgNPs) allowed for excellent dispersion on this layer and contrastingly, dispersion of the uncoated AgNPs was poor. An increased amount PS-AgNPs added on top of the photoactive layer progressively increased the optical absorption of the OPV devices. However, trends were quite different for the power conversion efficiency or the ratio of electricity power to sunlight power in the OPV device. The greatest PCE enhancements (27 – 32%) were found at a relatively low coverage level (using a solution concentration of 0.29 to 0.57 nM) of the PS-AgNPs on the photoactive layer.
Knowles-Van, Cappellen Victoria Leilani. "The effects of ionic strength and aggregation on crystal growth kinetics : an application of photon correlation spectroscopy." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/20786.
Madenci, Dilek. "Study of the aggregation behaviour of egg yolk lecithin/bile salt mixtures by increasing the ionic strength." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/4918.
Gauthier, Mario. "The effects of matrix glass transition temperature and polarity, and ionic group spacers on ion aggregation in styrene ionomers /." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75935.
Buell, Alexander Kai. "On the kinetics of protein misfolding and aggregation." Thesis, University of Cambridge, 2011. https://www.repository.cam.ac.uk/handle/1810/270324.
Andreiuk, Bohdan. "Self-assembly of ionic fluorescent dyes inside polymer nanoparticles : engineering bright fluorescence and switching." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAF027/document.
Encapsulation of ionic dyes with help of bulky hydrophobic counterions into polymer nanomaterials emerged as powerful method for generating ultrabright fluorescent nanoparticles (NPs) for bioimaging. Here, this counterion-based approach is extended to cyanine dyes, operating from blue to near-infrared range. Based on cyanine-loaded NPs, a multicolour cell barcoding method for long-term cell tracking is developed. Second, the role of bulky hydrophobic counterion in self-assembly of cationic dyes inside polymeric NPs is studied by testing a large library of anions. We show that high hydrophobicity of a counterion enhances dye encapsulation, prevents particle aggregation and tunes dye clustering, while large size prevents dyes from self-quenching. Third, counterions based on aluminates and barbiturates are shown to outperform fluorinated tetraphenylborates. This work provides a solid basis for counterion-enhanced encapsulation and emission concept in preparation of dye-loaded fluorescent NPs
Books on the topic "Ionic aggregation":
Jolivet, Jean-Pierre. Metal Oxide Nanostructures Chemistry. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190928117.001.0001.
Book chapters on the topic "Ionic aggregation":
Wang, Jianji, and Huiyong Wang. "Aggregation in Systems of Ionic Liquids." In Structure and Bonding, 39–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38619-0_2.
Zhou, Ting, and Guiying Xu. "Aggregation Behavior of Ionic Liquid-Based Gemini Surfactants and Their Interaction with Biomacromolecules." In Ionic Liquid-Based Surfactant Science, 127–49. Hoboken, NJ: John Wiley & Sons, Inc, 2015. http://dx.doi.org/10.1002/9781118854501.ch6.
Magny, B., I. Iliopoulos, and R. Audebert. "Aggregation of Hydrophobically Modified Polyelectrolytes in Dilute Solution: Ionic Strength Effects." In Macromolecular Complexes in Chemistry and Biology, 51–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78469-9_4.
Espinosa-Marzal, Rosa M., and Zachary A. H. Goodwin. "Colloidal Interactions in Ionic Liquids—The Electrical Double Layer Inferred from Ion Layering and Aggregation." In ACS Symposium Series, 123–48. Washington, DC: American Chemical Society, 2023. http://dx.doi.org/10.1021/bk-2023-1457.ch007.
Kalugin, Oleg N., Anastasiia V. Riabchunova, Iuliia V. Voroshylova, Vitaly V. Chaban, Bogdan A. Marekha, Volodymyr A. Koverga, and Abdenacer Idrissi. "Transport Properties and Ion Aggregation in Mixtures of Room Temperature Ionic Liquids with Aprotic Dipolar Solvents." In Springer Proceedings in Physics, 67–109. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61109-9_5.
Driess, Matthias, Robert E. Mulvey, and Matthias Westerhausen. "Cluster Growing Through Ionic Aggregation: Synthesis and Structural Principles of Main Group Metal-Nitrogen, Phosphorus and Arsenic Rich Clusters." In Molecular Clusters of the Main Group Elements, 391–424. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527602445.ch3f.
"Structure Aggregation." In Encyclopedia of Ionic Liquids, 1209. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-33-4221-7_300022.
Rogers, Michael A. "Self-assembled Fibrillar Networks of Low Molecular Weight Oleogelators." In Edible Nanostructures, 144–78. The Royal Society of Chemistry, 2014. http://dx.doi.org/10.1039/bk9781849738958-00144.
Padinhattath, Sachind Prabha, Baiju Chenthamara, Jitendra Sangwai, and Ramesh L. Gardas. "Ionic Liquids in Advanced Oil Dispersion." In Ionic Liquids for Environmental Issues, 272–92. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781839169625-00272.
Griffin, M. C. A., J. C.Price, and W. G.Griffin. "The heat-induced aggregation of β-lactoglobulin A: photon correlation spectroscopy studies." In Gums and stabilisers for the Food industry 6, 525–29. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780199632848.003.0066.
Conference papers on the topic "Ionic aggregation":
Mattedi, S., M. Martin-Pastor, M. Iglesias, Muhammed Hasan Aslan, Ahmet Yayuz Oral, Mehmet Özer, and Süleyman Hikmet Çaglar. "Structural and Aggregation Study of Protic Ionic Liquids." In INTERNATIONAL CONGRESS ON ADVANCES IN APPLIED PHYSICS AND MATERIALS SCIENCE. AIP, 2011. http://dx.doi.org/10.1063/1.3663104.
sohrabi, Beheshteh, ajin Jalali, and Ali Sharifi. "The ionic liquids counterion effect on their aggregation behavior." In The 17th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2013. http://dx.doi.org/10.3390/ecsoc-17-f005.
Lv, Xiaoxing, Kai Yue, Qingchun Lei, and Xinxin Zhang. "A Molecular Dynamics Simulation of Au Nanoparticles Aggregation in Ionic Solution." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17373.
Vijayaraghavan, Prasant, and Vishnu-Baba Sundaresan. "Investigating the Effect of Thermoelectric Processing on Ionic Aggregation in Thermoplastic Ionomers." In ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/smasis2017-3953.
Kumar, Harsh, Jasmeet Kaur, and Pamita Awasthi. "An analysis of the aggregation behaviour of an ionic liquid into water+ carbohydrate solutions – A review." In DIDACTIC TRANSFER OF PHYSICS KNOWLEDGE THROUGH DISTANCE EDUCATION: DIDFYZ 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0081213.
Turton, David A., Johannes Hunger, Alexander Stoppa, Glenn Hefter, Andreas Thoman, Markus Walther, Richard Buchner, and Klaas Wynne. "Terahertz dynamics of ionic liquids from a combined dielectric relaxation, terahertz, and optical Kerr effect study: evidence for mesoscopic aggregation." In OPTO, edited by Laurence P. Sadwick and Creidhe M. M. O'Sullivan. SPIE, 2010. http://dx.doi.org/10.1117/12.840185.
Biggs, Simon, Michael Fairweather, Timothy Hunter, Qanitalillahi Omokanye, and Jeffrey Peakall. "Engineering Properties of Nuclear Waste Slurries." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16378.
Selak, M. A., M. Chignard, and J. B. Smith. "CHARACTERIZATION OF A NEUTROPHIL CPYMOTRYPSIN-LIKE ENZYME THAT ACTIVATES PLATELETS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643157.
Romanin, Vincent D., and Sonia Fereres. "A Meta-Analysis of the Specific Heat Enhancement of Nanofluids." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37951.
Lamsal, Buddhi, and Bibek Byanju. "Processing opportunities and challenges for plant-based proteins." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/cjmp7212.
Reports on the topic "Ionic aggregation":
Chefetz, Benny, Baoshan Xing, Leor Eshed-Williams, Tamara Polubesova, and Jason Unrine. DOM affected behavior of manufactured nanoparticles in soil-plant system. United States Department of Agriculture, January 2016. http://dx.doi.org/10.32747/2016.7604286.bard.