Michal Fulem

Covalently crosslinked hydroxypropyl allyl cellulose–polyaniline aerogels with compression-dependent impedance response

Alexandra Hlavacova, Anton Iemtsev, Alma Lucia Villela Zumaya, Gabriela Čandová et autres

Electrically responsive and mechanically compliant materials are essential for the development of pressure sensors for wearable electronics and soft robotic systems. However, many cellulose-based conductive hydrogels and aerogels rely on physically stabilized or water-rich networks, which may suffer from swelling, evaporation, ion …

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Thermodynamic Properties of HFE-7300

Štefan Kocian, Erwin Knöbel, Sebastian Klink, Olga Prokopová et autres

Abstract Hydrofluoroethers (HFEs) are considered promising replacements for the high global warming potential (GWP) per- and polyfluoroalkyl substances (PFAS) in refrigeration, heat transfer, and electronic cooling applications. However, the scarcity and inconsistency of available thermophysical property data have hindered their reliable implementation …

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Tailoring poly(2-oxazoline)s for drug delivery: predicting API compatibility via COSMO-RS

Alžběta Zemánková, Alex Mathers, Fatima Hassouna, Michal Fulem

This study evaluates the ability of the Conductor-like Screening Model for Real Solvents (COSMO-RS) to predict the solubility of naproxen (NAP) in three in-house synthesized poly(2-oxazoline)s (POx)—poly(2-ethyl-2-oxazoline) (PEtOx), poly(2- n -butyl-2-oxazoline) (PBuOx), and poly(2-phenyl-2-oxazoline) (PPhOx)—and to assess the effect of their side-chain …

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Membrane Polymers for the Pervaporative Separation of Polar Organics: Methanol and Acetonitrile

Jordan Janák, Jan Polena, Tereza Simsova, Jonatan Šercl et autres

ABSTRACT Methanol (MeOH) and acetonitrile (MeCN) are highly polar organic compounds occurring in HPLC waste eluates. Neither of them is evidently more hydrophilic, which renders their pervaporative separation unusual. To identify suitable membrane materials, the pervaporation of MeOH‐MeCN mixtures having composition near …

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Architectural Control of Mechanical Compressibility and Electrical Conductivity in Covalently Crosslinked Cellulose–Polyaniline Aerogels

Alexandra Hlavacova, Anton Iemtsev, Alma Lucia Villela Zumaya, Gabriela Soukupová et autres

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BEST-CSP Benchmark Study of Polymorphs I and II of Sulfamerazine and the Perils of Polytype Polymorphs

William R. D. Wood, Mihails Arhangelskis, Erika Bartůňková, Carlos E. S. Bernardes et autres

High Resolution Image Download MS PowerPoint Slide We report the outcome of an interdisciplinary investigation, by the BEST-CSP network, of the kinetically favored form I and the low-temperature stable form II polymorphs of the drug sulfamerazine (SMZ). Form II can be reproducibly …

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Vapor Pressure of Selected Aliphatic Hexanols by Static and Indirect Chromatographic Methods

Vojtěch Štejfa, Pavel Šimáček, Bohumı́r Koutek, Michal Fulem et autres

Vapor pressures of eight aliphatic hexanols ((±)-3-hexanol, CAS RN: 623-37-0; 2-methyl-2-pentanol, CAS RN: 590-36-3; (±)-2-methyl-3-pentanol, CAS RN: 565-67-3; (±)-3-methyl-2-pentanol, CAS RN: 565-60-6; 3-methyl-3-pentanol, CAS RN: 77-74-7; 2,2-dimethyl-1-butanol, CAS RN: 1185-33-7; 2,3-dimethyl-2-butanol, CAS RN: 594-60-5; and (±)-3,3-dimethyl-2-butanol, CAS RN: 464-07-3) were measured by …

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A Parameter-Fitted PC-SAFT Framework for Solubility Extrapolation in Drug–Polymer Systems

Alex Mathers, Michal Fulem

High Resolution Image Download MS PowerPoint Slide Accurate modeling of drug–polymer solubility is essential for the rational design of amorphous solid dispersions and other advanced pharmaceutical formulations. The perturbed-chain statistical associating fluid theory (PC-SAFT) equation of state has emerged as a robust …

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Design of paclitaxel-loaded PLGA nanoparticles assisted by compatibility modeling

Alžběta Zemánková, Anton Iemtsev, Martin Dinh, Alma Lucia Villela Zumaya et autres

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Compatibility assessment of drug–poly(2-oxazoline) systems: COSMO-RS modeling and experimental validation

Alex Mathers, Kirill Terentev, Fatima Hassouna, Michal Fulem

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Sublimation Pressure and Heat Capacity of Dimethylsilanediol

Michal Fulem, Vojtěch Štejfa, Květoslav Růžička, Michael Molnar

Abstract Dimethylsilanediol (DMSD, CAS RN: 1066-42-8) is used as an intermediate in the synthesis of organosilicon compounds and is also an intermediate degradation product of these compounds in the environment. As volatility is a key property for assessing the fate of chemicals …

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The Current Development and Outlook for the Use of Low Environmental Impact Diesel Fuels/Additives

Bohumı́r Koutek, Jiří Šturala, Vojtěch Štejfa, Michal Fulem et autres

The article explores the advancements and future prospects of using low-environmental-impact diesel fuels and additives to mitigate the environmental effects of internal combustion engines. It emphasizes the challenges posed by rising CO2 levels and the need to transition away from fossil fuels …

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