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Search results for: Pharmaceutical cocrystals
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Infrared Stimulated Luminescence of Ce3+ Doped YAG Crystals
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LITHIUM FLUORIDE CRYSTALS AS FLUORESCENT NUCLEAR TRACK DETECTORS
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Layer contraction of smectic liquid crystals and the compensation model
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Manganese Distribution in CdMnTeSe Crystals. EXAFS Data Analysis
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The first order phase transition and superconductivity in BaNi2As2single crystals
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Structural properties of superconducting PrBa2Cu3O7−δ single crystals
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Thermochromic liquid crystals applied for heat transfer research
PublicationAutorzy opisali własne wieloletnie doświadczenia z badań wymiany ciepła, w których wykorzystali termochromatyczne ciekłe kryształy. Obejmowały one badania przepływów w kanałach o różnorakiej konfiguracji, badania w przestrzeniach zamkniętych oraz podczas zmiany stanu skupienia badanego płynu.
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The use of thermochromic liquid crystals in heat transfer research
PublicationW ostatnich latach ciekłe kryształy zostały z powodzeniem zastosowane do wizualizacji pola temperatury w stanach ustalonych i przejściowych na różnych powierzchniach. Analiza otrzymanych obrazów początkowo była skomplikowana, ale dzięki zastosowaniu obróbki komputerowej pomiary stały się o wiele dokładniejsze i szybsze. W opracowaniu przedstawiono przegląd badań, w których zastosowano automatyczną technikę analizy obrazów, a prowadzone...
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Stone cutting industry waste-supported zinc oxide nanostructures for ultrasonic assisted decomposition of an anti-inflammatory non-steroidal pharmaceutical compound
PublicationPowdered stone waste (PSW) obtained from a stone cutting industrial unit was applied as support for the immobilization of nano-sized ZnO to be utilized as an effective catalyst for the catalytic conversion of acetaminophen (ACE) under ultrasonication. The incorporation of ZnO nanostructures into PSW structure enhanced the specific surface area and pore volume of the as-prepared nanocompound. The change in the value of zero point...
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Chemometric outlook on correlations between retention parameters of polar and semipolar HPLC columns and physicochemical characteristics of ampholytic substances of biological and pharmaceutical relevance
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Chemometric approach to correlations between retention parameters of non-polar HPLC columns and physicochemical characteristics for ampholytic substances of biological and pharmaceutical relevance
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Genotoxicity of selected pharmaceuticals, their binary mixtures, and varying environmental conditions – study with human adenocarcinoma cancer HT29 cell line
PublicationPharmaceutical residues are present in the environment in mixtures and their adverse effects may also result from interactions that occur between compounds. Studies presented in this work focus on genotoxicity of pharmaceuticals from different therapeutic groups in mixtures and in individual solutions impacted with different environmental conditions assessed using comet assay (alkaline approach). Binary mixtures of pharmaceuticals...
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Pharmaceuticals and other contaminants of emerging concern in Admiralty Bay as a result of untreated wastewater discharge: Status and possible environmental consequences
PublicationConsidering how the impact of human activity in Antarctica is growing, the aim of this study was to conduct the first assessment of pharmaceuticals and personal care products (PPCPs), other emerging contaminants (ECs), and antibiotic resistance genes present in the western shore of the Admiralty Bay region of King George Island. In total, more than 170 substances were evaluated to assess the potential environmental risks they pose...
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Determination of flavanols by liquid chromatography with fluorescence detection. Application to the characterization of cranberry-based pharmaceuticals through profiling and fingerprinting approaches
PublicationIn this work, a new method based on reversed-phase high-performance liquid chromatography (HPLC) with fluorescence detection (FLD) was established for the determination of catechins and related oligomeric proanthocyanidins (PACs) in cranberry-based pharmaceuticals. Compounds were recovered by liquid extraction using methanol/water/hydrochloric acid (60:39:1, v:v:v) as the extraction solvent. The chromatographic separation was carried...
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Evaluation the environmental fate of pharmaceuticals using a level III model based on poly-parameter linear free energy relationships
PublicationOpisano możliwości zastosowania modelu ''Level III Model'' do opisu losu środowiskowego pozostałości farmaceutyków w środowisku. Zastosowany model umożliwia oszacowanie trwałości, stężeń oraz transportu poszczególnych zanieczyszczeń pomiędzy poszczególnymi elementami składowymi środowiska (powietrze, woda, gleba i osady denne).
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Studies on the orientation effect of crystallites and its application to cocrystal screening of selected pharmacologically active compounds
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A Novel Electrochemical Sensor Based on Graphene Oxide Nanosheets and Ionic Liquid Binder for Differential Pulse Voltammetric Determination of Droxidopa in Pharmaceutical and Urine Samples
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High-accuracy polarimetric studies on lead germanate single crystals
PublicationA high-accuracy polarimetric technique has been used for the characterization of a lead germanate ferroelectric single crystal. The measurement results of the linear and circular birefringence in the [010] direction at a wavelength of 633 nm under the influence of an electric field are presented. Gyration–electric field hysteresis loops at alternative crystal positions in the polarization system have been used to determine the...
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Perspectives for high resolution and high light output LuAP:Ce crystals
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Luminescence and energy-storage properties of Pr3+-doped YAlO3 crystals
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Two-dimensional thermoluminescence method for checking LiF crystals homogeneity
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OSL and RL of LiMgPO4 crystals doped with rare earth elements
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Analysis of TL and OSL kinetics in lithium magnesium phosphate crystals
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The influence of the temperature treatment on the Nd2-xCexCuO4-y crystals surface
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The first order phase transition and superconductivity in BaNi2As2 single crystals
PublicationDyskutowane są synteza i właściwości fizyczne monokryształów BaNi2As2. BaNi2As2 krystalizuje w strukturze ThCr2Si2, a stałe sieciowe wynoszą odpowiednio: a = 4.112(4) A i c = 11.54(2) A. Pomiar oporu elektrycznego, zmiennopolowej podatności magnetycznej, ciepła właściwego, pokazują objętościowy efekt nadprzewodzący z Tc = 0.7 K.
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Pressure dependence of electron-phonon coupling inCe3+-dopedGd3Sc2Al3O12garnet crystals
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Photoluminescence Kinetics of YAG Crystals Activated with Ce, and Ce and Mg
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Pharmaceuticals wastewater treatment via different advanced oxidation processes: Reaction mechanism, operational factors, toxicities, and cost evaluation – A review
PublicationPharmaceuticals comprises different drugs used for treating different infections in human being and animals. The huge quantities of pharmaceuticals used are found to discharge into different water resources and cause different health and environmental problems. The continuous and large-scale discharge of pharmaceuticals increases their persistency which can consequently make them more toxic. The different advanced oxidation processes...
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Ecotoxicological equilibria of triclosan inMicrotox, XenoScreen YES/YAS, Caco2, HEPG2 and liposomal systems are affected by the occurrence of other pharmaceutical and personal care emerging contaminants
PublicationContaminants of emerging concernmay be considered as any chemicals or factorswhose unintended continuous release and persistence in the environmentmay lead to any observable undesirable response of living beings. Still not much is known on reciprocal toxicological impact of given chemicals when present in binary or more complex mixtures. In thiswork, an attemptwas thus undertaken to study the impact of butylparaben,methylparaben and...
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Determination of pharmaceutical residues in drinking water in Poland using a new SPE-GC-MS(SIM) method based on Speedisk extraction disks and DIMETRIS derivatization
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Determination of mefenamic acid in urine and pharmaceutical samples by HPLC after pipette-tip solid phase microextraction using zinc sulfide modified carbon nanotubes
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The possibility to use multi-walled carbon nanotubes as a sorbent for dispersive solid phase extraction of selected pharmaceuticals and their metabolites: Effect of extraction condition
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The treatment of wastewater containing pharmaceuticals in microcosm constructed wetlands: the occurrence of integrons (int1–2) and associated resistance genes (sul1–3, qacEΔ1)
PublicationThe aim of this study was to analyze the occurrence of sulfonamide resistance genes (sul1–3) and other genetic elements as antiseptic resistance gene (qacEΔ1) and class 1 and class 2 integrons (int1–2) in the upper layer of substrate and in the effluent of microcosm constructed wetlands (CWs) treating artificial wastewater containing diclofenac and sulfamethoxazole (SMX), which is a sulfonamide antibiotic. The bacteria in the substrate...
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Optical and Electrical Properties of Iodine Doped n-Type ZnSe Crystals
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Fluorescent imaging of heavy charged particle tracks with LiF single crystals
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TL, OSL and RL emission spectra of RE-doped LiMgPO4 crystals
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Luminescent properties of LiF crystals for fluorescent imaging of nuclear particles tracks
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Comparative studies on OSL properties of LiMgPO4:Tb,B powders and crystals
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Intrinsic and defect-related luminescence of YAlO3 and LuAlO3 single crystals and films
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Chiral crystals from porphyrinoids possessing a very low racemization barrier
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Crystal growth and the influence of oxygen stoichiometry on electrical resistivity of single crystals
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A resistivity peak close to Tc in Nd2−xCexCuO4−y single crystals
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Modelling of optical components made of liquid crystals and liquid crystalline polymers
PublicationW artykule przedstawiono koncepcję wykorzystania ciekłych kryształów i polimerów ciekłokrystalicznych do budowy dwójłomnych elementów optycznych - płytek opóźniających, pryzmatów Wollastona i Nomarskiego. Przedstawiono wyniki modelowania pryzmatów Nomarskiego wykonanych z polimerów ciekłokrystalicznych i dokonano porównania ich właściwości z właściwościami pryzmatów wykonanych z typowych materiałów dwójłomnych.
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Global Optimization-Based Method for Deriving Intermolecular Potential Parameters for Crystals
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Formation and Near-Infrared Emission of CsPbI3 Nanoparticles Embedded in Cs4PbI6 Crystals
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A resistivity peak close to Tc in Nd2-xCexCuO4-y single crystals.
PublicationW pracy dyskutowane jest maximum oporu elektrycznego występujące tuż powyżej temperatury przejścia nadprzewodzącego. Maksimum jest obserwowane tylko przy jednej z dwóch możliwych konfiguracji pomiarowych w metodzie van der Pauw.Proponowany, na bazie niejednorodności składu ceru, prosty model wyjaśnia w pełni pochodzenie efektu.
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The effects of growth conditions on superconducting properties of Nd1Ba2Cu3O7-ë single crystals.
PublicationW pracy przedstawiono rezultaty badan wpływu warunków wzrostu kryształów Nd1Ba2Cu3O7-d na ich własności nadprzewodzące. Kryształy hodowano metodą spontanicznego wzrostu z fazy ciekłej. Mikrostruktura kryształów została zbadana skaningowym mikroskopem elektronowym oraz skaningowym mikroskopem tunelowym. Własności nadprzewodzące badano przeprowadzając pomiary momentu magnetycznego w funkcji temperatury.W przypadku badanych kryształów...
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Investigations of the optical activity of nonlinear crystals by means of dual-wavelength polarimeter
PublicationA dual-wavelength method in high accuracy polarimetry has been successfully tested and applied to measure optical activity (OA) of nonlinear crystals. In proposed polarimetric scheme two neighboring semiconductor laser wavelengths (635 and 650 nm) are used, which increases number of parameters measured simultaneously and improves the data processing. By neglecting dispersion of eigen wave ellipticity in crystals, more efficient...
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Liquid Crystals, PIV and IR-Photography in Selected Technical and Biomedical Applications
PublicationThermochromic liquid crystals (TLC), Particle Image Velocimetry (PIV), Infrared Imaging Themography (IR) and True-Colour Digital Image Processing (TDIP) have been successfully used in non-intrusive technical, industrial and biomedical studies and applications. These four tools (based on the desktop computers) have come together during the past two decades to produce a powerful advanced...
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New approach based on solid-phase extraction for the assessment of organic compound pollutions in so-called pharmaceutically pure water
PublicationOpisano mozliwość zastosowania nowej procedury analitycznej opartej na wykorzystaniu techniki ekstrakcji do fazy stałej (na etapie izolacji i wzbogacania analitów) do oznaczania śladowych ilości zanieczyszczeń organicznych w wodzie specjalnej czystości używanej do celów farmaceutycznych.Próbka badanej wody jest przepuszczana przez złoże sorbenta, które jest osuszane za pomocą strumienia oczyszczonego powietrza, przed etapem termicznej...