Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Pluta, Janusz" wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Investigation of fenofibrate solubility in the presence of chitosan
Autorzy:
Grimling, Bożena
Meler, Jan
Pluta, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1035391.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
dissolution
fenofibrate
solid state
Opis:
Fenofibrate is an active substance which is well absorbed from the gastrointestinal tract, but it is characterized by limited solubility. Due to a wide spectrum of its pharmacological activity, it would be beneficial to improve its solubility, and thus increase the drug absorption capability. The aim of the study was to investigate the effect of chitosan on the solubility of fenofibrate incorporated into this polymer carrier. The study investigated fenofibrate in solid dispersions at the drug to polymer ratio of 3:7,5:5,7:3. The solubility investigation was performed by means of a dynamic method in a dissolution apparatus; mean amount of dissolved fenofibrate and the drug to polymer quantitative ratio in which the solid dispersion possessed the most beneficial properties improving the drug solubility were calculated. The study revealed a multi-fold increase (from 33 to 50 times) in fenofibrat solubility in the presence of chitosan, which increased with duration of the study and with increasing percentage of the polymer in formulations. The obtained results may help develop new technologies for fenofibrate preparations with chitosan, with better solubility characteristics, and thus increased bioavailability of the drug.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2012, 17; 79-86
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technology of preparation and evaluation of ketoprofen-chitosan solid dispersion
Autorzy:
Grimling, Bożena
Szcześniak, Maria
Meler, Jan
Pluta, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1035182.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
dissolution
ketoprofen
molecular weight of the chitosan
solid state
Opis:
The aim of the study was to investigate the effect of chitosan on the dissolution of ketoprofen incorporated into this polymer carrier. The study investigated ketoprofen in physical mixtures at the drug to polymer ratios of 1:9, 3:7, and 5:5. The solubility investigation was performed by means of a dynamic method in a dissolution apparatus; the mean amount of dissolved ketoprofen and the drug to polymer quantitative ratio in which the solid dispersion possessed the most beneficial properties improving the drug solubility were calculated. The study revealed a multifold increase (33 times) in ketoprofen solubility in the presence of chitosan, which increased with duration of the study and with increasing percentage of the polymer in formulations. The dissolution rates of ketoprofen in the presence of chitosan at the weight ratio 1:9 increased with the decrease of the molecular weight of the chitosan. The results obtained may help to develop new technologies for ketoprofen preparations with chitosan, with better solubility characteristics, and thus increased bioavailability of the drug.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2014, 19; 15-22
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of physicochemical properties of solid dispersions of bcs class ii substances with chitosan
Autorzy:
Grimling, Bożena
Górniak, Agata
Meler, Jan
Pluta, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1035366.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
DSC studies
chitosan
dissolution
fenofibrate
solid state lyophilisation
Opis:
The BCS class II includes drugs with low solubility and high permeability. The substances require modification to increase their solubility in the upper part of the digestive system. Fenofibrate is an example of this class drugs. The aim of the study was to investigate the effect of chitosan on the solubility of fenofibrate incorporated into this polymer carrier. The study investigated fenofibrate in solid dispersions using a method of the solvent evaporation by means of freeze-drying at the drug to polymer ratio of 3:7,5:5,7:3. The study revealed a multi-fold increase (from 33 to 57 times) in fenofibrat solubility in the presence of chitosan, which increased with duration of the study and with increasing percentage of the polymer in formulations. DSC examination revealed a possible physical interaction between the drug and the polymer. The degree of lowering of temperature and increased heat effects is correlated with increased solubility of the drug in all the formulations. DSC studies confirmed that fenofibrate is present in solid dispersions in a crystalline form.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2012, 17; 87-94
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of fenofibrate dissolution rate incorporated on solid dispersions into chitosan
Autorzy:
Grimling, Bożena
Szcześniak, Maria
Meler, Jan
Pluta, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1035351.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
dissolution
fenofibrate
molecular weight of the chitosan
solid state
Opis:
The aim of the study was to investigate the effect of chitosan on the dissolution of fenofibrate incorporated into this polymer carrier. The study investigated fenofibrate in physical mixtures at the drug to polymer ratio of 1:9, 3:7, and 5:5. The solubility investigation was performed by means of a dynamic method in a dissolution apparatus; mean amount of dissolved fenofibrate and the drug to polymer quantitative ratio in which the solid dispersion possessed the most beneficial properties improving the drug solubility were calculated. The study revealed a multi-fold increase (from 13 to 70 times) in fenofibrate solubility in the presence of chitosan, which increased with duration of the study and with increasing percentage of the polymer in formulations. The dissolution rates of fenofibrate in the presence of chitosan at the weight ratio 1:9 increased with the increment of the molecular weight of the chitosan. The obtained results may help develop new technologies for fenofibrate preparations with chitosan, with better solubility characteristics, and thus increased bioavailability of the drug.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2013, 18, 18; 149-156
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The study of physicochemical properties of solid dispersions of ibuprofen in the presence of chitosan
Autorzy:
Grimling, Bożena
Meler, Jan
Szcześniak, Maria
Pluta, Janusz
Górniak, Agata
Powiązania:
https://bibliotekanauki.pl/articles/1034797.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
dissolution
ibuprofen
solid dispersion
Opis:
The aim of the present study was to increase the solubility of ibuprofen. Among the methods to increase the solubility selected solid dispersions of the drug with the polymer. Chitosan was used as the polymer. Solid dispersion obtained. Ibuprofen was incorporated into the chitosan type 652 with molar masse chitosan Mη = 429 kDa. Solid dispersions were prepared by using different ratios of ibuprofen and chitosan (1:9. 3:7 and 5:5). Formulations were tested dissolution rate of the ibuprofen. The highest dissolution of ibuprofen, amounting to 12.59%, was observed after 60 minutes from solid dispersion prepared by the evaporation method and 12.18% from physical mixtures with drug-polymer weight ratio 1:9 in the presence chitosan. The solubility of the drug improved more than 60-fold. XRPD analysis indicates the presence of the ibuprofen in amorphous form in the solid dispersion obtained by the modified solvent evaporation.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2015, 20; 64-72
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies