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Wyszukujesz frazę "release systems" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Modified dibutyrylchitin films as matrices for controlled ibuprofen release
Autorzy:
Mucha, Maria
Michalak, Iwona
Draczyński, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/1035223.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
controlled release
dibutyrylchitin
ibuprofen
nanoclay
transdermal systems
Opis:
In view of ongoing interest in biodegradable polymers, dibutyrylchitin was used as a matrix for controlled release of a model substance. Transdermal systems (films) are presently more commonly used as an alternative to standard forms of drug delivery. The presented results are concerned with the release of ibuprofen from dibutyrylchitin film. The obtained transdermal films were modified by applying a control layer to slow down the release process. The matrices were also modified by adding nanoclay (Nanofil 2). Dibutyrylchitin matrices were tested for swelling and release kinetics using UV-Vis spectrophotometer. The drug kinetics release was studied in phosphorus buffer of pH=5.5 at the temperature of 35˚C. Structural investigations of the obtained matrices were carried out by optical microscopy and FTIR spectrophotometry. An appropriate mathematical model was also fitted to the obtained experimental data
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2013, 18, 18; 139-147
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modification of release rate of salicylic acid from chitosan membrane
Autorzy:
Mucha, Maria
Michalak, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/1035374.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
crosslinking
release
salicylic acid
transdermal systems
Opis:
Due to continued interest in biodegradable polymers, chitosan is one of the most commonly used polymers in the field of control release of active substances. Currently as carriers of drugs, among tablets, or micro spheres transdermal systems, called films, are used. The presented results apply to study a drug release in buffer of pH = 7.2 from chitosan film. To study the kinetics of controlled release salicylic acid was used as a model substance. Obtained films were cross-linked in TPP solution and were also modified by applying outsider layer to slow down the release process. Received transdermal systems were tested with swelling kinetics and the release kinetics of salicylic acid. The obtained systems were tested in relation to different temperature of cross-linking solution of chitosan, different thickness of studied matrices, the influence of outside layer and varying initial amount of salicylic acid.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2012, 17; 21-28
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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