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- IRMS - Nicolae Testemitanu SUMPh
- REVISTE MEDICALE NEINSTITUȚIONALE
- Revista Farmaceutică a Moldovei
- Revista Farmaceutică a Moldovei 2017
- Revista Farmaceutică a Moldovei Nr. 1-2, 2017
Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12710/16638
Title: | Obţinerea nanocristalelor de fenoxitiazolcloral |
Other Titles: | The production of the phenoxythiazolechloralum nanocrystals |
Authors: | Curac, Victor Podgornîi, Ana |
Keywords: | phenoxythiazolechloralum;nanocrystals;pearl mill;solubility |
Issue Date: | 2017 |
Publisher: | Asociația Farmaciștilor din Republica Moldova |
Citation: | CURAC, Victor, PODGORNÎI, Ana. Obţinerea nanocristalelor de fenoxitiazolcloral = The production of the phenoxythiazolechloralum nanocrystals. In: Revista Farmaceutică a Moldovei. 2017, nr. 1-2, p. 29. ISSN 1812-5077. |
Abstract: | Introducere. Optimizarea biodisponibilităţii substanţelor
medicamentase nou sintetizate este una din cele mai mari
provocări în design-ul raţional al medicamentelor.
Asigurarea unei solubilităţi acceptabile poate fi realizată prin
obţinerea nanoparticulelor. Practic 80% din articolele
ştiinţifice despre nanoparticule, demonstrează solubilitatea
mărită a nanoparticulelor faţă de cea a substanţei brute.
Fenoxitiazolcloralul a fost sintetizat în cadrul Institutului de
Chimie şi reprezintă o substanţă antituberculoasă cu un înalt
potenţial terapeutic, dar care posedă o solubilitate
nesatisfacătoare. Astfel, se presupune că modificarea
dimensiunilor parcticulelor prin nanonizare poate contribui la
îmbunătăţirea acestui parametru.
Scopul lucrării. Obţinerea nanocristalelor de
fenoxitiazolcloral cu ajutorul tehnologiilor modeme.
Material şi metode. Studiul şi analiza literaturii ştiinţifice
despre obţinerea nanoparticulelor. Nanonizare prin măcinare
uscată. Balanţa analitică OHAUS, Moară cu bile, Microscop
Mikos. Fenoxitiazolcloral, PEG, Polisorbat 60.
Rezultate. Au fost selectate cele mai relevante metode de
producere a nanocristalelor, şi anume măcinarea uscată în
moara cu bile şi omogenizarea la presiune înaltă. Au fost
obţinute 6 probe de nanoparticule: 2 probe conţin PEG; 2
probe - Polisorbat 60 şi 2 probe conţin amestec de PEG cu
Polisorbat 60. La analiza microscopică, mărimea medie a
particulelor la probele obţinute aveau dimensiuni de 4 ori mai
mici în comparaţie cu substanţa iniţială, cele mai omogene
din punct de vedere morfologic fiind nanoparticulele din
proba 3,5,6.
Concluzii. Au fost obţinute şi studiate la microscop
electronic nanoparticule de fenoxitiazolcloral. Au fost
selectate 3 probe pentru cercetarea ulterioară al stabilităţii şi
a disponibilităţii in vitro. Introduction. The optimization of bioavailability of the
new synthetized drugs is one of the biggest challenges in the
rational design of the drugs. The insurance of an accepted
solubility can be achieved by the production of the
nanoparticles. Almost 80% of the scientific articles about the
nanoparticles, show an increase in solubility of the
nanoparticles rather than of the initial substance.
Phenoxythiazolechloralum was synthetized at the Chemical
Institute. It represents an antituberculosis substance with a
high therapeutical potential, but it possesses a poor solubility.
Thus, it is assumed that the change in the particles’ size by
nano-ionization can contribute to the improvement of its
solubility.
The aim of the study. The attainment of the
phenoxythiazolechloralum nanocrystals with the help of the
modem technologies.
Material and methods. The study and the analysis of the
scientific literature about the obtainment of the nanoparticles.
Nano-ionization by dry milling. OHAUS analytical balance,
Pearl mill, Mikos microscope. Phenoxythiazolechloralum,
PEG, Polysorbate 60.
Results. It was selected the most relevant methods for the
production of the nanocrystals, pearl milling and high
pressure homogenization. There were obtained 6 samples of
nanoparticles: 2 samples containing PEG; 2 samples
containing Polysorbate 60 and other 2 samples containing a
mixture of PEG and Polysorbate 60. The average size of the
particles of the obtained samples was 4 times smaller in
comparison with the initial substance under microscopic
examination, and the nanoparticles from the samples 3,5,6
were the most homogeneous.
Conclusions. It was obtained and studied under the
electronic microscope the phenoxythiazolechloralum
nanoparticles. Three samples were selected for the further
stability and bioavailability in vitro researches. |
metadata.dc.relation.ispartof: | Revista Farmaceutică a Moldovei: The First Congress of Pharmaceutical Students Association from Republic of Moldova dedicated to the Year Nicolae Testemitanu "Innovation and creativity in pharmaceutical practice and research”, May 4-7, 2017, Chisinau, Republic of Moldova |
URI: | http://repository.usmf.md/handle/20.500.12710/16638 |
ISSN: | 1812-5077 |
Appears in Collections: | Revista Farmaceutică a Moldovei Nr. 1-2, 2017
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