Cryochemical Production of Drug Nanoforms: Particle Size and Crystal Phase Control of the Antibacterial Medication 2,3-Quinoxalinedimethanol-1,4-dioxide (Dioxidine)
| Autor: | Michail Ya. Mel’nikov, O. I. Vernaya, Yurii N. Morosov, Tatyana I. Shabatina, Andrey V. Shabatin, Andrey V. Soloviev |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Drug
General Chemical Engineering media_common.quotation_subject Chemical structure 02 engineering and technology 010402 general chemistry 01 natural sciences Article Crystal drug nanoforms cryochemical synthesis of nanocrystals Molecule General Materials Science antibacterial drug dioxidine Dissolution QD1-999 media_common crystal structure modification particle size reduction Chemistry Condensation 021001 nanoscience & nanotechnology 0104 chemical sciences Chemical engineering Particle size 0210 nano-technology Antibacterial activity |
| Zdroj: | Nanomaterials, Vol 11, Iss 1588, p 1588 (2021) Nanomaterials Volume 11 Issue 6 |
| ISSN: | 2079-4991 |
| Popis: | Increasing the effectiveness of known, well-tested drugs is a promising low-cost alternative to the search for new drug molecular forms. Powerful approaches to solve this problem are (a) an active drug particle size reduction down to the nanoscale and (b) thermodynamically metastable but kinetically stable crystal modifications of drug acquisition. The combined cryochemical method has been used for size and structural modifications of the antibacterial drug 2,3-quinoxalinedimethanol-1,4-dioxide (dioxidine). The main stage of the proposed technique includes the formation of a molecular vapor of the drug substance, combined with a carrier gas (CO2) flow, followed by a fast condensation of the drug substance and CO2 molecules on a cooled-by-liquid nitrogen surface of preparative cryostate. It was established that the molecular chemical structure of the drug substance remained unchanged during cryochemical modification however, it led to a significant decrease of the drug particles’ size down to nanosizes and changes in the crystal structures of the solid drug nanoforms obtained. Varying carrier gas (CO2) flow led to changes in their solid phase composition. A higher dissolution rate and changes in antibacterial activity were demonstrated for cryomodified dioxidine samples in comparison to the properties of the initial pharmacopeia dioxidine. |
| Databáze: | OpenAIRE |
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