مورد إلكتروني
Ferrogels ultrasonography for biomedical applications
| العنوان: | Ferrogels ultrasonography for biomedical applications |
|---|---|
| المصدر: | Sensors (Switzerland) |
| بيانات النشر: | MDPI AG 2019 |
| تفاصيل مُضافة: | Blyakhman, F. A. Sokolov, S. Y. Safronov, A. P. Dinislamova, O. A. Shklyar, T. F. Zubarev, A. Y. Kurlyandskaya, G. V. Сафронов, А. П. |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Ferrogels (FG) are magnetic composites that are widely used in the area of biomedical engineering and biosensing. In this work, ferrogels with different concentrations of magnetic nanoparticles (MNPs) were synthesized by the radical polymerization of acrylamide in stabilized aqueous ferrofluid. FG samples were prepared in various shapes that are suitable for different characterization techniques. Thin cylindrical samples were used to simulate the case of targeted drug delivery test through blood vessels. Samples of larger size that were in the shape of cylindrical plates were used for the evaluation of the FG applicability as substitutes for damaged structures, such as bone or cartilage tissues. Regardless of the shape of the samples and the conditions of their location, the boundaries of FG were confidently visualized over the entire range of concentrations of MNPs while using medical ultrasound. The amplitude of the reflected echo signal was higher for the higher concentration of MNPs in the gel. This result was not related to the influence of the MNPs on the intensity of the reflected echo signal directly, since the wavelength of the ultrasonic effect used is much larger than the particle size. Qualitative theoretical model for the understanding of the experimental results was proposed while taking into account the concept that at the acoustic oscillations of the hydrogel, the macromolecular net, and water in the gel porous structure experience the viscous Stocks-like interaction. © 2019 by the authors. Licensee MDPI, Basel, Switzerland. |
| مصطلحات الفهرس: | BIOMEDICAL APPLICATIONS, FERROGELS, MAGNETIC NANOPARTICLES, MEDICAL ULTRASOUND, SONOGRAPHY, ACRYLIC MONOMERS, AMIDES, BIOMEDICAL ENGINEERING, BLOOD VESSELS, MEDICAL APPLICATIONS, NANOMAGNETICS, PARTICLE SIZE, SYNTHESIS (CHEMICAL), TARGETED DRUG DELIVERY, ULTRASONOGRAPHY, ACOUSTIC OSCILLATION, CHARACTERIZATION TECHNIQUES, MAGNETIC NANO-PARTICLES, MAGNETIC NANOPARTI CLES (MNPS), THEORETICAL MODELING, NANOPARTICLES, MAGNETITE NANOPARTICLE, CHEMISTRY, ECHOGRAPHY, ELASTICITY, GEL, MECHANICAL STRESS, MEDICAL TECHNOLOGY, PROCEDURES, ULTRASTRUCTURE, BIOMEDICAL TECHNOLOGY, GELS, MAGNETITE NANOPARTICLES, STRESS, MECHANICAL, Article, info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion |
| URL: | info:eu-repo/grantAgreement/RSF//18-19-00090 |
| الإتاحة: | Open access content. Open access content info:eu-repo/semantics/openAccess cc-by |
| ملاحظة: | English |
| أرقام أخرى: | RUUSU oai:elar.urfu.ru:10995/90670 Ferrogels ultrasonography for biomedical applications / F. A. Blyakhman, S. Y. Sokolov, A. P. Safronov, O. A. Dinislamova, et al. . — DOI 10.3390/s19183959 // Sensors (Switzerland). — 2019. — Vol. 18. — Iss. 19. — 3959. 1424-8220 https://www.mdpi.com/1424-8220/19/18/3959/pdf 1 d9b87c97-187b-4018-a06d-dc330abc1321 https://elar.urfu.ru/handle/10995/90670 10.3390/s19183959 85072528897 000489187800144 1262145805 |
| المصدر المساهم: | URAL FED UNIV From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1262145805 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |