Silica coating of Fe3O4 magnetic nanoparticles with PMIDA assistance to increase the surface area and enhance peptide immobilization efficiency; Ceramics International; Vol. 47, iss. 16

Silica coating of Fe3O4 magnetic nanoparticles with PMIDA assistance to increase the surface area and enhance peptide immobilization efficiency; Ceramics International; Vol. 47, iss. 16

Detaylı Bibliyografya
Parent link:Ceramics International
Vol. 47, iss. 16.— 2021.— [P. 23078-23087]
Müşterek Yazar: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий
Diğer Yazarlar: Demin A. M. Aleksandr Mikhaylovich, Maksimovskikh A. I. Aleksey Ivanovich, Mekhaev A. V. Aleksandr Vladimirovich, Kuznetsov D. K. Dmitry Konstantinovich, Minin A. S. Artem Sergeevich, Pershina A. G. Aleksandra Gennadievna, Uymin M. A. Mikhail Aleksandrovich, Shur V. Ya. Vladimir Yakovlevich, Krasnov V. P. Viktor Pavlovich
Özet:Title screen
The high efficiency of using N-(phosphonomethyl)iminodiacetic acid (PMIDA) as a surfactant for formation of a silica coating on Fe3O4 magnetic nanoparticles (MNPs) with a large surface area has been demonstrated. The coating of PMIDA-stabilized MNPs with silica and their further APS-functionalization significantly increased the specific area (up to 203 m2 g−1) and the number of amino groups (up to 1.12 mmol/g) grafted on their surface compared to nanomaterials synthesized without preliminary SiO2-coating. The comparative study of the peptide modification efficiency, using as an example pH-low insertion peptide (pHLIP), of MNPs coated with 3-aminopropylsilane (APS) or SiO2/APS was carried out. It has been shown that silica coating of PMIDA-stabilized MNPs leads to a significant increase in the degree of immobilization of the peptide (up to 22 μmol per g of MNPs). Comprehensive characterization of the obtained materials at each stage of the synthesis was carried out using scanning electron microscopy (SEM), energy dispersive X-ray fluorescence spectroscopy (EDX), BET analysis, ATR Fourier transformed infrared spectroscopy (FTIR), termogravimetric analysis (TGA), CHN-elemental analysis, dynamic light scattering (DLS), and vibrating sample magnetometry (VSM). The proposed approach to applying SiO2-coating of MNPs can be useful for design of new materials for biomedical and chemical purposes.
Режим доступа: по договору с организацией-держателем ресурса
Dil:İngilizce
Baskı/Yayın Bilgisi: 2021
Konular:
электронный ресурс
труды учёных ТПУ
B. Nanocomposites
D. Ferrites
B. Surfaces
D. SiO2
PMIDA
нанокомпозиты
ферриты
поверхности
Online Erişim:https://doi.org/10.1016/j.ceramint.2021.04.310
Materyal Türü: Elektronik Kitap Bölümü
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667890

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