Relaxometric, Optical and Cell Viability Properties of D-Glucuronic Acid Coated Cr2O3 Nanoparticles.

Marasini, Shanti; Tegafaw, Tirusew; Miao, Xu; Ho, Son Long; Cha, Hyunsil; Chang, Yongmin; Oh, In Taek; Chae, Kwon Seok; Yaseen, Ahmad Mohammad; Ghazanfari, Adibehalsadat; Huan, Yue; Lee, Gang Ho

Marasini, Shanti; Tegafaw, Tirusew; Miao, Xu; Ho, Son Long; Cha, Hyunsil; Chang, Yongmin; Oh, In Taek; Chae, Kwon Seok; Yaseen, Ahmad Mohammad; Ghazanfari, Adibehalsadat; Huan, Yue; Lee, Gang Ho.

Afiliação

Marasini S; Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN), College of Natural Sciences, Kyungpook National University, Daegu 41566, South Korea.
Tegafaw T; Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN), College of Natural Sciences, Kyungpook National University, Daegu 41566, South Korea.
Miao X; Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN), College of Natural Sciences, Kyungpook National University, Daegu 41566, South Korea.
Ho SL; Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN), College of Natural Sciences, Kyungpook National University, Daegu 41566, South Korea.
Cha H; Department of Molecular Medicine and Medical and Biological Engineering and DNN, School of Medicine, Kyungpook National University and Hospital, Daegu 41566, South Korea.
Chang Y; Department of Molecular Medicine and Medical and Biological Engineering and DNN, School of Medicine, Kyungpook National University and Hospital, Daegu 41566, South Korea.
Oh IT; Department of Biology Education and DNN, Teachers' College, Kyungpook National University, Daegu 41566, South Korea.
Chae KS; Department of Biology Education and DNN, Teachers' College, Kyungpook National University, Daegu 41566, South Korea.
Yaseen AM; Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN), College of Natural Sciences, Kyungpook National University, Daegu 41566, South Korea.
Ghazanfari A; Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN), College of Natural Sciences, Kyungpook National University, Daegu 41566, South Korea.
Huan Y; Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN), College of Natural Sciences, Kyungpook National University, Daegu 41566, South Korea.
Lee GH; Department of Chemistry and Department of Nanoscience and Nanotechnology (DNN), College of Natural Sciences, Kyungpook National University, Daegu 41566, South Korea.

J Nanosci Nanotechnol ; 18(9): 6333-6338, 2018 09 01.

Article em En | MEDLINE | ID: mdl-29677792

ABSTRACT

ABSTRACT

D-glucuronic acid-coated ultrasmall chromium oxide (Cr2O3) nanoparticles were synthesized by a one-pot polyol method and their relaxometric and optical properties were investigated. The as-synthesized D-glucuronic acid-coated nanoparticles were amorphous owing to ultrasmall particle diameters (davg = 2.0 nm), whereas orthorhombic Cr2O3 nanoparticles with two size groups (davg = 3.6 and 5.7 nm) were observed after thermogravimetric analysis (900 °C) as a result of particle growth. The nanoparticles exhibited size-dependent UV-visible absorption maxima at 238, 274, and 372 nm with increasing particle diameter, corresponding to band gaps of 5.13, 4.45, and 3.28 eV, respectively. D-glucuronic acid-coated ultrasmall Cr2O3 nanoparticles revealed low water proton relaxivities of r1 = 0.05 s-1mM-1 and r2 = 0.20 s-1mM-1, consistent with the antiferromagnetic property of Cr2O3. They showed good biocompatibility up to 500 µM of Cr.

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Texto completo: 1 Bases de dados: MEDLINE Idioma: En Revista: J Nanosci Nanotechnol Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Coréia do Sul

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