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

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

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

J Nanosci Nanotechnol. 2018 Sep 1;18(9):6333-6338.

PMID: 29677792

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.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP6556123	D-Glucuronic acid		6556-12-3	Price

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