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

被引：2

作者：

Marasini, Shanti ^{[1
,2
]}

Tegafaw, Tirusew ^{[1
,2
]}

Miao, Xu ^{[1
,2
]}

Ho, Son Long ^{[1
,2
]}

Cha, Hyunsil ^{[3
,4
]}

Chang, Yongmin ^{[3
,4
]}

Oh, In Taek ^{[5
,6
]}

Chae, Kwon Seok ^{[5
,6
]}

Yaseen, Ahmad Mohammad ^{[1
,2
]}

Ghazanfari, Adibehalsadat ^{[1
,2
]}

Huan, Yue ^{[1
,2
]}

Lee, Gang Ho ^{[1
,2
]}

机构：

[1] Kyungpook Natl Univ, Coll Nat Sci, Dept Chem, Daegu 41566, South Korea

[2] Kyungpook Natl Univ, Coll Nat Sci, Dept Nanosci & Nanotechnol DNN, Daegu 41566, South Korea

[3] Kyungpook Natl Univ & Hosp, Dept Mol Med & Med & Biol Engn, Daegu 41566, South Korea

[4] Kyungpook Natl Univ & Hosp, Sch Med, DNN, Daegu 41566, South Korea

[5] Kyungpook Natl Univ, Dept Biol Educ, Daegu 41566, South Korea

[6] Kyungpook Natl Univ, DNN, Teachers Coll, Daegu 41566, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2018年 / 18卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

Ultrasmall Cr2O3 Nanoparticle; Water Proton Relaxivity; UV-Visible Absorption; D-Glucuronic Acid-Coating; Biocompatibility; OXIDE NANOPARTICLES; MAGNETIC-PROPERTIES; ATR-FTIR; SURFACE; COMPLEXES; COATINGS; OXALATE; IMAGES; TIO2;

D O I：

10.1166/jnn.2018.15659

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 assynthesized D-glucuronic acid-coated nanoparticles were amorphous owing to ultrasmall particle diameters (d(avg) = 2.0 nm), whereas orthorhombic Cr2O3 nanoparticles with two size groups (davg = 3.6 and 5.7 nm) were observed after thermogravimetric analysis (900 degrees 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 r(1) = 0.05 s(-1)mM(-1) and r(2) = 20 s(-1)mM(-1), consistent with the antiferromagnetic property of Cr2O3. They showed good biocompatibility up to 500 mu M of Cr.

引用

页码：6333 / 6338

页数：6

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