A novel hybrid nanoparticle based on Fe3O4/TMAOH/poly(L-co-D,L lactic acid-co-trimethylene carbonate) prepared through the solvent displacement method

被引：4

作者：

Machado, Vagner de Oliveira ^{[1
]}

Andrade, Angela Leao ^{[2
]}

Duarte Cavalcante, Luis Carlos ^{[3
,4
]}

Fabris, Jose Domingos ^{[4
,5
]}

Domingues, Rosana Zacarias ^{[4
]}

Ardisson, Jose Domingos ^{[6
]}

Fernandez-Outon, Luis E. ^{[6
]}

Pizarro, Carmen ^{[7
]}

Elias, Carlos Nelson ^{[1
]}

机构：

[1] Mil Inst Engn IME, Lab Biomat, BR-22290270 Rio De Janeiro, RJ, Brazil

[2] Fed Univ Ouro Preto UFOP, Dept Chem, BR-35400000 Ouro Preto, MG, Brazil

[3] Fed Univ Piaui LTPI, Ctr Nat Sci, BR-64049550 Teresina, PI, Brazil

[4] Fed Univ Minas Gerais UFMG, Dept Chem, BR-31270901 Belo Horizonte, MG, Brazil

[5] Fed Univ Uberlandia UHT, Inst Chem, BR-38400902 Uberlandia, MG, Brazil

[6] CDTN, Lab Appl Phys, BR-31270901 Belo Horizonte, MG, Brazil

[7] Univ Santiago, Chile USACH, Fac Chem & Biol, Santiago, Chile

来源：

HYPERFINE INTERACTIONS | 2019年 / 240卷 / 1期

关键词：

Magnetite; Hybrid nanoparticles; Biomaterial; MAGNETITE NANOPARTICLES;

D O I：

10.1007/s10751-019-1558-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

TMAOH-dispersed nanoparticles of magnetite were first prepared through the reduction-precipitation of ferric chloride with Na2SO3 and NH4OH. The TMAOH-dispersed (Fe3O4) magnetic nanoparticles were then surface-coated with poly(L-co-D,L lactic acid-co-trimethylene carbonate) (PLDLA-co-TMC) to obtain the corresponding hybrid system (Fe3O4/TMAOH/PLDLA-co-TMC). Samples of so prepared material were analyzed by Fourier-transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD), magnetization measurements up to 2.5T, and Mossbauer spectroscopy. Results indicate that this magnetic iron oxide soon after the synthesis is structurally close enough to a typically pure stoichiometric magnetite. FTIR data support clears evidences confirming the efficiency of the solvent displacement method to assure coating the TMAOH-dispersed (Fe3O4) magnetic nanoparticles with the terpolymer while preserves the main chemical structural characteristic of the nanosized magnetite.

引用

页数：10

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