Synthesis, characterization and magnetic properties of spider silk coated with maghemite (γ-Fe2O3) nanoparticles

被引：4

作者：

Butulija, Svetlana ^{[1
]}

Spasojevic, Vojislav ^{[1
]}

Brankovic, Goran ^{[2
]}

Dordevic, Marija Prekajski ^{[1
]}

Radulovic, Tamara ^{[3
]}

Zarubica, Aleksandra ^{[4
]}

Matovic, Branko ^{[1
]}

机构：

[1] Univ Belgrade, Natl Inst Republ Serbia, VINCA Inst Nucl Sci, Mike Petrovica Alasa 12-14, Belgrade 11000, Serbia

[2] Univ Belgrade, Inst Multidisciplinary Res, Dept Mat Sci, Kneza Viseslava 1, Belgrade 11351, Serbia

[3] Carl von Ossietzky Univ Oldenburg, Sch Med & Hlth Sci, Dept Human Med, Sect Physiol, Carl von Ossietzky Str 9-11, D-26129 Oldenburg, Germany

[4] Univ Nis, Dept Chem, Fac Sci & Math, Visegradska 33, Nish 18000, Serbia

来源：

MATERIALS LETTERS | 2022年 / 314卷

关键词：

Spider silk; Maghemite; Coating; Magnetic properties;

D O I：

10.1016/j.matlet.2022.131856

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spider silk-maghemite (SS-gamma-Fe2O3) composite was obtained by simple and fast co-precipitation method at room temperature. The fibers were coated with maghemite nanoparticles with the average size of 25 nm. According to DTA, maghemite NPs contributed the thermal stability of the composite. Magnetic properties of as obtained composite were estimated. At room temperature, the system was is in a superparamagnetic state, while at temperature of 5 K the magnetic moments were blocked. This composite is seen as a novel hybrid material with superparamagnetic properties for possible applications in bioseparation, biosensors, magnetographic printing, magnetic screens, and magnetic filters as well as sensing/actuating components of MEMS.

引用

页数：4

共 10 条

[1] Identification and classification of silks using infrared spectroscopy [J].