Characterization of Iron-Oxide Nanoparticles Synthesized by Using the Sonochemical Method for Applications to Magnetic Hyperthermia

2017 ◽  
Vol 67 (3) ◽  
pp. 295-300
Author(s):  
Hyewon CHUNG ◽  
Da-Ae LEE ◽  
Hongsub BAE ◽  
Ilsu RHEE* ◽  
Sungwook HONG
2015 ◽  
Vol 1718 ◽  
pp. 3-7
Author(s):  
Stephany Herrera-Posada ◽  
Barbara O. Calcagno ◽  
Aldo Acevedo

ABSTRACTLiquid crystalline elastomers (LCEs) are materials that reveal unusual mechanical, optical and thermal properties due to their molecular orientability characteristic of low molar mass liquid crystals while maintaining the mechanical elasticity distinctive of rubbers. As such, they are considered smart shape-changing responsive systems. In this work, we report on the preparation of magnetic sensitized nematic LCEs using iron oxide nanoparticles with loadings of up to 0.7 wt%. The resultant thermal and mechanical properties were characterized by differential scanning calorimetry, expansion/contraction experiments and extensional tests. The magnetic actuation ability was also evaluated for the neat elastomer and the composite with 0.5 wt% magnetic content, finding reversible contractions of up to 23% with the application of alternating magnetic fields (AMFs) of up to 48 kA/m at 300 kHz. Thus, we were able to demonstrate that the inclusion of magnetic nanoparticles yields LCEs with adjustable properties that can be tailored by changing the amount of particles embedded in the elastomeric matrix, which can be suitable for applications in actuation, sensing, or as smart substrates.


2012 ◽  
Vol 48 (4) ◽  
pp. 1320-1323 ◽  
Author(s):  
K. D. Bakoglidis ◽  
K. Simeonidis ◽  
D. Sakellari ◽  
G. Stefanou ◽  
M. Angelakeris

2018 ◽  
Vol 9 (37) ◽  
pp. 4642-4650 ◽  
Author(s):  
Thomas Blin ◽  
Antoine Niederberger ◽  
Lazhar Benyahia ◽  
Jérôme Fresnais ◽  
Véronique Montembault ◽  
...  

Preparation and characterization of stimuli-sensitive hybrid double-crosslinked hydrogels based on iron oxide nanoparticles as the nano-crosslinkers and a difuran-functionalized PEO as the diene partner for the thermoreversible Diels–Alder reaction.


2015 ◽  
Vol 48 (49) ◽  
pp. 494001 ◽  
Author(s):  
Gauvin Hemery ◽  
Elisabeth Garanger ◽  
Sébastien Lecommandoux ◽  
Andrew D Wong ◽  
Elizabeth R Gillies ◽  
...  

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