Characterization of iron oxide nanoparticles by means of single-particle ICP-mass spectrometry (SP-ICP-MS) – chemical versus physical resolution to overcome spectral overlap

2020 ◽  
Vol 35 (9) ◽  
pp. 2023-2032
Author(s):  
Ana Rua-Ibarz ◽  
Eduardo Bolea-Fernandez ◽  
Guillermo Pozo ◽  
Xochitl Dominguez-Benetton ◽  
Frank Vanhaecke ◽  
...  

In this work, different single-particle ICP-MS (SP-ICP-MS) approaches, relying on either chemical or physical resolution to overcome spectral overlap, have been assessed for their utility in the characterization of iron oxide nanoparticles (IONPs).

2019 ◽  
Vol 34 (9) ◽  
pp. 1846-1855 ◽  
Author(s):  
Thibaut Van Acker ◽  
Eduardo Bolea-Fernandez ◽  
Elly De Vlieghere ◽  
Jingxian Gao ◽  
Olivier De Wever ◽  
...  

A new analytical method for quantitative high-resolution LA-ICP-MS/MS imaging of FeOx NPs in gelatin microspheres.


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.


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 160 ◽  
pp. 522-525 ◽  
Author(s):  
Simone F. Medeiros ◽  
João O.C. Filizzola ◽  
Victor F.M. Fonseca ◽  
Paulo F.M. Oliveira ◽  
Taline M. Silva ◽  
...  

2014 ◽  
Vol 64 (3) ◽  
pp. 344-348
Author(s):  
Yousaf IQBAL ◽  
Ilsu RHEE ◽  
Hongsub BAE ◽  
Junghyun BYUN ◽  
Taeyoung JUNG ◽  
...  

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