Highly water-soluble nanocrystal powders of magnetite and maghemite coated with gluconic acid: Preparation, structure characterization, and surface coordination

Wei, Xiucheng; Wei, Zhiwei; Zhang, Liping; Liu, Yingqi; He, Deyan

doi:10.1016/j.jcis.2010.10.049

Cited by 30 publications

(2 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their XRD profiles are so similar that more methods should be employed to find out which structure is formed. Here, high resolution TEM (HRTEM) can be a useful technique along with Raman spectroscopy (Figure ) and, in some cases, FTIR spectroscopy. − …”

Section: Characterization Techniques For Np/dendrimer (Dendron) Compo...mentioning

confidence: 99%

Dendrimers as Encapsulating, Stabilizing, or Directing Agents for Inorganic Nanoparticles

2011

View full text Add to dashboard Cite

show abstract

Section: Characterization Techniques For Np/dendrimer (Dendron) Compo...mentioning

confidence: 99%

Dendrimers as Encapsulating, Stabilizing, or Directing Agents for Inorganic Nanoparticles

2011

View full text Add to dashboard Cite

show abstract

“…To date, many methods have been developed to synthesize SPIONs, including co-precipitation (Wei et al 2011), thermal decomposition (Sun and Zeng 2002), microemulsion (Deng et al 2003), and microwave assisted synthesis (Baghbanzadeh et al 2011). Co-precipitation method is generally easy and affords high yields, but the reported SPIONs are rather polydisperse and their crystallinity is poor (Lu et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Enhanced stability of superparamagnetic iron oxide nanoparticles in biological media using a pH adjusted-BSA adsorption protocol

Laromaine

Roig

2014

J Nanopart Res

View full text Add to dashboard Cite

Superparamagnetic iron oxide nanoparticles (SPIONs) are widely used for biological applications due to their unique properties compared to their bulk counterparts, simplified SPIONs stabilization protocols applicable for a wide spectra of biological media remains a challenging issue. In this work, SPIONs with different surface coatings, tetramethylammonium hydroxide coated SPIONs (T-SPIONs) and citrate coated SPIONs (C-SPIONs), were synthesized by a facile, rapid and cost effective microwave assisted method. CSPIONs show robust stability in biological media of PBS and RPMI, while destabilize in DMEM. T-SPIONs were found to aggregate rapidly and significantly in all tested media. Then, a modified pH adjusted-BSA adsorption protocol and an addition of excess trisodium citrate dihydrate (Na 3 Cit) were used to enhance their stability in the media. The BSA adsorption protocol showed great efficiency in stabilizing the dispersed state of both SPIONs in the tested media, while the addition of excess Na 3 Cit showed limit effect, and it was only applicable for C-SPIONs. The formed BSA layer on SPIONs could be imaged by negative staining TEM, and revealed by Cryo-TEM, FTIR, DLS and the zeta potential measurements. Results indicated that BSA forms a monolayer of a thickness of about 3 ± 1 nm and BSA interacts with C-SPIONs and T-SPIONs through the coating of the SPIONs, rather than by replacing them and interacting directly with the SPIONs surface. This synthetic method and stabilization protocol offer a general methodology to obtain SPIONs with a variety of surfactants, stable in different biological media in few minutes.

show abstract

Design of Magnetic Nanoparticles for MRI-Based Theranostics

Hou

Chu

2016

Advances in Nanotheranostics II

View full text Add to dashboard Cite

Highly water-soluble nanocrystal powders of magnetite and maghemite coated with gluconic acid: Preparation, structure characterization, and surface coordination

Cited by 30 publications

References 64 publications

Dendrimers as Encapsulating, Stabilizing, or Directing Agents for Inorganic Nanoparticles

Dendrimers as Encapsulating, Stabilizing, or Directing Agents for Inorganic Nanoparticles

Enhanced stability of superparamagnetic iron oxide nanoparticles in biological media using a pH adjusted-BSA adsorption protocol

Design of Magnetic Nanoparticles for MRI-Based Theranostics

Contact Info

Product

Resources

About