Journal of Nanoparticle Research

Journal: Journal of Nanoparticle Research

Abbreviation

J. nanopart. res.

Publisher

Springer

ISSN

1388-0764
1572-896X

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Publications1 - 10 of 50

Public Perception of Nanotechnology
Burri, Regula V.; Bellucci, Sergio (2008)
Journal of Nanoparticle Research
Structural properties of silver nanoparticle agglomerates based on transmission electron microscopy
Shin, Weon Gyu; Wang, Jing; Mertler, Michael; et al. (2009)
Journal of Nanoparticle Research
Enhanced dispersion stability and mobility of carboxyl-functionalized carbon nanotubes in aqueous solutions through strong hydrogen bonds
Bahk, Yeon Kyoung; He, Xu; Gitsis, Emmanouil; et al. (2015)
Journal of Nanoparticle Research
Dispersion of carbon nanotubes has been heavily studied due to its importance for their technical applications, toxic effects, and environmental impacts. Common electrolytes, such as sodium chloride and potassium chloride, promote agglomeration of nanoparticles in aqueous solutions. On the contrary, we discovered that acetic electrolytes enhanced the dispersion of multi-walled carbon nanotubes (MWCNTs) with carboxyl functional group through the strong hydrogen bond, which was confirmed by UV–Vis spectrometry, dispersion observations and aerosolization-quantification method. When concentrations of acetate electrolytes such as ammonium acetate (CH3CO2NH4) and sodium acetate (CH3CO2Na) were lower than 0.03 mol per liter, MWCNT suspensions showed better dispersion and had higher mobility in porous media. The effects by the acetic environment are also applicable to other nanoparticles with the carboxyl functional group, which was demonstrated with polystyrene latex particles as an example.
Preparation of nano-gypsum from anhydrite nanoparticles
Osterwalder, Neil; Loher, Stefan; Grass, Robert N.; et al. (2007)
Journal of Nanoparticle Research
Colloidal stability of polymeric nanoparticles in biological fluids
Lazzari, Stefano; Moscatelli, Davide; Codari, Fabio; et al. (2012)
Journal of Nanoparticle Research
Annealing of magnetic nanoparticles for their encapsulation into microcarriers guided by vascular magnetic resonance navigation
Pouponneau, Pierre; Segura, Vincent; Savadogo, Oumarou; et al. (2012)
Journal of Nanoparticle Research
Decomposition and particle release of a carbon nanotube/epoxy nanocomposite at elevated temperatures
Schlagenhauf, Lukas; Kuo, Yu-Ying; Bahk, Yeon Kyoung; et al. (2015)
Journal of Nanoparticle Research
Carbon nanotubes (CNTs) as fillers in nanocomposites have attracted significant attention, and one of the applications is to use the CNTs as flame retardants. For such nanocomposites, possible release of CNTs at elevated temperatures after decomposition of the polymer matrix poses potential health threats. We investigated the airborne particle release from a decomposing multi-walled carbon nanotube (MWCNT)/epoxy nanocomposite in order to measure a possible release of MWCNTs. An experimental set-up was established that allows decomposing the samples in a furnace by exposure to increasing temperatures at a constant heating rate and under ambient air or nitrogen atmosphere. The particle analysis was performed by aerosol measurement devices and by transmission electron microscopy (TEM) of collected particles. Further, by the application of a thermal denuder, it was also possible to measure non-volatile particles only. Characterization of the tested samples and the decomposition kinetics were determined by the usage of thermogravimetric analysis (TGA). The particle release of different samples was investigated, of a neat epoxy, nanocomposites with 0.1 and 1 wt% MWCNTs, and nanocomposites with functionalized MWCNTs. The results showed that the added MWCNTs had little effect on the decomposition kinetics of the investigated samples, but the weight of the remaining residues after decomposition was influenced significantly. The measurements with decomposition in different atmospheres showed a release of a higher number of particles at temperatures below 300 °C when air was used. Analysis of collected particles by TEM revealed that no detectable amount of MWCNTs was released, but micrometer-sized fibrous particles were collected.
Simulation of Nanoparticle Production in Premixed Aerosol Flow Reactors by interfacing Fluid Mechanics and Particle Dynamics
Schild, A.; Gutsch, A.; Mühlenweg, H.; et al. (1999)
Journal of Nanoparticle Research
Seed-mediated synthesis of gold nanorods: control of the aspect ratio by variation of the reducing agent
Koeppl, Susanne; Ghielmetti, Nico; Caseri, Walter; et al. (2013)
Journal of Nanoparticle Research
Novel strontium-doped bioactive glass nanoparticles enhance proliferation and osteogenic differentiation of human bone marrow stromal cells
Strobel, L.A.; Hild, Nora; Mohn, Dirk; et al. (2013)
Journal of Nanoparticle Research

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