nanosphere – TechConnect Briefs

Optimization of synthesis conditions to prepare desired shell thickness of superparamagnetic MgFe2O4@SiO2 core-shell nanosphere for biomedical applications

Das H., Debnath N., Arai T., Sakamoto N., Shinozaki K., Suzuki H., Wakiya N., Shizuoka University, JP

We have described here a simple way for the fabrication of superparamagnetic MgFe2O4@SiO2 core-shell spherical nanoparticles with controlled shell thickness. First, core MgFe2O4 dense nano-spheres were directly synthesized by ultrasonic spray pyrolysis (USP) technique from [...]

Three-Dimensional Bioprinted Biomimetic Nanocomposite Scaffolds for Osteochondral Regeneration

Castro N.J., Zhang L.G., The George Washington University, US

The current work focused on the manufacture of a three-dimensional biphasic nanocomposite scaffold for osteochondral regeneration. Extrusion-based 3D printing in combination with ultraviolet light induced photocrosslinking allowed for good integration of two disparate polymeric materials [...]

Green, Cubic Y2O3: Tb3+ Nanospheres: Synthesis and Photoluminescence Property

Miao H., Hu X.Y., Sun Q., Sun X., Wang Z.Z., Sun Q., Sun X., Zhang D.K., Bai J.T., Hou X., Northwest University, CN

Tb3+-doped Y2O3 green nanospheres were prepared via the simple, cost-effective urea homogeneous precipitation method without additives. Nanospheres were characterized by X-ray diffraction, Scanning electron microscope, Photoluminescence spectroscopy. The specimens annealed above 800oC are well matched [...]

Highly Spherical Gold Nanoparticles by Laser Pulse Heating

Cavicchi R.E., Meier D.C., Presser C., Guha S., National Institute of Standards and Technology, US

Methods continue to be developed for improving the size and shape uniformity of Au nanoparticles (NP), however, fabricated NPs tend to be faceted and not highly spherical. We present results that show that the faceted [...]

Development of Nanoparticle-Based Gold Contrast Agent for Photoacoustic Tomography

Yang Y.-S., Vaithilingam S., Ma H.T.-J., Khuri-Yakub B.T., Guccione S., Stanford University, US

Photoacoustic tomography (PAT) utilizes non-ionizing energy to obtain structural/functional information with high spatial resolution and sensitivity. Heterogeneous absorption of optical energy in biological tissues results in differentially expressed acoustic signals yielding spatial/temporal information. A critically [...]