laser ablation – TechConnect Briefs

Pulsed Laser Deposition of Carbon Nanomaterials

Mozet W.T., Tse S.D., Kear B., Chhowalla M., Cheong S-W, Rutgers University, US

Nanostructured graphite and few-layer graphene (FLG) have been grown on copper and silicon substrates via pulsed laser deposition (PLD). Our PLD setup utilizes a high power Nd:YAG laser (266 and 532 nm) to ablate a [...]

Grow of stem cells on chemical-laser generated titanium cobalt shape memory alloy nanoparticles

Karami A., Materials and Energy Research Centre, IR

In this research nanoparticles are fabricated using a method that is a combination of chemical and femtosecond laser ablation methods. The resulting nanoparticles are used to coat glass substrates in order to test the biocompatibility [...]

Fabrication of electrical microfluidic chip for electroporation of mammalian cells

Shahini M., Wijngaarden F.V., Yeow J.T.W., University of Waterloo, CA

The point of this paper is to demonstrate the use of a quick and cheap fabrication method to realize a laser-ablated microfluidic channel for single cell electroporation. Traditional lithography of microchannel with electrode in MEMS [...]

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 [...]

Synthesis and characterization of cation-exchanged laponite nanohybrids for use as drilling fluid viscosifier

Phuoc T.X., Soong Y., Chyu M.K., National Energy Technology Lab, US

In this paper we report our new approach to synthesize cation-exchanged Laponite nanohybrids for use as gel-forming, viscosity and weighting material stabilizing additives for drilling fluid application. To synthesize the nanohybrids, we use laser ablation [...]

Photoluminescence Studies of Zn-ZnO Inorganic/ SDS Organic Nanocomposite Materials Synthesized by Laser Ablation at Different Temperature

Singh S.C., Swarnkar R.K., Gopal R., Allahabad University, IN

Materials at the nanoscale have shown their importance in the fabrication of electronic, optoelectronic, sensing, and energy storing and harvesting devices. They act also vital role in the fluorescent tagging, fluorescence microscopy and imagine. Fluorescent [...]

Biofunctionalization of laser-ablated gold nanoparticles

Riabinina D., Zhang J., Zhang T., Zhang J., Zhang T., Chaker M., Ma D., Tijssen P., Universite du Quebec, CA

For the first time, we investigated the biofunctional activity of gold nanoparticles prepared by nanosecond pulsed laser ablation in liquid media. This method allows the fabrication of gold nanoparticles surrounded by a metastable gold oxide [...]

Optical properties of Zinc Oxide/Polymer Nanocomposite

Singh S.C., Swarnkar R.K., Gopal R., University of Allahabad, IN

Semiconductor/polymer Nanocomposite materials have wide range of applications in optoelectronic industry in the fabrication of LEDs, Photo detectors, Displays etc due to their composition dependent electroluminescence (EL) and photoluminescence (PL) properties. ZnO/ PEG Nanocomposite materials [...]

Expansion-Limited Nanocluster Growth in a Plume Formed by MHz-Pulse-Rate Laser Ablation

Rode A.V., Madsen N.R., Gamaly E.G., Luther-Davies B., The Australian National University, AU

Material parameters of a solid experience a dramatic change when cluster size becomes less than a certain critical value. Hence, one can control material properties through control over cluster size. Previously we have produced and [...]

Ultrafine Carbon Nitride Nanocrystals Synthesized by Laser Ablation in Liquid Solution

Yang L., May P.W., Smith J.A., Yin L., University of Bristol, UK

Crystalline carbon nitride nanopowders and nanorods have been successfully synthesized at room temperature and pressure using the novel technique of pulsed laser ablation of a graphite target in liquid ammonia solution.The experimental composition and structure [...]