Offer from Strem Chemicals available in the UK and Ireland
Metal Nanoparticles Prepared by Physical Laser Ablation Process Reach High Purities and Surface Activity
Since 2012 Strem Inc has been partnering with manufacturer Particular GmbH of Hanover to produce nanoparticles. The Laser ablation technology used by them involves the physical production of nanoparticles from a pure metal target in pure water or solvent, providing nanoparticles free of any contaminants, such as unreacted starting materials. The laser ablation technology used by manufacturer Particular GmbH of Hanover, Germany involves the physical production of nanoparticles from a pure metal target in pure water or solvent, providing nanoparticles free of any contaminants, such as unreacted starting materials.
In addition, nanoparticles produced via laser ablation have a positive charge on the surface. As a result, electrostatic stabilization by the surrounding medium occurs without the need, in most cases, for any type of chemical stabiliser (a small amount of citrate is used in aqueous solutions). The nanoparticles can also be readily functionalised and/or permanently immobilised on micro- and Nano particulate supports.
In comparison to traditional wet-chemistry techniques for nanoparticle preparation, the advantage of the laser ablation method is that the resulting metal suspensions are free from surfactants or any residues of starting materials. Conventional metal colloidal particles have to be treated prior to use in order to remove the protecting shell from the surface.
In the laser ablation process, laser energy is applied to a solid surface in a solvent. The target absorbs the energy from the laser, vaporises, and subsequently condenses into the solution as nanoparticle metal suspensions. The resulting nanoparticles carry a positive electrical charge on the surface. Therefore, the stability of the colloid is attributed to electrostatic stabilization. In addition, an electrically active surface allows interaction with molecules that bear electron-donating substituents. In‐situ functionalisation is also possible with monomers, polymers and biomolecules. Deposition can also be achieved using electrophoresis.
Ablation generated nanoparticles can be used in biomedical immunoassays, toxicology studies, targeted drug delivery and as heterogeneous catalysts
Bonus Offer for ‘Particular’ GmbH Products
While supplies last, with the purchase of any pure nanoparticles manufactured by laser ablation (and sold in collaboration with Particular GmbH), receive a 25ml sample of Strem catalogue
78-1405 Platinum nanoparticle, pure, (10-15nm) in water at 30mg/L (surfactant and reactant-free, stabilized with <0.01 mmol/l of citrate) at no additional charge.
Supplies are limited. This Bonus Offer is limited to one bonus per customer order. Please add 25ml of 78-1405 at the time your order is placed.
All products provided by Strem Chemicals UK are subject to our Terms and Conditions of Sale. Please contact Strem UK for further information
For a complete list of Particular GmbH products available from Strem and eligible for this offer enter “Particular” in the Product Number or Name search field.
Strem Chemicals, in collaboration with Particular GmbH, offers surfactant free or citrate-stabilized metal suspensions in water or organic solutions. The size of the particles are <20nm. The following Strem colloids are available:
