Abstract: A method for producing a printed magnetic functional element, in which a substrate is provided on one surface with at least one contact made of an electrically conductive material. Subsequently, a structure made of a material which has a magnetoresistive effect and is in the form of a paste, a gel, a dispersion or a suspension is printed on or onto the at least one contact and touches the contact directly, and the structure becomes electrically conductive and sensitive to magnetic fields by irradiation with electromagnetic radiation over a time period in the millisecond range.

Abstract: The invention relates to a method for producing nanoparticles from a noble metal and to the use of the nanoparticles produced using the method. It is the object of the invention to provide possibilities for a simple and inexpensive production of nanoparticles from a noble metal in which influence can be directly made on the particle size of the nanoparticles thus produced. Nanoparticles of silver, gold and platinum can be produced with an adjustable particle size using the method in accordance with the invention. A chemical compound of the respective noble metal is dissolved in an aqueous solution or the noble metal is dissolved in an acid mixture. An aqueous solution containing at least one surfactant is added to the respective solution and a reductant is additionally added with silver and platinum. The parameters: concentration of the chemical compound or of the noble metal, the temperature, pH and the fraction of surfactant are influenced to influence the particle size.