Abstract: A method of using at least one nanoparticle for an anti-counterfeit application including selecting the at least one nanoparticle having a non-spherical configuration; providing the at least one nanoparticle on a substrate; providing a light to the at least one nanoparticle; determining a position of the at least one nanoparticle based on providing the light to the at least one nanoparticle; determining a color of the at least one nanoparticle based on providing the light to the at least one nanoparticle; defining a nanofingerprint based on the position and the color of the at least one nanoparticle; and recognizing the nanofingerprint.

Abstract: Different Au—Pd nanoparticles, ranging from sharp-branched octopods to core@shell octahedra, can be achieved by inline manipulation of reagent flowrates in a microreactor for seeded growth. Significantly, these structures represent different kinetic products, demonstrating an inline control strategy toward kinetic nanoparticle products that should be generally applicable.

Abstract: Different Au—Pd nanoparticles, ranging from sharp-branched octopods to core@shell octahedra, can be achieved by inline manipulation of reagent flowrates in a microreactor for seeded growth. Significantly, these structures represent different kinetic products, demonstrating an inline control strategy toward kinetic nanoparticle products that should be generally applicable.

Abstract: The present invention discloses a silica particle having a diameter less than or equal to 2 ??, wherein the particle is spherical and comprises interconnected pores having a diameter in the range from 50 nm to 300 nm. The silica particle is preferably produced by spray pyrolysis (=spray drying) of a silica colloid. In the production process, porosity is introduced by means of an inorganic salt, such as NaCl, KCI, LiCl, NaNO3 or Ll NO3, which serves as a pore template. The silica particle may further be functionalized with proteins, peptides, nucleic acids, polysaccharides and proteoglycans, preferably concanavalin A or avidin. The present invention further discloses the use of the silica particle in chromatography, in particular in affinity chromatography.