Abstract: The present invention relates to a method for the detection of at least one nano or micro plastic particle comprised in a heterogeneous matrix material comprising the following steps: applying of at least one part of a heterogeneous matrix material comprising at least one nano or micro plastic particle onto at least a portion of a surface of a conductive support thereby forming a first layer onto said surface, irradiating of at least a portion of said first layer with at least one ion beam, thereby forming an irradiated layer, detecting of the at least one nano or micro plastic particle comprised in said irradiated layer by a detection method chosen from the group of Raman nanoscopic techniques, or infrared nanoscopic techniques, or charge dependent detection methods or combination thereof. The present invention allowed good detection of micro and nano plastic particles with high resolution and sensitivity.

Abstract: The present invention relates to a method for the detection of at least one nano or micro plastic particle comprised in a heterogeneous matrix material comprising the following steps: applying of at least one part of a heterogeneous matrix material comprising at least one nano or micro plastic particle onto at least a portion of a surface of a conductive support thereby forming a first layer onto said surface, irradiating of at least a portion of said first layer with at least one ion beam, thereby forming an irradiated layer, detecting of the at least one nano or micro plastic particle comprised in said irradiated layer by a detection method chosen from the group of Raman nanoscopic techniques, or infrared nanoscopic techniques, or charge dependent detection methods or combination thereof. The present invention allowed good detection of micro and nano plastic particles with high resolution and sensitivity.

Abstract: This invention discloses a new conjugate compound that comprises at least one HA oligomer derivatized through one thiolated linker, whereby it binds to at least one metal nanoparticle, such as, for example, a gold nanoparticle. Moreover, it discloses methods of obtaining it, as well as the use thereof in a cosmetic treatment, and cosmetic compositions that contain them.

Abstract: This invention discloses a new conjugate compound that comprises at least one HA oligomer derivatised through one thiolated linker, whereby it binds to at least one metal nanoparticle, such as, for example, a gold nanoparticle. Moreover, it discloses methods of obtaining it, as well as the use thereof in a cosmetic treatment, and cosmetic compositions that contain them.