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US 2018/0021226 A1Published application
Microcomplex for Use in Photoepilation Process to Obtain it and Composition Containing it
AssigneesFundació Institut De CièNcies FotòNiques, Institució Catalana De Recerca I Estudis AvançAts
InventorsIgnacio De Miguel, Romain Quidant
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Abstract
The present invention relates to a microcomplex containing a modified nanoparticle adsorbed on a host microparticle and to a process to obtain it. The microcomplex is particularly useful for photoepilation. The present invention also relates to a composition containing the microcomplex and to the method for enhanced photoepilation based on the microcomplexes.
Claims14
A microcomplex for use in photoepilation comprising:
- a nanocomplex which comprise a nanoparticle of a material selected from the group consisting of metals, semiconductors and their mixtures, supporting a Localized Surface Plasmon Resonance, which is coated by forming at least a bond, coordinative or covalent, with at least a polycationic polymer or a heterobifunctional compound which comprises at least a thiol group on one extreme of the molecule and at least a positively charged functional group on the other extreme;
- adsorbed on the surface of a host particle with a diameter comprised between 100 nm and 2000 nm;
- the microcomplex have a Z potential higher than 10 mv.
Dependencies are inferred from the claim text.