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Recent Patents on Drug Delivery & Formulation


ISSN (Print): 1872-2113
ISSN (Online): 2212-4039

Review Article

Recent Patents Concerning the use of Nanotechnology-based Delivery Systems as Skin Penetration Enhancers

Author(s): Bruna Medeiros-Neves, Marina Cardoso Nemitz, Flávia Nathiely Silveira Fachel and Helder Ferreira Teixeira*

Volume 13 , Issue 3 , 2019

Page: [192 - 202] Pages: 11

DOI: 10.2174/1872211313666191024112137


Nanotechnology-based delivery systems have been considered a promising approach for topical application, considering their characteristics of penetration into/across the skin. The present review aimed to evaluate the recent international scenario of patents concerning the use of nanotechnology- based delivery systems as skin penetration enhancers. A survey of recent patent documents was conducted by using the Espacenet patent database including the terms “skin” in the title and “promot* or enhanc* and penetrat* or absorp* or permeat*” and “nano*” with the truncation symbol (*) in the abstract of documents. A total of 110 patents were published from 2008 to 2018, with 94 technologies being considered. The results demonstrated an increase in innovations concerning nanotechnologybased delivery systems as skin penetration enhancers in recent years. Most patent applicants are from China (60.6%) and Korea (21.3%), and companies (68%) were the most prominent owners. The majority of patent applications (76%) were intended for cosmetic purposes; the types of products and nanostructures were also investigated. Overall results demonstrated the increased interest around the world in patenting products involving skin permeation promotion and nanotechnology for pharmaceutical and, mainly, for cosmetics purposes.

Keywords: Nanotechnology-based delivery systems, patents, penetration enhancers, skin delivery, cosmetic purposes, nanostructures.

Graphical Abstract
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