323 citations
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April 2006 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that 40 nm nanoparticles can effectively penetrate into hair follicles and epidermal Langerhans cells in human skin samples, potentially enabling efficient transcutaneous vaccine delivery.
253 citations
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June 2004 in “Journal of Controlled Release” The research observed that 40-nm self-assembled nanoparticles enhanced minoxidil penetration in hairy guinea pig skin compared to 130-nm nanoparticles, but this size effect was absent in hairless skin.
181 citations
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July 2004 in “Journal of controlled release” In this study, researchers found that in hairy guinea pig skin, minoxidil delivered via 40-nm nanoparticles had higher skin penetration than 130-nm nanoparticles, indicating nanoparticle size affects permeation.
151 citations
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November 2018 in “International Journal of Pharmaceutics” This review discusses various nanoparticles and nanoemulsions being investigated for transdermal drug delivery and reports no clinical results; it highlights potential applications in treating alopecia, wound healing, psoriasis, and melanoma.
130 citations
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August 2020 in “Drug Design Development and Therapy” This review discusses various nanoparticles used to enhance skin permeation and target delivery to skin organelles, but reports no new experimental results.