Abstract
Porous microneedles (MN) offer the advantage of allowing for higher dosage delivery because of their larger surface area and broader diffusion spread compared to topical delivery. In this study, porous MNs were fabricated using two-photon polymerization. We simulated the diffusion of fluorescein isothiocyanate (FITC)-dextran as a pseudo drug through the skin with and without the porous MN and proved that at a depth of 100?m in the dermis, the porous MN delivers over 4 times the concentration of FITC-dextran compared to topical delivery. We also performed an in vivo study on mouse skin by delivering a fast green FCF stain through a 5 × 5 array of porous MNs. The dye was successfully delivered, and the array remained intact after insertion.
Original language | English (US) |
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Title of host publication | 2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9798350303872 |
DOIs | |
State | Published - 2023 |
Event | 2023 IEEE SENSORS, SENSORS 2023 - Vienna, Austria Duration: Oct 29 2023 → Nov 1 2023 |
Publication series
Name | Proceedings of IEEE Sensors |
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ISSN (Print) | 1930-0395 |
ISSN (Electronic) | 2168-9229 |
Conference
Conference | 2023 IEEE SENSORS, SENSORS 2023 |
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Country/Territory | Austria |
City | Vienna |
Period | 10/29/23 → 11/1/23 |
Bibliographical note
Publisher Copyright:© 2023 IEEE.
Keywords
- drug delivery
- in-vivo
- microneedles
- simulation
ASJC Scopus subject areas
- Electrical and Electronic Engineering