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Polymeric Microneedle Array Fabrication by Photolithography
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Rapidly Separable Micropillar Integrated Dissolving Microneedles.

Chung-Ryong Jung1, Shayan Fakhraei Lahiji1, Youseong Kim1

  • 1Nanobiotechnology Laboratory, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.

Pharmaceutics
|June 27, 2020
PubMed
Summary
This summary is machine-generated.

Separable dissolving microneedle (DMN) patches offer efficient transdermal drug delivery. This innovative design ensures complete DMN insertion, minimizing skin injury for a safer, patient-friendly biopharmaceutical delivery system.

Keywords:
biodegradable microneedlemicropillar integrated microneedlenon-invasive micropillarseparable microneedletransdermal drug delivery

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Area of Science:

  • Biomaterials Science
  • Drug Delivery Systems
  • Dermatology

Background:

  • Dissolving microneedle (DMN) patches are advanced transdermal systems for biopharmaceuticals.
  • Skin stiffness and elasticity often impede DMN insertion, reducing drug delivery efficiency.
  • Existing micropillar-integrated DMNs can cause skin injury and inflammation due to pillar insertion.

Purpose of the Study:

  • To develop a novel separable micropillar integrated DMN (SPDMN) system.
  • To enhance DMN insertion efficiency while minimizing skin damage.
  • To create a safe, quick, and effective DMN-based drug delivery platform.

Main Methods:

  • Development of a separable micropillar integrated DMN (SPDMN) with a safety ring.
  • Evaluation of SPDMN insertion efficiency across the skin.
  • Assessment of skin injury and inflammation post-application.
  • Testing of immediate detachment capability post-application.

Main Results:

  • The SPDMN system demonstrated high efficiency in inserting DMNs across the skin.
  • The integrated safety ring significantly minimized the risk of skin injury and inflammation.
  • The SPDMN allowed for immediate detachment post-application, leaving DMNs implanted.
  • The novel design overcomes limitations of previous DMN and micropillar systems.

Conclusions:

  • The separable micropillar integrated DMN (SPDMN) is a safe and efficient platform for transdermal biopharmaceutical delivery.
  • This technology improves upon existing DMN systems by ensuring complete insertion and reducing adverse skin reactions.
  • SPDMNs represent a significant advancement in patient-friendly drug delivery, offering a quick and effective solution.