ArticleDrug delivery and translational research2025
Imiquimod nanocrystal-loaded dissolving microneedles prepared by DLP printing.
Article in Drug delivery and translational research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed, 13 citations in OpenAlex.
- Next-generation epidermal patches: Bridging 3D and multidimensional printing for biomedical and personal care innovations.Bioactive materials · 2026Review
- Biphasic Co-Delivery of Curcumin and 5-FU using 3D-Printed Dissolving Microneedles for Skin Cancer Therapy.Advanced healthcare materials · 2026Article
- Dissecting oral premalignant carcinogenesis: spatial omics mechanisms and nanomedicine-driven therapeutic innovation.Molecular cancer · 2026Review
- HPMA polymers as functional excipients in dermal nanoformulations of imiquimod.International journal of pharmaceutics: X · 2026Article
- Advances in 3D Printed Microneedles as a Prototype for Skin Targeted Therapeutics in Personalized Dermal Pharmaceuticals.AAPS PharmSciTech · 2025Review
- Mould-Free Microneedles in a Single Step: 3D Printing with Photopolymer Resins for Transdermal Delivery.Pharmaceutics · 2025Article
- Photopolymerization 3D-Printed Dual-Modal Flexible Sensor for Glucose and pH Monitoring.Sensors (Basel, Switzerland) · 2025Article
- Trends in Photopolymerization 3D Printing for Advanced Drug Delivery Applications.Biomacromolecules · 2025Review
- Microneedle-enhanced drug delivery: fabrication, characterization, and insights into release and permeation of nanocrystalline imiquimod.Frontiers in drug delivery · 2024Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The utilization of 3D printing- digital light processing (DLP) technique, for the direct fabrication of microneedles encounters the problem of drug solubility in printing resin, especially if it is predominantly composed of water. The possible solution how to ensure ideal belonging of drug and water-based printing resin is its pre-formulation in nanosuspension such as nanocrystals. This study investigates the feasibility of this approach on a resin containing nanocrystals of imiquimod (IMQ), an active used in (pre)cancerous skin conditions, well known for its problematic solubility and bioavailability. The resin blend of polyethylene glycol diacrylate and N-vinylpyrrolidone, and lithium phenyl-2,4,6-trimethylbenzoylphosphinate as a photoinitiator, was used, mixed with IMQ nanocrystals in water. The final microneedle-patches had 36 cylindrical microneedles arranged in a square grid, measuring approximately 600 μm in height and 500 μm in diameter. They contained 5wt% IMQ, which is equivalent to a commercially available cream. The homogeneity of IMQ distribution in the matrix was higher for nanocrystals compared to usual crystalline form. The release of IMQ from the patches was determined ex vivo in natural skin and revealed a 48% increase in efficacy for nanocrystal formulations compared to the crystalline form of IMQ.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.