Abstract:
:Microneedle technology is one of the attractive methods in transdermal drug delivery. However, the clinical applications of this method are limited owing to: complexity in the preparation of multiple coating solutions, drug leakage while inserting the microneedles into the skin and the outer walls of the solid microneedle can hold limited quantity of drug. Here, the authors present the fabrication of an array of rectangular cup shaped silicon microneedles, which provide for reduced drug leakage resulting in improvement of efficiency of drug delivery and possibility of introducing multiple drugs. The fabricated solid microneedles with rectangular cup shaped tip have a total height of 200 μm. These cup shaped tips have dimensions: 60 × 60 μm (length × breadth) with a depth of 60 μm. The cups are filled with drug using a novel in-house built drop coating system. Successful drug dissolution was observed when the coated microneedle was used on mice. Also, using the above method, it is possible to fill the cups selectively with different drugs, which enables simultaneous multiple drug delivery.
journal_name
Biointerphasesjournal_title
Biointerphasesauthors
Vinayakumar KB,Hegde GM,Ramachandra SG,Nayak MM,Dinesh NS,Rajanna Kdoi
10.1116/1.4919779subject
Has Abstractpub_date
2015-06-08 00:00:00pages
021008issue
2eissn
1934-8630issn
1559-4106journal_volume
10pub_type
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