Development of cup shaped microneedle array for transdermal drug delivery.

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

Biointerphases

journal_title

Biointerphases

authors

Vinayakumar KB,Hegde GM,Ramachandra SG,Nayak MM,Dinesh NS,Rajanna K

doi

10.1116/1.4919779

subject

Has Abstract

pub_date

2015-06-08 00:00:00

pages

021008

issue

2

eissn

1934-8630

issn

1559-4106

journal_volume

10

pub_type

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