Safety Evaluation of Stamp Type Digital Microneedle Devices in Hairless Mice
Annals of Dermatology
; : 46-53, 2013.
Article
em En
| WPRIM
| ID: wpr-66350
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND: Microneedles provide a minimally invasive means to transport molecules into the skin. A number of specific strategies have been employed to use microneedles for transdermal delivery. OBJECTIVE: The purpose of this study was to investigate the safety of two new digital microneedle devices (Digital Hand(R) and Digital Pro(R); Bomtech Electronics Co., Ltd., Seoul, Korea) for the perforation of skin in skin-hairless-1 mice. This device replaces conventional needles and is designed specifically for intradermal delivery. METHODS: We used two newly developed digital microneedle devices to perforate the skin of skin-hairless-1 mice. We conducted a comparative study of the two digital microneedle devices and DTS(R) (Disk type-microneedle Therapy System; DTS lab., Seoul, Korea). To evaluate skin stability, we performed visual and dermatoscopic inspections, measurements of transepidermal water loss, and biopsies. RESULTS: The two novel digital microneedle devices did not induce significant abnormalities of the skin on visual or dermatoscopic inspection, regardless of needle size (0.25~2.0 mm). No significant histopathological changes, such as inflammatory cell infiltration, desquamation of the stratum corneum, or disruption of the basal layer, were observed. The digital microneedle devices and microneedle therapy system produced similar results on measures of skin stability. CONCLUSION: These two novel digital microneedle devices are safe transdermal drug delivery systems.
Palavras-chave
Texto completo:
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Base de dados:
WPRIM
Assunto principal:
Piridinas
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Pele
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Tiazóis
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Perda Insensível de Água
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Sistemas de Liberação de Medicamentos
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Eletrônica
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Elétrons
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Mesoterapia
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Camundongos Pelados
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Agulhas
Limite:
Animals
Idioma:
En
Revista:
Annals of Dermatology
Ano de publicação:
2013
Tipo de documento:
Article