Fabrication and Characterization of Insulin Microneedle
DC Field | Value | Language |
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dc.contributor.advisor | 박영준 | - |
dc.contributor.author | 조세림 | - |
dc.date.accessioned | 2025-01-25T01:36:08Z | - |
dc.date.available | 2025-01-25T01:36:08Z | - |
dc.date.issued | 2023-08 | - |
dc.identifier.other | 32823 | - |
dc.identifier.uri | https://dspace.ajou.ac.kr/handle/2018.oak/24653 | - |
dc.description | 학위논문(석사)--글로벌제약임상약학과,2023. 8 | - |
dc.description.abstract | 본 연구의 목적은 hyaluronic acid가 기반이 된 insulin microneedle을 개발하고 이의 특성 및 효능을 평가하는 것이다. Microneedle은 최소 침습적이고 통증이 없는 방식으로 피부 각질층을 통해 insulin을 전달 할 수 있다. <br>이 문헌에서는 insulin을 함유한 dissolving microneedle에서 단백질 전달을 위한 microneedle의 포괄적인 특성 및 연구를 진행하였다. 우리의 dissolving microneedle은 생분해성 소재 중 하나인 hyaluronic acid를 포함하는 생분해성 약물전달시스템이다. Microneedle의 형태는 주사전자현미경과 실체현미경을 사용하여 관찰한 결과 약 625 μm의 길이를 나타냈다. 또한, 체외방출 연구를 통해 insulin이 microneedle에서 90분 이후에는 완전히 방출된다는 것이 입증됐다. <br>이후, 생체 내 혈당강하 연구를 통해 insulin microneedle은 최대 혈당강하시점이 1-2시간 이내로 피하주사와 동일하게 나타난다는 것을 확인했다. <br>따라서, 본 연구의 결과는 microneedle이 당뇨병 치료를 위한 유망한 방법이며, 효과적이고 안전한 경피 insulin 전달 방법임을 시사한다. | - |
dc.description.tableofcontents | Ⅰ. Introduction 1 <br>Ⅱ. Material and Method 5 <br> A. Materials 5 <br> B. Methods 5 <br> 1. Fabrication of PDMS mold 5 <br> 2. Preparation of formulation 5 <br> 3. Preparation of insulin microneedles 7 <br> 4. Morphology of microneedles 7 <br> 5. Axial force test of microneedles 7 <br> 6. In vitro skin insertion test 8 <br> 7. Dissolving test of microneedles with and without insulin 10 <br> 8. Analysis of the insulin content and homogeneity 10 <br> 9. In vitro drug release profile of insulin microneedles 10 <br> 10. In vivo transdermal delivery of microneedles 12 <br>Ⅲ. Results 13 <br> A. Morphology of microneedles 13 <br> B. Mechanical properties of microneedles 13 <br> 1. Axial force of microneedles 13 <br> 2. Insertion ratio of microneedles 17 <br> C. Solubility of microneedles in agarose gel 20 <br> D. Analysis of the insulin content and homogeneity 23 <br> E. In vitro drug release profile of microneedles 23 <br> F. In vivo drug release profile of microneedles 23 <br>Ⅳ. Discussion 28 <br>Ⅴ. Conclusions 30 <br>Ⅵ. References 31 <br>Korean Abstract 35 | - |
dc.language.iso | eng | - |
dc.publisher | The Graduate School, Ajou University | - |
dc.rights | 아주대학교 논문은 저작권에 의해 보호받습니다. | - |
dc.title | Fabrication and Characterization of Insulin Microneedle | - |
dc.type | Thesis | - |
dc.contributor.affiliation | 아주대학교 대학원 | - |
dc.contributor.department | 글로벌제약임상대학원 글로벌제약임상약학과 | - |
dc.date.awarded | 2023-08 | - |
dc.description.degree | Master | - |
dc.identifier.localId | T000000032823 | - |
dc.identifier.url | https://dcoll.ajou.ac.kr/dcollection/common/orgView/000000032823 | - |
dc.subject.keyword | Diabetes | - |
dc.subject.keyword | Hyaluronic acid | - |
dc.subject.keyword | Insulin | - |
dc.subject.keyword | Microneedle | - |
dc.subject.keyword | Transdermal delivery system | - |
dc.description.alternativeAbstract | The purpose of this study is to develop a hyaluronic acid-based insulin microneedle and to evaluate its morphological characteristic, axial force, release rate and amount. Microneedles can deliver insulin through the stratum corneum of the skin in a minimally invasive and painless manner. <br>We conducted a comprehensive characterization and development of microneedles for protein delivery in an insulin containing dissolving microneedle. Our dissolving microneedles constitute a biodegradable drug delivery system incorporating hyaluronic acid, one of the biodegradable materials used in this study. The shape of the microneedle was examined using a scanning electron microscope and a stereo microscope, revealing a length of approximately 625 μm. In addition, in vitro release studies demonstrated complete insulin release from the microneedle within 90 minutes. <br>Subsequently, through in vivo blood glucose lowering studies, it was confirmed that the insulin microneedle achieved the same maximum blood glucose reduction within 1–2 hours as a subcutaneous injection. <br>Overall, the findings of this study suggest that this microneedle a promising method for the treatment of diabetes, serving as an effective and safe transdermal insulin delivery method. | - |
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