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Author:

Li, Xu (Li, Xu.) | Li, Hui (Li, Hui.) | Wang, Zihao (Wang, Zihao.) | Wang, Xianda (Wang, Xianda.) | Zhang, Jinlong (Zhang, Jinlong.) | Bin, Fengjiao (Bin, Fengjiao.) | Chen, Wei (Chen, Wei.) | Li, Hongyang (Li, Hongyang.) | Huo, Dongmei (Huo, Dongmei.) | Xiao, Dengbao (Xiao, Dengbao.)

Indexed by:

EI Scopus SCIE

Abstract:

Efficient drug delivery is crucial for glaucoma patients. Flexible biomedical devices that enable sustained ocular drug delivery and can regulate the drug release rate according to physiological conditions are highly desirable for glaucoma treatments, addressing both low drug bioavailability and poor patient compliance from manual drug administration, and improving treatment outcomes. Inspired by the structure and reciprocating motion of fish dorsal fins, a drug-eluting contact lens based on deformable microstructures for non-invasive ocular surface drug delivery is developed. Liquid drugs are stored within the interstices of the deformable microstructural units, allowing for continuous drug release through diffusion upon contact with the ocular surface. Finite element analysis is utilized to study the intraocular drug transport dynamics of glaucoma and optimize the overall layout of the device. Microstructural units undergo deformation under loading, altering the interstitial spaces and modulating the drug release rate. This device can adaptively adjust its drug release rate based on changes in intraocular pressure (IOP) and can be proactively regulated in response to cyclic eye loads, accommodating elevated IOP caused by varying body postures and activities. As a flexible, non-invasive, highly dynamic, and adaptive drug delivery platform, it holds significant potential for future biomedical applications.

Keyword:

biomimetic microstructures non-invasive drug delivery flexible biomedical devices contact lens

Author Community:

  • [ 1 ] [Li, Xu]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
  • [ 2 ] [Li, Hui]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
  • [ 3 ] [Wang, Zihao]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
  • [ 4 ] [Wang, Xianda]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
  • [ 5 ] [Zhang, Jinlong]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
  • [ 6 ] [Bin, Fengjiao]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
  • [ 7 ] [Xiao, Dengbao]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
  • [ 8 ] [Chen, Wei]Beijing Univ Technol, Beijing 100124, Peoples R China
  • [ 9 ] [Li, Hongyang]Capital Med Univ, Beijing Friendship Hosp, Beijing 100050, Peoples R China
  • [ 10 ] [Huo, Dongmei]Shanghai East Hosp, Shanghai 200120, Peoples R China

Reprint Author's Address:

  • [Li, Xu]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China;;[Xiao, Dengbao]Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China;;[Chen, Wei]Beijing Univ Technol, Beijing 100124, Peoples R China

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Source :

ADVANCED SCIENCE

Year: 2024

Issue: 6

Volume: 12

1 5 . 1 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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