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Optical Biosensors

Nano Tech-mod

Inverse Opal (IO), with biocompatibility, can be applied to optical nanostructures for better vision. For instance, the deformable and conformal silk hydrogel inverse opals may provide night vision or IR vision to humans. The hydrogel silk is produced with molucules under UV exposure. 

Course: SCI 6477 Nano Micro Macro: Adaptive Material Laboratory (with SEAS)
Instructor: Jonathan Grinham, Joanna Aizenberg
Collaborator: Shuyue Li, Xing Zhao
Date: Mar., 2021

KEYWORDS:
Inverse Opal, Nanostructure, Night Vision Enhance

OBJECTIVES

Photonic crystals are composed of porous nanostructures. The small feature size of these structures can be designed for a myriad of uses, from structural color to tunable wetting.

Concept
 

Inverse Opal (IO), with biocompatibility, can be applied to optical nanostructures for better vision. For instance, the deformable and conformal silk hydrogel inverse opals may provide night vision or IR vision to humans. The hydrogel silk is produced with molucules under UV exposure. One of the precedent is the tapetum lucidum of the cat which can reflect the incoming light to the retina, enhancing visibility. Inspired by this, we want to explore artificial ocular prostheses to complement human night vision.





Deformable silk hydrogel inverse opal (SHIO)



 

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Applications
 

Reference: K. Min, S. Kim, and S. Kim, “Deformable and conformal silk hydrogel inverse opal,” Proc. Natl. Acad. Sci., vol. 114, no. 24, pp. 6185–6190, Jun. 2017, doi: 10.1073/pnas.1701092114

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Fabrication & Simulation
 

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Artificial ocular prostheses

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Visibility intensification

Fabrication Gallery
 

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