43-G: Low-Δn Photonic Crystal Biosensing and Intraocular Lens Coatings

Part of Project 43 — Labrador: Exploring commercial and scientific applications of synthetic labradorescence

Overview

Contains two proposals at different maturity levels: (1) disposable biosensor chips using low-Δn BCP photonic crystals for point-of-care diagnostics, and (2) a speculative concept for biosensing intraocular lens coatings. The fundamental physics question — whether Bloch Surface Waves at low Δn support useful surface sensitivity — must be answered first.

Status

Item	Status
Stage	Scientific/Conceptual
Transfer matrix modelling	Not yet performed
Prototype	None
Seeking	Thin-film optics, BSW physics, BCP fabrication, ophthalmology, clinical diagnostics

Key Idea

Published 1D photonic crystal biosensors use high-Δn (≥0.5) with few layers. The Bøggild architecture occupies the opposite corner: low Δn (0.008–0.1), high layer count (50–100+). This unexplored parameter space may offer a route to disposable, roll-to-roll manufactured biosensor chips.

Target Applications (Conditional)

• Point-of-care diagnostics
• Continuous intraocular glucose monitoring (speculative)

Document

📄 43-G_Biosensing_IOL_Formatted.docx — Full collaboration whitepaper :bookmark_tabs: 43-G_Biosensing_IOL_Formatted.pdf — PDF export

Author

Aaron Garcia · Independent Researcher · aaron@garcia.ltd

Licence

This work is released under the MIT Licence.