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Optical Control of Living Cells Electrical Activity by Conjugated Polymers

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Published on: January 28, 2016

Advancing Light-Driven Reactions with Surface-Modified Optical Fibers.

Zhe Zhao¹, Han Fu¹, Li Ling²

¹NSF Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, Arizona 85287-3005, United States.

Accounts of Chemical Research

|May 1, 2025

Summary

Surface-modified side-emitting optical fibers (SEOFs) offer efficient light delivery for water treatment and energy production. These innovative fibers enhance photocatalysis and disinfection, optimizing decentralized systems.

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Design and Fabrication of an Optical Fiber Made of Water

Design and Fabrication of an Optical Fiber Made of Water

Published on: November 8, 2018

Area of Science:

Materials Science and Engineering
Photochemistry
Environmental Engineering

Background:

Decentralized water treatment systems require efficient and innovative technologies.
Traditional photolysis and photocatalysis systems suffer from inefficiencies in light delivery and utilization.
Surface-modified side-emitting optical fibers (SEOFs) present a novel approach to enhance light-driven reactions.

Purpose of the Study:

To explore the chemical and physical concepts for scaling up SEOFs for engineered applications.
To investigate the optimization of SEOFs for visible to UV-C light wavelengths and photocatalyst integration.
To demonstrate the potential of SEOFs in water disinfection, pollutant degradation, and clean energy production.

Main Methods:

Fabrication of SEOFs with functionalized surfaces using polymer materials and nanoparticle compositions.
Integration of photocatalysts within porous polymer coatings on SEOF surfaces.
Characterization of light propagation, side-emission, and evanescent wave generation within SEOFs.

Main Results:

SEOFs enable efficient, controlled light delivery, maximizing photon utilization and minimizing energy loss compared to traditional systems.
UV-C SEOFs demonstrate effective germicidal disinfection by uniformly distributing UV-C energy to inactivate biofilms and pathogens.
SEOFs enhance photocatalytic degradation of pollutants using UV-A and visible light, improving reaction kinetics and quantum yields.
SEOFs facilitate decentralized production of clean energy resources like hydrogen and hydrogen peroxide.

Conclusions:

SEOFs represent a transformative technology for light-driven reactions in decentralized water treatment and energy production.
Advancements in polymer chemistry and nanoparticle engineering have optimized SEOF performance.
Future research should focus on catalyst loading optimization, emission uniformity, polymer durability, and system integration for broader adoption.