ArticleNano letters2018
Nanowires for Biosensing: Lightguiding of Fluorescence as a Function of Diameter and Wavelength.
Article in Nano letters, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Image analysis optimization for nanowire-based optical detection of molecules.Nanophotonics (Berlin, Germany) · 2025Article
- Review
- Comparative Kinetics of Supported Lipid Bilayer Formation on Silica Coated Vertically Oriented Highly Curved Nanowires and Planar Silica Surfaces.Nano letters · 2025Article
- Principles and Applications of ZnO Nanomaterials in Optical Biosensors and ZnO Nanomaterial-Enhanced Biodetection.Biosensors · 2024Review
- Allergen Microarrays and New Physical Approaches to More Sensitive and Specific Detection of Allergen-Specific Antibodies.Biosensors · 2024Review
- Sub-Nanomolar Detection of Oligonucleotides Using Molecular Beacons Immobilized on Lightguiding Nanowires.Nanomaterials (Basel, Switzerland) · 2024Article
- Fluorescence excitation enhancement by waveguiding nanowires.Nanoscale advances · 2023Article
- Enhanced Optical Biosensing by Aerotaxy Ga(As)P Nanowire Platforms Suitable for Scalable Production.ACS applied nano materials · 2022Article
- Through the Eyes of Creators: Observing Artificial Molecular Motors.ACS nanoscience Au · 2022Review
- Anisotropic Radiation in Heterostructured "Emitter in a Cavity" Nanowire.Nanomaterials (Basel, Switzerland) · 2022Article
- Robust neuronal differentiation of human iPSC-derived neural progenitor cells cultured on densely-spaced spiky silicon nanowire arrays.Scientific reports · 2021Article
- 3D fluorescence confocal microscopy of InGaN/GaN multiple quantum well nanorods from a light absorption perspective.Nanoscale advances · 2021Article
- Fluorescence Signal Enhancement in Antibody Microarrays Using Lightguiding Nanowires.Nanomaterials (Basel, Switzerland) · 2021Article
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Semiconductor nanowires can act as nanoscaled optical fibers, enabling them to guide and concentrate light emitted by surface-bound fluorophores, potentially enhancing the sensitivity of optical biosensing. While parameters such as the nanowire geometry and the fluorophore wavelength can be expected to strongly influence this lightguiding effect, no detailed description of their effect on in-coupling of fluorescent emission is available to date. Here, we use confocal imaging to quantify the lightguiding effect in GaP nanowires as a function of nanowire geometry and light wavelength. Using a combination of finite-difference time-domain simulations and analytical approaches, we identify the role of multiple waveguide modes for the observed lightguiding. The normalized frequency parameter, based on the step-index approximation, predicts the lightguiding ability of the nanowires as a function of diameter and fluorophore wavelength, providing a useful guide for the design of optical biosensors based on nanowires.
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