Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Filtration

Filtration

Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Flow cell for high throughput Raman spectroscopy of non-transparent solutions.

Lab on a chip·2024

Same author

Resonant Laser Printing of Optical Metasurfaces.

Nano letters·2022

Same author

Selective Direct Laser Writing of Pyrolytic Carbon Microelectrodes in Absorber-Modified SU-8.

Micromachines·2021

Same author

On-Demand Reversible UV-Triggered Interpenetrating Polymer Network-Based Drug Delivery System Using the Spiropyran-Merocyanine Hydrophobicity Switch.

ACS applied materials & interfaces·2021

Same author

How good is your metalens? Experimental verification of metalens performance criterion.

Optics letters·2020

Same author

Biodegradable and Insoluble Cellulose Photonic Crystals and Metasurfaces.

ACS nano·2020

Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026

Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026

Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026

Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026

Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026

Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 29, 2026

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics

Published on: February 5, 2020

Nanofiltering via integrated liquid core waveguides.

Nimi Gopalakrishnan¹, Mads Brøkner Christiansen, Anders Kristensen

¹Department of Micro and Nanotechnology, DTU Nanotech, Technical University of Denmark, Kgs. Lyngby, Denmark.

|September 3, 2011

Summary

This summary is machine-generated.

Nanoporous liquid core waveguides effectively filter out scattering particles, enabling clear analysis of turbid solutions like milk. This technology significantly reduces optical loss, improving analytical capabilities for complex samples.

More Related Videos

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Related Experiment Videos

Last Updated: May 29, 2026

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics

Fabrication of Nanoheight Channels Incorporating Surface Acoustic Wave Actuation via Lithium Niobate for Acoustic Nanofluidics

Published on: February 5, 2020

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Area of Science:

Optics and Photonics
Materials Science
Analytical Chemistry

Background:

Turbid solutions pose challenges for optical analysis due to light scattering.
Integrated optical platforms are needed for efficient analysis of complex samples.

Purpose of the Study:

To demonstrate nanoporous liquid core waveguides as an integrated platform for analyzing turbid solutions.
To evaluate the particle exclusion and nanofiltering capabilities of these waveguides.

Main Methods:

Fabrication and characterization of nanoporous liquid core waveguides.
Optical loss measurements using milk (0.5% fat) at 633 nm.
Infiltration with Rhodamine B molecules (1 nm) and 22 nm polystyrene beads.
Analysis using fluorescence spectroscopy and fluorescence microscopy.

Main Results:

Nanoporous waveguides exhibited significantly lower optical propagation loss (0.05 dB/mm) compared to standard cuvettes (10.6 dB/mm) for turbid milk samples.
Fluorescence spectroscopy confirmed exclusion of 22 nm beads while allowing 1 nm Rhodamine B molecules to penetrate.
Fluorescence microscopy verified the homogenous distribution of Rhodamine B within the waveguide.

Conclusions:

Nanoporous liquid core waveguides offer an effective solution for analyzing turbid samples by excluding scattering particles.
The demonstrated nanofiltering capability makes these waveguides ideal for integrated optical analysis platforms.
Reduced optical loss and selective particle filtration enhance the utility of waveguides in analytical applications.