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Related Concept Videos

X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...
Cryo-electron Microscopy01:28

Cryo-electron Microscopy

Conventional electron microscopy (EM) involves dehydration, fixation, and staining of biological samples, which distorts the native state of biological molecules and results in several artifacts. Also, the high-energy electron beam damages the sample and makes it difficult to obtain high-resolution images. These issues can be addressed using cryo-EM, which uses frozen samples and gentler electron beams. The technique was developed by Jacques Dubochet, Joachim Frank, and Richard Henderson, for...

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Crystallization of Membrane Proteins in Lipidic Mesophases
11:53

Crystallization of Membrane Proteins in Lipidic Mesophases

Published on: March 28, 2011

Liquid Crystalline Materials for Biological Applications.

Aaron M Lowe1, Nicholas L Abbott

  • 1Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706.

Chemistry of Materials : a Publication of the American Chemical Society
|May 8, 2012
PubMed
Summary
This summary is machine-generated.

Researchers are designing liquid crystal interfaces to detect biological interactions like proteins and cells. This enables new biosensor applications by linking biological events to material ordering changes.

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Last Updated: May 22, 2026

Crystallization of Membrane Proteins in Lipidic Mesophases
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Published on: March 28, 2011

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09:35

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Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
22:00

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases

Published on: November 21, 2010

Area of Science:

  • Biomaterials Science
  • Soft Matter Physics
  • Chemical Engineering

Background:

  • Liquid crystals traditionally respond to electrical and optical fields.
  • Recent research focuses on liquid crystals that interact with biological entities.
  • A key challenge is creating interfaces that link biological interactions to liquid crystal ordering.

Purpose of the Study:

  • This review summarizes advancements in designing liquid crystal interfaces for biological applications.
  • It highlights methods for coupling biological interactions to material ordering transitions.
  • The focus is on creating novel biosensing materials.

Main Methods:

  • Utilizing lipid assemblies for interface design.
  • Incorporating oligopeptides into polymeric membranes.
  • Employing cationic surfactant-DNA complexes.
  • Developing peptide-amphiphile structures.
  • Assembling proteins at interfaces.
  • Constructing multi-layer polymeric films.

Main Results:

  • Demonstrated success in tailoring liquid crystal interfaces for biological recognition.
  • Established methods to translate biological interactions into detectable ordering changes.
  • Showcased diverse approaches for creating bio-responsive liquid crystalline materials.

Conclusions:

  • Effective interface design is crucial for bio-responsive liquid crystals.
  • Various strategies enable coupling of biological events to liquid crystal ordering.
  • These advancements pave the way for sophisticated liquid crystal-based biosensors.