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Related Concept Videos

Classification of Skeletal Muscle Fibers01:48

Classification of Skeletal Muscle Fibers

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Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
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Types of Skeletal Muscle Fibers01:32

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Skeletal muscles comprise various fibers, each with distinct characteristics and roles in movement and stability. They are mainly categorized into three types — fast-twitch, slow-twitch, and intermediate.
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The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering the cytoskeletal architecture around the 1960s, which allowed obtaining structural information at a high-resolution level. However, the sample preparation procedure often limits this ability in biological samples. Several protocols have been developed over the years to optimize sample preparation. In one of the protocols known as rotary...
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Colors and Magnetism03:02

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Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
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Channel Rhodopsins01:11

Channel Rhodopsins

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Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
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Fibrous Proteins00:55

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Fibrous proteins are either long and narrow proteins or assemble to form long and thin structures. They contain repetitive units and usually consist of either alpha helices or beta sheets and, in rare cases, a mix of both. The amino acids in the primary structure often consist of repeating amino acid sequences. The role of fibrous proteins is primarily structural. Many are located in the extracellular matrix and are present in connective tissues to impart strength and joint mobility. They are...
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Related Experiment Video

Updated: Apr 1, 2026

Fiber Type and Subcellular-Specific Analysis of Lipid Droplet Content in Skeletal Muscle
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Fiber Type and Subcellular-Specific Analysis of Lipid Droplet Content in Skeletal Muscle

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Mechanochromic Fibers with Structural Color.

Houpu Li1, Xuemei Sun2, Huisheng Peng3

  • 1State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China.

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
|October 1, 2015
PubMed
Summary

Mechanochromic photonic crystals offer tunable structural colors and are advancing into fiber forms for smart textiles. This review explores their mechanisms, fabrication, and potential in sensing and display applications.

Keywords:
displaysfibersmechanochromic materialsphotonic crystalsstructural color

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Area of Science:

  • Photonics and Materials Science: Focuses on light manipulation and material properties.

Background:

  • Responsive photonic crystals enable tunable structural colors by controlling light flow.
  • Mechanochromic photonic crystals are gaining traction due to ease of use, safety, and diverse applications.
  • The development of mechanochromic photonic crystal fibers addresses the growing demand in the wearable smart textile sector.

Purpose of the Study:

  • To summarize the fundamental mechanisms behind mechanochromic photonic crystals.
  • To review fabrication techniques for these advanced materials.
  • To highlight recent progress, particularly in fiber-based photonic crystals, for sensing and display.

Main Methods:

  • Review of existing literature on mechanochromic photonic crystals.
  • Analysis of fabrication methods for photonic crystal fibers.
  • Synthesis of recent advancements in the field.

Main Results:

  • Detailed explanation of how mechanical stimuli tune structural colors in photonic crystals.
  • Overview of various fabrication approaches for creating mechanochromic photonic crystal fibers.
  • Identification of key trends and challenges in the development of these materials.

Conclusions:

  • Mechanochromic photonic crystals, especially in fiber form, represent a significant advancement in tunable color technology.
  • These materials offer promising new avenues for smart textiles, wearable sensors, and advanced display solutions.
  • Further research into fabrication and application will drive innovation in responsive materials.