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Related Concept Videos

Polymers02:34

Polymers

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The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
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Polymers02:34

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Conjugated Proteins02:50

Conjugated Proteins

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Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
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Conjugated Proteins02:50

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Conjugation01:19

Conjugation

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Conjugation is a form of horizontal gene transfer that primarily occurs in bacteria and some archaea, promoting genetic diversity and adaptation. Bacteria can acquire resistance genes through conjugative plasmids, allowing them to survive antibiotic treatments that would otherwise be lethal. This process involves direct contact between cells through specialized structures such as the sex pilus and is mediated by conjugative plasmids, including the F (fertility) factor.Conjugation requires...
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Mechanism of Conjugation01:19

Mechanism of Conjugation

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Bacterial conjugation is a mechanism of horizontal gene transfer that enables the exchange of genetic material between bacterial cells through direct contact. This process is facilitated by a donor cell carrying a conjugative plasmid, which encodes genes necessary for pilus formation, DNA replication, and transfer. The conjugative plasmid plays a central role in initiating and executing the transfer of genetic material.The tra region of the conjugative plasmid encodes proteins responsible for...
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Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

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Advances in Conjugated Polymer Lasers.

Hongyan Xia1, Chang Hu2, Tingkuo Chen3

  • 1Dongyuan Synergy Innovation Institute for Modern Industries of GDUT, Guangdong University of Technology, Guangzhou 510006, China. hyxia@gdut.edu.cn.

Polymers
|April 10, 2019
PubMed
Summary
This summary is machine-generated.

Conjugated polymer lasers offer high efficiency and tunability for organic lasers. Future research focuses on developing electro-pumped polymer lasers for advanced applications.

Keywords:
amplified spontaneous emissionconjugated polymerlaserphotoluminescence

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Area of Science:

  • Optics and Photonics
  • Materials Science
  • Organic Electronics

Background:

  • Conjugated polymers are promising gain materials for lasers due to high photoluminescence efficiencies and tunable wavelengths.
  • Organic lasers are an active research area, with significant advancements in conjugated polymer laser technology over the past decade.

Purpose of the Study:

  • To review recent progress in conjugated polymer lasers.
  • To discuss the photoluminescence and excitation mechanisms of conjugated polymers in laser applications.
  • To explore the influence of polymer structure on laser threshold and introduce common polymer laser materials.

Main Methods:

  • Literature review of recent advancements in conjugated polymer lasers.
  • Analysis of photoluminescence principles and excitation mechanisms.
  • Discussion on structure-property relationships affecting laser performance.

Main Results:

  • Conjugated polymers exhibit excellent properties for laser gain media, including high efficiency and wavelength tunability.
  • Recent breakthroughs have significantly advanced the field of conjugated polymer lasers.
  • The structure of conjugated polymers critically affects laser threshold characteristics.

Conclusions:

  • Conjugated polymer lasers are a rapidly developing field with significant potential.
  • Further research into electro-pumped conjugated polymer lasers is a promising future direction.
  • Understanding polymer structure-property relationships is key to optimizing laser performance.