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Related Concept Videos

Subviral Agents01:29

Subviral Agents

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Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
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Luminescent polyelectrolytes with antiviral activity.

E F Panarin1, A I Fischer1,2, N A Nesterova1

  • 1Institute of Macromolecular Compounds, Russian Academy of Sciences, 31 Bol'shoy prosp. V. O., 199004 St. Petersburg, Russian Federation.

Russian Chemical Bulletin = Izvestiia Akademii Nauk. Seriia Khimicheskaia
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Summary

New polymers synthesized using sodium styrenesulfonate (NaSS), 4-methacryloylamidosalicylic acid (MASA), and N-vinylpyrrolidone exhibit antiviral properties. These polymers form luminescent complexes with terbium (Tb3+) ions, showing potential as biosensors.

Keywords:
4-methacryloylamidosalicylic acidantiviral activitylanthanidesluminescent metal-polymer complexessodium polystyrenesulfonate

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Biotechnology

Background:

  • Developing novel polymers with biological activity is crucial for medical applications.
  • Antiviral agents are needed to combat viral infections like the human respiratory syncytial virus (hRSV).
  • Luminescent materials offer potential for advanced diagnostic tools.

Purpose of the Study:

  • To synthesize and characterize novel (co)polymers with potential antiviral activity.
  • To investigate the interaction of these copolymers with terbium (Tb3+) ions.
  • To explore the luminescent properties of the resulting polymer-metal complexes for sensing applications.

Main Methods:

  • Radical polymerization was employed to synthesize copolymers of sodium styrenesulfonate (NaSS), 4-methacryloylamidosalicylic acid (MASA), and N-vinylpyrrolidone.
  • Cytotoxicity and antiviral activity against hRSV were evaluated.
  • Complexation with Tb3+ ions and subsequent luminescence studies were performed.

Main Results:

  • Synthesized copolymers demonstrated low cytotoxicity and significant antiviral activity against hRSV.
  • Complexes formed between the copolymers and Tb3+ ions exhibited strong luminescence in dilute aqueous solutions.
  • Luminescence intensity was influenced by copolymer composition, increasing with N-vinylpyrrolidone content.

Conclusions:

  • The developed Tb3+ polymer complexes are promising candidates for luminescent sensors.
  • These sensors can be utilized for visualizing biological objects that interact with the copolymers.
  • The study highlights the potential of functional polymers in antiviral therapy and bioimaging.