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Related Concept Videos

Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

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Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
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Evaluation of outcomes in kidney stone management: stone-free rate vs. cost vs. quality of life: a systematic review from EAU endourology.

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Reply to Zhihao Lei's Letter to the Editor re: Oliver Wiseman, Daron Smith, Kathryn Starr, et al. The PUrE Randomised Controlled Trial 1: Clinical and Cost-effectiveness of Flexible Ureterorenoscopy and Extracorporeal Shockwave Lithotripsy for Lower Pole Stones ≤10 mm. Eur Urol 2025;88:179-89.

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Related Experiment Video

Updated: Sep 21, 2025

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application
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Silicone vs. Polyurethane Stent: The Final Countdown.

Suresh Mathias1, Oliver Wiseman2

  • 1Locum Consultant Urologist, Royal Wolverhampton NHS Trust, Wolverhampton WV10 0QP, UK.

Journal of Clinical Medicine
|May 28, 2022
PubMed
Summary
This summary is machine-generated.

Silicone ureteric stents offer better patient tolerance compared to other materials. Further research is recommended to fully understand the benefits of these ureteral devices.

Keywords:
biofilmencrustationstent-associated symptomsureteral stents

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Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization
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Area of Science:

  • Urology
  • Biomaterials Science

Background:

  • Ureteric stents are common in urological procedures.
  • Patient tolerance varies significantly between different stent materials.
  • Optimal stent material selection impacts patient outcomes and comfort.

Purpose of the Study:

  • To compare the patient tolerability of silicone ureteric stents versus stents made from other materials.
  • To review existing literature on stent material properties and patient-reported outcomes.

Main Methods:

  • Systematic literature review.
  • Comparative analysis of studies focusing on ureteric stent materials and patient tolerance.

Main Results:

  • Silicone ureteric stents demonstrated superior patient tolerability in the reviewed literature.
  • Evidence suggests differences in inflammatory response and encrustation based on material.

Conclusions:

  • Silicone stents are generally better tolerated by patients undergoing ureteric stenting.
  • Additional research is necessary to confirm these findings and explore novel stent materials.