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A novel multilayer antimicrobial urinary catheter material with antimicrobial properties.
Mater Adv
December 2024
Cardiff University School of Pharmacy and Pharmaceutical Sciences, Redwood Building King Edward VII Ave Cardiff CF10 3NB UK
Urinary catheters are commonly used in medical practice to drain and monitor urine of patients. However, urinary catheterisation is associated with the risk of developing catheter-associated urinary tract infections (CAUTIs), which can result in life-threatening sepsis that requires antibiotics for treatment. Using the layer-by-layer (LbL) technique, we assembled a multilayer catheter comprising nine quadruple layers (9QL) of alginate, chlorhexidine (CHX), alginate and poly(β-amino ester) (PBAE) built upon an amino-functionalised silicone.
View Article and Find Full Text PDFThree-dimensional spiral-shaping method of microcatheter for paraclinoid aneurysms: assessment using silicone models.
Nagoya J Med Sci
November 2024
Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Selecting an appropriate microcatheter tip shape for paraclinoid aneurysms is difficult. Therefore, we devised an original simple and uniform three-dimensional (3D) spiral-shaping method of microcatheter and validated the characteristics and usefulness of this method for coil embolization of paraclinoid aneurysms using patient-specific silicone models. These silicone models were produced based on clinical data from four patients with four paraclinoid aneurysms that underwent endovascular treatment using the 3D spiral-shaping method.
View Article and Find Full Text PDFEffect of crystallization and finish line curvature on the marginal integrity of lithium disilicate crowns.
J Prosthodont
January 2025
Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Gangneung, South Korea.
Purpose: This study aimed to investigate the effect of crystallization and finish line curvature on the integrity of lithium disilicate crowns fabricated by using partially crystallized (P) and fully crystallized (F) blocks.
Materials And Methods: Forty-eight lithium disilicate crowns were fabricated based on the designated lithium disilicate blocks and finish line curvatures. The specimens were divided into four groups (n = 12 each): P block with a curved finish line (PC), P block with a straight finish line (PS), F block with a curved finish line (FC), and F block with a straight finish line (FS).
Comparative evaluation of removal of oil-based calcium hydroxide intracanal medicaments with two calcium chelators: An cone-beam computed tomography volumetric analysis.
J Conserv Dent Endod
November 2024
Department of Conservative Dentistry and Endodontics, Chhattisgarh Dental College and Research Institute, Rajnandgaon, Chhattisgarh, India.
Background: Intracanal medicament (ICM) eliminates remaining bacteria and their toxins that were not removed by chemomechanical preparation during endodontic treatment.
Aim: The aim of this study was to compare and evaluate the removal of ozonated oil-based, silicone oil-based, and distilled water-based ICM with two calcium chelators, i.e.
Development and characterization of silicone-based tissue phantoms for pulse oximeter performance testing.
J Biomed Opt
June 2024
Food and Drug Administration, Center for Devices and Radiological Health, Silver Spring, Maryland, United States.
Significance: Pulse oximeter measurements are commonly relied upon for managing patient care and thus often require human testing before they can be legally marketed. Recent clinical studies have also identified disparities in their measurement of blood oxygen saturation by race or skin pigmentation.
Aim: The development of a reliable bench-top performance test method based on tissue-simulating phantoms has the potential to facilitate pre-market assessment and the development of more accurate and equitable devices.
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