Aim: The aim was to compare and evaluate the efficacy of electrochemically activated water (ECA) against maleic acid, Mixture of tetracycline, acid and detergent. ie; 3% doxycycline, 4.25% citric acid, and 0.5% Tween 80 detergent (MTAD), Sodium hypochlorite (NaOCl), and saline as root canal irrigants in removing the smear layer.
Materials And Methods: Twenty single canal mandibular premolars were randomly divided into five groups ( = 4), decoronated, prepared to working length, and instrumented till F3 using protaper gold rotary files. Each group was assigned a different irrigant. Saline-negative control and NaOCl-positive control. Teeth were sectioned and subjected to Scanning Electron Microscopic analysis. ECA was prepared using a custom-made apparatus having two chambers of capacity 50 ml each separated by a polymer membrane. About 40 ml of tap water was collected in each chamber. Two graphite electrodes were connected to the top of the compartments, linked to a power supply which initiates electrolysis, and the solutions obtained in anodic and cathodic compartments were collected. Statistical analysis was done using one-way ANOVA and Tukey analysis.
Results: NaOCl, maleic acid, and ECA had similar smear layer removal efficacy. MTAD was less efficient than the other irrigants tested. Saline did not remove the smear layer.
Conclusion: Electrochemically activated water has promising smear layer removal efficacy and is comparable with conventional root canal irrigants.
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http://dx.doi.org/10.4103/JCD.JCD_488_20 | DOI Listing |
Adv Mater
January 2025
School of Chemical and Biomolecular Engineering, The University of Sydney, Darlington, New South Wales, 2006, Australia.
Oxygen evolution reaction (OER) is a cornerstone of various electrochemical energy conversion and storage systems, including water splitting, CO/N reduction, reversible fuel cells, and rechargeable metal-air batteries. OER typically proceeds through three primary mechanisms: adsorbate evolution mechanism (AEM), lattice oxygen oxidation mechanism (LOM), and oxide path mechanism (OPM). Unlike AEM and LOM, the OPM proceeds via direct oxygen-oxygen radical coupling that can bypass linear scaling relationships of reaction intermediates in AEM and avoid catalyst structural collapse in LOM, thereby enabling enhanced catalytic activity and stability.
View Article and Find Full Text PDFAdv Mater
January 2025
International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, P. R. China.
Electrochemical reduction of CO to value-added multicarbon (C) productions offers an attractive route for renewable energy storage and CO utilization, but it remains challenging to achieve high C selectivity at industrial-level current density. Herein, a MoCu single-atom alloy (SAA) catalyst is reported that displays a remarkable C Faradaic efficiency of 86.4% under 0.
View Article and Find Full Text PDFSci Rep
January 2025
I-Form Advanced Manufacturing Research Centre, Dublin City University, Dublin, Ireland.
In the realm of materials science and engineering, the pursuit of advanced materials with tailored properties has been a driving goal behind technological progress. Scientific interest in laser powder bed fusion (L-PBF) fabricated NiTi alloy has in recent times seen an upsurge of activity. In this study, we investigate the impact of varying volume energy density (VED) during L-PBF on the microstructure and corrosion behaviour of NiTi alloys in both scan (XY) and built (XZ) planes.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer Materials and Technology, MOE Engineering Research Center of Photoresist Materials, Jiangsu Key Laboratory of Advanced Organic Materials, Tianchang New Materials and Energy Technology Research Center, Institute of Green Chemistry and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China. Electronic address:
Due to its exceptional electronic properties and catalytic activity, MoC has garnered significant attention for its application in electrocatalysis, particularly for the hydrogen evolution reaction (HER). However, several critical challenges continue to impede its widespread use, especially under strongly alkaline conditions. A primary obstacle is the enhancement of its intrinsic activity through further modification strategies, which remains a key limitation for its broader utilization.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130 PR China. Electronic address:
Iron phthalocyanine (FePc) is a promising non-noble metal catalyst for oxygen reduction reaction (ORR). While, with the plane-symmetric FeN site, the ORR activity of FePc is generally low due to its low ability to adsorb and activate O. Herein, we anchor FePc on Mg(OH)/N-doped carbon nanosheets building the ternary plate-like catalyst FePc/Mg(OH)/NC.
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