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Littérature scientifique sur le sujet « Calcium hydroxide NPs »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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Articles de revues sur le sujet "Calcium hydroxide NPs"

Purnomo, Agus, and Rodhiansyah Djayasinga. "Green synthesis of Ca(OH)2 nanoparticles from chicken eggshell waste as antibacterial agent." International Journal of Public Health Science (IJPHS) 14, no. 2 (2025): 927. https://doi.org/10.11591/ijphs.v14i2.23869.

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Chicken eggshell waste, though abundant in CaCO3 that can be converted into various products like calcium hydroxide nanoparticles (NPs), has received limited attention. This study aimed to synthesize calcium hydroxide NPs from eggshell waste and evaluate their antibacterial properties against Staphylococcus aureus and Escherichia coli. The researchers employed a top-down approach with thermal decomposition to produce environmental-friendly calcium hydroxide NPs, and conducted in vitro tests to assess their antibacterial activity, with and without exposure to sunlight. The minimum inhibitory co

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Tryfon, Panagiota, Ilektra Sperdouli, Julietta Moustaka, et al. "Hormetic Response of Photosystem II Function Induced by Nontoxic Calcium Hydroxide Nanoparticles." International Journal of Molecular Sciences 25, no. 15 (2024): 8350. http://dx.doi.org/10.3390/ijms25158350.

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In recent years, inorganic nanoparticles, including calcium hydroxide nanoparticles [Ca Ca(OH)2 NPs], have attracted significant interest for their ability to impact plant photosynthesis and boost agricultural productivity. In this study, the effects of 15 and 30 mg L−1 oleylamine-coated calcium hydroxide nanoparticles [Ca(OH)2@OAm NPs] on photosystem II (PSII) photochemistry were investigated on tomato plants at their growth irradiance (GI) (580 μmol photons m−2 s−1) and at high irradiance (HI) (1000 μmol photons m−2 s−1). Ca(OH)2@OAm NPs synthesized via a microwave-assisted method revealed a

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Alawaad, Mohammed Qasim, and Entisar Alabodi. "Improvement anti biological effect of Dycal® Calcium Hydroxide Liner cement by addition of ZnO NPs." Wasit Journal for Pure sciences 2, no. 2 (2023): 204–14. http://dx.doi.org/10.31185/wjps.153.

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Successful root canal therapy depends on preventing bacterial development during treatment sessions. The most frequent method for doing this is by using Dycal® Calcium Hydroxide, but some researchers have indicated that Dycal is ineffective in this area. This study aimed to evaluate the inhibitory effects of Dycal® Calcium Hydroxide based on Staphylococcus, E. coli, and Candida with those of zinc oxide nanoparticles generated by chemical and green synthesis. Characterization of the prepared samples utilizing FE-SEM, EDX, FTIR, and UV-Visible. The amorphous form and particle sizes of the ZnO NP

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Juimo Tchamdjou, Willy Hermann, Sophie Grigoletto, Frédéric Michel, Luc Courard, Toufik Cherradi, and Moulay Larbi Abidi. "Effects of Various Amounts of Natural Pozzolans from Volcanic Scoria on Performance of Portland Cement Mortars." International Journal of Engineering Research in Africa 32 (September 2017): 36–52. http://dx.doi.org/10.4028/www.scientific.net/jera.32.36.

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The aim of this paper is to assess the possibility of using natural pozzolans (NPs) from Cameroonian volcanic scoria as supplementary cementitious materials (SCMs) in the production of Portland cement mortars. Four natural pozzolans (Black Natural Pozzolan: BNP, Dark-Red Natural Pozzolan: DRNP, Red Natural Pozzolan: RNP and Yellow Natural Pozzolan: YNP) with 3600, 4500, 4700 and 5200 cm2/g Blaine fineness respectively were produced from different colors (Black, Dark red, Red and Yellow) volcanic scoria in a laboratory mill. Natural pozzolans were characterized with regard to particle size dist

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Patil, Rutuja, Ajit Hindlekar, Ganesh Ranganath Jadhav, S. R. Srinidhi, Anjali Gaikwad, and Siddharth Shinde. "Comparative evaluation of antimicrobial properties of calcium hydroxide-loaded polylactic-co-glycolic acid nanoparticles and calcium hydroxide: A systematic review and meta-analysis." Journal of Conservative Dentistry and Endodontics 28, no. 8 (2025): 727–33. https://doi.org/10.4103/jcde.jcde_294_25.

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Abstract Aim: The aim of the study was to evaluate the antimicrobial properties of calcium hydroxide (CH)-loaded polylactic-co-glycolic acid (PLGA) nanoparticles (NPs) and CH when used as an intracanal medicament (ICM). Methods: Adhering guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analysis, the review was registered in the Prospective Registration of Systematic Review-CRD42023454265. Databases from January 2000 to December 2023 were examined for studies evaluating the various properties of CH-loaded PLGA NPs compared to conventional ICM-CH. Using the Cochrane ri

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Vu, Hong, Mohd Khan, Ramakrishna Chilakala, et al. "Utilization of Lime Mud Waste from Paper Mills for Efficient Phosphorus Removal." Sustainability 11, no. 6 (2019): 1524. http://dx.doi.org/10.3390/su11061524.

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In this study, we utilized lime mud waste from paper mills to synthesize calcium hydroxide (Ca(OH)2) nanoparticles (NPs) and investigate their application for the removal of phosphorus from aqueous solution. The NPs, composed of green portlandite with hexagonal shape, were successfully produced using a precipitation method at moderately high temperature. The crystal structure and characterization of the prepared Ca(OH)2 nanoparticles were analyzed by field emission scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. The effects of Ca(OH)2 NP dosage and

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Alayed, Hajar S., Sandhanasamy Devanesan, Mohamad S. AlSalhi, Mohammed G. Alkindi, Osama G. Alghamdi, and Nasser R. Alqhtani. "Investigation of Antibacterial Activity of Carob-Mediated Calcium Hydroxide Nanoparticles against Different Aerobic and Anaerobic Bacteria." Applied Sciences 12, no. 24 (2022): 12624. http://dx.doi.org/10.3390/app122412624.

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Carob-mediated calcium hydroxide nanoparticles (C-CaOH2 NPs) are a type of NPs, newly developed via a green synthesis method, that have demonstrated good in vitro biocompatibility. However, their antibacterial potential has not yet been explored. Both calcium hydroxide and carob are known for their antibacterial potency as bulk materials; thus, we hypothesized that C-CaOH2 NPs may exhibit promising antibacterial efficacy. This study aimed to examine the antibacterial activity of C-CaOH2 NPs against aerobic and anaerobic strains using zone of inhibition (ZOI), minimum inhibitory concentration (

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Kazi, Fasiha Moin, Khurram Parvez, Asif Asghar, et al. "In Vitro Evaluation of the Influence of Biosynthesized Calcium Oxide Nanoparticles on the Antibacterial Activity, pH, Microleakage and Cytotoxicity of Conventional Intracanal Medicaments." International Journal of Molecular Sciences 25, no. 22 (2024): 11991. http://dx.doi.org/10.3390/ijms252211991.

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Intracanal medicaments are an important adjunct to the effective disinfection of the root canal system. However, conventional intracanal medicaments do not provide adequate protection against Enterococcus faecalis, which is the organism of interest in many cases of root canal failures. This study aimed to evaluate the influence of biosynthesized calcium oxide nanoparticles (CaO NPs) on the antibacterial activity, pH, microleakage and cytotoxicity of intracanal medicaments. CaO NPs were biosynthesized by the direct thermal decomposition of eggshells (EGS) and the reduction of calcium nitrate wi

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Taglieri, Giuliana, Valeria Daniele, and Ludovico Macera. "Synthesizing Alkaline Earth Metal Hydroxides Nanoparticles through an Innovative, Single-Step and Eco-Friendly Method." Solid State Phenomena 286 (January 2019): 3–14. http://dx.doi.org/10.4028/www.scientific.net/ssp.286.3.

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The objective of this paper is to introduce a patented and eco-friendly method to synthesize aqueous suspension of all types of alkaline-earth metal hydroxides nanoparticles (NPs). This method is based on an ion exchange process; the exchange takes place at ambient temperature/pressure, starts from cheap or renewable reagents and, in one single step, results in the creation of the crystalline desired nanoparticles in only a few minutes. In terms of structural and morphological features, the synthesized nanoparticles are characterized by means of XRD-Rietveld refinement, FTIR, and TEM. In parti

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Gupta, Alpa, Arundeep Singh, and Vivek Aggarwal. "Effect of nanoparticles on antibacterial efficacy of intracanal medicament: A scoping review." Endodontology 35, no. 4 (2023): 283–89. http://dx.doi.org/10.4103/endo.endo_262_22.

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ABSTRACT Aim: The aim of this scoping review is to highlight the effect of nanoparticles (NPs) when incorporated as an intracanal medicament to direct imminent research to understand the efficiency of NPs in clinical scenarios. Methods: A PubMed, Scopus, EBSCO host, and manual search were performed April 18, 2022. Inclusion criteria were set that had to be met by each study for it to be selected for the review. “The review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews Checklist.” Results: Ten in vitro studies tha

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Thèses sur le sujet "Calcium hydroxide NPs"

Camargo, Éricson Janolio de. "Influência do hidróxido de cálcio na penetração do cimento Epiphany TM nos túbulos dentinários e na adaptação às paredes do canal radicular: avaliação pela microscopia confocal de varredura a laser." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/25/25138/tde-30062009-153823/.

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Avaliou-se a influência do curativo intra-canal com pasta de hidróxido de cálcio na penetração do cimento EpiphanyTM no interior dos túbulos dentinários e na adaptação do cimento às paredes dos canais radiculares utilizando-se a microscopia confocal de varredura a laser (MCVL). Foram utilizados 30 incisivos centrais inferiores humanos, extraídos, com apenas um canal radicular. O acesso ao canal foi realizado de forma convencional utilizando-se pontas diamantadas montadas em alta rotação, sob refrigeração. Os canais foram preparados pela técnica progressiva empregando-se instrumentos manuais e

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Delgado, Ronan Jacques Rezende. "Avaliação in vitro da viabilidade de Enterococcus faecalis e Candida albicans nos túbulos dentinários após a aplicação de hidróxido de cálcio e clorexidina gel 2%." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/25/25138/tde-18102007-155525/.

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Uma infecção pulpar pode resultar na colonização microbiana de todo sistema de canais radiculares incluindo os túbulos dentinários. Estes microorganismos e seus produtos tóxicos são responsáveis pelo desenvolvimento e persistência da periodontite apical de origem endodôntica. O presente estudo objetivou avaliar a viabilidade de E. faecalis e C. albicans em túbulos dentinários após a aplicação de hidróxido de cálcio, clorexidina gel 2%, hidróxido de cálcio associado à clorexidina gel 2% e soro fisiológico, através da análise por cultura microbiológica e microscopia de fluorescência. Para tanto

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