Mechanical and Physicochemical Properties of Newly Formed ZnO-PMMA Nanocomposites for Denture Bases

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Abstract

Aim: The aim of this study was to investigate the selected properties of zinc oxide- polymethyl methacrylate (ZnO-PMMA) nanocomposites that can influence the microorganism deposition on their surface. Materials and Methods: Non-commercial ZnO-NPs were prepared, characterized and used for the preparation of PMMA nanocomposite. Roughness, absorbability, contact angle and hardness of this new nanomaterial were evaluated. PMMA without ZnO-NPs served as control. Outcomes: Compared to unenriched PMMA, incorporation of ZnO-NPs to 7.5% for PMMA nanocomposite increases the hardness (by 5.92%) and the hydrophilicity. After modification of the material with zinc oxide nanoparticles the roughness parameter did not change. All tested materials showed absorption within the range of 1.82 to 2.03%, which meets the requirements of International Organization for Standardization (ISO) standards for denture base polymers. Conclusions: The results showed no significant deterioration in the properties of acrylic resin that could disqualify the nanocomposite for clinical use. Increased hydrophilicity and hardness with absorbability within the normal range can explain the reduced microorganism growth on the denture base, as has been proven in a previous study.

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Zener model description of ferromagnetism in zinc-blende magnetic semiconductors

Dietl, Ohno, Matsukura … (2000)

Ferromagnetism in manganese compound semiconductors not only opens prospects for tailoring magnetic and spin-related phenomena in semiconductors with a precision specific to III-V compounds but also addresses a question about the origin of the magnetic interactions that lead to a Curie temperature (T(C)) as high as 110 K for a manganese concentration of just 5%. Zener's model of ferromagnetism, originally proposed for transition metals in 1950, can explain T(C) of Ga(1-)(x)Mn(x)As and that of its II-VI counterpart Zn(1-)(x)Mn(x)Te and is used to predict materials with T(C) exceeding room temperature, an important step toward semiconductor electronics that use both charge and spin.

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Biomedical applications of zinc oxide nanomaterials.

Y. Zhang, T Nayak, H H Hong … (2013)

Nanotechnology has witnessed tremendous advancement over the last several decades. Zinc oxide (ZnO), which can exhibit a wide variety of nanostructures, possesses unique semiconducting, optical, and piezoelectric properties hence has been investigated for a wide variety of applications. The most important features of ZnO nanomaterials are low toxicity and biodegradability. Zn(2+) is an indispensable trace element for adults (~10 mg of Zn(2+) per day is recommended) and it is involved in various aspects of metabolism. Chemically, the surface of ZnO is rich in -OH groups, which can be readily functionalized by various surface decorating molecules. In this review article, we summarized the current status of the use of ZnO nanomaterials for biomedical applications, such as biomedical imaging (which includes fluorescence, magnetic resonance, positron emission tomography, as well as dual-modality imaging), drug delivery, gene delivery, and biosensing of a wide array of molecules of interest. Research in biomedical applications of ZnO nanomaterials will continue to flourish over the next decade, and much research effort will be needed to develop biocompatible/biodegradable ZnO nanoplatforms for potential clinical translation.

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PMMA denture base material enhancement: a review of fiber, filler, and nanofiller addition

Mohammed Gad, Shaimaa M. Fouda, Fahad Al-Harbi … (2017)

This paper reviews acrylic denture base resin enhancement during the past few decades. Specific attention is given to the effect of fiber, filler, and nanofiller addition on poly(methyl methacrylate) (PMMA) properties. The review is based on scientific reviews, papers, and abstracts, as well as studies concerning the effect of additives, fibers, fillers, and reinforcement materials on PMMA, published between 1974 and 2016. Many studies have reported improvement of PMMA denture base material with the addition of fillers, fibers, nanofiller, and hybrid reinforcement. However, most of the studies were limited to in vitro investigations without bioactivity and clinical implications. Considering the findings of the review, there is no ideal denture base material, but the properties of PMMA could be improved with some modifications, especially with silanized nanoparticle addition and a hybrid reinforcement system.

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Journal ID (nlm-ta): Nanomaterials (Basel)

Journal ID (iso-abbrev): Nanomaterials (Basel)

Journal ID (publisher-id): nanomaterials

Title: Nanomaterials

Publisher: MDPI

ISSN (Electronic): 2079-4991

Publication date (Electronic): 06 May 2018

Publication date Collection: May 2018

Volume: 8

Issue: 5

Electronic Location Identifier: 305

Affiliations

[1 ]Department of Prosthodontics, Medical University of Warsaw, 02-006 Warsaw, Poland; adam.kolenda@ 123456poczta.fm (A.K.); elzbieta.mierzwinska-nastalska@ 123456wum.edu.pl (E.M.-N.)

[2 ]Faculty of Materials Science and Engineering, Warsaw University of Technology, 02-504 Warsaw, Poland; izabela.osica@ 123456gmail.com (I.O.); Krzysztof.kurzydlowski@ 123456pw.edu.pl (K.K.)

[3 ]World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan; ARIGA.Katsuhiko@ 123456nims.go.jp

[4 ]Institute of High Pressure Physics, Polish Academy of Sciences, 01-142 Warsaw, Poland; jacek.wojnarowicz@ 123456tlen.pl (J.W.); w.lojkowski@ 123456labnano.pl (W.Ł.)

[5 ]Division of Silicon Microsystem and Nanostructure Technology, Institute of Electron Technology, 02-668 Warsaw, Poland; szmigiel@ 123456ite.waw.pl

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[* ]Correspondence: mariusz.cierech@ 123456wp.pl ; Tel.: +48-22-502-18-86

Author information

Izabela Osica https://orcid.org/0000-0002-6581-940X

Jacek Wojnarowicz https://orcid.org/0000-0002-6106-5188

Krzysztof Kurzydłowski https://orcid.org/0000-0002-6581-940X

Katsuhiko Ariga https://orcid.org/0000-0002-2445-2955

Article

Publisher ID: nanomaterials-08-00305

DOI: 10.3390/nano8050305

PMC ID: 5977319

PubMed ID: 29734781

SO-VID: 962504c5-b5bd-4e31-a6cb-58db6ed3e3e5

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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

Mechanical and Physicochemical Properties of Newly Formed ZnO-PMMA Nanocomposites for Denture Bases

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Photoluminescent Nanomaterials

Most cited references 40

Zener model description of ferromagnetism in zinc-blende magnetic semiconductors

Biomedical applications of zinc oxide nanomaterials.

PMMA denture base material enhancement: a review of fiber, filler, and nanofiller addition

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