Long-term effects of different cleaning methods on copolyester retainer properties.

CONCLUSIONS: The results suggest that different cleaning methods affect long-term physical properties of the ACE retainer material. At the present time, none of these cleaning methods is ideal for copolyester retainer material. PMID: 30080124 [PubMed - as supplied by publisher]
Source: The Angle Orthodontist - Category: Dentistry Authors: Tags: Angle Orthod Source Type: research

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Authors: Zeng Q, Zhao L, Wang C, Gao M, Han X, Chen C, Tu C, Han P, Li J Abstract Background: A high prevalence of autoimmune thyroid disease (AITD) has been observed in patients with autoimmune liver disease (AILD); however, data on the clinical relationship between AILD and AITD remain scant. We aimed to evaluate the relationship between AILD and AITD.Methods: We performed a retrospective study using medical records from 324 patients with AILD, 113 of whom had concurrent AITD.Results: Patients with autoimmune hepatitis (AIH) were more likely to develop AITD (45.8%), followed by autoimmune hepatitis-primary biliar...
Source: Scandinavian Journal of Gastroenterology - Category: Gastroenterology Tags: Scand J Gastroenterol Source Type: research
Publication date: September 2020Source: Materials Today Communications, Volume 24Author(s): Łukasz Byczyński, Michał Dutkiewicz, Rafał Januszewski, Paulina Wrona, Barbara Pilch - PiteraAbstractIsocyanurate containing siloxane was employed for modification of high - solid epoxy coatings based on diglycidyl ether of bisphenol A, which were cured with isophorone diamine. The structure of the samples was investigated by FTIR spectroscopy. The thermal behavior was studied by differential scanning calorimetry and thermogravimetric analysis. Hydrophobicity of coatings was determined by contact angle measurements and by calcul...
Source: Materials Today Communications - Category: Materials Science Source Type: research
Publication date: Available online 22 February 2020Source: Journal of Materials Processing TechnologyAuthor(s): Suman Chatterjee, Ankit Kumar Pandey, Siba Sankar Mahapatra, Kanwer Singh Arora, Ajit BeheraAbstractWelding of nitinol (NiTi) shape memory alloy (SMA) and titanium-based alloy (Ti6Al4V) finds potential application in aerospace and medical industries. However, joining of these materials poses challenging issues because material properties of each material interacts to give rise to hybrid system performance. In the present study, copper was used as an intermediate layer to restrict the formation of brittle intermet...
Source: Journal of Materials Processing Technology - Category: Materials Science Source Type: research
Publication date: Available online 22 February 2020Source: Journal of Materials Research and TechnologyAuthor(s): Yaokun Pan, Jingtao Wang, Hongwei Cui, Rui Feng, Benkui Gong, Xingchuan Zhao, Ning Hou, Bangran Cui, Yurong Song, Tao YangAbstractBiodegradable microarc oxidation (MAO) coatings were prepared on the Mg-2.0Zn-0.5Ca alloys treated with and without deep cryogenic treatment (DCT). Scanning electron microscope (SEM) and X-ray diffractometer (XRD) were used to characterize the coating morphology and phase composition. The electrochemical corrosion behavior was investigated using the electrochemical workstation. The e...
Source: Journal of Materials Research and Technology - Category: Materials Science Source Type: research
Authors: Girish P, Jayanthi M, Gitanjali B, Manikandan S, Rajan S Abstract BACKGROUND: The medical and social impact of being overweight, as well as the difficulty in making long-term changes in diet, physical activity, and pitfalls associated with allopathic management, lure obese individuals to over-the-counter weight-loss herbal products (WHPs). However, the safety of herbals is questionable, as reports from all over the world suggest adulteration with synthetic weight loss agents. OBJECTIVE: The present study was carried out to develop a rapid and sensitive method to screen potential weight loss adulterants...
Source: Journal of Dietary Supplements - Category: Nutrition Tags: J Diet Suppl Source Type: research
Abstract We developed a paper-based analytical device based on the electropolymerization of poly (3,4-ethylenedioxythipohene) (PEDOT) and graphene oxide (GO) composites on the ITO substrate for the detection of uric acid (UA) in authentic human saliva. Scanning electron microscopy, UV-vis spectrum and X-ray diffraction confirmed the formation of porous PEDOT combined with GO film during the electropolymerization process. The nanocomposite based sensor showed an enhanced electrocatalytic activity toward UA with high sensitivity and stability. We demonstrate that UA can be directly detected in undiluted saliva using...
Source: Analytica Chimica Acta - Category: Chemistry Authors: Tags: Anal Chim Acta Source Type: research
-Piñeiro A Abstract Possibilities of room temperature spectrometry based on Mn-doped ZnS quantum dots coated with a molecularly imprinted polymer based nanosensor have been explored for the sensitive and selective determination of aflatoxins. Synthesized polymeric nanoparticles exhibit intense room temperature phosphorescence (total decay time of 0.004 s) and aflatoxins quench the room temperature phosphorescence when interact with the recognition cavities of the molecularly imprinted polymer attached to the phosphorescent quantum dots. Room temperature phosphorescence was recorded by scanning from 520...
Source: Analytica Chimica Acta - Category: Chemistry Authors: Tags: Anal Chim Acta Source Type: research
This study looked at the antiyeast activity of two chemically synthesised radish antimicrobial peptides, Rs-AFP1 and Rs-AFP2, for their inhibitory effect against different yeast species. The minimum inhibitory concentration (MIC) of both peptides was generated. Two mechanisms of action were studied (membrane permeabilisation and the overproduction of reactive oxygen species (ROS)) and both were found to occur with Rs-AFP2, while only the overproduction of ROS was detected for Rs-AFP1. The effect of the peptides on the yeast cells was also visualised by scanning electron microscopy. Their safety in terms of human consumptio...
Source: Food Control - Category: Food Science Source Type: research
Publication date: Available online 22 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Armstrong I. Omoregie, Enzo A. Palombo, Dominic E.L. Ong, Peter M. NissomAbstractProduction of urease enzyme from ureolytic bacteria (e.g. Sporosarcina pasteurii) is essential for precipitation of CaCO3. This bioprocess is notably utilized for soil improvement, biocementation and bioremediation of heavy metals. Despite the viability for field-scale implementation as a suitable alternative to conventional treatment methods, most reports in the literature are constrained to laboratory-scale. Thus, this study demon...
Source: Biocatalysis and Agricultural Biotechnology - Category: Biotechnology Source Type: research
Publication date: 15 May 2020Source: Journal of Molecular Structure, Volume 1208Author(s): L.S. Anju, D. Aruldhas, I. Hubert Joe, Nimmy L. JohnAbstractIn the present study, the structural and spectral analysis for comparative study of Methoxychlor and its related compounds calculations were performed with the help of DFT with B3LYP/6-311G(d,p) level of theory. The experimental results of FT-IR, FT-Raman were compared with computed results. Detailed interpretations of the vibrational spectra were carried out with the aid of NCA and vibrational wavenumber scaled by WLS method. The electron distributions in various bonding, a...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
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