532 results match your criteria monolithic hybrid

Hybrid integrated mode-locked laser diodes with a silicon nitride extended cavity.

Opt Express 2021 May;29(10):15013-15022

Integrated semiconductor mode-locked lasers have shown promise in many applications and are readily fabricated using generic InP photonic integration platforms. However, the passive waveguides offered in such platforms have relatively high linear and nonlinear losses that limit the performance of these lasers. By extending such lasers with, for example, an external cavity, the performance can be increased considerably. Read More

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Towards highly specific aptamer-affinity monolithic column by efficient UV light-initiated polymerization in "one-pot".

Anal Chim Acta 2021 Jun 17;1165:338517. Epub 2021 Apr 17.

Institute of Food Safety and Environment Monitoring, Fuzhou University, Fuzhou, 350108, People's Republic of China; Engineering Technology Research Center on Reagent and Instrument for Rapid Detection of Product Quality and Food Safety, Fujian, Fuzhou, 350108, People's Republic of China.

Time-consuming or tedious operation in multiple-step process might is the obstacle for efficiently preparing aptamer-affinity monolithic column. Here, a new and facile strategy to prepare aptamer-based hybrid affinity monolith in "one-pot" at room temperature was exploited, in which UV light-initiated free-radical polymerization and "thiol-ene" click reaction were implemented simultaneously. Only 7 min was cost for finishing the polymerization reaction, which was only 1/100 of that for the traditional thermal polymerization. Read More

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Cucurbituril-Encapsulating Metal-Organic Framework via Mechanochemistry: Adsorbents with Enhanced Performance.

Angew Chem Int Ed Engl 2021 May 11. Epub 2021 May 11.

Universität Düsseldorf, Institut für Anorganische Chemie und Strukturchemie, Universitätsstr. 1, 40225, Düsseldorf, GERMANY.

The first examples of monolithic crystalline host-guest hybrid materials are described. The reaction of 1,3,5-benzenetricarboxylic acid (H 3 BTC) and Fe(NO 3 ) 3 ·9H 2 O in the presence of decamethyl-cucurbit[5]uril ammonium chloride (MC5·2NH 4 Cl·4H 2 O) directly afford MC5@MIL-100(Fe) hybrid monoliths featuring hierarchical micro-, meso- and macropores. Particularly, this "bottle-around-ship" synthesis and one-pot shaping are facilitated by a newly discovered Fe-MC5 flowing gel formed by mechanochemistry. Read More

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Preparation of a novel amino functionalized ion-imprinted hybrid monolithic column for the selective extraction of trace copper followed by ICP-MS detection.

Anal Chim Acta 2021 Jun 8;1162:338477. Epub 2021 Apr 8.

Technical Center for Industrial Product and Raw Material Inspection and Testing, Shanghai Customs, Shanghai, 200135, China. Electronic address:

In this work, a novel amino functionalized Cu(II) ion-imprinted organic-inorganic hybrid monolithic column (Cu(II)-IIHMC) was prepared via one-pot co-condensation and the combination of sol-gel and ion-imprinting techniques in a fused capillary. The Cu(II)-IIHMC was used as solid phase microextraction (SPME) matrix followed by inductively coupled plasma-mass spectrometry (ICP-MS) for the analysis of trace Cu(II). The prepared Cu(II)-IIHMC has good mechanical strength, stable imprinting sites and homogeneous structure of network skeleton with large flow-through pores by optimizing the synthesis process. Read More

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High Performance p-i-n Photodetectors on Ge-on-Insulator Platform.

Nanomaterials (Basel) 2021 Apr 27;11(5). Epub 2021 Apr 27.

Key Laboratory of Microelectronics Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China.

In this article, we demonstrated novel methods to improve the performance of p-i-n photodetectors (PDs) on a germanium-on-insulator (GOI). For GOI photodetectors with a mesa diameter of 10 μm, the dark current at -1 V is 2.5 nA, which is 2. Read More

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Tribological Performance of Composites Reinforced with the Agricultural, Industrial and Post-Consumer Wastes: A Review.

Materials (Basel) 2021 Apr 9;14(8). Epub 2021 Apr 9.

Institute of Machines and Motor Vehicles (IMRiPS), Poznan University of Technology, 60965 Poznań, Poland.

Waste management is still one of the leading global challenges in the 21st century. From the European Union's point of view, the Waste Framework Directive obliges businesses and households to recycle at least 55% of their municipal waste by 2025 and to reach 65% in 2035. Hence there is a great need to seek new solutions for the reuse of various waste materials. Read More

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Hybrid Multisite Silicon Neural Probe with Integrated Flexible Connector for Interchangeable Packaging.

Sensors (Basel) 2021 Apr 8;21(8). Epub 2021 Apr 8.

Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal.

Multisite neural probes are a fundamental tool to study brain function. Hybrid silicon/polymer neural probes combine rigid silicon and flexible polymer parts into one single device and allow, for example, the precise integration of complex probe geometries, such as multishank designs, with flexible biocompatible cabling. Despite these advantages and benefiting from highly reproducible fabrication methods on both silicon and polymer substrates, they have not been widely available. Read More

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Two-Terminal Perovskite-Based Tandem Solar Cells for Energy Conversion and Storage.

Small 2021 Apr 15:e2006145. Epub 2021 Apr 15.

Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China.

The organic-inorganic hybrid perovskite solar cells present a rapid improvement on power conversion efficiency from 3.8% to 25.5% in the past decades. Read More

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Review on Polymer, Ceramic and Composite Materials for CAD/CAM Indirect Restorations in Dentistry-Application, Mechanical Characteristics and Comparison.

Materials (Basel) 2021 Mar 24;14(7). Epub 2021 Mar 24.

Department of Pediatric Dentistry and Preclinical Dentistry, Wroclaw Medical University, Krakowska 26, 50-425 Wrocław, Poland.

The aim of this review article is to present various material groups, including ceramics, composites and hybrid materials, currently utilized in the field of CAD/CAM. The described technology is amongst the most important in modern prosthetics. Materials that are applicable in this technique are constantly tested, evaluated and improved. Read More

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A Hybrid Fuzzy Decision Model for Evaluating MEMS and IC Integration Technologies.

Micromachines (Basel) 2021 Mar 7;12(3). Epub 2021 Mar 7.

Institute of Management of Technology, National Yang Ming Chiao Tung University, No. 1001, University Rd., Hsinchu City 300, Taiwan.

Integrated devices incorporating MEMS (microelectromechanical systems) with IC (integrated circuit) components have been becoming increasingly important in the era of IoT (Internet of Things). In this study, a hybrid fuzzy MCDM (multi-criteria decision making) model was proposed to effectively evaluate alternative technologies that incorporate MEMS with IC components. This model, composed of the fuzzy AHP (analytic hierarchy process) and fuzzy VIKOR (VIseKriterijumska Optimizacija I Kompromisno Resenje) methods, solves the decision problem of how best to rank MEMS and IC integration technologies in a fuzzy environment. Read More

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In-tube solid phase microextraction and determination of ractopamine in pork muscle samples using amide group modified polysaccharide-silica hybrid monolith as sorbent prior to HPLC analysis.

Food Chem 2021 Sep 22;355:129662. Epub 2021 Mar 22.

School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China.

A facile in-tube solid phase microextraction (in-tube SPME) procedure was developed to enrich ractopamine before HPLC-UV analysis. This was achieved by employing amide groups modified polysaccharide-silica hybrid monolith as an efficient sorbent. The monolith was synthesized by a simple reaction with agarose oxide and tetramethoxylisane, followed by the modification of amide groups via subsequent ring opening, "thiol-ene" click and dehydration reactions. Read More

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September 2021

InP high power monolithically integrated widely tunable laser and SOA array for hybrid integration.

Opt Express 2021 Feb;29(3):3490-3502

We present a monolithic InP-based photonic integrated circuit (PIC) consisting of a widely tunable laser master oscillator feeding an array of integrated semiconductor optical amplifiers that are interferometrically combined on-chip in a single-mode waveguide. We demonstrate a stable and efficient on-chip coherent beam combination and obtain up to 240 mW average power from the monolithic PIC, with 30-50 kHz Schawlow-Townes linewidths and >180 mW average power across the extended C-band. We also explored hybrid integration of the InP-based laser and amplifier array PIC with a high quality factor silicon nitride microring resonator. Read More

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February 2021

Variety of Surgical Guides and Protocols for Bone Reduction Prior to Implant Placement: A Narrative Review.

Int J Environ Res Public Health 2021 02 27;18(5). Epub 2021 Feb 27.

Department of Restorative Dentistry Rutgers, The State University of New Jersey, Newark, NJ 07103, USA.

Edentulism and terminal dentition are still considered significant problems in the dental field, posing a great challenge for surgical and restorative solutions especially with immediate loading protocols. When the implant placement is planned immediately after extraction with irregular bone topography or there is an un-leveled alveolar ridge topography for any other reason, bone reduction may be required to level the alveolar crest in order to create the desired bone architecture allowing for sufficient bone width for implant placement and to insure adequate inter-arch restorative space. Bone reduction protocols exist in analog and digitally planned methodologies, with or without surgical guides to achieve the desired bone level based upon the desired position of the implants with regard to the restorative outcome. Read More

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February 2021

Short communication: In vitro pilot study: Are monolithic 3Y-TZP zirconia crowns too strong for titanium Implants?

Int J Prosthodont 2021 Mar 3. Epub 2021 Mar 3.

Purpose: To report on pilot tests for a planned study on single implant-supported crowns made from different restorative materials using finite element analysis (FEA) and in vitro load-to-failure testing.

Materials And Methods: Within this pilot study, FEA was conducted using Ansys 2019 R2 to simulate stress and deformation for implant-supported crowns made of lithium disilicate ceramic (LiS2) and zirconia (3Y-TZP). Additionally, an in vitro load to failure test was conducted using two specimens per group to evaluate the failure mode and to confirm the findings from the FEA. Read More

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Drug-zein@lipid hybrid nanoparticles: Electrospraying preparation and drug extended release application.

Colloids Surf B Biointerfaces 2021 May 18;201:111629. Epub 2021 Feb 18.

School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China. Electronic address:

The reasonable selection and elaborate conversion of raw materials into desired functional products represent a main topic in modern material engineering. In this study, zein (a plant protein) and lipids (extracted from egg yolk) are converted into a new type of drug-polymer@lipid hybrid nanoparticles (HNPs) via modified coaxial electrospraying. Tamoxifen citrate (TC) is used as a model anticancer drug to prepare TC-zein monolithic nanocomposites (MNCs) via traditional blended electrospraying; these MNCs are then used for comparison. Read More

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Charge Transport, Conductivity and Seebeck Coefficient in Pristine and TCNQ Loaded Preferentially Grown Metal-Organic Framework Films.

J Phys Condens Matter 2021 Feb 17. Epub 2021 Feb 17.

Department of Electrical and Computer Engineering, Old Dominion University, 231 Kaufman Hall, Newport News, Virginia, 23529, UNITED STATES.

This investigation on Metal-Organic Framework (MOF) HUKUST-1 films focuses on comparing the undoped pristine state and with the case of doping by TCNQ infiltration of the MOF pore structure. We have determined the temperature dependent charge transport and p-type conductivity for HKUST-1 films. Furthermore, the electrical conductivity and the current-voltage characteristics have been characterized in detail. Read More

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February 2021

Universal gold nanoparticle modified hybrid monolithic substrate developed for facile in-column post-functionalization.

Talanta 2021 Apr 10;225:121993. Epub 2020 Dec 10.

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, Nanjing, 210023, China. Electronic address:

Organic-inorganic hybrid monolithic columns, due to the comprehensive advantages, have been applied as promising solid-phase separation matrices for pretreatment of complex samples in biomedical and environmental analyses, however, a tremendous time and efforts are cost to optimize the preparation methods of hybrid monolithic columns with different functional groups for various target analytes. Herein, we proposed a strategy to develop basic hybrid monolithic column materials for flexible and facile post-functionalization. Three kinds of single-functionalized (amine, thiol, and carboxyl) and two kinds of bi-functionalized (amine and thiol, and amine and carboxyl) hybrid monolithic columns were immobilized with gold nanoparticles (GNPs) as intermediary bridge to construct the universal substrates. Read More

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Anisotropic confinement of chromophores induces second-order nonlinear optics in a nanoporous photonic metamaterial.

Opt Lett 2021 Feb;46(4):845-848

Second-order nonlinear optics is the base for a large variety of devices aimed at the active manipulation of light. However, physical principles restrict its occurrence to non-centrosymmetric, anisotropic matter. This significantly limits the number of base materials exhibiting nonlinear optics. Read More

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February 2021

Ultralow-Threshold Continuous-Wave Room-Temperature Crystal-Fiber/Nanoperovskite Hybrid Lasers for All-Optical Photonic Integration.

Adv Mater 2021 Mar 11;33(12):e2006819. Epub 2021 Feb 11.

Department of Physics, National Dong Hwa University, Hualien, 974301, Taiwan.

Continuous-wave (CW) room-temperature (RT) laser operation with low energy consumption is an ultimate goal for electrically driven lasers. A monolithically integrated perovskite laser in a chip-level fiber scheme is ideal. However, because of the well-recognized air and thermal instabilities of perovskites, laser action in a perovskite has mostly been limited to either pulsed or cryogenic-temperature operations. Read More

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Novel materials as capillary coatings for in-tube solid-phase microextraction for bioanalysis.

J Sep Sci 2021 Apr 17;44(8):1662-1693. Epub 2021 Feb 17.

Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Departamento de Química, Universidade de São Paulo, São Paulo, Brazil.

In-tube solid-phase microextraction with a capillary column as extraction device can be directly coupled with high-performance liquid chromatography systems (HPLC). The in-tube solid-phase microextraction technique has been continuously developed since it was introduced in 1997. New couplings have also been evaluated on the basis of state-of-the-art HPLC instruments. Read More

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Cellular Response to Sol-Gel Hybrid Materials Releasing Boron and Calcium Ions.

ACS Biomater Sci Eng 2021 02 26;7(2):491-506. Epub 2021 Jan 26.

Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials (CICECO/UA), University of Aveiro, 3810-193 Aveiro, Portugal.

Poly(dimethylsiloxane) (PDMS)-SiO-CaO-based hybrid materials prepared by sol-gel have proved to be very promising materials for tissue engineering applications and drug-delivery systems. These hybrids are biocompatible and present osteogenic and bioactive properties supporting osteoblast attachment and bone growth. The incorporation of therapeutic elements in these materials, such as boron (B) and calcium (Ca), was considered in this study as an approach to develop biomaterials capable of stimulating bone regeneration. Read More

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February 2021

Nitrogen-rich covalent triazine frameworks for high-efficient removal of anion dyes and the synergistic adsorption of cationic dyes.

Chemosphere 2021 Jun 11;272:129622. Epub 2021 Jan 11.

Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China; Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China. Electronic address:

Efficient adsorption of organic dyes from effluent has great importance for ecological and environmental protection. Herein, covalent triazine frameworks (CTFs) were constructed via the polycondensation of melamine and cyanuric chloride directly. Due to the numerous basic nitrogen atoms as high as 58. Read More

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Selective recognition of nucleosides by boronate affinity organic-inorganic hybrid monolithic column.

J Chromatogr B Analyt Technol Biomed Life Sci 2021 Jan 7;1162:122477. Epub 2020 Dec 7.

Department of Chemistry, Hacettepe University, Ankara, Turkey. Electronic address:

Boronic acids are important ligands used to selectively recognize and enrich compounds containing cis-diol groups such as nucleosides. In the present study, organic-inorganic hybrid [POSS-MAH-BPA] monolithic column was prepared for the first time in the literature as a new boronate affinity system for the recognition of nucleosides. The selectivity of the [POSS-MAH-PBA] boronate affinity monolithic column for the recognition of cis-diol containing adenosine nucleoside from its analogue molecule of deoxyadenosine triphosphate, dATP, non-cis-diol containing compound was investigated both by UV and HPLC studies. Read More

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January 2021

Cryogenic C-band wavelength division multiplexing system using an AIM Photonics Foundry process design kit.

Opt Express 2020 Nov;28(24):35651-35662

Cryogenic environments make superconducting computing possible by reducing thermal noise, electrical resistance and heat dissipation. Heat generated by the electronics and thermal conductivity of electrical transmission lines to the outside world constitute two main sources of thermal load in such systems. As a result, higher data rates require additional transmission lines which come at an increasingly higher cooling power cost. Read More

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November 2020

Preparation of monolithic polymer-magnetite nanoparticle composites into poly(ethylene-co-tetrafluoroethylene) tubes for uses in micro-bore HPLC separation and extraction of phosphorylated compounds.

Talanta 2021 Mar 28;224:121806. Epub 2020 Oct 28.

Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100, Burjassot, Valencia, Spain. Electronic address:

This paper describes the fabrication of a novel microbore monolithic column modified with magnetite nanoparticles (MNPs) prepared in a poly(ethylene-co-tetrafluoroethylene) (EFTE) tubing, and its application as stationary phase for the chromatographic separation of phosphorylated compounds. In order to obtain the composite column, a two-step procedure was performed. The formation of a glycidyl methacrylate-based monolith inside the activated ETFE tube was firstly carried out. Read More

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Effect of Thermomechanical Loading on the Cementation Interface of Implant-Supported CAD/CAM Crowns Luted to Titanium Abutments.

Int J Prosthodont 2020 Nov/Dec;33(6):656-662

Purpose: To investigate the effect of aging on the morphology of the interface between monolithic implant crowns and standardized titanium base abutments.

Materials And Methods: Four groups of hybrid abutment crowns differing in restorative material (lithium disilicate [LD] or polymer-infiltrated ceramic network [PICN]) and in fabrication procedure of the interfacial zone for luting to a titanium abutment (milled during CAD/ CAM procedure [M] or prefabricated [P]) were formed: LDS-M, LDS-P, PICN-M, and PICN-P (n = 10 each). The morphology of the crown-abutment interface was examined before and after artificial aging using scanning electron microscopy. Read More

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December 2020

Mechanical Fatigue Analysis of PEEK as Alternative to Zirconia for Definitive Hybrid Abutments Supporting All-Ceramic Crowns.

Int J Oral Maxillofac Implants 2020 Nov/Dec;35(6):1209-1217

Purpose: The aim of this study was to inspect the mechanical fatigue behavior of an implant-supported restorative system using polyether ether ketone (PEEK) and yttria partially stabilized zirconia polycrystals (YZ) as materials for customized definitive implant-supported hybrid abutments, supporting two types of all-ceramic restorations: translucent zirconia (TZ) and lithium disilicate (LD) monolithic crowns.

Materials And Methods: Forty Morse taper implants were included in epoxy resin. Titanium intermediary abutments were placed, and the specimens were randomly allocated into four groups (n = 10) according to the customized hybrid abutment material (PEEK or YZ) and the monolithic crowns (TZ or LD) representing a maxillary central incisor crown. Read More

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December 2020

Mechanical stability and technical outcomes of monolithic CAD/CAM fabricated abutment-crowns supported by titanium bases: An in vitro study.

Clin Oral Implants Res 2021 Feb 17;32(2):222-232. Epub 2020 Dec 17.

Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine, University of Geneva, Geneva, Switzerland.

Objectives: To evaluate mechanical stability (survival and complication rates) and bending moments of different all-ceramic monolithic restorations bonded to titanium bases (hybrid abutment-crowns) or to customized titanium abutments compared to porcelain-fused-to-metal crowns (PFM) after thermo-mechanical aging.

Material And Methods: Sixty conical connection implants (4.3 mm-diameter) were divided in five groups (n = 12): PFM using gold abutment (GAbut-PFM), lithium disilicate crown bonded to customized titanium abutment (TAbut+LDS), lithium disilicate abutment-crown bonded to titanium base (TiBase+LDS), zirconia abutment-crown bonded to titanium base (TiBase+ZR), polymer-infiltrated ceramic-network (PICN) abutment-crown bonded to titanium base (TiBase+PICN). Read More

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February 2021

Orderly MOF-Assembled Hybrid Monolithic Stationary Phases for Nano-Flow HPLC.

Anal Chem 2020 12 30;92(24):15757-15765. Epub 2020 Nov 30.

Department of Chemistry & the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.

We report an approach that polymerizable handle-modified nanosized metal organic frameworks (MOFs) are used as independent monomers to be covalently organized by crosslinking molecules (CLMs) into an orderly MOF-assembled hybrid monolithic stationary phase, overcoming the respective problems of previously reported MOF-mixed or embedded stationary phases so far. It has a hierarchical micro-, meso-, and macropore structure throughout the monolithic matrix that is donated from MOF themselves, formed via CLM crosslinking in-between MOFs and expended by porogenic solvents, and a tunable surface chemistry derived inherently from MOFs, regulated by CLMs and initiated by the mobile phases as well. Such a pore structure and surface chemistry display multiplex interactions of sieving and electrostatic repulsion in addition to the polarity-based interactions that synergistically govern the partitioning way and degree of target molecules between the stationary and mobile phases, thus offering the ability to simultaneously separate small and large molecules during one chromatographic run on a nano-flow capillary high-performance liquid chromatography platform. Read More

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December 2020

Minimal tooth preparation for posterior monolithic ceramic crowns: Effect on the mechanical behavior, reliability and translucency.

Dent Mater 2021 03 25;37(3):e140-e150. Epub 2020 Nov 25.

PhD Graduate Program in Restorative Dentistry, São Paulo State University (Unesp), Institute of Science and Technology, Av. Eng. Francisco José Longo, nº 777, Jardim São Dimas, 12245-000 São José dos Campos, SP, Brazil. Electronic address:

Objective: Despite the increased use of monolithic crowns, their performance has yet to be determined when the minimal tooth preparation (MTP) principle is considered. The goal of this study was to evaluate the effect of MTP on the mechanical behavior, reliability and translucency of posterior monolithic ceramic crowns.

Methods: Dentin analogues were machined using two preparation designs (0. Read More

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