Results 71 to 80 of about 640,776 (285)

Gene expression, immunohistochemical and microarchitectural evaluation of bone formation around two implant surfaces placed in bone defects filled or not with bone substitute material

International Journal of Implant Dentistry, 2020
Objective The aim of this study is to evaluate through gene expression, immunohistochemical and microtomographic (micro-CT) analysis the response of peri-implant bone tissue around titanium implants with different surface treatments, placed in bone ...
Guilherme dos Santos Trento, Jaqueline Suemi Hassumi, Paula Buzo Frigério, Ana Paula Farnezi Bassi, Roberta Okamoto, Marisa Aparecida Cabrini Gabrielli, Valfrido Antonio Pereira-Filho   +6 more
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Análise comparativa da topografia e presença de impurezas de implantes dentais com superfície texturizada por meio de microscopia eletrônica de varredura (MEV) [PDF]

, 2004
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Odontologia.O objetivo desta análise comparativa foi observar qualitativamente, por meio de Microscopia Eletrônica de Varredura ...
Castro, Kavio Narciso de Oliveira
core  

Corrosion performance of laser post-treated cold sprayed titanium coatings [PDF]

, 2011
The recent development of cold spray technology has made possible the deposition of highly reactive,oxygen sensitive materials, such as titanium, without significant chemical reaction of the powder, modificationof particle microstructure and with minimal
Marrocco, T., D. G. McCartney, Shipway, P. H., McCartney, D. G., Hussain, Tanvir, P. H. Shipway, T. Marrocco, T. Hussain   +7 more
core   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Magnet Cove Titanium and Columbium Corporation collection

, 1938
This small collection contains minutes, correspondence, and geological survey materials from the Magnet Cove Titanium and Columbium Corporation, which operated an open-pit ...
Magnet Cove Titanium and Columbium Corporation. (Magnet Cove, Ark.)
core   +1 more source

Porous materials from sponge titanium powders with increased strength

Литьë и металлургия
The possibility of increasing the mechanical strength of porous materials from sponge titanium powders by two methods has been investigated. In the first case, sintering activation was carried out using alloying additives based on Al, ZnO and TiH2.
V. V. Savich, M. V. Tumilovich, L. P. Pilinevich, A. M. Taraykovich   +3 more
doaj   +1 more source

Gold‐Stabilized Copper Enables Anodic Hydrogen Evolution for Ultralow‐Voltage CO‐to‐Ethylene Electrolysis

Advanced Materials, EarlyView.
Gold‐stabilized copper suppresses hydroxide‐driven deactivation during anodic hydrogen evolution from furfural. Pairing this low‐potential anode with CO‐to‐ethylene electroreduction enables sub‐1 V operation at 400 mA cm−2, high single‐pass CO conversion, and co‐production of ethylene, furoic acid, and a separate hydrogen stream.
Sungjin Park, Hengzhou Liu, Heejong Shin, Hafiz Ghulam Abbas, Loann Bonnenfant, Ke Xie, Hyeon Seok Lee, Fatemeh Arabyarmohammadi, Jianan Erick Huang, Panos Papangelakis, Peiying Wang, Ali Shayesteh Zeraati, Jiheon Kim, Roham Dorakhan, David Sinton, Xiaopeng Liu, Wenzhen Li, Byoung‐hoon Lee, Edward H. Sargent   +18 more
wiley   +1 more source

Surface Modification of Titanium by Hydroxyapatite/CaSiO3/Chitosan Porous Bioceramic Coating

International Journal of Electrochemical Science, 2020
In this study, hydroxyapatite(HA)-CaSiO3-chitosan(CS) composite bioceramic coating was applied to the surfaces of pure titanium by using the electrophoretic deposition (EPD) method. The mechanism of EPD of HA/CaSiO3/CS composites is discussed.
Lan Zhang
doaj   +1 more source

Confinement‐Induced Donnan Potential Enables Sealed Hydrovoltaic Power From Microliter Water

Advanced Materials, EarlyView.
An ultrathin MXene/cellulose nanofiber (CNF) nanochannel‐based hydrovoltaic generator produces sustained direct current (DC) from a single microliter droplet under sealed operation. Asymmetric nanochannel confinement establishes a persistent ion gradient and a confinement‐induced Donnan potential, harvesting the interfacial free energy released upon ...
Sangyun Na, Geonyoung Jung, Yoojin Chang, Yun Goo Ro, Cheolhong Park, Jeonghee Yeom, Jinyoung Kim, Jeeyoon Kim, Hyejin Lee, Hyeji Oh, Hyunhyub Ko   +10 more
wiley   +1 more source