Results 51 to 60 of about 582,474 (302)

Hydrophobic adsorption and covalent immobilization of Candida antarctica lipase B on mixed-function-grafted silica gel supports for continuous-flow biotransformations [PDF]

, 2013
Adsorption onto solid supports has proven to be an easy and effective way to improve the mechanical and catalytic properties of lipases. Covalent binding of lipases onto the support surface enhances the active lifetime of the immobilized biocatalysts ...
Poppe, László, Márkus, Mária, Abaháziová, Emese, Weiser, Diána, Kovács, Péter, Koczkac, Béla, Boros, Zoltán, Tomin, Anna, Magyar, Ágnes   +8 more
core   +1 more source

pH Coupled Co-Precipitation of Alkaline-Earth Carbonates and Silica - Complex Materials from Simple Chemistry

, 2017
The present work deals with the mineralization of alkaline-earth carbonates (mainly barium carbonate) from dilute silica solutions at high pH. It has for long been known that the concerted interaction between these purely inorganic components leads to ...
Eiblmeier, Josef
core   +1 more source

Experimental Study on Nano Silica Concrete

International Journal for Research in Applied Science and Engineering Technology, 2023
Abstract: Concrete is the most common material for construction. The total production depends upon the cement content only. Due to the usage, large amount of cement produces increasing the CO2emissions, to reduce the cement percentage in concrete mixes the nanosilica (nSiO2) is used as the replacement of the cement. The application of nanotechnology to
openaire   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Preparation Of Nanoparticle Silica From Silica Sand and Quartzite By Ultrafine Grinding [PDF]

, 2012
In this work nanoparticle silica was synthesized using silica sand and quartzite by top down approach using ultrafine grinding. Silica sand was obtained from Bangka island while quartzite rocks from Rokan Hulu, Riau.
Siti , Rochani, Teguh , Nurasid, Agus , Wahyudi   +2 more
core  

Effects of the Presence or Absence of a Protein Corona on Silica Nanoparticle Uptake and Impact on Cells

, 2012
Nanoparticles enter cells through active processes, thanks to their capability of interacting with the cellular machinery. The protein layer (corona) that forms on their surface once nanoparticles are in contact with biological fluids, such as the cell ...
Monopoli, Marco P., Dawson, Kenneth A, Monopoli, Marco P, Åberg, Christoffer; id_orcid, Fenaroli, Federico, Dawson, Kenneth A., Åberg, Christoffer, Salvati, Anna, Lesniak, Anna   +8 more
core   +1 more source

Investigating the Performance Characteristics of Asphaltic Concrete Containing Nano-Silica [PDF]

Civil Engineering Infrastructures Journal, 2017
Using nano-technology materials in the asphalt pavement industry is new compared with Portland cement concrete. The main objective of this study is to investigate the effects of nano-silica modification on some properties of a penetration grade asphalt ...
Hasan Taherkhani, Siamak Afroozi
doaj   +1 more source

Development and Evaluation of Nano-Silica Sustainable Concrete

Applied Sciences, 2021
In the last decade, nanomaterials made a major breakthrough in the concrete industry by providing the concrete with unique properties. Earlier studies have shown improvement in the early strength of concrete that can accelerate the construction process ...
Habib H. Alqamish, Adil K. Al-Tamimi
doaj   +1 more source

Characterization of Polypropylene Modified by Blending Elastomer and Nano-Silica [PDF]

Materials, 2018
Polypropylene (PP) contains promising application prospects in thermoplastic cables for high voltage direct current (HVDC) power transmission because of its outstanding thermal and dielectric properties. However, the problem of poor toughness and space charge has restricted the application of pure PP in HVDC cables. In this paper, polyolefin elastomer (
Xiaohong Chi, Lu Cheng, Wenfeng Liu, Xiaohong Zhang, Shengtao Li   +4 more
openaire   +2 more sources

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source