Results 71 to 80 of about 72,062 (285)

Nano-basic silica as an efficient catalyst for the multi-component preparation of pyrano[2,3-d]pyrimidine derivatives

open access: yesMain Group Metal Chemistry, 2017
A high-yield protocol is explored for the synthesis of pyrano[2,3-d]pyrimidines through the multi-component reaction of aromatic aldehydes, 1,3-Dimethylbarbituric acid, and malononitrile using nano-basic silica as an efficient catalyst.
Sheikhan-Shamsabadi Nafisehsadat   +1 more
doaj   +1 more source

The Dielectric Properties of Epoxy Insulating Impregnating Varnish Modified by Nano-Silica

open access: yesJournal of Harbin University of Science and Technology, 2018
The epoxy insulating impregnating varnish modified by nano-Silica was prepared with different doping amount and transformed to epoxy resin composite by heating. Transmission electron microscope were used to investigate the dispersion.
HUA Cong-cong   +4 more
doaj   +1 more source

Durability and microstructural behavior of Nano silica-marble dust concrete

open access: yesCleaner Materials, 2023
Present study assesses the durability performance of concrete mix with the addition of marble dust and Nano silica as partial replacement of cement.
Vikram Singh Kashyap   +2 more
doaj   +1 more source

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

open access: yesAdvanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig   +11 more
wiley   +1 more source

Estimation of mass thickness response of embedded aggregated silica nanospheres from high angle annular dark-field scanning transmission electron micrographs

open access: yes, 2013
In this study we investigate the functional behavior of the intensity in high-angle annular dark field (HAADF) scanning transmission electron micrograph (STEM) images. The model material is a silica particle (20 nm) gel at 5 wt%.
Abrahamsson, Christoffer   +7 more
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Effect of modified nano-silica on mechanical properties of natural rubber: Experiment and molecular simulation

open access: yesHecheng xiangjiao gongye
"Nano-silica was a non-toxic and biocompatible inorganic filler, which could endow rubber with excellent tensile strength, thermal stability, and abrasion resistance[1].
YANG Zi-fan1, WANG Jing1,2, CHEN Meng-han1, XU Ying-shu1, JIA Hong-bing1*
doaj   +1 more source

Light‐Responsive Enzyme‐Loaded Nanoparticles for Tunable Adhesion and Mechanical Wound Contraction

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a photoactivatable enzyme‐loaded mesoporous nanoparticle system (MPDA_PaTy) that enables light‐triggered tunable tissue adhesion and facilitates mechanical wound contraction. Controlled enzymatic crosslinking at tissue or hydrogel interfaces allows on‐demand adhesion.
Junghyeon Ko   +10 more
wiley   +1 more source

Nanobiosensor designing with molecular framework polymer method compared with agent-linked nanosilica biosensor for Staphylococcus aureus exotoxin detection [PDF]

open access: yes, 2014
Considering the ever increasing population and industrialization leading to developmental trend of humankind's life, we are hardly able to detect the toxins produced in food products using traditional techniques.
Ahari, H.   +3 more
core  

Feasibility Study on Production of Fiber Cement Board Using Waste Kraft Pulp in Corporation with Polypropylene and Acrylic Fibers [PDF]

open access: yes, 2016
This research attempts to find the cheap and accessible fibers as an asbestos replacement in the production of fiber cement board. In this research, waste Kraft pulp which gained from waste cardboard in corporation with two polymeric fibers; acrylic and ...
Khorami, Khorami, Mohr, Savastano
core   +1 more source

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