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Now showing items 31-40 of 221
Acylphloroglucinol derivatives from the South African helichrysum niveum and their biological activities
(MDPI, 2015)
Abstract: Phytochemical investigation of aerial parts of Helichrysum niveum (H. niveum)
using different chromatographic methods including semi-preparative HPLC afforded three
new (1–3) and six known (4–10) acylphloroglucinols ...
Inhibition of oxidative stress and skin aging-related enzymes by prenylated chalcones and other flavonoids from helichrysum teretifolium
(MDPI, 2015)
Ten flavonoid-related structures viz. heliteretifolin (1), isoxanthohumol (2),
2',4',6'-trihydroxy-3'-prenylchalcone (3), isoglabranin (4), glabranin (5), 7-methoxyisoglabranin
(6), quercetin (7), 4'-methoxyquercetin ...
Aptameric recognition-modulated electroactivity of poly(4-styrenesolfonic acid)-doped polyaniline films for single-shot detection of tetrodotoxin
(MDPI, 2015)
The work being reported is the first electrochemical sensor for tetrodotoxin
(TTX). It was developed on a glassy carbon electrodes (C) that was modified with
poly(4-styrenesolfonic acid)-doped polyaniline film (PANI/PSSA). ...
Effect of nanoparticle (Pd, Pd/Pt, Ni) deposition on high temperature hydrogenation of Ti-V alloys in gaseous flow containing CO
(Elsevier B.V., 2017)
The hydrogenation properties of Ti-V hydrides coated with nanoparticles have been studied in gaseous mixtures of argon and hydrogen with and without additions of 1% CO. Nanoparticles of Pd, Ni, and co-deposited Pd/Pt with ...
Potential broad spectrum inhibitors of the coronavirus 3CLpro: a virtual screening and structure-based drug design study
(MDPI, 2015)
Human coronaviruses represent a significant disease burden; however, there is currently no antiviral strategy to combat infection. The outbreak of severe acute respiratory syndrome (SARS) in 2003 and Middle East respiratory ...
On the design of smart parking networks in the smart cities: an optimal sensor placement model
(MDPI, 2015)
Smart parking is a typical IoT application that can benefit from advances in
sensor, actuator and RFID technologies to provide many services to its users and parking
owners of a smart city. This paper considers a smart ...
An electrochemical DNA biosensor developed on a nanocomposite platform of gold and poly(propyleneimine) dendrimer
(MDPI, 2008)
An electrochemical DNA nanobiosensor was prepared by immobilization of a
20mer thiolated probe DNA on electro-deposited generation 4 (G4) poly(propyleneimine)
dendrimer (PPI) doped with gold nanoparticles (AuNP) as ...
Bioaccumulation of total mercury in the earthworm Eisenia andrei
(SpringerOpen, 2016)
Earthworms are a major part of the total biomass of soil fauna and play a vital role
in soil maintenance. They process large amounts of plant and soil material and can
accumulate many pollutants that may be present in ...
Cytotoxic, cytostatic and HIV-1 PR inhibitory activities of the soft coral litophyton arboreum
(MDPI, 2013)
Bioassay-guided fractionation using different chromatographic and spectroscopic techniques in the analysis of the Red Sea soft coral Litophyton arboreum led to the isolation of nine compounds; sarcophytol M (1), alismol ...
Testing of eight medicinal plant extracts in combination with kresoxim-methyl for integrated control of botrytis cinerea in apples
(MDPI, 2015)
Botrytis cinerea is a fungus that causes gray mold on many fruit crops. Despite
the availability of a large number of botryticides, the chemical control of gray mold has
been hindered by the emergence of resistant strains. ...