نتایج جستجو برای: halloysite nanotubes

تعداد نتایج: 29457  

2016
Tayser Sumer Gaaz Abu Bakar Sulong Abdul Amir H. Kadhum Mohamed H. Nassir Ahmed A. Al-Amiery

Halloysite (HNT) is treated with sulfuric acid and the physico-chemical properties of its morphology, surface activity, physical and chemical properties have been investigated when HNT is exposed to sulfuric acid with treatment periods of 1 h (H1), 3 h (H3), 8 h (H8), and 21 h (H21). The significance of this and similar work lies in the importance of using HNT as a functional material in nanoco...

2017
Giuseppe Cavallaro Anna A. Danilushkina Vladimir G. Evtugyn Giuseppe Lazzara Stefana Milioto Filippo Parisi Elvira V. Rozhina Rawil F. Fakhrullin

Hollow halloysite nanotubes have been used as nanocontainers for loading and for the triggered release of calcium hydroxide for paper preservation. A strategy for placing end-stoppers into the tubular nanocontainer is proposed and the sustained release from the cavity is reported. The incorporation of Ca(OH)₂ into the nanotube lumen, as demonstrated using transmission electron microscopy (TEM) ...

2017
Vera Khodzhaeva Anna Makeeva Vera Ulyanova Pavel Zelenikhin Vladimir Evtugyn Martin Hardt Elvira Rozhina Yuri Lvov Rawil Fakhrullin Olga Ilinskaya

Many ribonucleases (RNases) are considered as promising tools for antitumor therapy because of their selective cytotoxicity toward cancer cells. Binase, the RNase from Bacillus pumilus, triggers apoptotic response in cancer cells expressing RAS oncogene which is mutated in a large percentage of prevalent and deadly malignancies including colorectal cancer. The specific antitumor effect of binas...

Journal: :Global challenges 2023

Lithium–sulfur batteries with high energy density still confront many challenges, such as polysulfide dissolution, the large volume change of sulfur, and fast capacity fading in long-term cycling. Herein, a naturally abundant clay material, halloysite, is introduced sulfur host material cathode Li–S batteries. Nickel oxide nanoparticles are embedded into halloysite nanotubes ([email protected]s...

Journal: :Journal of Coatings Technology and Research 2021

Abstract The treatment of stone surfaces for their protection from ageing caused by natural and anthropogenic effects is an open issue in materials development Cultural Heritage. We thought interesting to verify the suitability a modified cellulose biofilm filled with halloysite nanotubes as wax compatibilizers design protecting layer. A hydraulic mortar was selected prototype. To improve physi...

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