BACKGROUND Discharge of heavy metals such as hexavalent chromium (Cr (VI)) and nickel (Ni (II)) into aquatic ecosystems is a matter of concern in wastewater treatment due to their harmful effects on humans. In this paper, removal of Cr (VI) and Ni (II) ions from aqueous solution was investigated using an amino-functionalized magnetic Nano-adsorbent (Fe3O4-NH2). METHODS An amino-functionalized...

A facile strategy to prepare snap-top magnetic nanocarriers has been developed where ultrasmall superparamagnetic Fe3O4 nanoparticles were used as the core with mesoporous silica as the shell followed by the covalent installation of a layer of β-cyclodextrins on the outer surfaces. The smart hybrid nanomaterials showed remarkable pH- and sugar-responsive cargo release property and low cytotoxic...

The Fe3O4@mSiO2 nanocarrier that consisted of a magnetic Fe3O4 nanoparticle core and a mesoporous silica (mSiO2) shell was synthesized. It shows a uniform sphere morphology about 65 nm in diameter. Considering the magnetic hyperthermia of Fe3O4 under an alternating magnetic field (AMF), a thermo-sensitive polymer, poly[(ethylene glycol)-co-(L-lactide)] (P(EO-co-LLA)), was used as "gatekeeper" c...

Molecular imaging has become an indispensable technology in cancer research and clinical use. Among various molecular imaging modalities, magnetic resonance imaging (MRI) provides high spatial resolution and soft-tissue contrast in global view and optical microscopy supplies excellent time and spatial resolution in local view [1-3]. In the previous study, nano-sized Fe3O4 particles showed signi...

A novel, simple, sensitive and effective method has been developed for preconcentration of Hg(II) on nano-Fe3O4-DOP-ED solid-phase extraction adsorbent. In this paper, Dioctyl phthalate (DOP) was used to encapsulate nano-Fe3O4 and produce a nano-Fe3O4-DOP sorbent based new sorbent was prepared. This was treated with ethylenediamine (ED) in another solvent-free procedure for the formation of a n...

The application of Butane tetra carboxylic acid/nano titanium dioxide [(BTCA)/Nano TiO2 (NTO)] on cotton fabric has been used to cross-linked cellulose, and yield higher NTO absorption and enhanced selfcleaning properties. In this research, the synergistic effect of BTCA and NTO on antibacterial properties of the cotton fabric was investigated. The NTO particles were stabilized on the cotton su...

A novel, simple, sensitive and effective method has been developed for preconcentration of Hg(II) on nano-Fe3O4-DOP-ED solid-phase extraction adsorbent. In this paper, Dioctyl phthalate (DOP) was used to encapsulate nano-Fe3O4 and produce a nano-Fe3O4-DOP sorbent based new sorbent was prepared. This was treated with ethylenediamine (ED) in another solvent-free procedure for the formation of a n...

AIM To compare the precision of the Topcon SP-3000P noncontact specular microscope (NCSM) and the DGH 500 ultrasound pachymeter (USP). METHODS Triplicate measurements of central corneal thickness (CCT) for 100 eyes were taken with an NCSM and a USP in 2 visits separated by 1 week. Repeatability was assessed by computing the differences between all 3 readings from each subject. Coefficients of...

1. Introduction Mesoporous UL-ZSM-5 materials have zeolitic structure in the form of nano-particles inter-grown in the walls of the amorphous wormhole-like aluminosilicate mesoporous precursor, and were shown to exhibit an intermediate acidity between the parent mesoporous precursor and ZSM-5 zeolite [1,2]. These materials combine the advantages of both, i.e., microporous crystalline zeolites (...