Synergistic Effect of Multifunctional Layered Double Hydroxide-Based Hybrids and Modified Phosphagen with an Active Amino Group for Enhancing the Smoke Suppression and Flame Retardancy of Epoxy.

To improve the fire hazard of epoxy resin (EP), phosphomolybdate (PMoA), as a classical Keggin cluster, was successfully intercalated into Mg, Al, and Zn layered double hydrotalcite (LDH) by the reconstruction method, and it was denoted as MgAlZn-LDH-PMoA. The structure and morphology of MgAlZn-LDH-PMoA were characterized by X-ray diffraction and Fourier transform infrared spectroscopy. Subsequently, hexa(4-aminophenoxy)cyclotriphosphazene (HACP) was prepared and characterized as a high-performance organic flame retardant, which is rich in flame elements phosphorus and nitrogen.

Electroless deposition of Ni-P/Au coating on Cu substrate with improved corrosion resistance from Au(iii)-DMH based cyanide-free plating bath using hypophosphite as a reducing agent.

The green cyanide-free gold deposition is an important development direction in electroless gold plating. However, the commonly Au(i) based cyanide-free gold plating bath always suffers from severe corrosion to the Ni-P layer and unsatisfactory service life of the bath. In this work, a green and environmentally friendly cyanide-free gold plating bath was developed with hypophosphite added as a reducing agent into the Au(iii)-DMH (5,5-dimethylhydantoin) based plating bath to retard the corrosion of the Ni-P layer.

PAA Modified Upconversion Nanoparticles for Highly Selective and Sensitive Detection of Cu Ions.

Detection of the Cu ions is crucial because of its environmental and biological implications. The fluorescent-based organic sensors are not suitable for Cu detection due to their short penetration depth caused by the UV/visible excitation source. Therefore, we have demonstrated a highly sensitive and selective near-infrared (NIR) excitable poly(acrylic acid) (PAA) coated upconversion nanoparticles (UCNPs) based sensor for Cu detection.

Modified EDTA selectively recognized Cu and its application in the disaggregation of β-amyloid-Cu (II)/Zn (II) aggregates.

The accumulation of the β-amyloid (Aβ) aggregates induced by Cu/Zn in conjunction with toxicity is closely related to Alzheimer's disease (AD). Herein, we intended to improve the efficiency and selectivity of traditional chelator ethylenediaminetetraacetic acid (EDTA) combined with a fluorescent group 4-aminosalicylic acid (4-ASA)to acquire a novel potential chelator 4,4'-((2,2'-(ethane-1,2-diylbis((carboxymethyl)azanediyl))bis(acetyl))bis(azanediyl))bis(2-hydroxybenzoic acid) (EDTA-ASA) capable of disaggregating Aβ-Cu(II)/ Zn(II) aggregates. EDTA-ASA combines 4-ASA as fluorophore and multidentate amino nitrogen, hydroxyl and carboxyl groups to chelate Cu from Aβ-Cu (II) aggregates.