A new method, named "re-growth etching", which introduces a unique etchant "Au(I)", has been developed to fabricate large-sized porous gold nanostructures. The size of nanostructures and the number of pores can be regulated by the molar ratio of Ag and Au in the precursor. We have evaluated their performance by a model reaction of the reduction of 4-nitrophenol. The catalytic property of porous...

Inorganic polyphosphates, linear polymers of orthophosphate, occur naturally throughout biology and have many industrial applications. Their biodegradable nature makes them attractive for a multitude of uses, and it would be important to understand how polyphosphates are turned over enzymatically. Studies of inorganic polyphosphatases are, however, hampered by the lack of high-throughput method...

It has been known for years that the phenolic compounds are able to exert harmful effects toward living organisms including humans due their high toxicity. Living were exposed these as they released into environment waste products from several fast-growing industries. In this regard, tremendous efforts have made by researchers develop sensing methods detection of compounds. Graphene and conduct...

CO(2)-switchable gold nanoparticles (AuNPs) were prepared by functionalizing AuNPs with CO(2)-switchable polymers. Their dispersion-re-dispersion in and separation from aqueous solution can be easily and reproducibly adjusted by CO(2) bubbling through and removal from the solution, enabling unique CO(2) controllable, efficient in situ recycling of NPs. As compared to non-functionalized AuNPs, t...

We report the 8.231-Mb genome sequence of Rhodococcus imtechensis RKJ300, isolated from pesticide-contaminated soil in Punjab, India. The genome sequence of the strain RKJ300 will be helpful in exploring the molecular pathways involved in the degradation of nitrophenols.

Highly ordered noncrystalline boron-doped nickel nanotube arrays are rapidly synthesized within 150 s by template-based electroless deposition. The as-prepared nanotubes have tunable magnetic properties and exhibit super efficient catalytic activity (∼70 s) for the reduction of 4-nitrophenol.

A new nanocluster of atomic precision, Au44(SC2H4Ph)32, is obtained by an oxidation-decomposition-recombination (ODR) process from Au25(SC2H4Ph)18 under mild conditions with high yield (75%). Among the investigated gold nanoclusters, Au44(SC2H4Ph)32 exhibits the highest catalytic activity for the reduction of 4-nitrophenol, especially at low temperature, indicating that the catalytic properties...

In this study, the crystalline metal-organic framework (MOF) ZIF-67 was obtained using solvent-free ball milling method, which is a fast, simple, and economical green method without need to use solvents. Using impregnation platinum metal ions were loaded in MOF cavities. Various descriptive methods have been used explain prepared Pt@ZIF-67 compound, such as FTIR, BET, TEM, SEM, EDS, XRD, TGA, I...

Abstract p -Nitrophenol (PNP) is an important environmental pollutant and can causes significant health risks. Compared with the traditional methods, biodegradation a useful one to completely remove harmful pollutants from environment. Here, engineered strain was first constructed by introducing PNP pathway via hydroquinone (HQ) into Escherichia coli . In BL-PNP, degraded β-ketoadipate subseque...