Selective adsorption of sulphur dioxide and hydrogen sulphide by metal-organic frameworks.

The removal of highly toxic gasses such as SO and HS is important in various industrial and environmental applications. Metal organic frameworks (MOFs) are promising candidates for the capture of toxic gases owing to their favorable properties such as high selectivity, moisture stability, thermostability, acid gas resistance, high sorption capacity, and low-cost regenerability. In this study, we perform first principles density functional theory (DFT) and grand-canonical Monte Carlo (GCMC) simulations to investigate the capture of highly toxic gases, SO and HS, by the recently designed ZTF and MAF-66 MOFs.

Single Cell Electrochemiluminescence Imaging: From the Proof-of-Concept to Disposable Device-Based Analysis.

We report here the development of coreactant-based electrogenerated chemiluminescence (ECL) as a surface-confined microscopy to image single cells and their membrane proteins. Labeling the entire cell membrane allows one to demonstrate that, by contrast with fluorescence, ECL emission is only detected from fluorophores located in the immediate vicinity of the electrode surface (i.e.

Wireless Synthesis and Activation of Electrochemiluminescent Thermoresponsive Janus Objects Using Bipolar Electrochemistry.

In this work, bipolar electrochemistry (BPE) is used as a dual wireless tool to generate and to activate a thermoresponsive electrochemiluminescent (ECL) Janus object. For the first time, BPE allows regioselective growth of a poly(N-isopropylacrylamide) (pNIPAM) hydrogel film on one side of a carbon fiber. It is achieved thanks to the local reduction of persulfate ions, which initiate radical polymerization of NIPAM.

Antagonistic effects leading to turn-on electrochemiluminescence in thermoresponsive hydrogel films.

We report the effects of the swell-to-collapse transition on the electrochemical and electrochemiluminescence (ECL) properties of thermoresponsive pNIPAM films incorporating covalently-attached Ru(bpy) luminophores. Upon the collapse of the film, the number of electrochemically-active Ru(bpy) centers increases, due to the reduced distance between adjacent redox centers. To generate ECL, cationic and anionic coreactants are employed, which are free to diffuse in the medium.