A highly selective and ultrafast near-infrared fluorescent turn-on and colorimetric probe for hypochlorite in living cells.

Hypochlorous acid (HOCl)/hypochlorite (OCl), important reactive oxygen species, play essential roles in many physiological and pathological progresses. Accordingly, we developed a novel dicyanomethylene-4H-pyran (DCM)-based probe DCM-OCl for colorimetric and near-infrared fluorescent turn-on detection of OCl. The probe exhibited excellent selectivity and sensitivity for OCl over other bio-related analytes with a detection limit of 80 nM.

Highly enantioselective zinc/amino alcohol-catalyzed alkynylation of aldehydes.

Meeting the challenge: The zinc/amino alcohol catalyzed enantioselective addition of terminal alkynes to aldehydes is effective with both phenylacetylene and methyl propiolate, leading to chiral secondary propargyl alcohols with very high enantioselectivity (see scheme).

[Study on determination of acetamiprid and interaction between acetamiprid and deoxyribonucleic acid by resonance light scattering].

The interaction between acetamiprid and deoxyribonucleic acid (DNA) was used to determine acetamiprid by resonance light scattering (RLS). The RLS signals of DNA were greatly enhanced by acetamiprid in the spectrum region of 300-600 nm. The spectrum peak is around 316.

[Preparation of cellulose-based chiral stationary phase and enantioseparation of ethoxyfen-ethyl by high performance liquid chromatography].

Cellulose-tris (3,5-dimethylphenylcarbamate) was prepared after a reported method, and was confirmed by infrared spectroscopy and elemental analysis. Then it was coated onto an amino-propylated mesopore spherical silica gel. The final product was used as the chiral stationary phase of high performance liquid chromatography for the enantioseparation of a novel herbicide ethoxyfen-ethyl.