Thermodriven, Acidity-Driven, and Photodriven Spin-State Switching in Pyridylacylhydrazoneiron(II) Complexes at or above Room Temperature.

The magnetic bistability of spin-crossover (SCO) materials is highly appealing for applications as molecular switches and information storage. However, switching of the spin state around room temperature remains challenging. In this work, we reported the successful manipulation of the spin states of two iron(II) complexes ( and ) based on pyridylacylhydrazone ligands in manifold ways.

[Expression of actA gene of Listeria monocytogenes in Escherichia coli and preparation of ActA monoclonal antibodies].

The actA gene was amplified from Lm-4 strain of Listeria monocytogenes serotype 1/2a by PCR and inserted into T vector. Sequencing showed actA gene was 1833bp long and nucleotide homology was 100% compared with actA gene of Listeria monocytogenes EGD strain in GenBank. The cloned actA gene was then inserted into prokaryotic expression vector pGEX-6P-1 and pET respectively.