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Qi X.,Soochow University of China | Qi X.,Changzhou Institute of Engineering Technology | Li N.,Soochow University of China | Li N.,State Key Laboratory Of Treatments And Recycling For Organ Effluents | And 7 more authors.
RSC Advances | Year: 2014

Functional amphiphilic oligomers were synthesized and could be easily used to coat monodispersed hydrophobic magnetite Fe3O4 superparamagnetic nanoparticles (MSPNPs) with 13 nm diameter. The resulting hydrophilic modified MSPNPs (M-MSPNPs) with abundant groups on the surface, which could bond with Hg2+, exhibit excellent ability in the fast, efficient and selective removal of Hg2+ from water samples by low-field magnetic separation. This journal is © the Partner Organisations 2014.

Zhuang H.,Soochow University of China | Zhou Q.,Soochow University of China | Li Y.,Soochow University of China | Zhang Q.,Soochow University of China | And 10 more authors.
ACS Applied Materials and Interfaces | Year: 2014

In this study, two D-A molecules NACANA and CANACA, based on carbazole (CA) donor and naphthalimide (NA) acceptor, with different D-A arrangement (A-D-A and D-A-D) were synthesized. The photophysical and electrochemical properties, microstructure and memory behaviors of both A-D-A and D-A-D molecules were systematically investigated. The fabricated devices ITO/NACANA or CANACA layer/Al with a simple sandwich configuration both exhibited volatile nature after shutting off the external electric field. Interestingly, NACANA showed ON-state retention time of ca. 12 min, longer than that of CANACA (ca. 6 min). The difference in retention ability of the programmed states could be assigned to the difference of the D-A arrangement. This type of retention ability adjustment by varying the arrangement of donor and acceptor segments may provide a guide of structure design for future organic-based specific memory devices with tunable volatile property. © 2013 American Chemical Society.

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