期刊
NEW JOURNAL OF CHEMISTRY
卷 40, 期 1, 页码 330-339出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nj02579f
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资金
- DST, New Delhi, India [SR/S1/IC-20/2012]
- CSIR, New Delhi, India [01(2490)/11/EMR-II]
- UGC (UGC-NET)
Organic molecules with the possibility of logic operations are highly useful building blocks for the development of molecule-based intelligent'' devices for information processing applications. We have designed herein a very simple bio-friendly chemosensor (L-C) equipped with a rhodamine fluorophore moiety. This probe showed a chromo-fluorescence response profile for Al3+ but a colorimetric response for Cu2+ metal. The absorption responses of L-C caused by these metal ions along with the OFF-ONOFF'' fluorescence behavior of an L-C-Al3+ complex towards EDTA were employed for the development of a three-input and one output combinatorial molecular system. Interactions of the mentioned metal ions with L-C in controlled sequential experiments gave fluorescence responses, enabling us to fabricate a 'key-pad-logic' function. So, a single molecular system performing such multiple 'Boolean' operations not only simplifies the complexity of a chemical driven 'Intelligence' device but also enriches the security of such a device against information invasion due to the sequence controlled sensor-analyte interactions and may find potential applications in biocompatible molecular logic platforms.
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