Design and development of luminescent organic and metal organic probes for sensing applications

Abstract

Over the past few decades an interdisciplinary approach towards the development and newlineapplications of luminescent materials has greatly enriched our knowledge owing to their newlinediverse roles as chemo- and biosensors. This field has received renewed interests for major newlineconcerns in health hazards, national/international security issues and environmental pollution newlinedue to the advancement in globalisation and industrialisation as well as an increase rate of newlineterrorist attacks. These concerns primarily deal with discharge of numerous toxic and harmful newlinesubstances such as organic effluents (amines and ketones), nitro-explosives, toxic metal ions, newlinevolatile organic compounds, etc. into the atmosphere and aquatic systems. Thus, the newlineluminescence-based detection, which is preferred because of its high sensitivity, fast response newlinetime, real-time monitoring, and easy portability, of these toxic substances is of vital newlineimportance and demands the design of efficient luminescent materials. Both luminescent newlineorganic and metal-organic probes have been reported for this purpose. The organic probes are newlinebased on highly and#61552;-conjugated organic moieties with signalling and recognition units, while newlinethe metal-organic probes include both aromatic organic and inorganic counterparts with newlinefunctional interaction and recognition sites. The presence of different interaction sites in these newlineluminescent materials can be utilised to detect targeted analytes with high selectivity and newlinesensitivity.