The sensing of microcystin-LR (MC-LR) as a nonfluorescent species is still challenging since it has negligible influence on the emission fluorescent nanomaterials. Herein, well-defined “on–off–on” indirect chemosensing strategy developed by means nitrogen/phosphorus-codoped carbon dots (N/P CDs) for highly sensitive and selective MC-LR determination. nanoscale N/P CDs were conveniently synthesi...

Natural and synthetic purine derivatives such as caffeine, theophylline, 6-mercaptopurine and 8-chlorotheophylline are important drugs. Due to the structural similarity of these compounds, it is intrinsically difficult to prepare chemosensors for their selective optical detection. Here, we describe a sensor array which can be used to differentiate pharmacologically important purine derivatives ...

Electrospinning is a simple and cost-effective approach for the production of nanofibers and assemblies with controllable structures. In this work, based on sol–gel chemistry and the electrospinning technique, porphyrin-doped nanocomposite fibers with a form of nanofibrous membrane were successfully fabricated without the addition or help of polymers, and were demonstrated as novel fluorescence...

It has now been just over eight years since I had the pleasure of introducing Chemosensors to world [...]

This critical review is focused on examples reported in the year 2009 dealing with the design of chromogenic and fluorogenic chemosensors or reagents for anions (264 references).

Chitosan is a biopolymer derived from chitin. It non-toxic, biocompatible, bioactive, and biodegradable polymer. Due to its properties, chitosan has found applications in several different fields such as agriculture, food industry, medicine, paper fabrication, textile water treatment. In addition these good film-forming ability which allows it be widely used for the development of sensors biose...