In machine olfaction, the design of applications based on gas sensor arrays is highly dependent on the robustness of the signal and data processing algorithms. While the practice of testing the algorithms on public benchmarks is not common in the field, we propose software for performing data simulations in the machine olfaction field by generating parameterized sensor array data. The software ...

Neutral N-amidothiourea based PET anion sensors bearing a pyrene fluorophore, 1-3, were synthesized and their fluorescent response toward anions was assessed. The anion quenching and binding constants were found to be much higher than those of the corresponding PET sensors bearing a simple thiourea receptor despite a higher oxidation potential of the electron donor and a relatively longer space...

Like many marine crustaceans, mantis shrimp rely on their sense of smell to find food, mates, and habitat. In order for olfaction to function, odorant molecules in the surrounding fluid must gain access to the animal's chemosensors. Thus fluid motion is important for olfaction, both in terms of the large scale fluid movements (currents, waves, etc.) that advect the odorants to the vicinity of t...

The development of synthetic receptors and chemosensors for anions has attracted much attention in recent years as the fundamental role of anions in biological and chemical processes has become increasingly understood. Biomacromolecules such as sulfate-binding proteins and a CIC chloride channel make use of hydrogen bonds as a major driving force to bind or transport anions through cell membran...

The facile surface functionalization of surfactant-free organic microparticles composed of polymeric 2,4,8,10-tetraoxa-3,9-diboraspiro[5.5]undecane allowed us to develop white-light emissive chemosensors for the real-time visual detection of Cu(2+) in HEPES buffer (pH 7.0) due to a synergistic response of fluorophores grafted onto the particles. A detection limit of 15.4 ppb for Cu(2+) in aqueo...

background and objectives: pseudomonas aeruginosa is one of the most important opportunistic pathogens in patients who suffer from immunodeficiency and burns. wound infections caused by p. aeruginosa can rapidly change to systemic and life threatening situation. the aim of this study was to apply florescent in situ hybridization (fish) method for rapid detection of p. aeruginosa in burrn patien...

Novel colorimetric receptors for fluoride ion sensing containing anthraquinone as a chromogenic signaling unit and imidazo-2,2'-bithiophene binding sites are reported. Well-defined color change was observed upon addition of fluoride ions to acetonitrile solutions of receptors 2. Compounds 2a-c, deprotonated after fluoride ion addition, were studied as metal ion chemosensors in the presence of Z...