BACKGROUND The advent of fluorescent nanosensors has enabled intracellular monitoring of several physiological analytes, which was previously not possible with molecular dyes or other invasive techniques. We have extended the capability of these sensors to include the detection of small molecules with the development of glucose-sensitive nano-optodes. Herein, we discuss the design and developme...

In this study, using a thirsty plant extract and simple hydrothermal method, nano-probe was introduced to detect the phenobarbital based on fluorescence. Functional groups, particle size, surface morphology, types of elements were identified analysis such as FTIR, TEM, SEM, EDX, respectively. The excitation at 355 nm emission intensity 446 for nano-probe, shows that various parameters pH, tempe...

The ability to sense the magnetic state of individual magnetic nano-objects is a key capability for powerful applications ranging from readout of ultradense magnetic memory to the measurement of spins in complex structures with nanometer precision. Magnetic nano-objects require extremely sensitive sensors and detection methods. We create an atomic spin sensor consisting of three Fe atoms and sh...

Not only the MCU stopping and the auto-reset problems but also the dead end transition problems in the Nano OS kernel of the sensor modules are analyzed in this paper. In order to avoid and control these problems, the stack-safe Nano OS kernel suitable for USN and the system state-monitor mechanism in the Nano OS are suggested, and the performance is evaluated by a number of experimentation. Th...

The sensing behavior of SnO(2)-based thick film gas sensors in a flow system in the presence of a very low concentration (ppb level) of chemical agent simulants such as acetonitrile, dipropylene glycol methyl ether (DPGME), dimethyl methylphosphonate (DMMP), and dichloromethane (DCM) was investigated. Commercial SnO(2) [SnO(2)(C)] and nano-SnO(2) prepared by the precipitation method [SnO(2)(P)]...

in the present work, high temperature tensile properties of medium density polyethylene (mdpe) and its nanocomposites are investigated. for this purpose mdpe reinforced with different weight percentages of nano-sized calcium (2, 5, 10) are produced by compression moulding method. tensile tests have been carried out at different temperatures, i.e. 30, 60, 90c using thermomechanical analysis (tm...

Biodegradable polymers have been widely used as scaffolding materials to regenerate new tissues. To mimic natural extracellular matrix architecture, a novel highly porous structure, which is a three-dimensional interconnected fibrous network with a fiber diameter ranging from 50 to 500 nm, has been created from biodegradable aliphatic polyesters in this work. A porosity as high as 98.5% has bee...