A universal and robust strategy using polyurethane sponge as a precursor was developed to synthesize highly-soluble nitrogen-doped carbon quantum dots via solvothermal method.

Simultanagnosia is a neuropsychological disorder characterized by a restriction of visuospatial attention. In addition, patients are able to identify local elements of a scene, but not the global whole. This may be due to a failure to scan and assemble local elements into a global whole (i.e. connect-the-dots). We monitored the eye movements of a simultanagnosic patient while she identified loc...

AbstructQuantum-dot cellular automata (QCA) has been proposed as a replacement for CMOS circuits. The major difference between QCA and CMOS is that electronic charge, not current, is the information carrier. A complete set of logic gates has been created and some have been experimentally tested with metal-dots acting as quantum dots. Molecular implementations are currently being examined. This ...

Multicolor fluorescent hollow carbon spheres (HCSs) are fabricated by an easy one-step route of in situ pyrolysis process with the use of natural scales and collagen powders as the precursor. The gas blow forming mechanism and photoluminescence (PL) emission mechanism of HCSs have been thoroughly discussed and proved that HCSs represent the first examples of three-dimensional multicolor fluores...

BACKGROUND Globally, Public-Private Mix (PPM) models of service delivery are recommended as a strategy for improving tuberculosis (TB) control. Several models of PPM-DOTS have been initiated under the Revised National TB Control Programme (RNTCP) in India, but scaling up and sustaining successful projects has remained a challenge. AIM This paper examines factors accounting for the sustainabil...

Biocompatible chitosan-coated ZnS quantum dots [CS-ZnS QDs] and chitosan-coated ZnS:Mn2+ quantum dots [CS-ZnS:Mn2+ QDs] were successfully fabricated via a convenient one-step γ-radiation route. The as-obtained QDs were around 5 nm in diameter with excellent water-solubility. These QDs emitting strong visible blue or orange light under UV excitation were successfully used as labels for PANC-1 ce...

Abstract We present the results of theoretical studies on operations with charge qubits in the system composed of two tunnel-coupled semiconductor quantum dots whose two lowest states (localized in different dots) define the logical qubit states while two excited states (delocalized between the dots) serve for the electron transfer from one dot to another under the influence of the laser pulse....