Abstract: An ultrasensitive method for detecting non-aromatic non-planar nitroamine analytes in a sample is provided.

Abstract: The present invention provides an electrode comprising a conductive surface connected to a composite matrix of at least one noble metal nano-particle, at least one photo-catalytic element and at least one connecting group, photovoltaic cells and devices comprising said electrode and processes for preparing said electrode.

Abstract: An ultrasensitive method for detecting non-aromatic non-planar nitroamine analytes in a sample is provided.

Abstract: An ultrasensitive method for detecting analytes in a sample is provided. The method involves the use of a matrix of nanoparticles which are associated with recognition groups capable of undergoing interaction with the analyte.

Abstract: Disclosed is an electrode for determining an analyte in a liquid medium, such as glucose in body subcutaneous fluids. The electrode includes a conductive surface and a matrix bound thereto. The matrix includes at least two species of components that comprise one or more species of enzymes and one or more species of metal nanonparticle. The components may be covalently bound to one another through one or more first binding moieties and the matrix may be covalently bound to the conductive surface through one or more same or different second binding moieties. The one or more enzyme species can catalyze a reaction in which an analyte is reacted to yield a product. The catalysis may alter the electric properties or response of the electrode.

Abstract: Provided is an electrode including a conductive surface connected to a matrix; the matrix including a plurality of semiconductor nanoparticles and noble metal nanoparticles, substantially each of which is connected to another nanoparticle of the plurality of nanoparticles by at least one matrix connecting group and at least a portion of the plurality of nanoparticles of the matrix is each connected to the conductive surface by at least one surface connecting group. Further provided are photovoltaic cells and devices including electrode of the invention.