Abstract: The present invention relates to an ironmaking feedstock comprising a solid CaFe3O5 phase. The ironmaking feedstock may be produced by a process comprising reacting a combination of a calcium source and magnetite at elevated temperature under reducing conditions sufficient to produce the solid CaFe3O5 phase. The product may be in the form of agglomerates such as pellets, with a compressive strength such that the product is suitable for transportation.

Abstract: A composition comprising reduced graphene oxide in the form of sheets that are interconnected to define pores between the sheets.

Abstract: The present application discloses a spectroscopy probe for a Raman spectroscopy system, and methods for preparing filters for the probe. A method for forming an SERS substrate which can optionally be used with the probe is also described. The spectroscopy probe is formed using a double-clad optical fibre probe tip, the double-clad optical fibre (DCF) having a single mode core, multimode inner cladding, and outer cladding, and a micro-filter fixed to the distal end of the optical fibre probe tip. The micro-filter has a short pass or band pass filter configured to align with the DCF core to filter silica Raman background generated by laser excitation in the single mode core, and a long pass filter configured to suppress Rayleigh scattering from the sample while allowing Raman scattered wavelengths to be transmitted through the inner cladding.

Abstract: A method, including irradiating graphene oxide (GO) with a beam of light or radiation to form reduced graphene oxide (RGO) in a three-dimensional (3D) pattern, wherein the RGO is porous RGO with pores having sizes tuned by controlling the beam of light or radiation.

Abstract: The present application discloses a spectroscopy probe for a Raman spectroscopy system, and methods for preparing filters for the probe. A method for forming an SERS substrate which can optionally be used with the probe is also described. The spectroscopy probe is formed using a double-clad optical fibre probe tip, the double-clad optical fibre (DCF) having a single mode core, multimode inner cladding, and outer cladding, and a micro-filter fixed to the distal end of the optical fibre probe tip. The micro-filter has a short pass or band pass filter configured to align with the DCF core to filter silica Raman background generated by laser excitation in the single mode core, and a long pass filter configured to suppress Rayleigh scattering from the sample while allowing Raman scattered wavelengths to be transmitted through the inner cladding.

Abstract: A preparation comprised of one or more pellets having an outer shell and core. The outer shell is made of dissolvable material and said core containing poly (ethylene glycol).

Abstract: A system is provided for assessing heard injury criterion (HIC) by analyzing signals received from sensors of a sensor array to calculate an impact force on an impact area, determine the linear acceleration based on the impact force and mass of the wearer's head. HIC values are calculated within a variable duration sliding window across a time period within which an impact occurs based on the integral of linear acceleration for the time period of the window, to determine a maximal HIC which is converted to a biofeedback signal.

Abstract: The invention relates in general to porous graphene-based films. In particular, the invention relates to a process for the preparation of a porous graphene-based films comprising reduced graphene oxide. The invention also relates to porous graphene-based films prepared by the process and to uses of such porous graphene-based films, in particular, in filtration applications. The invention further relates to porous multi-zone graphene-based films comprising different zones of different porosity.

Abstract: A photovoltaic (PV) structure for generating electrical power from light, the structure including an enhancing layer for increasing the absorption of the light into the structure, the enhancing layer including: a wrinkled graphene layer configured to trap the light in the PV structure; and aluminum nanoparticles configured to scatter the light into the PV structure.

Abstract: A bead immobilization method including receiving at least one bead in at least one well in a casting surface, and casting a casting material over the casting surface to form a reverse casting in which the at least one bead is cast onto at least one post upstanding from a surface of the reverse casting.

Abstract: The invention relates to materials that exhibit biocidal activity and in particular to surfaces that exhibit novel surface topography that is lethal to cells on contact. The invention also relates to devices comprising such surfaces, to methods of producing the surfaces and to methods of eliminating or reducing cellular survival wherein cells are exposed to the surfaces. In particular the invention relates to a synthetic biocidal surface comprising an array of nanospikes that are lethal to cells on said surface due to piercing of cell membranes by said nanospikes and to a method of producing a synthetic biocidal surface comprising an array of nanospikes that are lethal to cells on said surface due to piercing of cell membranes by said nanospikes, which comprises exposing a silicon comprising substrate surface to reactive-ion etching.

Abstract: A thin-film solar cell product, including: a thin film semiconductor having one or more solar cells formed therein, the solar cells having a front surface for receiving incident sunlight, and a rear surface; at least one reflective layer to reflect light that has passed through the thin film semiconductor without having been absorbed therein; and a scattering layer including broadband scattering particles configured to scatter light incident upon the scattering layer to increase the absorption of the light in the solar cells.

Abstract: An imaging system including a multi-mode fiber and a gradient index (GRIN) lens. The invention also relates to a system including a multi-mode fiber, such as a double-clad photonic crystal fiber, for transmitting an excitation signal to a sample for the purpose of imaging, and a scanning mechanism, which preferably includes a microelectromechanical system (MEMS) mirror, for reflecting the excitation signal in varying directions in order to scan the sample.

Abstract: A bead immobilization method including receiving at least one bead in at least one well in a casting surface, and casting a casting material over the casting surface to form a reverse casting in which the at least one bead is cast onto at least one post upstanding from a surface of the reverse casting.

Abstract: The invention relates to materials and devices including these materials which have three-dimensional optical data storage capabilities, as well as to related methods and apparatus for storage, reading and erasing optical data. In particular, the invention relates to a three-dimensional optical data storage device comprising a data storage material which comprises a polymer matrix and nematic liquid crystal droplets wherein the nematic liquid crystal droplets are dispersed through the polymer matrix.

Abstract: A non-linear fluorescence microscope or endoscope includes: (a) a source of coherent light suitable to initiate non-linear fluorescence in a sample of interest located at a sample region; (b) a first light conductor positioned to receive at its terminal light from the light source and direct the light to a coupler; (c) a second light conductor located to receive light introduced to the coupler from the first conductor and direct the light to the sample via a sample end of the second conductor, the sample end also located to receive fluoresced light from the sample such that the second conductor may direct the fluoresced light to the coupler; and (d) a third light conductor located to direct fluoresced light from the coupler to a light detection device via a terminal of the third light conductor.

Abstract: A separator for separating material from a fluid which includes an inlet, a separating chamber in fluid communication with the inlet, a holding chamber, a deflector for deflecting material entrained in or moving with fluid entering the separating chamber from the inlet towards the holding chamber, and an outlet for permitting flow of fluid from which the material has been removed from the separating chamber.