Disclosed is a system and method for shaped incoherent light for control (SILC). More particularly, disclosed is a method for controlling the evolution of photo-responsive systems (including chemical species, biochemical species or material compounds) using a device capable of producing shaped incoherent light for such control. The disclosed device integrates a polychromatic incoherent source in an adaptive feedback control loop.

A dialysis system is provided that includes a dialysis machine and a potassium sensing device that is configured to measure the concentration of potassium in the patient's blood, in spent dialysate resulting from treating the patient, or in both. The potassium sensing device can be configured to generate a sensed value of the concentration of potassium. A control and computing unit, including a processor and a memory, is configured to receive the sensed value, compare the value with one or more values stored in the memory, and generate a control signal based on the comparison. A potassium infusion circuit uses the control signal to infuse supplemental potassium solution into the treatment dialysate, a replacement fluid, or both. The memory can include stored patient-historical and population data.

A dialysis system is provided that includes a dialysis machine and a potassium sensing device that is configured to measure the concentration of potassium in the patient's blood, in spent dialysate resulting from treating the patient, or in both. The potassium sensing device can be configured to generate a sensed value of the concentration of potassium. A control and computing unit, including a processor and a memory, is configured to receive the sensed value, compare the value with one or more values stored in the memory, and generate a control signal based on the comparison. A potassium infusion circuit uses the control signal to infuse supplemental potassium solution into the treatment dialysate, a replacement fluid, or both. The memory can include stored patient-historical and population data.

A method for measuring thermal diffusivity/conductivity of a microscale sample includes placing a metallic disk atop the sample, and disposing a nanomembrane over the sample and over the metallic disk so that the nanomembrane, so that the metallic disk, the nanomembrane and the sample are in thermal equilibrium with one another. A laser beam is directed to fall onto the nanomembrane over the sample, while a radiation sensor is operated to detect photoluminescent radiation emitted by the nanomembrane in response to the laser beam. A spectral shift in the detected photoluminescent radiation emitted by the nanomembrane is determined, and thermal diffusivity/conductivity is calculated from the determined spectral shift of the photoluminescence.

A method for measuring thermal diffusivity/conductivity of a microscale sample includes placing a metallic disk atop the sample, and disposing a nanomembrane over the sample and over the metallic disk so that the nanomembrane, so that the metallic disk, the nanomembrane and the sample are in thermal equilibrium with one another. A laser beam is directed to fall onto the nanomembrane over the sample, while a radiation sensor is operated to detect photoluminescent radiation emitted by the nanomembrane in response to the laser beam. A spectral shift in the detected photoluminescent radiation emitted by the nanomembrane is determined, and thermal diffusivity/conductivity is calculated from the determined spectral shift of the photoluminescence.

The invention relates to a porous optical fiber for the detection of an analyte in a fluid by optical probing. The optical fiber has a first end and a second end opposite to the first end, as seen in a longitudinal direction, and a circumferential surface delimiting the optical fiber in radial directions perpendicular to the longitudinal direction. The optical fiber comprises a core adapted for supporting at least one optical mode propagating in the longitudinal direction, the core having a circumferential interface delimiting the core in the radial directions. The optical fiber further comprises pores penetrating from an opening at the circumferential surface through the circumferential interface into the core of the optical fiber, wherein a cross-sectional dimension of the openings is dimensioned so as to prevent a particulate fraction of the fluid from entering the pores, while allowing the analyte to enter the pores.

The invention relates to a porous optical fiber for the detection of an analyte in a fluid by optical probing. The optical fiber has a first end and a second end opposite to the first end, as seen in a longitudinal direction, and a circumferential surface delimiting the optical fiber in radial directions perpendicular to the longitudinal direction. The optical fiber comprises a core adapted for supporting at least one optical mode propagating in the longitudinal direction, the core having a circumferential interface delimiting the core in the radial directions. The optical fiber further comprises pores penetrating from an opening at the circumferential surface through the circumferential interface into the core of the optical fiber, wherein a cross-sectional dimension of the openings is dimensioned so as to prevent a particulate fraction of the fluid from entering the pores, while allowing the analyte to enter the pores.

The invention relates to a device and a method for determining a wavelength of radiation.

The invention relates to a device and a method for determining a wavelength of radiation.

Methods for determining desired doping conditions for a semiconducting single-walled carbon nanotube (s-SWCNT) are provided. One exemplary method includes doping each of a plurality of s-SWCNT networks under a respective set of doping conditions; determining a thermoelectric (TE) power factor as a function of a fractional bleach of an absorption spectrum for the plurality of s-SWCNT networks doped under the respective sets of doping conditions; and using the function to identify one of the TE power factors within a range of the fractional bleach of the absorption spectrum. The identified TE power factor corresponds to the desired doping conditions.