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Systems and methods for non-destructive packaged tablet, capsule and liquid medicine identification is provided. The system also includes a digital optical phase conjugation system configured to THz time domain system sampling of the sample while defocusing the THz radiation to a sub-interface of packaging of the packaged tablet, capsule or liquid medicine, in order to avoid the direct reflection of the THz radiation. The method includes measuring THz radiation reflected from a surface of a sample of packaged tablet, capsule or liquid medicine and shifting a focal point of the THz radiation from the surface of the sample through the packaging until the focal point focuses the THz radiation on a container/medicine interface of the sample of packaged tablet, capsule or liquid medicine. The method also includes measuring THz radiation reflected from the container/medicine interface of the sample of packaged tablet, capsule or liquid medicine, calculating an absorption spectra of the measured THz radiation, and auto-identifying by a processing device in response to the absorption spectra of the measured THz radiation a type of medicine within the sample of packaged tablet, capsule or liquid medicine in response to cluster analysis to group the type of medicine within the sample of packaged tablet, capsule or liquid medicine with respect to a database of THz reflectance spectra information for a plurality of medicines.

A light emitting device, a method of fabricating a light emitting device and a method of controlling light emission. The light emitting device includes a plasmonic structure. The plasmonic structure is configured to have a plurality of localized surface plasmon resonances. The light emitting device also includes a broadband light emitting layer having an emission spectrum substantially overlapping wavelengths of the localized surface plasmon resonances. A spacer layer is disposed between the plasmonic structure and the broadband light emitting layer. A color of light emitted by the broadband light emitting layer is tunable by the localized surface plasmon resonances of the plasmonic structure.

Present disclosure relates to a solvent-free method of encapsulating a hydrophobic active in personal care, hydrophobic active in crop protection or a hydrophobic active pharmaceutical ingredient (API) in polymeric nanoparticles. The method includes mixing the hydrophobic active in a polymer melt, wherein the polymer melt comprises a melt of a block co-polymer, wherein the polymer melt acts as a solvent for the hydrophobic active. The method further includes maintaining the polymer melt in water for sufficient time to allow self-assembly of the block co-polymer to encapsulate the hydrophobic active therein.

This invention relates to a sensor that detects bacteria cells comprising (a) a primary negatively charged, nanoparticulate sensing material; (b) a secondary positively charged, fluorescent sensing material; (c) a housing; and (d) at least one illuminator; wherein said housing contains said primary negatively charged, nanoparticulate sensing material, said secondary positively charged fluorescent sensing material and a sample potentially comprising bacteria in aqueous medium, wherein said illuminator provides light of at least one pre-specified wavelength ?i to excite at least said secondary positively charged, fluorescent material, wherein said secondary positively charged, fluorescent material electrostatically attached to bacteria cells provides at least one fluorescent response at a second different wavelength ?n wherein both i and n are integers, wherein said negatively charged, nanoparticulate sensing material electrostatically attached to said fluorescent material suppresses fluorescing of said fluorescent material at said second wavelength ?n; and wherein said housing permits illumination of the contents of said housing by said illuminator and wherein said housing further permits the detection of a fluorescent response at a second wavelength ?n. The negatively charged material includes (dsDNA coated) spherical AuNPs and graphene oxide (GO). The positively charged fluorescent material includes water soluble cationic conjugated polyelectrolytes (COPE) or positively charged peptide/polymer labeled with fluorescence dye. The sensor makes use of the FRET phenomenon between the primary and secondary sensing materials. The sensor allows making a distinction between living and dead bacteria and can measure the total bacteria count. A method for detecting bacteria utilizing the sensor is another part of the invention.

The present disclosure relates to a phase change material (PCM) composition and a process for preparation thereof, wherein said composition comprising a phase change material, glass fibers and xanthan gum. In a preferred embodiment, the phase change material is water (or ice) and the glass fibers are glass wool. The disclosure also relates to a stackable and sealable package enclosing the PCM composition. In a particular embodiment, the PCM composition is used to prepare a cold box that may be used in cold chain transportation.

There is provided an aqueous coating suspension that comprises: a) layered double hydroxide (LDH); b) at least one modifier; and c) a polymer matrix. In a preferred embodiment, the at least one modifier is a silane coupling agent, a fatty acid and/or an organic phosphonic acid and the polymer matrix comprises a polyvinyl alcohol (PVA) and a polyacrylic acid (PAA). There is also provided a process of preparing the coating suspension, a method for forming a film on a substrate, and use of the film as oxygen barrier for making packaging films.

OPTICAL LENS AND METHOD OF FORMING THE SAME Various embodiments may relate to an optical lens. The optical lens may include a substrate. The optical lens may further include a plurality of concentric rings on the substrate. The plurality of concentric rings may include a dielectric. The plurality of concentric rings may be configured to focus light onto a focal spot and may be further configured to decrease a size of the focal spot to below a diffraction limit of the light by interference of the focused light at a focal length of at least 600 Am. FIG. 2

An antenna comprising a metallic nanostructure and a dielectric nanostructure. Each nanostructure is disposed on a planar surface of a substrate. The dielectric nanostructure is spaced apart from the metallic nanostructure and configured to direct electromagnetic radiation emitted or scattered by the metallic nanostructure.

The present invention relates to a non-enzymatic colorimetric test strip for detection ofethanol vapour content in a vapour sample and a method of detecting ethanol vapourcontent using the test strip. The test strip comprises a substrate having a sampledetection zone and a control zone; a first dye deposited and immobilized onto a regionwithin the sample detection zone; and a second dye deposited and immobilized onto aregion within the control zone. The first dye in the sample detection zone undergoes acolour change in response to ethanol vapour in the vapour sample that comes intocontact with the first dye on the test strip. The method comprises contacting a vapoursample with the first dye in the sample detection zone of the test strip, capturing animage of the entire test strip and performing image analysis of the captured image todetect the presence of ethanol and determine the concentration of ethanol in thevapour sample.

According to the present disclosure, a method of reversibly dissolving cellulose in an organic solvent is provided. The method includes mixing a solution comprising dimethyl sulfoxide and cellulose with an organic base in the presence of carbon dioxide, wherein the organic base is a guanidine represented by a formula of: wherein each of R1, R2 and R3 is C1-C20 alkyl; wherein each of R4 and R5 is hydrogen or C1-C20 alkyl; and maintaining the presence of carbon dioxide to form a transparent solution comprising dissolved cellulose in the form of cellulose carbonate anions.