Abstract: A reusable shipping box with a shipping container state and a compacted state is disclosed. The reusable shipping box may comprise a lid that seals the shipping box, a base, and a set of four sidewalls. The shipping box may also comprise a zipper that: (i) zips down from the lid to the base between two adjacent sidewalls in the set of four sidewalls; (ii) is closed in the shipping container state; and (iii) is open in the compacted state. The shipping box may also comprise a cavity that is: (i) surrounded by the set of four sidewalls, the lid, and the base in the shipping container state; (ii) accessible via the lid when the shipping box is open; and (iii) collapsed in the compacted state.

Abstract: A reusable shipping box with a shipping container state and a compacted state is disclosed. The reusable shipping box may comprise a lid that seals the shipping box, a base, and a set of four sidewalls. The shipping box may also comprises a zipper that: (i) zips down from the lid to the base between two adjacent sidewalk in the set of four sidewalls; (ii) is closed in the shipping container state; and (iii) is open in the compacted state. The shipping box may also comprises a cavity that is: (i) surrounded by the set of four sidewalls, the lid, and the base in the shipping container state; (ii) accessible via the lid when the shipping box is open; and (iii) collapsed in the compacted state.

Abstract: A reusable shipping box with a shipping container state and a compacted state is disclosed. The reusable shipping box may comprise a lid that seals the shipping box, a base, and a set of four sidewalls. The shipping box may also comprises a zipper that: (i) zips down from the lid to the base between two adjacent sidewalk in the set of four sidewalls; (ii) is closed in the shipping container state; and (iii) is open in the compacted state. The shipping box may also comprises a cavity that is: (i) surrounded by the set of four sidewalls, the lid, and the base in the shipping container state; (ii) accessible via the lid when the shipping box is open; and (iii) collapsed in the compacted state.

Abstract: The present invention is a chemical sensor including a polymer substrate capable of reversible adsorption of an analyte organic compound, a source of Raman excitation radiation, positioned for directing this Raman excitation radiation onto the substrate, thus generating a Raman signal, and a Raman signal detector, positioned for detecting this Raman signal. Another aspect of this invention is the sensing tip of such a sensor, including a polymer substrate capable of reversible adsorption of an analyte organic compound, focusing means for directing excitation radiation onto the polymer substrate to generate a Raman signal from the organic compound, and collection means, for transmitting this Raman signal to a detector. Another aspect of this invention is an array of sensing tips, each using a different polymer substrate selected for selective adsorption of an analyte species, coupled to an excitation radiation source and a detector.

Abstract: A refractive index-based sensor uses a light source and an optical fiber to direct an optical beam towards a sensor/environment face at a specific angle. The sensor has a predetermined shape selected such that the light directed into the sensor will have a specific angle of incidence designed to detect a plurality of liquids. A second optical fiber carries the light reflected off the sensor/environment face to a photodetector. The optical beam will either be transmitted through or reflected off the sensor/environment face based upon the refractive indices of the sensor and the environment and upon the angle of incidence of the optical beam. The amount of light reflected is indicative of the refractive index of the material in a given area of the sensor/environment face and, thus, the type of material. By adjusting the angle at which the light is directed to the sensor/environment face, the photodetector response can be calibrated to identify the type of liquid present at the sensor/environment face.