Abstract: Methods for the non-hot-injection synthesis of semiconductor nanocrystals are described. For example, a multi-podal cadmium selenide nanocrystal may be produced by a method including heating a degassed mixture comprising cadmium oxide, selenium, trioctylphosphine, and a carboxylic acid in a non-coordinating solvent from about room temperature to about 210° C., where the multi-podal cadmium selenide nanocrystal may be a tetrapodal cadmium selenide nanocrystal.

Abstract: Disclosed herein are compositions and one-step synthesis of core/shell nanocrystal quantum dots. In an embodiment, a method of making a nanocrystal includes mixing at least one cationic precursor, at least one anionic precursor, and at least one solvent to form a mixture, heating the mixture, precipitating the mixture to form a nanocrystal precipitate, and isolating the nanocrystal precipitate. The formed nanocrystal comprises an outer shell encapsulating an inner core and exhibits substantial crystallinity, monodispersity, and reproducibility.

Abstract: The present application relates to polymer-conjugated quantum dots. The quantum dots can include, for example, an inorganic core conjugated to a polymer. The quantum dots may, in some embodiments, be water-soluble and exhibit superior photoluminescence. Also disclosed are methods of making and using the quantum dots.

Abstract: A general, facile, and reversible nanocrystal (NCs) phase transfer protocol via ligand exchange using nucleotides and/or nucleosides is provided to generate reversibly water-soluble nanocrystals. This phase transfer strategy can be employed on a wide variety of chemically synthesized nanostructured materials including semiconductors, metal oxides and noble metals with different sizes and shapes. The nucleotide/nucleoside-capped nanocrystals can disperse homogeneously in aqueous or alcohol media retaining, for example, high photoluminescence quantum yields. The disclosed water-soluble nanocrystals have excellent colloidal and photoluminescent stability independent on the pH and ionic strength, minimal hydrodynamic size, and are stable in cells and suitable for in vitro cell labeling, cell tracking, and other bioimaging applications.

Abstract: A detecting device for assembly position of vehicle body side walls includes a first detecting device for location surface of front position and/or a second detecting device for location surface of reverse position. The first detecting device includes two first rules (22) and a front detecting sample (21), of which the top surface (27) is flat, and the lower surface (26) is a measuring surface. The two first rules (22) are arranged at the both ends of sides of the front detecting sample (21). The first rules (22) are perpendicular to the top surface (27) of the front detecting sample (21). The second detecting device includes two second rulers (32) and a reverse detecting sample (31), of which the top surface (37) is flat, and the lower (36) surface is a measuring surface. The two second rules (32) are arranged at the both ends of sides of the reverse detecting sample (31).

Abstract: The present application relates to polymer-conjugated quantum dots. The quantum dots can include, for example, an inorganic core conjugated to a polymer. The quantum dots may, in some embodiments, be water-soluble and exhibit superior photoluminescence. Also disclosed are methods of making and using the quantum dots.

Abstract: The present invention relates to nanocrystals consisting of a homogeneous ternary or quaternary alloy having the composition M11-xM2xA and M11-xM2xAyB1-y, respectively, a process for its production, as well as to uses of such nanocrystals such as as short wavelength light-emitting devices, and in the detection of analytes, in particular biomolecules.

Abstract: The present invention relates to nanocrystals consisting of a homogeneous ternary or quaternary alloy having the composition M11-xM2xA and M11-xM2xAyB1-y, respectively, a process for its production, as well as to uses of such nanocrystals such as as short wavelength light-emitting devices, and in the detection of analytes, in particular biomolecules.