Abstract: Disclosed is a ZnO/carbon allotrope composite for a formaldehyde sensor. The ZnO/carbon allotrope composite for a formaldehyde sensor comprising a substrate, a conductive metal coating layer formed on the substrate, a ZnO seed layer formed on the coating layer, ZnO nanorods grown from the ZnO seed layer, and a carbon allotrope layer formed on and overlapping with the nanorods. Also disclosed is a method for preparing a ZnO/carbon allotrope composite for a formaldehyde sensor. The method includes depositing a conductive metal coating layer on a substrate, sputtering Zn on the conductive metal coating layer to form a ZnO layer, followed by annealing to form ZnO seeds in the ZnO layer, growing ZnO nanorods from the ZnO seeds; and coating a carbon allotrope on the ZnO nanorods to form a carbon allotrope layer overlapping with the nanorods.

Abstract: The present invention relates to a biosensor that uses a cell that expresses a chemosensory receptor that can detect sugar, and an Alzheimer's disease diagnostic apparatus comprising the same. The biosensor and the Alzheimer's disease diagnostic apparatus of the present invention can sensitively detect a particular sugar in a sample, more inexpensively and more quickly, by fixing a drosophila cell having an over-expressed target sensory receptor protein on the cell surface through genetic engineering, and can thereby be efficaciously used for diagnosing Alzheimer's disease.

Abstract: The present invention relates to a biosensor that uses a cell that expresses a chemosensory receptor that can detect sugar, and an Alzheimer's disease diagnostic apparatus comprising the same. The biosensor and the Alzheimer's disease diagnostic apparatus of the present invention can sensitively detect a particular sugar in a sample, more inexpensively and more quickly, by fixing a drosophila cell having an over-expressed target sensory receptor protein on the cell surface through genetic engineering, and can thereby be efficaciously used for diagnosing Alzheimer's disease.