Abstract: A sensing method of an electrochemical sensor including the following steps is provided. First, a fluorescent material is immobilized on a surface of an electrode so as to form a sensing electrode. The sensing electrode is then used to execute an electrochemical test of a target in a light-shielding environment.

Abstract: The present invention provides a hybridoma cell line (DSM ACC3145), wherein the hybridoma cell line produces an antibody which specifically binds to an amino acid sequence of type II collagen comprising: K-G-E-P-G-D-D-G-P-S-C (as set forth in SEQ ID NO. 1); and a method for detecting osteoarthritis, by identifying a presence of type II collagen in a urine sample through containing the urine sample with the said antibody.

Abstract: A compound of formula (I) is disclosed: wherein definitions of R1, R2, and R3 are the same as those defined in the specification. The compound of formula (I) can emit light via an intramolecular interaction of an imino group and an electron-donatable moiety contained in the compound. A photoluminescent organic composition is also disclosed, which includes a compound represented by formula (II) in the presence of an electron-donatable compound, wherein definitions of R4, R5, and R6 are the same as those defined in the specification. The photoluminescent organic composition can emit light via an intermolecular interaction of an imino group contained in the compound of formula (II) and an electron-donatable moiety contained in the electron-donatable compound.

Abstract: A method for making a fluorescent gold nano-material having a gold nanocluster and thiol ligands on a surface of the gold nanocluster includes reacting a mixture of a gold-containing compound, an alkyl alcohol, and a thiol compound.

Abstract: A nitrogenous gas sensor comprises a piezoelectricity plate which has a sensing surface; two transducers placed on the sensing surface of the piezoelectricity plate for transduction of electrostatic potential energy and acoustic energy, in order to generate surface acoustic waves on the piezoelectricity plate; and a sensing layer installed on the sensing surface of the piezoelectricity plate between the two transducers, which is consisted of polyaniline and tungsten oxide.

Abstract: A system for determining concentration of a predetermined osteoarthritis biomarker in a urine sample includes first cell and first limiting elements, a quartz crystal microbalance (QCM) sensor device having a sample contacting side, and a monitoring device. The first cell element has a sensor confronting side formed with a recess portion. The first limiting element is disposed at the sensor confronting side, is disposed to surround the recess portion, contacts the sample contacting side, and cooperates with the recess portion and the sample contacting side to confine a sample receiving space for receiving the urine sample. The QCM sensor device includes a quartz resonator and an antibody applied to the quartz resonator and capable of binding with the biomarker, generates a concentration signal corresponding to mass of the biomarker that binds to the antibody, and is coupled to the monitoring device to provide the concentration signal thereto for processing thereby.

Abstract: A method for preparing radioactive-substance adsorbent depositing on a carriable structure is revealed. The method uses a supercritical fluid to mix a first solution with a carrier. The first solution includes an extractant dissolved in a first solvent. By low surface tension and high permeability of the supercritical fluid, the extractant in the first solution deposit evenly on the carrier so as to form an adsorbent. Thus the adsorbent formed provides better adsorptivity for the radioactive substances.