Abstract: Disclosed are Surface Enhanced Resonance Raman Spectroscopy (SERRS) probes and their use in detection methods for bioassays. Further disclosed is signal optimization of surface enhanced resonance Raman probes achieved by chemical modification of the probes. Also disclosed are methods for increasing the Raman cross-section by varying the chemical composition of a linker group linking a signal molecule to a nanoparticle surface. The signal molecules, such as dyes, may be modified with a linker group designed to both enhance the SERRS signal and to couple the signal molecule to the nanoparticle surface.

Abstract: A magnetic particle and fabrication method thereof. The magnetic particle comprises a polymer core, a magnetic material layer covering the polymer core, and a silicon containing layer covering the magnetic material layer. In addition, the magnetic particle may further comprise a coupling agent on the silicon containing layer, and an active molecule connected to the coupling agent. The magnetic particles provide controllable size, uniform diameter distribution, high magnetization, improved storage stability, and modified surface for targeting biomolecules for biomaterial separation and environmental analysis.

Abstract: Disclosed are Surface Enhanced Resonance Raman Spectroscopy (SERRS) probes and their use in detection methods for bioassays. Further disclosed is signal optimization of surface enhanced resonance Raman probes achieved by chemical modification of the probes. Also disclosed are methods for increasing the Raman cross-section by varying the chemical composition of a linker group linking a signal molecule to a nanoparticle surface. The signal molecules, such as dyes, may be modified with a linker group designed to both enhance the SERRS signal and to couple the signal molecule to the nanoparticle surface.

Abstract: A magnetic particle and fabrication method thereof. The magnetic particle comprises a polymer core, a magnetic material layer covering the polymer core, and a silicon containing layer covering the magnetic material layer. In addition, the magnetic particle may further comprise a coupling agent on the silicon containing layer, and an active molecule connected to the coupling agent. The magnetic particles provide controllable size, uniform diameter distribution, high magnetization, improved storage stability, and modified surface for targeting biomolecules for biomaterial separation and environmental analysis.

Abstract: A blood sugar detecting system using emission quantum dots is provided. A non-cyclodextran carbohydrate-containing molecule and a glucose-recognizing molecule respectively bind to an emission quantum dot and a light-absorbing molecule to form the blood sugar measuring system. When the non-cyclodextran carbohydrate-containing molecule and the glucose-recognizing molecule bind together to bring the emission quantum dot very close to the light-absorbing molecule, a fluorescence resonance energy transfer effect is happened between them. Glucose can compete with the non-cyclodextran carbohydrate-containing molecule for the binding site of the glucose-recognizing molecule to detect glucose concentration variation.