Enzymatic Determination of Diglyceride Using an Iridium Nano-Particle Based Single Use, Disposable Biosensor

A single use, disposable iridium-nano particle contained biosensor had been developed for the determination of diglyceride (DG). In this study hydrogen peroxide, formed through the enzymatic breakdown of DG via lipase, glycerol kinase and glycerol 3-phosphate oxidase, was electrochemically oxidized at an applied potential of +0.5 V versus the Ag/AgCl reference electrode. The oxidation current was then used to quantify the diglyceride concentration. Optimum enzyme concentrations and the surfactant loading used were established for successful sensor response. Good linear performance was observed over a DG concentration range of 0 to 25 μM in phosphate buffer and bovine serum media

P型透明導電氧化物及其製造方法

本發明係利用外質摻雜將氮原子導入P型金屬氧化物內，使氮原子置於晶格內或間隙位置，在能隙內提供一受體能階。P型金屬氧化物可為CuAlO2、SrCu2O2、CuGaO2或CuInO2。由於受體能階接近價帶，此能階可以接收來自於價帶的電子，留下電洞於價帶內，增加的電洞載子濃度可貢獻於導電性質上，進而增加P型金屬氧化物的導電度

含有奈米金屬之微胞溶液及其製造方法

本發明係關於一種含有奈米金屬的聚合體微胞溶液的製備法。本發明主要是利用具有親水基和疏水基兩性結構的聚合體或共聚合體與金屬前驅鹽類先於極性溶劑中形成聚合體-金屬螯合物，接著再進行還原反應使奈米金屬結晶體或微粒生成於螯合物系統中。此螯合物系統再經由水相或非極性溶劑的沖泡以及攪拌程序後，形成一種含有奈米金屬結晶或微粒的聚合體微胞溶液。本發明之製程簡單，反應溫度低，除了可配製廣範圍濃度的含金屬微胞溶液之外，並可經由金屬鹽類的濃度和溶劑的種類等因素的調變，來控制含金屬微胞的粒徑大小和形狀

Enhanced photodegradation by RGO/ZnO core-shell nanostructures

RGO/ZnO core-shell nanostructures were synthesized by a simple sol-gel method and then heated to 500℃at 4 × 10−3 Torr to remove moisture. The photodegradation efficiency and its related rate constant (k) were evaluated by using it in the degradation of methylene blue (MB, C16H18N3ClS) solution. The RGO/ZnO CSNs has a high photodegradation efficiency, which is attributable to the increased specific surfaces area, enhanced absorption of the visible light (λ = 380−780 nm), the defect levels of and which supply the extra electrons, highly effective charge-carrier transfer, and localized surface plasmon resonance (LSPR) at the interface between dielectric ZnO and electric RGO, resulting in the effective absorbance of MB molecules and an increase in the electron-hole lifetime, and a consequent increase in photodegradation efficiency. A critical loading of 800 ppm RGO was identified and found to provide an efficiency of higher than 93 % in 15 min under visible radiation

疏水性含碳材料及其製造方法

本發明係關於一種疏水性含碳材料及其製造方法，係以電漿對含碳材料表面進行改質，以增加其疏水性而得。該疏水性含碳材料可為活性碳纖維，並作為薄膜電極之氣體擴散層，及進一步應用於燃料電池。經電漿改質的活性碳纖維不僅具有優異的疏水性，亦可維持良好的多孔性供氣體擴散，可有效提高燃料電池的功率輸出

Structure and Photoluminescence Properties of Thermally Synthesized V2O5 and Al-Doped V2O5 Nanostructures

Al-free and Al-doped V2O5 nanostructures were synthesized by a thermal-chemical vapor deposition (CVD) process on Si(100) at 850 °C under 1.2 × 10−1 Torr via a vapor-solid (V-S) mechanism. X-ray diffraction (XRD), Raman, and high-resolution transmission electron microscopy (HRTEM) confirmed a typical orthorhombic V2O5 with the growth direction along [110]-direction of both nanostructures. Metallic Al, rather than Al3+-ion, was detected by X-ray photoelectron spectroscopy (XPS), affected the V2O5 crystallinity. The photoluminescence intensity of V2O5 nanostructure at 1.77 and 1.94 eV decreased with the increasing Al-dopant by about 61.6% and 59.9%, attributing to the metallic Al intercalated between the V2O5-layers and/or filled in the oxygen vacancies, which behaved as electron sinks. Thus the Al-doped V2O5 nanostructure shows the potential applications in smart windows and the electrodic material in a Li-ion battery

Enhanced Photocurrent of the Ag Interfaced Topological Insulator Bi2Se3 under UV- and Visible-Light Radiations

Bi2Se3 is a topological quantum material that is used in photodetectors, owing to its narrow bandgap, conductive surface, and insulating bulk. In this work, Ag@Bi2Se3 nanoplatelets were synthesized on Al2O3(100) substrates in a two-step process of thermal evaporation and magnetron sputtering. X-ray diffractometer (XRD), high-resolution transmission electron microscopy (HRTEM), Raman spectroscopy, and x-ray photoelectron spectroscopy (XPS) revealed that all samples had the typical rhombohedral Bi2Se3. Field-emission scanning electron microscopy (FESEM)-energy dispersive x-ray spectroscopy (EDS), XPS, and HRTEM confirmed the presence of the precipitated Ag. The optical absorptance of Bi2Se3 nanoplatelets in UV-visible range decreased with the Ag contents. Results of photocurrent measurements under zero-bias conditions revealed that the deposited Ag affected photosensitivity. A total of 7.1 at.% Ag was associated with approximately 4.25 and 4.57 times higher photocurrents under UV and visible light, respectively, than 0 at.% Ag. The photocurrent in Bi2Se3 at 7.1 at.% Ag under visible light was 1.72-folds of that under UV light. This enhanced photocurrent is attributable to the narrow bandgap (~0.35 eV) of Bi2Se3 nanoplatelets, the Schottky field at the interface between Ag and Bi2Se3, the surface plasmon resonance that is caused by Ag, and the highly conductive surface that is formed from Ag and Bi2Se3. This work suggests that the appropriate Ag deposition enhances the photocurrent in, and increases the photosensitivity of, Bi2Se3 nanoplatelets under UV and visible light