摘要:
A method is provided for forming a high-capacity, high-rate lithium ion battery cathode material. The method includes providing a synthesized material of electrochemically active plate-shaped nanoparticles and adding a plurality of appropriately sized diluent particles to the plate-shaped nanoparticles to form a suspension. Any liquid is removed from the solution to form a composite material. The method also includes processing the composite material to form a high-capacity, high-rate lithium ion battery cathode material.
摘要:
A method to bond carbon nanotubes to a surface. The mechanism of this bonding is studied, and shows that intercalation of alkali ions is possibly the central mechanism. Bonding pull-off forces of 4-5 N/cm2 were measured. This bonding also provides improved interfacial properties for other phenomenon, including improved thermal conductivity.
摘要:
A one-piece electronic module assembly is formed from a substantially rectangular baseplate on which an insulating film is mounted to carry circuit components. An enclosed assembly is completed by initially providing a pair of major bend axes across the baseplate, and forming inwardly extending notches at selected locations along lengthwise edges of the baseplate. The baseplate is bent at the notches to form a front wall, a pair of sidewalls and tabs that overlap the sidewalls. The baseplate is then bent over on itself along the major bend axes and sealed, if necessary, to form a completed assembly.
摘要:
Methods and apparatus for an electronic device such as a field effect transistor. One embodiment includes fabrication of an FET utilizing single walled carbon nanotubes as the semiconducting material. In one embodiment, the FETs are vertical arrangements of SWCNTs, and in some embodiments prepared within porous anodic alumina (PAA). Various embodiments pertain to different methods for fabricating the drains, sources, and gates.
摘要:
A method of forming a well-anchored carbon nanotube (CNT) array, as well as thermal interfaces that make use of CNT arrays to provide very high thermal contact conductance. A thermal interface is formed between two bodies by depositing a continuous array of carbon nanotubes on a first of the bodies so that, on mating the bodies, the continuous array is between surface portions of the first and second bodies. The thermal interface preferably includes a multilayer anchoring structure that promotes anchoring of the continuous array of carbon nanotubes to the first body. The anchoring structure includes a titanium bond layer contacting the surface portion of the first body, and an outermost layer with nickel or iron catalytic particles from which the continuous array of carbon nanotubes are nucleated and grown. Additional thermal interface materials (TIM's) can be used in combination with the continuous array of carbon nanotubes.
摘要:
Methods and apparatus for an electronic device such as a field effect transistor. One embodiment includes fabrication of an FET utilizing single walled carbon nanotubes as the semiconducting material. In one embodiment, the FETs are vertical arrangements of SWCNTs, and in some embodiments prepared within porous anodic alumina (PAA). Various embodiments pertain to different methods for fabricating the drains, sources, and gates.
摘要:
Networks of single-walled carbon nanotubes (SWCNTs) decorated with Au-coated Pd (Au/Pd) nanocubes are employed as electrochemical biosensors that exhibit excellent sensitivity (2.6 mA mM−1 cm−2) and a low estimated detection limit (2.3 nM) at a signal-to-noise ratio of 3 (S/N=3) in the amperometric sensing of hydrogen peroxide. Biofunctionalization of the Au/Pd nanocube-SWCNT biosensor is demonstrated with the selective immobilization of fluorescently labeled streptavidin on the nanocube surfaces via thiol linking. Similarly, glucose oxidase (GOx) is linked to the surface of the nanocubes for amperometric glucose sensing. The exhibited glucose detection limit of 1.3_M (S/N=3) and linear range spanning from 10 μM to 50 mM substantially surpass other CNT-based biosensors. These results, combined with the structure's compatibility with a wide range of biofunctionalization procedures, would make the nanocube-SWCNT biosensor exceptionally useful for glucose detection in diabetic patients and well suited for a wide range of amperometric detection schemes for biomarkers.
摘要翻译:用Au涂覆的Pd(Au / Pd)纳米管装饰的单壁碳纳米管(SWCNT)的网络被用作显示出优异的灵敏度(2.6mAm-1cm-2)和低估计检测限(2.3nM)的电化学生物传感器 )在过氧化氢的电流检测中的信噪比为3(S / N = 3)。 Au / Pd纳米管SWCNT生物传感器的生物功能化通过硫醇连接在荧光标记的链霉抗生物素蛋白选择性固定在纳米管表面上得到证明。 类似地,葡萄糖氧化酶(GOx)连接到纳米管的表面用于电流葡萄糖感测。 显示的葡萄糖检测限为1.3_M(S / N = 3)和跨越10μM至50 mM的线性范围基本上超过其他基于CNT的生物传感器。 这些结果结合结构与广泛的生物功能化程序的相容性将使得纳米管SWCNT生物传感器在糖尿病患者中非常适用于葡萄糖检测,非常适用于生物标志物的广泛电流检测方案。
摘要:
Heat transfer devices and systems are provided for the rapid cooling of pulsed high-powered, high-flux devices using flash boiling. Such devices comprise at least two fluidly connected chambers and a heat exchanger in thermal communication with a heat source. A flash boiling event is actively triggered at a location close to the heat source by rapid depressurization of the chamber containing a multi-phase coolant. This boiling process allows for high heat transfer rates from the heat source into the chambers due to the latent heat of vaporization, which results in the rapid cooling of the heat source. A porous medium may also be positioned within a chamber of the device to enhance boiling nucleation and extended surface heat transfer. Methods of rapidly cooling pulsed heat sources are also provided using the devices and systems hereof.
摘要:
Networks of single-walled carbon nanotubes (SWCNTs) decorated with Au-coated Pd (Au/Pd) nanocubes are employed as electrochemical biosensors that exhibit excellent sensitivity (2.6 mA mM−1 cm−2) and a low estimated detection limit (2.3 nM) at a signal-to-noise ratio of 3 (S/N=3) in the amperometric sensing of hydrogen peroxide. Biofunctionalization of the Au/Pd nanocube-SWCNT biosensor is demonstrated with the selective immobilization of fluorescently labeled streptavidin on the nanocube surfaces via thiol linking. Similarly, glucose oxidase (GOx) is linked to the surface of the nanocubes for amperometric glucose sensing. The exhibited glucose detection limit of 1.3_M (S/N=3) and linear range spanning from 10 μM to 50 mM substantially surpass other CNT-based biosensors. These results, combined with the structure's compatibility with a wide range of biofunctionalization procedures, would make the nanocube-SWCNT biosensor exceptionally useful for glucose detection in diabetic patients and well suited for a wide range of amperometric detection schemes for biomarkers.
摘要翻译:用Au涂覆的Pd(Au / Pd)纳米管装饰的单壁碳纳米管(SWCNT)的网络被用作显示出优异的灵敏度(2.6mAm-1cm-2)和低估计检测限(2.3nM)的电化学生物传感器 )在过氧化氢的电流检测中的信噪比为3(S / N = 3)。 Au / Pd纳米管SWCNT生物传感器的生物功能化通过硫醇连接在荧光标记的链霉抗生物素蛋白选择性固定在纳米管表面上得到证明。 类似地,葡萄糖氧化酶(GOx)连接到纳米管的表面用于电流葡萄糖感测。 显示的葡萄糖检测限为1.3_M(S / N = 3)和跨越10μM至50 mM的线性范围基本上超过其他基于CNT的生物传感器。 这些结果结合结构与广泛的生物功能化程序的相容性将使得纳米管SWCNT生物传感器在糖尿病患者中非常适用于葡萄糖检测,非常适用于生物标志物的广泛电流检测方案。