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Dopamine is a neurotransmitter that plays a key role in neural disorders. This paper reports on the design and fabrication of a microelectrode array (MEA) modified with multi-walled carbon nanotubes (MWCNTs) to detect dopamine with high sensitivity. The modification is based on covalent bonding of carboxylic groups in carbon nanotubes (CNTs) and amine groups in poly-l-lysin (PLL). The modified microelectrode...
A fully CMOS integrated carbon nanotube (CNT) sensor array platform that consists of an 8×8 array of unitary CNT elements has been designed and fabricated. For digital conversion of the analog voltage of CNT sensor elements, a correlated double sampling (CDS) type Successive Approximation Register (SAR) Analog/Digital converter has been used. The chip has been applied to sense the DNA hybridization...
A series of finite element thermoelectric coupling simulations on the Ti/Pt/Cr/Au thin film microheater array were conducted. The infrared image of the fabricated microheater device confirmed the simulation results. Based on these simulations, a microheater array was fabricated on Si/SiO2 substrate, and carbon nanotube bundles were grown locally at a temperature of above 650??C while the temperatures...
In this paper, a high sensitivity carbon nanotubes (CNTs) enhanced piezoelectric diaphragm-based immunosensor array for detecting anti-goat IgGs is reported. Anti-goat IgGs with 6 different concentrations was successfully detected at the same time. The average diameter of CNTs was characterized by AFM, changing from original 58 nm to 82 nm after absorbing goat IgGs. A nearly linear relationship between...
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