In this work, we investigate sensor design approaches for eliminating the effects of parasitic resistance in nanowire and nanoribbon biosensors. Measurements of pH with polysilicon nanoribbon biosensors are used to demonstrate a reduction in sensitivity as the sensor length is reduced. The sensitivity (normalised conductance change) is reduced from 11% to 5.5% for a pH change from 9 to 3 as the...

background: among the most important parasitic disease, causing diarrhea, gi­ardia lamblia is noteworthy. nowadays detection methods for these parasites in­clude parasitological methods such as microscopic examination. the sensitivity of these methods relies on the expertise and experience of examiners. in contrast, molecular methods such as pcr are less dependent on the expertise of the exam­i...

This paper presents a novel parasitic-insensitive switched-capacitor (PISC) sensing circuit design in order to obtain high sensitivity and ultra linearity and reduce the parasitic effect for the out-of-plane single-gimbaled decoupled CMOS-MEMS gyroscope (SGDG). According to the simulation results, the proposed PISC circuit has better sensitivity and high linearity in a wide dynamic range. Exper...

We demonstrate the operation of a radio-frequency single-electron transistor (RF-SET) using single-wall carbon nanotubes (SWNTs). The device is embedded in a resonant tank circuit and operates in reflection mode at temperatures as high as 5 K. Both frequency domain and time domain results are presented. With a gate modulation frequency of 1 MHz, a charge sensitivity of ∼4.78 × 10−4e/Hz−1/2 is o...

We demonstrate how simultaneously operated 39K–87Rb interferometers exhibiting a high level of correlation can be used to make competitive tests the university free fall. This work provides an overview our experimental apparatus and data analysis procedure, including detailed study systematic effects. With total interrogation time 2T=40 ms in compact apparatus, we reach statistical uncertainty ...

Enterococcus is the second cause of urinary tract infections in hospitals and the third most common cause of nosocomial bacteremia. Overuse of antibiotics for the treatment of nosocomial infections, causes antibiotic resistance in enterococci resistant to antibiotics through their ability to acquire resistance to antibiotics through mutation or acquisition of genetic material carrying a resista...

BACKGROUND Visceral Leishmaniasis (VL), a severe parasitic disease, could be fatal if diagnosis and treatment is delayed. Post kala-azar dermal leishmaniasis (PKDL), a skin related outcome, is a potential reservoir for the spread of VL. Diagnostic tests available for VL such as tissue aspiration are invasive and painful although they are capable of evaluating the treatment response. Serological...

background: the association between helminthic parasitic infection and cognitive function has long been recognized, however there are few reports about giardia lamblia infection. this paper describes a study about the effect of g. lamblia infection on the cognitive function. methods: one hundred thirty two children infected with g. lamblia from robat karim south of western tehran, iran were com...