Each block is described in more detail in the following sections. A Graphical User Interface (GUI) was developed by using the programming language C#. T biomarkers (cTnT) through antibody-functionalized nanowire FETs. There is a growing demand for sensor products offering quick and portable analytical features in real time as well as massively parallel capabilities with very high sensitivity down to the single-molecule level. Such products are essential to facilitate study and foster improvements in fields, such as drug finding, proteomics, medical diagnostics, systems biology, or environmental monitoring. The development of reliable and flexible sensor systems at sensible cost, with adequate selectivity and level of sensitivity, is definitely a challenging task.1 Methods requiring biochemical labeling or amplification of the prospective analyte are costly and time-consuming. They additionally carry the risk of altering the prospective analyte molecules, and therefore influencing the detection process, which is an important issue, for instance, in gene manifestation assessment via DNA microarrays.2 Label-free techniques are, therefore, preferable. Methods including optical detection, such as surface plasmon resonance, have demonstrated their effectiveness in affinity detectors.3,4 Optical techniques, however, remain difficult to integrate at large scale, as required for the production of low-cost, portable sensing products, for applications in, e.g., customized medicine or wise wearable systems for life-quality improvement. Nanoscale electronic transducers based on ion-sensitive Vanoxerine field-effect transistors (ISFETs) that can be integrated inside a CMOS platform have emerged as promising products. ISFETs were launched in the 1970s, with the perspective of directly integrating chemical sensing into electronic devices.5 In an ISFET, the metallic gate electrode is definitely replaced by an analyte solution whose Vanoxerine potential Vanoxerine is definitely controlled by a research electrode, e.g., Ag/AgCl. Charge service providers or ions in the liquid phase atop the gate lead to an electrostatic potential buildup. This potential depends on the nature and concentrations of the charged varieties, adsorbed within the oxide surface of the FET, and modifies the gate voltage or threshold voltage. 6 The device architecture of ISFETs was later on also used for nanowire-based FET products.7 The high desire for nanowire-based ISFETs is driven by multiple arguments. Most obvious is the small dimensions of the nanowire and the size compatibility between the sensor unit and some of the sensed analytes. This element is crucial, for instance, in the study of biophysical mechanisms in the solitary molecule or solitary organelle level.8 Another aspect is the high surface-to-volume ratio, which enhances ITGB2 the sensitivity of the sensor,9 allowing for the detection of low analyte concentrations (down to the attomolar range),10C12 or of a small number of biomolecules such as proteins.13 The small size of the sensing unit results in small capacitances and, therefore, a fast response time. Not only does this small size permit local measurements with high spatial resolution, but it also allows for the integration of the detectors into large-scale arrays. Finally, detection systems with high level of sensitivity (in terms of, e.g., minimum amount detectable relative resistance switch or threshold voltage shift) need real-time signal-conditioning circuits to improve the signal-to-noise percentage. The use of CMOS technology to design circuits that can interface to nanowire-based detectors is an obvious choice, as it brings several advantages: (1) The integration of several circuits on the same chip, which enables the simultaneous readout of different nanowires with low noise and high temporal resolution; (2) the capability of simultaneously reading out an array of detectors, offering the possibility to correlate measurements in time and space for identical detectors13 and to conduct multiple measurements by means of arrays with in a different way functionalized detectors; the latter approach is definitely important to make sure, e.g., reliable disease marker detection or disease analysis, which often requires the recognition of multiple molecular markers.14 (3) The performance of the nanowire detectors can be improved by alleviating some nonidealities of the detectors, e.g., hysteresis.15 Ideally, the nanowire sensor and the readout circuit should be monolithically integrated on the same substrate, as this allows the sensor signal.