Hybrid Microfluidic Cmos Capacitive Sensors For Lab On Chip Applications

Hybrid Microfluidic CMOS Capacitive Sensors for Lab-on-chip Applications

CMOS Capacitive Sensors for Lab-on-Chip Applications

1.1 Overview of Lab-on-Chip Laboratory-on-Chip (LoC) is a multidisciplinary approach used for the miniaturization, integration and automation of biological assays or procedures in analytical chemistry [1–3]. Biology and chemistry are experimental sciences that are continuing to evolve and develop new protocols. Each protocol offers step-by-step laboratory instructions, lists of the necessary equipments and required biological and/or chemical substances [4–7]. A biological or chemical laboratory contains various pieces of equipment used for performing such protocols and, as shown in Fig. 1.1, the engineering aspect of LoC design is aiming to embed all these components in a single chip for single-purpose applications. 1.1.1 Main Objectives of LoC Systems Several clear advantages of this technology over conventional approaches, including portability, full automation, ease of operation, low sample consumption and fast assays time, make LoC suitable for many applications including. 1.1.1.1 Highly Throughput Screening To conduct an experiment, a researcher fills a well with the required biological or chemical analytes and keeps the sample in an incubator for some time to allowing the sample to react properly. Afterwards, any changes can be observed using a microscope. In order to quickly conduct millions of biochemical or pharmacolo- cal tests, the researchers will require an automated highly throughput screening (HTS) [8], comprised of a large array of wells, liquid handling devices (e.g., mic- channel, micropump and microvalves [9–11]), a fully controllable incubator and an integrated sensor array, along with the appropriate readout system.

Microfluidic Biosensors

Microfluidic Biosensors provides a comprehensive overview covering the most recent emerging technologies on the design, fabrication, and integration of microfluidics with transducers. These form various integrated microfluidic biosensors with device configurations ranging from 2D to 4D levels. Coverage also includes advanced printed microfluidic biosensors, flexible microfluidics for wearable biosensors, autonomous lab-on-a-chip biosensors, CMOS-base microanalysis systems, and microfluidic devices for mobile phone biosensing. The editors and contributors of this book represent both academia and industry, come from a varied range of backgrounds, and offer a global perspective. This book discusses the design and principle of microfluidic systems and uses them for biosensing applications. The microfluidic fabrication technologies covered in this book provide an up-to-date view, allowing the community to think of new ways to overcome challenges faced in this field. The focus is on existing and emerging technologies not currently being analyzed extensively elsewhere, providing a unique perspective and much-needed content. The editors have crafted this book to be accessible to all levels of academics from graduate students, researchers, and professors working in the fields of biosensors, microfluidics design, material science, analytical chemistry, biomedical devices, and biomedical engineering. It can also be useful for industry professionals working for microfluidic device manufacturers, or in the industry of biosensors and biomedical devices. - Presents an in-depth overview of microfluidic biosensors and associated emerging technologies such as printed microfluidics and novel transducers - Addresses a range of microfluidic biosensors with device configurations ranging from 2D to 4D levels - Includes the commercialization aspects of microfluidic biosensors that provide insights for scientists and engineers in research and development