Biosensors Based On Aptamers And Enzymes

Volumes are organized topically and provide a comprehensive discussion of developments in the respective field over the past 3-5 years. The series also discusses new discoveries and applications. Special volumes are dedicated to selected topics which focus on new biotechnological products and new processes for their synthesis and purification. In general, special volumes are edited by well-known guest editors. The series editor and publisher will however always be pleased to receive suggestions and supplementary information. Manuscripts are accepted in English.

Today, biosensors are broadly applied in research, clinical diagnosis and monitoring, as well as in pharmaceutical, environmental or food analysis. In this work, the author presents the essentials that advanced students and researchers need to know in order to make full use of this technology. This includes a description of biochemical recognition elements, such as enzymes, antibodies, aptamers or even whole cells. Various signal transducers such as electrochemical and optical transducers, luminescence devices and advanced techniques such as quartz crystal microbalances and MEMS systems are covered as well. Current applications are introduced through various case studies, rounded out by a forward-looking chapter on the prospects for biosensor development offered by nanotechnology, lab-on-a-chip, and biomimetic systems.

This book shows the various sandwich assays that are constructed from recognition molecules, such as antibodies, oligonucleotide sequences and aptamers, developed as a result of nano- and biotechnology advances. It consists of ten chapters presenting interesting examples of these assays, organized according to the type of analytic methods (colorimetric, fluorescence, electrochemical, etc.) and detected objects (protein, nucleic acid, small-molecule, ion, etc.). It also includes a chapter discussing the introduction of sandwich assays as biosensors for the detection of a range of targets. It is an interesting and useful resource for a wide readership in various fields of chemical science and nanotechnology.

A biosensor is defined as a detecting device that combines a transducer with a biologically sensitive and selective component. When a specific target molecule interacts with the biological component, a signal is produced, at transducer level, proportional to the concentration of the substance. Therefore biosensors can measure compounds present in the environment, chemical processes, food and human body at low cost if compared with traditional analytical techniques. Bringing together researchers from 11 different countries, this book covers a wide range of aspects and issues related to biosensor technology, such as biosensor applications in the fields of drug discovery, diagnostics and bacteria detection, optical biosensors, biotelemetry and algorithms applied to biosensing.

Electrochemical Biosensors summarizes fundamentals and trends in electrochemical biosensing. It introduces readers to the principles of transducing biological information to measurable electrical signals to identify and quantify organic and inorganic substances in samples. The complexity of devices related to biological matrices makes this challenging, but this measurement and analysis are critically valuable in biotechnology and medicine. Electrochemical biosensors combine the sensitivity of electroanalytical methods with the inherent bioselectivity of the biological component. Some of these sensor devices have reached the commercial stage and are routinely used in clinical, environmental, industrial and agricultural applications. Describes several electrochemical methods used as detection techniques with biosensors Discusses different modifiers, including nanomaterials, for preparing suitable pathways for immobilizing biomaterials at the sensor Explains various types of signal monitoring, along with several recognition systems, including antibodies/antigens, DNA-based biosensors, aptamers (protein-based), and more

In The Aptamer Handbook, leading scientists from academia as well as biotech and pharma companies introduce the revolutionary concept of designing RNA and DNA oligonucleotides with novel functions by in vitro selection. These functions comprise high affinity binding (aptamers), catalytic activity (ribozymes and deoxyribozymes) or combinations of binding and catalytic properties (aptazymes). Basic concepts and technologies describing in detail how these functional oligonucleotides can be identified are presented. Numerous examples demonstrate the versatility of in vitro selected oligonucleotides. Special emphasis has been put on a section that shows the broad applicability of aptamers, e. g. in target validation, for analytics, or as new therapeutics. This first overview in the field is of prime interest for a broad audience of scientists both in academia and in industry who wish to expand their knowledge on the potential of new oligonucleotide functions and their applications.

Improving and Tailoring Enzymes for Food Quality and Functionality, Second Edition covers the most relevant information demanded in the production, engineering, and application of enzymes. The title is very detailed and is in the important cross-field of academia and industry. This totally revised new edition covers a broad range of topics related to enzymes and their use in food, presenting both the fundamental theory and practical application, updated with interesting novel information on biosensors, waste, valorization, up-cycling and engineering perspectives, besides an increased focus on sustainability. Thoroughly updated revision covering a broad range of topics related to enzymes and their use in the food industry Presents both the fundamental theory and recent examples from the literature, including the fundamentals of protein folding and enzyme catalysis, the preparation of enzymes from natural and recombinant sources, immobilizing enzymes, and a range of specific food applications Covers new research directions in enzymes, thus helping those trying to solve a technical issue or develop a new product

The design and fabrication of aptamer-based biosensors for point-of-care testing of disease diagnostic and prognostic is an upthrust and interdisciplinary area of research. This book covers the design and development of novel cost-effective aptamer-based biosensors for disease diagnostic and prognostic including an understanding of health care management in terms of timely updates of disease situations in a particular geographical area. It also discusses the scaling up and market trend of aptamer-based devices for extension of research from lab to market, and end users. Features: Explains the design and fabrication of aptasensors-based diagnostic devices. Includes novel approaches and comprehensive technology overview for diagnosis management towards early-stage detection of various biomarkers associated with several health conditions. Demonstrates possible benefits of combined diagnostics and therapeutic possibilities using aptamer-based point-of-care technologies devices. Discusses emerging implications and recent advances of biosensing platforms for designing and developing aptamer-based point-of-care testing (POCT) devices. Explores aptamer-based approach to develop advanced platforms for medical applications and open arena for state-of-the-art future research. This book is aimed at researchers and graduate students in biomedical engineering, diagnostics, nanobiotechnology, and materials science.