Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"Bacteria detection"”.
-
Development of portable escherichia coli bacteria detection using resistive graphene-based immunosensor
Escherichia coli (E. coli) bacteria comes from the human and animal faeces. It is hazardous to human health and could cause death when not immediately treated. Therefore, it is crucial to detect E. coli bacteria in water before consuming it. Since many cases of water contaminated E. coli bacteria …
-
Nachweis von parodontopathogenen Bakterien mit Hilfe von Genchips
The focus of this dissertation is the detection of periodontal pathogens by Genechips. The experiments were done with the ParoCheck® Kit 20. It is the first commercial, semi-quantitative DNA-Chip for the detection of periodontitis associated bacteria. The following bacteria can be detected by the …
-
Density-shift Immunomagnetic Separation for Pathogen Retrieval from Complex Media
In industries like food production, pathogenic bacteria detection is required for producers to confidently send products to market without the risk of costly product recalls. However, rapid, reliable detection remains an unmet need. Conventional methods for detecting bacteria rely on time-consuming …
-
Development of novel metal nanoparticle based methods for detection of bacteria using surface-enhanced Raman spectroscopy
… Raman Spectroscopy (SERS) for the rapid detection of live bacteria by analysis of the headspace above bacterial cultures. It is knownt hat in-situ SERS can be used to detect vapour phase dimethyl disulphide (DMDS), which is a metabolic product of live bacteria. The test experiments in …
-
Advanced Raman spectroscopy for bioprocess monitoring
… to find solutions for increasing the limit of detection (LOD) for biomolecules, being capable to detect them during the course of the process reliably and being able to diminishing background signals induced by sample- and matrix-related auto-fluorescence. The proposed solutions are mainly …
-
Molecular Engineering Approaches against Germs, Spores and Biofilm Formation
Bacterial surface adhesion, colonization and related infections have been major issues plaguing many industrial and biomedical applications. In fact, the very subject has posed engineering challenges and incented scientific questioning for as long as the history of modern day microbiology and …
-
Microfabricated Surfaces and Particles for Advanced Immunoassay Platforms and High-Efficiency Electrowetting Heat Transfer System
… labels in order to be used for the multiplexed detection of a subset of diseases. For this device, a sample is loaded into a reservoir that is connected to a prefilled, dead-end channel where antibodies to a pathogen panel have been spotted on the channel base. The reservoir is one of many that …
-
IMMOBILIZATION AND CHARACTERIZATION OF FLEXIBLE DNAzyme-BASED BIOSENSORS FOR ON-THE SHELF FOOD MONITORING
… generate the signal upon contact with the target bacteria with as low as 103 CFU/mL of Escherichia coli in meat and apple juice. The fabricated sensing surfaces remained stable up to several days under varying pH conditions (pH 5 to 9). In addition to detecting pathogens on packaged food or …
-
Sensitive Detection of Foodborne E. coli O157:H7 by Dendrimer-aptamer Modified Microchannels - with RCA Signal Intensifications
Foodborne pathogenic bacterial infection is one of the main causes for food poisoning cases. Therefore there is an urgent need for rapid, sensitive and cost-effective detection methods in order to avoid or to respond to outbreaks of such diseases in a timely manner. To this end, a dendrimer-aptamer …