Sökning: "bioassays"

Visar resultat 16 - 20 av 52 avhandlingar innehållade ordet bioassays.

1. 16. Cell and Particle Trapping in Microfluidic Systems Using Ultrasonic Standing Waves

   Författare :Mikael Evander; Avdelningen för Biomedicinsk teknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; acoustic particle manipulation; standing waves; trapping; ultrasound; cell handling; particle handling; Microsystem technology; lab on a chip; microfluidics;

   Sammanfattning : Analysis methods are currently being miniaturized in order to save time and money while achieving higher sensitivities. The ultimate goal is to create a lab-on-a-chip where all analysis steps and instruments can be automated and integrated into a single chip. LÄS MER

3. 17. Pesticide impact of intensive banana production on aquatic ecosystems in Costa Rica

   Författare :Luisa Eugenia Castillo; Donald J Baird; Stockholms universitet; []
   Nyckelord :Marine Ecotoxicology; marin ekotoxikologi;

   Sammanfattning : A combination of chemical and biological studies demonstrated extensive surface water contamination, the occurrence of pesticides in sediments, especially near the banana plantation areas, and biological impacts. Pesticides were even found in the downstream waters of the Tortuguero conservation area, a highly diverse wetland that protects several endangered species. LÄS MER

4. 18. Change of toxicity during secondary treatment of industrial sludge containing nitroaromatics

   Författare :Lillemor Gustavsson; Magnus Engwall; Anna Schnürer; Ulrika Welander; Mårten Jönsson; Bo Mattiasson; Göran Dave; Örebro universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Anaerobic; aerobic; AhR agonists; CALUX; constructed wetlands; Danio rerio; embryotoxicity; genotoxicity; nitroaromatics; sludge; Environmental engineering; Miljöteknik; Enviromental Science; Miljövetenskap;

   Sammanfattning : Wastewater treatment plants in Sweden are facing a great challenge due to the prohibition of depositing organic waste which gained legal force in January 2005. Biological and commercial available alternatives to disposal are composting and anaerobic digestion. LÄS MER

5. 19. Development of Protein Microarray Chip Technology: An Outlook towards Proteomics and Diagnostics

   Författare :Anton Ressine; Avdelningen för Biomedicinsk teknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; materialteknik; Materiallära; Material technology; Teknik; Technological sciences; Naturvetenskap; Natural science; Diagnostik; Diagnostics; Medicin människa och djur ; Medicine human and vertebrates ; Biomedicinska vetenskaper; Biomedical sciences; water repellency; superhydrophobicity; proteolitic digestion; MALDI-TOF MS; bioassay; porous silicon; biomarker; diagnostics; protein microarrays; proteomics;

   Sammanfattning : One attractive method for monitoring biomolecular interactions in a highly parallel fashion is the use of microarrays. Microarrays can be applied for screening proteins which makes it an attractive tool in clinical diagnostics, drug discovery studies and basic protein research; even though many methodological challenges and ones relating to the quality control of microarrays still need to be solved. LÄS MER

7. 20. Characterization of PAH-contaminated soils focusing on availability, chemical composition and biological effects

   Författare :Magnus Bergknut; Mats Tysklind; Dag Broman; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polycyclic aromatic hydrocarbons; PAHs; availability; bioavailability; chemical analysis; characterization; GC-TOFMS; bioassay; toxicity; biological testing; multivariate methods; PCA; PLS; Environmental chemistry; Miljökemi;

   Sammanfattning : The risks associated with a soil contaminated by polycyclic aromatic hydrocarbons (PAHs) are generally assessed by measuring individual PAHs in the soil and correlating the obtained amounts to known adverse biological effects of the PAHs. The validity of such a risk estimation is dependent on the presence of additional compounds, the availability of the compounds (including the PAHs), and the methods used to correlate the measured chemical data and biological effects. LÄS MER