Sökning: "Biosensing Techniques"

Visar resultat 1 - 5 av 32 avhandlingar innehållade orden Biosensing Techniques.

1. 1. Miniaturized localized surface plasmon resonance biosensors

   Författare :Si Chen; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; colloidal lithography; Surface plasmon resonance; biosensing; electron beam lithography; single molecule; hyperspectral imaging; photo functionalization;

   Sammanfattning : Abstract Reliable and sensitive biosensors are required for fast and accurate diagnostics. Localized surface plasmon resonances (LSPRs) in noble-metal nanoparticles possess very high refractive index sensitivity close to the metal surface and therefore constitute an attractive biosensing platform. LÄS MER

3. 2. Nanoplasmonic sensing: from biology to catalysis

   Författare :Elin Maria Kristina Larsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hole-mask colloidal lithography; colloidal lithography; nanoring; QCM-D.; quartz crystal microbalance; nanodisk; catalysis; LSPR; Localized Surface Plasmon Resonance; biosensing;

   Sammanfattning : Our continuously increasing concerns about our health, safety, environment and climate has brought about a need for more sophisticated sensors that enable reliable detection of a variety of events. Sensors are today omnipresent in daily life. LÄS MER

4. 3. Tinkering with Light at the Nanoscale using Plasmonic Metasurfaces and Antennas: From Fano to Function

   Författare :Mikael Svedendahl; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biosensing; Fano resonances; metamaterials; Surface plasmons;

   Sammanfattning : Surface plasmons are charge density oscillations that can couple strongly to light and be excited in, for instance, thin metal films and metal nanoparticles. The plasmonic excitation squeezes the light down to nanometric length scales, far smaller than the wavelength of the light. LÄS MER

5. 4. Tethered Lipid Vesicles as Nanoscale Sensor Elements

   Författare :Seyed Tabaei; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aquaglyceroporin; lipid vesicles; total internal reflection fluorescence TIRF microscopy; cell membrane; aquaporin; pore formation; surface plasmon resonance SPR ; phospholipase A2; antiviral peptide; lipid bilayer; biosensing; microfluidics;

   Sammanfattning : The primary aim of this thesis work has been to explore and advance the potential of surface tethered lipid vesicles as a platform for studying in particular the following three biomembrane-related processes: trans-membrane transport, membrane-peptide interactions and the activity of membrane active enzymes. First, a method based on surface plasmon resonance (SPR) spectroscopy was developed for studying passive diffusion processes as well as the membrane-protein mediated transport of small non electrolyte molecules across lipid bilayers. LÄS MER

7. 5. QCM-D based biosensing – exploring the possibilities

   Författare :Erik Nilebäck; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cell morphology; drug discovery; plasminogen; protein conformation; viscoelastisicity; QCM-D; oligo ethylene glycol ; Quartz crystal microbalance with dissipation monitoring; streptavidin;

   Sammanfattning : We are constantly increasing our understanding of all biological systems and how these highly complex systems interact with each other. The high degree of complexity of these systems can be investigated in greater and greater detail by increasingly sophisticated sensing techniques. LÄS MER