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Spring 2015

Shen, Yi

Fluorescent proteins (FP) and FP-based biosensors have become essential tools for cell biology and neuroscience research. This thesis describes efforts to engineer new FPs with red emission and novel genetically encoded biosensors based on red FPs. Directed evolution and semi-rational design are...

Fall 2015

Lai, Yan Tiffany

The expansion of the fluorescent protein (FP) colour palette through discovery of more species possessing FPs and by subjecting them to intensive protein engineering efforts has greatly aided the effectiveness of FP-based biosensor designs. Currently, the main FP-based methods for detecting...

2014

Jacob, Z., Guo, Y.

Fall 2009

Ko, Wooree

Nanomechanical resonators offer a pathway towards highly sensitive and label-free detection of biomolecules by transducing the mass of bound analytes into resonant frequency shifts. Zeptogram level and even single cell detections have been successfully achieved by others. However, these...

Fall 2016

Salmani-Rezaie, Salva

The field of conducting polymers and mainly organic electrochemical transistors (OECT) have been investigated for bioelectronics applications. Advantages such as conformability, high quality electrical contact, ease of fabrication and biocompatibility made OECTs a great potential of future bio...

Fall 2009

Khosathit, Padet

Microcantilever sensor has gained much popularity because of its high sensitivity and selectivity. It consists of a micro-sized cantilever that is usually coated on one side with chemical/biological probe agents to generate strong attraction to target molecules. The interactions between the probe...

2011

Szymanski, Christine M., Arutyunov, Denis, McDermott, Mark T., Evoy, Stephane, Singh, Amit

Campylobacter jejuni is found in the intestines of poultry, cattle, swine, wild birds and pet animals and is the major cause of foodborne gastroenteritis in developed countries. We report the use of the receptor binding protein (RBP) of Campylobacter bacteriophage NCTC 12673 for the specific...

Fall 2009

Glass, Nicholas

Resonant microcantilevers are promising transducers for bacteria detection because of their high sensitivities. Surface stress and mass from adsorbates affect the resonant frequency. We developed a novel method for decoupling the frequency contributions of a change in mass and surface stress on a...

Fall 2018

Anbukarasu, Preetam

Enzyme-responsive degradable polymers are of great interest both from fundamental science and real-world application perspectives. Enzyme-responsive polymers, because of their ability to interface with and sense biological processes, can have many applications in systems that operate at the edge...

Fall 2014

Assempour, Nazanin

Optical imaging of membrane potentials has become an immensely popular approach to study neuronal activity. Over the past decades, a number of voltage indicators have been introduced including the voltage sensitive fluorescent protein (VSFP) and microbial rhodopsins. However, most of these...