Alison Smith

RNA interference (RNAi) is a rapidly expanding field of research that promises to yield a better understanding of how cells regulate their environments through RNAi mediated gene silencing pathways. Harnessing RNAis transformative properties may prove to be a powerful methodology for developing effective, cell-specific drugs, thus reducing harm and unwanted side effects. Alison’s project involves reconstituting the piRNA biogenesis machinery in vitro; specifically, elucidating the role of the protein, Squash. piRNAs are a recently discovered class of small regulatory RNAs that are thought to facilitate transposon silencing through RNAi, thereby […]

Jason Ross

Jason’s research group has recently developed the nanocalorimeter, a membrane-based calorimeter which has ten times less addenda heat capacity than any known calorimeter, allowing for the first accurate measurements of nanogram sized samples. With this, Jason proposes to measure the specific heat of silicon nanowires in response to recent thermal transport studies. These studies have found that the thermal conductivity of silicon nanowires decreases with decreasing nanowire diameter. Such a characteristic means silicon nanowires have a big future in clean energy thermoelectric devices. But before we can properly exploit them […]

Mio Kitayama

Rapid land use transformation worldwide in recent years raises a demand for models that simulate the impacts of different land use policies on the local ecosystems and its services for human well-being. Mio will join a team in Brazil and devise a mathematical model that estimates the impacts of local land use choices on the carbon sequestration abilities of Atlantic Forest. She will integrate the devised model into Multiscale, Integrated Models of Ecosystem Services (MIMES), which collaboratively simulates the impacts of different land use policies on ecosystem services provided by […]

Susan Chen

Metabolic engineering has the potential to provide environmentally friendly routes for the synthesis of a variety of molecules, including therapeutics and biofuels. One way to improve the flux of metabolic pathways is the use of synthetic protein scaffolds that colocalize enzymes in the engineered mevalonate biosynthesis pathway. Susan’s project tests the hypothesis that optimal scaffolds of certain architectures mimic substrate channeling and function by forming large, oligomeric complexes that bring scaffolds into close proximity. Adaptor molecules are synthesized that co-assemble scaffolds to designably control complex size. Mevalonate product titers will […]

Elton Chan

The bacterium Salmonella is a significant cause of food-borne disease. Its pathogenesis depends on the type III secretion systems (T3SSs) that were acquired by horizontal gene transfer; the invasion of Salmonella into the host cells requires appropriate expression of T3SSs. Recent research has identified small non-coding RNAs (sRNAs) as a class of regulators that fine tune gene expression required for bacterial physiology and pathogenesis. Elton will investigate the specific interaction between one of these newly discovered Salmonella sRNA and its predicted candidate targets; he will characterize the interaction between IsrM […]

Denisse Rojas

Transposable elements (TEs) are movable pieces of DNA that can have detrimental effects in the plant genome. When TEs are expressed, they can disrupt normal gene function. Small RNAs (siRNAs) direct DNA methylation, which signals other proteins to prevent TE expression. Previous studies show that methylation patterns in the endosperm affect silencing of TEs in the embryo, and propose that siRNAs from the central cell, a female supporting germ cell, mediate TE silencing in the egg cell. Denisse will test the idea that siRNAs move from the central cell to […]

Navpreet Ranu

Tuberculosis (TB) is an infectious disease that often attacks the lungs and can be spread through the air by coughing, sneezing, and other airborne means. Approximately 2 billion people are infected with TB and around 1.6 million people die of this disease every year. Navpreet will develop a point of care (POC) diagnostic device that will be able to quantify specific TB biomarker levels in serum using electrical impedance spectroscopy. His project tests the hypothesis that the limit of detection can be improved by creating a 3D gel sensor as […]

Shahram Misaghi

The goal of Shahram’s Senior Honors Thesis in Molecular and Cell Biology is to obtain a detailed picture of the structure of a novel protein, called Acr A, that has recently been discovered to play an essential role in bacterial resistance to certain antibiotics. Using the technique of protein crystallography, Shahram plans to purify large amounts of Acr A protein from bacteria, crystallize the protein, and then study the chemical structure of this protein. His intention is to identify potential weak points that can be attacked by additional drugs, disabling […]

Michael Yuehhsun Lee

Michael will investigate the catalytic activity of enzymes solubilized in organic solvents using a technique called surfactant-assisted hydrophobic ion pairing. By furthering our understanding of the factors that effect enzyme function in non-aqueous media, Michael’s research will enable him to design a system whereby enzyme activity in such media is optimized. The results with have important practical applications in this novel branch of biotechnology. Michael plans to present his research at the National Meeting of the American Institute of Chemical Engineers next year.

Nasim Sadeghian

Two fundamental questions in both plant and animal development are how patterns are formed and how cell fates are determined. The maize leaf provides an elegant model for examining these questions because its development is well characterized and its use as a genetic system is well established. Nasim will investigate the role of the gene eta1 (extended auricle1) in maize leaf development. The project entails a two-pronged approach to cloning eta1, a gene affecting the development of the maize leaf auricle. One approach will be map-based cloning with the molecular […]