Christoph Fahrni

Christoph Fahrni
fahrni@chemistry.gatech.edu
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Christoph Fahrni earned a master’s degree in chemistry from the Federal Institute of Technology (ETH, Switzerland) and a Ph.D. degree in chemistry from the University of Basel (Switzerland). After working as a postdoctoral fellow at Northwestern University (Evanston, IL), he joined the School of Chemistry and Biochemistry at the Georgia Institute of Technology in 1999.

Professor
Associate Chair for Graduate and Postdoctoral Programs
Phone
404-385-1164
Office
Petit Biotechnology Building, Office 3310
Additional Research
Metals In Biological Systems. Approximately one third of all known proteins contain metal ions as cofactors and serve a wide variety of functions, such as structure stabilization, catalysis, electron transfer reactions or complex tasks, including signal transduction and gene regulation. Numerous diseases such as haemochromatosis or Menkes disease were found to be related with a defect in metal metabolism. Research is concerned with development of metal specific fluorescent probes for the investigation of the intracellular chemistry of trace elements, the mechanistic study of metalloprotein catalyzed reactions with unusual coordination geometries as well as the development of protein-based, semisynthetic organometallic catalysts in aqueous solution. Fluorescence Probes and Chelators for the Investigation of Intracellular Storage, Trafficking, and Homeostasis of Trace Elements. Until recently, little was known about how eukaryotic cells take up metal ions or regulate intracellular concentrations. Fluorescent chemosensors have been proven to be powerful and nondestructive tools for the study of intracellular metal ion distributions and have provided a wealth of information, including control of muscle contraction, nerve cell communication, hormone secretion, and immune cell activation. Research is concerned with the development of highly specific fluorescent probes for the detailed mechanistic investigation of copper storage and trafficking. Distribution and changes of intracellular copper concentration can be followed in vivo using fluorescence microscopy. Various combinatorial fluorophore libraries are being synthesized, which subsequently are screened for copper binding selectivity. Bioorganometallic Catalysis with Peptide and Protein Ligands. The distribution of metal ions in sea water can be directly correlated with their abundance in biological systems. Consequently, the platinum metals palladium, rhodium, iridium and platinum are not found in any of the natural occurring metalloproteins. Nevertheless, these cations are excellent catalysts for a wide variety of organometallic reactions. Research is focused on combining the rich chemistry of platinum metals with the advantage of proteins to catalyze reactions with high regio- and stereo-selectivity. Novel bioorganometallic catalysts are being developed via redesign of structurally well characterized proteins.
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Ronghu Wu

Ronghu Wu
ronghu.wu@chemistry.gatech.edu
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Research in the Wu lab is mainly focused on mass spectrometry (MS)-based proteomics. They are developing innovative methods to globally identify and quantify proteins and their post-translational modifications (PTMs), including glycosylation and phosphorylation, and applying them for biomedical research. Protein PTMs plays essential roles in biological systems, and aberrant protein expression and modification are directly related to various human diseases, including cystic fibrosis, cancer and infectious diseases. Novel analytical methods will profoundly advance our understanding of protein function, which will lead to the identification of proteins or modified proteins as effective drug targets and the discovery of biomarkers for early disease detection.

Associate Professor
Phone
404-385-1515
Office
EBB 4011
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Adegboyega “Yomi” Oyelere

Adegboyega “Yomi” Oyelere
adegboyega.oyelere@chemistry.gatech.edu
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Dr. Adegboyega “Yomi” Oyelere has received PhD from Brown University in 1998. Currently, he works as an associate professor in the School of Chemistry and Biochemistry at the Georgia Institute of Technology.

Associate Professor
Phone
404-894-4047
Office
Petit Biotechnology Building, Office 3305
Additional Research
Bioorganic Chemistry, Biochemistry and Drug Design, RNA-Small Molecule Interaction, Targeted Histone Deacetylase (HDAC) Inhibition, Design and Synthesis of Novel Bioconjugates for Molecular Delivery Applications
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Lily Cheung

Lily Cheung
lily.cheung@gatech.edu
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Lily Cheung got her research start as a sophomore at Rutgers University, where she graduated Summa Cum Laude with a B.S. in Chemical Engineering in 2008. She then earned her Ph.D. in Chemical Engineering from Princeton University in 2013. Under the supervision of Stanislav Shvartsman, she characterized gene regulatory networks controlling the development of the model organism Drosophila melanogaster, using a combination of molecular biology, genetics, and reaction-diffusion modeling.

During her postdoctoral training with Wolf Frommer at the Carnegie Institution for Science, she designed biomolecular sensors to quantify sugar transport in plants. Her current interests include the use of high-throughput quantitative techniques and mathematical modeling to advance our understanding of how metabolic and gene regulatory networks interact to control plant growth.

Lily is the recipient of a NSF NPGI Postdoctoral Fellowship in Biology, a NSF CAREER Award, and a Human Frontier Science Program Early Career Award.

Assistant Professor
Phone
404-894-2826
Office
ES&T L1230
Additional Research
Engineering of genetically encoded biosensors Quantitative fluorescence microscopy and image analysis Computational models of gene regulatory networks Transcriptional regulation and developmental biology of plants The past fifteen years has seen dramatic advancements in genome sequencing and editing. The cost of sequencing a genome has decreased by two orders of magnitude, giving rise to new systems-level approaches to biology research that aim to understand life as an emerging property of all the molecular interactions in an organism. At the same time, technologies that allow site-specific modifications of the genome are enabling researchers to manipulate multicellular organisms in unprecedented ways. From reductionist approaches to systems biology, and from conventional plant breeding to synthetic biology, the future of plant biology research relies on the adoption of computational methods to analyze experimental data and develop predictive models. In biomedicine, mathematical models are already revolutionizing drug discovery; in agriculture, they have the potential to generate more efficient, faster growing crop varieties. The goal of the Cheung lab is to bring quantitative techniques and mathematical modeling to plants in order to gain systems-level insight into their physiology and development - particularly to understanding how metabolic and gene regulatory networks interact to control homeostasis and growth.
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John Blazeck

John Blazeck
john.blazeck@chbe.gatech.edu
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The Blazeck Lab tackles challenges at the interface of immunology, engineering, and metabolism to improve human health. We utilize our expertise in cellular and protein engineering to control biological function and to develop novel therapies to fight disease.

Synthetic Immune Systems

Our immune system uses very complex processes to make exquisitely specific receptors that recognize disease causing agents, and much of our ability to fight diseases is contingent upon the development of a diverse repertoire of immune receptors. Many questions remain unanswered about these immune receptors. For instance, at a population level, can we characterize the millions of receptors each person makes? And then further determine which of these millions of receptors is most important towards recognizing and targeting a pathogen? And can we control the generation of immune receptors to have desired properties? We are striving to answer these questions by harnessing our immune system’s power in a synthetic setting to improve understanding and treatment options for numerous diseases, while developing applications for vaccine design, personalized medicine, and enzyme engineering.

Engineering Cellular Therapies

Immunotherapies are treatments designed to modulate the immune response that have shown astounding clinical potential, yet there are no current treatments with guaranteed success. We are working to engineer cellular systems with controllable, enhanced, and non-native functions that improve their impact and capability. By developing high throughput technologies to interrogate immune function, we hope to translate our findings into improvements in the next generation of cellular therapeutics. 

Developing Proteins that Fight Cancer and Control Metabolism

It is widely accepted that cancer cells have a significantly altered genomic and metabolic makeup relative to normal cells, but how can we best target these differences? By combining our expertise in metabolism and therapeutic protein engineering, are working to engineer proteins to directly target and fight cancer. For instance, certain enzymes can control the metabolic environment around tumors to inhibit their growth or to stimulate a native anti-cancer immune response. We utilize directed evolution approaches to optimize protein function and efficacy.

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F. Levent Degertekin

F. Levent Degertekin
levent.degertekin@me.gatech.edu

Dr. F. Levent Degertekin received his B.S. degree in 1989 from M.E.T.U, Turkey; M.S. degree in 1991 from Bilkent University, Turkey; and his Ph.D. in 1997 from Stanford University, California, all in electrical engineering. His M.S. thesis was on acoustic microscopy, and his Ph.D. work was on ultrasonic sensors for semiconductor processing, and wave propagation in layered media. He worked as an engineering research associate at the Ginzton Laboratory at Stanford University from 1997 until joining the George W. Woodruff School of Mechanical Engineering at Georgia Tech in spring 2000. 

He has published over 150 papers in international journals and conference proceedings. He holds 20 U.S. patents, and received an NSF CAREER Award for his work on atomic force microscopy in 2004. Dr. Degertekin served on the editorial board of the IEEE Sensors Journal, and on the technical program committees of several international conferences on ultrasonics, sensors, and micro-opto-mechanical systems (MOEMS).

Professor
George W. Woodruff Chair in Mechanical Systems
Phone
404-385-1357
Office
Love 311B
Additional Research

Degertekin's research focuses on understanding of physical phenomena in acoustics and optics, and utilizing this knowledge creatively in the form of microfabricated devices. The research interests span several fields including atomic force microscopy (AFM), micromachined opto-acoustic devices, ultrasound imaging, bioanalytical instrumentation, and optical metrology. Dr. Degertekin's research group, in collaboration with an array of collaborators, has developed innovative devices for applications such as nanoscale material characterization and fast imaging, hearing aid microphones, intravascular imaging arrays for cardiology, bioanalytical mass spectrometry, and microscale parallel interferometers for metrology.

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Hyojung Choo

Hyojung Choo
hyojung.choo@emory.edu
Assistant Professor
Phone
404-727-3727
Office
542 Whitehead Research Building, Emory School of Medicine
Additional Research

"Craniofacial muscles are essential muscles for normal daily life. They are involved in facial expressions (facial muscles), blinking and eye movement (eye muscles), as well as speaking and eating (tongue and pharyngeal muscles). Interestingly, craniofacial muscles have differential susceptibility to several muscular dystrophies. For example, craniofacial muscles are the most affected muscles in oculopharyngeal muscular dystrophy but the least affected muscles in Duchenne muscular dystrophy. Among craniofacial muscles, dysfunction of tongue and pharyngeal muscles could cause an eating disability, called dysphagia, afflicts almost 15 million Americans including elderly, neuronal (Parkinson's disease and bulbar-onset amyotrophic lateral sclerosis) and muscular disease (oculopharyngeal muscular dystrophy) patients. However, no cure or therapeutic treatment exists for dysphagia caused by muscular dystrophy. Elucidation of the mechanism(s) behind these differing susceptibilities of craniofacial muscles could lead to development of potential therapeutics targeted to specific skeletal muscles involved in particular types of muscular dystrophy. The mechanisms of skeletal muscles are of interest here because skeletal muscle cells are multinucleated cells. Typically, skeletal muscle cells contain hundreds of nuclei in a single cell since they are generated by fusion of muscle precursor cells during development or by fusion of muscle specific stem cells, called satellite cells, in adult skeletal muscles. However, it is unclear how skeletal muscle cells regulate the quantity and quality of these multi-nuclei. Since craniofacial skeletal muscles, such as extraocular and pharyngeal muscles, have active satellite cell fusion in comparison to limb muscles, they are therefore suitable models to study myonuclear addition and homeostasis."

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Bilal Haider

Bilal Haider
bilal.haider@bme.gatech.edu
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Bilal Haider is an assistant professor in the Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University. He received B.S. and M.S. degrees from the University of Illinois Urbana-Champaign and M.Phil. and Ph.D. degrees from Yale University. He joined the faculty at Georgia Tech after completing postdoctoral training at University College London.

Haider’s research measures, manipulates and deciphers neural circuit activity underlying normal and impaired visual perception, providing new insights into how the brain processes information and orchestrates behavioral actions.

Haider has received several prestigious awards, including from the Whitehall Foundation, Simons Foundation and the Alfred P. Sloan Foundation. His work has been published in leading journals, including NatureNature NeuroscienceNature Communications and Neuron.

Assistant Professor
Phone
404-385-4935
Office
UAW 3104
Additional Research
Bilal Haider’s research goal is to measure, manipulate, and decipher neural circuit activity underlying visual perception and visual attention. He received B.S. and M.S. degrees from the University of Illinois Urbana-Champaign, M. Phil. and Ph.D. degrees from Yale University, and postdoctoral training at University College London. His lab uses advanced electrical, optical, and behavioral technologies to reveal insights into the inner workings of the brain in real-time and with unprecedented resolution. By discovering mechanisms  of information processing in neural circuits, his research provides critical steps towards understanding impairments in many neurological disorders such as schizophrenia, epilepsy, and autism spectrum disorder. 
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Ingeborg Schmidt-Krey

Ingeborg Schmidt-Krey
ingeborg.schmidt-krey@biosci.gatech.edu

Ingeborg Schmidt-Krey is an associate professor in the School of Biological Sciences at Georgia Tech. Her research interests lie in the structure and function of eukaryotic membrane proteins, two-dimensional crystallization, electron crystallography, single particle analysis, and electron cryo-microscopy (cryo-EM).

Associate Professor
Phone
404-385-0286
Office
Cherry Emerson A118
Additional Research
Eukaryotic membrane proteins comprise approximately 60% of all drug targets and are consequently immensely important for biomedical research. Despite their importance, only few could thus far be studied at the structural level. My research focuses on the crystallization, structure and function of eukaryotic membrane proteins. Electron crystallography is the main tool employed to study these proteins in my laboratory. Initially, this involves testing of conditions for growing two-dimensional (2D) crystals, usually by reconstituting the detergent-solubilized membrane protein into a bilayer. Once crystallization parameters have been identified by electron microscopy of negatively stained samples, electron cryo-microscopy is employed to collect high-resolution data. The structure is then obtained by image processing. The approach of 2D crystallization and electron crystallography is particularly suitable for highly fragile membrane proteins such as many eukaryotic ones. Reconstitution ensures an environment that is close to the native one, the detergent is removed, and functional studies are relatively easily undertaken. Experimental phases are obtained due to the fact that images are collected. In some instances the image amplitudes can be substituted with electron diffraction amplitudes. Although electron crystallographic methods are well developed, little is known about the factors important in 2D crystallization, and screening protocols as for 3D crystallization do not exist. An important aspect of my research interests aims at developing screening methods and strategies for 2D crystallization and at understanding the underlying mechanisms.
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Christopher Rozell

Christopher Rozell
crozell@gatech.edu
SIPLab
Professor; School of Electrical and Computer Engineering
Director; Sensory Information Processing Lab
Phone
404.385.7671
Office
Centergy One 5218
Additional Research

Biological and computational vision Theoretical and computational neuroscience High-dimensional data analysis Distributed computing in novel architectures Applications in imaging, remote sensing, and biotechnology Dr. Rozell's research interests focus on the intersection of computational neuroscience and signal processing. One branch of this work aims to understand how neural systems organize and process sensory information, drawing on modern engineering ideas to develop improved data analysis tools and theoretical models. The other branch of this work uses recent insight into neural information processing to develop new and efficient approaches to difficult data analysis tasks.

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