the Future: Nanoparticles Part 1<p style="display: none;">​This episode is all about nanoparticles. What are their properties, how are they formed and why you should care.</p><div style="text-align: center;"><div class="cstm-section" style="margin: 0px 20px 0px 0px; border: currentcolor; text-align: left; vertical-align: top; display: inline-block; max-width: 250px;"><h3>Podcast Host<br/></h3><div style="text-align: center;"> <a href="/Profiles/Pages/Aaron-Bobick.aspx"> <img alt="Aaron Bobick" src="/Profiles/PublishingImages/Bobick_Aaron.jpg?RenditionID=3" style="margin: 5px;"/> <br/> <strong>Aaron Bobick </strong></a> <br/> <span style="font-size: 12px;">Dean</span> </div></div><div class="cstm-section" style="border: currentcolor; vertical-align: top; display: inline-block; max-width: 520px;"><h3>Episode 2 Guests</h3><div style="text-align: center; margin-right: 25px; display: inline-block;"> <a href="/Profiles/Pages/Srikanth-Singamaneni.aspx"> <img alt="Srikanth Singamaneni" src="/Profiles/PublishingImages/Singamaneni_Srikanth.jpg?RenditionID=3" style="margin: 5px;"/> <br/> <strong>Srikanth Singamaneni</strong></a>  <br/> <span style="font-size: 12px;">Professor</span> </div><div style="text-align: center; display: inline-block;"> <a href="/Profiles/Pages/Rajan-Chakrabarty.aspx"> <img alt="Rajan Chakrabarty" src="/Profiles/PublishingImages/Chakrabarty_Rajan.jpg?RenditionID=3" style="margin: 5px; width: 120px; height: 120px;"/> <br/> <strong>Rajan Chakrabarty</strong></a>  <br/> <span style="font-size: 12px;">Assistant Professor</span> </div></div></div> <br style="clear: both;"/> <div class="ms-rtestate-read ms-rte-wpbox" contenteditable="false"><div class="ms-rtestate-notify ms-rtestate-read dd04e80a-5f2f-49a9-a3fc-de0dd43fa43e" id="div_dd04e80a-5f2f-49a9-a3fc-de0dd43fa43e"></div><div id="vid_dd04e80a-5f2f-49a9-a3fc-de0dd43fa43e" style="display: none;"></div></div><img alt="" src="/news/PublishingImages/Podcast-nano-1-news.jpg?RenditionID=1" style="BORDER:0px solid;" /><div style="text-align: center;"> <a href=""> <img class="ms-rtePosition-4" src="/news/PublishingImages/itunes_podcast2.png" alt="" style="margin: 5px;"/></a> <a href="" rel="nofollow"> <img width="225" alt="Listen on Google Play Music" src=""/></a> <br/></div>2018-08-07T05:00:00ZThis episode is all about nanoparticles: What are their properties, how are they formed and why should you care?<p>This episode is all about nanoparticles: What are their properties, how are they formed and why should you care?<br/></p> alum Behnken to test flight commercial spacecraft<p>​Engineering alumnus Bob Behnken has been chosen as one of NASA's astronauts who will fly American-made, commercial spacecraft to and from the International Space Station. <br/></p><img alt="" src="/news/PublishingImages/Behnken,%20Bob%20NASA.jpg?RenditionID=2" style="BORDER:0px solid;" /><p>Behnken, a St. Louis native who earned two bachelor's degrees in Engineering at WashU in 1992, was chosen as one of two astronauts to fly test flights on the Crew Dragon, designed by SpaceX.<br/></p><p> He is a flight test engineer and colonel in the Air Force and joined the astronaut corps in 2000. He flew aboard space shuttle Endeavour twice, for the STS-123 and STS-130 missions, during which he performed six spacewalks totaling more than 37 hours. This mission will return astronaut launches to U.S. soil for the first time since the space shuttle was retired in 2011.</p><p> Behnken earned a master's and a doctorate from California Institute of Technology. </p><div class="ms-rtestate-read ms-rte-embedcode ms-rte-embedil ms-rtestate-notify s4-wpActive" contenteditable="false"><iframe width="560" height="315" src="" frameborder="0" allow="autoplay; encrypted-media"></iframe> </div>Bob Behnken. Photo courtesy of NASA. Beth Miller 2018-08-06T05:00:00ZEngineering alumnus Bob Behnken will test fly American-made commercial spacecraft. Y of cell group behavior target of $1.9 million award<img alt="Amit Pathak Lab" src="/news/PublishingImages/Pathak%20lab.jpg?RenditionID=1" style="BORDER:0px solid;" /><div id="__publishingReusableFragmentIdSection"><a href="/ReusableContent/36_.000">a</a></div><p>Researchers have thought that cancer begins when a single cell goes rogue in the body then begins to grow and multiply. Now, they are investigating evidence of more damage when a group of cells breaks off from a colony and more follow, leading to large-scale metastasis.</p><p>Amit Pathak, a mechanical engineer at Washington University in St. Louis who specializes in mechanobiology, plans to take a closer look at various aspects of cell group behavior with a prestigious five-year, $1.9 million grant for early-stage investigators from the National Institutes of Health (NIH). The Outstanding Investigator Award provides support for research that falls within the mission of the National Institute of General Medical Sciences Maximizing Investigators' Research Award (MIRA) program. The funding gives an investigator flexibility to conduct research without specific aims.</p><p>Pathak, an assistant professor in mechanical engineering & materials science in the School of Engineering & Applied Science, plans to build on previous research into cell behavior in mechanically heterogeneous environments. His work centers around the epithelial-mesenchymal transition (EMT), or cells' transition from a group to independence. Epithelial cells, which are found in blood vessels and in the lining of various organs in the body, can change into mesenchymal cells, which are important in both embryonic development and cancer metastasis. Most healthy cells like to stay together, but in disease processes such as cancer, the integrity of the group is somehow compromised. In previous research, Pathak showed that the stiffer the tissues, the more likely EMT will take place.</p><blockquote>"We are very interested in tumor invasion and fibrosis," Pathak said. "In this project, we will look at how group cells behave in confinement, how they process the temporal information as to which environment they are coming from. We're looking at the mechanisms behind disease pathways and fundamental cell behavior to determine how that leads to disease outcome."<br/></blockquote><p>Pathak plans to study the role of confinement on group cells' behavior, measure how deeply cells feel and determine where memory is stored within the cell.</p><p>In the past five years, Pathak and his lab have created a computational model showing that epithelial cells are more likely to break off from their groups when in a confined environment. In addition, they studied the mechanical memories of grouped cells in both soft and stiff environments to show that cells maintain the properties they had in their previous environment before they move. His lab created a patent-pending device that allows them to measure how long the cells' memory lasts in the new environment. Most recently, his lab also found that a defect in tissue boundaries can lead normal cells to take on characteristics of diseased cells, such as cancer cells, and invade the surrounding tissue.</p><p>Pathak's lab conducts both computational modeling and experimentation, which expedites the discovery process. He is participating in the National Science Foundation-funded Science and Technology Center for Engineering Mechanobiology (CEMB), a collaboration between Washington University and the University of Pennsylvania.</p><SPAN ID="__publishingReusableFragment"></SPAN><p><br/></p><br/><br/><div class="cstm-section"><h3 style="margin-top: 0px; font-family: "open sans", sans-serif; font-size: 1.34em; text-align: center; border-bottom: 1px solid #b0b0b0; padding-bottom: 12px;">Amit Pathak</h3><div style="color: #343434;"><div style="text-align: center;"><img src="/Profiles/PublishingImages/Pathak_Amit.jpg?RenditionID=3" alt="" style="margin: 5px;"/></div><ul style="padding-left: 20px;"><li>Assistant Professor of Mechanical Engineering & Materials Science <br/></li><li>Expertise: Biomechanics, biomaterials, mechanobiology of the cell, and interactions between cells and extracellular matrices.<br/></li></ul><p style="text-align: center;"><a href="/Profiles/Pages/Amit-Pathak.aspx" style="background-color: #ffffff;">View Bio</a> <br/></p></div><div> </div></div>Amit Pathak LabBeth Miller2018-08-01T05:00:00ZResearchers are investigating evidence of more damage when a group of cells breaks off from a colony and more follow, leading to large-scale metastasis.<p>​<span style="color: #222222; font-size: 16px;">Pathak to study collective cell mechanobiology in complex matrices </span><br/></p> materials scientists combine supercomputers, 3-D printers to create strong metallic alloys<img alt="tiny dots of individual candidate alloys" src="/news/PublishingImages/Flores%20research%202018.JPG?RenditionID=1" style="BORDER:0px solid;" /><div id="__publishingReusableFragmentIdSection"><a href="/ReusableContent/36_.000">a</a></div><p>Engineers looking to create high-performance metallic alloys that are resistant to corrosion, fatigue and wear while remaining strong often use a trial-and-error method to find the right combination of elements. Now, engineers at Washington University in St. Louis plan to use computational methods and additive manufacturing to find the best combinations, saving significant time and money.<br/></p><p>Katharine Flores, professor of mechanical engineering & materials science in the School of Engineering & Applied Science, will build on some foundational work in high-entropy alloys — single-phase substances of five or more metallic elements in relatively equal parts — to find new alloys for structural, load-bearing applications, such as in aircraft, power generators and energy storage devices. Instead of the time-consuming trial-and-error method, Flores will work with Rohan Mishra, assistant professor of mechanical engineering & materials science, who will use quantum-mechanical computation to identify combinations of elements that have the most promise. Once identified, Flores will synthesize the alloys using a laser-aided metal-on-<g class="gr_ gr_45 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" id="45" data-gr-id="45">mtal</g> deposition technique to create a library of potential alloys for further testing.<br/></p><p>With a three-year, $496,077 grant from the National Science Foundation, Flores and Mishra will use these methods to look for high-entropy alloys that can withstand high temperatures. Mishra will perform the computational calculations on some of the most powerful supercomputers to identify promising candidates from a large composition space. Then Flores will use her lab's technique to create a 2-D library, a one-inch square piece of metal on which about 100 tiny dots of individual candidate alloys can be fabricated. Flores' laser-deposition technique creates the library in about 30 minutes with just a few grams of material.<br/></p><p>The additive manufacturing technique is similar to polymer 3-D printing where the machine draws the material onto a surface layer by layer. However, Flores uses a laser to melt a small region of a base material, then adds up to four different powders to the melt.<br/></p><blockquote>"What we're doing with this research is changing the composition of the powders as we raster the laser across the surface, and there are a few ways we can do that," Flores said.</blockquote><p>"We can change the composition of the powder continuously to produce a gradient, or we can make individual dots with different compositions."<br/></p><p>While Flores has been doing similar work in bulk metallic glasses for several years, the high-entropy alloys are a new class of materials generating significant interest, she said. One particular attribute that is appealing is that the materials don't undergo phase separation, or become less homogenous at different temperatures as other metals do.</p><p> "On the calculation side, Rohan is going to identify combinations of elements that produce a single phase or produce an interesting combination of other phases," said Flores, who also is director of the university's Institute of Materials Science & Engineering. "He will tell us what combinations to try, then we will deposit those elements and do the microstructural characterization and mechanical property measurements to test the strength and stiffness and map out those properties."<br/></p><p>Once Flores' lab has the measurements, she will provide them to Mishra, who can feed them back into his computational model to improve his predictions. In addition, Mishra's team will use one of the world's most powerful microscopes at Oak Ridge National Laboratory to look at the structure of the materials at the atomic scale.<br/></p><p>In addition to accelerating the development of new alloys, the work will contribute to the growing field of additive manufacturing, which could be used to make complicated parts in a single manufacturing process.<br/></p><p>"When making a part for an airplane that has 20 different pieces that need to go together, if you can make it in one piece, you eliminate all of the fasteners, which means less weight, improved fuel efficiency and reduced manufacturing and maintenance time," she said.<br/></p><p>Previously, Flores' lab created 21 alloys with aluminum, cobalt, chromium, iron <g class="gr_ gr_49 gr-alert gr_gramm gr_inline_cards gr_run_anim Punctuation only-ins replaceWithoutSep" id="49" data-gr-id="49">and</g> nickel and tested them using X-ray diffraction, microscopy and nanoindentation, a method used to test the hardness and stiffness of materials. In research recently published in <em>Intermetallics</em>, the team found that the laser-deposition technique created alloys consistent with those created with traditional methods, showing that the technique is a highly efficient method that can speed up the process of identifying and refining the most promising compositions prior to creating larger quantities.<br/></p><SPAN ID="__publishingReusableFragment"></SPAN><p>Li M, <g class="gr_ gr_44 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" id="44" data-gr-id="44">Gazquez</g> J, Borisevich A, Mishra R, Flores K. Evaluation of microstructure and mechanical property variations in AlxCoCrFeNi high entropy alloys produced by a high-throughput laser deposition method. <em>Intermetallics</em>. April 2018. DOI: <a href="" style="background-color: #ffffff;"></a><br/></p><p>​</p><div class="cstm-section"><h3 style="margin-top: 0px; font-family: "open sans", sans-serif; font-size: 1.34em; text-align: center; border-bottom: 1px solid #b0b0b0; padding-bottom: 12px;">Collaborators<br/></h3><div><p style="text-align: center;"> <img src="/Profiles/PublishingImages/Flores_Kathy.jpg?RenditionID=3" alt="" style="margin: 5px;"/> <br/> </p><p style="text-align: center;"> <a href="/Profiles/Pages/Kathy-Flores.aspx"></a><a href="/Profiles/Pages/Kathy-Flores.aspx"><strong>Katharine Flores</strong></a></p><p style="text-align: center;">Professor of Mechanical Engineering & Materials Science<br/></p><p></p><div style="color: #343434; text-align: center;"> <strong><a href="/Profiles/Pages/Srikanth-Singamaneni.aspx" style="color: #9e0918; text-decoration-line: underline; outline: 0px;"><img src="/Profiles/PublishingImages/Mishra_Rohan_03.jpg?RenditionID=3" alt="" style="margin: 5px;"/></a></strong></div><p style="color: #343434; text-align: center;"> <a href="/Profiles/Pages/Rohan-Mishra.aspx"><strong>Rohan Mishra</strong></a></p><p style="color: #343434; text-align: center;">Assistant Professor of <span style="font-size: 1em;">Mechanical Engineering & Materials Science</span></p></div></div>Tiny dots of individual candidate alloysBeth Miller 2018-08-01T05:00:00ZReplacing time-consuming trial and error, computational methods will be used to find new alloys for structural, load-bearing applications<p>​Research using quantum-mechanical computation will be used to identify combinations of elements that have the most promise for load-bearing applications<br/></p> faculty join School of Engineering & Applied Science <img alt="Green Hall" src="/news/PublishingImages/131009_jaa_brauer_green_hall_029.jpg?RenditionID=1" style="BORDER:0px solid;" /><div id="__publishingReusableFragmentIdSection"><a href="/ReusableContent/36_.000">a</a></div><h4> <span class="ms-rteStyle-References">"Each year, we compete with the very best engineering schools to recruit extraordinary faculty members," said Aaron F. Bobick, dean and the James M. McKelvey Professor. "This new cohort is incredibly talented, and we are excited about the new research areas these faculty will bring, as well as their knowledge and experience they bring to our students."<br/></span></h4><p> <br/> </p> <span><hr style="clear: both;"/></span> <h3>Biomedical Engineering </h3><p> <img src="/Profiles/PublishingImages/Princess%20Imoukhuede%20temp.JPG?RenditionID=7" class="ms-rtePosition-2" rtenodeid="4" alt="" style="margin: 10px;"/><a href="/Profiles/Pages/Princess-Imoukhuede.aspx" rtenodeid="2"><strong>Princess Imoukhuede, associate professor</strong></a> </p><ul><li>PhD, bioengineering, California Institute of Technology</li><li>SB, chemical engineering, Massachusetts Institute of Technology <br/></li></ul><p>Imoukhuede joins BME from the University of Illinois at Urbana-Champaign, where she has been an assistant professor in the Department of Bioengineering. Previously, she was a postdoctoral fellow in biomedical engineering at Johns Hopkins University School of Medicine. She has earned numerous awards, including the 2017 NSF CAREER Award in 2017 and 2018 IMSA Distinguished Leadership Award.<br/></p><p>Imoukhuede's research focus examines mechanisms regulating angiogenic signaling with focus on tyrosine kinase receptors, VEGFRs and PDGFRs. She pioneers both quantitative biological measurements and computational biological models to delineate ligand-receptor binding, receptor and effector phosphorylation, and sprouting angiogenic hallmarks (cell proliferation and migration). This bottom-up systems biology paradigm offers mechanistic insight towards directing vascular signaling with translational implications to cancers and cardiovascular diseases. <br/></p><p><br/></p><p> <img src="/Profiles/PublishingImages/Abhinav%20Jha%202018.jpg?RenditionID=7" class="ms-rtePosition-2" rtenodeid="8" alt="" style="margin: 10px;"/><a href="/Profiles/Pages/Abhinav-Jha.aspx" rtenodeid="6"><strong>Abhinav Jha, assistant professor</strong></a></p><ul><li>PhD, optical sciences, University of Arizona</li><li>MS, electrical engineering, University of Arizona</li><li>BTech, electronics engineering, Motilal Nehru National Institute of Technology, Allahabad, India<br/></li></ul><p>Jha joins the BME and Radiology departments at the School of Medicine from Johns Hopkins School of Medicine, where he was an instructor in the Division of Medical Imaging Physics, Department of Radiology and Radiological Science since 2015. Previously, he was a research fellow at Johns Hopkins University. <br/></p><p>Jha's research interests are in the design, optimization and evaluation of medical imaging systems and algorithms using statistical task-based quantitative image-science approaches. He has devised novel theoretical and computational methods for objective evaluation of image quality (OAIQ), simulating imaging systems, and image reconstruction and image analysis. His research has had several clinical and pre-clinical impacts, such as being one of the first to demonstrate the impact of task-specific imaging in improving diffuse optical imaging and diffusion MRI. A major area of current focus is on improving clinical quantitative imaging using a combination of physics and machine-learning-based methods.<br/></p><p><br/></p><p> <img src="/Profiles/PublishingImages/Jai%20Rudra%20temp.jpg?RenditionID=7" class="ms-rtePosition-2" rtenodeid="11" alt="" style="margin: 10px;"/><a href="/Profiles/Pages/Jai-Rudra.aspx" rtenodeid="9"><strong>Jai Rudra, assistant professor</strong></a></p><ul><li>PhD, biomedical engineering, Louisiana Tech University </li><li>BTech, electronics and instrumentation engineering, Jawaharlal Nehru Technological University, Hyderabad, India<br/></li></ul><p>Rudra joins BME from the University of Texas Medical Branch in Galveston, where he has been an assistant professor in the Department of Pharmacology and Toxicology. Previously, he was a postdoctoral fellow at the University of Chicago in the Department of Surgery. <br/></p><p>At the University of Texas, he is a member of the Sealy Center for Vaccine Development, the Center for Addiction Research and of the Human Pathophysiology and Translational Research Graduate Program. His research interests are in the design and synthesis of amyloid-inspired supramolecular biomaterials for applications in vaccine development and immunotherapy. <br/></p><p><br/></p> <span> <hr/></span> <h3>Computer Science & Engineering </h3><p> <strong><img src="/Profiles/PublishingImages/Yevgeniy-Vorobeychik-temp.jpg?RenditionID=7" class="ms-rtePosition-2" alt="" style="margin: 10px;"/>Yevgeniy (Eugene) Vorobeychik, associate professor</strong></p><ul><li>PhD, MSE, computer science & engineering, University of Michigan</li><li>BS, computer engineering, Northwestern University <br/></li></ul><p>Vorobeychik joins CSE from Vanderbilt University, where he has been an assistant professor of computer science and computer engineering since 2013 and an assistant professor of biomedical informatics at Vanderbilt's Medical Center since 2016. Previously, he was a principal and member of technical staff at Sandia National Laboratories and a postdoctoral researcher at the University of Pennsylvania. <br/></p><p>His research interests include algorithmic and behavioral game theory, game theoretic modeling of security, electronic commerce, simulation analysis, social and economic network analysis, optimization, complex systems, multi-agent systems, machine learning. <br/></p><p><br/></p><p> <img src="/Profiles/PublishingImages/Miaomiao%20Zhang%20temp.JPG?RenditionID=7" class="ms-rtePosition-2" rtenodeid="14" alt="" style="margin: 10px;"/><a href="/Profiles/Pages/Miaomiao-Zhang.aspx" rtenodeid="12"><strong>Miaomiao Zhang, assistant professor</strong></a></p><ul><li>PhD, computing, University of Utah</li><li>MS, computer science, East China Normal University, Shanghai</li><li>BS, computer science, Henan Normal University, Henan, China<br/></li></ul><p>Zhang joins CSE from Lehigh University, where she has been an assistant professor of computer science and engineering. Previously, she was a postdoctoral associate in electrical engineering and computer science at Massachusetts Institute of Technology. <br/></p><p>Her research interests are in image analysis, machine learning, statistical modeling and computer vision. Specifically, she is interested in developing fast and robust deformable image registration methods for real-time, image-guided neurosurgery; analyzing anatomical shape changes for studying neurodegenerative diseases, such as Alzheimer's disease, and devising efficient clinical trial-oriented software packages; and leading deep learning research for effective image segmentation and classification, such as tumor identification. <br/></p><p><br/></p><p> <img src="/Profiles/PublishingImages/Ning%20Zhang%20temp.jpg?RenditionID=7" class="ms-rtePosition-2" rtenodeid="17" alt="" style="margin: 10px;"/><a href="/Profiles/Pages/Ning-Zhang.aspx" rtenodeid="15"><strong>Ning Zhang, assistant professor</strong></a> </p><ul><li>PhD, computer science and applications, Virginia Polytechnic Institute and State University </li><li>MS, system engineering, Worcester Polytechnic Institute</li><li>BS, MS, computer science, University of Massachusetts, Amherst<br/></li></ul><p>Zhang joins CSE from Raytheon, a principal cyber engineer and technical lead at Cyber Security Innovations of Raytheon, where he has worked since 2007. In addition, he is an adjunct assistant professor in computer science at Virginia Tech. <br/></p><p>Zhang's research focus is system security, which lies at the intersection of security, embedded system, computer architecture and software. He has worked to protect cyber-physical military systems and critical infrastructures at Raytheon since 2007. <br/></p><p><br/></p> <span> <hr/></span> <h3>Energy, Environmental & Chemical Engineering</h3><p> <img src="/Profiles/PublishingImages/Fangqiong%20Ling.JPG?RenditionID=7" class="ms-rtePosition-2" rtenodeid="20" alt="" style="margin: 10px;"/><a href="/Profiles/Pages/Fangqiong-Ling.aspx" rtenodeid="18"><strong>Fangqiong Ling, assistant professor</strong></a></p><ul><li>PhD, MS, environmental engineering, University of Illinois at Urbana-Champaign</li><li>BS, environmental engineering, Tsinghua University, Beijing <br/></li></ul><p>Ling joins EECE from Massachusetts Institute of Technology, where she has been a postdoctoral associate in the Department of Biological Engineering. She received an Alfred P. Sloan Foundation Microbiology of the Built Environment Postdoctoral Fellowship. <br/></p><p>Ling's research has employed genomics, machine learning and ecological theory to study microbial diversity and community assembly in aquatic ecosystems at the interface of natural and built environments, such as water infrastructure and aquifers. During her postdoc, she developed new genomic metrics for population census based on human microbiome data. She will lead a computational and experimental lab focused on understanding principles underlying biodiversity, functioning and resilience of microbial ecosystems relevant to sustainability and health, and develop methods to enable ecologically-informed engineering designs.<br/></p><p><br/></p><p> <img src="/Profiles/PublishingImages/Jian%20Wang%202018.jpg?RenditionID=7" class="ms-rtePosition-2" rtenodeid="23" alt="" style="margin: 10px;"/><a href="/Profiles/Pages/Jian-Wang.aspx" rtenodeid="21"><strong>Jian Wang, professor</strong></a> </p><ul><li>PhD, MS, chemical engineering, California Institute of Technology </li><li>BS, physical chemistry, University of Science and Technology of China <br/></li></ul><p>Wang joins EECE from Brookhaven National Laboratory, where he has been a scientist with tenure since 2010. He joined Brookhaven in 2002 as the Goldhaber Distinguished Fellow. He also was an affiliate faculty member in the School of Marine and Atmospheric Sciences at Stony Brook University from 2005-2008 and was a visiting scientist at Max Planck Institute for Chemistry in the summer of 2016. He holds four U.S. Patents. <br/></p><p>Wang's research focuses on the processes that drive the properties and evolutions of atmospheric aerosols and the interactions between aerosols and clouds. His current research topics include aerosol properties and processes under natural conditions that were prevalent during pre-industrial era; nucleation and new particle formation; aerosols in the marine environment; effects of aerosols on cloud microphysical properties and macrophysical structure; and development of advanced aerosol instruments focusing on aircraft-based deployments.<br/></p><p><br/></p> <span><hr/></span> <h3>Mechanical Engineering & Materials Science </h3><p> <img src="/Profiles/PublishingImages/Jianjun%20Guan%20temp.jpg?RenditionID=7" class="ms-rtePosition-2" rtenodeid="26" alt="" style="margin: 10px;"/><a href="/Profiles/Pages/Jianjun-Guan.aspx" rtenodeid="24"><strong>Jianjun Guan, professor </strong></a> <br/></p><ul><li>PhD, chemistry, Zhejiang University, Hangzhou, China</li><li>BS, MS, polymer science and engineering, Qingdao University of Science and Technology, China <br/></li></ul><p>Guan comes to MEMS from The Ohio State University, where he has been a professor of materials science and engineering. He joined Ohio State in 2007 after serving as a research assistant professor at the McGowan Institute for Regenerative Medicine at the University of Pittsburgh, where he also a postdoctoral fellow and research associate. <br/></p><p>Guan's research interests are in biomimetic biomaterials synthesis and scaffold fabrication; bioinspired modification of biomaterials; injectable and highly flexible hydrogels; bioimageable polymers for MRI and EPR imaging and oxygen sensing; mathematical modeling of scaffold structural and mechanical properties; stem cell differentiation; neural stem cell transplantation for brain tissue regeneration; bone tissue engineering and cardiovascular tissue engineering.<br/></p><p><br/></p> <SPAN ID="__publishingReusableFragment"></SPAN> <br/><div class="cstm-section"><h3>Faculty by department<br/></h3><ul style="padding-left: 20px; color: #343434;"><li> <span style="font-size: 1em; line-height: 1.3;"><a href="">Biomedical Engineering</a></span><br/></li><li> <span style="font-size: 1em; line-height: 1.3;"><a href="">Computer Science & Engineering</a></span><br/></li><li> <span style="font-size: 1em; line-height: 1.3;"><a href="">Electrical & Systems Engineering</a></span><br/></li><li> <span style="font-size: 1em; line-height: 1.3;"><a href="">Energy, Environmental & Chemical Engineering</a></span><br/></li><li> <span style="font-size: 1em; line-height: 1.3;"><a href="">Mechanical Engineering & Materials Science​</a></span></li></ul></div>Beth Miller2018-07-18T05:00:00Z​A diverse group of new faculty joins the School of Engineering & Applied Science at Washington University in St. Louis, bringing the total number to 96.5 during the 2018-2019 academic year.<p>​A diverse group of new faculty joins the School of Engineering & Applied Science at Washington University in St. Louis, bringing the total number to 96.5 during the 2018-2019 academic year.<br/></p>