Chemical and Biological Engineering Seminar Series

The Department of Chemical and Biological Engineering offers regular seminars to enrich the academic experience for students and faculty. When schedules permit, drop-in sessions with the speakers are offered after the seminars.Ìý

Fall 2024 ChBE Patten Seminar Series

The Patten Seminar Series brings notable professors to campus each academic year to speak on research topics across chemical and biological engineering.

James Patten was a native of Clifton, Colorado, and received a BSÌýdegree in chemical engineering in 1924 from the °µÍø½ûÇø, where he was also a football player. His subsequent career was with Cities Service Company in the Midwest and then with J. G. White Engineering Company of New York. The Patten endowment at the University of Colorado was established by a trust in the will of Mr. Patten when he passed away in 1982.Ìý His widow, Catherine Patten, was a graduate of Dary College in Springfield, Missouri. When she passed away in 1983, she left the remainder of the estate and the deed to her house to the Patten endowment, noting that her husband was always grateful for his education at CU. The Patten endowment has supported the Patten Seminar Series and the Patten Distinguished Lectureship in the Department of Chemical and Biological Engineering at the University of Colorado.

James M. and Catherine T. Patten Distinguished Lecturers

  • 2000Ìý Robert S. Langer, Massachusetts Institute of Technology

  • 2001Ìý Matthew Tirrell, University of California, Santa Barbara

  • 2002Ìý Mark Davis, California Institute of Technology

  • 2003Ìý Gregory Stephanopoulos, Massachusetts Institute of Technology

  • 2004Ìý David Tirrell, California Institute of Technology

  • 2005Ìý William Koros, Georgia Institute of Technology

  • 2006Ìý Pablo Debenedetti, Princeton University

  • 2007Ìý James A. Dumesic, University of Wisconsin, Madison

  • 2008Ìý Jay Keasling, University of California, Berkeley

  • 2009Ìý Frank Bates, University of Minnesota

  • 2010Ìý Frances Arnold, California Institute of Technology

  • 2013Ìý Harvey Blanch, University of California, Berkeley

  • 2013Ìý Jacob Israelachvili, University of California, Santa Barbara

  • 2014Ìý Keith Johnston, University of Texas at Austin

  • 2015Ìý Jeffrey Hubbell, University of Chicago

  • 2016Ìý Paula T. Hammond, Massachusetts Institute of Technology

  • 2018Ìý Nicholas L. Abbott, University of Wisconsin-Madison

  • 2020Ìý Sharon C. Glotzer, University of Michigan

  • 2022Ìý Enrique Iglesia,ÌýUniversity of California, Berkeley

  • 2024 Rachel A. Segalman,ÌýUniversity of California, Santa Barbara

Upon Mrs. Patten’s death, the James M. and Catherine T. Patten Professorship in Chemical Engineering was formally established.Ìý The endowment supporting this chair has since grown from $2.2 million in 1983 to nearly $7 millionÌýin 2024.

Patten Professors and Chairs

  • 1983 – 1985Ìý Max S. Peters — Professor, Patten Chair, Dean
  • 1986 – 1990Ìý Klaus D. Timmerhaus — Professor, Patten Chair, Associate Dean, President’s Teaching Scholar
  • 1992 – 1996Ìý John L. Falconer — Professor, Patten Chair
  • 1997 – 2007Ìý Robert H. Davis — Professor, Patten Chair, Dean
  • 2007 – presentÌý Christopher N. Bowman — Professor, Patten Chair
  • 2018 – presentÌý Mike McGehee — Professor, Patten Chair
  • 2020 – present Ryan Hayward — Patten Professor

Sept. 10
Speaker:ÌýRachel A. Segalman, Edward Noble Kramer Professor of Chemical Engineering, Chemistry and Biochemistry and Materials,ÌýUniversity of California, Santa Barbara
Seminar:ÌýUsing Bioinspired Polypeptoids to UnderstandÌýHow Chain Shape Influences Self-AssemblyÌýÌýand to Design New Materials

Sept. 24
Speaker:ÌýMichael D. Graham,ÌýDepartment of Chemical & Biology Engineering,ÌýDepartment of Mechanical Engineering,ÌýUniversity of Wisconsin-Madison
Seminar:ÌýDynamics of Blood Flow at the CellularÌýLevel in Health and Disease

Oct. 1
Speaker: ÌýAditya Kunjapur, assistant professor,ÌýChemical & Biomolecular Engineering,ÌýUniversity of Delaware
Seminar:Ìý New Cellular Functions Afforded by the Biosynthesis of Non-Standard Amino Acids

Oct. 8
Speaker:Ìý Marian Hettiaratchi, assistant professor, bioengineering, Knight Campus forÌýAccelerating Scientific Impact,ÌýUniversity of Oregon
Seminar:ÌýÌýDesign of Affinity-Controlled ProteinÌýDelivery Vehicles for Tissue Repair

Nov. 19
Speaker: Elizabeth Nance,ÌýBindra Endowed Associate ProfessorÌýof Chemical Engineering,ÌýUniversity of Washington
Seminar: Therapeutic Development for NewbornÌýand Pediatric Brain Disease

Dec. 3
Speaker: ÌýPeter Coveney, professor of physical chemistry, University College London
Seminar: Rapid Free Energy Prediction for Ligand-Protein Systems – Optimized Calculations for Drug Discovery and Personalized Medicine
Ìý

Sept. 26
Speaker: Lauren Marbella, associate professor, Department of Chemical Engineering, Columbia University
Seminar: Tracking Degradation in Commercial Li Batteries with High Chemical and Temporal Resolution

Oct. 3
Speaker:Ìý ÌýÌýAssociate ProfessorÌýEthan Lippmann, Chemical and Biomolecular Engineering,ÌýVanderbiltÌýUniversity
Seminar:ÌýÌýEngineering Strategies to Model and Treat Neurodegeneration

Oct. 17
Speaker: ÌýRussell Composto, professor, materials science and engineering,ÌýUniversity of Pennsylvania
Seminar:ÌýÌýElucidating Nanoparticle Transport inÌýHydrogels through Particle andÌýMatrix Engineering

Nov. 14
Speaker: Jason Shoemaker, associate professor, chemical and petroleum engineering,ÌýUniversity of Pittsburgh
Seminar:ÌýÌýMechanistic Modeling to Understand theÌýOrigins of Enhanced ImmunopathologyÌýDuring Respiratory

Fall 2024ÌýChBE Department Seminar Series

More seminarsÌýcoming soon. Stay tuned!

Fall 2024ÌýChBE PostdocÌýSeminar Series

More information coming soon. Stay tuned!


Oct. 10,ÌýÌý2023
Speaker:Ìý
Jin Gyun Lee, postdoctoral associate — Shields Research Group, Department of Chemical and Biological Engineering, °µÍø½ûÇø
Title:ÌýBio-Inspired Self-Propelling Microrobots for enhanced transport and drug delivery
In nature, biological swimmers navigate complex environments using non-linear motions to enhance their motility.Ìý Drawing inspiration from these microorganisms, self-propelling particles have emerged as synthetic analogs capable of replicating the navigational capabilities of natural swimmers. In this work, I present the capability of spherical colloids featuring low-symmetry metal patches to autonomously self-propel along 3D helical trajectories when remotely energized by an AC electric field. The adoption of helical motion is shown to enhance navigation through porous materials compared to linearly swimming particles, owing to its rotational component. Further, I will demonstrate the potential of self-propelling particles as a microscale medical device.Ìý In this second line of work, I designed bell-shaped microparticles with external fins to swim with non-linear trajectories within the confines of a mouse bladder. Utilizing their fast speed and sharp fins, these bubble-based microrobots, equipped with encapsulated drugs, mechanically adhere to the bladder epithelium, withstanding the shear stresses associated with urination. Sustained drug release from the particles was shown to activate immune cells, surpassing the performance of free drug controls. This system offers a promising strategy for deploying microrobots to efficiently explore large volumes, securely attach to soft tissue boundaries, and administer drug therapies over extended periods, holding potential for addressing a wide range of diseases in remote regions of the body.

Biosketch
Jin Gyun Lee has been a postdoctoral associate in Prof. Wyatt Shields' group since July 2021. He obtained his bachelor's degree in chemical engineering from North Carolina State University in 2015 and completed his PhD in chemical engineering at Louisiana State University under the guidance of Prof. Bhuvnesh Bharti in 2021. Upon the graduation, Jin was honored with the Distinguished Dissertation Award by the LSU Alumni Association, the highest recognition bestowed upon PhD graduates at the university. During his doctoral studies, Jin programmed complex trajectories for active particles, developed plant-based nanomaterials for spilled oil recovery and 3D printing, and investigated biomolecule adsorption on nanoparticles. In his current role with the Shields group, Jin's research focuses on the advancement of microrobots powered by external fields and biomimetic materials for biomedical applications.Ìý

Oct. 10,ÌýÌý2023
Speaker:
Anni Shi, postdoctoral associate,ÌýSchwartz Research Group,ÌýDepartment of Chemical andÌýBiological Engineering,Ìý°µÍø½ûÇø
Title:ÌýÌýPlenty of Room at the Interface:ÌýExploring the Potentials of MicroÌýand Nanostructured Interfaces


Seminar Abstract
The intricate architecture of interfaces harbors a rich ground for physical and chemical interactions, crucial in areas such as filtration, catalysis, and biomedical applications. Precise structured interfaces govern phenomena from microscopic diffusive behaviors to molecular-level reactions, presenting as dynamic platform for scientific exploration and application.

Here, I would like to share my recent research on impact of microstructures in porous media on transport dynamics of confined nanoparticles, aiming at sculpting models for mass transport in complex environment advancing energy-related separation technologies. The studies include modulation of heterogeneity of porous media on the particle's long-time diffusion and trapping duration. Furthermore, I will discuss the utilization of amplified hydrodynamic coupling by interface confinement to facilitate efficient transport of nanoparticles. Into the intricacies of detailed nanoscopic interfacial structures, hierarchical chemical patterns are shown their pivotal roles in controlling chemical reactions such as diacetylene polymerization and silane crosslinking. These reactions markedly diverge from their bulk counterparts, pushing us to rethink structure-function relationship governing interfacial reactions in nanoscale. This re-evaluation forges paths to enhance reaction precision and efficiency, benefiting realms ranging from integrated circuits to the formation of cell-instructive surfaces indispensable in the biomedical research.

Biosketch
Anni started her research journey at Wuhan University, where she earned her BS degree in chemistry. She later pursued PhD research specializing in nanoscale surface patterning, guided by Professor Shelley Claridge at Purdue University. Relocating from Indiana to Colorado, Anni joined the research group of Professor Daniel Schwartz, with a particular focus on exploring interfacial-confined diffusion through single particle/molecule tracking.

Ìý