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  • Mar
    28

    ChBE Seminar Series: Grant Landwehr and Jordy Ramos Yataco, Student Seminars

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    The Chemical and Biological Engineering Department is pleased to present student seminars by Grant Landwehr and Jordy Ramos Yataco as part of our ChBE Seminar Series.

    Grant Landwehr will present a seminar titled “Accelerating biocatalyst design for applications in sustainability.”

    ABSTRACT: The accelerating climate crisis poses one of the most urgent economic and social challenges to humankind, driven by the unabated release and accumulation of CO2 in our atmosphere. Industrial biotechnology is one of the most attractive approaches to meet this growing demand, however, many important biotransformations require efficient enzymes that have yet to be discovered or engineered. High-throughput methods to not only study enzymes but evaluate their engineering potential as industrial tools are crucial. During my PhD, I addressed this challenge by developing a cell-free DNA assembly and protein synthesis platform that allows us to rapidly design and screen 1,000’s of sequence-defined enzyme mutants in days. In this talk, I will discuss two examples of utilizing this workflow for applications in sustainable biomanufacturing. I will first show how we designed and built a synthetic carbon fixation pathway to upgrade CO2 into commodity chemicals. A fundamental aspect of our design philosophy was to build a completely synthetic pathway; that is, all five core reactions of the pathway are not known to occur enzymatically in nature. Considering such synthetic designs expands the diversity of metabolic solutions for carbon assimilation. In the second part of my talk, I will discuss efforts towards engineering amide synthetases for the synthesis of small molecule pharmaceuticals. Coupling machine learning with the rich sequence-fitness landscapes we generate enabled us to simultaneously engineer enzymes for multiple reactions simultaneously. Ultimately, this work accelerates the maturation of biocatalysts and serves as a blueprint for efficient, economical, and environmentally benign processes for biomanufacturing.

    Jordy Ramos Yataco will present a seminar titled " Structure and Performance Control of Catalysts under Methane Dehydroaromatization Conditions.”

    ABSTRACT: Natural gas is the feedstock for the production of a variety of other chemical species essential to modern society. Methane is the primary component of natural gas, but it is not transformed directly to higher-value chemicals in any large-scale industrial process. One proposed route is methane dehydroaromatization (MDA) in which methane is transformed to aromatics and hydrogen. The molybdenum-containing zeolite Mo/H-ZSM-5 is the benchmark catalyst for this reaction, and it shows high aromatic selectivity and near equilibrium conversion (~12% yield at 700 ⁰C); however, this performance declines over time due to formation of carbonaceous species (coke) that block pores and require harsh conditions for their removal.

    In this talk, supported MoOx (pre)catalysts were synthesized and studied under MDA conditions. Different structures were compared to develop structure-activity relationships. In the first approach, the external crystallite surfaces of the H-ZSM5 support were passivated via atomic layer deposition (ALD). This was to test the hypotheses that acid sites on the external surface were responsible for coke formation under MDA conditions. While SiO2 deposition could improve selectivity during the first use of the catalyst, the redistribution of MoOx during catalysis and regeneration, as determined by several characterization techniques, was the most important determinant of catalytic performance. In the second part of this talk, several variables related to the synthesis and use of Mo/H-ZSM-5 were contrasted for their role in determining catalytic performance. Variables such as Mo loading, Mo loading method, Si/Al ratio of H-ZSM-5 and oxidative regeneration were compared via newly-synthesized materials and via re-interpretation of three decades of literature data. These materials showed differences in performance, but when comparing them based on CH4 conversion vs. product selectivity, all the curves overlapped. This analysis demonstrated that fundamentally, all of these materials possessed the same active site, just in different numbers, and with different rates of deactivation. Using these learnings, the talk closes with a brief discussion of the use of non-zeolitic supports with BrØnsted acid sites generated by mixed oxides. These materials promise to have better stability under regeneration while providing new anchoring sites for MoOx pre-catalysts.

    Bagels and coffee will be provided at 9:30am, and the seminar will start at 9:40am. Please plan to arrive on time to grab a bagel and mingle!

    *Please note that there will be no Zoom option for seminars this year.

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    TIME Thursday, March 28, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Jennifer Young    jennifer.young@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    1

    BTP Seminar Series: Jorge Vazquez Anderson, Boston Consulting Group

    McCormick-Chemical and Biological Engineering (ChBE)

    4:30 PM

    EVENT DETAILS

    TIME Wednesday, May 1, 2024 at 4:30 PM - 5:30 PM

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    CONTACT Will Chaussee    william.chaussee@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    2

    ChBE Seminar Series: "Interfacial colloidal interactions, dynamics, and assembly: from biomembranes to ordered 2D materials" - Peter Beltramo, University of Massachusetts

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    TIME Thursday, May 2, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Olivia Wise    olivia.wise@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    8

    Extending Care: A Conversation about Conservation and Futurity

    Block Museum of Art

    6:00 PM Block Museum of Art, Mary and Leigh

    EVENT DETAILSmore info

    TIME Wednesday, May 8, 2024 at 6:00 PM - 7:30 PM

    LOCATION Block Museum of Art, Mary and Leigh    map it

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    CONTACT Block Museum of Art    block-museum@northwestern.edu EMAIL

    CALENDAR Block Museum of Art

  • May
    9

    ChBE Seminar Series: Influence of visible photons on catalytic reactions at metal nanoparticle surfaces - Phillip Christopher, University of California, Santa Barbara

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    TIME Thursday, May 9, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Olivia Wise    olivia.wise@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    16

    35th Annual Hugh M. Hulburt Memorial Lecture: "Adsorption Thermodynamics for Process Simulation" - Chau-Chyun Chen, Texas Tech University

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4 (M113), Technological Institute

    EVENT DETAILS

    TIME Thursday, May 16, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4 (M113), Technological Institute    map it

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    CONTACT Jennifer Young    jennifer.young@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    23

    ChBE Seminar Series: ARDEI Annual Lecture - "Restructuring the STEM Pipeline: Dismantling Stereotypes and Microaggressions in STEM to Build Networks of Belonging and Support" - Christine Reyna, DePaul University

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    TIME Thursday, May 23, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Olivia Wise    olivia.wise@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    30

    ChBE Seminar Series: Ruihan Li and Kunhuan Liu, Student Seminars

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    TIME Thursday, May 30, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Olivia Wise    olivia.wise@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • Jun
    10

    Northwestern Engineering PhD Hooding and Master's Degree Recognition Ceremony

    McCormick School of Engineering and Applied Science

    9:00 AM Welsh-Ryan Arena

    EVENT DETAILSmore info

    TIME Monday, June 10, 2024 at 9:00 AM - 11:00 AM

    LOCATION Welsh-Ryan Arena   

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    CONTACT Amy Pokrass    amy.pokrass@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Jun
    10

    Northwestern Engineering Undergraduate Convocation

    McCormick School of Engineering and Applied Science

    2:00 PM Welsh-Ryan Arena

    EVENT DETAILSmore info

    TIME Monday, June 10, 2024 at 2:00 PM - 4:00 PM

    LOCATION Welsh-Ryan Arena   

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    CONTACT Amy Pokrass    amy.pokrass@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Aug
    14

    Undergraduate Quantum Summer School

    McCormick School of Engineering and Applied Science

    All Day Ford Motor Company Engineering Design Center

    EVENT DETAILSmore info

    TIME Wednesday, August 14, 2024

    LOCATION Ford Motor Company Engineering Design Center    map it

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    CONTACT Dongyang Li    lidongyang@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science