This is the monthly networking meeting for faculty and staff affiliated with NDnano. For more information on affiliating with the Center, please contact Heidi Deethardt at deethardt.1@nd.edu.

Thursday, February 22
Noon-1:00 pm • B01 McCourtney Hall

Presenter

Gabriel Burks, Assistant Professor, Chemical and Biomolecular Engineering

Title

Exploring the Nanoscale: In-situ TEM and Multimodal Characterization of Soft Matter

Abstract

The pursuit of advanced materials with tailored properties has guided extensive research into polymer crystallization and functional material development. Here we introduce the foundation of our new research program focused on these domains by drawing inspiration from nature's complex structural models and harnessing the power of multimodal characterization techniques, with a particular focus on in-situ transmission electron microscopy (TEM).

Nature has provided a wealth of intricate structural designs, such as the hierarchical arrangements found in many biological systems. By investigating and emulating these complex natural structures, we seek to expand our understanding of classical polymer crystallization processes and develop new synthetic processing methods, and novel functional materials with enhanced properties. In-situ TEM stands as a pivotal tool in this investigation, offering real-time insights into the dynamic evolution of materials at nanoscale dimensions. By monitoring and manipulating polymer crystallization processes within the TEM environment, we gain unprecedented control over nucleation, growth, and morphology. This allows for the direct observation of critical events, including lamellar formation, spherulite growth, and defect generation, offering crucial data for mechanism validation and eventual smart molecular assembly. 

Adopting a multimodal characterization approach further enriches our research by coupling TEM with complementary techniques, such as atomic force microscopy, X-ray diffraction, thermal analysis, and various spectroscopy, which enables us to achieve a comprehensive understanding of the structural and chemical aspects of soft material systems. This approach enables our identification of key parameters governing crystallization kinetics and eventual material performance.

Through the integration of natural design principles, in-situ TEM methods, and multimodal characterization techniques, we aim to: 1) elucidate the underlying mechanisms of classical polymer crystallization phenomena, 2) enable new modes for materials processing and development, and 3) better understand the assembly and structural variance of proteins associated with degenerative brain disease. Ultimately, our interdisciplinary research program not only advances our fundamental understanding of materials science but also paves the way for innovative applications across various industries, including energy, healthcare, and human performance.

Register to attend the February 22 luncheon