- Heloisa N. Bordallo, Niels Bohr Institute, University of Copenhagen, Denmark
X-rays allow the characterization of the microstructure of materials that we rely on daily. Neutron imaging can identify light elements such as hydrogen and thus can provide information on proton distribution within the microstructure. Thus both x-rays and neutron imaging, complemented by neutron spectroscopy, which brings information about hydrogen mobility, can contribute to a better understanding of complex structures. In this talk I will present two examples. The first is related to the investigation of the highly intricate pore structure of dental cements; the second is related to a recent study of the encapsulation of the HBsAg protein, used in the Hepatitis B vaccine, into the SBA-15 adjuvant. I will also give a brief overview in how solid-state techniques can in general be used in studying the encapsulation process and the release of drugs.
Please contact Lora Davis (574-6308) for building access.
About the Speaker:
Heloisa N. Bordallo is the leader of the Dynamics Studies by Neutron Scattering group in the Neutrons and X-rays section at the Niels Bohr Institute. Her work focuses on the interplay between structure, dynamics, and function in hydrogenous materials using a combination of inelastic neutron scattering and imaging techniques. She has a joint appointment with the European Spallation Source and is the scientific leader of the MIRACLES backscattering instrument project. The spectrometer was recently approved for construction and will be built at ESS in collaboration with ESS-Bilbao in Spain.