Ajith Pattammattel
HXN Beamline Scientist, Imaging & Microscopy Program, National Synchrotron Light Source II
Brookhaven National Laboratory
National Synchrotron Light Source II
Bldg. 743
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-6082
pattammattel@bnl.gov
I love being a chemist at nsls2, where I work as a beamline scientist in the imaging and microscopy program.My passion is to develop nanoscale x-ray spectromicroscopy techniques that can reveal new insights into the structure and composition of materials.I enjoy collaborating with other researchers and using the state-of-the-art facilities at nsls2 to advance the frontiers of science.
Expertise | Research | Education | Appointments | Publications
Expertise
I am a researcher with expertise in X-ray nano-imaging, a technique that uses high-resolution X-ray microscopy to visualize nanoscale structures and processes. I have experience in applying this technique to various fields, such as biology, materials science and archaeology. I have also used Nano-XANES, a spectroscopic method that reveals the chemical composition and oxidation state of nanomaterials by measuring their X-ray absorption near-edge structure. I am proficient in python, a programming language that I use for data analysis and visualization of X-ray nano-imaging and Nano-XANES results.
Research Activities
We are developing nanospectroscopy capabilities to study the chemical and structural properties of materials at the nanoscale. Nanospectroscopy is a family of techniques that combine infrared spectroscopy and scanning probe microscopy to achieve high sensitivity and spatial resolution . We are focusing on nano-XANES and nano-EXAFS, which are methods to probe the local electronic structure and coordination environment of selected elements in a sample . We are applying these techniques to characterize materials in chemistry, biogeochemistry, and environmental sciences, such as proteins, minerals, and pollutants. We are also implementing a python-based data collection and analysis workflow for spectromicroscopy studies, which will enable us to automate and optimize the experimental process and data processing .
- Development of a highly interactive spectro-microscopy analysis tool named XMIDAS for supervised and unsupervised deep learning
Education
- Ph.D. Chemistry, University of Connecticut, Storrs, CT
- Master of Chemistry (MSc), Cochin Univ. of Science and Technology, India
- Bachelor of Chemistry (BSc), Mahatma Gandhi University, India
Professional Appointments
- Postdoctoral Fellow at the University of California Merced, 2016-2018
- Postdoctoral Fellow at NSLS-II, 2018-2022
Selected Publications
- Pattammattel A, Tappero R, Ge M, Chu YS, Huang X, Gao Y, Yan H (2020) High-sensitivity nanoscale chemical imaging with hard x-ray nano-XANES. Science Advances 6:eabb3615. doi: 10.1126/sciadv.abb3615
- Pattammattel A, Leppert VJ, Aronstein P, Robinson M, Mousavi A, Sioutas C, Forman HJ, O'Day PA (2021) Iron speciation in particulate matter (PM2.5) from urban Los Angeles using spectro-microscopy methods. Atmospheric Environment 245:117988. doi: 10.1016/j.atmosenv.2020.117988
- Pattammattel A, Kumar CV (2015) Kitchen Chemistry 101: Multigram Production of High Quality Biographene in a Blender with Edible Proteins. Advanced Functional Materials 25:7088–7098. doi: 10.1002/adfm.201503247
- Pattammattel A, Tappero R, Gavrilov D, et al (2022) Multimodal X-ray nano-spectromicroscopy analysis of chemically heterogeneous systems. Metallomics 14:. https://doi.org/10.1093/mtomcs/mfac078
Brookhaven National Laboratory
National Synchrotron Light Source II
Bldg. 743
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-6082
pattammattel@bnl.gov
