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Research Quick Takes

Feb 29, 2024

SPIE Medical Imaging Conference

At the SPIE Medical Imaging conference, PhD students Yuan Shi (Halter Lab), Chengpei Li, Haley Stoner, and William Warner Th'17 Th'19 (Paulsen Lab) presented their work on image-guided surgery, including talks on "A surgical navigation framework for image-guided transoral robotic surgery" and "Intraoperative stereovision cortical surface segmentation using fast segment anything model," and posters on "Large MRI specimen submersion phantom design" and "Smart line detection and histogram-based approach to robust freehand ultrasound calibration."

Illustration showing projections of the crystal structure.

Feb 08, 2024

Materials for Hydrogen Storage

Professor Geoffroy Hautier is a co-author of "Small-pore hydridic frameworks store densely packed hydrogen" published in Nature Chemistry. The study reveals a way of achieving high volumetric gas storage in nanoporous materials. "Transforming water to hydrogen is a promising way to store energy, but hydrogen gas takes up a lot of space. Developing materials that can absorb reversibly and 'pack' this hydrogen in a tighter space would reduce the volume needed for storage," says Hautier.

The inflammatory response in bone

Jan 18, 2024

Embracing Ethical Research

First-year PhD student Amritha Anup Th'23 is first author of "Embracing ethical research: Implementing the 3R principles into fracture healing research for sustainable scientific progress" published in the Journal of Orthopaedic Research. Anup and her international co-authors, as well as professor Katie Hixon, explore recent advances "to replace, reduce, and refine [3R] animal experiments in musculoskeletal, bone, and fracture healing research."

Nanodroplets graphic

Jan 11, 2024

Multiplex Ultrasound Imaging

Austin Van Namen Th'21, Sid Jandhyala Th'22, Catalina Spatarelu Th'22, and Professors Kim Samkoe and Geoff Luke are coauthors of "Multiplex Ultrasound Imaging of Perfluorocarbon Nanodroplets Enabled by Decomposition of Postvaporization Dynamics" published in Nano Letters. The paper describes a method to use phase-changing nanodroplets as ultrasound contrast agents for imaging multiple biomarkers simultaneously.

ENDO GIA stapler

Jan 11, 2024

A Better, Safer Surgical Stapler

Professors Ethan Murphy and Ryan Halter, and PhD student Harsha Devaraj, along with Medtronic collaborators, coauthored "Development of an Electrical Impedance Tomography Coupled Surgical Stapler for Tissue Characterization" published in IEEE Transactions on Biomedical Engineering. The featured article investigates the incorporation of electrical impedance tomography into a surgical stapler to improve outcomes. Further studies are planned based on the promising results.

Biosensors figure

Jan 11, 2024

3D-Printed Tissue-Integrated Biosensors

Researchers Anand Tiwari and Sreejith Panicker, PhD students Julia Huddy and Md Saifur Rahman, and Professors Will Scheideler and Katie Hixon coauthored "Biocompatible 3D Printed MXene Microlattices for Tissue-Integrated Antibiotic Sensing" published in Advanced Materials Technologies. The study developed new electrode materials for 3D-printed porous electrochemical biosensors to monitor antibiotic release in tissue engineering scaffolds.

Clement Nyanhongo at NeurIPS 2023

Jan 04, 2024

AI for Open Science

PhD students Gregory Hyde, Chase Yakaboski, and Clement Nyanhongo '17 Th'18 (pictured) presented on "AI for Open Science: A Multi-Agent Perspective for Ethically Translating Data to Knowledge" at the 37th Conference on Neural Information Processing Systems in New Orleans. "There were over 10,000 attendees, and some of the most accomplished researchers in our field. It was an inspiring week, and we're hopeful to continue Dartmouth's presence there next year," said Yakaboski.

Inverse Pole Figure

Jan 04, 2024

Advancing Magnet Manufacturing

Thomas Keller Th'23 and Professor Ian Baker, in collaboration with Professor Wen Chen and Wuxian Yang at UMass Amherst, co-authored "Additive manufacturing of Mn-Al permanent magnets via laser powder bed fusion" published in Materialia. "We produced rare-earth-free permanent magnets with enhanced performance and a novel microstructure—a great step toward more sustainable electric motors," said Keller.

Dec 14, 2023

Minimizing Climate Uncertainty

Professor Hélène Seroussi is first author on "Insights into the vulnerability of Antarctic glaciers from the ISMIP6 ice sheet model ensemble and associated uncertainty" published in The Cryosphere. "These results come from an international effort that I led to understand the sources of uncertainty in projections of ice sheet contribution to sea level rise, and highlight the need to continue improving ice flow models," says Seroussi.

Professor Ian Baker

Dec 14, 2023

Machine Learning for Better Materials

Professor Ian Baker is a co-author of "Quantitative three-dimensional imaging of chemical short-range order via machine learning enhanced atom probe tomography" published in Nature Communications. The article presents an approach "to break the inherent resolution limits of atom probe tomography" and "help design future high-performance materials."

Using an iPhone to produce accurate high-density EEG scans for electrode localization

Dec 14, 2023

3D iPhone Scanning for EEG

Alums Alicia Everitt Th'19 and Haley Richards Th'22 are first authors on "EEG electrode localization with 3D iPhone scanning using point-cloud electrode selection" accepted for publication by the Journal of Neural Engineering. The authors, including Professors Ryan Halter and Ethan Murphy, present a method "using an iPhone to produce accurate high-density EEG scans for electrode localization—providing a needed portable and inexpensive solution," says Murphy.

ACS Appl Electron Mater cover

Dec 07, 2023

Piezoelectric Energy Harvesting

Andrew Closson Th'23, Research Associate Zhe Xu, Daniella Kubiak '20, Billy Jin Th'23, and Professor John Zhang are co-authors of "All-Electrospun Piezoelectric Energy Harvesting for Leadless Pacemakers" published in ACS Applied Electronic Materials, with an image by Thayer Graphic Designer Patricio Sarzosa accepted for the cover.

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