- Microstructure and mechanical properties
- Microfluidic and Bio-sensing Technologies
- MXene and MAX Phase Materials
- 2D Materials and Applications
- High-Velocity Impact and Material Behavior
- High-pressure geophysics and materials
- Metal and Thin Film Mechanics
- Graphene research and applications
- Machine Learning in Materials Science
- Ion-surface interactions and analysis
- Electrohydrodynamics and Fluid Dynamics
- Ferroelectric and Negative Capacitance Devices
- 3D Printing in Biomedical Research
- Cancer Cells and Metastasis
- Electrowetting and Microfluidic Technologies
- Orbital Angular Momentum in Optics
- Microfluidic and Capillary Electrophoresis Applications
- Adhesion, Friction, and Surface Interactions
- Electromagnetic Launch and Propulsion Technology
- Fusion materials and technologies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Advanced Memory and Neural Computing
- Advancements in Battery Materials
- Aluminum Alloys Composites Properties
- Energetic Materials and Combustion
Massachusetts General Hospital
2018-2024
Harvard University
2018-2024
Los Alamos National Laboratory
2023-2024
University of Connecticut
2020-2024
Indian Institute of Science Bangalore
2016-2021
Indian Institute of Technology Madras
2020
Indian Institute of Technology Kanpur
2019
Rice University
2019
Institute of Engineering
2017
Purdue University West Lafayette
2013-2016
MXenes are two-dimensional (2D) transition metal carbides and nitrides, invariably metallic in pristine form. While spontaneous passivation of their reactive bare surfaces lends unprecedented functionalities, consequently a many-folds increase number possible functionalized MXene makes characterization difficult. Here, we study the electronic properties this vast class materials by accurately estimating band gaps using statistical learning. Using easily available MXene, namely, boiling...
MXene, a two-dimensional layer of transition metal carbides/nitrides, showed great promise for energy storage, sensing, and electronic applications. MXene are chemically exfoliated from the bulk MAX phase; however, mechanistic understanding exfoliation subsequent functionalization these technologically important materials is still lacking. Here, using density-functional theory we show that Ti3C2 proceeds via HF insertion through edges Ti3AlC2 phase. Spontaneous dissociation termination edge...
The presence of ferroelectric polarization in 2D materials is extremely rare due to the effect surface depolarizing field. Here, we use first-principles calculations show largest out-of-plane observed a monolayer functionalized MXenes (Sc2CO2). switching this new class occurs through previously unknown intermediate antiferroelectric structure, thus establishing three states for applications low-dimensional nonvolatile memory. We that armchair domain interface acts as an 1D metallic nanowire...
Significance Isolation of sufficient numbers circulating tumor cells (CTCs) in cancer patients could provide an alternative to invasive biopsies, providing multianalyte cell-based biomarkers that are not available from current plasma DNA sequencing. Given the average prevalence at one CTC per billion blood cells, very large volumes must be screened enough CTCs for reliable clinical applications. By creating ultrahigh-throughput magnetic sorter, we demonstrate efficient removal leukocytes...
Two-dimensional titanium carbide MXenes, Ti3C2Tx, possess high surface area coupled with metallic conductivity and potential for functionalization. These properties make them especially attractive the highly sensitive room-temperature electrochemical detection of gas analytes. However, these extraordinary materials have not been thoroughly investigated volatile organic compounds (VOCs), many which hold relevance disease diagnostics environmental protection. Furthermore, insufficient...
Abstract Lack of rigorous reproducibility and validation are significant hurdles for scientific development across many fields. Materials science, in particular, encompasses a variety experimental theoretical approaches that require careful benchmarking. Leaderboard efforts have been developed previously to mitigate these issues. However, comprehensive comparison benchmarking on an integrated platform with multiple data modalities perfect defect materials is still lacking. This work...
Plasmonic nanostructures support strong electromagnetic field enhancement or optical "hot spots" that are accompanied by local heat generation. This heating effect is generally seen as an obstacle to stable trapping of particles on a plasmonic substrate. In this work, instead treating the hindrance, we utilized collective photoinduced nanostructure array for high-throughput nanostructured The combined with ac electric less than 100 kHz, which results in creation electrothermal microfluidic...
Rare CTC clusters can be purified intact from large blood volumes with a continuous three-stage non-equilibrium inertial separation array (NISA).
Functionalized MXene has emerged a promising class of two-dimensional materials having more than tens thousands compounds, whose uses may range from electronics to energy applications. Other the band gap, these properties rely on accurate position edges. Hence, synthesize MXenes for various applications, prior knowledge their edges at an absolute scale is essential; computing with conventional methods would take years all MXenes. Here, we develop machine learning model positioning GW level...
Complete chemical transformation of MAX (Nb<sub>4</sub>AlC<sub>3</sub>) into pristine MXene (Nb<sub>4</sub>C<sub>3</sub>) in the presence LiF.
Oxygen-functionalized MXene, M2CO2 (M = group III–V metals), are emergent formidable two-dimensional (2D) materials with a tantalizing possibility for device applications. Using first-principles calculations, we perform an intensive study on the stability of fully O-functionalized (M2CO2) MXenes. Depending position O atoms, can exist in two different structural phases. On one side atom occupies site which is exactly top metal from opposite side. other side, occupy either (BB′ phase) or C (CB...
An accurate modeling of gun barrel temperature variation over time is important to assess wear and the number shot fires needed reach cook-off. Using lumped parameter methods, an internal ballistics code was developed compute heat transfer for given ammunition parameters. Subsequently finite element method employed model history (temperature time). Simulations were performed a burst nine shots results found match satisfactorily corresponding experimental measurements. Wear or erosion during...