186 citations · 652 across the 20 of their papers we have counts for
20 papers
Characterizing emergent multiscale dynamics in colloidal nanoparticle gels
William D. Brackett, Zachary M. Sherman, Felix Lehmkühler +2
Colloidal gels assembled from nanoparticles (NPs) are a versatile class of soft network-based materials capable of rich dynamic, mechanical, and even optical or magnetic responses…
SAM: Task-Adaptive SAM with Physics-Guided Rewards
Kamyar Barakati, Utkarsh Pratiush, Sheryl L. Sanchez +5
Image segmentation is a critical task in microscopy, essential for accurately analyzing and interpreting complex visual data. This task can be performed using custom models trained…
Plasmonic Metal Oxide Nanocrystals as Building Blocks for Infrared Metasurfaces
Woo Je Chang, Allison M. Green, Zarko Sakotic +3
Based on experimental and simulation methods we helped develop, we are advancing mechanistic understanding of how self-assembled NC metamaterials can produce distinctive near- and…
Morphological Control of Bundled Actin Networks Subject to Fixed-Mass Depletion
James Clarke, Lauren Melcher, Anne D. Crowell +10
Depletion interactions are thought to significantly contribute to the organization of intracellular structures in the crowded cytosol. The strength of depletion interactions depend…
Dynamics of equilibrium linked colloidal gels
Taejin Kwon, Tanner A. Wilcoxson, Delia J. Milliron +1
Colloids that attractively bond to only a few neighbors (e.g., patchy particles) can form equilibrium gels with distinctive dynamic properties that are stable in time. Here, we use…
Depletion-Driven Morphological Control of Bundled Actin Networks
James Clarke, Francis Cavanna, Anne D. Crowell +10
The actin cytoskeleton is a semiflexible biopolymer network whose morphology is controlled by a wide range of biochemical and physical factors. Actin is known to undergo a phase tr…
Assembling Inorganic Nanocrystal Gels
Allison M. Green, Charles K. Ofosu, Jiho Kang +3
Inorganic nanocrystal gels retain distinct properties of individual nanocrystals while offering tunable, network structure-dependent characteristics. We review different mechanisms…
Contact conductance governs metallicity in conducting metal oxide nanocrystal films
Corey M. Staller, Stephen L. Gibbs, Xing Yee Gan +4
In bulk semiconductor materials, the insulator-metal transition (IMT) is governed by the concentration of conduction electrons. Meanwhile, even when fabricated from metallic buildi…
Sculpting the plasmonic responses of nanoparticles by directed electron beam irradiation
Kevin M. Roccapriore, Shin-Hum Cho, Andrew R. Lupini +2
Spatial confinement of matter in functional nanostructures has propelled these systems to the forefront of nanoscience, both as a playground for exotic physics and quantum phenomen…
Effects of linker flexibility on phase behavior and structure of linked colloidal gels
Michael P. Howard, Zachary M. Sherman, Adithya N Sreenivasan +4
Colloidal nanocrystal gels can be assembled using a difunctional "linker" molecule to mediate bonding between nanocrystals. The conditions for gelation and the structure of the gel…
Wertheim's thermodynamic perturbation theory with double-bond association and its application to colloid-linker mixtures
Michael P. Howard, Zachary M. Sherman, Delia J. Milliron +1
We extend Wertheim's thermodynamic perturbation theory to derive the association free energy of a multicomponent mixture for which double bonds can form between any two pairs of th…
Separating physically distinct mechanisms in complex infrared plasmonic nanostructures via machine learning enhanced electron energy loss spectroscopy
Sergei V. Kalinin, Kevin M. Roccapriore, Shin Hum Cho +4
Low-loss electron energy loss spectroscopy (EELS) has emerged as a technique of choice for exploring the localization of plasmonic phenomena at the nanometer level, necessitating a…
Universal Gelation of Metal Oxide Nanocrystals via Depletion Attractions
Camila A. Saez Cabezas, Zachary M. Sherman, Michael P. Howard +6
Nanocrystal gelation provides a powerful framework to translate nanoscale properties into bulk materials and to engineer emergent properties through the assembled microstructure. H…
Structure and phase behavior of polymer-linked colloidal gels
Michael P. Howard, Ryan B. Jadrich, Beth A. Lindquist +4
Low-density "equilibrium" gels that consist of a percolated, kinetically arrested network of colloidal particles and are resilient to aging can be fabricated by restricting the num…
Intrinsic Optical and Electronic Properties from Quantitative Analysis of Plasmonic Semiconductor Nanocrystal Ensemble Optical Extinction
Stephen L. Gibbs, Corey M. Staller, Ankit Agrawal +3
The optical extinction spectra arising from localized surface plasmon resonance in doped semiconductor nanocrystals (NCs) have intensities and lineshapes determined by free charge…
Gelation of Plasmonic Metal Oxide Nanocrystals by Polymer-Induced Depletion-Attractions
Camila A. Saez Cabezas, Gary K. Ong, Ryan B. Jadrich +4
Gelation of colloidal nanocrystals (NCs) emerged as a strategy to preserve inherent nanoscale properties in multiscale architectures. Yet available gelation methods still struggle…
Tuning Nanocrystal Surface Depletion by Controlling Dopant Distribution as a Route Toward Enhanced Film Conductivity
Corey M. Staller, Zachary L. Robinson, Ankit Agrawal +5
Electron conduction through bare metal oxide nanocrystal (NC) films is hindered by surface depletion regions resulting from the presence of surface states. We control the radial do…
Impacts of Surface Depletion on the Plasmonic Properties of Doped Semiconductor Nanocrystals
Omid Zandi, Ankit Agrawal, Alex B. Shearer +4
Degenerately doped semiconductor nanocrystals (NCs) exhibit a localized surface plasmon resonance (LSPR) in the infrared range of the electromagnetic spectrum. Unlike metals, semic…
Interactions and design rules for assembly of porous colloidal mesophases
Beth A. Lindquist, Sayantan Dutta, Ryan B. Jadrich +2
Porous mesophases, where well-defined particle-depleted 'void' spaces are present within a particle-rich background fluid, can be self-assembled from colloidal particles interactin…
On the Formation of Equilibrium Gels via a Macroscopic Bond Limitation
Beth A. Lindquist, Ryan B. Jadrich, Delia J. Milliron +1
Restricting the number of attractive physical "bonds" that can form between particles in a fluid suppresses the usual demixing phase transition to very low particle concentrations,…