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Articles 1 - 30 of 51
Full-Text Articles in Physics
Stability Of Dna-Linked Nanoparticle Crystals I: Effect Of Linker Sequence And Length, Francis Starr, Fernando Vargas Lara
Stability Of Dna-Linked Nanoparticle Crystals I: Effect Of Linker Sequence And Length, Francis Starr, Fernando Vargas Lara
Francis Starr
No abstract provided.
Theoretical Description Of A Dna-Linked Nanoparticle Self-Assembly, Chia Wei Hsu, Francesco Sciortino, Francis Starr
Theoretical Description Of A Dna-Linked Nanoparticle Self-Assembly, Chia Wei Hsu, Francesco Sciortino, Francis Starr
Francis Starr
No abstract provided.
Rapid Transport Of Water Via A Carbon Nanotube Syringe, Jose Rivera, Francis Starr
Rapid Transport Of Water Via A Carbon Nanotube Syringe, Jose Rivera, Francis Starr
Francis Starr
No abstract provided.
Morphology And Transport Properties Of Two-Dimensional Sheet Polymers, Scott Knauert, Jack Douglas, Francis Starr
Morphology And Transport Properties Of Two-Dimensional Sheet Polymers, Scott Knauert, Jack Douglas, Francis Starr
Francis Starr
Whereas there has been extensive theoretical and experimental investigation of the properties of linear polymer chains in solution, there has been far less work on sheet-like polymers having 2D connectivity and 3D crumpled or collapsed shapes caused by thermal fluctuations, attractive self-interactions, or both. Sheet-like polymers arise in a variety of contexts ranging from self-assembled biological membranes (e.g., the spectrin network of red blood cells, microtubules, etc.) to nanocomposite additives to polymers (carbon nanotubes, graphene, and clay sheets) and polymerized monolayers. We investigate the equilibrium properties of this broad class of polymers using a simple model of a sheet polymer …
Current Issues In Research On Structure-Property Relationships In Polymer Nanocomposites, J. Jancar, J. Douglas, Francis Starr, S. Kumar, P. Cassagnau, A. Lesser, S. Sternstein, M. Buehler
Current Issues In Research On Structure-Property Relationships In Polymer Nanocomposites, J. Jancar, J. Douglas, Francis Starr, S. Kumar, P. Cassagnau, A. Lesser, S. Sternstein, M. Buehler
Francis Starr
No abstract provided.
Universal Two-Step Crystallization Of Dna-Functionalized Nanoparticles, Wei Dai, Sanat K. Kumar, Francis W. Starr
Universal Two-Step Crystallization Of Dna-Functionalized Nanoparticles, Wei Dai, Sanat K. Kumar, Francis W. Starr
Francis Starr
No abstract provided.
Valency Dependence Of Polymorphism And Polyamorphism In Dna-Functionalized Nanoparticles, Wei Dai, Chia Wei Hsu, Francesco Sciortino, Francis W. Starr
Valency Dependence Of Polymorphism And Polyamorphism In Dna-Functionalized Nanoparticles, Wei Dai, Chia Wei Hsu, Francesco Sciortino, Francis W. Starr
Francis Starr
Nanoparticles (NP) functionalized with single-stranded DNA (ssDNA) offer a route to custom-designed, self- assembled nanomaterials with potentially unusual properties. The bonding selectivity of DNA guarantees one-to-one binding to form double-stranded DNA (dsDNA), and an appropriate base sequence results in head-to-tail binding linking NP into networks. We explore the phase behavior and structure of a model for NP functionalized with between 3 and 6 short ssDNA through simulations of a coarse-grained molecular model, allowing us to examine both the role of the number of attached strands (valency) and their relative orientations. The NP assemble into networks where the number of NP …
Appearance Of A Fractional Stokes-Einstein Relation In Water And A Structural Interpretation Of Its Onset, L. Xu, F. Mallamace, Z. Yan, Francis W. Starr, S. V. Buldyrev, H. E. Stanley
Appearance Of A Fractional Stokes-Einstein Relation In Water And A Structural Interpretation Of Its Onset, L. Xu, F. Mallamace, Z. Yan, Francis W. Starr, S. V. Buldyrev, H. E. Stanley
Francis Starr
The Stokes–Einstein relation has long been regarded as one of the hallmarks of transport in liquids. It predicts that the self-diffusion constant D is proportional to (τ/T)−1, where τ is the structural relaxation time and T is the temperature. Here, we present experimental data on water confirming that, below a crossover temperature T× ≈ 290 K, the Stokes– Einstein relation is replaced by a ‘fractional’ Stokes–Einstein relation D ∼ (τ/T)−ζ with ζ ≈ 3/5 (refs 1–6). We interpret the microscopic origin of this crossover by analysing the OH- stretch region of the Fourier transform infrared spectrum over a temperature range …
Model For Reversible Nanoparticle Assembly In A Polymer Matrix, A. Rahedi, J. Douglas, Francis Starr
Model For Reversible Nanoparticle Assembly In A Polymer Matrix, A. Rahedi, J. Douglas, Francis Starr
Francis Starr
No abstract provided.
Hierarchies Of Networked Phases Induced By Multiple Liquid-Liquid Critical Points, C. W. Hsu, J. Largo, F. W. Sciortino, Francis Starr
Hierarchies Of Networked Phases Induced By Multiple Liquid-Liquid Critical Points, C. W. Hsu, J. Largo, F. W. Sciortino, Francis Starr
Francis Starr
No abstract provided.
The Effect Of Nanoparticle Shape On Polymer-Nanocomposite Rheology And Tensile Strength, Scott Knauert, Jack Douglas, Francis Starr
The Effect Of Nanoparticle Shape On Polymer-Nanocomposite Rheology And Tensile Strength, Scott Knauert, Jack Douglas, Francis Starr
Francis Starr
No abstract provided.
Breakdown Of The Stokes-Einstein Relation In Supercooled Water, P. Kumar, S. Buldyrev, S. Becker, P. Poole, Francis Starr, H. Stanley
Breakdown Of The Stokes-Einstein Relation In Supercooled Water, P. Kumar, S. Buldyrev, S. Becker, P. Poole, Francis Starr, H. Stanley
Francis Starr
No abstract provided.
Interaction Of Water With Cap-Ended Defective And Non-Defective Small Carbon Nanotubes, Jose L. Rivera, J. L. Rico, Francis W. Starr
Interaction Of Water With Cap-Ended Defective And Non-Defective Small Carbon Nanotubes, Jose L. Rivera, J. L. Rico, Francis W. Starr
Francis Starr
No abstract provided.
Connection Of Translational And Rotational Dynamical Heterogeneities With The Breakdown Of The Stokes-Einstein And Stokes-Einstein-Debye Relations In Water, M. G. Mazza, N. Giovambattista, H. E. Stanley, Francis W. Starr
Connection Of Translational And Rotational Dynamical Heterogeneities With The Breakdown Of The Stokes-Einstein And Stokes-Einstein-Debye Relations In Water, M. G. Mazza, N. Giovambattista, H. E. Stanley, Francis W. Starr
Francis Starr
No abstract provided.
Self-Assembling Dna Dendrimers: A Numerical Study, L. Largo, Francis Starr, F. Sciortino
Self-Assembling Dna Dendrimers: A Numerical Study, L. Largo, Francis Starr, F. Sciortino
Francis Starr
No abstract provided.
Effect Of Water-Wall Interaction Potential On The Properties Of Nanoconfined Water, P. Kumar, Francis W. Starr, S. V. Buldyrev, H. E. Stanley
Effect Of Water-Wall Interaction Potential On The Properties Of Nanoconfined Water, P. Kumar, Francis W. Starr, S. V. Buldyrev, H. E. Stanley
Francis Starr
No abstract provided.
Fractional Stokes-Einstein And Debye-Stokes-Einstein Relations In A Network Forming Liquid, S. Becker, P. Poole, Francis Starr
Fractional Stokes-Einstein And Debye-Stokes-Einstein Relations In A Network Forming Liquid, S. Becker, P. Poole, Francis Starr
Francis Starr
No abstract provided.
Model For Assembly And Gelation Of Four-Armed Dna Dendrimers, Francis Starr, Francesco Sciortino
Model For Assembly And Gelation Of Four-Armed Dna Dendrimers, Francis Starr, Francesco Sciortino
Francis Starr
No abstract provided.
Polarizable Contributions To The Surface Tension Of Liquid Water, J. L. Rivera, Francis W. Starr, P. Paricaud, P. T. Cummings
Polarizable Contributions To The Surface Tension Of Liquid Water, J. L. Rivera, Francis W. Starr, P. Paricaud, P. T. Cummings
Francis Starr
No abstract provided.
Relation Between Rotational And Translational Dynamic Heterogeneities In Water, M. Mazza, N. Giovambattista, Francis W. Starr, H. E. Stanley
Relation Between Rotational And Translational Dynamic Heterogeneities In Water, M. Mazza, N. Giovambattista, Francis W. Starr, H. E. Stanley
Francis Starr
No abstract provided.
Weak Correlations Between Local Density And Dynamics Near The Glass Transition, J. Conrad, Francis Starr, D. Weitz
Weak Correlations Between Local Density And Dynamics Near The Glass Transition, J. Conrad, Francis Starr, D. Weitz
Francis Starr
We perform experiments on two different dense colloidal suspensions with confocal microscopy to probe the relationship between local structure and dynamics near the glass transition. We calculate the Voronoi volume for our particles and show that this quantity is not a universal probe of glassy structure for all colloidal suspensions. We correlate the Voronoi volume to displacement and find that these quantities are only weakly correlated. We observe qualitatively similar results in a simulation of a polymer melt. These results suggest that the Voronoi volume does not predict dynamical behavior in experimental colloidal suspensions; a purely structural approach based on …
Thermodynamics, Structure, And Dynamics Of Water Confined Between Hydrophobic Plates, Francis Starr, P. Kumar, S. Buldyrev, N. Giovambattista, H. Stanley
Thermodynamics, Structure, And Dynamics Of Water Confined Between Hydrophobic Plates, Francis Starr, P. Kumar, S. Buldyrev, N. Giovambattista, H. Stanley
Francis Starr
No abstract provided.
Clusters Of Mobile Molecules In Supercooled Water, Nicolas Giovambattista, Sergey Buldyrev, H. Stanley, Francis Starr
Clusters Of Mobile Molecules In Supercooled Water, Nicolas Giovambattista, Sergey Buldyrev, H. Stanley, Francis Starr
Francis Starr
No abstract provided.
Spatially Heterogeneous Dynamics And The Adam-Gibbs Relation In The Dzugutov Liquid, Yeshitela Gebremichael, M Vogel, M Bergroth, Francis W. Starr, Sharon C. Glotzer
Spatially Heterogeneous Dynamics And The Adam-Gibbs Relation In The Dzugutov Liquid, Yeshitela Gebremichael, M Vogel, M Bergroth, Francis W. Starr, Sharon C. Glotzer
Francis Starr
No abstract provided.
Science And Engineering Of Nanoparticle-Polymer Composites: Insights From Computer Simulation, Francis W. Starr, Sharon C. Glotzer
Science And Engineering Of Nanoparticle-Polymer Composites: Insights From Computer Simulation, Francis W. Starr, Sharon C. Glotzer
Francis Starr
No abstract provided.
Dynamic Heterogeneities In Supercooled Water, Nicolas Giovambattista, Marco Mazza, Sergey V. Buldyrev, Francis W. Starr, H. Eugene Stanley
Dynamic Heterogeneities In Supercooled Water, Nicolas Giovambattista, Marco Mazza, Sergey V. Buldyrev, Francis W. Starr, H. Eugene Stanley
Francis Starr
No abstract provided.
Prediction Of Entropy And Dynamic Properties Of Water Below The Homogeneous Nucleation Temperature, Francis Starr, C. Angell, H. Stanley
Prediction Of Entropy And Dynamic Properties Of Water Below The Homogeneous Nucleation Temperature, Francis Starr, C. Angell, H. Stanley
Francis Starr
The behavior of thermodynamic and dynamic properties of liquid water at atmospheric pressure in the temperature range between the lower limit of supercooling (TH ≈ 235 K) and the onset of the glassy state at Tg has been the focus of much research, and many questions remain about the properties of water in this region. Since direct measurements on water in this temperature range remain largely infeasible, we use existing experimental measurements of the entropy, specific heat, and enthalpy outside this range to construct a possible form of the en- tropy in the “difficult-to-probe” region. Assuming that the entropy is …
Dynamics Of Deeply Supercooled Water, Francis W. Starr, C. A. Angell, E. La Nave, S. Sastry, A. Scala, F. Sciortino, H. E. Stanley
Dynamics Of Deeply Supercooled Water, Francis W. Starr, C. A. Angell, E. La Nave, S. Sastry, A. Scala, F. Sciortino, H. E. Stanley
Francis Starr
We review recent results on the connection between thermodynamics and dynamics in a model for water. We verify the Adam–Gibbs relation between entropy and dynamic properties using computer simulations, which allow direct access to the relevant properties. We combine experimental measurements of entropy with the Adam–Gibbs hypothesis to predict dynamic properties in deeply supercooled states, which are difficult to access experimentally. We find evidence suggesting that the glass transition temperature of water may be significantly higher than previously reported, but is still consistent with recent measurements. Finally, we discuss the hypothesis that the dynamical behavior of deeply supercooled water undergoes …
Stringlike Correlated Motion In The Dynamics Of Supercooled Polymer Melts, M. Aichele, Y. Gebremichael, Francis Starr, J. Baschnagel, S. C. Glotzer
Stringlike Correlated Motion In The Dynamics Of Supercooled Polymer Melts, M. Aichele, Y. Gebremichael, Francis Starr, J. Baschnagel, S. C. Glotzer
Francis Starr
No abstract provided.
Spatially Heterogeneous Dynamics Investigated Via A Time-Dependent Four-Point Density Correlation Function, N. Lacevic, T. B. Schroder, Francis W. Starr, S. C. Glotzer
Spatially Heterogeneous Dynamics Investigated Via A Time-Dependent Four-Point Density Correlation Function, N. Lacevic, T. B. Schroder, Francis W. Starr, S. C. Glotzer
Francis Starr
No abstract provided.