Article
Physics, Multidisciplinary
Attilio L. Stella, Aleksei Chechkin, Gianluca Teza
Summary: This passage discusses the occurrence of anomalous diffusion phenomena across different length scales, and introduces a specific form of decay related to the probability density function. It also explains the implications of this decay on the normalized cumulant generator, and provides examples related to second-order phase transition singularities in continuous time random walks. In the case of bias, scaling is limited to displacements in the drift direction, and there is no equilibrium analogue for the singularities.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Fluids & Plasmas
Yue Liu, Dahai He
Summary: Based on the geometrization of dynamics and self-consistent phonon theory, an analytical approach is developed to derive the Lyapunov time for general nonlinear lattices. The universal scaling behavior of the Lyapunov time with the nonintegrability strength is observed for the quasi-integrable regime, with the scaling exponent being the same as the thermalization time. This proportional relationship indicates how the thermalization process is related to the intrinsic chaotic property.
Article
Polymer Science
Takahiro Sato
Summary: A lattice theory is proposed for block copolymer solutions near the boundary between the micellization and liquid-liquid phase separation regions. A new kinetic process of micellization is suggested, where small concentrated-phase droplets are first formed and then transformed into micelles in the early stage of micellization. Furthermore, a unique ripening process is observed in the late stage of phase separation, where the growing concentrated-phase droplet size is proportional to the square root of the time.
Article
Physics, Fluids & Plasmas
Ronald Fisch
Summary: Heat-bath Monte Carlo simulations were used to study a 12-state discretized Heisenberg model with a type of random field. The results showed a sharp phase transition at a specific temperature, and below the critical temperature, the model exhibited long-range ferroelectric order. Additionally, peaks in the structure factor and specific heat were observed at the critical temperature.
Article
Chemistry, Physical
Ruonan Wu, Yanru Chen, Jing Zhou, Yebang Tan
Summary: A series of double-hydrophilic diblock copolymers of N-acryloylmorpholine (NAMO) and N-isopropylacrylamide (NIPAm) with varying degree of polymerization were synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization. These copolymers exhibited temperature sensitivity and solvent responsiveness, and showed potential as viscosity reducers and emulsifiers in heavy oil/water systems.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Polymer Science
Timothy P. Lodge, En Wang, Jiahao Zhu, Frank S. Bates
Summary: The self-assembly behavior of four polystyrene and poly(ethylene-alt-propylene) block copolymers in a selective solvent was studied. Spherical micelles were formed by all four polymers, with the symmetric triblock copolymer having the smallest micelle size. However, the asymmetric triblock copolymers did not form any specific packing arrangement. This result suggests that the two-layer corona of the asymmetric triblock copolymers may play a role in their self-assembly behavior. At higher concentrations, all four polymers adopted hexagonal packings before transitioning to lamellar structures.
Article
Polymer Science
Sergey Vyazovkin
Summary: The Jeziorny method replaces temperature values with corresponding time values in the isothermal Avrami plot to analyze nonisothermal crystallization data. However, this method is not applicable for nonisothermal data, as the intercept and slope of the plot cannot be interpreted as rate constant and Avrami exponent, respectively.
Review
Chemistry, Multidisciplinary
Roman Shugayev, Jagannath Devkota, Ki-Joong Kim, Patricia Cvetic, Paul Ohodnicki
Summary: Permittivity sensors play a critical role in bioscience, environmental, and industrial applications. This study proposes a novel approach to overcome the response time limit of plasmonic sensors by combining them with phase transition materials. The rapid sensing of CO2 and amplification of permittivity response demonstrated in this work hold promise for a wide range of real-time sensing and monitoring applications in biological and environmental processes.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Polymer Science
Nico Alleva, Katharina Eigen, David Y. W. Ng, Tanja Weil
Summary: We propose a simple and versatile method to purify and isolate DNA-polymer conjugates from various types of uncharged homo, random, or block copolymer families. Anion exchange chromatography is utilized for separation and recovery of excess unreacted polymer and oligonucleotide. With a high yield and efficient purification process, this method demonstrates its broad applicability for different polymer families and DNA block lengths.
Article
Polymer Science
Deborah Y. Liu, Daniel Krogstad
Summary: The study explores the use of ionic liquid as both a curing agent and a structure-directing agent in epoxy/BCP blends, achieving a wide range of self-assembled structures in the uncured blends, including hexagonally packed cylinders and lamellar structures. Many compositions undergo phase transitions during the curing process, with some transitions proving to be quite complex.
Article
Polymer Science
Pengyu Chen, Frank S. Bates, Kevin D. Dorfman
Summary: In this study, the feasibility of adding ABC triblock copolymers into a polymer system was investigated using self-consistent field theory. The results showed that the addition of a small amount of ISO could stabilize the GA morphology, but the phase window was relatively narrow. Designing the system to have comparable domain sizes enhanced the stability of GA against competing lamellae.
Article
Materials Science, Multidisciplinary
Xingyue Ma, Mingxing Chen, Jun -Ming Liu, Di Wu, Yurong Yang
Summary: The unexpected and extensive inverse electrocaloric effect (ECE) has been found in nonpolar orthorhombic, tetragonal, and cubic phases of halide and oxide perovskite at a wide temperature range. This inverse ECE, with temperature change of 8.6 K at room temperature, originates from the octahedral tilting related entropy change rather than the polarization entropy change. This discovery opens up a new horizon in the research of caloric effects and broadens the electrocaloric refrigeration ways with high efficiency.
Article
Polymer Science
Haohui Huo, Jie Liu, Senthil Kannan, Long Chen, Yimin Zhao, Lei Zhang, Gang Chang, Qilu Zhang, Feng Liu
Summary: This study presents the first example of protein-like multicompartment nanoparticles formed via self-assembly of a specifically designed 21-arm star polymer, PEG(PAA-b-PS)(20). The morphology of the MCNs is determined by the volume ratio of PS to PAA, and unique string structures composed of one-dimensional alignment of single-star polymers were observed for the first time. A new mechanism for the assembly of star polymers was proposed based on investigations under different conditions, suggesting potential applications in drug delivery and catalysis.
Article
Multidisciplinary Sciences
Nahuel Zamponi, Emiliano Zamponi, Sergio A. Cannas, Dante R. Chialvo
Summary: Evidence from models and experiments suggests that the networked structure observed in mitochondria emerges at the critical point of a phase transition controlled by fission and fusion rates. In this study, we provide a theoretical framework to interpret the scaling behavior of mitochondrial network quantities and validate it through experiments. The obtained scaling exponents are comparable with critical exponents from models and theory. Overall, we offer a universal description of the structural phase transition in mammalian mitochondria.
SCIENTIFIC REPORTS
(2022)
Article
Physics, Fluids & Plasmas
Shaweta Garg, Isha Dhiman
Summary: A single-channel totally asymmetric simple exclusion process with bulk particle attachment and detachment is studied, and continuum mean-field equations are used to obtain steady-state phase diagrams and density profiles via numerical solutions. The effects of various parameters, such as particle attachment rate and defect binding and unbinding rates, have been investigated, revealing the appearance of shocks in the steady state due to nonconserving dynamics. The impact of defect strength on shock position has been thoroughly examined through mean-field solutions validated by Monte Carlo simulations.
Article
Biochemistry & Molecular Biology
Laura E. Martinez, Joseph M. Hardcastle, Jeffrey Wang, Zachary Pincus, Jennifer Tsang, Timothy R. Hoover, Rama Bansil, Nina R. Salama
MOLECULAR MICROBIOLOGY
(2016)
Article
Multidisciplinary Sciences
Maira A. Constantino, Mehdi Jabbarzadeh, Henry C. Fu, Rama Bansil
Review
Pharmacology & Pharmacy
Rama Bansil, Bradley S. Turner
ADVANCED DRUG DELIVERY REVIEWS
(2018)
Article
Multidisciplinary Sciences
Clover Su, Medea Padra, Maira Alves Constantino, Sinan Sharba, Anders Thorell, Sara K. Linden, Rama Bansil
SCIENTIFIC REPORTS
(2018)
Article
Biophysics
Bogdan Barz, Bradley S. Turner, Rama Bansil, Brigita Urbanc
JOURNAL OF BIOLOGICAL PHYSICS
(2012)
Article
Chemistry, Physical
Minghai Li, Yongsheng Liu, Rama Bansil
JOURNAL OF CHEMICAL PHYSICS
(2010)
Article
Polymer Science
Yongsheng Liu, Julian D. Spring, Milos Steinhart, Rama Bansil
Article
Multidisciplinary Sciences
Jonathan P. Celli, Bradley S. Turner, Nezam H. Afdhal, Sarah Keates, Ionita Ghiran, Ciaran P. Kelly, Randy H. Ewoldt, Gareth H. McKinley, Peter So, Shyamsunder Erramilli, Rama Bansil
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2009)
Article
Multidisciplinary Sciences
Maira A. Constantino, Mehdi Jabbarzadeh, Henry C. Fu, Zeli Shen, James G. Fox, Freddy Haesebrouck, Sara K. Linden, Rama Bansil
SCIENTIFIC REPORTS
(2018)
Review
Immunology
Rama Bansil, Jonathan P. Celli, Joseph M. Hardcastle, Bradley S. Turner
FRONTIERS IN IMMUNOLOGY
(2013)
Meeting Abstract
Biochemistry & Molecular Biology
Katrina Lyon, Barkan Sidar, Clarice Burger, Thomas A. Sebrell, James Wilking, Rama Bansil, Diane Bimczok
Review
Microbiology
Rama Bansil, Maira A. Constantino, Clover Su-Arcaro, Wentian Liao, Zeli Shen, James G. Fox
Summary: Helicobacter spp., including the well-known human gastric pathogen H. pylori, can cause gastric diseases in humans and other mammals. They use multiple flagella to move across the gastric mucus layer and their swimming speed increases with an increasing number of flagella and a helical cell body shape. The swimming mechanism of H. suis with bipolar flagella is more complex than that of unipolar H. pylori, exhibiting multiple modes of flagellar orientation while swimming. The pH-dependent viscosity and gelation of gastric mucin significantly impact the motility of Helicobacter spp.
Meeting Abstract
Chemistry, Multidisciplinary
Rama Bansil, Karl Ludwig
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Materials Science, Composites
Rama Bansil, Joseph Hardcastle, Maira Constantino
EPITOANYAG-JOURNAL OF SILICATE BASED AND COMPOSITE MATERIALS
(2015)