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Advanced nanopore measurements allow structural probing of molecules with high spatial and temporal resolution. We report high signal-to-noise, 1-10 MHz bandwidth, translocation measurements of the multi-state folding of heme protein…

Biological Physics · Physics 2025-12-18 Kyril Kavetsky , Sabine Hong , Chih-Yuan Lin , Roger Yang , Marija Drndic

The relatively low concentration of pathogen indicators, such Salmonella, in composting sometimes causes a problem with detection when using the conventional techniques. The presence of viable but non-culturable (VBNC) organisms is also a…

Quantitative Methods · Quantitative Biology 2014-04-22 N. M. Sunar , E. I. Stentiford , D. I. Stewart , L. A. Fletcher

Identifying and removing microplastics (MPs) from the environment is a global challenge. This study explores how the colloidal fraction of common MPs behave at aqueous interfaces of liquid crystal (LC) films. We observed polyethylene (PE)…

Soft Condensed Matter · Physics 2022-10-06 Fiona Mukherjee , Anye Shi , Xin Wang , Fengqi You , Nicholas L. Abbott

Bacterial microcompartments are large, roughly icosahedral shells that assemble around enzymes and reactants involved in certain metabolic pathways in bacteria. Motivated by microcompartment assembly, we use coarse-grained computational and…

Biological Physics · Physics 2019-05-07 Farzaneh Mohajerani , Michael F. Hagan

We investigate the temperature dependent phase behaviour of mixtures of poly(Nisopropylacrylamide) (pNIPAM) microgel colloids and a triblock copolymer (PEO-PPO-PEO) surfactant, which undergoes micellisation. Gelation in these systems…

Soft Condensed Matter · Physics 2021-04-12 S L Fussell , C P Royall , J S van Duijneveldt

Chemoreceptors McpB and McpC in Salmonella enterica have been reported to promote chemotaxis in LB motility-plate assays. Of the chemicals tested as potential effectors of these receptors, the only response was towards L-cysteine and its…

Molecular Networks · Quantitative Biology 2013-04-16 Milena D. Lazova , Mitchell T. Butler , Thomas S. Shimizu , Rasika M. Harshey

Microorganisms are ubiquitous in nature and technology. They inhabit diverse environments ranging from small river tributaries and lakes to oceans, as well as wastewater treatment plants and food manufacturing. In many of these…

Self-propulsion (SP) is a main feature of active particles (AP), such as bacteria or biological micromotors, distinguishing them from passive colloids. A renowned consequence of SP is accumulation at static interfaces, even in the absence…

Soft Condensed Matter · Physics 2017-09-12 U. Marini Bettolo Marconi , A. Sarracino , C. Maggi , A. Puglisi

Hydrogels are promising systems for separation applications due to their structural characteristics (i.e. hydrophilicity and porosity). In our study, we investigate the permeation of suspensions of rigid latex particles of different sizes…

The structure of spherical micelles of the diblock poly(styrene-block-acrylic acid) [PS-b-PA] copolymer in water was investigated up to concentrations where the polyelectrolyte coronal layers have to shrink and/or interpenetrate in order to…

Soft Condensed Matter · Physics 2009-11-10 A. V. Korobko , W. Jesse , A. Lapp , S. U. Egelhaaf , J. R. C. van der Maarel

To accomplish relatively complex tasks, in Internet of Bio-Nano Things (IoBNT), information collected by different nano-machines (NMs) is usually sent via multiple-access channels to fusion centers (FCs) for further processing. Relying on…

Information Theory · Computer Science 2024-02-27 Weidong Gao , Lu Shi , Lie-Liang Yang

We use Principal Component Analysis (PCA) to study the gas dynamics in numerical simulations of typical MCs. Our simulations account for the non-isothermal nature of the gas and include a simplified treatment of the time-dependent gas…

Solar and Stellar Astrophysics · Physics 2015-06-18 Erik Bertram , Rahul Shetty , Simon C. O. Glover , Ralf S. Klessen , Julia Roman-Duval , Christoph Federrath

With renewed interest in CO2 separations, carbon molecular sieving (CMS) membrane performance evaluation requires diffusion coefficients as inputs to have reliable estimate of the permeability. An optimal material is desired to have both…

Soft Condensed Matter · Physics 2023-11-13 Subhadeep Dasgupta , Arun K. S , K. Ganapathy Ayappa , Prabal K. Maiti

Differential shrinkage in particulate quasi-brittle materials causes microcracking which reduces durability in these materials by increasing their mass transport properties. A hydro-mechanical three-dimensional periodic network approach was…

Materials Science · Physics 2017-10-13 Ignatios Athanasiadis , Simon J. Wheeler , Peter Grassl

The microstructure and electrical conductivity of suspensions of multi-walled carbon nanotubes (MWCNTs) in binary liquid mixtures water-1-Cyclohexyl-2-pyrrolidone (CHP) were studied in the heating and cooling cycles. The concentration of…

Mesoscale and Nanoscale Physics · Physics 2013-04-23 O. Deriabina , N. Lebovka , L. Bulavin , A. Goncharuk

We study the permeability and selectivity (`permselectivity') of model membranes made of polydisperse polymer networks for molecular penetrant transport, using coarse-grained, implicit-solvent computer simulations. The permeability…

Soft Condensed Matter · Physics 2020-09-30 Won Kyu Kim , Richard Chudoba , Sebastian Milster , Rafael Roa , Matej Kanduc , Joachim Dzubiella

We have developed a poly(dimethylsiloxane) (PDMS) microfluidic chip to study the directional drying of a colloidal dispersion confined in a channel. Our measurements on a dispersion of silica nanoparticles once again revealed the…

Soft Condensed Matter · Physics 2024-01-11 Hrishikesh Pingulkar , Sonia Maréchal , Jean-Baptiste Salmon

An accurate method for enumerating pathogen indicators, such as Escherichia coli (E. coli), and Salmonella spp. is important for assessing the safety of compost samples. This study aimed to determine the occurrence of pathogen indicators in…

Quantitative Methods · Quantitative Biology 2014-04-15 N. M. Sunar , D. I. Stewart , E. I. Stentiford , L. A. Flecther

Widely available vegetable oils were readily derivatized into chemically pure ABn-type monomers (n = 2 or 3). Their polymerization led to unprecedented hyperbranched polyesters. Four different AB2/AB3-type monomers bearing one A-type methyl…

Applied Physics · Physics 2019-11-19 Blandine Testud , Didier Pintori , Etienne Grau , Daniel Taton , Henri Cramail

Complex organic molecules (COMs) have been detected in the gas-phase in cold and lightless molecular cores. Recent solid-state laboratory experiments have provided strong evidence that COMs can be formed on icy grains through…

Solar and Stellar Astrophysics · Physics 2020-10-21 D. Qasim , G. Fedoseev , K. -J. Chuang , V. Taquet , T. Lamberts , J. He , S. Ioppolo , E. F. van Dishoeck , H. Linnartz