This review describes recent scientific advances in the context of culinary arts. It is written as a menu, starting with physics drinks, followed by main course, and ending complex desserts. Recent discoveries are reviewed, particularly fluid mechanics soft matter physics, their relevance to food science highlighted. Many phenomena like Cheerios effect, coffee-ring Brazil nut Leidenfrost Marangoni effect described illustrated epicurean examples.

Unicellular microscopic organisms living in aqueous environments outnumber all other creatures on Earth. A large proportion of them are able to self-propel fluids with a vast diversity swimming gaits and motility patterns. In this paper we present biophysical survey the available experimental data produced date characteristics motile behaviour unicellular microswimmers. We assemble from literature empirical four broad categories organisms: bacteria (and archaea), flagellated eukaryotes,...

One approach to quantifying biological diversity consists of characterizing the statistical distribution specific properties a taxonomic group or habitat. Microorganisms living in fluid environments, and for whom motility is key, exploit propulsion resulting from rich variety shapes, forms, swimming strategies. Here, we explore variability speed unicellular eukaryotes based on published data. The data naturally partitions into that flagellates (with small number flagella) ciliates tens...

Abstract Active systems such as microorganisms and self-propelled particles show a plethora of collective phenomena, including swarming, clustering, phase separation. Control over the propulsion direction switchability interactions between individual units may open new avenues in designing materials from within. Here, we present particle system, consisting half-gold-coated titania (TiO 2 ) particles, which can quickly on-demand reverse direction, by exploiting different photocatalytic...

Manipulation of viscous liquids is an essential kitchen activity - from pouring golden syrup onto a pancake to decorating cake with whipped cream frosting, streaming ketchup on top French fries dispensing molten chocolate strawberry. Typical viscosities in these and many other flows, the heights which streams are dispensed, make such jets susceptible coiling instability. Indeed, thin thread poured maple source fascination for children adults alike, whereas folding stream squeezed out plastic...

There is currently no experimental technique available to probe spatially resolved rotational diffusion of nanoparticles in the vicinity a wall. We present first study small spherical colloids, using dynamic evanescent wave scattering. A setup used where vector components parallel and perpendicular wall can be varied independently, an expression derived for cumulant intensity correlation function VH geometry optically anisotropic spheres. The results are agreement with theoretical...

Using a fully analytical theory, we compute the leading order corrections to translational, rotational and translation-rotation coupling mobilities of an arbitrary axisymmetric particle immersed in Newtonian fluid moving near elastic cell membrane that exhibits resistance towards stretching bending. The frequency-dependent mobility are expressed as general relations involving separately particle's shape-dependent bulk shape-independent parameters such membrane-particle distance, orientation...

In this article we extend recent experimental developments [Rogers et al., Phys. Rev. Lett., 2012, 109, 098305] by providing a suitable theoretical framework for the derivation of exact expressions first cumulant (initial decay rate) correlation function measured in Evanescent Wave Dynamic Light Scattering (EWDLS) experiments. We focus on dilute suspension optically anisotropic spherical Brownian particles diffusing near planar hard wall. such system, translational and rotational diffusion...

The diffusion coefficients of globular and fully unfolded proteins can be predicted with high accuracy solely from their mass or chain length. However, this approach fails for intrinsically disordered (IDPs) containing structural domains. We propose a rapid predictive methodology estimating the IDPs. uses accelerated conformational sampling based on self-avoiding random walks includes hydrodynamic interactions between coarse-grained protein subunits, modeled using generalized...

The hydrodynamic flow field generated by self-propelled active particles and swimming microorganisms is strongly altered the presence of nearby boundaries in a viscous flow. Using simple model three-linked sphere swimmer, we show that trajectories near no-slip wall reveal various scenarios motion depending on initial orientation distance separating swimmer from wall. We find can either be trapped wall, completely escape, or perform an oscillatory gliding at constant mean height above...

Geometric confinements are frequently encountered in soft matter systems and particular significantly alter the dynamics of swimming microorganisms viscous media. Surface-related effects on motility microswimmers can lead to important consequences a large number biological systems, such as biofilm formation, bacterial adhesion microbial activity. On basis low-Reynolds-number hydrodynamics, we explore state diagram three-sphere microswimmer under channel confinement slit geometry fully...

The navigation of microrobots in complex flow environments is controlled by rheotaxis, the reorientation with respect to gradients. Here, we demonstrate how payloads can be exploited enhance motion against flows. Using fully resolved hydrodynamic simulations, mechanisms are described that allow different shapes reorient upstream. We find cargo pullers fastest at most strengths but pushers feature a nontrivial optimum as function counterflow strength. Moreover, rheotactic performance...

We use the image solution technique to compute leading order frequency-dependent self-mobility function of a small solid particle moving perpendicular surface spherical capsule whose membrane possesses shearing and bending rigidities. Comparing our results with those obtained earlier for an infinitely extended planar elastic membrane, we find that curvature leads appearance prominent additional peak in mobility. This is attributed fact shear resistance curved involves contribution from...

We study theoretically and numerically the coupling rotational hydrodynamic interactions between spherical particles near a planar elastic membrane that exhibits resistance towards shear bending. Using combination of multipole expansion Faxen's theorems, we express frequency-dependent mobility functions as power series ratio particle radius to distance from for self mobilities, interparticle pair mobilities. In quasi-steady limit zero frequency, find shear- bending-related contributions...

Abstract. Geometric confinements are frequently encountered in the biological world and strongly affect stability, topology, transport properties of active suspensions viscous flow. Based on a far-field analytical model, low-Reynolds-number locomotion self-propelled microswimmer moving inside clean drop or covered with homogeneously distributed surfactant, is theoretically examined. The interfacial stresses induced by surfactant described well-established Boussinesq-Scriven constitutive...

Adaptive transport networks are known to contain loops when subject hydrodynamic fluctuations. However, fluctuations no guarantee that a loop will form, as shown by loop-free driven oscillating flows. We provide complete stability analysis of the dynamical behavior any formed fluctuating find threshold for involves an interplay geometric constraints and forcing mapped constant components. Loops require fluctuation in relative size flux between nodes, not just temporal variation at given...

In order to interpret measured intensity autocorrelation functions obtained in evanescent wave scattering, their initial decay rates have been analyzed recently [P. Holmqvist, J. K. G. Dhont, and P. R. Lang, Phys. Rev. E 74, 021402 (2006)10.1103/PhysRevE.74.021402; B. Cichocki, E. Wajnryb, Blawzdziewicz, Chem. 132, 074704 (2010)10.1063/1.3305328; W. Swan F. Brady, 135, 014701 (2011)]10.1063/1.3604530. A theoretical analysis of the longer time dependence functions, beyond decay, is still...

Elastic channels are an important component of many soft matter systems, in which hydrodynamic interactions with confining membranes determine the behavior particles flow. In this work, we derive analytical expressions for Green's functions associated to a point-force (Stokeslet) directed parallel or perpendicular axis elastic cylindrical channel exhibiting resistance against shear and bending. We then compute leading order self- pair mobility on cylinder axis, finding that mobilities...

Hydrodynamic interactions with confining boundaries often lead to drastic changes in the diffusive behaviour of microparticles suspensions. For axially symmetric particles, earlier numerical studies have suggested a simple form near-wall diffusion matrix which depends on distance and orientation particle respect wall, is usually calculated numerically. In this work, we derive explicit analytical formulae for dominant correction bulk tensor an colloidal due presence nearby no-slip wall. The...

Abstract DNA in cells is organized negatively supercoiled loops. The resulting torsional and bending strain allows to adopt a surprisingly wide variety of 3-D shapes. This interplay between negative supercoiling, looping, shape influences how stored, replicated, transcribed, repaired, likely every other aspect activity. To understand the consequences supercoiling curvature on hydrodynamic properties DNA, we submitted 336 bp 672 minicircles analytical ultracentrifugation (AUC). We found that...

Guiding active microswimmers by external fields to requested target locations is a promising strategy realize complex transport on the microscale. To this end, one possibility consists of attaching orientable passive components. Accordingly, we analyze theoretically, using minimal model, dynamics microswimmer when rigidly attached tangentially (significantly larger) microplatelet, here represented thin circular disk. On way, determine flow field in whole space induced Stokeslet that located...

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In this paper, we derive analytical expressions for the leading-order hydrodynamic mobility of a small solid particle undergoing motion tangential to nearby large spherical capsule whose membrane possesses resistance toward shearing and bending. Together with results obtained in first part [Daddi-Moussa-Ider Gekle, Phys. Rev. E 95, 013108 (2017)], where axisymmetric perpendicular is considered, solution general problem thus determined. We find that induces low-frequency peak self-mobility,...