http://prl.aps.org/ Recently published articles in Phys. Rev. Lett. in the Table of Content section "Soft Matter, Biological, and Interdisciplinary Physics" en-us Copyright (c) 2008 The American Physical Society 2008-05-07T08:09:22-04:00 assocpub@aps.org rss@aps.org hourly 4 2008-05-07T08:09:22-04:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevLett.100.188302 Author(s): Renat N. Khaliullin and Jay D. Schieber<br/>An analytic expression is proposed for the primitive-path length of entangled polymer chains. The expression is derived from statistical mechanics of a chain that is a random walk with randomly scattered entanglements. The only parameters are the number of Kuhn steps in the chain and a dimensionless...<br/>[Phys. Rev. Lett. 100, 188302] Published Mon May 05, 2008 Renat N. Khaliullin and Jay D. Schieber 2008-05-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.188302 Phys. Rev. Lett. 100, 188302 text/html article Physical Review Letters 100 18 2008-05-05T00:00:00-04:00 188302 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.188301 Author(s): B. A. Huisman, P. G. Bolhuis, and A. Fasolino<br/>We report Monte Carlo simulations of the self-assembly of supramolecular polymers based on a model of patchy particles. We find a first-order phase transition, characterized by hysteresis and nucleation, toward a solid bundle of polymers, of length much greater than the average gas phase length. We...<br/>[Phys. Rev. Lett. 100, 188301] Published Mon May 05, 2008 B. A. Huisman, P. G. Bolhuis, and A. Fasolino 2008-05-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.188301 Phys. Rev. Lett. 100, 188301 text/html article Physical Review Letters 100 18 2008-05-05T00:00:00-04:00 188301 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.188102 Author(s): Roberto Cerbino and Veronique Trappe<br/>We demonstrate the use of an ordinary white-light microscope for the study of the q-dependent dynamics of colloidal dispersions. Time series of digital video images are acquired in bright field with a fast camera, and image differences are Fourier analyzed as a function of the time delay between the...<br/><img src="http://prola.aps.org/graphics/prlsugg30x30.gif" width="30" height="30" alt="PRL Editors' Suggestion"/><br/>[Phys. Rev. Lett. 100, 188102] Published Mon May 05, 2008 Roberto Cerbino and Veronique Trappe 2008-05-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.188102 Phys. Rev. Lett. 100, 188102 text/html article Physical Review Letters 100 18 2008-05-05T00:00:00-04:00 188102 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.188101 Author(s): Johannes Berg<br/>In order to express specific genes at the right time, the transcription of genes is regulated by the presence and absence of transcription factor molecules. With transcription factor concentrations undergoing constant changes, gene transcription takes place out of equilibrium. In this Letter we disc...<br/><img src="http://prola.aps.org/graphics/prlsugg30x30.gif" width="30" height="30" alt="PRL Editors' Suggestion"/><br/>[Phys. Rev. Lett. 100, 188101] Published Mon May 05, 2008 Johannes Berg 2008-05-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.188101 Phys. Rev. Lett. 100, 188101 text/html article Physical Review Letters 100 18 2008-05-05T00:00:00-04:00 188101 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.178305 Author(s): Y. Hennequin, D. G. Aarts, J. O. Indekeu, H. N. Lekkerkerker, and D. Bonn<br/>We present confocal microscopy experiments on the wetting of phase-separated colloid-polymer mixtures. We observe that an unusually thick wetting layer of the colloid-rich phase forms at the walls of the glass container that holds the mixture. Because of the ultralow interfacial tension between the ...<br/>[Phys. Rev. Lett. 100, 178305] Published Fri May 02, 2008 Y. Hennequin, D. G. Aarts, J. O. Indekeu, H. N. Lekkerkerker, and D. Bonn 2008-05-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.178305 Phys. Rev. Lett. 100, 178305 text/html article Physical Review Letters 100 17 2008-05-02T00:00:00-04:00 178305 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.178304 Author(s): L. F. Rojas-Ochoa, R. Castañeda-Priego, V. Lobaskin, A. Stradner, F. Scheffold, and P. Schurtenberger<br/>We determine the structure of charge-stabilized colloidal suspensions at low ionic strength over an extended range of particle volume fractions using a combination of light and small angle neutron scattering experiments. The variation of the structure factor with concentration is analyzed within a o...<br/>[Phys. Rev. Lett. 100, 178304] Published Fri May 02, 2008 L. F. Rojas-Ochoa, R. Castañeda-Priego, V. Lobaskin, A. Stradner, F. Scheffold, and P. Schurtenberger 2008-05-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.178304 Phys. Rev. Lett. 100, 178304 text/html article Physical Review Letters 100 17 2008-05-02T00:00:00-04:00 178304 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.177801 Author(s): C. Pantalei, A. Pietropaolo, R. Senesi, S. Imberti, C. Andreani, J. Mayers, C. Burnham, and G. Reiter<br/>Measurements of the proton momentum distribution n(p) in water from ambient conditions to above the supercritical point are compared with theoretical calculations based on a recently developed polarizable water model. The n(p) along the H-bond direction is narrower in the dense phases, and approache...<br/>[Phys. Rev. Lett. 100, 177801] Published Fri May 02, 2008 C. Pantalei, A. Pietropaolo, R. Senesi, S. Imberti, C. Andreani, J. Mayers, C. Burnham, and G. Reiter 2008-05-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.177801 Phys. Rev. Lett. 100, 177801 text/html article Physical Review Letters 100 17 2008-05-02T00:00:00-04:00 177801 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.178303 Author(s): T. Baumberger, C. Caroli, D. Martina, and O. Ronsin<br/>The full 2D analysis of roughness profiles of fracture surfaces resulting from quasistatic crack propagation in gelatin gels reveals an original behavior characterized by (i) strong anisotropy with maximum roughness at V-independent symmetry-preserving angles and (ii) a subcritical instability lea...<br/>[Phys. Rev. Lett. 100, 178303] Published Thu May 01, 2008 T. Baumberger, C. Caroli, D. Martina, and O. Ronsin 2008-05-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.178303 Phys. Rev. Lett. 100, 178303 text/html article Physical Review Letters 100 17 2008-05-01T00:00:00-04:00 178303 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.178103 Author(s): David Saintillan and Michael J. Shelley<br/>We use kinetic theory and nonlinear continuum simulations to study the collective dynamics in suspensions of self-propelled particles. The stability of aligned suspensions is first analyzed, and we demonstrate that such suspensions are always unstable to fluctuations, a result that generalizes previ...<br/>[Phys. Rev. Lett. 100, 178103] Published Tue Apr 29, 2008 David Saintillan and Michael J. Shelley 2008-04-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.178103 Phys. Rev. Lett. 100, 178103 text/html article Physical Review Letters 100 17 2008-04-29T00:00:00-04:00 178103 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.178302 Author(s): Thomas Speck, Jakob Mehl, and Udo Seifert<br/>For configurational changes of soft matter systems affected or caused by external hydrodynamic flow, we identify applied work, exchanged heat, and entropy change on the level of a single trajectory. These expressions guarantee invariance of stochastic thermodynamics under a change of frame of refere...<br/>[Phys. Rev. Lett. 100, 178302] Published Mon Apr 28, 2008 Thomas Speck, Jakob Mehl, and Udo Seifert 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.178302 Phys. Rev. Lett. 100, 178302 text/html article Physical Review Letters 100 17 2008-04-28T00:00:00-04:00 178302 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.178301 Author(s): S. Al Akhrass, G. Reiter, S. Y. Hou, M. H. Yang, Y. L. Chang, F. C. Chang, C. F. Wang, and A. C.-M. Yang<br/>A nonmonotonic, two-stage dewetting behavior was observed for spin coated thin viscoelastic polymer films on soft elastic substrates. At times shorter than the relaxation time of the polymer (t<τ_{rep} ), dewetting generated deep trenches in the soft rubbery substrate which, in turn, almost stopped dewetting. At later stages (t≫τ_{rep} ), dewetting accelerated, accompanied by an unstable rim. However, holes nucleated at t<τ_{rep} showed only this second-stage behavior. Our observations are attributed to large elastic deformations in the substrate caused by transient residual stresses within the film.<br/>[Phys. Rev. Lett. 100, 178301] Published Mon Apr 28, 2008 S. Al Akhrass, G. Reiter, S. Y. Hou, M. H. Yang, Y. L. Chang, F. C. Chang, C. F. Wang, and A. C.-M. Yang 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.178301 Phys. Rev. Lett. 100, 178301 text/html article Physical Review Letters 100 17 2008-04-28T00:00:00-04:00 178301 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.178102 Author(s): Jun Fan, Maria Sammalkorpi, and Mikko Haataja<br/>Compositional lipid domains (“lipid rafts”) in plasma membranes are believed to be important components of many cellular processes. The mechanisms by which cells regulate the sizes and lifetimes of these spatially extended domains are poorly understood at the moment. Here we show that the compet...<br/>[Phys. Rev. Lett. 100, 178102] Published Mon Apr 28, 2008 Jun Fan, Maria Sammalkorpi, and Mikko Haataja 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.178102 Phys. Rev. Lett. 100, 178102 text/html article Physical Review Letters 100 17 2008-04-28T00:00:00-04:00 178102 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.178101 Author(s): D. J. Diestler and E. W. Knapp<br/>Multivalent ligands can form ligand-receptor complexes that are orders of magnitude more stable than their monovalent counterparts. A theory of this “enhancement effect” based on fundamental principles of statistical thermodynamics is presented. A key finding is a simple analytical expression th...<br/>[Phys. Rev. Lett. 100, 178101] Published Mon Apr 28, 2008 D. J. Diestler and E. W. Knapp 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.178101 Phys. Rev. Lett. 100, 178101 text/html article Physical Review Letters 100 17 2008-04-28T00:00:00-04:00 178101 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.168301 Author(s): Eric Grelet<br/>We report a study of colloidal suspensions of highly monodisperse semiflexible chiral rodlike viruses, denoted fd, in the range of high concentrations. Small angle x-ray scattering experiments reveal the existence of two hexagonal phases: the first one is crystalline and the second one is hexatic co...<br/><img src="http://prola.aps.org/graphics/prlsugg30x30.gif" width="30" height="30" alt="PRL Editors' Suggestion"/><br/>[Phys. Rev. Lett. 100, 168301] Published Thu Apr 24, 2008 Eric Grelet 2008-04-24T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.168301 Phys. Rev. Lett. 100, 168301 text/html article Physical Review Letters 100 16 2008-04-24T00:00:00-04:00 168301 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.168105 Author(s): O. Bénichou and R. Voituriez<br/>The time needed for a particle to exit a confining domain through a small window, called the narrow-escape time (NET), is a limiting factor of various processes, such as some biochemical reactions in cells. Obtaining an estimate of the mean NET for a given geometric environment is therefore a requis...<br/>[Phys. Rev. Lett. 100, 168105] Published Wed Apr 23, 2008 O. Bénichou and R. Voituriez 2008-04-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.168105 Phys. Rev. Lett. 100, 168105 text/html article Physical Review Letters 100 16 2008-04-23T00:00:00-04:00 168105 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.168104 Author(s): R. P. Linna and K. Kaski<br/>With a model that incorporates hydrodynamics directly, we show that flow experiments can be used for detecting some characteristics of the DNA elasticity which manifest themselves clearly at large length scales but cannot be observed by mechanical forcing experiments even at very small length scales...<br/>[Phys. Rev. Lett. 100, 168104] Published Wed Apr 23, 2008 R. P. Linna and K. Kaski 2008-04-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.168104 Phys. Rev. Lett. 100, 168104 text/html article Physical Review Letters 100 16 2008-04-23T00:00:00-04:00 168104 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.168103 Author(s): Fernando Peruani and Gustavo J. Sibona<br/>We study the spreading of excitations in 2D systems of mobile agents where the excitation is transmitted when a quiescent agent keeps contact with an excited one during a nonvanishing time. We show that the steady states strongly depend on the spatial agent dynamics. Moreover, the coupling between e...<br/>[Phys. Rev. Lett. 100, 168103] Published Wed Apr 23, 2008 Fernando Peruani and Gustavo J. Sibona 2008-04-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.168103 Phys. Rev. Lett. 100, 168103 text/html article Physical Review Letters 100 16 2008-04-23T00:00:00-04:00 168103 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.168102 Author(s): L. J. Abu-Raddad, B. I. van der Ventel, and N. M. Ferguson<br/>A model for coinfection in multiple strain infectious diseases is developed to incorporate coinfection statuses, immune and infection history, and cross immunity. It is solved for the symmetric interior equilibrium through the use of a ladder operator formalism inspired by quantum mechanical methods...<br/>[Phys. Rev. Lett. 100, 168102] Published Wed Apr 23, 2008 L. J. Abu-Raddad, B. I. van der Ventel, and N. M. Ferguson 2008-04-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.168102 Phys. Rev. Lett. 100, 168102 text/html article Physical Review Letters 100 16 2008-04-23T00:00:00-04:00 168102 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.167802 Author(s): T. Gilet, D. Terwagne, N. Vandewalle, and S. Dorbolo<br/>Low viscosity (<100  cSt) silicon oil droplets are placed on a high viscosity (1000 cSt) oil bath that vibrates vertically. The viscosity difference ensures that the droplet is more deformed than the bath interface. Droplets bounce periodically on the bath when the acceleration of its sinusoidal motion is larger than a threshold value. The threshold is minimum for a particular frequency of excitation: droplet and bath motions are in resonance. The bouncing droplet has been modeled by considering the deformation of the droplet and the lubrication force exerted by the air layer between the droplet and the bath. Threshold values are predicted and found to be in good agreement with our measurements.<br/>[Phys. Rev. Lett. 100, 167802] Published Wed Apr 23, 2008 T. Gilet, D. Terwagne, N. Vandewalle, and S. Dorbolo 2008-04-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.167802 Phys. Rev. Lett. 100, 167802 text/html article Physical Review Letters 100 16 2008-04-23T00:00:00-04:00 167802 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.168101 Author(s): Satoru Fujiyoshi, Masanori Fujiwara, and Michio Matsushita<br/>Fluorescence spectroscopy of single proteins at liquid-helium temperatures reveals a relation between structural dynamics and biological functions of the proteins. The technical difficulties in detecting visible fluorescence are chromatic aberration and optical background. They were overcome by a ne...<br/>[Phys. Rev. Lett. 100, 168101] Published Tue Apr 22, 2008 Satoru Fujiyoshi, Masanori Fujiwara, and Michio Matsushita 2008-04-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.168101 Phys. Rev. Lett. 100, 168101 text/html article Physical Review Letters 100 16 2008-04-22T00:00:00-04:00 168101 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.167801 Author(s): Sneha Elizabeth Abraham, Sarika Maitra Bhattacharrya, and Biman Bagchi<br/>Polydispersity is found to have a significant effect on the potential energy landscape; the average inherent structure energy decreases with polydispersity. Increasing polydispersity at a fixed volume fraction decreases the glass transition temperature and the fragility of glass formation analogous ...<br/>[Phys. Rev. Lett. 100, 167801] Published Tue Apr 22, 2008 Sneha Elizabeth Abraham, Sarika Maitra Bhattacharrya, and Biman Bagchi 2008-04-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.167801 Phys. Rev. Lett. 100, 167801 text/html article Physical Review Letters 100 16 2008-04-22T00:00:00-04:00 167801 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158701 Author(s): Cecilia Nardini, Balázs Kozma, and Alain Barrat<br/>We investigate different opinion formation models on adaptive network topologies. Depending on the dynamical process, rewiring can either (i) lead to the elimination of interactions between agents in different states, and accelerate the convergence to a consensus state or break the network in nonin...<br/>[Phys. Rev. Lett. 100, 158701] Published Fri Apr 18, 2008 Cecilia Nardini, Balázs Kozma, and Alain Barrat 2008-04-18T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158701 Phys. Rev. Lett. 100, 158701 text/html article Physical Review Letters 100 15 2008-04-18T00:00:00-04:00 158701 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158104 Author(s): A. Imparato and A. Pelizzola<br/>Mechanical unfolding and refolding of ubiquitin are studied by Monte Carlo simulations of a Gō model with binary variables. The exponential dependence of the time constants on the force is verified, and folding and unfolding lengths are computed, with good agreement with experimental results. Furt...<br/>[Phys. Rev. Lett. 100, 158104] Published Fri Apr 18, 2008 A. Imparato and A. Pelizzola 2008-04-18T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158104 Phys. Rev. Lett. 100, 158104 text/html article Physical Review Letters 100 15 2008-04-18T00:00:00-04:00 158104 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158303 Author(s): Ubaldo M. Córdova-Figueroa and John F. Brady<br/>A model for self-propulsion of a colloidal particle—the osmotic motor—immersed in a dispersion of “bath” particles is presented. The nonequilibrium concentration of bath particles induced by a surface chemical reaction creates an osmotic pressure imbalance on the motor causing it to move. Th...<br/>[Phys. Rev. Lett. 100, 158303] Published Thu Apr 17, 2008 Ubaldo M. Córdova-Figueroa and John F. Brady 2008-04-17T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158303 Phys. Rev. Lett. 100, 158303 text/html article Physical Review Letters 100 15 2008-04-17T00:00:00-04:00 158303 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158302 Author(s): L. Brun, M. Pastoriza-Gallego, G. Oukhaled, J. Mathé, L. Bacri, L. Auvray, and J. Pelta<br/>We study the transport of dextran sulfate through a protein channel as a function of applied voltage. Below 60 mV, the chain’s entrance to the pore is hindered by an entropic barrier; above 60 mV, the strong local electric field forces the chain entrance. The effective charge of the polyelectrol...<br/>[Phys. Rev. Lett. 100, 158302] Published Thu Apr 17, 2008 L. Brun, M. Pastoriza-Gallego, G. Oukhaled, J. Mathé, L. Bacri, L. Auvray, and J. Pelta 2008-04-17T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158302 Phys. Rev. Lett. 100, 158302 text/html article Physical Review Letters 100 15 2008-04-17T00:00:00-04:00 158302 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158103 Author(s): F. Campelo and A. Hernández–Machado<br/>A mechanism of extraction of tubular membranes from a lipid vesicle is presented. A concentration gradient of anchoring amphiphilic polymers generates tubes from budlike vesicle protrusions. We explain this mechanism in the framework of the Canham-Helfrich model. The energy profile is analytically c...<br/>[Phys. Rev. Lett. 100, 158103] Published Thu Apr 17, 2008 F. Campelo and A. Hernández–Machado 2008-04-17T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158103 Phys. Rev. Lett. 100, 158103 text/html article Physical Review Letters 100 15 2008-04-17T00:00:00-04:00 158103 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158102 Author(s): Nicholas A. Licata and Alexei V. Tkachenko<br/>We study theoretically a novel drug delivery system that utilizes the overexpression of certain proteins in cancerous cells for cell-specific chemotherapy. The system consists of dendrimers conjugated with “keys” (ex: folic acid) which “key-lock” bind to particular cell-membrane proteins (ex...<br/>[Phys. Rev. Lett. 100, 158102] Published Thu Apr 17, 2008 Nicholas A. Licata and Alexei V. Tkachenko 2008-04-17T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158102 Phys. Rev. Lett. 100, 158102 text/html article Physical Review Letters 100 15 2008-04-17T00:00:00-04:00 158102 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158003 Author(s): X. Jacob, V. Aleshin, V. Tournat, P. Leclaire, W. Lauriks, and V. E. Gusev<br/>Experimentally determined dispersion relations for acoustic waves guided along the mechanically free surface of an unconsolidated granular packed structure provide information on the elasticity of granular media at very low pressures that are naturally controlled by the gravitational acceleration an...<br/>[Phys. Rev. Lett. 100, 158003] Published Thu Apr 17, 2008 X. Jacob, V. Aleshin, V. Tournat, P. Leclaire, W. Lauriks, and V. E. Gusev 2008-04-17T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158003 Phys. Rev. Lett. 100, 158003 text/html article Physical Review Letters 100 15 2008-04-17T00:00:00-04:00 158003 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158002 Author(s): Keiji Watanabe and Hajime Tanaka<br/>Collective behavior of driven granular matter is often strikingly analogous to that of thermal systems. Here we use a vibrated quasi-two-dimensional granular matter as a model system and investigate the mechanism of the liquid-glass transition. We demonstrate by direct observation the existence of l...<br/>[Phys. Rev. Lett. 100, 158002] Published Wed Apr 16, 2008 Keiji Watanabe and Hajime Tanaka 2008-04-16T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158002 Phys. Rev. Lett. 100, 158002 text/html article Physical Review Letters 100 15 2008-04-16T00:00:00-04:00 158002 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://link.aps.org/doi/10.1103/PhysRevLett.100.158001 Author(s): Hong-Qiang Wang and Narayanan Menon<br/>Two species of particles in a binary granular system typically do not have the same mean kinetic energy, in contrast to the equipartition of energy required in equilibrium. We investigate the role of the heating mechanism in determining the extent of nonequipartition of kinetic energy. In most exper...<br/>[Phys. Rev. Lett. 100, 158001] Published Wed Apr 16, 2008 Hong-Qiang Wang and Narayanan Menon 2008-04-16T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.100.158001 Phys. Rev. Lett. 100, 158001 text/html article Physical Review Letters 100 15 2008-04-16T00:00:00-04:00 158001 Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics