Related Articles A new numerical approach to dense polymer brushes and surface instabilities J. Chem. Phys. 136, 044903 (2012) Modifying thermal transport in electrically conducting polymers: Effects of stretching and combining polymer chains J. Chem. Phys. 136, 044901 (2012) Note: Percolation in two-dimensional flexible chains systems J. Chem. Phys. 136, 046101 (2012) Microstructure, transport...

Thermally sensitive poly(N-isopropylacrylamide) (PNIPAM) brushes grafted on SiO2-coated quartz crystal surface were prepared with a surface-immobilized initiator. Using quartz crystal microbalance (QCM), we investigated the collapse and swelling of the brushes in water in real time. Both frequency and dissipation of PNIPAM brushes were found to gradually change throughout a temperature range 20...

and lone-pair electrons of its oxygen atom attached to the various sites in the latter case. The absorbance of the a band increased until the BET monolayer capacity of 1.1 mmol g-' was reached but stayed constant above this water content. The reason for this result could be that these free OH groups exist only on the surface of adsorbed layers or may remain inside the layer without hydrogen bon...

Self-assembled monolayers (SAMs) of omega-substituted biphenylthiolates (omega-MBP) on gold were characterized by spectral ellipsometry, X-ray photoelectron spectroscopy (XPS), infrared reflection absorption spectroscopy (IRRAS), and vibrational sum frequency generation spectroscopy (VSFG). The vibrational studies of the SAMs were supported by an ab initio frequency analysis at HF/6-31G and BP8...

This paper is concerned with the development of a fully implicit and purely Eulerian fluid-structure interaction method tailored for the modeling of the large deformations of elastic membranes in a surrounding Newtonian fluid. We consider a simplified model for the mechanical properties of the membrane, in which the surface strain energy depends on the membrane stretching. The fully Eulerian de...

In this chapter we will present basic techniques to modify DNA molecules with oligonuleotides, silanize surfaces and finally endgraft modified DNA molecules specifically on functionalized surfaces. Furthermore we will present an experimental setup with which we studied the mechanical stability of the DNA-surface anchoring by stretching the molecules and observing the rupture lengths. We present...

We have performed surface tension measurements on carbopol gels of different concentrations and yield stresses. Our setup, based on the force exerted by a capillary bridge on two parallel plates, allows us to measure an apparent surface tension of the complex fluid and to investigate the influence of flow history. More precisely the apparent surface tension measured after stretching the bridge ...

was performed on two of the failed heterograft valves and three control pig valves. Failure of the heterograft was due to stretching and deformation of the cusps with resultant valvular incompetence. Stretching of the cusp was a result of reduction in the amount of its collagen content. The elastic tissue appeared little altered. A microscopic layer of fibrin thrombus was present on the surface...