Molecular dynamics simulations of dense and rarefied fluids comprising small chain molecules in chemically patterned nanochannels predict a novel switching from Poiseuille to plug flow along the channel. We also demonstrate behavior akin to the lotus effect for a nanodrop on a chemically patterned substrate. Our results show that one can control and exploit the behavior of fluids at the nanosca...

The curvature and temperature dependency of the liquid-vapor surface tension has a significant influence on accurate prediction nanobubble/nanodrop nucleation process. In this work, mesoscopic approach combining pseudo-potential multiphase lattice Boltzmann method (LBM), principle dynamic similarity, van der Waals theory corresponding states is adopted to quantitatively investigate Tolman lengt...

Forming hydrated clusters containing triply charged metal ions is challenging due to the competing process of dissociation by forming the metal hydroxide with one less net charge and a protonated water molecule. It is demonstrated for the first time that it is possible to form such clusters using a method we call "nanodrop mass spectrometry". Clusters of the form [M(H(2)O)(n)](3+), where M = Ce...

Ion evaporation is an essential step in the formation of charged ions from electrosprays, yet many aspects of the process are poorly understood. The ion evaporation kinetics of the 1-ethyl-3-methyl-imidazolium+ (EMI+) based ionic liquids (ILs) EMI-BF4, EMI-bis(perfluoroethylsulfonyl)imide, EMI-bis(trifluoromethylsulfonyl)imide and EMI-tris(trifluoromethylsulfonyl)methide (EMI-Methide) are studi...

Solid/liquid two-components Ga-Pb structures in isolated nanometer sized particles have been produced and studied by electron microscopy. Production is based on the breath figure technique and we investigate the way the two components are distributed. We clearly identify two growth regimes associated with the two different ways a Pb atom incorporates into a Ga nanodrop. Using TEM and SEM, the s...

Typically, the first thing one wants to know about a DNA preparation is its concentration and purity. Both can be determined by measuring the absorption of ultraviolet light. DNA absorbs UV more or less strongly depending upon the wavelength. We will be using a NanoDrop spectrophotometer, which takes measurements at wavelengths of 260 and 280 nm, and in addition determines an absorption spectru...

The stability of the (H 2 O) 100 nanodrop, experimentally known from a polyoxomolybdate crystal structure (Müller et al. Inorg. Chem. Commun., 2003, 6, 52) and other structures inferred from clathrate structures and from the literature, are studied by quantum-chemical B3LYP and MP2 computations. Positions for the H atoms in the 100-molecule cluster are suggested, which will then be of C 2h /C i...