Bacteriorhodo sin is an integral membrane light-driven proton pump from ~aLbucter ium ~ o b i u m . It consists of seven transmembrane helices, surrounding a central proton translocation channel, in a 1:l complex with a retinal chromophore. The structure of the transmembrane helices has been resolved by high-resolution electron cryo-microscopy [ 11. We have investigated the amphipathic nature o...

499: 177. Lindner H, Sarg B and Helliger W (1997) Application of hydrophilic-interaction liquid chromatography to the separation of phosphorylated H1 histones. Journal of Chromatography 728: 55. Mant CT and Hodges RS (eds) (1991) High-performance Liquid Chromatography of Peptides and Proteins: Separation, Analysis, and Conformation. Boca Raton: CRC Press. Mant CT and Hodges RS (1996) Analysis o...

INTRODUCTION Detrusor sphincter dyssynergia affects 70% to 80% of all spinal cord injury patients, resulting in increased risk of urinary tract infections (UTIs) and potential exposure to antimicrobial resistance. In Brazil, local guidelines recommend intermittent catheterization as the best method for bladder emptying, and two catheter types are available: the conventional uncoated PVC and the...

Changes of titanium surface roughness and surface free energy may influence protein absorption that increases cell differentiation through activation of focal adhesion kinase related pathways. However, the influence of titanium surface roughness and hydrophilicity on fibroblast behavior is not well understood. The aim of this study was to investigate the influence of topography and hydrophilici...

Contact electrochemical replication (CER) is a novel pattern replication methodology advanced in this laboratory that offers the unprecedented capability of direct one-step reproduction of monolayer surface patterns consisting of hydrophilic domains surrounded by a hydrophobic monolayer background (hydrophilic @ hydrophobic monolayer patterns), regardless of how the initial "master" pattern was...

BACKGROUND Intermittent catheterisation is the method of choice for the management of bladder dysfunctions. Different urinary catheters are available, but there is conflicting evidence on which type of catheter is best. The present study provides an objective evaluation of the clinical effectiveness of different subsets of urinary catheters. METHODS A systematic literature review was performe...

PURPOSE To retrospectively evaluate the incidence of neodymium: YAG (ND:YAG) laser capsulotomies for posterior capsule opacification (PCO) seen with hydrophobic and hydrophilic acrylic intraocular lens implants 18 months after surgery. METHODS One hundred and five eyes that had phacoemulsification with a continuous curvilinear capsulorhexis and implantation of either a hydrophobic or a hydrop...

The entomopathogenic fungus Beauveria bassiana produces at least three distinct single-cell propagules, aerial conidia, vegetative cells termed blastospores, and submerged conidia, which can be isolated from agar plates, from rich broth liquid cultures, and under nutrient limitation conditions in submerged cultures, respectively. Fluorescently labeled fungal cells were used to quantify the kine...

Short title: Transitions of a periodic hydrophilic hydrophobic chain 1 We study a single self avoiding hydrophilic hydrophobic polymer chain, through Monte Carlo lattice simulations. The affinity of monomer i for water is characterized by a (scalar) charge λ i , and the monomer-water interaction is short-ranged. Assuming incompressibility yields an effective short ranged interaction between mon...

We have shown that the lattice fluid hydrogen bond ~LFHB! model can successfully quantify the first-order volume transition in hydrogels. The model predicts that a critical balance of hydrophilic and hydrophobic interactions is required for a gel to exhibit a discontinuous volume transition. In this work we will report the swelling behavior of a new thermoreversible copolymer hydrogel, which ha...