A "translation" of the phenomenological permeability coefficients into friction and distribution amenable to physical interpretation is presented. Expressions are obtained for solute coefficient omega reflection sigma both non-electrolytic electrolytic permeants. An analysis given loose membranes as well dense natural where transport may go through capillaries or by solution in lipoid parts membrane. Water diffusion filtration relation between these capillary pore radius membrane discussed....

O. Kedem and A. Katchalsky, Trans. Faraday Soc., 1963, 59, 1918 DOI: 10.1039/TF9635901918

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O. Kedem and A. Katchalsky, Trans. Faraday Soc., 1963, 59, 1941 DOI: 10.1039/TF9635901941

O. Kedem and A. Katchalsky, Trans. Faraday Soc., 1963, 59, 1931 DOI: 10.1039/TF9635901931

Gold nanoisland films displaying localized surface plasmon resonance optical response were constructed by evaporation on glass and annealing. The distance sensitivity refractive index (RIS) for island of different nominal thicknesses morphologies investigated using layer-by-layer polyelectrolyte multilayer assembly. Since the polymer forms a conformal coating Au islands substrate between islands, relative to adsorption was evaluated. RIS also determined independently series solvents. An...

A stable papain membrane has been prepared on a collodion matrix by absorbing in and then cross-linking the with bisdiazobenzidine 3,3'-disulfonic acid. The pH-dependence of activity enzyme low-molecular-weight substrate, benzoylarginine ethyl ester, was found to differ from that crystalline papain; low neutral pH range where native its optimum high at alkaline pH. This anomalous behavior is due lowering local within as result release acid enzymic hydrolysis ester substrate.

A new grafting procedure was developed for surface modification of commercial polyamide reverse osmosis membranes. Acidic and neutral acrylic monomers sulfo-containing vinyl were successfully grafted from aqueous solutions under mild conditions. The modifications monitored by ATR-FTIR spectra. characteristic peaks functional groups introduced evaluated. spectral findings correlated with physicochemical properties the

This article describes the functions and mechanisms of particle electron ratchets, interplay between theory experiment in this field non-equilibrium transport.

Localized surface plasmons (SPs), that is, charge density oscillations in metallic nanostructures often excited by coupling to electromagnetic radiation, have been widely studied for use sensing applications. Here we present recent work from our group related several major issues the field, which not treated depth previous reviews. Specifically, discuss distance dependence of localized plasmon response; differences response between transmission and reflection mode measurements; comparison...

Single‐atom catalysts (SACs) are explored as replacements for homogeneous in carbon‐carbon coupling reactions; however, little work has been done to directly compare them catalysts, especially with regard selectivity. In this work, we systematically the activity and regioselectivity of a Pd/CeO2 SAC catalyst Pd(OAc)2/4PPh3 Suzuki reaction involving 2,4‐dibromopyridine. Typically, 2‐position will be most likely react; have found that preferentially couples at atypical 4‐position under...