McBain

Fig. ni-14. Cross section of the PLAWM (Pockels-Langmuir-Adam-Wilson-McBain) trough. 

McBain reports the following microtome data for a phenol solution. A solution of 5 g of phenol in 1000 g of water was skimmed the area skimmed was 310 cm and a 3.2-g sample was obtained. An interferometer measurement showed a difference of 1.2 divisions between the bulk and the scooped-up solution, where one division corresponded to 2.1 X 10 g phenol per gram of water concentration difference. Also, for 0.05, 0.127, and 0.268M solutions of phenol at 20°C, the respective surface tensions were 67.7, 60.1, and 51.6 dyn/cm. Calculate the surface excess Fj from (a) the microtome data, (b) for the same concentration but using the surface tension data, and (c) for a horizontally oriented monolayer of phenol (making a reasonable assumption as to its cross-sectional area). 

A second general type of procedure, due to McBain [29], is to determine n by a direct weighing of the amount of adsorption. McBain used a delicte quartz spiral spring, but modem equipment generally makes use of a microbalance or a transducer. An illustrative schematic is shown in Fig. XVII-6. 

McBain J W 1913 Mobility of highly oharged mioelles Trans. Faraday Soc. 9 99-101... 

McBain J W 1932 Sorption by chabasite, other zeolites and permeable crystals The Sorption of Gases and Vapors by So//ds (London Routledge) pp 167-76... 

J. W. McBain and co-workers. Foaming of Aircraft-Fngine Oils as a Problem in Colloid Chemist NACA ARR No. 4105, National Advisory Committee for Aeronautics, Stanford, Calif., 1944. 

McBain and Hopkins [2], in their classical scientific study, argued that the surface roughness of a porous material was the basis of mechanical adhesion , its being... 

Packham, D.E. and Johnston, C., Mechanical adhesion were McBain and Hopkins right An empirical study. Ini. J. Adhes. Adhes., 14(2), 131-135 (1994). 

MCBAIN A J, MACFARLANE G T (2001) Modulation of genotoxic enzyme activities by non-digestible oligosaccharide metabolism in in-vitro human gut bacterial ecosystems. J Med Microbiol. 50 833-42. 

In order to understand current approaches for prevention and control of biofilms, we must first consider the reasons for the failure of conventional antimicrobial protocols. There are thought to be three main reasons as to why biofilm bacteria out-survive their planktonic counterparts during antimicrobial treatments (reviewed by McBain et a/.16).These are i) poor penetration of antimicrobial compounds due to the presence and turn-over of exopolymer slime (glycocalyx) ii) the imposition of extreme nutrient limitation within the depths of the biofilm community and the co-incident expression of metabolically-dormant, recalcitrant phenotypes and (iii) the expression of attachment-specific phenotypes that are radically different and intrinsically less susceptible than unattached ones. 

Salonen M, Middeldorp P, Briglia M, Valo R, Haggblom M and McBain A Kamely D, Chakrabarty A and Omenn, GS (eds) (1989) Cleanup of old industrial sites. In Biotechnology and biodegradation. Portfolio Publishing, The Woodlands, TX, pp 347-365... 

For obtaining the value of the rate constant, it is desirable to determine the value of the diffusion coefficient of the metal ions or of one of the reactants (in the case of a redox couple) in the supporting electrolyte at an appropriate temperature. The value of the diffusion coefficient is experimentally determined using a McBain-Dowson cell and the King-Cathard equation, as described earlier.40... 

The diffusion coefficient of the depolarizer in any supporting electrolyte is determined using a McBain-Dowson cell and the King-Cathard equation. 

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