ZIB

Hits per page

hits 1 - 2 | 2 hits

Sorting

Electronic Resource

Spreading of liquids on gel surfaces (2000)

Szabó, D. ; Akiyoshi, S. ; Matsunaga, T. ; [et al.]

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 113 (2000), S. 8253-8259

add to mindlist on the mindlist

Details

ISSN: 1089-7690

Source: AIP Digital Archive

Topics: Physics , Chemistry and Pharmacology

Notes: In this work we present a simple model for the kinetics of spreading of film-forming liquids on polymer gels. The model is compared with experiments and fair agreement is obtained. The spreading process can be theorized by considering the gel as a thick liquid layer containing a fibrous material (i.e., the polymer network). The spreading theory of Joos and Pintens is extended in such a way that the penetration of the flow into the bulk of the gel—which plays the major role in the kinetics of the spreading—is described by the Debye–Brinkman equation. It is also shown that spreading experiments can provide information on the surface structure of the underlying gel. © 2000 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1310664

Permalink

Library	Location	Call Number	Volume/Issue/Year	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

Electronic Resource

Effects of charge density and hydrophobicity of ionene polymer on cell binding and viability (2000)

Narita, T. ; Ohtakeyama, R. ; Nishino, M. ; [et al.]

Springer

Colloid & polymer science 278 (2000), S. 884-887

add to mindlist on the mindlist

Details

ISSN: 1435-1536

Keywords: Key words Yeast protoplast ; Membrane disruption ; Cooperativity ; Ionene polymer

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Abstract The binding of cationic ionenes onto budding protoplast was investigated and the results were associated with the cell viability. There are critical numbers of carbon atoms to induce effective cell disruption and cell binding. The longer the alkyl chain of the ionene, the lower the concentration at which cell disruption occurs. The ionenes with increased charge density undergo effective binding, while almost 2 orders of magnitude higher concentration are required for effective cell disruption. These results were associated with the cooperativity of the binding process, which induces local stress and solubilization of the lipid membrane.