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Gold nanoparticles: dispersibility in biological media and cell-biological effect
Journal of Materials Chemistry, 2010Spherical gold nanoparticles with a hydrodynamic diameter between 25 and 37 nm were prepared and stabilised with poly(N-vinylpyrrolidone) (PVP) or tris(sodium-m-sulfonatophenyl)phosphine (TPPTS). They were subjected to different cell culture media, e.g.
Mahl, Dirk +4 more
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Dispersion modelling for biological threat
2015 12th International Bhurban Conference on Applied Sciences and Technology (IBCAST), 2015Accidental release scenario related to chemical can be simulated through different software application available in market. CHARM ® is one of the software applications which handle movement of airborne particles in complex terrain. The aim of this paper is to explain how dispersion for Biological threat can be achieved by using same software package ...
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Biological and Ecological Effects of Dispersants
1989In the marine environment, commercial dispersants have been employed as part of the clean-up strategy following major oil spills since the late 1960’s and the Torrey Canyon disaster. However, considerable controversy has surrounded the use of these surfactant (“surface active agent”) formulations under such circumstances.
M. W. Trett +6 more
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Resource‐Dependent Dispersal and the Speed of Biological Invasions
The American Naturalist, 2006Many mobile organisms exhibit resource-dependent movement in which movement rates adjust to changes in local resource densities through changes in either the probability of moving or the distance moved. Such changes may have important consequences for invasions because reductions in resources behind an invasion front may cause higher dispersal while ...
Greg, Dwyer, William F, Morris
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Preparation of Boron Nitride Nanotubes Aqueous Dispersions for Biological Applications
Journal of Nanoscience and Nanotechnology, 2008While in the last years applications of carbon nanotubes in the field of biotechnology have been largely proposed, biomedical applications of boron nitride nanotubes (BNNTs) are yet totally unexplored. BNNTs have very interesting physical properties that should be exploited in the biomedical field.
Ciofani G +3 more
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Biological stabilizers for different dispersive clayey soils
2019Dispersive clays are a particular type of soil materials in which the clay fraction erodes in the presence of water by a process of deflocculating; in the state of de-flocculation, the particles remain in suspension as single units, with a consequent significant problem in geotechnical and geo-environmental projects. Dispersive soils have been found to
Abbaslou, Hakime +3 more
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Long range dispersal and spatial pattern formation in biological invasions
Mathematical Biosciences, 2006In this paper we explore the consequences of long distance dispersal in biological invasion processes through simulations using a recently developed cellular automaton model. We show that long distance dispersal generate characteristic spatial patterns with several stationary scale-invariant properties.
Cannas S. A. +2 more
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Inverse Problems for Dispersive Biological Media
1990Recently electromagnetic pulses with widths of picoseconds, 10−12 s, and even femtoseconds, 10−15 s, have become available. This opens a new field of inquiry called ultrafast spectroscopy. This new family of tools also provides new ways to look at old problems.
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Effect of Biological and Chemical Dispersants on Oil Spills
Petroleum Science and Technology, 2005Abstract The aim of this work is to study the effect of different types of chemical and biological dispersants used for crude oil spill treatment. The dispersing efficiency of the different dispersants on the crude oil was determined for selecting the most effective one.
R.I. Abdallah, S.Z. Mohamed, F.M. Ahmed
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A ‘Goldilocks’ hypothesis for dispersal of biological control agents
BioControl, 2011The rate at which biological control agents disperse from release sites has important implications for their establishment and spread. Low rates of dispersal can yield spread that is too slow and may necessitate redistribution efforts for importation biological control and a high density of release sites for augmentation.
George E. Heimpel, Mark K. Asplen
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