Boron uptake

Soon, Y.K. and T.E. Bates. 1985. Molybdenum, cobalt and boron uptake from sewage-sludge-amended soils. Canad. Jour Soil Sci. 65 507-517. 

Slatkin, D., R Micca, A. Eorman, D. Gabel, L. Wielopolski, and R. Eairchild. 1986. Boron uptake in melanoma, cerebrum and blood from Na2Bi2HuSH and Na4B24H22S2 administered to mice. Biochem. Pharmacol. 35 1771-1776. 

Wilson NR, Clewes SL, Newton ME, Unwin PR, Macpherson JV (2006) Impact of grain-dependent boron uptake on the electrochemical and electrical properties of polycrystalline boron doped diamond electrodes. J Phys Chem B 110 5639-5646... 

Figure 5. Boron uptake of synthetic and dealuminated mordenites.

Boron enters plant roots as undissociated boric acid. Significant differences in boron uptake occur, even when plants are grown under identical conditions. Recent findings indicate that the lipid composition of the plasma membrane can affect total boron uptake by a plant. Evidence also has been obtained indicating that boron enters plant cells in part by passive diffusion through the lipid bilayer of the plasma membrane... 

Boron analysis via detection of the prompt y-ray from the °B (n, a) Li reaction was shown to be a reliable technique (Fairchild et al. 1986). This method makes it possible to measure the boron content in small amounts (mg samples) of antibodies or boron uptake in cells grown in tissue culture. In order to determine °B concentrations in a tumor in vivo without injuring tissues, phantom prompt... 

Laakso et al. (2001) developed a method for boron determination that uses inductively coupled plasma atomic emission spectrometry and protein removal with trichloroacetic acid before analysis. This method is feasible, accurate, and one of the fastest for boron determination during BNCT and enables a more reliable estimation of the irradiation dose. Yoshida et al. (2002) used flow cytometry to sort the cells by phases, and the boron concentration in each fraction was measured with inductively coupled plasma atomic emission spectroscopy. Obtained results revealed that sodium borocaptate and boronophenylalanine were associated with different rates of boron uptake in different phases. 

Munck af Rosenschbld, P. M., W. F. A. R. Verbakel, C. P. Ceberg, F. Stecher-Rasmussen, and B. R. R. Persson. 2001. Toward chnical application of prompt gamma spectroscopy for in vivo monitoring of boron uptake in boron neutron capture therapy. Med. Phys. 28 787-795. 

Yoshida, F., A. Matsumura, Y. Shibata, T. Yamamoto, H. Nakauchi, M. Okumura, and T. Nose. 2002. Cell cycle dependence of boron uptake from two boron compounds used for clinical neutron capture therapy. Cancer Lett. 187 135-141. 

Tumor cells have an increased vascular permeability and a decrease in their lymphatic drainage system, which leads to the passive accumulation of macromo-lecular drugs in these neoplastie cells. The macromolecules may also contain groups that are preferentially taken up by cancer cells. For example, the presence of folate ions on the surface of boron eontaining hposomes greatly enhances the boron uptake in human KB squamous epithelial cancer cells, which have overexpressed foliate acceptors. " Other examples are the reconstituted LDLs, whieh stiU retain their ability to bond to LDL speeifie sites on the tumor cells. These liposomes and modified LDLs have the ability to deliver massive amounts of to cancer eells and have been... 

These results indicate a striking increase in boron uptake with increasing available boron content in the soil and they suggest that increases in the boron contents of plant leaves of the order of tenfold can be tolerated without adverse effects. It appears that the high toxicity of boron for plants is due to the ease with which this element enters the plant and is translocated within it [131] rather than to any innate phytotoxic property. Since this element appears to be translocated along with water within the plant, there appears to be no device by which it can be excluded at the root surface. 

This clearly caimot be the case for both aragonite and calcite, as the Sen et al. study showed (23). However, it is useful for considering boron uptake in... 

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