Kessler Chemical

Kessler Chemical Co, Polyethylene-glycol Esters", Philadelphia (1948) 13) G.O. 

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It has been well known for a long time that some reactions taking place at a very slow rate may be markedly accelerated by the simultaneous occurrence of another reaction of measurable velocity. On the suggestion of Kessler this phenomenon is called chemical induction and it is said that the reaction of measurable velocity induces the other slow reaction. 

An excellent description of the engineering side of both topics is provided by Kessler and Klein [in Ho and Sirkar (eds.), op. cit., pp. 163-216]. A comprehensive treatment of diffusion appears in Von Halle and Shachter, "Diffusional Separation Methods, in Encyclopedia of Chemical Technology, pp. 149-203, Wiley, 1993. 

Klages J, Coles M, Kessler H (2006) In Bartlett PA, Etzeroth M (eds) NMR-based screening in exploiting chemical diversity for drug discovery, vol 12. RSC, Cambridge, UK, p 263... 

Hartmann T (1999) Chemical ecology of pyrrohzidine alkaloids. Planta 207 483-495 Kessler A, Baldwin IT (2002) Plant responses to insect herbivory the emerging molecular analysis. Annu Rev Plant Biol 53 299-328... 

Biomacromolecules and biopolymers have also been put to use as templates for the synthesis of new materials, or models for the study of molecular mechanisms in nature. Exanq>Ies are nucleic acid synthetic alternatives (Eschenmoser 1999), P- and y-peptide synthetic analoguesofnatural a-peptides (Seebach 2001), and analogues ofpoly-(i )-3-hydroxybutanoic acid. The latter can be obtained from chemical synthesis (Seebach 2001) or the culture of engineered Pseudomonas strains (Kessler 2001). 

Fig. 2. Thermolysin active site. The structure shown is of a substrate bound to the active site 2n2+ and amino acid residues. From Kessler and Matthews (JO). Reprinted with permission of The American Chemical Society.

This shows that the luminescence intensity decreases as a function of [Q] (Q is called a luminescence inhibitor or quencher ), in parallel to the lifetime variation no additional information is obtained by measurement of I as compared to lifetime measurements. In particular, the emission spectrum of M is not distorted (no spectral shift) when Q is added to the solution. The exact chemical nature of Z cannot be deduced from the luminescence measurement of M because the spectroscopic characteristics of Z do not appear in eqs. (15)—(18). Finally, it should be noted that, strictly speaking, the term luminescence inhibition and the Stern-Volmer equation should apply solely to experiments for which both the lifetime and the luminescence intensity decrease in parallel as a function of the concentration of a quencher . Finally, note that Stern-Volmer constants having a negative value have no physical meaning (Kessler, 1998). 

Kessler, H.G., Fink, A. 1992. Physico-chemical effect of pasteurization on cream properties. Bulletin 271, International Dairy Federation, Brussels, pp. 11-17. 

H Kessler and G Hozemann, in Proceedings of 8th American Peptide Symposium (V J Hruby and D H Rich, eds ), Pierce Chemical Company, in press... 

David P. Kessler / Department of Chemical Engineering, Purdue University,... 

Occelli ML, Kessler H (1998) Synthesis of Porous Materials Zeolites, Clays, and Nanostructures. Chemical Industries, Vol 69, 718 p... 

Kessler, C., D. Perner, and U. Platt (1982). Spectroscopic measurements of nitrous acid and formaldehyde—implications for urban photochemistry. In Physico-chemical Behaviour of Atmospheric Pollutants , (B. Versino and H. Om, eds.), Proc. Eur. Symp., 2nd, Varese, Italy, pp. 393-399. Reidel, Dordrecht, Holland. 

R. Shamel and A. Udis-Kessler (2001) Chemistry Industry, p. 179 - Bulk chemicals critical chloralkali cycles continue . 

Realisation of the experimental set-up and performance of most of the electro-chemical measurements done by F. Baron, chemical engineer graduation work at Zipperling Kessler Co, Ahrcnsbtirg, 1993. 

The fact that mesonic X-ray intensity patterns are sometimes dependent on chemical environments is an interesting topic in mesonic chemistry. When the relative line intensities of mesonic X-rays are considered in such cases, systematic differences are found between different compounds of the same element. The chemical effect on muonic X-ray patterns was first discovered by Zinov et al. and by Kessler et al. 

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