𝔖 Bobbio Scriptorium
✦   LIBER   ✦

NMR spectroscopic study of the Murex trunculus dyeing process

✍ Scribed by Rina C. Hoffman; Reut C. Zilber; Roy E. Hoffman


Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
159 KB
Volume
48
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

It is widely accepted that indigo dyes derived from Murex trunculus were used to produce the biblical dyes tekhelet and argaman. We describe a method of following the debromination of natural leucoindigos and their binding to wool using NMR spectroscopy. Debromination is observed prior to reaction with the wool and prior to oxidation. Binding to the wool is shown to occur prior to oxidation. NMR allows the dyeing process to be followed. This, in principle, could be used to correct problems during dyeing that would increase the reliability of the process. Copyright Β© 2010 John Wiley & Sons, Ltd.


πŸ“œ SIMILAR VOLUMES


1H NMR spectroscopic studies of the moen
✍ Lothar Hennig; Matthias Findeisen; Peter Welzel; Rainer Haessner πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 239 KB πŸ‘ 2 views

Highly resolved 1H NMR spectra of the moenomycin antibiotics can be obtained in solution D 2 O when the concentration is below the critical micelle concentration. The 600 MHz spectra are structurally highly informative.

Spectroscopic studies of the molecular i
✍ Johan Svenson; HΓ₯kan S. Andersson; Sergey A. Piletsky; Ian A. Nicholls πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 54 KB πŸ‘ 2 views

A method for the rapid estimation of the extent of complex formation in molecular imprinting prepolymerization mixtures is described. By the use of a UV spectroscopy titration procedure, apparent binding constants for such self-assembly processes have been obtained. This method was used for comparis

Study of the Leacril Dyeing Process by a
✍ E. Chibowski; A.Ontiveros Ortega; M. Espinosa-JimΓ©nez; R. Perea-Carpio; L. Holys πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 109 KB

Adsorption studies of a cationic dye, Rhodamine B, from an emulsion phase on Leacril fabric at different temperatures were conducted. The emulsion phase consisted of n-hexadecane emulsified by isopropyl alcohol (1 M) and stabilized by tannic acid. In the alcohol solution Rhodamine B was dissolved. T

Phospholipid profile of the human brain:
✍ Ingrid L. Kwee; Tsutomu Nakada πŸ“‚ Article πŸ“… 1988 πŸ› John Wiley and Sons 🌐 English βš– 238 KB

Phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, sphingomyelin, and ethanolamine plasmalogen represent the six most abundant phospholipids of brain cell membrane. The ratio of the phospholipid contents (phospholipid profile) of the brain is remarkably consiste

The diffusion NMR studies of crown ether
✍ BΕ‚aΕΌej Gierczyk; Barbara Nowak-Wydra; Grzegorz Schroeder; RadosΕ‚aw Pankiewicz πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 172 KB

## Abstract Formation of complexes between crown ethers and cyclodextrins has been studied using diffusion measurements. The structures of the complexes have been proposed on the basis of the theoretical calculations and the results obtained. Relation between the structural parameters (rings' diame