In situ Chelation of Monoazo Dyes in Human Hair Keratin Fibers Using Environmentally Benign Metal Ions

2021 ◽  
Author(s):  
Tova N. Williams ◽  
Malgorzata Szymczyk ◽  
Harold S. Freeman
Keyword(s):  
Metal Ions ◽  
Human Hair ◽  
Environmentally Benign ◽  
Hair Keratin ◽  
Keratin Fibers ◽  
Monoazo Dyes

Ruthenium Red Staining of Human Hard Keratin Fibers

1982 ◽  
Vol 40 ◽  
pp. 278-279
Author(s):  
M. C. Buhrer ◽  
R. A. Mathews
Keyword(s):  
Human Hair ◽  
Ruthenium Red ◽  
Acid Mucopolysaccharides ◽  
Biochemical Studies ◽  
Keratin Fibers ◽  
Ruthenium Red Staining ◽  
Extracellular Materials

Ruthenium red has been used as a stain to demonstrate a variety of extracellular materials, especially acid mucopolysaccharides. It also reacts with certain intracellular and extracellular lipids. Since biochemical studies in our laboratory demonstrated the presence of a variety of monosaccharides in human hair ruthenium red staining procedures were adopted in order to evaluate the presence and morphological location of acid oligosaccharides in the keratinized aspect of hair.

Laccase-Mediated In Situ Oxidation of Dopamine for Dyeing of Human Hair

2021 ◽  
Vol 22 (1) ◽  
pp. 141-148
Author(s):  
Weini Jia ◽  
Shirong Li ◽  
Zhengxin Luo ◽  
Hainan Yu ◽  
Wenjun Zhu ◽  
...  
Keyword(s):  
Human Hair ◽  
In Situ Oxidation

Separation of phenols from oils using deep eutectic solvents and ionic liquids

2020 ◽  
Vol 92 (10) ◽  
pp. 1717-1731
Author(s):  
Yucui Hou ◽  
Zhi Feng ◽  
Jaime Ruben Sossa Cuellar ◽  
Weize Wu
Keyword(s):  
Ionic Liquids ◽  
Phenolic Compounds ◽  
High Efficiency ◽  
Deep Eutectic Solvents ◽  
Environmentally Benign ◽  
Organic Chemical ◽  
Environmental Friendliness ◽  
Oil Mixtures ◽  
Organic Chemical Industry

AbstractPhenolic compounds are important basic materials for the organic chemical industry, such as pesticides, medicines and preservatives. Phenolic compounds can be obtained from biomass, coal and petroleum via pyrolysis and liquefaction, but they are mixtures in oil. The traditional methods to separate phenols from oil using alkaline washing are not environmentally benign. To solve the problems, deep eutectic solvents (DESs) and ionic liquids (ILs) have been developed to separate phenols from oil, which shows high efficiency and environmental friendliness. In this article, we summarized the properties of DESs and ILs and the applications of DESs and ILs in the separation of phenols and oil. There are two ways in which DESs and ILs are used in these applications: (1) DESs formed in situ using different hydrogen bonding acceptors including quaternary ammonium salts, zwitterions, imidazoles and amides; (2) DESs and ILs used as extractants. The effect of water on the separation, mass transfer dynamics in the separation process, removal of neutral oil entrained in DESs, phase diagrams of phenol + oil + extractant during extraction, are also discussed. In the last, we analyze general trends for the separation and evaluate the problematic or challenging aspects in the separation of phenols from oil mixtures.

Metal in situ surface functionalization of polymer-grafted-carbon nanotube composite membranes for fast efficient nanofiltration

2017 ◽  
Vol 5 (2) ◽  
pp. 583-592 ◽  
Author(s):  
Faizal Soyekwo ◽  
Qiugen Zhang ◽  
Runsheng Gao ◽  
Yan Qu ◽  
Ruixue Lv ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Carbon Nanotube ◽  
Metal Ions ◽  
Surface Functionalization ◽  
Heavy Metal Ions ◽  
Composite Membranes ◽  
Carbon Nanotube Composite

Metal in situ surface functionalized PEI-g-MWCNT membranes are facilely prepared for nanofiltration of heavy metal ions in solution with high fluxes.

scholarly journals Does erythropoietin modulate human hair follicle melanocyte activities in situ?

2010 ◽  
Vol 19 (1) ◽  
pp. 65-67 ◽  
Author(s):  
EnikÅ‘ Bodó ◽  
Friederike Wiersma ◽  
Wolfgang Funk ◽  
Arno Kromminga ◽  
Wolfgang Jelkmann ◽  
...  
Keyword(s):  
Hair Follicle ◽  
Human Hair ◽  
Human Hair Follicle
Sign in / Sign up

Export Citation Format

Share Document