Dyes

News Dyes

• New study shows people used natural dyes to colour their clothing thousands of years ago
  

  Even thousands of years ago people wore clothing with colourful patterns made from plant and animal-based dyes. Chemists from Martin Luther University Halle-Wittenberg (MLU) have created new analytical methods to examine textiles from China and Peru that are several thousand years old. In the scient more

• That's 'sew' smart!
  

  Tufts University engineers have developed a novel fabrication method to create dyed threads that change color when they detect a variety of gases. The researchers demonstrated that the threads can be read visually, or even more precisely by use of a smartphone camera, to detect changes of color due more

• Self-assembling nanomaterial a pathway to more efficient, affordable harnessing of solar power
  

  Solar rays are a plentiful, clean source of energy that is becoming increasingly important as the world works to shift away from power sources that contribute to global warming. But current methods of harvesting solar charges are expensive and inefficient--with a theoretical efficiency limit of 33 p more

White papers Dyes

• New since 5000 years
  

  Although the ancient Egyptians already used inks 5000 years ago, inks and their properties have been continuously improved and refined over thousands of years. more

• X--ray Fluorescence Analysis of Polymers
  

  This White Paper examines to what extent X-ray fluorescence analysis is an appropriate technique for the elemental analysis of polymers more

Infographics Dyes

The Chemistry of Highlighter Colours

If you’re currently a student, then you’ll no doubt often make ample use of highlighters during revision. Even if your studying days are far behind, you probably still use them from time to time. But what are the chemicals behind their luminous colours? This graphic looks at some of the possible dye more

The Chemistry of Glow Sticks

Everyone’s familiar with glow sticks, but it’s likely that fewer are familiar with the chemistry behind their glow. You may have wondered what happens when you snap a glow stick to activate it; by doing this, you’re actually kicking off a chemical process that eventually leads to the production of t more

The Key Chemicals in Red Wine

Red wine has been espoused over the years for its supposed health benefits, from claims that it could let us live to 150, to assertions that chemicals within it can help prevent cancer. Whilst these are no doubt a very pleasant means to justify a glass of wine (or several), how correct are they? Sim more

Publications Dyes

• A simple and versatile strategy for realizing bright multicolor mechanoluminescence

  Multicolor mechanoluminescence(ML) is first realized by using the stable organic blue ML emitter N-henylcarbazole as host matrix. It is claimed that a good ML host should have a moderate melting point and can dissolve or disperse organic dyes but maintain high ML activity and crystallinity. This str more

• A bifunctional cationic metal–organic framework based on unprecedented nonanuclear copper(II) cluster for high dichromate and chromate trapping and highly efficient photocataly ...

  A bifunctional cationic metal–organic framework {[Cu9(OH)6Cl2(itp)6(1,4-bdc)3](NO3)2(OH)2·20H2O}n (1-NO3-OH·20H2O) was synthesized and characterized (itp = 1-imidazol-1-yl-3-(1,2,4-triazol-4-yl)propane, 1,4-bdc = 1,4-benzenedicarboxylate). In 1-NO3-OH·20H2O, three [Cu3(μ3-OH)(μ2-OH)] trimeric cluste more

• Molecules, Vol. 23, Pages 1563: Interference of Quercetin on Astragalus Polysaccharide-Induced Macrophage Activation

  Molecules, Vol. 23, Pages 1563: Interference of Quercetin on Astragalus Polysaccharide-Induced Macrophage Activation Molecules doi: 10.3390/molecules23071563 Authors: Zhi-Peng Li Hong-Bing Liu Quan-Wei Zhang Li-Feng Li Wan-Rong Bao Dik-Lung Ma Chung-Hang Leung Zhao-Xiang Bian more