DyStar Further Consolidates Manufacturing Operations in Americas to Accelerate Growth

29-Apr-2025 - DyStar announced the cessation of manufacturing operations at DyStar Hilton Davis with partial integration of production within DyStar LP in Reidsville, North Carolina. The latest integration will impact the production facility of DyStar Hilton Davis, which primarily manufactures Food, Drug, and ...

Evidence stacks up for poisonous books containing toxic dyes

21-Aug-2024 - If you come across brightly colored, cloth-bound books from the Victorian era, you might want to handle them gently, or even steer clear altogether. Some of their attractive hues come from dyes that could pose a health risk to readers, collectors or librarians. The latest research on these ...

Nanofibers rid water of hazardous dyes

Waste to purify water - it sounds paradoxical, but that is exactly what has now been achieved

25-Apr-2024 - Dyes, such as those used in the textile industry, are a major environmental problem. At TU Wien, efficient filters have now been developed – based on cellulose waste. Using waste to purify water may sound counterintuitive. But at TU Wien, this is exactly what has now been achieved: a special ...

Hydrogen through Sunlight

Researchers Develop Sustainable Catalyst System for Hydrogen Production Using Light Energy

15-Dec-2023 - For hydrogen to be sustainably produced using sunlight, it's not just an efficient catalyst system that's needed – it must also be economical, readily available, and resource-efficient. A team led by chemist Prof. Dr Kalina Peneva from the Institute of Organic Chemistry and Macromolecular ...

Do or dye: Synthetic colors in wastewater pose a threat to food chains worldwide

The ecological and health threats of synthetic dyes entering wastewater systems have been detailed in a new study

01-Nov-2023 - Dyes widely used in the textile, food and pharmaceutical industries pose a pressing threat to plant, animal and human health, as well as natural environments around the world, a new study has found. Billions of tons of dye-containing wastewater enter water systems every year, and a group of ...

How organic solar cells could become significantly more efficient

Turbocharger dyes: Organic dyes accelerate transport of buffered solar energy

28-Sep-2023 - The sun sends enormous amounts of energy to the earth. Nevertheless, some of it is lost in solar cells. This is an obstacle in the use of organic solar cells, especially for those viable in innovative applications. A key factor in increasing their performance: Improved transport of the solar ...

New wood-based technology removes 80% of dye pollutants in wastewater

Method can also be used against other types of pollutants

31-Mar-2023 - Researchers at Chalmers University of Technology, Sweden, have developed a new method that can easily purify contaminated water using a cellulose-based material. This discovery could have implications for countries with poor water treatment technologies and combat the widespread problem of toxic ...

Entire colour palette of inexpensive fluorescent dyes

ETH researchers create novel security inks - including red, which was previously difficult to produce

06-Jan-2023 - ETH researchers have developed a modular system for the simple and inexpensive production of security inks. It is based on polymers and could also be used in solar power plants and screens in the future. Novel fluorescent dyes developed by ETH researchers are relatively simple and inexpensive to ...

Long-Lasting, Intense Afterglow

Organic dyes with persistent delayed fluorescence and ultralong phosphorescence

20-Dec-2022 - A team of researchers from Lithuania has developed organic dyes showing a particularly long afterglow after being excited by light. Doping a polymer with newly synthesized diboraanthracene dyes resulted in an intense red or blue–green dual afterglow, which was composed of persistent thermally ...

A greener route to blue

A new method drastically reduces the amount of solvent needed to produce widely used organic dyes

02-Sep-2022 - Organic, i.e. carbon-containing dyes have important roles in nature. For example, they are responsible for transporting oxygen and other gases in the body (as part of haemoglobin) and converting solar energy into chemical energy in photosynthesis (chlorophyll). One class of artificial organic ...