Can nanoparticles be released from nano-finished sinks or washbowls and the like and can they pass into the body?
Most of such nano-finished sanitary ware is surface-structured and exhibits the dirt-repellent lotus effect that is typical of leaves. This effect helps keep surfaces clean or serves to make them easily cleanable. However, this is not achieved by using nanoparticles or by applying them to the respective surfaces but by treating the latter with chemicals. […]
My netbook keyboard has a coating of silver nanoparticles. Is it harmful to my health to use the netbook every day?
Question: “Are silver particles or silver ions being released?” Just as silver as a metal has hardly any effect, the silver nanoparticles on your keyboard are “without effect”. The antibacterial effect occurs as soon as silver ions are released from the particles. In fact, however, the quantity of silver used in the keyboard coatings is […]
What quantities of titanium dioxide nanoparticles are produced annually worldwide?
About 4.7 million tons of pigmentary titanium dioxide (non-nano) are produced annually. The amount of nanoscale titanium dioxide produced is less than 1 percent thereof (less than approximately 47.000 tons).
Is there a list with products containing nanoparticles
There are some websites that list producs with nanotechnology, for example: The Nanodatabase (Englisch): http://nanodb.dk/en/search-database/ The Project of Emerging Nanotechnologies (in English): https://nanotechproject.tech/cpi/ For cosmetic products labelling of “nano” ingredients is mandatory since July 2013 and for food and food contact materials since Dec 2014.
Fry pans with nanocoatings: Do nanoparticles come off during frying?
Question: “Do particles pass over into the food? Will this cause health hazards?” As a rule, cookware non-stick coatings have nothing to do with the nanoparticles discussed hereunder but consist of very heat-resistant polymers applied in layers. The effect of the surfaces obtained that way is similar to the well-known roll-off effect of the lotus […]
To what extent are nano sealings hazardous to the human organism?
To what extent are nano sealings of glass, lacquer, or metal surfaces hazardous to the human organism – during the process of sealing or later, when the surface-treated products are actually used? These are our opinions on the topic, we exclude any liability claims. The term “nano” is not protected. No one guarantees that the […]
Is it justified to approve nanobased shoe care sprays?
Question: “Shopping for shoes, I came across some kind of a nanobased shoe care spray. The substances contained are distributed as aerosols whose potential hazards are discussed in numerous articles. Considering this and the present state of knowledge, is it justified to have such sprays approved?” Since consumer safety has priority, the approval of such […]
How are nanoparticles displayed in the context of recycling management?
Topic: recycling, recovery, secondary raw material There is no difference to existing products – if they are recyclable products they are recycled. Because nanoparticles often consist of rare materials (silver nanoparticles or rare earths) it will be in the interest of the companies to recycle these materials to prevent a steep increase in the prices […]