Toxicity of azo-dyes combined with TiO2 nanoparticles

Azo-dyes are organices compounds frequesntly used for food colring for example in sweets. A characteristic feature of az-=dyes is the axo-group (-N=N) as part of the chromophore. In parallel, nanoparticles (NPs) are more and more used as food additives and this, the encoubter of NPs with azo-dyes is highly likely. In particular, TiO2 NPs are inciroporated into foods under the tearm E171

Nano-bio Interactions

Due to there extremely small size, nanoparticles display a unique set of characteristics, which differ significantly form bigger moieties. These characteristics also shape their interaction with biological entities. There large surface-to-volume area, for instance, makes particles in the nano- and micro-range very reactive. Clubmoss spores are an example of naturally occurring microparticles

Nanomedicine

Important and life-sustaining processes such as teh uptake, transport and metabolism of biologicla substances take place on cellular level in the human body. Diseases and disorders happening on this level can now be targeted with diagnostic and threapeutic tools in the nano-scaled size range

Nanotechnology and azo-dyes in sweets

Nanotechnology is a fast growing field and consider as a key-technology of the 21st century. Nanoparticles are not only used in high-tech products or medical devices but are also more and more incorporated in food producers, for example in sweets. In addition, for food-coloring, azo-dyes are frequently used which makes an encounter of azo-dyes and nanoparticles unavoidable, The aim of this work was the isolation and characterisation of these dyes without including nanoparticles in a selected sweet product

Nanoparticle tracking analysis

Due to their extremely small size, nanoparticles cannot be analyses by conventional approaches such as light microscopy. To visualise particles in the nanoscale range, a combination of an ultra-microscope and a laser illumination unit has to be applied. This combinatory technique is called Nanoparticle Tracking Anlysis (NTA) and can be used of thr nalysis of particles in a size range of approximately 10 nm up to 1 μm in liquid suspension

Nano-chip for cancer diagnostics

Exosomes are vesicles with a size range of 30 to 50nm, which are secreted by a cell into its surroundings..

Toxicity of azo-dyes combined with TiO2 nanoparticles

Azo-dyes are organices compounds frequesntly used for food colring for example in sweets. A characteristic feature of az-=dyes is the axo-group (-N=N)  as part of the chromophore. In parallel, nanoparticles (NPs) are more and more used as food additives and this, the encoubter of NPs with azo-dyes is highly likely. In particular, TiO2 NPs are inciroporated into foods under the tearm E171.

Nano-chip for cancer diagnostics

Exosomes are vesicles with a size range of 30 to 50 nm, which are secreted by a cell into its surroundings. They are currently investigated as possible biomarkers for teh detection of early stage cancer, infections or autoimmune siseases. To identify which exosomes could contain viable markers, they have been isolated form body fluids such as blood, urine, or salive and have subsequently undergone screening procedures Exosome isolation has, so far, been performed by ultra-centrifugation, a time-consuming prcedure that requaires large volumes of the fluid sample

Nanotechnology and azo-dyes in sweets

Nanotechnology is a fast growing field and conseidere as a key-technology of the 21st century. Nanoparticles are not only used in high-tech products or medical devices but are also more and more incorporated in food producrs, for example in sweets. In addtion, for food-coloring, azo-dyes are frequetly used which makes an encounter of azo-dyes and nanoparticles unavidable, The aim of this work was the isolation and characterisaton of these dyes without including nanoparticles in a selected sweet product.

Neat and clean

Surfactants are a common component of many cleaning products and detergents. However, the production of these surfactants often requires the use of petroleum. In nature we can find plants, such as the lotus flower, whise leaves have developer a self-cleaning mechanism. Due to nano-sized hyedrophobic wax nubs on the surface of the leaf, water droplets have only a very samll contact area. The water's surface tension subsequently leads to the droplet rolling off the leaf, taking dirt partcles with it