• Knowledge Base

    Carbon black in tires, quantum dots in LEDs or titanium nitride in PET bottles ...
    Our knowledge base provides information on products and applications of nanomaterials, illuminates health and environmental aspects.

  • News

    News and information around the topic of nanotechnology.

  • Research

    Research regarding the impacts of nanoparticles on people and the environment is needed. The German Federal Ministry of Education and Research funds projects to fill knowledge gaps and to initiate measures to identify and minimize risk.

  • Nano Basics

    Basic information about nanomaterials for humans and the environment.


Welcome to DaNa

Data on new, innovative and safe application related materials


SOPs & Lab Protocols

can be found here !

question to expert

Ask our experts!

Nanoparticles in food additive E551

JRC scientists have proposed a systematic, sequential evaluation scheme involving the use of different techniques for the assessment of the presence of nanoparticles (NPs) in food-grade synthetic amorphous silica (SAS), usually coded as food additive E551.


Current EC Regulation, 1169/2011 on the provision of food information to consumers foresees indicating on the food product label if ingredients (e.g. additives) in the nanoform are used. The appropriate implementation of such legislation is based on the availability of reliable methods for detection and quantification of nanoparticles in food. SAS has been traditionally used as food additive under the code E551; however, there is still a lack of detailed methodologies for the determination of SAS' particle size and concentration.

 In this work, a methodological approach is proposed based on a set of systematic analyses of a variety of commercial E551 samples with various techniques such as Dynamic Light Scattering (DLS), Multi-Angle Light Scattering (MALS), Asymmetric Flow Field Flow Fractionation (AF4), Inductively Coupled Plasma Mass Spectrometry (ICPMS) and Transmission Electron Microscopy (TEM). The proposed sequential order is based primarily not only on the requirement of increasing the amount of information, achieving better resolution and greater sensitivity, but also on the increasing complexity, duration of analysis and cost.

 Given that the dynamic size application range is limited by the minimum detectable size, all the techniques considered in this work can only be used as positive tests to indicate the presence of nanoparticles in the food additive samples.



Current Research

Graphene interlayer © bonninturina / fotolia.com

Information on the sponsorship programmes of the German Federal Ministry of Education and Research on nanotechnologies for humans and the environment.


Knowledge Base

nano © eccolo / fotolia.com

A database with important and generally understandable aspects on health and environment of applied nanomaterials as well as facts on the safety of manufactured nanomaterials.


Nano Basics

Graphene © arsdigital / fotolia.com

The chapters on release, exposure, uptake and behavior of nanomaterials in the human body and in the environment as well as the risk assessment will give you a first overview.



Cookies make it easier for us to provide you with our services. With the usage of our services you permit us to use cookies.