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Spotlight December 2022: Fighting tumors with micro robots
When we, the DaNa team as operators of the website nanopartikel.info, write about nanobots, i.e. nanometre-sized machines, we point out that these machines belong to science fiction, may even remain a utopia – i.e. never realisable. On the significantly larger micro-scale, however, small machines are conceivable that could help in the therapy of diseases, e.g. cancer. Such an approach is now presented by S. Schürle from ETH Zurich, who is developing magnetically controllable microrobots. She is using naturally occurring bacteria that have a magnetic “core” and with the help of which they can be steered to the target as microrobots.
This approach is not entirely new in terms of the basic idea, but it is significantly improved by the Zurich working group because rotating magnetic fields are used to make the bacteria rotate. The impression is that the microrobots now work like micro-drilling machines and drill their way non-destructively between cells to get from blood vessels through the blood vessel wall to tumour cells. You can read about the results she has achieved and the new approaches S. Schürle is exploring on the ETH Zurich website and in the original publication cited there (Gwisai T, Mirkhani N, Christiansen MG, Nguyen TT, Ling V, Schuerle S: Magnetic torque-driven living microrobots for increased tumour infiltration, Science Robotics 26 October 2022, doi: https://doi.org/10.1126/scirobotics.abo0665)
Weitere Spotlights
Spotlight October 2022: The titanium dioxide debate – why the current ECHA and EFSA hazard classification should be questioned
Due to various reports and scientific studies, titanium dioxide (TiO2)was also banned in Europe this year (2022) for use as a food additive with the indication that it could possibly be carcinogenic to humans. Although no case of tumour induction in humans has been reported since the use of this material in micro but also […]
Read moreSpotlight August 2020: The nanoGRAVUR Grouping approach
In August, we would like to present a paper of the German BMBF project nanoGRAVUR. nanoGRAVUR dealt from 2015-2018 with the grouping of nanostructured materials with regard to occupational safety, consumer and environmental protection and risk mitigation. The approach is now described by the project partners in this paper.Due to the variety of synthetic nanomaterials and the numerous modifications (differences in size, shape, chemical composition and surface functionalization), the effort required to investigate effects and behaviour within the framework of regulatory requirements is…
Read moreSpotlight Juli 2020: “Nanosafety – More than just regulatory processes”
Nanosafety is more than just a compulsory aspect of nanomaterials research and regulation. This research area also has great potential to drive new innovations. It is exactly this perspective that is addressed in the special issue “Rethinking Nanosafety: Harnessing Progress and Driving Innovation” by Chen et al. 2020. The article illustrates that especially in the field of […]
Read moreSpotlight September 2020: Groundwater remediation with Carbo-Iron® – Risk or Benefit?
In September we would like to present a paper of the BMBF project Fe-Nanosit. The project dealt with the use of iron-containing nanomaterials in groundwater and wastewater remediation. A comprehensive assessment and weighing of benefits and possible environmental risks resulting from the application is now presented by the project partners in this paper. Groundwater is indispensable for the […]
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