The pen is mightier not only than sword but also than all the traditional sensor equipments.

            Joseph Wang and his team developed a new tool with help of nano engineering is opening a door to an era when anyone will be able to build sensors. They have developed high-tech bio-inks that react with several chemicals, including glucose. They filled off-the-shelf ballpoint pens with the inks and were able to draw sensors to measure glucose directly on the skin and sensors to measure pollution on leaves. Reference:  Bandodkar, A. J., Jia, W., Ramírez, J. and Wang, J. (2015), Biocompatible Enzymatic Roller Pens for Direct Writing of Biocatalytic Materials: “Do-it-Yourself” Electrochemical Biosensors. Advanced Healthcare Materials.

 Link to original research paper: http://onlinelibrary.wiley.com/doi/10.1002/adhm.201400808/abstract

Link to general article at phys.org: http://phys.org/news/2015-03-pens-high-tech-inks-do-it-yourself-sensors.html#jCp

Science Cartoon by Vishal K. Muliya is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.Based on a work at https://vkmuliya.blogspot.com.

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