I know about edible microchips, but can we develop injectable sensors that insert inside body for detection purposes?
Microchips for medicine delivery to target cell treatment is actually possible. This happens when the intelligent chip is implanted inside the body on a tissue and the injection inside the micro wells will be release as per design within a given time interval. The duties of this what we call it intelligent medicine delivery is to release the drug in precise amount and time, receiving the physiological response to the drug and lastly transmitting this information to the data logger out side the patient using its wireless transmitter. In the case of microchips that is injected in the blood stream is a more advanced one and is very effective in treating defective moving cells like WBC, RBC or other moving microbial.
YOU need to avoid an immuneresponse, therefore enzymes and other biological recognition parts should be 'hiden' from immune system, e.g. covered by biocompatible polymers, e.g. by polypyrrole. Several biocompatibility of polypyrrole aproving articles are attached.
Article Evaluation of cytotoxicity of polypyrrole nanoparticles synt...
Article Some biocompatibility aspects of conducting polymer polypyrr...
Article Redox enzyme – glucose oxidase – initiated synthesis of polypyrrole
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Article Biocompatibility of polypyrrole particles: An in-vivo study in mice
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