Recently, started helping a Ph.D. colleague for synthesizing gold nanoparticles to obtain a strain sensor. The synthetic route contains aqueous and organic phases and microphase. After mixing the solutions, to acquire nanoparticles microphase extraction is fulfilled and reduced via NaBH4. A polymeric matrix is achieved in order to avoid aggregation of gold nanoparticles and tensile test is applied.
SEM image is taken from : Zhang, Q., Xu, J. J., Liu, Y., & Chen, H. Y. (2008). In-situ synthesis of poly (dimethylsiloxane)–gold nanoparticles composite films and its application in microfluidic systems. Lab on a Chip, 8(2), 352-357.