Electrospray Ionization is a well-known technique in the field of mass spectrometry for molecular ionization1. The phenomenon of electrospray involves the atomization of the liquid into tiny droplets under the influence of an externally applied electric potential and has been studied for more than a hundred years. The microdroplets originating from electrospray have become an exciting subject area having a vast number of applications, including but not limited to the synthesis of molecules2, pharmaceutical products3 and nanomaterials4.
The science of nanomaterials, especially noble metal nanomaterials, has expanded into almost every area of materials science5· 7• The properties of these materials are heavily dependent on their size and shape. Therefore, it is crucial to synthesize monodisperse nanoparticles. Digestive ripening is one of the most commonly used methods in this regard. This method typically involves hightemperature annealing needing to reflux NP suspensions for extended periods to achieve monodispersity8. In this seminar, I would like to demonstrate a fast method of making monodisperse silver NPs by electrospraying highly polydisperse NPs synthesized in solution under ambient conditions within seconds.
References:
1. P. Chakraborty and T. Pradeep, NPG Asia Mater., 2019, 11, 48-70.
2. X. Yan, R. M. Bain and R. G. Cooks, Angew. Chem., Int. Ed., 2016, 55, 12960-12972.
3. s. Banerjee and R. N. Zare, Angew. Chem., Int. Ed., 2015, 54, 14795-14799.
4. D. Sarkar, M. K. Mahitha, A. Som, A. Li, M. Wleklinski, R. G. Cooks and T. Pradeep, Adv. Mater., 2016, 28,
2223-2228.
5. R. Jin, C. Zeng, M. Zhou and Y. Chen, Chem. Rev., 2016, 116, 10346- 10413.
6. X. Chen and S. S. Mao, Chem. Rev., 2007, 107, 2891-2959.
7.1. Chakraborty and T. Pradeep, Chem. Rev., 2017, 117, 8208-8271.
8. J. R. Shimpi, D. S Sidhaye and B. L. V. Prasad, Langmuir, 2017, 33, 9491-9507.