A New Production Process of Organic Pigment Nanocrystals

Functional Organic Nanocrystals

“…Based on the literature (Ujiiye-Ishii et al, 2006), the system using a pulsation-free pump was built. In this newly developed reprecipitation method, it increased the preparation amount of nanocrystals by 104-106 times (Miyashita et al, 2008). The organic pigment nanocrystals prepared by the reprecipitation method were finer in monodispersed property, compared to the conventional products.…”

Organic Nanocrystals for Nanomedicine and Biophotonics

“…Therefore, we can directly measure the physiochemical properties of crystals as the liquid dispersions, or we can fabricate the nanocrystals-layered structure by collecting these nanocrystals from dispersion (Masuhara et al, 2001). Until now, our scientific endeavour revealed the size-controlled and size-dependent optoelectrical properties of functional organic nanocrystals such as nonlinear optical materials (Nakanishi & Katagi, 1998), π-conjugate functional dyes (Kasai et al, 1996), organic pigment for colour filter of liquid crystal display (Miyashita et al, 2008), and fullerene (Masuhara et al, 2009). Recently, numerous researches focusing on the optoelectrical property of organic nanocrystals have been reported by several groups (Zhao et al, 2008.…”

Fabrication and Characterization of S-Benzyldithiocarbazate Schiff Base Microcrystals by a Reprecipitation Method for Enhanced Antibacterial Activity

“…This interest arises largely from the observation that their unique size-dependent optical, electronic, and chemical properties differ from those of either their single molecules or their bulk crystals (Jortner and Rao, 2002;Chiang et al, 2012;Indrasti et al, 2020). The excitement of nanoscience and the potential applications of these microcrystals are now driving intensive research activities, and organic nano-/microcrystals are now finding a broad range of applications in the areas of lithography (Magdassi and Moshe, 2003), organic photoconductors (Miyashita et al, 2008) and pharmaceutical formulations for drug delivery and biomedical applications (Kumar and Lal, 2014).…”