Surface-enhanced Raman scattering active gold nanostructure fabricated by photochemical reaction of synchrotron radiation

Solid/liquid-interface-dependent synthesis and immobilization of copper-based particles nucleated by X-ray-radiolysis-induced photochemical reaction

“…We performed synchrotron-radiation-induced X-ray radiolysis experiments using beamline BL8S2 at the Aichi Synchrotron Radiation Center, Aichi Science and Technology Foundation (Yamaguchi et al, 2015(Yamaguchi et al, , 2016a(Yamaguchi et al, ,b, 2017(Yamaguchi et al, , 2019Saegusa et al, 2019). The storage ring current and energy were in operation at 300 mA and 1.2 GeV with super-bending magnets of 5 T. The X-ray spectrum is displayed in Fig.…”

“…Here, we focus on the preparation of metal and oxide nano/microparticles on various substrates as it is a key issue in all fields of modern science and technology covering electronics, photonics, catalysis, biotechnology and so on. Electrochemical and electroless wet chemical deposition and other methods utilizing lasers (Bae et al, 2002;Akamatsu et al, 2004), ion beams (Yamaguchi et al, 2005), electron beams (Jonah & Miller, 1977), X-rays (Ma et al, 2000;Borse et al, 2004;Karadas et al, 2005;Oyanagi et al, 2014;Yamaguchi et al, 2015Yamaguchi et al, , 2016aYamaguchi et al, ,b, 2017Yamaguchi et al, , 2019Saegusa et al, 2019;Bharti et al, 2016;Remita et al, 2007) and -rays (Bá rta et al, 2010;Dey, 2005) have also been studied for incorporating metal clusters onto substrates in the desired chemical and morphological states. In particular, photochemical processes induced by broad-sense light irradiation in heterogeneous systems have been widely used in recent years because of their easy operation and wide applications.…”

X-ray Radiolysis-based Three Dimensional Additive Manufacturing Process

“…For example, using a combination of fluidic channel on x-y stage, X-ray radiolysis with a liquid slow system can provide the additive manufacturing with nano/micro-scale functional particles within the solution. As shown in our previous study,[11] the deposition of Au cluster aggregates with activity of SERS using X-ray radiolysis of commercial Au electroplating solution could be performed. The higher-order nanostructure consisting of Au-nanoparticles fabricated by using the X-ray radiolysis process enables the SERS sensor for a small amount of molecule.…”

“…One of the candidates which can achieve the formation of composite 3D structure is considered to be a system using photochemical reaction due to laser, [4,5] γ- [6] or X-ray radiolysis. [7][8][9][10][11][12][13][14][15][16][17] In this study, we demonstrated the synthesis of nano/ [15] and Yamaguchi et al [12] have demonstrated that the synthesis of particles can be achieved by monochromatic X-ray irradiation in a metallic solution. Yamaguchi et al also have fabricated caltropshaped cupric particles [14] and functional higher-order nanostructures [11] consisting of Au nanoparticles for the surface enhanced Raman scattering (SERS).…”

“…[7][8][9][10][11][12][13][14][15][16][17] In this study, we demonstrated the synthesis of nano/ [15] and Yamaguchi et al [12] have demonstrated that the synthesis of particles can be achieved by monochromatic X-ray irradiation in a metallic solution. Yamaguchi et al also have fabricated caltropshaped cupric particles [14] and functional higher-order nanostructures [11] consisting of Au nanoparticles for the surface enhanced Raman scattering (SERS). [18] These studies open a door to investigate the physical-chemical reaction induced by the X-ray irradiation in the solution, and to develop a novel system for 3D structure formation and additive manufacturing process.…”