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Dopamine-Induced Surface Functionalization for the Preparation of Al–Ag Bimetallic Microspheres

“…The equilibrium shifts to quinine under alkaline conditions. 14 The C 1s core-level spectrum clearly shows that the groups (-OH, ¼O, and -NH 2 ) are introduced to the surface of aluminum microspheres. The deposition of polydopamine on the surface of aluminum microspheres is further verified by the N 1s core level spectrum, as shown in Figs.…”

Size-dependent magnetic moments in ultrafine diamagnetic systems

“…A set of amazing independent experimental results on the ferromagneticlike properties of otherwise diamagnetic materials, both in metals 1-9 and metal compounds, [10][11][12][13][14][15][16][17] have been recently published. There are several remarkable phenomena observed in these systems that conflict with our basic knowledge about magnetism.…”

“…The second important feature is that the magnetization between 5 and 300 K observed in these systems is almost independent of temperature. 2,8,16,[18][19][20][21] It seems that the exchange interactions between magnetic moments are not the mechanism for the ferromagneticlike behaviors. Instead, it indicates that there is an extremely high anisotropy blocking the magnetic moments.…”

Direct electron beam writing of Bragg gratings in exciton polariton waveguides of organic dye nanofibers

“…Various organic nanofibers self-assembled from dye molecules have been found to function as efficient active waveguides that propagate fluorescence (FL) along the fibers for hundreds of micrometers. [1][2][3][4][5][6][7] Recent studies on the mechanism of the active waveguiding have shown that in some such nanofibers, the FL couples with excitons and propagates as lower branch exciton polaritons (EPs). 8,9 Because of the capability of the EP waveguides to manipulate an optical signal at subwavelength scale, they have promising applications in miniaturized optical circuits.…”