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(A-C) Low magnification (A) and high resolution TEM images of luminescent AuNPs/silica membrane formed at toluene/water interface, showing well-dispersed individual AuNPs in silica matrix. (D, E) AFM images of luminescent AuNPs/silica membrane in taping mode. (F) Line profile along the line in (D). (G) SEM image of luminescent AuNPs/silica capsules achieved via vigorously shaking of the corresponding membrane.
