“…We have developed, so far, microcapsules with functions for separation and purification [2][3][4][5][6][7], controlled release of drugs [8][9][10][11][12][13][14][15][16][17][18][19][20], and the triboelectric property required by toner microparticles [21,22]. Hollow microcapsules and microcapsules enclosing microorganisms have also been prepared [23,24].…”