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The selective adsorption of two different types of particles to a patterned surface is shown for thiol-modified gold. The far end of the alkanethiols is chemically varied and binds polymer particles with different properties—as illustrated in the Figure for charged polymer particles of different composition and size. Tuning of hydrophobicity and hydrogen bonding in this manner provides a versatile route to composite colloidal structures.
Zheng et al. (Thu,) studied this question.