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Thus, for larger building blocks like nanoparticles and colloids, the low surface mobilities impose an impractical upper bound on the maximum achievable separation between surface features. Here, we engineered surfaces with energy gradients that not only aided in transporting particles to target sites but also dictated the size and symmetry of the growing crystallites. Remarkably, the enhancement in particles\u2019 surface mean-free path allows control over nucleation density in a regime that cannot be accessed in conventional template-assisted growth.<\/jats:p>","DOI":"10.1073\/pnas.1608568113","type":"journal-article","created":{"date-parts":[[2016,10,11]],"date-time":"2016-10-11T21:38:53Z","timestamp":1476221933000},"page":"12094-12098","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":13,"title":["Site-specific colloidal crystal nucleation by template-enhanced particle transport"],"prefix":"10.1073","volume":"113","author":[{"given":"Chandan K.","family":"Mishra","sequence":"first","affiliation":[{"name":"Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. 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