ArticleLangmuir : the ACS journal of surfaces and colloids2022
Wafer-Scale Particle Assembly in Connected and Isolated Micromachined Pockets via PDMS Rubbing.
Article in Langmuir : the ACS journal of surfaces and colloids, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 13 citations in OpenAlex.
- Dry versus Wet Particle Assembly: Toward Solvent-Free Fabrication.ACS applied materials & interfaces · 2025Review
- Navigating the Landscape of Dry Assembling Ordered Particle Structures: Can Solvents Become Obsolete?Small (Weinheim an der Bergstrasse, Germany) · 2024Review
- Toward the Assembly of 2D Tunable Crystal Patterns of Spherical Colloids on a Wafer-Scale.ACS applied materials & interfaces · 2024Article
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The present contribution reports on a study aiming to find the most suitable rubbing method for filling arrays of separated and interconnected micromachined pockets with individual microspheres on rigid, uncoated silicon substrates without breaking the particles or damaging the substrate. The explored dry rubbing methods generally yielded unsatisfactory results, marked by very large percentages of empty pockets and misplaced particles. On the other hand, the combination of wet rubbing with a patterned rubbing tool provided excellent results (typically <1% of empty pockets and <5% of misplaced particles). The wet method also did not leave any damage marks on the silicon substrate or the particles. When the pockets were aligned in linear grooves, markedly the best results were obtained when the ridge pattern of the rubbing tool was moved under a 45° angle with respect to the direction of the grooves. The method was tested for both silica and polystyrene particles. The proposed assembly method can be used in the production of medical devices, antireflective coatings, and microfluidic devices with applications in chemical analysis and/or catalysis.
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Registered trials
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