Projekt

UV-lithography with FluorAcryl resist for generation of micro-droplet arrays

Udbyder

Vejleder

Sted

København og omegn

Project description

Creating arrays of chemicals, proteins, and cells is of great interest in many biomedical applications. Previously, the pipetting technique has been widely used to create such arrays, but more sophisticated methods for rapid array creation is possible by exploiting lithographic techniques. The idea is to avoid the sequential process of the pipetting technique in favor of a parallel approach in order to save time and effort. This is obtained by making a spatial variance in both surface chemistry and structure, so that some superhydrophobic regions shed water, while other hydrophilic regions pin water droplets. The pinning regions get wetted, while the shedding regions stay dry, leaving behind the desired array pattern.

Content

Characterization of the hydrophobic photo resist FluorAcryl 3298 : Make spin curves to find resist thickness as the function of spinner speed. Make a dose test to determine the full cross linking dose of this negative resist. Photolithography: Design a photomask with a pattern comprising an array of dots with different diameters and lattice constants and use the mask to expose the FluorAcryl resist. Preferably, define this pattern on a Si surface with a nano-grass pattern.  Characterization: Employ a contact angle goniometer with a high-speed camera to measure contact angles and roll-off angles of the structured surfaces. Test formation of micro-droplet arrays by dip-coating. Employ XPS (only master project) to characterize the surface chemistry of the exposed areas.

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Kontakt

Virksomhed/organisation

DTU Nanolab

Navn

Rafael J. Taboryski

Stilling

Lektor

Mail

rata@dtu.dk

Vejleder-info

Kandidatuddannelsen i Fysik og Nanoteknologi

Vejleder

Rafael J. Taboryski

Medvejledere

Nikolaj Kofoed Mandsberg

Type

Bachelorprojekt, Kandidatspeciale

OM DTU

DTU er et teknisk eliteuniversitet med international rækkevidde og standard. Vores mission er at udvikle og nyttiggøre naturvidenskab og teknisk videnskab til gavn for samfundet. 10.000 studerende uddanner sig her til fremtiden, og 5.700 medarbejdere har hver dag fokus på uddannelse, forskning, myndighedsrådgivning og innovation, som bidrager til øget vækst og velfærd.

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Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby


45 25 25 25

dtu@dtu.dk

CVR-nr. 30 06 09 46

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