Topographical surface patterning with block copolymer stamps

Guo, Leiming; Steinhart, Martin

doi:10.1016/j.apsusc.2023.158209

Cited by 2 publications

(2 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We assume that the contour of the stamped features is most efficiently adjusted by the size and the shape of the stamps’ contact elements, as demonstrated for porous stamps used to deposit solution‐based inks. [ 60 ] It should also be noted that chemical surface modification, for example by silanes or thiols, to tune the surface wettability of the receiving counterpart substrate might be not feasible in the context of high‐temperature capillary stamping since the surface modification might not be stable at the applied temperatures. Furthermore, we did not find systematic differences in the diameters of P(VDF‐TrFE) microdots stamped on Al‐coated Si wafers (Table S3 and Figure S8, Supporting Information) and on glass substrates (Table S5 and Figure S13, Supporting Information).…”

Section: Discussionmentioning

confidence: 99%

“…The shapes of the polymer microdots appear to be related to the shape of the protruding contact elements of the polymer/npAu composite stamps. As it is commonly the case for stamp‐based contact‐lithographic methods, the main lever to modify the contours of the deposited features would be a correspondingly modified topography of the contact surfaces of the stamps (for porous stamps see, for example, Guo and Steinhart [ 60 ] ).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

High‐Temperature Melt Stamping of Polymers Using Polymer/Nanoporous Gold Composite Stamps

Periz,

Geuß,

Mameka

et al. 2024

Small

Self Cite

View full text Add to dashboard Cite

Parallel lithographic deposition of polymers onto counterpart substrates is a widely applied surface manufacturing operation. However, polymers may only be soluble in organic solvents or are insoluble at all. Solvent evaporation during stamping may trigger hardly controllable capillarity‐driven flow processes or phase separation, and polymer solutions may spread on the counterpart substrates. Solvent‐free stamping of melts prevents these drawbacks. Here, a stamp design for the deposition of melts is devised, which intrinsically circumvents ink depletion. The stamps’ topographically patterned contact surfaces with protruding contact elements contacting the counterpart substrates consist of a nanoporous gold layer with a thickness of a few micrometers. The nanoporous gold layer is attached to a molten polymer layer, which is support for the nanoporous gold layer and ink reservoir at the same time. The nanoporous gold layer in turn stabilizes the topography of the stamps’ contact surfaces. As examples, arrays of submicron microdots of polystyrene and poly(vinylidenefluoride‐trifluoroethylene) (PVDF‐TrFE) are manufactured. The P(VDF‐TrFE) microdots are partially crystalline, ferroelectric, and can be locally poled. It is envisioned that the methodology reported here can be automatized and may be extended to functional low‐molecular‐mass compounds, such as active pharmaceutical ingredients.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

High‐Temperature Melt Stamping of Polymers Using Polymer/Nanoporous Gold Composite Stamps

Periz,

Geuß,

Mameka

et al. 2024

Small

Self Cite

View full text Add to dashboard Cite

show abstract

A review on nanocomposite coatings in dentistry

Aktas,

Puchert,

Vurucu

et al. 2024

J Mater Sci

View full text Add to dashboard Cite

Nanocomposite coatings have garnered significant attention for their potential applications in various fields, including dentistry. These coatings consist of a base matrix, typically a polymer, ceramic, or metal, embedded with nanoparticles that confer enhanced properties do not present in the bulk material. By incorporating nanoparticles into a suitable matrix, these coatings exhibit superior properties including bioactivity, wear resistance, corrosion resistance, antibacterial activity, and drug release capabilities. This review specifically covers the application of nanocomposites as (1) bioactive/osteoconductive coatings, (2) antibacterial/antimicrobial nanocomposite coatings, (3) tribological/corrosion protection nanocomposite coatings, and (4) drug delivery nanocomposite coatings.

show abstract

Topographical surface patterning with block copolymer stamps

Cited by 2 publications

References 56 publications

High‐Temperature Melt Stamping of Polymers Using Polymer/Nanoporous Gold Composite Stamps

High‐Temperature Melt Stamping of Polymers Using Polymer/Nanoporous Gold Composite Stamps

A review on nanocomposite coatings in dentistry

Contact Info

Product

Resources

About