Special Issue "Lithography with polymer stamp techniques"

A special issue of Polymers (ISSN 2073-4360).

Deadline for manuscript submissions: 16 September 2019

Special Issue Editors

Guest Editor
Dr. Michael Hirtz

Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF), Karlsruhe, Germany
Website | E-Mail
Interests: scanning probe lithography (SPL); bioactive surface functionalization; sensor and device functionalization
Guest Editor
Prof. Harald Fuchs

University of Münster, Physical Institute and Center for Nanotechnology (CeNTech), Münster, Germany
Website | E-Mail
Interests: nano(bio-)technology; scanning probe methods; self-organized functional organic systems; surface chemistry

Special Issue Information

Dear Colleagues,

Surface functionalization with polymer stamps has come a long way, from implementation in microcontact printing enabling large area surface patterning in the microscale by hand, to current scanning probe techniques, such as in polymer pen lithography in highly-controlled nanoscale precise setups. Additionally, polymers play important roles as substrates in structuring methods, such as micro- and nanoimprint lithography.

This very diverse field of techniques found wide adoption in many applications, ranging from surface functionalization for biological experiments over biomedical applications, e.g., in patterning of microfluidic chips, to applications in device functionalization and printable electronics.

The aim of this Special Issue is to collect a number of research and review papers that can depict the state-of-the-art in the various types of lithography methods involving polymer stamps, probes or substrates. Especially, the demonstration of inventive applications of such techniques in the life sciences for biological or biomedical purposes, as well as in printable electronics for results not easily addressable with standard lithographic methods, are welcome contributions. We hope to enable a stimulating exchange on this focus topic and are looking forward to receiving your interesting and insightful manuscripts.

Dr. Michael Hirtz
Prof. Harald Fuchs
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1500 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Polymer Stamp Lithography,
  • Polymer Pen Lithography,
  • Scanning Probe Lithography,
  • Nanoimprint Lithography,
  • Surface Functionalization,
  • Device Functionalization,
  • Printable Electronics

Published Papers (4 papers)

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Research

Open AccessArticle Polymer Pen Lithography-Fabricated DNA Arrays for Highly Sensitive and Selective Detection of Unamplified Ganoderma Boninense DNA
Polymers 2019, 11(3), 561; https://doi.org/10.3390/polym11030561
Received: 26 February 2019 / Revised: 19 March 2019 / Accepted: 22 March 2019 / Published: 25 March 2019
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Abstract
There is an increasing demand for lithography methods to enable the fabrication of diagnostic devices for the biomedical and agri-food sectors. In this regard, scanning probe lithography methods have emerged as a possible approach for this purpose, as they are not only convenient, [...] Read more.
There is an increasing demand for lithography methods to enable the fabrication of diagnostic devices for the biomedical and agri-food sectors. In this regard, scanning probe lithography methods have emerged as a possible approach for this purpose, as they are not only convenient, robust and accessible, but also enable the deposition of “soft” materials such as complex organic molecules and biomolecules. In this report, the use of polymer pen lithography for the fabrication of DNA oligonucleotide arrays is described, together with the application of the arrays for the sensitive and selective detection of Ganoderma boninense, a fungal pathogen of the oil palm. When used in a sandwich assay format with DNA-conjugated gold nanoparticles, this system is able to generate a visually observable result in the presence of the target DNA. This assay is able to detect as little as 30 ng of Ganoderma-derived DNA without any pre-amplification and without the need for specialist laboratory equipment or training. Full article
(This article belongs to the Special Issue Lithography with polymer stamp techniques)
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Open AccessArticle Design and Fabrication by Thermal Imprint Lithography and Mechanical Characterization of a Ring-Based PDMS Soft Probe for Sensing and Actuating Forces in Biological Systems
Polymers 2019, 11(3), 424; https://doi.org/10.3390/polym11030424
Received: 31 January 2019 / Revised: 25 February 2019 / Accepted: 28 February 2019 / Published: 5 March 2019
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Abstract
In this paper, the design, fabrication and mechanical characterization of a novel polydimethylsiloxane (PDMS) soft probe for delivering and sensing forces in biological systems is proposed. On the basis of preliminary finite element (FEM) analysis, the design takes advantage of a suitable core [...] Read more.
In this paper, the design, fabrication and mechanical characterization of a novel polydimethylsiloxane (PDMS) soft probe for delivering and sensing forces in biological systems is proposed. On the basis of preliminary finite element (FEM) analysis, the design takes advantage of a suitable core geometry, characterized by a variable spring-like ring. The compliance of probes can be finely set in a wide range to measure forces in the micronewton to nanonewton range. In particular, this is accomplished by properly resizing the ring geometry and/or exploiting the mixing ratio-based elastic properties of PDMS. Fabrication by the thermal imprint lithography method allows fast and accurate tuning of ring sizes and tailoring of the contact section to their targets. By only varying geometrical parameters, the stiffness ranges from 1080 mNm−1 to 50 mNm−1, but by changing the base-curing agent proportion of the elastomer from 10:1 to 30:1, the stiffness drops to 37 mNm−1. With these compliances, the proposed device will provide a new experimental tool for investigating force-dependent biological functions in sensory systems. Full article
(This article belongs to the Special Issue Lithography with polymer stamp techniques)
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Open AccessArticle Design of Elastomer-CNT Film Photoactuators for Nanolithography
Polymers 2019, 11(2), 314; https://doi.org/10.3390/polym11020314
Received: 15 January 2019 / Revised: 7 February 2019 / Accepted: 9 February 2019 / Published: 13 February 2019
Cited by 1 | PDF Full-text (2587 KB) | HTML Full-text | XML Full-text
Abstract
Polymer pen lithography (PPL) is an approach to multiplexing scanning probe lithography, in which an array of probes on a compliant film-coated rigid substrate are used to write patterns on a surface. Recently, it was shown that these nominally passive pen arrays can [...] Read more.
Polymer pen lithography (PPL) is an approach to multiplexing scanning probe lithography, in which an array of probes on a compliant film-coated rigid substrate are used to write patterns on a surface. Recently, it was shown that these nominally passive pen arrays can be rendered photo-active by making them out of a polydimethylsiloxane (PDMS)–carbon nanotube (CNT) composite. While such photoactuated pens in principle represent a rapid, maskless, and versatile nanomanufacturing strategy, a key challenge that remains is learning how to effectively control the writing of each pen, individually. In this research, we studied the design of PDMS–CNT thin-film photoactuators and experimentally explored the role of illumination radius, film thickness, and CNT concentration. Additionally, we have proposed a model that predicts actuation efficiency, actuation time, and the crosstalk between pens. Based upon these results, we have generated a map of working efficiency to elucidate the ideal choice for specific actuation requirements. This work lays the foundation for studying further photoactuatable composite films as actuators in applications beyond lithography including soft robotics and adaptive optics. Full article
(This article belongs to the Special Issue Lithography with polymer stamp techniques)
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Open AccessArticle A Facile Approach for Fabricating Microstructured Surface Based on Etched Template by Inkjet Printing Technology
Polymers 2018, 10(11), 1209; https://doi.org/10.3390/polym10111209
Received: 18 September 2018 / Revised: 26 October 2018 / Accepted: 29 October 2018 / Published: 31 October 2018
Cited by 2 | PDF Full-text (11315 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
Microstructures are playing an important role in manufacturing functional devices, due to their unique properties, such as wettability or flexibility. Recently, various microstructured surfaces have been fabricated to realize functional applications. To achieve the applications, photolithography or printing technology is utilized to produce [...] Read more.
Microstructures are playing an important role in manufacturing functional devices, due to their unique properties, such as wettability or flexibility. Recently, various microstructured surfaces have been fabricated to realize functional applications. To achieve the applications, photolithography or printing technology is utilized to produce the microstructures. However, these methods require preparing templates or masks, which are usually complex and expensive. Herein, a facile approach for fabricating microstructured surfaces was studied based on etched template by inkjet printing technology. Precured polydimethylsiloxane substrate was etched by inkjet printing water-soluble polyacrylic acid solution. Then, the polydimethylsiloxane substrate was cured and rinsed, which could be directly used as template for fabricating microstructured surfaces. Surfaces with raised dots, lines, and squares, were facilely obtained using the etched templates by inkjet printing technology. Furthermore, controllable anisotropic wettability was exhibited on the raised line microstructured surface. This work provides a flexible and scalable way to fabricate various microstructured surfaces. It would bring about excellent performance, which could find numerous applications in optoelectronic devices, biological chips, microreactors, wearable products, and related fields. Full article
(This article belongs to the Special Issue Lithography with polymer stamp techniques)
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