Laser-Enabled Advances in Polymers

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Physics and Theory".

Deadline for manuscript submissions: 15 November 2024 | Viewed by 3327

Special Issue Editors


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Guest Editor
Innovation Centre in Photonics and Plasma for Advanced Materials and Eco-Nano Technologies, National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409 Str., 077125 Magurele Ilfov, Romania
Interests: material engineering; thin films; coatings; biointerface; laser processing; material characterization; biosensor

E-Mail Website
Guest Editor
Innovation Centre in Photonics and Plasma for Advanced Materials and Eco-Nano Technologies, National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409 Str., 077125 Magurele Ilfov, Romania
Interests: biomaterials; smart interfaces; topographical cues for cells studies; laser processing surfaces; biosensors
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Special Issue Information

Dear Colleagues,

Considering that cutting-edge, laser-enabled techniques are used to tailor the properties of both polymeric interfaces and bulk characteristics, this Special Issue, "Laser-Enabled Advances in Polymer Modification”, aims to provide a comprehensive overview of the latest breakthroughs in laser-assisted techniques for polymeric surfaces modification. The focus will be on exploring the fabrication, surface structuring, bulk modification, and chemical functionalization of polymers using lasers, fostering innovations in areas such as medical devices, electronics, aerospace, and beyond.

The topics of interest for this Special Issue include, but are not limited to:

  • Nano- and micropatterning using laser-based techniques of natural and synthetic polymers for bioplatforms, microfluidics, and sensors.
  • Investigating the 2D and 3D surface structuring of polymer, hybrid, and composite materials.
  • Exploring the laser-assisted design of nanohybrids and nanocomposites interfaces for tissue repair and controlled drug release applications.
  • Designing multifunctional interfaces for photocatalytic and environmental applications utilizing laser technology.
  • Investigating laser-enabled design approaches for multifunctional interfaces suitable for chemical and biosensor applications.
  • The laser ablation and surface functionalization of polymers for enhanced mechanical, optical, and chemical properties.
  • Laser-induced crosslinking and its impact on the bulk properties of polymers, such as mechanical strength, thermal stability, and chemical resistance.
  • The laser-based 3D printing and additive manufacturing of polymers for precise and customizable structures.

We encourage researchers and experts in the field of polymer modification to submit original research articles, reviews, and communications to this Special Issue. The aim is to foster knowledge exchange and discussions on the latest advancements in laser-enabled techniques, which hold immense potential for various industries, including biomedical, environmental, and sensor-related applications.

Dr. Anca Bonciu
Dr. Valentina Dinca
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 submissions that pass pre-check are 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 semimonthly 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 2700 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

  • laser designed interfaces
  • biomedical applications
  • photocatalytic/environmental
  • sensing

Published Papers (2 papers)

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Research

15 pages, 4122 KiB  
Article
Polypyrrole–Tungsten Oxide Nanocomposite Fabrication through Laser-Based Techniques for an Ammonia Sensor: Achieving Room Temperature Operation
by Mihaela Filipescu, Stefan Dobrescu, Adrian Ionut Bercea, Anca Florina Bonciu, Valentina Marascu, Simona Brajnicov and Alexandra Palla-Papavlu
Polymers 2024, 16(1), 79; https://doi.org/10.3390/polym16010079 - 26 Dec 2023
Viewed by 1221
Abstract
A highly sensitive ammonia-gas sensor based on a tungsten trioxide and polypyrrole (WO3/PPy) nanocomposite synthesized using pulsed-laser deposition (PLD) and matrix-assisted pulsed-laser evaporation (MAPLE) is presented in this study. The WO3/PPy nanocomposite is prepared through a layer-by-layer alternate deposition [...] Read more.
A highly sensitive ammonia-gas sensor based on a tungsten trioxide and polypyrrole (WO3/PPy) nanocomposite synthesized using pulsed-laser deposition (PLD) and matrix-assisted pulsed-laser evaporation (MAPLE) is presented in this study. The WO3/PPy nanocomposite is prepared through a layer-by-layer alternate deposition of the PPy thin layer on the WO3 mesoporous layer. Extensive characterization using X-ray diffraction, FTIR and Raman spectroscopy, scanning electron microscopy, atomic force microscopy, and water contact angle are carried out on the as-prepared layers. The gas-sensing properties of the WO3/PPy nanocomposite layers are systematically investigated upon exposure to ammonia gas. The results demonstrate that the WO3/PPy nanocomposite sensor exhibits a lower detection limit, higher response, faster response/recovery time, and exceptional repeatability compared to the pure PPy and WO3 counterparts. The significant improvement in gas-sensing properties observed in the WO3/PPy nanocomposite layer can be attributed to the distinctive interactions occurring at the p–n heterojunction established between the n-type WO3 and p-type PPy. Additionally, the enhanced surface area of the WO3/PPy nanocomposite, achieved through the PLD and MAPLE synthesis techniques, contributes to its exceptional gas-sensing performance. Full article
(This article belongs to the Special Issue Laser-Enabled Advances in Polymers)
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0 pages, 3431 KiB  
Article
Laser-Induced Graphene Formation on Polyimide Using UV to Mid-Infrared Laser Radiation
by Vitalij Fiodorov, Romualdas Trusovas, Zenius Mockus, Karolis Ratautas and Gediminas Račiukaitis
Polymers 2023, 15(21), 4229; https://doi.org/10.3390/polym15214229 - 26 Oct 2023
Viewed by 1813
Abstract
Our study presents laser-assisted methods to produce conductive graphene layers on the polymer surface. Specimens were treated using two different lasers at ambient and nitrogen atmospheres. A solid-state picosecond laser generating 355 nm, 532 nm, or 1064 nm wavelengths and a CO2 [...] Read more.
Our study presents laser-assisted methods to produce conductive graphene layers on the polymer surface. Specimens were treated using two different lasers at ambient and nitrogen atmospheres. A solid-state picosecond laser generating 355 nm, 532 nm, or 1064 nm wavelengths and a CO2 laser generating mid-infrared 10.6 µm wavelength radiation operating in a pulsed regime were used in experiments. Sheet resistance measurements and microscopic analysis of treated sample surfaces were made. The chemical structure of laser-treated surfaces was investigated using Raman spectroscopy, and it showed the formation of high-quality few-layer graphene structures on the PI surface. The intensity ratios I(2D)/I(G) and I(D)/I(G) of samples treated with 1064 nm wavelength in nitrogen atmosphere were 0.81 and 0.46, respectively. After laser treatment, a conductive laser-induced graphene layer with a sheet resistance as low as 5 Ω was formed. Further, copper layers with a thickness of 3–10 µm were deposited on laser-formed graphene using a galvanic plating. The techniques of forming a conductive graphene layer on a polymer surface have a great perspective in many fields, especially in advanced electronic applications to fabricate copper tracks on 3D materials. Full article
(This article belongs to the Special Issue Laser-Enabled Advances in Polymers)
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