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Nanomaterials
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Eco-Friendly Microdevice Printing Techniques with Functional Nano/Biomaterials
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Eco-Friendly Microdevice Printing Techniques with Functional Nano/Biomaterials

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Biology and Medicines".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 4538

Special Issue Editors

Dr. Sabine Portal

E-Mail Website
Guest Editor
Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC 20052, USA
Interests: nanoparticles; surface nanopatterning; photonic crystals and optical metamaterials; colorimetry; optical characterization; plasma–surface physics; sol–gel synthesis
Special Issues, Collections and Topics in MDPI journals
Dr. Carles Corbella Roca

E-Mail Website
Guest Editor
Department of Mechanical & Aerospace Engineering, George Washington University, Washington, DC 20052, USA
Interests: thin films and coatings; elementary plasma-surface processes; 2D materials; atmospheric plasmas; carbon nanostructures; plasma sources and diagnostics; plasma medicine
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

It is our pleasure to present the Special Issue “Eco-Friendly Microdevice Printing Techniques with Functional Nano/Biomaterials”, which constitutes a hot topic merging a number of exciting research lines. The Special Issue is now open for submission of contributions with focus on the synthesis and characterization of nanostructured materials obtained by sustainable deposition processes, such as additive manufacturing and drop-on-demand printing. The functional nanomaterials should exhibit special optical, electronic, thermal, and/or magnetic properties, with an emphasis on physical and chemical functionality for biological and medical applications.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but not limited to) the following: inkjet printing, plasma processing of cells and nanomaterials, atomic layer deposition, electrochromic and thermochromic materials, micro/nanofluidic systems, self-assembled nanostructures, nanocomposites, and flexible electronics. The contributions are expected to explore correlations between morphology and functional properties of the printed nanostructures, and to anticipate new research lines covering the areas of nanomaterials and biotechnology within the framework of green methods of synthesis.

We look forward to receiving your contributions.

Dr. Sabine Portal
Dr. Carles Corbella Roca
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. Nanomaterials 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 2900 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

  • additive manufacturing
  • drop-on-demand printing
  • atomic layer deposition
  • sustainable processes
  • nanostructured biomaterials
  • optical sensors
  • surface nanopatterning

Published Papers (3 papers)

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Research

14 pages, 8911 KiB  
Article
Characterization of Chiral Nanostructured Surfaces Made via Colloidal Lithography
by Sabine Portal, Carles Corbella, Oriol Arteaga, Alexander Martin, Trinanjana Mandal and Bart Kahr
Nanomaterials 2023, 13(15), 2235; https://doi.org/10.3390/nano13152235 - 02 Aug 2023
Viewed by 929
Abstract
Optically anisotropic materials were produced via colloidal lithography and characterized using scanning electronic microscopy (SEM), confocal microscopy, and polarimetry. A compact hexagonal array mask composed of silica sub-micron particles was fabricated via the Langmuir–Blodgett self-assembly technique. Subsequently, the mask pattern was transferred onto [...] Read more.
Optically anisotropic materials were produced via colloidal lithography and characterized using scanning electronic microscopy (SEM), confocal microscopy, and polarimetry. A compact hexagonal array mask composed of silica sub-micron particles was fabricated via the Langmuir–Blodgett self-assembly technique. Subsequently, the mask pattern was transferred onto monocrystalline silicon and commercial glass substrates using ion beam etching in a vacuum. Varying the azimuthal angle while etching at oblique incidence carved screw-like shaped pillars into the substrates, resulting in heterochiral structures depending on the azimuthal angle direction. To enhance the material’s optical properties through plasmon resonance, gold films were deposited onto the pillars. Polarimetric measurements were realized at normal and oblique incidences, showing that the etching directions have a clear influence on the value of the linear birefringence and linear dichroism. The polarimetric properties, especially the chiroptical responses, increased with the increase in the angle of incidence. Full article
(This article belongs to the Special Issue Eco-Friendly Microdevice Printing Techniques with Functional Nano/Biomaterials)
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13 pages, 3125 KiB  
Article
All-Aerosol-Jet-Printed Carbon Nanotube Transistor with Cross-Linked Polymer Dielectrics
by Bhagyashree Mishra and Yihong Maggie Chen
Nanomaterials 2022, 12(24), 4487; https://doi.org/10.3390/nano12244487 - 19 Dec 2022
Viewed by 1579
Abstract
The printability of reliable gate dielectrics and their influence on the stability of the device are some of the primary concerns regarding the practical application of printed transistors. Major ongoing research is focusing on the structural properties of dielectric materials and deposition parameters [...] Read more.
The printability of reliable gate dielectrics and their influence on the stability of the device are some of the primary concerns regarding the practical application of printed transistors. Major ongoing research is focusing on the structural properties of dielectric materials and deposition parameters to reduce interface charge traps and hysteresis caused by the dielectric–semiconductor interface and dielectric bulk. This research focuses on improving the dielectric properties of a printed polymer material, cross-linked polyvinyl phenol (crPVP), by optimizing the cross-linking parameters as well as the aerosol jet printability. These improvements were then applied to the fabrication of completely printed carbon nanotube (CNT)-based thin-film transistors (TFT) to reduce the gate threshold voltage (Vth) and hysteresis in Vth during device operation. Finally, a fully aerosol-jet-printed CNT device was demonstrated using a 2:1 weight ratio of PVP with the cross-linker poly(melamine-co-formaldehyde) methylated (PMF) in crPVP as the dielectric material. This device shows significantly less hysteresis and can be operated at a gate threshold voltage as low as −4.8 V with an on/off ratio of more than 104. Full article
(This article belongs to the Special Issue Eco-Friendly Microdevice Printing Techniques with Functional Nano/Biomaterials)
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16 pages, 4193 KiB  
Article
Development and Characterisation of a Whole Hybrid Sol-Gel Optofluidic Platform for Biosensing Applications
by Emma MacHugh, Graceson Antony, Arun Kumar Mallik, Alicja Kaworek, Declan McCormack, Brendan Duffy and Mohamed Oubaha
Nanomaterials 2022, 12(23), 4192; https://doi.org/10.3390/nano12234192 - 25 Nov 2022
Cited by 3 | Viewed by 1347
Abstract
This work outlines, for the first time, the fabrication of a whole hybrid sol-gel optofluidic platform by integrating a microfluidic biosensor platform with optical waveguides employing a standard photolithography process. To demonstrate the suitability of this new hybrid sol-gel optofluidic platform, optical and [...] Read more.
This work outlines, for the first time, the fabrication of a whole hybrid sol-gel optofluidic platform by integrating a microfluidic biosensor platform with optical waveguides employing a standard photolithography process. To demonstrate the suitability of this new hybrid sol-gel optofluidic platform, optical and bio-sensing proof-of-concepts are proposed. A photoreactive hybrid sol-gel material composed of a photopolymerisable organically modified silicon alkoxide and a transition metal complex was prepared and used as the fabrication material for the entire optofluidic platform, including the optical waveguides, the sensing areas, and the microfluidic device. The most suitable sol-gel materials chosen for the fabrication of the cladding and core of the waveguides showed a RIC of 3.5 × 10−3 and gave thicknesses between 5.5 and 7 μm. The material was optimised to simultaneously meet the photoreactive properties required for the photolithography fabrication process and the optical properties needed for the effective optical operability of the microstructured waveguides at 532 and 633 nm with an integrated microfluidic device. The optical proof-of-concept was performed using a fluorescent dye (Atto 633) and recording its optical responses while irradiated with a suitable optical excitation. The biosensing capability of the platform was assessed using a polyclonal primary IgG mouse antibody and a fluorescent labelled secondary IgG anti-mouse antibody. A limit of detection (LOD) of 50 ug/mL was achieved. A correlation between the concentration of the dye and the emission fluorescence was evidenced, thus clearly demonstrating the feasibility of the proposed hybrid sol-gel optofluidic platform concept. The successful integration and operability of optical and microfluidic components in the same optofluidic platform is a novel concept, particularly where the sol-gel fabrication material is concerned. Full article
(This article belongs to the Special Issue Eco-Friendly Microdevice Printing Techniques with Functional Nano/Biomaterials)
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