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Keywords = silkscreen

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29 pages, 1609 KiB  
Review
Recent Advances in Silver Nanowire-Based Transparent Conductive Films: From Synthesis to Applications
by Ji Li, Jun Luo and Yang Liu
Coatings 2025, 15(7), 858; https://doi.org/10.3390/coatings15070858 - 21 Jul 2025
Viewed by 570
Abstract
Silver nanowire (AgNW)-based transparent conductive films are essential for flexible electronics due to their superior optoelectronic properties and mechanical flexibility. This review examines the characteristics and fabrication methods of AgNW thin films in detail. Among various fabrication techniques, the AgNW thin film produced [...] Read more.
Silver nanowire (AgNW)-based transparent conductive films are essential for flexible electronics due to their superior optoelectronic properties and mechanical flexibility. This review examines the characteristics and fabrication methods of AgNW thin films in detail. Among various fabrication techniques, the AgNW thin film produced by silk-screen printing exhibits the highest quality factor of 568.47, achieving 95.3% visible light transmittance of 95.3% and 13.6 Ω/sq sheet resistance. Ensuring the stability of AgNW films requires the deposition of protective layers through physical or chemical approaches. This review also systematically evaluates the different methods for preparing these protective layers, including their respective advantages and limitations. Furthermore, the review proposes strategies to enhance the conductivity, transparency, and flexibility of AgNW films. Finally, it discusses potential future applications and challenges, offering valuable insights for the development of next-generation flexible transparent electrodes. Full article
(This article belongs to the Special Issue Advanced Thin Films Technologies for Optics, Electronics, and Sensing)
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18 pages, 3004 KiB  
Article
Highly Sensitive Immunoresistive Sensor for Point-Of-Care Screening for COVID-19
by Tianyi Li, Scott D. Soelberg, Zachary Taylor, Vigneshwar Sakthivelpathi, Clement E. Furlong, Jong-Hoon Kim, Sang-gyeun Ahn, Peter D. Han, Lea M. Starita, Jia Zhu and Jae-Hyun Chung
Biosensors 2022, 12(3), 149; https://doi.org/10.3390/bios12030149 - 28 Feb 2022
Cited by 10 | Viewed by 3330
Abstract
Current point-of-care (POC) screening of Coronavirus disease 2019 (COVID-19) requires further improvements to achieve highly sensitive, rapid, and inexpensive detection. Here we describe an immunoresistive sensor on a polyethylene terephthalate (PET) film for simple, inexpensive, and highly sensitive COVID-19 screening. The sensor is [...] Read more.
Current point-of-care (POC) screening of Coronavirus disease 2019 (COVID-19) requires further improvements to achieve highly sensitive, rapid, and inexpensive detection. Here we describe an immunoresistive sensor on a polyethylene terephthalate (PET) film for simple, inexpensive, and highly sensitive COVID-19 screening. The sensor is composed of single-walled carbon nanotubes (SWCNTs) functionalized with monoclonal antibodies that bind to the spike protein of SARS-CoV-2. Silver electrodes are silkscreen-printed on SWCNTs to reduce contact resistance. We determine the SARS-CoV-2 status via the resistance ratio of control- and SARS-CoV-2 sensor electrodes. A combined measurement of two adjacent sensors enhances the sensitivity and specificity of the detection protocol. The lower limit of detection (LLD) of the SWCNT assay is 350 genome equivalents/mL. The developed SWCNT sensor shows 100% sensitivity and 90% specificity in clinical sample testing. Further, our device adds benefits of a small form factor, simple operation, low power requirement, and low assay cost. This highly sensitive film sensor will facilitate rapid COVID-19 screening and expedite the development of POC screening platforms. Full article
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24 pages, 59957 KiB  
Article
Multi-Analytical Investigations of Andy Warhol’s “Orange Car Crash”: Polymeric Materials in Modern Paints
by Valentina Pintus, Anthony J. Baragona, Federica Cappa, Christa Haiml, Christina Hierl, Katja Sterflinger and Manfred Schreiner
Polymers 2022, 14(3), 633; https://doi.org/10.3390/polym14030633 - 7 Feb 2022
Cited by 6 | Viewed by 4090
Abstract
This work presents strategic multi-analytical investigations performed on “Orange Car Crash” by Andy Warhol in order to make a well-informed conservation decision. For determining the type of binding medium used in the artwork, Pyrolysis–Gas Chromatography/Mass Spectrometry (Py–GC/MS) and Thermally Assisted Hydrolysis [...] Read more.
This work presents strategic multi-analytical investigations performed on “Orange Car Crash” by Andy Warhol in order to make a well-informed conservation decision. For determining the type of binding medium used in the artwork, Pyrolysis–Gas Chromatography/Mass Spectrometry (Py–GC/MS) and Thermally Assisted Hydrolysis and Methylation of GC/MS (THM–GC/MS) were employed. The presence of a coating was investigated by Py–GC/MS. Moreover, the comprehension and elucidation of the paint stratigraphy were studied by examining cross-sections of samples taken from both canvases with Optical Microscopy (OM) under reflected visible (Vis) and ultraviolet light (UV) and by Scanning Electron Microscopy with Energy Dispersive X-ray spectroscopy (SEM–EDX). The investigation of possible synthetic organic pigments (SOPs) and extenders was performed by µ-Raman spectroscopy, while micro-Attenuated Total Reflection of Fourier-Transform Attenuated Total Reflection (µ-ATR–FTIR) allowed us to assign each component detected by Py–GC/MS or THM–GC/MS to a specific layer. The data collected from “Orange Car Crash” show mostly the application of acrylic-based paint as well as alkyd with rosin acids-based ink, thus providing fundamental information about the paint stratigraphy and chemical composition of each layer. In addition to the goal of informing an appropriate conservation–restoration strategy, this work represents a rare scientific study of a work by Andy Warhol. Full article
(This article belongs to the Special Issue Polymeric Materials in Modern-Contemporary Art)
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22 pages, 10921 KiB  
Editorial
From the Memory Books of Josely Carvalho
by Erina Duganne
Arts 2019, 8(3), 109; https://doi.org/10.3390/arts8030109 - 28 Aug 2019
Viewed by 4720
Abstract
In this interview, Brazilian-born multi-media artist Josely Carvalho (b. 1942) reflects back on her art making practice in the 1980s. Among the subjects that she addresses are her bi-nationalism, her use of the silkscreen process, and her association with the 1984 activist campaign [...] Read more.
In this interview, Brazilian-born multi-media artist Josely Carvalho (b. 1942) reflects back on her art making practice in the 1980s. Among the subjects that she addresses are her bi-nationalism, her use of the silkscreen process, and her association with the 1984 activist campaign Artists Call Against U.S. Intervention in Central America. She also speaks about working as a Latin American artist in New York City during this period, as well as her involvement with galleries and arts organizations such as St. Mark’s Church-in-the-Bowery, Central Hall Cooperative Gallery, and Franklin Furnace. Full article
(This article belongs to the Special Issue Decolonizing Contemporary Latin American Art)
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