Article
Nanoscience & Nanotechnology
Hamdi Ben Halima, Thibaut Zwingelstein, Vincent Humblot, Boris Lakard, Lydie Viau
Summary: A strategy was developed to prepare antibacterial surfaces by electropolymerization of a pyrrole-functionalized imidazolium ionic liquid bearing a halometallate anion. The antibacterial properties of the monomer [PyC(8)MIm]Br-ZnCl2 were evaluated and the films obtained by incorporation of [PyC(8)MIm]Br-ZnCl2 showed excellent antibacterial properties. The antibacterial activities of the different PPy films were determined both by the halo inhibition method and by the colony forming units (CFUs) counting method over time.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Doebner Von Tumacder, Zuzana Moravkova, Islam M. Minisy, Jirina Hromadkova, Patrycja Bober
Summary: The study focused on polypyrrole (PPy) prepared with organic dyes for its interesting morphology and electronic properties. It described the preparation of electropolymerized PPy/safranin-O film and found that incorporating safranin-O significantly enhanced the areal capacitance of PPy.
Article
Materials Science, Multidisciplinary
Sebastian Balser, Johannes Bernd, Leoni Fritsche, Andreas Terfort
Summary: In this study, highly conductive and biorepulsive polymer films were deposited onto gold surfaces through electrochemical polymerization of a polyglycerol-modified pyrrole derivative. The thickness of the films was determined by current density and time, and the growth process was self-terminated. The films were characterized using various techniques and exhibited biorepulsive properties, even at low thicknesses. This opens up opportunities for their application in bioelectrical devices.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Electrochemistry
A. A. Nekrasov, O. D. Iakobson, O. L. Gribkova
Summary: In this study, in situ Raman spectroelectrochemical investigation was conducted on the electropolymerization of pyrrole in the presence of sulfonated polyelectrolytes. The results showed that the form of polyelectrolyte significantly influenced the chemical structure of the forming PPy-polyelectrolyte complexes, leading to different film properties.
ELECTROCHIMICA ACTA
(2021)
Article
Multidisciplinary Sciences
Kamila Janzakova, Ankush Kumar, Mahdi Ghazal, Anna Susloparova, Yannick Coffinier, Fabien Alibart, Sebastien Pecqueur
Summary: The research explores the use of electrically-tunable electropolymerization to emulate and control neural dendritic morphogenesis, aiming to optimize computational costs and recognition in brain-inspired computing. The study shows that the morphology of dendrites can be independently tuned through electrochemical processes, with spatial features dynamically dependent on growth mechanisms.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Karolina Glosz, Agnieszka Stolarczyk, Tomasz Jarosz
Summary: Conjugated polymers are commonly used in sensor development but lack selectivity, while molecular imprinting enhances selectivity, particularly in the detection of bioactive substances. This review examines recent advancements in sensors utilizing molecularly imprinted polypyrrole layers, highlighting key deposition methods and analyte types. Trends in the development of these sensors are also explored.
Article
Chemistry, Applied
Sila Melahat Yilmaz, Gulten Atun
Summary: Polypyrrole-azo dye composite coatings were electrodeposited on stainless steel 430 using cyclic voltammetry. The coatings showed enhanced corrosion protection in both NaCl and H2SO4 solutions, with controlled release of the inhibitor deposited in the polypyrrole structure.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Applied
Sila Melahat Yilmaz, Gulten Atun
Summary: In this study, polypyrrole-azo dye composite coatings were electrochemically deposited on stainless steel, exhibiting enhanced corrosion resistance in both saltwater and sulfuric acid media. The optimized protective coating, synthesized with 10-5 M dye, showed superior corrosion protection compared to pure polypyrrole, as confirmed by characterization and analysis.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Physical
Lijun Duan, Qiaojing Wang, Leiting Xiao, Liying Lu, Likun Zang
Summary: An innovative one-pot electrochemical method has been studied for the synthesis of PPy-Cu composite films as the active layer of ReRAM. Cu is uniformly distributed in the films and exhibits two valence states of Cu (0) and Cu (II). The presence of Cu (II) is beneficial for maintaining stable resistive switching performance. The Pt/PPy-Cu/Pt ReRAM device shows excellent memory performance with a low threshold voltage, a long retention time, and good endurance cycles. The resistive switching mechanism is mainly dominated by the Space Charge Limited Current (SCLC) effect accompanied by Schottky emission.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Engineering, Environmental
Yang Li, Cai-Yan Gao, Xin-Heng Fan, Lian-Ming Yang
Summary: This study developed a high-performance polypyrrole (PPy)/single-walled carbon nanotube (SWCNT) composite material through in-situ electrochemical polymerization of pyrrole on a pre-fabricated SWCNT membrane electrode. By adopting pulse galvanostatic electropolymerization (PGEP) technology for interface engineering, the TE performance of the composite film was significantly improved, achieving excellent power factor and figure of merit.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Franziska Oberhaus
Summary: Boron trifluoride diethyl etherate is commonly used as solvent for the electropolymerization of conductive polymers, but it has drawbacks of decomposition and low reproducibility. In this study, various catalysts were investigated for the electropolymerization of thiophene and pyrrole, and it was found that the catalysts could significantly reduce the oxidation potential of the monomers. The catalytic effect depended on the electrophilic nature of the catalyst center, influenced by the ligands. The use of appropriate catalysts, such as butyric acid, resulted in conductive films with improved properties.
ELECTROCHIMICA ACTA
(2023)
Article
Polymer Science
A. M. R. Ramirez, M. A. del Valle, E. Ortega, F. R. Diaz, M. A. Gacitua
Summary: In this study, electrodes modified with polypyrrole nanowires with a diameter of 30 nm were successfully obtained through electrochemical methods. The analysis of their electrochemical, spectroscopic, and morphological properties revealed that the nanowire structure can significantly enhance the specific capacitance and stability of the capacitors.
Article
Materials Science, Multidisciplinary
Bingbing Wang, Bin Cheng, Yutong Zhang, Xiongri Gan, Yihong Wu, Igor Zhitomirsky, Yabin Yang, Kaiyuan Shi
Summary: Electrochemical additive manufacturing (ECAM) is used to fabricate conducting polymers. In this study, different anionic dopants were investigated for the ECAM fabrication of polypyrrole. The analysis of the dopants revealed their influence on polypyrrole depositions. Increasing the charge/mass ratio of the dopant resulted in lower deposition potential, higher deposition rate, and reduced particle agglomeration. The use of Tiron as a dopant demonstrated improved deformation tolerance and higher electronic conductivity.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Florentina Golgovici, Florentina Gina Ionascu, Mariana Prodana, Ioana Demetrescu
Summary: The aim of this study is to investigate the electrochemical deposition of polypyrrole films using choline chloride-based ionic liquids and simultaneously embed and release indomethacin. The morphology of the films was observed using scanning electron microscopy and the presence of polymer and drug was confirmed using FT-IR analysis. The hydrophilic character of the samples was evaluated and their electrochemical characterization was performed in artificial saliva. Indomethacin release was determined using UV-VIS spectra and a kinetic law for release was established based on Fick's law of diffusion.
Article
Chemistry, Analytical
Oxana Gribkova, Varvara Kabanova, Vladimir Tverskoy, Alexander Nekrasov
Summary: The structure of conducting polymers and polyacids used during electrochemical deposition has a significant impact on the performance of sensors.
Article
Chemistry, Analytical
Isma Haq, Alvaro Garcia Cruz, Sabrina Di Masi, Todd Cowen, Natalie S. Allcock, Cosimino Malitesta, Adnan Mujahid, Tajamal Hussain, Elena Piletska, Sergey A. Piletsky
Summary: Smart artificial nano-actuators, developed using electroactive acrylamide polymer nanoparticles by molecular imprinting, can mimic the specificity of antibodies and replace enzymes in traditional biosensors for highly sensitive and selective monitoring. These nano-actuators, which operate through a swelling mechanism in response to an electrochemical stimulus, allow extremely sensitive monitoring of Metformin in human plasma, with no cross-reactivity observed against potential interferences. This technology has the potential to be used for rapid point-of-care testing, reducing the time and cost of analysis.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Electrical & Electronic
Veronica Granata, Guerino Avallone, Carlo Barone, Matteo Borghesi, Silvia Capelli, Giovanni Carapella, Anna Paola Caricato, Iacopo Carusotto, Alessandro Cian, Daniele Di Gioacchino, Emanuele Enrico, Paolo Falferi, Luca Fasolo, Marco Faverzani, Elena Ferri, Giovanni Filatrella, Claudio Gatti, Andrea Giachero, Damiano Giubertoni, Angelo Greco, Claudio Guarcello, Danilo Labranca, Angelo Leo, Carlo Ligi, Giovanni Maccarrone, Federica Mantegazzini, Benno Margesin, Giuseppe Maruccio, Costantino Mauro, Renato Mezzena, Anna Grazia Monteduro, Angelo Nucciotti, Luca Oberto, Luca Origo, Sergio Pagano, Vincenzo Pierro, Luca Piersanti, Mauro Rajteri, Alessio Rettaroli, Silvia Rizzato, Andrea Vinante, Mario Zannoni
Summary: The growing interest in quantum technologies requires highly performing electronics with minimal noise. Superconducting microwave amplifiers have excellent noise and gain performances but still have room for improvement in terms of bandwidth and saturation power. The DARTWARS collaboration is developing state-of-the-art microwave superconducting amplifiers to address these challenges.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2023)
Article
Engineering, Electrical & Electronic
Claudio Guarcello, Guerino Avallone, Carlo Barone, Matteo Borghesi, Silvia Capelli, Giovanni Carapella, Anna Paola Caricato, Iacopo Carusotto, Alessandro Cian, Daniele Di Gioacchino, Emanuele Enrico, Paolo Falferi, Luca Fasolo, Marco Faverzani, Elena Ferri, Giovanni Filatrella, Claudio Gatti, Andrea Giachero, Damiano Giubertoni, Veronica Granata, Angelo Greco, Danilo Labranca, Angelo Leo, Carlo Ligi, Giovanni Maccarrone, Federica Mantegazzini, Benno Margesin, Giuseppe Maruccio, Costantino Mauro, Renato Mezzena, Anna Grazia Monteduro, Angelo Nucciotti, Luca Oberto, Luca Origo, Sergio Pagano, Vincenzo Pierro, Luca Piersanti, Mauro Rajteri, Alessio Rettaroli, Silvia Rizzato, Andrea Vinante, Mario Zannoni
Summary: The recent developments in quantum technologies and advanced detection experiments have increased the demand for detecting extremely weak signals in the microwave frequency spectrum. The Josephson travelling wave parametric amplifier, capable of reaching the quantum noise limit with a wide bandwidth, has been proposed as a suitable cryogenic front-end amplifier. This study numerically investigates the Josephson travelling wave parametric amplifier without approximations, focusing on the system's coupled nonlinear differential equations and examining the output signals and their characteristics.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2023)
Article
Engineering, Biomedical
Iriczalli Cruz-Maya, Simona Zuppolini, Mauro Zarrelli, Elisabetta Mazzotta, Anna Borriello, Cosimino Malitesta, Vincenzo Guarino
Summary: In this study, core-shell microgels were produced by self-polymerization of dopamine and in situ precipitation of polydopamine onto alginate microbeads. The presence of polydopamine was confirmed by morphological and chemical analyses. The polydopamine coating improved the biomechanical properties of the microgel surfaces, leading to increased adhesion and cell proliferation, making core-shell microgels a promising model for studying in vitro cell interactions.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Environmental Sciences
Silvia Fraissinet, Daniele Arduini, Olaya Vidal, Antonio Pennetta, Giuseppe Egidio De Benedetto, Cosimino Malitesta, Adriana Giangrande, Sergio Rossi
Summary: Microplastics pose a serious threat to the marine environment, impacting ecosystem functioning and biodiversity. While there is a vast literature on the uptake of microplastics in different trophic levels, there is limited knowledge on potential strategies to mitigate microplastic pollution. Bioremediation, specifically focusing on three species (Sabella spallanzanii, Mytilus galloprovincialis, Phallusia mammillata), has shown promise in effectively removing microplastics.
MARINE POLLUTION BULLETIN
(2023)
Article
Engineering, Biomedical
Matthew J. Large, Marco Bizzarri, Lucio Calcagnile, Mirco Caprai, Anna Paola Caricato, Roberto Catalano, Giuseppe A. P. Cirrone, Tommaso Croci, Giacomo Cuttone, Sylvain Dunand, Michele Fabi, Luca Frontini, Benedetta Gianfelici, Catia Grimani, Maria Ionica, Keida Kanxheri, Michael L. F. Lerch, Valentino Liberali, Maurizio Martino, Giuseppe Maruccio, Giovanni Mazza, Mauro Menichelli, Anna Grazia Monteduro, Francesco Moscatelli, Arianna Morozzi, Stefania Pallotta, Andrea Papi, Daniele Passeri, Maddalena Pedio, Giada Petringa, Francesca Peverini, Lorenzo Piccolo, Pisana Placidi, Gianluca Quarta, Silvia Rizzato, Alessandro Rossi, Giulia Rossi, Vincent de Rover, Federico Sabbatini, Leonello Servoli, Alberto Stabile, Cinzia Talamonti, Luca Tosti, Mattia Villani, Richard J. Wheadon, Nicolas Wyrsch, Nicola Zema, Marco Petasecca
Summary: Microbeam radiation therapy (MRT) is a promising alternative radiotherapy treatment method that effectively controls radioresistant tumors while sparing healthy tissue. In this study, radiation-hardened a-Si:H diodes were characterized for x-ray dosimetry and real-time beam monitoring in high-flux beamlines for MRT. The devices showed excellent radiation hardness and accurate dosimetric performance, making them suitable for high dose-rate environments like FLASH and MRT.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Article
Chemistry, Analytical
Marco Costa, Sabrina Di Masi, Alvaro Garcia-Cruz, Sergey A. Piletsky, Cosimino Malitesta
Summary: Cadmium, a highly toxic heavy metal, accumulates in the body and causes a variety of acute and chronic effects including cancer. To address this, a portable and user-friendly electrochemical sensor for Cd(II) detection was developed using ion-imprinted polymer film. The sensor exhibited a sensitivity 5 orders of magnitude higher than the control experiments in a concentration range of 10 to 1200 nM of Cd (II). This technology has potential applications in water quality control and monitoring of heavy metals.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Tiziano Di Giulio, Amilcare Barca, Tiziano Verri, Marco De Gennaro, Gabriele Giancane, Elisabetta Mazzotta, Cosimino Malitesta
Summary: We report the electrosynthesis of a metallo-porphyrin-based molecularly imprinted polymer (MIP) as a new receptor for carnosine recognition. The MIP was designed to utilize the metal-ion mediated recognition through the chelation of carnosine with Zn(II) ions. The MIP showed high response specificity, stability, and selectivity in the detection of carnosine and other histidine-bearing molecules.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Elisabetta Mazzotta, Tiziano Di Giulio, Stefano Mariani, Martina Corsi, Cosimino Malitesta, Giuseppe Barillaro
Summary: Molecularly imprinted polymers (MIPs) have been synthesized in liquid phase, but their application in nanostructured materials is challenging due to limited diffusion of monomers. This study reports the vapor-phase synthesis of MIPs in nanostructures, utilizing a higher diffusion coefficient in vapor phase to overcome the diffusion limitations. As proof-of-concept, a vapor-phase deposited MIP-based optical sensor in nanostructured porous silicon oxide (PSiO2) is successfully demonstrated for label-free detection of human hemoglobin (HHb). The proposed vapor-phase synthesis of MIPs can be easily applied to other nanomaterials, proteins, and transducers.
Article
Chemistry, Physical
Giulia Siciliano, Antonio Turco, Anna Grazia Monteduro, Elisabetta Fanizza, Alessandra Quarta, Roberto Comparelli, Elisabetta Primiceri, M. Lucia Curri, Nicoletta Depalo, Giuseppe Maruccio
Summary: The removal of pollutants from water remains a challenge. Adsorption-based techniques, specifically polydopamine-coated magnetic nanoparticles, have shown promise for the removal of heavy metals. In this study, polydopamine-coated Super Paramagnetic Iron Oxide Nanoparticles (PDA@SPIONs) were synthesized and evaluated for their ability to bind and remove Cu2+ ions from water by applying a magnetic field. The results indicate that these nanostructures hold great potential for future bioremediation applications.
Article
Biophysics
Anna Grazia Monteduro, Silvia Rizzato, Giusi Caragnano, Adriana Trapani, Gianluigi Giannelli, Giuseppe Maruccio
Summary: Current in-vitro 2D cultures and animal models have limitations in recapitulating human physiology, but microphysiological systems and organ-on-chip technologies are emerging as novel tools for high-throughput research and drug development. This review provides an introduction to major themes in this field and discusses the significance, limitations, and future prospects of these technologies.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Analytical
Elisabetta Mazzotta, Tiziano Di Giulio, Valentina Mastronardi, Rosaria Brescia, Pier Paolo Pompa, Mauro Moglianetti, Cosimino Malitesta
Summary: This study reports the ability of shape-controlled octahedral Pt nanoparticles to mimic glucose oxidase enzyme as nanozymes. The extended {111} particle surface facets, comparable size to natural enzymes, and easy-to-remove citrate coating contribute to its high affinity for glucose. The steady-state kinetics of glucose electrooxidation prove its performance comparable to the enzyme. The nanozymes also show good stability and reproducibility for glucose electrochemical detection.