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Your search keyword '"Contardi, Marco"' showing total 24 results
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5. Underwater Quick‐Hardening Vegetable Oil‐Based Biodegradable Putty for Sustainable Coral Reef Restoration and Rehabilitation.

Author

Zych, Arkadiusz, Contardi, Marco, Rinaldi, Camilla, Scribano, Vincenzo, Isa, Valerio, Kossyvaki, Despoina, Gobbato, Jacopo, Ceseracciu, Luca, Lavorano, Silvia, Galli, Paolo, Athanassiou, Athanassia, and Montano, Simone

Subjects
CORAL reefs & islands, CORAL colonies, CORALS, CORAL reef restoration, SOY oil, ACROPORA
Abstract

Coral reefs are threatened by climate change and the effects of human activity on the marine environment. Researchers are attempting to rescue this fragile ecosystem through coral restoration actions, and a common step in these procedures is transplanting the new coral colonies into coral reefs. To do that, commercial concrete or epoxy resins, also called putty, are utilized, highlighting different concerns about their mechanical and hardening performances and their impact and fate once released into the environment. Hence, this study presents a new biodegradable epoxidized soybean oil acrylate (ESOA)/zein‐based coral putty capable of quick hardening underwater as an ecofriendly alternative for transplantation of new coral colonies in the reef. Coral putty is composed of two components, containing one a radical initiator and the other a radical accelerator. Once the two components are mixed, coral putty becomes hard underwater in 20–25 min, showing a hardening timescale much faster than other commercial products. The coral putty is biocompatible when applied to the coral Stylophora pistillata in aquaria and Acropora tenuis corals are out‐planted on the reef in the Maldives, demonstrating how this new class of vegetable‐oil‐based materials can be a more sustainable alternative to epoxy resins commonly used in coral restoration procedures. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Schiff Base-Based Hydrogel Embedded with In Situ Generated Silver Nanoparticles Capped by a Hyaluronic Acid–Diethylenetriamine Derivative for Wound Healing Application

Author

Martorana, Annalisa, primary, Lenzuni, Martina, additional, Contardi, Marco, additional, Palumbo, Fabio S., additional, Cataldo, Salvatore, additional, Pettignano, Alberto, additional, Catania, Valentina, additional, Schillaci, Domenico, additional, Summa, Maria, additional, Athanassiou, Athanassia, additional, Fiorica, Calogero, additional, Bertorelli, Rosalia, additional, and Pitarresi, Giovanna, additional

Published
2024
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7. bi-phasic biosystem allows in-situ drug delivery in infected corals

Author

Scribano, V, Contardi, M, Rinaldi, C, Isa, V, Fiorentini, F, Ceseracciu, L, Lavorano, S, Galli, P, Montano, S, Athanassiou, A, Scribano, Vincenzo, Contardi, Marco, Rinaldi, Camilla, Isa, Valerio, Fiorentini, Fabrizio, Ceseracciu, Luca, Lavorano, Silvia, Galli, Paolo, Montano, Simone, Athanassiou, Athanassia, Scribano, V, Contardi, M, Rinaldi, C, Isa, V, Fiorentini, F, Ceseracciu, L, Lavorano, S, Galli, P, Montano, S, Athanassiou, A, Scribano, Vincenzo, Contardi, Marco, Rinaldi, Camilla, Isa, Valerio, Fiorentini, Fabrizio, Ceseracciu, Luca, Lavorano, Silvia, Galli, Paolo, Montano, Simone, and Athanassiou, Athanassia

Published
2024

8. Biodegradable underwater films and silk microparticles as vehicles for curcumin delivery in coral bleaching treatment

Author

Rinaldi, C, Contardi, M, Perotto, G, Scribano, V, Isa, V, Lavorano, S, Galli, P, Montano, S, Athanassiou, A, Rinaldi, Camilla, Contardi, Marco, Perotto, Giovanni, Scribano, Vincenzo, Isa, Valerio, Lavorano, Silvia, Galli, Paolo, Montano, Simone, Athanassiou, Athanassia, Rinaldi, C, Contardi, M, Perotto, G, Scribano, V, Isa, V, Lavorano, S, Galli, P, Montano, S, Athanassiou, A, Rinaldi, Camilla, Contardi, Marco, Perotto, Giovanni, Scribano, Vincenzo, Isa, Valerio, Lavorano, Silvia, Galli, Paolo, Montano, Simone, and Athanassiou, Athanassia

Published
2024

9. Superhydrophobic textiles with a PFAS-free chitosan-based coating

Author

Tagliaro, I, Mariani, M, Akbari, R, Contardi, M, Saliu, F, Nistico', R, Antonini, C, Tagliaro Irene, Mariani Massimiliano, Akbari Raziyeh., Contardi Marco, Saliu Francesco, Nistico' Roberto, Antonini Carlo, Tagliaro, I, Mariani, M, Akbari, R, Contardi, M, Saliu, F, Nistico', R, Antonini, C, Tagliaro Irene, Mariani Massimiliano, Akbari Raziyeh., Contardi Marco, Saliu Francesco, Nistico' Roberto, and Antonini Carlo

Published
2024

10. Mycelium Agrowaste‐Bound Biocomposites as Thermal and Acoustic Insulation Materials in Building Construction.

Author

Bonga, Kumba Bintunia, Bertolacci, Laura, Contardi, Marco, Paul, Uttam Chandra, Zafar, Muhammad Shajih, Mancini, Giorgio, Marini, Lara, Ceseracciu, Luca, Fragouli, Despina, and Athanassiou, Athanassia

Subjects
INSULATING materials, THERMAL insulation, ACOUSTICAL materials, BUILDING design & construction, SUSTAINABLE development, MYCELIUM
Abstract

The predominant use of synthetic materials, such as fiberglass and polymeric foams, for thermal and acoustic insulation in the construction sector contributes to the recalcitrant waste accumulation in the environment and is not economically sustainable in the long term. This is because they are developed with linear economy standards, they are neither reusable nor recyclable, and, at their end of lifecycle, they are not compostable, with a great amount of them finishing in landfills. This work is focused on the development of natural, self‐growing mycelium‐biocomposites as sustainable alternatives to these conventional synthetic materials. Specifically, fungal mycelium derived from the nonpathogenic fungal strain Pleurotus ostreatus is fed by coffee silverskin flakes, a lignocellulosic agrowaste from roasted coffee seeds, forming 3D biocomposites. The physicochemical properties of the obtained composite are thoroughly investigated, with a final focus on their thermal and acoustic insulation properties. As proved, the natural agrowaste‐mycelium composites possess high porosity and thus low density, good thermal properties, and satisfactory sound absorption capability. Such properties combined with the minimal energetic requirements for their growth and their fully compostable end‐of‐life nature make them valuable alternatives for thermal and acoustic insulation in building construction, among other applications, promoting environmental and economic sustainability. [ABSTRACT FROM AUTHOR]

Published
2024
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13. Mycelium-based biomaterials as smart devices for skin wound healing

Author

Ruggeri, Marco, primary, Miele, Dalila, additional, Contardi, Marco, additional, Vigani, Barbara, additional, Boselli, Cinzia, additional, Icaro Cornaglia, Antonia, additional, Rossi, Silvia, additional, Suarato, Giulia, additional, Athanassiou, Athanassia, additional, and Sandri, Giuseppina, additional

Published
2023
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15. Biodegradable Zein-Based Biocomposite Films for Underwater Delivery of Curcumin Reduce Thermal Stress Effects in Corals

Author

Contardi, Marco, primary, Fadda, Marta, additional, Isa, Valerio, additional, Louis, Yohan D., additional, Madaschi, Andrea, additional, Vencato, Sara, additional, Montalbetti, Enrico, additional, Bertolacci, Laura, additional, Ceseracciu, Luca, additional, Seveso, Davide, additional, Lavorano, Silvia, additional, Galli, Paolo, additional, Athanassiou, Athanassia, additional, and Montano, Simone, additional

Published
2023
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16. Biocompatible and biodegradable composite material for underwater delivery of active agents and uses thereof

Author

Contardi, M, Montano, S, Galli, P, Athanasiou, A, CONTARDI Marco, MONTANO Simone, GALLI Paolo, ATHANASIOU Athanasia, Contardi, M, Montano, S, Galli, P, Athanasiou, A, CONTARDI Marco, MONTANO Simone, GALLI Paolo, and ATHANASIOU Athanasia

Abstract

The invention describes a biocompatible and biodegradable composite material for the underwater delivery of active agent curcumin to reduce the effects of high seawater temperature on marine organisms such as corals. The antioxidant action of curcumin allows to mitigate the effect of climate change and improve the survival of ecosystems that are fragile, unique, biodiverse, and important for thousands of people worldwide like coral reefs.

Published
2023

17. Biodegradable Zein-Based Biocomposite Films for Underwater Delivery of Curcumin Reduce Thermal Stress Effects in Corals

Author

Contardi, M, Fadda, M, Isa, V, Louis, Y, Madaschi, A, Vencato, S, Montalbetti, E, Bertolacci, L, Ceseracciu, L, Seveso, D, Lavorano, S, Galli, P, Athanassiou, A, Montano, S, Contardi, Marco, Fadda, Marta, Isa, Valerio, Louis, Yohan D, Madaschi, Andrea, Vencato, Sara, Montalbetti, Enrico, Bertolacci, Laura, Ceseracciu, Luca, Seveso, Davide, Lavorano, Silvia, Galli, Paolo, Athanassiou, Athanassia, Montano, Simone, Contardi, M, Fadda, M, Isa, V, Louis, Y, Madaschi, A, Vencato, S, Montalbetti, E, Bertolacci, L, Ceseracciu, L, Seveso, D, Lavorano, S, Galli, P, Athanassiou, A, Montano, S, Contardi, Marco, Fadda, Marta, Isa, Valerio, Louis, Yohan D, Madaschi, Andrea, Vencato, Sara, Montalbetti, Enrico, Bertolacci, Laura, Ceseracciu, Luca, Seveso, Davide, Lavorano, Silvia, Galli, Paolo, Athanassiou, Athanassia, and Montano, Simone

Abstract

Massive coral bleachingepisodes induced by thermal stress areone of the first causes of coral death worldwide. Overproduction ofreactive oxygen species (ROS) has been identified as one of the potentialcauses of symbiosis breakdown between polyps and algae in corals duringextreme heat wave events. Here, we propose a new strategy for mitigatingheat effects by delivering underwater an antioxidant to the corals.We fabricated zein/polyvinylpyrrolidone (PVP)-based biocomposite filmsladen with the strong and natural antioxidant curcumin as an advancedcoral bleaching remediation tool. Biocomposites' mechanical,water contact angle (WCA), swelling, and release properties can betuned thanks to different supramolecular rearrangements that occurby varying the zein/PVP weight ratio. Following immersion in seawater,the biocomposites became soft hydrogels that did not affect the coral'shealth in the short (24 h) and long periods (15 days). Laboratorybleaching experiments at 29 and 33 & DEG;C showed that coral coloniesof Stylophora pistillata coated withthe biocomposites had ameliorated conditions in terms of morphologicalaspects, chlorophyll content, and enzymatic activity compared to untreatedcolonies and did not bleach. Finally, biochemical oxygen demand (BOD)confirmed the full biodegradability of the biocomposites, showinga low potential environmental impact in the case of open-field application.These insights may pave the way for new frontiers in mitigating extremecoral bleaching events by combining natural antioxidants and biocomposites.

Published
2023

19. Biodegradable Zein-Based Biocomposite Films for Underwater Delivery of Curcumin Reduce Thermal Stress Effects in Corals

Author

Contardi, Marco, Fadda, Marta, Isa, Valerio, Louis, Yohan D, Madaschi, Andrea, Vencato, Sara, Montalbetti, Enrico, Bertolacci, Laura, Ceseracciu, Luca, Seveso, Davide, Lavorano, Silvia, Galli, Paolo, Athanassiou, Athanassia, Montano, Simone, Contardi, M, Fadda, M, Isa, V, Louis, Y, Madaschi, A, Vencato, S, Montalbetti, E, Bertolacci, L, Ceseracciu, L, Seveso, D, Lavorano, S, Galli, P, Athanassiou, A, and Montano, S

Subjects
antioxidant, biocomposite, underwater delivery, coral bleaching, coral reef
Abstract

Massive coral bleachingepisodes induced by thermal stress areone of the first causes of coral death worldwide. Overproduction ofreactive oxygen species (ROS) has been identified as one of the potentialcauses of symbiosis breakdown between polyps and algae in corals duringextreme heat wave events. Here, we propose a new strategy for mitigatingheat effects by delivering underwater an antioxidant to the corals.We fabricated zein/polyvinylpyrrolidone (PVP)-based biocomposite filmsladen with the strong and natural antioxidant curcumin as an advancedcoral bleaching remediation tool. Biocomposites' mechanical,water contact angle (WCA), swelling, and release properties can betuned thanks to different supramolecular rearrangements that occurby varying the zein/PVP weight ratio. Following immersion in seawater,the biocomposites became soft hydrogels that did not affect the coral'shealth in the short (24 h) and long periods (15 days). Laboratorybleaching experiments at 29 and 33 & DEG;C showed that coral coloniesof Stylophora pistillata coated withthe biocomposites had ameliorated conditions in terms of morphologicalaspects, chlorophyll content, and enzymatic activity compared to untreatedcolonies and did not bleach. Finally, biochemical oxygen demand (BOD)confirmed the full biodegradability of the biocomposites, showinga low potential environmental impact in the case of open-field application.These insights may pave the way for new frontiers in mitigating extremecoral bleaching events by combining natural antioxidants and biocomposites.

Published
2023

22. Self-Adhesive and Antioxidant Poly(vinylpyrrolidone)/Alginate-Based Bilayer Films Loaded with Malva sylvestris Extracts as Potential Skin Dressings

Author

Contardi, Marco, primary, Ayyoub, Amin Mah’d Moh’d, additional, Summa, Maria, additional, Kossyvaki, Despoina, additional, Fadda, Marta, additional, Liessi, Nara, additional, Armirotti, Andrea, additional, Fragouli, Despina, additional, Bertorelli, Rosalia, additional, and Athanassiou, Athanassia, additional

Published
2022
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24. Schiff Base-Based Hydrogel Embedded with In SituGenerated Silver Nanoparticles Capped by a Hyaluronic Acid–Diethylenetriamine Derivative for Wound Healing Application

Author

Martorana, Annalisa, Lenzuni, Martina, Contardi, Marco, Palumbo, Fabio S., Cataldo, Salvatore, Pettignano, Alberto, Catania, Valentina, Schillaci, Domenico, Summa, Maria, Athanassiou, Athanassia, Fiorica, Calogero, Bertorelli, Rosalia, and Pitarresi, Giovanna

Abstract

In this study, hydrogels were produced using a Schiff base reaction between two hyaluronic acid derivatives: one containing aldehyde groups (HA-Ald) and the other holding a diethylenetriamine with terminal amino groups (HA-DETA). The DETA portion promotes the in situgrowth, complexation, and stabilization of silver nanoparticles (AgNPs), eliminating the need for external reducing agents. The reaction between HA-DETA and HA-Ald leads to the formation of imine bonds, which results in dynamically pH-responsive cross-linking. While the DETA capping ability helped in embedding the AgNPs, the on/off pH environmental responsivity of the hydrogel allows for a controlled and on-demand release of the drug, mainly when bacterial infections cause pH variation of the wound bed. The injectable hydrogels resulted in being highly compatible in contact with blood red cells, fibroblasts, and keratinocytes and capable of having a proliferative effect on an in vitrowound scratch model. The pH-responsive hydrogels showed proper antibacterial activity againstPseudomonas aeruginosaandStaphylococcus aureus, common bacterial strains presented in wound infections. Finally, in vivowound model studies demonstrated an overall speeding up in the wound healing rate and advanced wound conditions in the experimental group treated with the hydrogels compared to control samples.

Published
2024
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