Proceedings ArticleDOI
Spiral formation at microscale by μ-pyro-electrospinning
Laura Mecozzi,Oriella Gennari,Romina Rega,Simonetta Grilli,S. Bhowmick,Mariano Gioffrè,G. Coppola,Pietro Ferraro +7 more
- Vol. 1736, Iss: 1, pp 020079
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TLDR
In this article, a μ-pyro electrospinning is used to control the whipping instabilities in order to form polymeric spirals directly onto the target support and with true regularity at microscale.Abstract:
Spiral shapes occur frequently in nature, such as in case of snail shells or in case of the so-called cochlea, namely the auditory portion of the inner ear. They also inspire many technological devices that take advantage of this geometry. Here we show that μ-pyro electrospinning is able to control the whipping instabilities in order to form polymeric spirals directly onto the target support and with true regularity at microscale. The results show that the polymer concentration plays a key role in producing reliable and long spirals. We investigate the cell response to these spiral templates that, thanks to their true regularity, would be useful for developing innovative cochlea regeneration scaffolds.read more
Citations
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Journal ArticleDOI
Direct Patterning and Spontaneous Self-Assembly of Graphene Oxide via Electrohydrodynamic Jet Printing for Energy Storage and Sensing
TL;DR: The EHD-assisted assembly of laminar r-GO structures are presented as a new platform for preparing high-performance energy storage devices and sensors for graphene oxide supercapacitor and a three-dimensional metallic grid hybrid ammonia sensor.
Journal ArticleDOI
Pyro-Electrification of Freestanding Polymer Sheets: A New Tool for Cation-Free Manipulation of Cell Adhesion in vitro.
Romina Rega,Oriella Gennari,Laura Mecozzi,Vito Pagliarulo,Martina Mugnano,Emilia Oleandro,Filomena Nazzaro,Pietro Ferraro,Simonetta Grilli +8 more
TL;DR: This work reports a voltage-free pyro-electrification (PE) process able to induce a permanent dipole orientation into polymer sheets under both mono- and bipolar distribution and shows the reliability of the technique for different polymers and for different applications ranging from live cell patterning to biofilm formation tests for bacteria linked to food-processing environments.
Journal ArticleDOI
Detecting Collagen Molecules at Picogram Level through Electric Field-Induced Accumulation.
Romina Rega,Martina Mugnano,Emilia Oleandro,Volodymyr Tkachenko,Danila del Giudice,Gianluca Bagnato,Pietro Ferraro,Simonetta Grilli,Sebastiano Gangemi +8 more
TL;DR: The results show that the p-jet is extremely promising for overcoming the current detection limits of collagen-based products in human fluids, performing 10 times better than the enzyme-linked immunosorbent assay (ELISA) and thus paving the way for the early diagnosis of related chronic diseases.
Journal ArticleDOI
Investigations on the Processing of Ceramic Filled Inks for 3D InkJet Printing
TL;DR: A simple and scalable process was investigated as a template for the production of inkjet printable functional ceramics that has sufficient stability for printing tensile specimens and can be used in an industrial-scale production of materials for abrasion-resistant components with adapted tribology.
Journal ArticleDOI
High-Resolution, Transparent, and Flexible Printing of Polydimethylsiloxane via Electrohydrodynamic Jet Printing for Conductive Electronic Device Applications
Rizwan Ul Hassan,Shaheer Mohiuddin Khalil,Saeed Ahmed Khan,Shah Khadijah Ali,Joon Yeon Moon,Dae-Hyun Cho,Doyoung Byun +6 more
TL;DR: In this paper , an electrohydrodynamic (EHD) jet printing technique was used to fabricate a high-resolution, transparent, and flexible strain sensor using a polydimethylsiloxane (PDMS)/xylene elastomer, where repetitive and controllable printed mesh structures were obtained.
References
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Journal ArticleDOI
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Journal ArticleDOI
Tethered Pyro-Electrohydrodynamic Spinning for Patterning Well-Ordered Structures at Micro- and Nanoscale
Sara Coppola,Veronica Vespini,Giuseppe Nasti,Oriella Gennari,Simonetta Grilli,Maurizio Ventre,Maria Iannone,Paolo A. Netti,Paolo A. Netti,Pietro Ferraro +9 more
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