@MattiaUbertini

Postdoc at FMI - chromosome dynamics, transcriptional regulation

 Trieste, Friuli-Venezia Giulia
Joined October 2015
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I am happy to share that the last work from my PhD time is out: Universal Time and Length Scales of Polar Active Polymer Melts pubs.acs.org/doi/10.1021/acs…

Universal Time and Length Scales of Polar Active Polymer Melts

Abstract. We present an in-depth multiscale analysis of the conformations and dynamics of polar active polymers, comparing very dilute and very dense condi

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Most interestingly, we have found that the chain dynamics is not controlled by polymer entanglements but only on the strength of the active forces.
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To know more about our work, you can check the paper: pubs.acs.org/doi/10.1021/acs…
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The last work of my PhD is out. Here, we investigate how geometric constraints (slit-confinement) can be exploited for the synthesis of self-assembled topological polymer networks (Olympic networks). pubs.acs.org/doi/10.1021/acs…

Spatial Organization of Slit-Confined Melts of Ring Polymers with Nonconserved Topology: A Lattice...

Abstract. We present Monte Carlo computer simulations for melts of semiflexible randomly knotted and randomly concatenated ring polymers on the fcc lattice

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In particular, we show that slit-confinement can be exploited for the synthesis of networks that act softer under mechanical stress.
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New preprint out arxiv.org/abs/2302.08225 In this work we perform topological analysis of melts of topologically complex rings and we show how to recover the entanglement of the system from its topology.
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From the analysis of 1) single-ring (knots), 2) couples of rings (two-chain links), 3) triplets of rings (three-chain links), we show that two-chain links capture almost the full entanglement of the system with three-chain links adding minor corrections.
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And now Is out! pubs.acs.org/doi/10.1021/acs…

Topological Analysis and Recovery of Entanglements in Polymer Melts

Abstract. The viscous flow of polymer chains in dense melts is dominated by topological constraints whenever the single-chain contour length, N, becomes la

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Finally out!
EutopiaCOST@CostEutopia30 Nov 2022
New paper! Monte Carlo simulations show that ring polymers are double-folded above the entanglement length, while threadings are localized on smaller scales, reconciling different theories bit.ly/3UyQhAd @MacroJrnls_ACS @univienna @Sissaschool #topology #rings
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Mattia Ubertini retweeted
EutopiaCOST@CostEutopia30 Nov 2022
New paper! Monte Carlo simulations show that ring polymers are double-folded above the entanglement length, while threadings are localized on smaller scales, reconciling different theories bit.ly/3UyQhAd @MacroJrnls_ACS @univienna @Sissaschool #topology #rings
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