Building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first-principles calculations

Abstract Biofunctionalized magnetite nanoparticles offer unique multifunctional capabilities that can drive nanomedical innovations. Designing synthetic bioorganic coatings and controlling their molecular behavior is crucial for achieving superior performance. However, accurately describing the inte...

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Main Authors: Paulo Siani, Enrico Bianchetti, Cristiana Di Valentin
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:npj Computational Materials
Online Access:https://doi.org/10.1038/s41524-024-01476-3
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author Paulo Siani
Enrico Bianchetti
Cristiana Di Valentin
author_facet Paulo Siani
Enrico Bianchetti
Cristiana Di Valentin
author_sort Paulo Siani
collection DOAJ
description Abstract Biofunctionalized magnetite nanoparticles offer unique multifunctional capabilities that can drive nanomedical innovations. Designing synthetic bioorganic coatings and controlling their molecular behavior is crucial for achieving superior performance. However, accurately describing the interactions between bio-inorganic nanosystem components requires reliable computational tools, with empirical force fields at their core. In this work, we integrate first-principles calculations with mainstream force fields to construct and simulate atomistic models of pristine and biofunctionalized magnetite nanoparticles with quantum mechanical accuracy. The practical implications of this approach are demonstrated through a case study of PEG (polyethylene glycol)-coated magnetite nanoparticles in physiological conditions, where we investigate how polymer chain length, in both heterogeneous and homogeneous coatings, impacts key functional properties in advanced nanosystem design. Our findings reveal that coating morphology controls polymer ordering, conformation, and polymer corona hydrogen bonding, highlighting the potential of this computational toolbox to advance next-generation magnetite-based nanosystems with enhanced performance in nanomedicine.
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spelling doaj-art-bf0d02d3aa7d4d13b56186429847d1ae2025-01-26T12:43:04ZengNature Portfolionpj Computational Materials2057-39602025-01-0111111710.1038/s41524-024-01476-3Building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first-principles calculationsPaulo Siani0Enrico Bianchetti1Cristiana Di Valentin2Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi 55Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi 55Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via R. Cozzi 55Abstract Biofunctionalized magnetite nanoparticles offer unique multifunctional capabilities that can drive nanomedical innovations. Designing synthetic bioorganic coatings and controlling their molecular behavior is crucial for achieving superior performance. However, accurately describing the interactions between bio-inorganic nanosystem components requires reliable computational tools, with empirical force fields at their core. In this work, we integrate first-principles calculations with mainstream force fields to construct and simulate atomistic models of pristine and biofunctionalized magnetite nanoparticles with quantum mechanical accuracy. The practical implications of this approach are demonstrated through a case study of PEG (polyethylene glycol)-coated magnetite nanoparticles in physiological conditions, where we investigate how polymer chain length, in both heterogeneous and homogeneous coatings, impacts key functional properties in advanced nanosystem design. Our findings reveal that coating morphology controls polymer ordering, conformation, and polymer corona hydrogen bonding, highlighting the potential of this computational toolbox to advance next-generation magnetite-based nanosystems with enhanced performance in nanomedicine.https://doi.org/10.1038/s41524-024-01476-3
spellingShingle Paulo Siani
Enrico Bianchetti
Cristiana Di Valentin
Building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first-principles calculations
npj Computational Materials
title Building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first-principles calculations
title_full Building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first-principles calculations
title_fullStr Building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first-principles calculations
title_full_unstemmed Building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first-principles calculations
title_short Building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first-principles calculations
title_sort building up accurate atomistic models of biofunctionalized magnetite nanoparticles from first principles calculations
url https://doi.org/10.1038/s41524-024-01476-3
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AT cristianadivalentin buildingupaccurateatomisticmodelsofbiofunctionalizedmagnetitenanoparticlesfromfirstprinciplescalculations