Ordered assemblies of peptide nanoparticles with only positive charge

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dc.contributor.authorShi, Yi
dc.contributor.authorZhang, Tianren
dc.contributor.authorGuo, Rui
dc.contributor.authorZhang, Zihan
dc.contributor.authorMcCahill, Amanda L.
dc.contributor.authorTang, Yao
dc.contributor.authorLiskey, Sabrina E.
dc.contributor.authorYang, Dai-Bei
dc.contributor.authorKloxin, Christopher J.
dc.contributor.authorSaven, Jeffery G.
dc.contributor.authorPochan, Darrin J.
dc.date.accessioned2025-03-03T18:16:32Z
dc.date.available2025-03-03T18:16:32Z
dc.date.issued2024-11-20
dc.descriptionThis article was originally published in Nature Communications. The version of record is available at: https://doi.org/10.1038/s41467-024-54340-9. © The Author(s) 2024. Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/. This research was featured in UDaily on 12/10/2025 at: https://www.udel.edu/udaily/2024/december/darrin-pochan-national-academy-of-inventors/
dc.description.abstractSurface charge patchiness of different charge types can influence the solution behaviours of colloidal particles and globular proteins. Herein, coiled-coil ‘bundlemer’ nanoparticles that display only a single type of surface charge (SC) are computationally designed to compare their solution behaviours to mixed charge-type (MC) counterparts with both positively and negatively charged side chains. Nematic and columnar liquid crystal phases are discovered in low concentrations of SC particles, indicative of particle end-to-end stacking into columns combined with lateral electrostatic repulsion between columns, while MC particles with the same net charge and particle shape produced only amorphous, soluble aggregates. Similarly, porous lattices are formed in mixtures of SC/MC particles of opposite charges while MC/MC mixtures of opposite charges produce only amorphous aggregates. The lattice structure is inferred with a machine learning optimization approach. The differences between SC and MC particle behaviours directly show the importance of surface electrostatic patchiness.
dc.description.sponsorshipPrimary support for peptide design, synthesis and purification, and solution assembly and characterization were provided by the Department of Energy, Office of Basic Energy Sciences, Biomolecular Materials Programme under grant no. DE-SC0019355 (Y.S., C.J.K., and D.J.P.), and DE-SC0019282 (D.-B.Y. and J.G.S.). Primary support for particle simulations and lattice calculations was provided by NSF through the University of Delaware Materials Research Science and Engineering Centre, DMR-2011824 (T.Z., R.G., D.-B.Y., S.E.L., J.G.S., and D.J.P.). Partial support for peptide design, synthesis, purification, and characterization is provided by the NSF through CHE-2003897 (Z.Z., A.L.M., C.J.K., and D.J.P.). The authors also acknowledge the use of facilities and instrumentation supported by NSF through the University of Delaware Materials Research Science and Engineering Centre, DMR-2011824, and by the National Institute of General Medical Sciences, GNMS (P20-GM104316), from the National Institute of Health. The manuscript preparation was also supported by cooperative agreement #370NANB17H302 from the National Institute of Standards and Technology (NIST), U.S. Department of Commerce (Y.T. and D.J.P.). This work used the Extreme Science and Engineering Discovery Environment (XSEDE), (85) which is supported by National Science Foundation grant number ACI-1548562; XSEDE stampede2 resources were utilized through allocation TG-CHE110041 (T.Z., R.G., D.-B.Y., and J.G.S.). The LiX beamline is part of the Centre for BioMolecular Structure (CBMS), which is primarily supported by the National Institutes of Health, the National Institute of General Medical Sciences (NIGMS) through a P30 grant (P30GM133893), and the DOE Office of Biological and Environmental Research (KP1605010). LiX also received additional support from NIH Grant S10 OD012331. As part of NSLS-II, a national user facility at Brookhaven National Laboratory, work performed at the CBMS is supported in part by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences Programme under contract number DE-SC0012704.
dc.identifier.citationShi, Y., Zhang, T., Guo, R. et al. Ordered assemblies of peptide nanoparticles with only positive charge. Nat Commun 15, 10057 (2024). https://doi.org/10.1038/s41467-024-54340-9
dc.identifier.issn2041-1723
dc.identifier.urihttps://udspace.udel.edu/handle/19716/35867
dc.language.isoen_US
dc.publisherNature Communications
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectpeptides
dc.subjectself-assembly
dc.titleOrdered assemblies of peptide nanoparticles with only positive charge
dc.typeArticle

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