Humic Substances: From Supramolecular Aggregation to Fractal Conformation-Is There Time for a New Paradigm?

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dc.contributor.authorAngelico, Ruggerocs
dc.contributor.authorColombo, Clauidocs
dc.contributor.authorDi Iorio, Erikacs
dc.contributor.authorBrtnický, Martincs
dc.contributor.authorFojt, Jakubcs
dc.contributor.authorConte, Pelegrinocs
dc.coverage.issue4cs
dc.coverage.volume13cs
dc.date.issued2023-02-09cs
dc.description.abstractNatural organic matter, including humic substances (HS), comprises complex secondary structures with no defined covalent chemical bonds and stabilized by inter- and intra-molecular interactions, such as hydrogen bonding, Van der Waal's forces, and pi-pi interactions. The latest view describes HS aggregates as a hydrogel-like structure comprised by a hydrophobic core of aromatic residues surrounded by polar and amphiphilic molecules akin a self-assembled soft material. A different view is based on the classification of this material as either mass or surface fractals. The former is intended as made by the clustering of macromolecules generating dendritic networks, while the latter have been modelled in terms of a solvent-impenetrable core surrounded by a layer of lyophilic material. This study reviews the evolution of the increasingly refined models that appeared in the literature, all capable to describing the physicochemical properties of HS. All the models are critically examined and revisited in terms of their ability to provide key information on the structural organization of HS. Understanding how the molecular association pathway influences aggregation of HS also provides a key acknowledgment of their role in the environment.en
dc.formattextcs
dc.format.extent1-32cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationApplied Sciences - Basel. 2023, vol. 13, issue 4, p. 1-32.en
dc.identifier.doi10.3390/app13042236cs
dc.identifier.issn2076-3417cs
dc.identifier.orcid0000-0001-5237-722Xcs
dc.identifier.orcid0000-0003-3087-000Xcs
dc.identifier.other183165cs
dc.identifier.researcheridI-4939-2018cs
dc.identifier.scopus56595240100cs
dc.identifier.urihttp://hdl.handle.net/11012/209213
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofApplied Sciences - Baselcs
dc.relation.urihttps://www.mdpi.com/2076-3417/13/4/2236cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2076-3417/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjecthumic substancesen
dc.subjectdissolved organic matteren
dc.subjectsupramolecular arrangementen
dc.subjectfractal structuresen
dc.subjectmacromolecular coilsen
dc.subjecthumic pseudo-micellesen
dc.subjecthumic superstructureen
dc.subjecthybrid hydrogelen
dc.titleHumic Substances: From Supramolecular Aggregation to Fractal Conformation-Is There Time for a New Paradigm?en
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183165en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:11en
sync.item.modts2025.01.17 16:54:38en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie a technologie ochrany životního prostředícs
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