Detail publikace

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

ANGELICO, R. COLOMBO, C. DI IORIO, E. BRTNICKÝ, M. FOJT, J. CONTE, P.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Natural 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.

Klíčová slova

humic substances; dissolved organic matter; supramolecular arrangement; fractal structures; macromolecular coils; humic pseudo-micelles; humic superstructure; hybrid hydrogel

Autoři

ANGELICO, R.; COLOMBO, C.; DI IORIO, E.; BRTNICKÝ, M.; FOJT, J.; CONTE, P.

Vydáno

9. 2. 2023

Nakladatel

MDPI

ISSN

2076-3417

Periodikum

Applied Sciences - Basel

Ročník

13

Číslo

4

Stát

Švýcarská konfederace

Strany od

1

Strany do

32

Strany počet

32

URL

https://www.mdpi.com/2076-3417/13/4/2236

Plný text v Digitální knihovně

http://hdl.handle.net/11012/209213

BibTex

@article{BUT183165,
  author="Ruggero {Angelico} and Clauido {Colombo} and Erika {Di Iorio} and Martin {Brtnický} and Jakub {Fojt} and Pelegrino {Conte}",
  title="Humic Substances: From Supramolecular Aggregation to Fractal Conformation-Is There Time for a New Paradigm?",
  journal="Applied Sciences - Basel",
  year="2023",
  volume="13",
  number="4",
  pages="1--32",
  doi="10.3390/app13042236",
  issn="2076-3417",
  url="https://www.mdpi.com/2076-3417/13/4/2236"
}