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Photocatalytic nanoparticles – From membrane interactions to antimicrobial and antiviral effects

Parra-Ortiz, Elisa and Malmsten, Martin LU (2022) In Advances in Colloid and Interface Science 299.
Abstract

As a result of increasing resistance among pathogens against antibiotics and anti-viral therapeutics, nanomaterials are attracting current interest as antimicrobial agents. Such materials offer triggered functionalities to combat challenging infections, based on either direct membrane action, effects of released ions, thermal shock induced by either light or magnetic fields, or oxidative photocatalysis. In the present overview, we focus on photocatalytic antimicrobial effects, in which light exposure triggers generation of reactive oxygen species. These, in turn, cause oxidative damage to key components in bacteria and viruses, including lipid membranes, lipopolysaccharides, proteins, and DNA/RNA. While an increasing body of studies... (More)

As a result of increasing resistance among pathogens against antibiotics and anti-viral therapeutics, nanomaterials are attracting current interest as antimicrobial agents. Such materials offer triggered functionalities to combat challenging infections, based on either direct membrane action, effects of released ions, thermal shock induced by either light or magnetic fields, or oxidative photocatalysis. In the present overview, we focus on photocatalytic antimicrobial effects, in which light exposure triggers generation of reactive oxygen species. These, in turn, cause oxidative damage to key components in bacteria and viruses, including lipid membranes, lipopolysaccharides, proteins, and DNA/RNA. While an increasing body of studies demonstrate that potent antimicrobial effects can be achieved by photocatalytic nanomaterials, understanding of the mechanistic foundation underlying such effects is still in its infancy. Addressing this, we here provide an overview of the current understanding of the interaction of photocatalytic nanomaterials with pathogen membranes and membrane components, and how this translates into antibacterial and antiviral effects.

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type
Contribution to journal
publication status
published
subject
keywords
Antibacterial, Antimicrobial, Antiviral, Membrane, Nanoparticle, Photocatalytic, Reactive oxygen species
in
Advances in Colloid and Interface Science
volume
299
article number
102526
publisher
Elsevier
external identifiers
  • scopus:85116373476
  • pmid:34610862
ISSN
0001-8686
DOI
10.1016/j.cis.2021.102526
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 The Author(s)
id
876bd9d1-97a1-4772-84d2-b6a6a497c1bc
date added to LUP
2021-10-21 12:56:46
date last changed
2024-04-20 14:46:38
@article{876bd9d1-97a1-4772-84d2-b6a6a497c1bc,
  abstract     = {{<p>As a result of increasing resistance among pathogens against antibiotics and anti-viral therapeutics, nanomaterials are attracting current interest as antimicrobial agents. Such materials offer triggered functionalities to combat challenging infections, based on either direct membrane action, effects of released ions, thermal shock induced by either light or magnetic fields, or oxidative photocatalysis. In the present overview, we focus on photocatalytic antimicrobial effects, in which light exposure triggers generation of reactive oxygen species. These, in turn, cause oxidative damage to key components in bacteria and viruses, including lipid membranes, lipopolysaccharides, proteins, and DNA/RNA. While an increasing body of studies demonstrate that potent antimicrobial effects can be achieved by photocatalytic nanomaterials, understanding of the mechanistic foundation underlying such effects is still in its infancy. Addressing this, we here provide an overview of the current understanding of the interaction of photocatalytic nanomaterials with pathogen membranes and membrane components, and how this translates into antibacterial and antiviral effects.</p>}},
  author       = {{Parra-Ortiz, Elisa and Malmsten, Martin}},
  issn         = {{0001-8686}},
  keywords     = {{Antibacterial; Antimicrobial; Antiviral; Membrane; Nanoparticle; Photocatalytic; Reactive oxygen species}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Advances in Colloid and Interface Science}},
  title        = {{Photocatalytic nanoparticles – From membrane interactions to antimicrobial and antiviral effects}},
  url          = {{http://dx.doi.org/10.1016/j.cis.2021.102526}},
  doi          = {{10.1016/j.cis.2021.102526}},
  volume       = {{299}},
  year         = {{2022}},
}