Abstract

The increasing use and discharge of nanoparticles (NPs) pose risks to microorganisms that maintain the health of aquatic ecosystems. Although NPs are toxic to microorganisms, they tend to form microbial aggregates to protect themselves. Two main mechanisms account for the reduced toxicity: the dense physical structure acts as a barrier to NP exposure in the interior of the aggregate, and aggregation stabilizes a complex microbial ecosystem that enhances the ability of the community to adapt to prolonged NP exposure. We highlight the opportunities and challenges for managing microbial aggregates in wastewater treatment to remove or control NPs. For example, understanding the resistance mechanisms can help to design smart NPs that are less toxic to useful microorganisms or more toxic towards pathogenic microorganisms.

Original languageEnglish (US)
JournalTrends in Biotechnology
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Nanoparticles
Toxicity
Microorganisms
Poisons
Ecosystem
Aquatic ecosystems
Waste Water
Wastewater treatment
Ecosystems
Agglomeration
Health

Keywords

  • community interactions
  • extracellular polymeric substances (EPS)
  • microbial aggregates
  • nanoparticle toxicity
  • nanoparticles

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering

Cite this

How Microbial Aggregates Protect against Nanoparticle Toxicity. / Tang, Jun; Wu, Yonghong; Esquivel-Elizondo, Sofia; Sørensen, Søren J.; Rittmann, Bruce.

In: Trends in Biotechnology, 01.01.2018.

Research output: Contribution to journalArticle

Tang, Jun ; Wu, Yonghong ; Esquivel-Elizondo, Sofia ; Sørensen, Søren J. ; Rittmann, Bruce. / How Microbial Aggregates Protect against Nanoparticle Toxicity. In: Trends in Biotechnology. 2018.
@article{b978c99fe2024718a2c9f0822cc6cc61,
title = "How Microbial Aggregates Protect against Nanoparticle Toxicity",
abstract = "The increasing use and discharge of nanoparticles (NPs) pose risks to microorganisms that maintain the health of aquatic ecosystems. Although NPs are toxic to microorganisms, they tend to form microbial aggregates to protect themselves. Two main mechanisms account for the reduced toxicity: the dense physical structure acts as a barrier to NP exposure in the interior of the aggregate, and aggregation stabilizes a complex microbial ecosystem that enhances the ability of the community to adapt to prolonged NP exposure. We highlight the opportunities and challenges for managing microbial aggregates in wastewater treatment to remove or control NPs. For example, understanding the resistance mechanisms can help to design smart NPs that are less toxic to useful microorganisms or more toxic towards pathogenic microorganisms.",
keywords = "community interactions, extracellular polymeric substances (EPS), microbial aggregates, nanoparticle toxicity, nanoparticles",
author = "Jun Tang and Yonghong Wu and Sofia Esquivel-Elizondo and S{\o}rensen, {S{\o}ren J.} and Bruce Rittmann",
year = "2018",
month = "1",
day = "1",
doi = "10.1016/j.tibtech.2018.06.009",
language = "English (US)",
journal = "Trends in Biotechnology",
issn = "0167-7799",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - How Microbial Aggregates Protect against Nanoparticle Toxicity

AU - Tang, Jun

AU - Wu, Yonghong

AU - Esquivel-Elizondo, Sofia

AU - Sørensen, Søren J.

AU - Rittmann, Bruce

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The increasing use and discharge of nanoparticles (NPs) pose risks to microorganisms that maintain the health of aquatic ecosystems. Although NPs are toxic to microorganisms, they tend to form microbial aggregates to protect themselves. Two main mechanisms account for the reduced toxicity: the dense physical structure acts as a barrier to NP exposure in the interior of the aggregate, and aggregation stabilizes a complex microbial ecosystem that enhances the ability of the community to adapt to prolonged NP exposure. We highlight the opportunities and challenges for managing microbial aggregates in wastewater treatment to remove or control NPs. For example, understanding the resistance mechanisms can help to design smart NPs that are less toxic to useful microorganisms or more toxic towards pathogenic microorganisms.

AB - The increasing use and discharge of nanoparticles (NPs) pose risks to microorganisms that maintain the health of aquatic ecosystems. Although NPs are toxic to microorganisms, they tend to form microbial aggregates to protect themselves. Two main mechanisms account for the reduced toxicity: the dense physical structure acts as a barrier to NP exposure in the interior of the aggregate, and aggregation stabilizes a complex microbial ecosystem that enhances the ability of the community to adapt to prolonged NP exposure. We highlight the opportunities and challenges for managing microbial aggregates in wastewater treatment to remove or control NPs. For example, understanding the resistance mechanisms can help to design smart NPs that are less toxic to useful microorganisms or more toxic towards pathogenic microorganisms.

KW - community interactions

KW - extracellular polymeric substances (EPS)

KW - microbial aggregates

KW - nanoparticle toxicity

KW - nanoparticles

UR - http://www.scopus.com/inward/record.url?scp=85049924561&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049924561&partnerID=8YFLogxK

U2 - 10.1016/j.tibtech.2018.06.009

DO - 10.1016/j.tibtech.2018.06.009

M3 - Article

C2 - 30029801

AN - SCOPUS:85049924561

JO - Trends in Biotechnology

JF - Trends in Biotechnology

SN - 0167-7799

ER -