Publication detail

Methamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elements

MAYORGA BURREZO, P. MAYORGA-MARTINEZ, C. KUCHAŘ, M. PUMERA, M.

Original Title

Methamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elements

Type

journal article in Web of Science

Language

English

Original Abstract

The growing consumption of drugs of abuse together with the inefficiency of the current wastewater treatment plants toward their presence has resulted in an emergent class of pollutants. Thus, the development of alternative approaches to remediate this environmental threat is urgently needed. Microrobots, combining autonomous motion with great tunability for the development of specific tasks, have turned into promising candidates to take on the challenge. Here, hybrid urchin-like hematite (alpha-Fe2O3) microparticles carrying magnetite (Fe3O4) nanoparticles and surface functionalization with organic beta-cyclodextrin (CD) molecules are prepared with the aim of on-the-fly encapsulation of illicit drugs into the linked CD cavities of moving microrobots. The resulting mag-CD microrobots are tested against methamphetamine (MA), proving their ability for the removal of this psychoactive substance. A dramatically enhanced capture of MA from water with active magnetically powered microrobots when compared with static passive CD-modified particles is demonstrated. This work shows the advantages of enhanced mass transfer provided by the externally controlled magnetic navigation in microrobots that together with the versatility of their design is an efficient strategy to clean polluted waters. The study explores the use of magnetic cyclodextrin (CD) functionalized microrobots for cleaning water contaminated with drug residues, specifically methamphetamine. These microrobots, with a hematite/magnetite core and CD surface, enhance pollutant removal due to their combined magnetic movement and hydrophobic cavities of CDs on microrobot surfaces. The design emphasizes autonomous movement, improved mass transfer, and targeted functionalization for effective remediation.image

Keywords

illicit drugs; iron oxides; magnetic actuation; water remediation

Authors

MAYORGA BURREZO, P.; MAYORGA-MARTINEZ, C.; KUCHAŘ, M.; PUMERA, M.

Released

1. 6. 2024

Publisher

WILEY-V C H VERLAG GMBH

Location

WEINHEIM

ISBN

1613-6829

Periodical

Small

Year of study

20

Number

26

State

Federal Republic of Germany

Pages count

7

URL

https://onlinelibrary.wiley.com/doi/10.1002/smll.202306943

BibTex

@article{BUT188956,
  author="Paula {Mayorga Burrezo} and Carmen C. {Mayorga-Martinez} and Martin {Kuchař} and Martin {Pumera}",
  title="Methamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elements",
  journal="Small",
  year="2024",
  volume="20",
  number="26",
  pages="7",
  doi="10.1002/smll.202306943",
  issn="1613-6829",
  url="https://onlinelibrary.wiley.com/doi/10.1002/smll.202306943"
}