Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Antibiotic Mechanisms and Resistance: Molecular Insights and Therapeutic Strategies.

Antibiotics (Basel, Switzerland)·2026
Same author

CRISPR/Cas12-driven portable paper-based electrochemical aptasensor based on 0D/2D Au@Ti<sub>3</sub>C<sub>2</sub> MXene for AFB1 detection.

Food chemistry·2026
Same author

pH-responsive selenium nanoplatform for targeted drug release and immune remodeling in microbiota-associated colorectal cancer.

Journal of nanobiotechnology·2026
Same author

A Marine Alkaline Protease from <i>Bacillus safensis</i> DL12: Heterologous Expression, Purification and Preliminary Application in Animal Feed.

Microorganisms·2026
Same author

Nanosheet-reinforced smart polysaccharide hydrogels for MRSA-infected wound healing.

International journal of biological macromolecules·2026
Same author

Natural pollen stabilized Pickering emulsions incorporated in carboxymethyl cellulose-based active packaging films for strawberry preservation.

Food chemistry·2026

Related Experiment Video

Updated: Aug 25, 2025

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials
09:23

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

1.7K

High-Efficiency Reducing Strain for Producing Selenium Nanoparticles Isolated from Marine Sediment.

Liying Zhang1, Zhuting Li1, Lei Zhang1

  • 1Key Laboratory of Biotechnology and Bioresources Utilization (Ministry of Education), College of Life Science, Dalian Minzu University, Dalian 116600, China.

International Journal of Molecular Sciences
|October 14, 2022
PubMed
Summary

Marine microbes efficiently produce selenium nanoparticles (SeNPs). Differences in whole cell (SeNPs-S) versus extracellular extract (SeNPs-E) production impact SeNP morphology, antibacterial activity, and cytotoxicity, offering new research avenues.

Keywords:
extracellular extractmarine strainsreductionselenium nanoparticles (SeNPs)

More Related Videos

Biological Samples Preparation for Speciation at Cryogenic Temperature using High-Resolution X-Ray Absorption Spectroscopy
06:00

Biological Samples Preparation for Speciation at Cryogenic Temperature using High-Resolution X-Ray Absorption Spectroscopy

Published on: May 27, 2022

2.6K
Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
13:29

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

14.2K

Related Experiment Videos

Last Updated: Aug 25, 2025

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials
09:23

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

1.7K
Biological Samples Preparation for Speciation at Cryogenic Temperature using High-Resolution X-Ray Absorption Spectroscopy
06:00

Biological Samples Preparation for Speciation at Cryogenic Temperature using High-Resolution X-Ray Absorption Spectroscopy

Published on: May 27, 2022

2.6K
Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
13:29

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

14.2K

Area of Science:

  • Nanotechnology
  • Microbiology
  • Materials Science

Background:

  • Selenium nanoparticles (SeNPs) offer superior absorption and lower toxicity compared to other selenium forms.
  • Limited research exists on marine microbial strains capable of reducing selenite (Se(IV)) to elemental selenium (Se(0)).

Purpose of the Study:

  • To screen marine strains for efficient sodium selenite reduction to SeNPs.
  • To characterize and compare SeNPs produced by whole cells (SeNPs-S) and extracellular extracts (SeNPs-E).
  • To investigate the differential antibacterial activity and cytotoxicity of SeNPs-S and SeNPs-E.

Main Methods:

  • Screening of 40 marine strains for selenite reduction.
  • Characterization of SeNPs using FTIR, UV, Raman, XRD, and SEM.
  • Assessment of antibacterial activity against Gram-positive and Gram-negative bacteria.
  • Cytotoxicity evaluation at varying concentrations.

Main Results:

  • A highly efficient selenite-reducing marine strain was identified.
  • SeNPs-S and SeNPs-E displayed distinct morphologies and surface biomacromolecular capping.
  • Opposing antibacterial effects were observed for SeNPs-S and SeNPs-E against different bacterial types.
  • SeNPs-E showed reduced cytotoxicity compared to SeNPs-S at higher concentrations (200 μg/mL).

Conclusions:

  • This study reports the first detailed comparison of SeNPs produced by whole microbial cells versus extracellular extracts.
  • Morphological and surface differences dictate the functional properties, including antibacterial efficacy and cytotoxicity.
  • Marine microbial SeNPs present a promising platform for diverse applications, with distinct characteristics based on production method.