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

Microbial Biosensors01:17

Microbial Biosensors

91
Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
91

You might also read

Related Articles

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

Sort by
Same author

Air Pollution Monitoring with Nanoscaled Materials in Chemoresistive Gas Sensors.

ACS applied materials & interfaces·2026
Same author

ZnCo<sub>2</sub>O<sub>4</sub>‑Based Nanoparticle Sensor for 1‑Pentanol Detection.

ACS omega·2026
Same author

Antifungal Activity of Nontoxic Nanocomposite Based on Silver and Reduced Graphene Oxide against Dermatophytes and <i>Candida</i> spp.

ACS biomaterials science & engineering·2023
Same author

Low-Temperature Carbon Dioxide Gas Sensor Based on Yolk-Shell Ceria Nanospheres.

ACS applied materials & interfaces·2020

Related Experiment Video

Updated: May 7, 2026

ELIME Enzyme Linked Immuno Magnetic Electrochemical Method for Mycotoxin Detection
12:11

ELIME Enzyme Linked Immuno Magnetic Electrochemical Method for Mycotoxin Detection

Published on: October 23, 2009

14.2K

Multiple-Yolk-Shell NiO Microspheres for Selective Detection of m-Xylene.

Reinaldo Dos Santos Theodoro1, Gustavo Sanghikian Marques Dos Santos1, Bruna Soares de Sá1,2

  • 1Laboratory of Materials for Sustainability (LabMatSus), São Paulo State University (UNESP), Rua Cristóvão Colombo 2265, São José do Rio Preto 15054-000, Brazil.

ACS Applied Materials & Interfaces
|October 5, 2024
PubMed
Summary

Researchers developed novel nickel oxide (NiO) yolk-shell structures for highly sensitive and selective detection of meta-xylene (m-xylene), a toxic volatile organic compound. The NiO-yolk triple-shell (NiO-YTS) composite demonstrated superior performance for m-xylene gas sensing.

Keywords:
chemoresistivemicrowave synthesismultishell structurenickel oxideselectivityvolatile organic compounds

More Related Videos

Microwave-driven Synthesis of Iron Oxide Nanoparticles for Fast Detection of Atherosclerosis
08:13

Microwave-driven Synthesis of Iron Oxide Nanoparticles for Fast Detection of Atherosclerosis

Published on: March 22, 2016

10.5K
Visual Detection of Multiple Nucleic Acids in a Capillary Array
08:56

Visual Detection of Multiple Nucleic Acids in a Capillary Array

Published on: November 15, 2017

7.2K

Related Experiment Videos

Last Updated: May 7, 2026

ELIME Enzyme Linked Immuno Magnetic Electrochemical Method for Mycotoxin Detection
12:11

ELIME Enzyme Linked Immuno Magnetic Electrochemical Method for Mycotoxin Detection

Published on: October 23, 2009

14.2K
Microwave-driven Synthesis of Iron Oxide Nanoparticles for Fast Detection of Atherosclerosis
08:13

Microwave-driven Synthesis of Iron Oxide Nanoparticles for Fast Detection of Atherosclerosis

Published on: March 22, 2016

10.5K
Visual Detection of Multiple Nucleic Acids in a Capillary Array
08:56

Visual Detection of Multiple Nucleic Acids in a Capillary Array

Published on: November 15, 2017

7.2K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Environmental Science

Background:

  • Meta-xylene (m-xylene) is a toxic volatile organic compound (VOC) with widespread industrial use.
  • Accurate detection of m-xylene is crucial due to its significant risks to human health and the environment.
  • Development of highly sensitive and selective gas sensors for m-xylene is a critical need.

Purpose of the Study:

  • To synthesize novel NiO-based yolk-shell structures for enhanced m-xylene gas sensing.
  • To investigate and compare the sensing performance of NiO-yolk double-shell (NiO-YDS) and NiO-yolk triple-shell (NiO-YTS) composites.
  • To evaluate the sensitivity, selectivity, stability, and response time of the developed sensors for m-xylene detection.

Main Methods:

  • Microwave-assisted solvothermal synthesis of NiO spheres.
  • Preparation of NiO/Ni-BTC and NiO/Ni-PTA composites using trimesic acid (H3BTC) and p-terephthalic acid (PTA) linkers, respectively.
  • Fabrication and testing of NiO-YDS and NiO-YTS gas sensors for various VOCs, including m-xylene, under dry conditions.

Main Results:

  • Both NiO-YDS and NiO-YTS composites showed excellent sensitivity and selectivity for m-xylene detection.
  • The NiO-YTS sensor exhibited superior sensitivity (217.5%) compared to the NiO-YDS sensor (179.8%) at 350 °C in dry air.
  • The NiO-YTS sensor demonstrated stable and reproducible performance, with a low theoretical detection limit of 5.43 ppb and fast response/recovery times (89s/191s).

Conclusions:

  • The synthesized NiO-YDS and NiO-YTS composites represent a promising new class of materials for highly sensitive and selective m-xylene gas sensors.
  • The NiO-YTS composite, in particular, offers enhanced performance for critical m-xylene detection applications.
  • The developed microwave-assisted solvothermal method provides an efficient route for fabricating advanced NiO-based gas sensing materials.