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

Field Effect Transistor01:29

Field Effect Transistor

531
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
531

You might also read

Related Articles

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

Sort by
Same author

An exploratory analysis of driver gene alterations and their potential prognostic relevance in endometrial cancer with POLE exonuclease domain mutations.

Gynecologic oncology·2025
Same author

Advanced TiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> Bilayer ALD Coatings for Improved Lithium-Rich Layered Oxide Electrodes.

ACS applied materials & interfaces·2024
Same author

High-Performance P- and N-Type SiGe/Si Strained Super-Lattice FinFET and CMOS Inverter: Comparison of Si and SiGe FinFET.

Nanomaterials (Basel, Switzerland)·2023
Same author

Fabry-Perot interferometric calibration of van der Waals material-based nanomechanical resonators.

Nanoscale advances·2022
Same author

Photothermal Responsivity of van der Waals Material-Based Nanomechanical Resonators.

Nanomaterials (Basel, Switzerland)·2022
Same author

Phyto-sesquiterpene lactones DET and DETD-35 induce ferroptosis in vemurafenib sensitive and resistant melanoma via GPX4 inhibition and metabolic reprogramming.

Pharmacological research·2022

Related Experiment Video

Updated: Aug 25, 2025

Sensing of Barrier Tissue Disruption with an Organic Electrochemical Transistor
11:17

Sensing of Barrier Tissue Disruption with an Organic Electrochemical Transistor

Published on: February 10, 2014

11.8K

Opto Field-Effect Transistors for Detecting Quercetin-Cu2+ Complex.

Pradhana Jati Budhi Laksana1,2,3, Li-Chu Tsai4, Chang-Cheng Lin4

  • 1Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.

Sensors (Basel, Switzerland)
|October 14, 2022
PubMed
Summary

This study introduces silicon nanowire biosensors (bio-NWFETs) for molecular absorption sensing. The novel opto-FET method accurately detects copper ion concentrations, outperforming traditional spectrophotometry.

Keywords:
copper ionfield-effect transistormetal complexesmolecular absorption spectrummolecular chargeopticalquercetin

More Related Videos

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors
07:22

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

17.0K
Author Spotlight: Advancing Therapeutics to Treat Vibriosis in Humans and Aquatic Organisms
03:29

Author Spotlight: Advancing Therapeutics to Treat Vibriosis in Humans and Aquatic Organisms

Published on: May 31, 2024

568

Related Experiment Videos

Last Updated: Aug 25, 2025

Sensing of Barrier Tissue Disruption with an Organic Electrochemical Transistor
11:17

Sensing of Barrier Tissue Disruption with an Organic Electrochemical Transistor

Published on: February 10, 2014

11.8K
Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors
07:22

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

17.0K
Author Spotlight: Advancing Therapeutics to Treat Vibriosis in Humans and Aquatic Organisms
03:29

Author Spotlight: Advancing Therapeutics to Treat Vibriosis in Humans and Aquatic Organisms

Published on: May 31, 2024

568

Area of Science:

  • Nanotechnology
  • Biosensors
  • Optoelectronics

Background:

  • Silicon nanowire field-effect transistors (bio-NWFETs) offer potential for sensitive molecular detection.
  • Molecular absorption sensing is crucial for various analytical applications.
  • Existing methods may have limitations in sensitivity or throughput.

Purpose of the Study:

  • To investigate the application of bio-NWFETs as molecular absorption sensors.
  • To demonstrate an opto-FET approach for detecting molecular interactions and metal ions.
  • To quantify copper ion concentrations using molecular absorption.

Main Methods:

  • Utilized silicon nanowire field-effect transistors (bio-NWFETs) integrated with an opto-electronic detection system.
  • Employed quercetin and Copper (Cu2+) ions as model analytes.
  • Applied an opto-FET approach to measure photon absorption at 450 nm, correlating it with Cu2+ concentration.

Main Results:

  • Demonstrated that photons at 450 nm are absorbed by the molecular complex, with absorption intensity dependent on Cu2+ concentration.
  • Achieved quantitative detection of Cu2+ from 0.1 μM to 100 μM.
  • Observed a linear increase in photon response with increasing copper concentration under optimized bias.
  • The opto-FET method exhibited enhanced absorbance compared to commercial UV-Vis spectrophotometry.

Conclusions:

  • Bio-NWFETs with an opto-FET approach are effective for molecular absorption sensing.
  • This method provides a sensitive and quantitative platform for detecting metal ions like Cu2+.
  • The developed opto-FET technique shows promise for improved molecular absorption analysis.