* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Friday, July 11, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Immersive sports and entertainment venue Cosm set to build its 5th location in Cleveland – WKYC

    Cosm Reveals Exciting Vision for Its 5th Immersive Sports and Entertainment Venue in Cleveland

    Monumental Sports & Entertainment’s Samantha Brady on the Power of the RSN’s Direct-to-Consumer Streaming Service Monumental+ – Sports Video Group

    Samantha Brady Reveals How Monumental+ is Transforming Sports Streaming with Direct-to-Consumer Access

    Moses Singer Welcomes Entertainment and Intellectual Property Partner Frederick Bimbler – Yahoo Finance

    Moses Singer Expands Team with New Entertainment and Intellectual Property Partner Frederick Bimbler

    Longhua District and Max-Matching Entertainments, supported by RWS Global forge strategic partnership to develop international IP-themed entertainment complex – Amusement Today

    Longhua District and Max-Matching Entertainments, supported by RWS Global forge strategic partnership to develop international IP-themed entertainment complex – Amusement Today

    Government whip to withdraw Entertainment Complex Bill on July 9 – Nation Thailand

    Government whip to withdraw Entertainment Complex Bill on July 9 – Nation Thailand

    Magicians and Battlebots light up Las Vegas entertainment scene – KSNV

    Magicians and Battlebots Take Las Vegas Entertainment by Storm

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Stallion Uranium Provides Update on Technology Data Acquisition Agreement – GlobeNewswire

    Stallion Uranium Announces Exciting Progress in Technology Data Acquisition Agreement

    2025 WE Local Prague Recap: Inspiring Women in Engineering and Technology – Society of Women Engineers

    2025 WE Local Prague Recap: Inspiring Women in Engineering and Technology – Society of Women Engineers

    SMPTE Opens Early Bird Registration for Media Technology Summit – TVTechnology

    SMPTE Launches Early Bird Registration for Exciting Media Technology Summit

    Google Fiber puts Nokia network slicing technology to the test – Fierce Network

    Google Fiber Puts Nokia’s Network Slicing Technology to the Ultimate Test

    Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

    Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

    AI and the Trust Revolution: How Technology Is Transforming Human Connections – Foreign Affairs

    AI and the Trust Revolution: How Technology Is Transforming Human Connections – Foreign Affairs

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Immersive sports and entertainment venue Cosm set to build its 5th location in Cleveland – WKYC

    Cosm Reveals Exciting Vision for Its 5th Immersive Sports and Entertainment Venue in Cleveland

    Monumental Sports & Entertainment’s Samantha Brady on the Power of the RSN’s Direct-to-Consumer Streaming Service Monumental+ – Sports Video Group

    Samantha Brady Reveals How Monumental+ is Transforming Sports Streaming with Direct-to-Consumer Access

    Moses Singer Welcomes Entertainment and Intellectual Property Partner Frederick Bimbler – Yahoo Finance

    Moses Singer Expands Team with New Entertainment and Intellectual Property Partner Frederick Bimbler

    Longhua District and Max-Matching Entertainments, supported by RWS Global forge strategic partnership to develop international IP-themed entertainment complex – Amusement Today

    Longhua District and Max-Matching Entertainments, supported by RWS Global forge strategic partnership to develop international IP-themed entertainment complex – Amusement Today

    Government whip to withdraw Entertainment Complex Bill on July 9 – Nation Thailand

    Government whip to withdraw Entertainment Complex Bill on July 9 – Nation Thailand

    Magicians and Battlebots light up Las Vegas entertainment scene – KSNV

    Magicians and Battlebots Take Las Vegas Entertainment by Storm

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Stallion Uranium Provides Update on Technology Data Acquisition Agreement – GlobeNewswire

    Stallion Uranium Announces Exciting Progress in Technology Data Acquisition Agreement

    2025 WE Local Prague Recap: Inspiring Women in Engineering and Technology – Society of Women Engineers

    2025 WE Local Prague Recap: Inspiring Women in Engineering and Technology – Society of Women Engineers

    SMPTE Opens Early Bird Registration for Media Technology Summit – TVTechnology

    SMPTE Launches Early Bird Registration for Exciting Media Technology Summit

    Google Fiber puts Nokia network slicing technology to the test – Fierce Network

    Google Fiber Puts Nokia’s Network Slicing Technology to the Ultimate Test

    Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

    Kaseya Extends Community Investment with Addition of Technology Marketing Toolkit – Kaseya

    AI and the Trust Revolution: How Technology Is Transforming Human Connections – Foreign Affairs

    AI and the Trust Revolution: How Technology Is Transforming Human Connections – Foreign Affairs

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Biodegradable sensor monitors levels of pesticides via direct contact with surface of fruit and vegetables

February 3, 2024
in Science
Biodegradable sensor monitors levels of pesticides via direct contact with surface of fruit and vegetables
Share on FacebookShare on Twitter

Biodegradable sensor monitors levels of pesticides via direct contact with surface of fruit and vegetables

Electrochemical sensors can combine affordability, rapid detection, miniaturization, convenience, easy of use, high selectivity and in situ pesticide detection. Credit: Paulo Augusto Raymundo-Pereira

Researchers at the University of São Paulo (USP) and the Federal University of Viçosa (UFV) in Brazil have developed a sustainable sensor that can be placed directly on the surface of a vegetable or fruit to detect the presence of pesticides. Known for this reason as “plant-wearable,” it is made of cellulose acetate, a material derived from wood pulp.

The device has the potential to help assure food safety in a world that increasingly suffers from a shortage of food and the environmental and health problems caused by excessive use of agrochemicals.

The study is published in the journal Biomaterials Advances.

Pesticides are widely used to raise crop yields and are typically applied by spraying, but only 50% reach their target. The rest ends up in soil, groundwater, surface water, raw drinking water, wastewater and food products. Monitoring of pesticide levels in water, soil and food is therefore essential to prevent contact between these toxic substances and the public via the skin, lungs or digestive system.

The analytical tools most often used for this purpose are chromatographic techniques, which are effective but have drawbacks such as the need for pretreatment of samples, expensive equipment and qualified laboratory specialists, as well as the long time taken to complete the analysis and lack of portability. The unsafe residues produced by organic solvents are also a significant problem under present-day conditions.

“As an alternative, electrochemical sensors can combine affordability, rapid detection, miniaturization, large-scale production, convenience, ease of use, high selectivity and in situ pesticide detection. Our invention has all these features. The analysis is performed directly on the surface of fruit, vegetables or leaves. Hence the term plant-wearable,” said Paulo Augusto Raymundo-Pereira, last author of the article and a researcher at the São Carlos Physics Institute (IFSC-USP).

“However, instead of the usual materials, which are environmentally unsustainable and take a long time to degrade, such as ceramics or plastic polymers derived from petroleum, we used cellulose acetate, a material derived from plants that has little impact on the environment and disintegrates completely in 340 days or less depending on local conditions. Of course, it has to have appropriate characteristics for any sensor, including low cost, portability and flexibility.”

The biodegradable cellulose acetate substrate was produced by a casting method in which the material was placed in a space with the required shape, and the full electrochemical system with three electrodes was deposited by screen printing.

The researchers carried out laboratory tests in which a solution containing carbendazim, a fungicide, and paraquat, a herbicide, was sprayed on lettuce and tomatoes in a simulation of real-world use. Paraquat was banned by the European Union in 2003 owing to its harmful effects on humans but is still used in Brazil. The sensor was then directly attached to the lettuce and tomatoes, and measurements showed a level of detection compatible with those obtained with polyethylene terephthalate, the sensor material most frequently used for this purpose.

Excessive pesticide levels

The study also investigated whether washing and immersing vegetables in a liter of water for two hours was effective in removing pesticide residues. The results showed removal of 40% of the carbendazim and 60% of the paraquat from lettuce, and 64% of both from tomatoes.

“Washing and immersion were clearly insufficient to remove residues of the pesticides. At least 10% remained in the leaves or peel,” Raymundo-Pereira said.

The technology can be useful for sanitary surveillance agencies worldwide, he added, as well as sellers of organic produce to certify absence of pesticides. Farmers generally can use it to monitor levels of pesticides in the field and be sure of applying only the requisite dose to each crop or part of a plantation. Pesticide use could decrease as a result, while yields will still rise, leading to lower consumer prices.

More information:
Samiris Côcco Teixeira et al, Sustainable plant-wearable sensors for on-site, rapid decentralized detection of pesticides toward precision agriculture and food safety, Biomaterials Advances (2023). DOI: 10.1016/j.bioadv.2023.213676

Citation:
Biodegradable sensor monitors levels of pesticides via direct contact with surface of fruit and vegetables (2024, February 2)
retrieved 2 February 2024
from https://phys.org/news/2024-02-biodegradable-sensor-pesticides-contact-surface.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-02-biodegradable-sensor-pesticides-contact-surface.html

Tags: Biodegradablesciencesensor
Previous Post

A sleeker facial recognition technology tested on Michelangelo’s David

Next Post

Progress on chip-based spontaneous four-wave mixing quantum light sources

Stallion Uranium Provides Update on Technology Data Acquisition Agreement – GlobeNewswire

Stallion Uranium Announces Exciting Progress in Technology Data Acquisition Agreement

July 11, 2025
Angel Reese’s rebounding greatness summed up in one wild statistic – Yahoo Sports

Angel Reese’s rebounding greatness summed up in one wild statistic – Yahoo Sports

July 11, 2025
International call for freedom for environmentalist Onur Yılmaz – ANF English

International call for freedom for environmentalist Onur Yılmaz – ANF English

July 11, 2025
This week in science: a comet, plastic-eating bugs, and how altitude changes smell – KUOW

This week in science: a comet, plastic-eating bugs, and how altitude changes smell – KUOW

July 11, 2025
Science Museum of Minnesota cutting more than 40 full-time employees – CBS News

Science Museum of Minnesota to Cut More Than 40 Full-Time Jobs

July 11, 2025
Doctors say we’ve been misled about weight and health – ScienceDaily

Doctors Reveal the Truth About Weight and Health That You’ve Been Misled About

July 11, 2025
Sierra Club breaks record for world’s largest display of origami fish to protest Line 5 – News From The States

Sierra Club Creates Giant Origami Fish to Break World Record and Protest Line 5

July 11, 2025
Senate Democrat: Trump economy full of ‘uncertainty,’ ‘chaos’ – The Hill

Senate Democrat Warns of ‘Uncertainty’ and ‘Chaos’ in Trump Economy

July 11, 2025
Arts and entertainment events happening July 10th-13th across the Mid-Ohio Valley – WTAP

Unmissable Arts and Entertainment Events Happening July 10th-13th in the Mid-Ohio Valley

July 11, 2025
World’s Premier Cancer Institute Faces Crippling Cuts and Chaos – KFF Health News

World’s Leading Cancer Institute Grapples with Devastating Cuts and Turmoil

July 11, 2025

Categories

Archives

July 2025
MTWTFSS
 123456
78910111213
14151617181920
21222324252627
28293031 
« Jun    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (715)
  • Economy (738)
  • Entertainment (21,626)
  • General (15,827)
  • Health (9,775)
  • Lifestyle (745)
  • News (22,149)
  • People (740)
  • Politics (748)
  • Science (15,956)
  • Sports (21,237)
  • Technology (15,724)
  • World (721)

Recent News

Stallion Uranium Provides Update on Technology Data Acquisition Agreement – GlobeNewswire

Stallion Uranium Announces Exciting Progress in Technology Data Acquisition Agreement

July 11, 2025
Angel Reese’s rebounding greatness summed up in one wild statistic – Yahoo Sports

Angel Reese’s rebounding greatness summed up in one wild statistic – Yahoo Sports

July 11, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version