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1. Dual-mode detection of fluorine-containing pesticides (bifenthrin, flufenoxuron, diflubenzuron) via ratiometric fluorescence and the Tyndall Effect of fluorescent organic nanoparticles

Author:
Yujiao Wang; Xiaoyan Cui; Runhua Lu; Haixiang Gao; Huafen Li; Wenfeng Zhou
Source:
Food chemistry 2023 v.399 pp. 134008
ISSN:
0308-8146
Subject:
portable equipment,   etc   ; bifenthrin; chemical species; colorimetry; diflubenzuron; flufenoxuron; fluorescence; food chemistry; nanoparticles;     Show all 9 Subjects
Abstract:
... The Tyndall Effect assay (TEA) has been applied into colorimetric metal ion detection since 2019. However, the TEA-based sensor for pesticide detection has never been reported till now. Herein, a facile fluorescent organic nanoparticle (FON)-based sensor is firstly developed for fluorine-containing pesticide detection through ratiometric fluorescence assay (FLA) and TEA. For FLA, the intensity of ...
DOI:
10.1016/j.foodchem.2022.134008

2. Optical and portable equipment for characterizing soil roughness

Author:
Bianca Batista Barreto; Elisângela Ribeiro; Fernando Pujaico Rivera; Roberto Alves Braga Junior; Bernardo Cândido; Blair McKenzie
Source:
Smart agricultural technology 2023 v.3 pp. 100062
ISSN:
2772-3755
Subject:
portable equipment,   etc   ; barns; composts; lighting; optical equipment; roughness; soil; surface roughness; vision;     Show all 9 Subjects
Abstract:
... Knowledge of surface roughness with the consequent presence of crust in the soil is important information for the rational management of environmental resources. Soil surface roughness can be determined by contact and noncontact methods. Contact methods have lower values and precision than noncontact methods. Therefore, the objective of this study was to develop low-cost, portable and robust optic ...
DOI:
10.1016/j.atech.2022.100062

3. One-class model with two decision thresholds for the rapid detection of cashew nuts adulteration by other nuts

Author:
Glòria Rovira; Carolina Sheng Whei Miaw; Mário Lúcio Campos Martins; Marcelo Martins Sena; Scheilla Vitorino Carvalho de Souza; M. Pilar Callao; Itziar Ruisánchez
Source:
Talanta 2023 v.253 pp. 123916
ISSN:
0039-9140
Subject:
portable equipment,   etc   ; adulterants; adulterated products; cashew nuts; macadamia nuts; models; peanuts; pecans; probability; rapid methods;     Show all 10 Subjects
Abstract:
... A green screening method to determine cashew nut adulteration with Brazilian nut, pecan nut, macadamia nut and peanut was proposed. The method was based on the development of a one-class soft independent modelling of class analogy (SIMCA) model for non-adulterated cashew nuts using near-infrared (NIR) spectra obtained with portable equipment. Once the model is established, the assignment of unknow ...
DOI:
10.1016/j.talanta.2022.123916

4. Pesticide analytical screening system (PASS): A novel electrochemical system for multiplex screening of glyphosate and chlorpyrifos in high-fat and low-fat food matrices

Author:
Durgasha C. Poudyal; Vikram Narayanan Dhamu; Manish Samson; Sriram Muthukumar; Shalini Prasad
Source:
Food chemistry 2023 v.400 pp. 134075
ISSN:
0308-8146
Subject:
portable equipment,   etc   ; antibodies; chlorpyrifos; detection limit; dielectric spectroscopy; electrochemistry; food chemistry; food matrix; glyphosate; high fat foods; immunoassays; low fat foods; pesticide residues;     Show all 13 Subjects
Abstract:
... On-field detection of pesticide residue in complex-food matrices is a challenge when it comes to analytical detection involving multistep extraction and purification. In this study, we test the feasibility of an electrochemical portable device for detection of spiked pesticides Glyphosate (Glyp) and Chlorpyrifos (Chlp) in low-fat and high-fat food matrix. The immunoassay based two-plex sensing pla ...
DOI:
10.1016/j.foodchem.2022.134075

5. A stack-up electrochemical device based on metal-organic framework modified carbon paper for ultra-trace lead and cadmium ions detection

Author:
Yue-Hong Pang; Qiu-Yu Yang; Rui Jiang; Yi-Ying Wang; Xiao-Fang Shen
Source:
Food chemistry 2023 v.398 pp. 133822
ISSN:
0308-8146
Subject:
portable equipment,   etc   ; cadmium; carbon; carbon electrodes; coordination polymers; detection limit; electrochemistry; food chemistry; food safety; heavy metals; juices; lead; liver; nanogold; paper; tea; voltammetry;     Show all 17 Subjects
Abstract:
... A portable device is conducive to the on-site detection of heavy metal ions at trace level in food and the prevention of related food safety issues. In this work, an electrochemical device stacked up with flat electrodes was developed for the detection of Pb²⁺ and Cd²⁺. The top layer of the device is a carbon paper as working electrode, which is modified with amino functionalized cobalt-based meta ...
DOI:
10.1016/j.foodchem.2022.133822

6. Effect of time-activity patterns and microenvironments on the personal exposure of undergraduate students to black carbon

Author:
Burcu Uzun; Burcu Onat; Coşkun Ayvaz; Özcan Akın; Ülkü Alver Şahin
Source:
Environmental monitoring and assessment 2022 v.194 no.9 pp. 593
ISSN:
0167-6369
Subject:
portable equipment,   etc   ; administered dose; carbon; transportation;     Show all 4 Subjects
Abstract:
... In this study, the personal exposure to and potential dose of black carbon (BC) of undergraduate students (22–27 years old, nonsmokers) were determined. BC was continuously measured by a portable device (microAeth® AE51) for four consecutive days in Istanbul between April and May 2019. The time-activity diaries filled out by each volunteer were assessed to define the activities and microenvironmen ...
DOI:
10.1007/s10661-022-10223-4

7. Particulate matter exposure at urban traffic intersection during haze episodes: A case study in Changsha

Author:
Wei Pan; Xiaolu Chen; Xiaojun Duan; Yu Xue; Lisi Jia
Source:
Science of the total environment 2022 v.838 pp. 156006
ISSN:
0048-9697
Subject:
portable equipment,   etc   ; case studies; environment; particulates; pollution; traffic;     Show all 6 Subjects
Abstract:
... Urban intersection has been identified as a major contributor to the total personal exposure and short-term high exposure of particulate matter (PM) in modern cities. The main aim of this study was to get a better understanding of the determinants of traffic-related PM temporal variations and personal exposure to PMs at a viaduct-covered intersection controlled by traffic signals during the winter ...
DOI:
10.1016/j.scitotenv.2022.156006

8. Smart bioelectronic pacifier for real-time continuous monitoring of salivary electrolytes

Author:
Hyo-Ryoung Lim; Soon Min Lee; Sehyun Park; Chanyeong Choi; Hojoong Kim; Jihoon Kim; Musa Mahmood; Yongkuk Lee; Jong-Hoon Kim; Woon-Hong Yeo
Source:
Biosensors & bioelectronics 2022 v.210 pp. 114329
ISSN:
0956-5663
Subject:
portable equipment,   etc   ; biosensors; blood; electrolytes; potassium; saliva; sodium;     Show all 7 Subjects
Abstract:
... Monitoring electrolytes is critical for newborns and babies in the intensive care unit. However, the gold standard methods use a blood draw, which is painful and only offers discrete measures. Although salivary-based detection offers promise as an alternative, existing devices are ineffective for real-time, continuous monitoring of electrolytes due to their rigidity, bulky form factors, and lack o ...
DOI:
10.1016/j.bios.2022.114329

9. Sperm Gone Smart: A Portable Device (iSperm®) to Assess Semen Concentration and Motility in Dogs

Author:
Guillaume Domain; Penelope Banchi; Hiba Ali Hassan; Anouk Eilers; Joke Lannoo; Eline Wydooghe; Wojciech Niżański; Ann Van Soom
Source:
Animals 2022 v.12 no.5 pp. -
ISSN:
2076-2615
Subject:
portable equipment,   etc   ; automation; computer software; dogs; semen; spermatozoa;     Show all 6 Subjects
Abstract:
... The iSperm® is a portable device for semen analysis. This study aimed to investigate its correlation with a conventional computer-assisted sperm analyzer (ISAS®v1) for the assessment of semen concentration and kinematic parameters in dogs (n = 224). The intra-assay variability of both devices and their ability to estimate semen concentration at a fixed value of 40 × 10⁶/mL were also investigated. ...
DOI:
10.3390/ani12050652

10. Apple LiDAR Sensor for 3D Surveying: Tests and Results in the Cultural Heritage Domain

Author:
Lorenzo Teppati Losè; Alessandra Spreafico; Filiberto Chiabrando; Fabio Giulio Tonolo
Source:
Remote Sensing 2022 v.14 no.17 pp. -
ISSN:
2072-4292
Subject:
portable equipment,   etc   ; cultural heritage; data collection; lidar; scanners;     Show all 5 Subjects
Abstract:
... The launch of the new iPad Pro by Apple in March 2020 generated high interest and expectations for different reasons; nevertheless, one of the new features that developers and users were interested in testing was the LiDAR sensor integrated into this device (and, later on, in the iPhone 12 and 13 Pro series). The implications of using this technology are mainly related to augmented and mixed reali ...
DOI:
10.3390/rs14174157

11. Shaping families’ local biodiversity awareness while using a place-based mobile device during a nature walk

Author:
Lucy R. McClain
Source:
Applied environmental education and communication 2022 v.21 no.3 pp. 273-287
ISSN:
1533-0389
Subject:
portable equipment,   etc   ; biodiversity; environmental education; insects; plant identification; trees;     Show all 6 Subjects
Abstract:
... This research study focuses on 31 families (n = 105 individuals) and their experience using a place-based e-Trailguide to observe and learn about the local biodiversity during a hike. Open-ended interviews were conducted with each family after their hike with the e-Trailguide to assess shifts in biodiversity awareness. 190 interview responses were thematically coded into 17 different categories. R ...
DOI:
10.1080/1533015X.2022.2064007

12. Efficient image-based indoor localization with MEMS aid on the mobile device

Author:
Mingcong Shu; Guoliang Chen; Zhenghua Zhang
Source:
ISPRS journal of photogrammetry and remote sensing 2022 v.185 pp. 85-110
ISSN:
0924-2716
Subject:
portable equipment,   etc   ; data collection; infrastructure; mobile telephones; models; photogrammetry; uncertainty;     Show all 7 Subjects
Abstract:
... Recently, imaged-based localization has become a hotspot in indoor localization research due to its high accuracy and no additional infrastructure requirements. However, computational complexity and memory consumption are critical issues for terminal devices in natural large-scale indoor scenes. In this paper, we propose a system that takes advantage of built-in sensors, a microelectromechanical s ...
DOI:
10.1016/j.isprsjprs.2022.01.010

13. Neural mechanism mimetic selective electronic nose based on programmed M13 bacteriophage

Author:
Jong-Min Lee; Vasanthan Devaraj; Na-Na Jeong; Yujin Lee; Ye-Ji Kim; Taehyeong Kim; Seung Heon Yi; Won-Geun Kim; Eun Jung Choi; Hyun-Min Kim; Chulhun L. Chang; Chuanbin Mao; Jin-Woo Oh
Source:
Biosensors & bioelectronics 2022 v.196 pp. 113693
ISSN:
0956-5663
Subject:
portable equipment,   etc   ; bacteriophages; biomimetics; biosensors; brain; chemistry; electronic nose; memory;     Show all 8 Subjects
Abstract:
... The electronic nose is a reliable practical sensor device that mimics olfactory organs. Although numerous studies have demonstrated excellence in detecting various target substances with the help of ideal models, biomimetic approaches still suffer in practical realization because of the inability to mimic the signal processing performed by olfactory neural systems. Herein, we propose an electronic ...
DOI:
10.1016/j.bios.2021.113693

14. Vibrating Exercise Equipment in Middle-Age and Older Women with Chronic Low Back Pain and Effects on Bioelectrical Activity, Range of Motion and Pain Intensity: A Randomized, Single-Blinded Sham Intervention Study

Author:
Grzegorz Zurek; Martyna Kasper-Jędrzejewska; Iwona Dobrowolska; Agata Mroczek; Gerda Delaunay; Kuba Ptaszkowski; Tomasz Halski
Source:
Biology 2022 v.11 no.2 pp. -
ISSN:
2079-7737
Subject:
portable equipment,   etc   ; clinical trials; electromyography; exercise; exercise equipment; muscles; pain;     Show all 7 Subjects
Abstract:
... Background: Chronic low back pain (CLBP) is one of the most common musculoskeletal disorders. Physical activity (PA) is often recommended as part of the management of CLBP, but to date, no one particular exercise has been shown to be superior. Vibrating exercise equipment (VEE) is widely available and used despite little scientific evidence to support its effectiveness in the prevention and treatm ...
DOI:
10.3390/biology11020268

15. Powdery Food Identification Using NIR Spectroscopy and Extensible Deep Learning Model

Author:
Lei Zhou; Xuefei Wang; Chu Zhang; Nan Zhao; Mohamed Farag Taha; Yong He; Zhengjun Qiu
Source:
Food and bioprocess technology 2022 v.15 no.10 pp. 2354-2362
ISSN:
1935-5130
Subject:
portable equipment,   etc   ; bioprocessing; libraries; models; near-infrared spectroscopy; powdered foods;     Show all 6 Subjects
Abstract:
... Spectroscopy coupled with deep learning is widely studied for powdered food materials authentication, such as quality ranking and powder identification. However, the models need retraining when new categories are expected to be covered. We proposed a portable device for powder identification using metric learning. Six powders were used to train a deep learning feature extractor and establish a ref ...
DOI:
10.1007/s11947-022-02866-5

16. Development of a novel microfluidic biosensing platform integrating micropillar array electrode and acoustic microstreaming techniques

Author:
Chaozhan Chen; Bin Ran; Bo Liu; Xiaoxuan Liu; Ya Liu; Minbo Lan; Richard Manasseh; Yonggang Zhu
Source:
Biosensors & bioelectronics 2022 pp. 114703
ISSN:
0956-5663
Subject:
portable equipment,   etc   ; acoustics; biomarkers; biosensors; electrochemistry; electrodes; hydrogen peroxide; potassium; sarcosines;     Show all 9 Subjects
Abstract:
... Quantifying biomarkers at the early stage of the disease is challenging due to the low abundance of biomarkers in the sample and the lack of sensitive techniques. This article reports the development of a novel microfluidic electrochemical biosensing platform to address this challenge. The electrochemical sensing is achieved by utilizing a micropillar array electrode (μAE) coated with 3D bimetalli ...
DOI:
10.1016/j.bios.2022.114703

17. Real-Time On-Site Diagnosis of Quarantine Pathogens in Plant Tissues by Nanopore-Based Sequencing

Author:
Luca Marcolungo; Alessandro Passera; Simone Maestri; Elena Segala; Massimiliano Alfano; Francesca Gaffuri; Giovanni Marturano; Paola Casati; Piero Attilio Bianco; Massimo Delledonne
Source:
Pathogens 2022 v.11 no.2 pp. -
ISSN:
2076-0817
Subject:
portable equipment,   etc   ; Xylella fastidiosa; case studies; microbial detection; nanopores; pathovars; quarantine;     Show all 7 Subjects
Abstract:
... Rapid and sensitive assays for the identification of plant pathogens are necessary for the effective management of crop diseases. The main limitation of current diagnostic testing is the inability to combine broad and sensitive pathogen detection with the identification of key strains, pathovars, and subspecies. Such discrimination is necessary for quarantine pathogens, whose management is strictl ...
DOI:
10.3390/pathogens11020199

18. Nanomaterials for designing biosensors to detect fungi and bacteria related to food safety of agricultural products

Author:
Rosa Isela Ventura-Aguilar; Silvia Bautista-Baños; Salvador Mendoza-Acevedo; Elsa Bosquez-Molina
Source:
Postharvest biology and technology 2023 v.195 pp. 112116
ISSN:
0925-5214
Subject:
portable equipment,   etc   ; biosensors; electrical conductivity; energy; food safety; nanometals; nanoparticles; oligonucleotides; toxicity;     Show all 9 Subjects
Abstract:
... The agricultural and food sectors are currently focused on developing and implementing control technologies but have not been able to detect postharvest fungi and food-borne bacteria in a fast and reliable manner; thus, necessary measures must be taken as soon as possible. To facilitate this process, a device such as a biosensor could be a potential alternative for the timely detection of various ...
DOI:
10.1016/j.postharvbio.2022.112116

19. Selective monitoring of natural gas sulphur-based odorant mixture of t-butyl mercaptan and methyl ethyl sulphide using an array of microfluidic gas sensors

Author:
Mahan Ghazi; Nishat Tasnim; Mina Hoorfar
Source:
Journal of hazardous materials 2022 v.438 pp. 129548
ISSN:
0304-3894
Subject:
portable equipment,   etc   ; hydrogen sulfide; methane; models; natural gas; odor compounds; regression analysis;     Show all 7 Subjects
Abstract:
... A natural gas (NG) odorization system requires continuous monitoring as well as an optimal injection to satisfy the odorization guidelines, minimize over-odorization, and prevent hazardous gas leaks. NG consists of hydrocarbons such as methane, odorants such as tert-butyl mercaptan, and other sulphur-based VOCs such as hydrogen sulphide; therefore, selectivity is paramount for the reliable and acc ...
DOI:
10.1016/j.jhazmat.2022.129548

20. Design and fabrication of a portable instrument based on elastic fiber/nano‐polypyrrole for evaluating of tensile properties of food samples

Author:
Omid Mahmoodpour; Mohsen Esmaiili; Sajad Pirsa
Source:
Journal of food process engineering 2022 v.45 no.2 pp. e13946
ISSN:
0145-8876
Subject:
portable equipment,   etc   ; biodegradability; detection limit; electrical resistance; polyesters; pyrroles; tensile strength; texture;     Show all 8 Subjects
Abstract:
... In this study, polypyrrole nanoparticles were synthesized by chemical methods on polyester elastic substrates. SEM images represent the uniform distribution of polypyrrole nanoparticles. Using polypyrrole modified fiber, the analysis system was designed and used as a portable texture analyzer to measure the mechanical properties of food samples. In the designed system, there was a linear and signi ...
DOI:
10.1111/jfpe.13946