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Artykuły w czasopismach na temat „Chemical sensors, analytical instrumentation, optics, nanotechnology”

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Data publikacji: 6 września 2023

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1

Dadkhah, Mehran, and Jean-Marc Tulliani. "Green Synthesis of Metal Oxides Semiconductors for Gas Sensing Applications." Sensors 22, no. 13 (2022): 4669. http://dx.doi.org/10.3390/s22134669.

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During recent decades, metal oxide semiconductors (MOS) have sparked more attention in various applications and industries due to their excellent sensing characteristics, thermal stability, abundance, and ease of synthesis. They are reliable and accurate for measuring and monitoring environmentally important toxic gases, such as NO2, NO, N2O, H2S, CO, NH3, CH4, SO2, and CO2. Compared to other sensing technologies, MOS sensors are lightweight, relatively inexpensive, robust, and have high material sensitivity with fast response times. Green nanotechnology is a developing branch of nanotechnolog
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Osmólska, Emilia, Monika Stoma, and Agnieszka Starek-Wójcicka. "Application of Biosensors, Sensors, and Tags in Intelligent Packaging Used for Food Products—A Review." Sensors 22, no. 24 (2022): 9956. http://dx.doi.org/10.3390/s22249956.

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The current development of science and the contemporary market, combined with high demands from consumers, force manufacturers and scientists to implement new solutions in various industries, including the packaging industry. The emergence of new solutions in the field of intelligent packaging has provided an opportunity to extend the quality of food products and ensures that food will not cause any harm to the consumer’s health. Due to physical, chemical, or biological factors, the state of food may be subject to degradation. The degradation may occur because the packaging, i.e., the protecti
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Zhang, Yanan, Ning Cai, and Vincent Chan. "Recent Advances in Silicon Quantum Dot-Based Fluorescent Biosensors." Biosensors 13, no. 3 (2023): 311. http://dx.doi.org/10.3390/bios13030311.

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With the development of nanotechnology, fluorescent silicon nanomaterials have been synthesized and applied in various areas. Among them, silicon quantum dots (SiQDs) are a new class of zero-dimensional nanomaterials with outstanding optical properties, benign biocompatibility, and ultra-small size. In recent years, SiQDs have been gradually utilized for constructing high-performance fluorescent sensors for chemical or biological analytes. Herein, we focus on reviewing recent advances in SiQD-based fluorescent biosensors from a broad perspective and discussing possible future trends. First, th
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Tovar-Lopez, Francisco J. "Recent Progress in Micro- and Nanotechnology-Enabled Sensors for Biomedical and Environmental Challenges." Sensors 23, no. 12 (2023): 5406. http://dx.doi.org/10.3390/s23125406.

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Micro- and nanotechnology-enabled sensors have made remarkable advancements in the fields of biomedicine and the environment, enabling the sensitive and selective detection and quantification of diverse analytes. In biomedicine, these sensors have facilitated disease diagnosis, drug discovery, and point-of-care devices. In environmental monitoring, they have played a crucial role in assessing air, water, and soil quality, as well as ensured food safety. Despite notable progress, numerous challenges persist. This review article addresses recent developments in micro- and nanotechnology-enabled
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5

Pfützner, Andreas, Barbora Tencer, Boris Stamm, et al. "Miniaturization of an Osmotic Pressure-Based Glucose Sensor for Continuous Intraperitoneal and Subcutaneous Glucose Monitoring by Means of Nanotechnology." Sensors 23, no. 9 (2023): 4541. http://dx.doi.org/10.3390/s23094541.

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The Sencell sensor uses glucose-induced changes in an osmotic pressure chamber for continuous glucose measurement. A final device shall have the size of a grain of rice. The size limiting factor is the piezo-resistive pressure transducers inside the core sensor technology (resulting chamber volume: 70 µL. To achieve the necessary miniaturization, these pressure transducers were replaced by small (4000 × 400 × 150 nm³) nano-granular tunneling resistive (NTR) pressure sensors (chamber volume: 750 nL). For benchmark testing, we filled the miniaturized chamber with bovine serum albumin (BSA, 1 mM)
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6

Pizzoferrato, Roberto. "Optical Chemical Sensors: Design and Applications." Sensors 23, no. 11 (2023): 5284. http://dx.doi.org/10.3390/s23115284.

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Witkiewicz, Zygfryd, Krzysztof Jasek, and Michał Grabka. "Semiconductor Gas Sensors for Detecting Chemical Warfare Agents and Their Simulants." Sensors 23, no. 6 (2023): 3272. http://dx.doi.org/10.3390/s23063272.

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On-site detection of chemical warfare agents (CWAs) can be performed by various analytical techniques. Devices using well-established techniques such as ion mobility spectrometry, flame photometry, infrared and Raman spectroscopy or mass spectrometry (usually combined with gas chromatography) are quite complex and expensive to purchase and operate. For this reason, other solutions based on analytical techniques well suited to portable devices are still being sought. Analyzers based on simple semiconductor sensors may be a potential alternative to the currently used CWA field detectors. In sens
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8

Wu, Yu, Jing Feng, Guang Hu, En Zhang, and Huan-Huan Yu. "Colorimetric Sensors for Chemical and Biological Sensing Applications." Sensors 23, no. 5 (2023): 2749. http://dx.doi.org/10.3390/s23052749.

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Colorimetric sensors have been widely used to detect numerous analytes due to their cost-effectiveness, high sensitivity and specificity, and clear visibility, even with the naked eye. In recent years, the emergence of advanced nanomaterials has greatly improved the development of colorimetric sensors. This review focuses on the recent (from the years 2015 to 2022) advances in the design, fabrication, and applications of colorimetric sensors. First, the classification and sensing mechanisms of colorimetric sensors are briefly described, and the design of colorimetric sensors based on several t
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9

Wu, Chunsheng, Ping Zhu, Yage Liu, Liping Du, and Ping Wang. "Field-Effect Sensors Using Biomaterials for Chemical Sensing." Sensors 21, no. 23 (2021): 7874. http://dx.doi.org/10.3390/s21237874.

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After millions of years of evolution, biological chemical sensing systems (i.e., olfactory and taste systems) have become very powerful natural systems which show extreme high performances in detecting and discriminating various chemical substances. Creating field-effect sensors using biomaterials that are able to detect specific target chemical substances with high sensitivity would have broad applications in many areas, ranging from biomedicine and environments to the food industry, but this has proved extremely challenging. Over decades of intense research, field-effect sensors using biomat
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10

Lee, Dong Hyun, and Hocheon Yoo. "Recent Advances in Photo−Activated Chemical Sensors." Sensors 22, no. 23 (2022): 9228. http://dx.doi.org/10.3390/s22239228.

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Gas detectors have attracted considerable attention for monitoring harmful gases and air pollution because of industry development and the ongoing interest in human health. On the other hand, conventional high−temperature gas detectors are unsuitable for safely detecting harmful gases at high activation temperatures. Photo−activated gas detectors improve gas sensing performance at room temperature and enable low−power operation. This review presents a timely overview of photo−activated gas detectors that use illuminated light instead of thermal energy. Illuminated light assists in gas detectio
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11

Lee, Seunghun, Hyerin Song, Heesang Ahn, Seungchul Kim, Jong-ryul Choi, and Kyujung Kim. "Fiber-Optic Localized Surface Plasmon Resonance Sensors Based on Nanomaterials." Sensors 21, no. 3 (2021): 819. http://dx.doi.org/10.3390/s21030819.

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Applying fiber-optics on surface plasmon resonance (SPR) sensors is aimed at practical usability over conventional SPR sensors. Recently, field localization techniques using nanostructures or nanoparticles have been investigated on optical fibers for further sensitivity enhancement and significant target selectivity. In this review article, we explored varied recent research approaches of fiber-optics based localized surface plasmon resonance (LSPR) sensors. The article contains interesting experimental results using fiber-optic LSPR sensors for three different application categories: (1) chem
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12

Banerjee, Aishwaryadev, Swagata Maity, and Carlos H. Mastrangelo. "Nanostructures for Biosensing, with a Brief Overview on Cancer Detection, IoT, and the Role of Machine Learning in Smart Biosensors." Sensors 21, no. 4 (2021): 1253. http://dx.doi.org/10.3390/s21041253.

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Biosensors are essential tools which have been traditionally used to monitor environmental pollution and detect the presence of toxic elements and biohazardous bacteria or virus in organic matter and biomolecules for clinical diagnostics. In the last couple of decades, the scientific community has witnessed their widespread application in the fields of military, health care, industrial process control, environmental monitoring, food-quality control, and microbiology. Biosensor technology has greatly evolved from in vitro studies based on the biosensing ability of organic beings to the highly s
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13

Yao, Xuesong, Yalei Zhang, Wanlin Jin, Youfan Hu, and Yue Cui. "Carbon Nanotube Field-Effect Transistor-Based Chemical and Biological Sensors." Sensors 21, no. 3 (2021): 995. http://dx.doi.org/10.3390/s21030995.

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Chemical and biological sensors have attracted great interest due to their importance in applications of healthcare, food quality monitoring, environmental monitoring, etc. Carbon nanotube (CNT)-based field-effect transistors (FETs) are novel sensing device configurations and are very promising for their potential to drive many technological advancements in this field due to the extraordinary electrical properties of CNTs. This review focuses on the implementation of CNT-based FETs (CNTFETs) in chemical and biological sensors. It begins with the introduction of properties, and surface function
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14

Caroleo, Fabrizio, Gabriele Magna, Mario Luigi Naitana, et al. "Advances in Optical Sensors for Persistent Organic Pollutant Environmental Monitoring." Sensors 22, no. 7 (2022): 2649. http://dx.doi.org/10.3390/s22072649.

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Optical chemical sensors are widely applied in many fields of modern analytical practice, due to their simplicity in preparation and signal acquisition, low costs, and fast response time. Moreover, the construction of most modern optical sensors requires neither wire connections with the detector nor sophisticated and energy-consuming hardware, enabling wireless sensor development for a fast, in-field and online analysis. In this review, the last five years of progress (from 2017 to 2021) in the field of optical chemical sensors development for persistent organic pollutants (POPs) is provided.
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15

Grabka, Michał, Zygfryd Witkiewicz, Krzysztof Jasek, and Krzysztof Piwowarski. "Acoustic Wave Sensors for Detection of Blister Chemical Warfare Agents and Their Simulants." Sensors 22, no. 15 (2022): 5607. http://dx.doi.org/10.3390/s22155607.

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On-site detection and initial identification of chemical warfare agents (CWAs) remain difficult despite the many available devices designed for this type of analysis. Devices using well-established analytical techniques such as ion mobility spectrometry, gas chromatography coupled with mass spectrometry, or flame photometry, in addition to unquestionable advantages, also have some limitations (complexity, high unit cost, lack of selectivity). One of the emerging techniques of CWA detection is based on acoustic wave sensors, among which surface acoustic wave (SAW) devices and quartz crystal mic
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16

Di Bartolomeo, Antonio. "Advanced Field-Effect Sensors." Sensors 23, no. 9 (2023): 4554. http://dx.doi.org/10.3390/s23094554.

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Sensors based on the field-effect principle have been used for more than fifty years in a variety of applications ranging from bio-chemical sensing to radiation detection or environmental parameter monitoring [...]
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17

Roriz, Paulo, Susana Silva, Orlando Frazão, and Susana Novais. "Optical Fiber Temperature Sensors and Their Biomedical Applications." Sensors 20, no. 7 (2020): 2113. http://dx.doi.org/10.3390/s20072113.

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The use of sensors in the real world is on the rise, providing information on medical diagnostics for healthcare and improving quality of life. Optical fiber sensors, as a result of their unique properties (small dimensions, capability of multiplexing, chemical inertness, and immunity to electromagnetic fields) have found wide applications, ranging from structural health monitoring to biomedical and point-of-care instrumentation. Furthermore, these sensors usually have good linearity, rapid response for real-time monitoring, and high sensitivity to external perturbations. Optical fiber sensors
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18

Yang, Mengjie, Yong Zhou, Ke Wang, et al. "Review of Chemical Sensors for Hydrogen Sulfide Detection in Organisms and Living Cells." Sensors 23, no. 6 (2023): 3316. http://dx.doi.org/10.3390/s23063316.

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As the third gasotransmitter, hydrogen sulfide (H2S) is involved in a variety of physiological and pathological processes wherein abnormal levels of H2S indicate various diseases. Therefore, an efficient and reliable monitoring of H2S concentration in organisms and living cells is of great significance. Of diverse detection technologies, electrochemical sensors possess the unique advantages of miniaturization, fast detection, and high sensitivity, while the fluorescent and colorimetric ones exhibit exclusive visualization. All these chemical sensors are expected to be leveraged for H2S detecti
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19

Xia, Zhiyu, Zhengyi Xu, Dan Li, and Jianming Wei. "A Novel Method for Source Tracking of Chemical Gas Leakage: Outlier Mutation Optimization Algorithm." Sensors 22, no. 1 (2021): 71. http://dx.doi.org/10.3390/s22010071.

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Chemical industrial parks, which act as critical infrastructures in many cities, need to be responsive to chemical gas leakage accidents. Once a chemical gas leakage accident occurs, risks of poisoning, fire, and explosion will follow. In order to meet the primary emergency response demands in chemical gas leakage accidents, source tracking technology of chemical gas leakage has been proposed and evolved. This paper proposes a novel method, Outlier Mutation Optimization (OMO) algorithm, aimed to quickly and accurately track the source of chemical gas leakage. The OMO algorithm introduces a ran
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20

Wilson, Denise. "Chemical Sensors for Farm-to-Table Monitoring of Fruit Quality." Sensors 21, no. 5 (2021): 1634. http://dx.doi.org/10.3390/s21051634.

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Farm-to-table operations produce, transport, and deliver produce to consumers in very different ways than conventional, corporate-scale agriculture operations. As a result, the time it takes to get a freshly picked fruit to the consumer is relatively short and the expectations of the consumer for freshness and quality are high. Since many of these operations involve small farms and small businesses, resources to deploy sensors and instruments for monitoring quality are scarce compared to larger operations. Within stringent power, cost, and size constraints, this article analyzes chemical senso
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21

Cai, Jintao, Yulei Liu, and Xuewen Shu. "Long-Period Fiber Grating Sensors for Chemical and Biomedical Applications." Sensors 23, no. 1 (2023): 542. http://dx.doi.org/10.3390/s23010542.

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Optical fiber biosensors (OFBS) are being increasingly proposed due to their intrinsic advantages over conventional sensors, including their compactness, potential remote control and immunity to electromagnetic interference. This review systematically introduces the advances of OFBS based on long-period fiber gratings (LPFGs) for chemical and biomedical applications from the perspective of design and functionalization. The sensitivity of such a sensor can be enhanced by designing the device working at or near the dispersion turning point, or working around the mode transition, or their combina
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22

Dotoli, Matteo, Riccardo Rocca, Mattia Giuliano, et al. "A Review of Mechanical and Chemical Sensors for Automotive Li-Ion Battery Systems." Sensors 22, no. 5 (2022): 1763. http://dx.doi.org/10.3390/s22051763.

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The electrification of passenger cars is one of the most effective approaches to reduce noxious emissions in urban areas and, if the electricity is produced using renewable sources, to mitigate the global warming. This profound change of paradigm in the transport sector requires the use of Li-ion battery packages as energy storage systems to substitute conventional fossil fuels. An automotive battery package is a complex system that has to respect several constraints: high energy and power densities, long calendar and cycle lives, electrical and thermal safety, crash-worthiness, and recyclabil
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23

Yaqoob, Usman, and Mohammad I. Younis. "Chemical Gas Sensors: Recent Developments, Challenges, and the Potential of Machine Learning—A Review." Sensors 21, no. 8 (2021): 2877. http://dx.doi.org/10.3390/s21082877.

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Nowadays, there is increasing interest in fast, accurate, and highly sensitive smart gas sensors with excellent selectivity boosted by the high demand for environmental safety and healthcare applications. Significant research has been conducted to develop sensors based on novel highly sensitive and selective materials. Computational and experimental studies have been explored in order to identify the key factors in providing the maximum active location for gas molecule adsorption including bandgap tuning through nanostructures, metal/metal oxide catalytic reactions, and nano junction formation
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24

Gardner, Ethan L. W., Julian W. Gardner, and Florin Udrea. "Micromachined Thermal Gas Sensors—A Review." Sensors 23, no. 2 (2023): 681. http://dx.doi.org/10.3390/s23020681.

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In recent years, there has been a growing desire to monitor and control harmful substances arising from industrial processes that impact upon our health and quality of life. This has led to a large market demand for gas sensors, which are commonly based on sensors that rely upon a chemical reaction with the target analyte. In contrast, thermal conductivity detectors are physical sensors that detect gases through a change in their thermal conductivity. Thermal conductivity gas sensors offer several advantages over their chemical (reactive) counterparts that include higher reproducibility, bette
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25

Zhang, Huaizu, Chengbin Xia, Guangfu Feng, and Jun Fang. "Hospitals and Laboratories on Paper-Based Sensors: A Mini Review." Sensors 21, no. 18 (2021): 5998. http://dx.doi.org/10.3390/s21185998.

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With characters of low cost, portability, easy disposal, and high accuracy, as well as bulky reduced laboratory equipment, paper-based sensors are getting increasing attention for reliable indoor/outdoor onsite detection with nonexpert operation. They have become powerful analysis tools in trace detection with ultra-low detection limits and extremely high accuracy, resulting in their great popularity in medical detection, environmental inspection, and other applications. Herein, we summarize and generalize the recently reported paper-based sensors based on their application for mechanics, biom
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26

Rabus, David, Fanny Lotthammer, Joscelyn Degret, et al. "Degradation of Sub-Micrometer Sensitive Polymer Layers of Acoustic Sensors Exposed to Chlorpyrifos Water-Solution." Sensors 22, no. 3 (2022): 1203. http://dx.doi.org/10.3390/s22031203.

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The detection of organophosphates, a wide class of pesticides, in water-solution has a huge impact in environmental monitoring. Acoustic transducers are used to design passive wireless sensors for the direct detection of pesticides in water-solution by using tailored polymers as sensitive layers. We demonstrate by combining analytical chemistry tools that organophosphate molecules strongly alter polymer layers widely used in acoustic sensors in the presence of water. This chemical degradation can limit the use of these polymers in detection of organophosphates in water-solution.
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27

Choi, Seung-Ho, Joon-Seok Lee, Won-Jun Choi, Jae-Woo Seo, and Seon-Jin Choi. "Nanomaterials for IoT Sensing Platforms and Point-of-Care Applications in South Korea." Sensors 22, no. 2 (2022): 610. http://dx.doi.org/10.3390/s22020610.

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Herein, state-of-the-art research advances in South Korea regarding the development of chemical sensing materials and fully integrated Internet of Things (IoT) sensing platforms were comprehensively reviewed for verifying the applicability of such sensing systems in point-of-care testing (POCT). Various organic/inorganic nanomaterials were synthesized and characterized to understand their fundamental chemical sensing mechanisms upon exposure to target analytes. Moreover, the applicability of nanomaterials integrated with IoT-based signal transducers for the real-time and on-site analysis of ch
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28

Blachowicz, Tomasz, Guido Ehrmann, and Andrea Ehrmann. "Textile-Based Sensors for Biosignal Detection and Monitoring." Sensors 21, no. 18 (2021): 6042. http://dx.doi.org/10.3390/s21186042.

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Biosignals often have to be detected in sports or for medical reasons. Typical biosignals are pulse and ECG (electrocardiogram), breathing, blood pressure, skin temperature, oxygen saturation, bioimpedance, etc. Typically, scientists attempt to measure these biosignals noninvasively, i.e., with electrodes or other sensors, detecting electric signals, measuring optical or chemical information. While short-time measurements or monitoring of patients in a hospital can be performed by systems based on common rigid electrodes, usually containing a large amount of wiring, long-term measurements on m
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29

Meunier, Dorian, Jérôme Schruyers, Rachel Gonzales Palla, et al. "Controlled-chemical etching of the cladding in optical fibers for the design of analytical sensors." Optical Fiber Technology 78 (July 2023): 103328. http://dx.doi.org/10.1016/j.yofte.2023.103328.

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Kanoun, Olfa, Tamara Lazarević-Pašti, Igor Pašti, et al. "A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring." Sensors 21, no. 12 (2021): 4131. http://dx.doi.org/10.3390/s21124131.

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Electrochemical sensors play a significant role in detecting chemical ions, molecules, and pathogens in water and other applications. These sensors are sensitive, portable, fast, inexpensive, and suitable for online and in-situ measurements compared to other methods. They can provide the detection for any compound that can undergo certain transformations within a potential window. It enables applications in multiple ion detection, mainly since these sensors are primarily non-specific. In this paper, we provide a survey of electrochemical sensors for the detection of water contaminants, i.e., p
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31

Tabassum, Shawana, SK Nayemuzzaman, Manish Kala, Akhilesh Kumar Mishra, and Satyendra Kumar Mishra. "Metasurfaces for Sensing Applications: Gas, Bio and Chemical." Sensors 22, no. 18 (2022): 6896. http://dx.doi.org/10.3390/s22186896.

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Performance of photonic devices critically depends upon their efficiency on controlling the flow of light therein. In the recent past, the implementation of plasmonics, two-dimensional (2D) materials and metamaterials for enhanced light-matter interaction (through concepts such as sub-wavelength light confinement and dynamic wavefront shape manipulation) led to diverse applications belonging to spectroscopy, imaging and optical sensing etc. While 2D materials such as graphene, MoS2 etc., are still being explored in optical sensing in last few years, the application of plasmonics and metamateri
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Kowalczyk, Adrian, Julia Zarychta, Monika Lejman, and Joanna Zawitkowska. "Electrochemical and Optical Sensors for the Detection of Chemical Carcinogens Causing Leukemia." Sensors 23, no. 7 (2023): 3369. http://dx.doi.org/10.3390/s23073369.

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The incidence and mortality due to neoplastic diseases have shown an increasing tendency over the years. Based on GLOBOCAN 2020 published by the International Agency for Research on Cancer (IARC), leukemias are the thirteenth most commonly diagnosed cancer in the world, with 78.6% of leukemia cases diagnosed in countries with a very high or high Human Development Index (HDI). Carcinogenesis is a complex process initiated by a mutation in DNA that may be caused by chemical carcinogens present in polluted environments and human diet. The IARC has identified 122 human carcinogens, e.g., benzene,
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Pozo, Francesc, Diego A. Tibaduiza, and Yolanda Vidal. "Sensors for Structural Health Monitoring and Condition Monitoring." Sensors 21, no. 5 (2021): 1558. http://dx.doi.org/10.3390/s21051558.

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Structural control and health monitoring as condition monitoring are some essential areas that allow for different system parameters to be designed, supervised, controlled, and evaluated during the system’s operation in different processes, such as those used in machinery, structures, and different physical variables in mechanical, chemical, electrical, aeronautical, civil, electronics, mechatronics, and agricultural engineering applications, among others [...]
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34

Dutta, Taposhree, Tanzila Noushin, Shawana Tabassum, and Satyendra K. Mishra. "Road Map of Semiconductor Metal-Oxide-Based Sensors: A Review." Sensors 23, no. 15 (2023): 6849. http://dx.doi.org/10.3390/s23156849.

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Identifying disease biomarkers and detecting hazardous, explosive, flammable, and polluting gases and chemicals with extremely sensitive and selective sensor devices remains a challenging and time-consuming research challenge. Due to their exceptional characteristics, semiconducting metal oxides (SMOxs) have received a lot of attention in terms of the development of various types of sensors in recent years. The key performance indicators of SMOx-based sensors are their sensitivity, selectivity, recovery time, and steady response over time. SMOx-based sensors are discussed in this review based
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Ferri, Giuseppe, Gianluca Barile, and Alfiero Leoni. "Editorial for the Special Issue on Electronics for Sensors II." Sensors 23, no. 3 (2023): 1640. http://dx.doi.org/10.3390/s23031640.

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Bokova, Maria, Steven Dumortier, Christophe Poupin, Renaud Cousin, Mohammad Kassem, and Eugene Bychkov. "Potentiometric Chemical Sensors Based on Metal Halide Doped Chalcogenide Glasses for Sodium Detection." Sensors 22, no. 24 (2022): 9986. http://dx.doi.org/10.3390/s22249986.

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Chalcogenide glasses are widely used as sensitive membranes in the chemical sensors for heavy metal ions detection. The lack of research work on sodium ion-selective electrodes (Na+-ISEs) based on chalcogenide glasses is due to the high hygroscopicity of alkali dopes chalcogenides. However, sodium halide doped Ga2S3-GeS2 glasses are more chemically stable in water and could be used as Na+-sensitive membranes for the ISEs. In this work we have studied the physico-chemical properties of mixed cation (AgI)x(NaI)30-x(Ga2S3)26(GeS2)44 chalcogenide glasses (where x = 0, 7.5, 15, 22.5 and 30 mol.% Ag
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Yao, Yucheng, Zhiyong Zhao, and Ming Tang. "Advances in Multicore Fiber Interferometric Sensors." Sensors 23, no. 7 (2023): 3436. http://dx.doi.org/10.3390/s23073436.

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In this paper, a review of multicore fiber interferometric sensors is given. Due to the specificity of fiber structure, i.e., multiple cores integrated into only one fiber cladding, multicore fiber (MCF) interferometric sensors exhibit many desirable characteristics compared with traditional fiber interferometric sensors based on single-core fibers, such as structural and functional diversity, high integration, space-division multiplexing capacity, etc. Thanks to the unique advantages, e.g., simple fabrication, compact size, and good robustness, MCF interferometric sensors have been developed
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38

Holler, Stephen, and Matthew Speck. "Spatial Multiplexing of Whispering Gallery Mode Sensors." Sensors 23, no. 13 (2023): 5925. http://dx.doi.org/10.3390/s23135925.

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Whispering gallery mode resonators have proven to be robust and sensitive platforms for the trace detection of chemical and/or biological analytes. Conventional approaches using serially addressed resonators face challenges in simultaneous multi-channel (i.e., multi-species) detection. We present an alternative monitoring scheme that allows for the spatial multiplexing of whispering gallery mode resonators with the simultaneous observation of the resonance spectra from each of them. By imaging arrays of microspheres and monitoring the glare spot intensities through image processing routines, r
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39

Truta, Florina, Ana-Maria Drăgan, Mihaela Tertis, et al. "Electrochemical Rapid Detection of Methamphetamine from Confiscated Samples Using a Graphene-Based Printed Platform." Sensors 23, no. 13 (2023): 6193. http://dx.doi.org/10.3390/s23136193.

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Methamphetamine (MAP) is a highly addictive and illegal stimulant drug that has a significant impact on the central nervous system. Its detection in biological and street samples is crucial for various organizations involved in forensic medicine, anti-drug efforts, and clinical diagnosis. In recent years, nanotechnology and nanomaterials have played a significant role in the development of analytical sensors for MAP detection. In this study, a fast, simple, and cost-effective electrochemical sensor is presented that is used for the sensitive detection of MAP in confiscated street samples with
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40

Tian, Bingwei, Wenrui Liu, Haozhou Mo, Wang Li, Yuting Wang, and Basanta Raj Adhikari. "Detecting the Unseen: Understanding the Mechanisms and Working Principles of Earthquake Sensors." Sensors 23, no. 11 (2023): 5335. http://dx.doi.org/10.3390/s23115335.

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The application of movement-detection sensors is crucial for understanding surface movement and tectonic activities. The development of modern sensors has been instrumental in earthquake monitoring, prediction, early warning, emergency commanding and communication, search and rescue, and life detection. There are numerous sensors currently being utilized in earthquake engineering and science. It is essential to review their mechanisms and working principles thoroughly. Hence, we have attempted to review the development and application of these sensors by classifying them based on the timeline
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41

He, Lawrence, Mark Eastburn, James Smirk, and Hong Zhao. "Smart Chemical Sensor and Biosensor Networks for Healthcare 4.0." Sensors 23, no. 12 (2023): 5754. http://dx.doi.org/10.3390/s23125754.

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Driven by technological advances from Industry 4.0, Healthcare 4.0 synthesizes medical sensors, artificial intelligence (AI), big data, the Internet of things (IoT), machine learning, and augmented reality (AR) to transform the healthcare sector. Healthcare 4.0 creates a smart health network by connecting patients, medical devices, hospitals, clinics, medical suppliers, and other healthcare-related components. Body chemical sensor and biosensor networks (BSNs) provide the necessary platform for Healthcare 4.0 to collect various medical data from patients. BSN is the foundation of Healthcare 4.
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42

Kulig, Andrzej, Mirosław Szyłak-Szydłowski, and Marta Wiśniewska. "Application of Chemical Sensors and Olfactometry Method in Ecological Audits of Degraded Areas." Sensors 21, no. 18 (2021): 6190. http://dx.doi.org/10.3390/s21186190.

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Mineral excavation is a common process throughout the world. The open pits remaining after the closure of a mine require well-considered and meticulous reclamation activities aimed at restoring the environmental properties of a given area. The inspections carried out in Poland indicate numerous irregularities in implementing the reclamation process. The research in this study was conducted in six measurement series and includes both chemical and olfactometry determinations by devices: multisensor portable gas detector and field olfactometer. Statistical analysis of the results obtained show hi
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43

Fauzi, Nurul Illya Muhamad, Yap Wing Fen, Nur Alia Sheh Omar, and Hazwani Suhaila Hashim. "Recent Advances on Detection of Insecticides Using Optical Sensors." Sensors 21, no. 11 (2021): 3856. http://dx.doi.org/10.3390/s21113856.

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Insecticides are enormously important to industry requirements and market demands in agriculture. Despite their usefulness, these insecticides can pose a dangerous risk to the safety of food, environment and all living things through various mechanisms of action. Concern about the environmental impact of repeated use of insecticides has prompted many researchers to develop rapid, economical, uncomplicated and user-friendly analytical method for the detection of insecticides. In this regards, optical sensors are considered as favorable methods for insecticides analysis because of their special
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44

Thormählen, Lars, Dennis Seidler, Viktor Schell, Frans Munnik, Jeffrey McCord, and Dirk Meyners. "Sputter Deposited Magnetostrictive Layers for SAW Magnetic Field Sensors." Sensors 21, no. 24 (2021): 8386. http://dx.doi.org/10.3390/s21248386.

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For the best possible limit of detection of any thin film-based magnetic field sensor, the functional magnetic film properties are an essential parameter. For sensors based on magnetostrictive layers, the chemical composition, morphology and intrinsic stresses of the layer have to be controlled during film deposition to further control magnetic influences such as crystallographic effects, pinning effects and stress anisotropies. For the application in magnetic surface acoustic wave sensors, the magnetostrictive layers are deposited on rotated piezoelectric single crystal substrates. The thermo
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45

Alahnomi, Rammah Ali, Zahriladha Zakaria, Zulkalnain Mohd Yussof, et al. "Review of Recent Microwave Planar Resonator-Based Sensors: Techniques of Complex Permittivity Extraction, Applications, Open Challenges and Future Research Directions." Sensors 21, no. 7 (2021): 2267. http://dx.doi.org/10.3390/s21072267.

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Recent developments in the field of microwave planar sensors have led to a renewed interest in industrial, chemical, biological and medical applications that are capable of performing real-time and non-invasive measurement of material properties. Among the plausible advantages of microwave planar sensors is that they have a compact size, a low cost and the ease of fabrication and integration compared to prevailing sensors. However, some of their main drawbacks can be considered that restrict their usage and limit the range of applications such as their sensitivity and selectivity. The developm
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46

Abdolrazzaghi, Mohammad, Vahid Nayyeri, and Ferran Martin. "Techniques to Improve the Performance of Planar Microwave Sensors: A Review and Recent Developments." Sensors 22, no. 18 (2022): 6946. http://dx.doi.org/10.3390/s22186946.

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Planar microwave sensors have become increasing developed in recent decades, especially in material characterization (solid/liquid) as they provide regions highly sensitive to the surrounding medium. However, when it comes to deciphering the content of practical biological analytes or chemical components inside a host medium, even higher sensitivities are required due to their minute concentrations. This review article presents a comprehensive outlook on various methodologies to enhance sensitivity (e.g., coupling resonators, channel embedding, analyte immobilization, resonator pattern recogni
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47

Constantinoiu, Izabela, and Cristian Viespe. "Synthesis Methods of Obtaining Materials for Hydrogen Sensors." Sensors 21, no. 17 (2021): 5758. http://dx.doi.org/10.3390/s21175758.

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The development of hydrogen sensors has acquired a great interest from researchers for safety in fields such as chemical industry, metallurgy, pharmaceutics or power generation, as well as due to hydrogen’s introduction as fuel in vehicles. Several types of sensors have been developed for hydrogen detection, including resistive, surface acoustic wave, optical or conductometric sensors. The properties of the material of the sensitive area of the sensor are of great importance for establishing its performance. Besides the nature of the material, an important role for its final properties is play
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48

Rezaee, Ashkan, and Jordi Carrabina. "Dual-Gate Organic Thin-Film Transistor and Multiplexer Chips for the Next Generation of Flexible EG-ISFET Sensor Chips." Sensors 23, no. 14 (2023): 6577. http://dx.doi.org/10.3390/s23146577.

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Ion-sensitive field-effect transistors (ISFETs) are used as elementary devices to build many types of chemical sensors and biosensors. Organic thin-film transistor (OTFT) ISFETs use either small molecules or polymers as semiconductors together with an additive manufacturing process of much lower cost than standard silicon sensors and have the additional advantage of being environmentally friendly. OTFT ISFETs’ drawbacks include limited sensitivity and higher variability. In this paper, we propose a novel design technique for integrating extended-gate OTFT ISFETs (OTFT EG-ISFETs) together with
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49

Sayegh, Mohamad-Ammar, Hammam Daraghma, Samir Mekid, and Salem Bashmal. "Review of Recent Bio-Inspired Design and Manufacturing of Whisker Tactile Sensors." Sensors 22, no. 7 (2022): 2705. http://dx.doi.org/10.3390/s22072705.

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Whisker sensors are a class of tactile sensors that have recently attracted attention. Inspired by mammals’ whiskers known as mystacial vibrissae, they have displayed tremendous potential in a variety of applications e.g., robotics, underwater vehicles, minimally invasive surgeries, and leak detection. This paper provides a supplement to the recent tactile sensing techniques’ designs of whiskers that only sense at their base, as well as the materials employed, and manufacturing techniques. The article delves into the technical specifications of these sensors, such as the resolution, measuremen
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Do, Ha Huu, Jin Hyuk Cho, Sang Mok Han, Sang Hyun Ahn, and Soo Young Kim. "Metal–Organic-Framework- and MXene-Based Taste Sensors and Glucose Detection." Sensors 21, no. 21 (2021): 7423. http://dx.doi.org/10.3390/s21217423.

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Taste sensors can identify various tastes, including saltiness, bitterness, sweetness, sourness, and umami, and have been useful in the food and beverage industry. Metal–organic frameworks (MOFs) and MXenes have recently received considerable attention for the fabrication of high-performance biosensors owing to their large surface area, high ion transfer ability, adjustable chemical structure. Notably, MOFs with large surface areas, tunable chemical structures, and high stability have been explored in various applications, whereas MXenes with good conductivity, excellent ion-transport characte
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