sensors

From e-waste to eco-sensors: synthesis of reduced graphene oxide/ZnO from discarded batteries for a rapid electrochemical bisphenol A sensor

RSC Adv., 2024, 14,36073-36083
DOI: 10.1039/D4RA04046E, Paper
Open Access
Md Humayun Kabir, Md Yeasin Pabel, Nishat Tasnim Bristy, Md. Abdus Salam, Muhammad Shahriar Bashar, Sabina Yasmin
E-waste-derived reduced graphene oxide/ZnO forfast electrochemical detection of bisphenol A (BPA).
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sensors

Carbon quantum dot (CQD)-dithizone-based thin-film chemical sensors for the specific detection of lead ions in water resources

Environ. Sci.: Water Res. Technol., 2024, 10,2858-2868
DOI: 10.1039/D4EW00452C, Paper
Tanmay Vyas, Hritik Kumar, Sandeep Choudhary, Abhijeet Joshi
Dithizone-CQD-based thin-film chemical sensors for the detection of lead ions in various water resources.
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sensors

Lead ion (Pb2+) electrochemical sensors based on novel Schiff base ligands

Environ. Sci.: Water Res. Technol., 2024, 10,2997-3006
DOI: 10.1039/D4EW00485J, Paper
Open Access
Zahra Akbari, Khouloud Abid, Daniela Iannazzo, Morteza Montazerozohori, Enza Fazio, Fortunato Neri, Carmelo Corsaro, Giovanni Neri
The work reports the development of an AuNPs-L1/SPCE sensor based on a novel L1 Schiff base, with enhanced Pb2+ sensitivity and LOD of 0.298 μM. The sensor is suitable for Pb2+ detection in seawater with no sample treatment.
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sensors

Advances in Flexible Ionic Thermal Sensors: Present and Perspectives

Nanoscale, 2024, Accepted Manuscript
DOI: 10.1039/D4NR03423F, Review Article
Zehao Zhao, Yun Shen, Run Hu, Dongyan Xu
Ionic thermal sensors (ITSs) represent a promising frontier in sensing technology, offering unique advantages over conventional electronic sensors. Comprising a polymer matrix and electrolyte, these sensors possess inherent flexibility, stretchability,...
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sensors

Recent advances in MXene-based composites for piezoelectric sensors

Nanoscale, 2024, Advance Article
DOI: 10.1039/D4NR03233K, Review Article
Long Jin, Yong Ao, Tianpei Xu, Yulin Zou, Weiqing Yang
This review systematically discusses various MXene composites, exploring the impact of incorporating different materials on the piezoelectric properties and the overall efficiency of sensors. Images reproduced with permission, full details in paper.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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sensors

MXene-based Aptasensors: A perspective on recent advances

Nanoscale, 2024, Accepted Manuscript
DOI: 10.1039/D4NR03984J, Minireview
Navid Rabiee, Mohammad Rabiee
Recent advancements in science and technology have significantly enhanced public health by integrating novel materials and early diagnostic methods. A key focus is on MXenes, a class of materials known...
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sensors

Highly stable and ultra-fast vibration-responsive flexible iontronic sensors for accurate acoustic signal recognition

Nanoscale, 2024, Advance Article
DOI: 10.1039/D4NR03370A, Paper
Yan Wang, Weiqiang Liao, Xikai Yang, Kexin Wang, Shengpeng Yuan, Dan Liu, Cheng Liu, Shiman Yang, Li Wang
A wearable acoustic vibration pressure sensor was developed based on an interfacial-enhanced iontronic dielectric and integrated with an acoustic recognition system using a deep learning classifier.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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sensors

Apple granted patent for straps with sensors in Apple Watch

The sensors could also be paired with another Apple device like an iPhone or a MacBook




sensors

Advancing green chemistry in environmental monitoring: the role of electropolymerized molecularly imprinted polymer-based electrochemical sensors

Green Chem., 2024, Advance Article
DOI: 10.1039/D4GC03250K, Tutorial Review
Christopher Mwanza, Wei-Zhi Zhang, Kalulu Mulenga, Shou-Nian Ding
Molecularly imprinted polymers (MIPs) are synthetic materials designed to mimic the natural “lock and key” mechanism observed in biomolecular systems, such as the interactions between antibodies and antigens.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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sensors

BS6 technologies common to scooters, bikes: Fuel-injection, sensors and more

Whether you buy a Rs 40,000 TVS XL100 moped or even the Rs 2 lakh Bajaj Dominar, these technologies in the BS6 era are now common to all.




sensors

How sensors make your phone "Star Trek smart"

Can your current smartphone be any smarter? Sure it can, if the device knows how to better understand its surroundings with the help of internal sensors. Qualcomm's Project Gimbal does just that for app developers. Here's a peek at how Paramount is using the technology.




sensors

Shack–Hartmann wavefront sensors based on 2D refractive lens arrays and super-resolution multi-contrast X-ray imaging

Different approaches of 2D lens arrays as Shack–Hartmann sensors for hard X-rays are compared. For the first time, a combination of Shack–Hartmann sensors for hard X-rays (SHSX) with a super-resolution imaging approach to perform multi-contrast imaging is demonstrated. A diamond lens is employed as a well known test object. The interleaving approach has great potential to overcome the 2D lens array limitation given by the two-photon polymerization lithography. Finally, the radiation damage induced by continuous exposure of an SHSX prototype with a white beam was studied showing a good performance of several hours. The shape modification and influence in the final image quality are presented.




sensors

Wearable sensors detect what's in your sweat

Full Text:

Needle pricks not your thing? A team of National Science Foundation-funded scientists is developing wearable skin sensors that can detect what's in your sweat. They hope that one day, monitoring perspiration could bypass the need for more invasive procedures like blood draws, and provide real-time updates on health problems such as dehydration or fatigue. In a new paper, the team describes a new sensor design that can be rapidly manufactured using a "roll-to-roll" processing technique that essentially prints the sensors onto a sheet of plastic like words on a newspaper. They used the sensors to monitor the sweat rate, and the electrolytes and metabolites in sweat, from volunteers who were exercising, and others who were experiencing chemically induced perspiration. The new sensors contain a spiraling microscopic tube, or microfluidic, that wicks sweat from the skin. By tracking how fast the sweat moves through the microfluidic, the sensors can report how much a person is sweating, or their sweat rate. The microfluidics are also outfitted with chemical sensors that can detect concentrations of electrolytes like potassium and sodium, and metabolites like glucose.

Image credit: Bizen Maskey/Sunchon National University




sensors

New sensors to monitor storm surge on bridges

New sensors to monitor storm surge on bridges




sensors

New sensors to monitor storm surge on bridges

New sensors to monitor storm surge on bridges




sensors

IDEX Biometrics to provide fingerprint sensors for Zwipe

IDEX Biometrics has announced it will provide its...




sensors

Motes: Remote sensors that transmit temperature, light intensity and more

If the Motes project is successful, it will make remote sensing as easy as using an iPhone. They are currently raising funds on Indiegogo,



  • Gadgets & Electronics

sensors

We have introduced Photoelectric Sensors E3FA and E3RA.

Product Information




sensors

Photoelectric Sensors

A new generation in sensing performance(E3FA, E3RA, E3FB, E3RB)




sensors

Smart Sensors (Laser Displacement & Measurement Sensors)

A Host of Smart Functions Inside a Compact Body with a Full Range of Laser Types(ZX-L-N)




sensors

Smart Sensors 2D CMOS Laser Type

High-precision Displacement Measurement Sensors Bringing Smart Sensors into New Fields.(ZS Series)




sensors

Smart Laser Sensors

Ideal for Applications That Cannot Be Handled with Fiber Sensors or Photoelectric Sensors(E3NC)




sensors

Temperature Sensors for Packaging Machines

Accurately Measure Seal Temperature. Temperature Sensors for Packaging Machines.(E52 (For Packing Machine))




sensors

IoT Flow Sensors

Detect Signs of Abnormalities in Cooling Water by Simultaneous Measurement of “Flow Rate + Temperature”(E8FC)




sensors

IoT Pressure Sensors

Detect Signs of Abnormalities in Cooling Water and Hydraulic Oil by Simultaneous Measurement of “Pressure + Temperature”(E8PC)




sensors

MS Tech Showcases Unique Nanotechnology Sensors and Solutions for Detection of Explosives, Narcotics, and TIC's for the HLS, Military, Law Enforcement, and Critical Infrastructure Sectors at AUSA 2018

These globally-deployed products, integrated with the company's innovative sensors, enable rapid detection and identification of various threats




sensors

UAV Propulsion Tech Representing Reventec Ltd to Market their Capacitive Liquid Level Sensors & Position/Speed/Temp Sensors to the US UAV Market

Reventec's capacitive liquid level sensors are starting to be used by UAV companies because of their accuracy and reliability.




sensors

I Always Feel Like Somebody's Sensing Me! A Framework to Detect, Identify, and Localize Clandestine Wireless Sensors. (arXiv:2005.03068v1 [cs.CR])

The increasing ubiquity of low-cost wireless sensors in smart homes and buildings has enabled users to easily deploy systems to remotely monitor and control their environments. However, this raises privacy concerns for third-party occupants, such as a hotel room guest who may be unaware of deployed clandestine sensors. Previous methods focused on specific modalities such as detecting cameras but do not provide a generalizable and comprehensive method to capture arbitrary sensors which may be "spying" on a user. In this work, we seek to determine whether one can walk in a room and detect any wireless sensor monitoring an individual. As such, we propose SnoopDog, a framework to not only detect wireless sensors that are actively monitoring a user, but also classify and localize each device. SnoopDog works by establishing causality between patterns in observable wireless traffic and a trusted sensor in the same space, e.g., an inertial measurement unit (IMU) that captures a user's movement. Once causality is established, SnoopDog performs packet inspection to inform the user about the monitoring device. Finally, SnoopDog localizes the clandestine device in a 2D plane using a novel trial-based localization technique. We evaluated SnoopDog across several devices and various modalities and were able to detect causality 96.6% percent of the time, classify suspicious devices with 100% accuracy, and localize devices to a sufficiently reduced sub-space.




sensors

System and method for communicating with sensors/loggers in integrated radio frequency identification (RFID) tags

A system and method is disclosed for communicating with sensors/loggers in integrated radio frequency identification (RFID) tags. An RFID reader uses a Communicate With Data Logger Command to communicate with a data logger in an RFID tag. The RFID reader performs data access processes using an Index Register and a Data Register of the RFID tag. The RFID reader selects one of (1) Index Read access (2) Index Write access (3) Data Write access (4) Data Read access with parity and (5) Data Read access with cyclic redundancy check (CRC). The RFID tag performs the requested data access and then performs an error detection process.




sensors

Diagnostic radio frequency identification sensors and applications thereof

An integrated passive wireless chip diagnostic sensor system is described that can be interrogated remotely with a wireless device such as a modified cell phone incorporating multi-protocol RFID reader capabilities (such as the emerging Gen-2 standard) or Bluetooth, providing universal easy to use, low cost and immediate quantitative analyses, geolocation and sensor networking capabilities to users of the technology. The present invention can be integrated into various diagnostic platforms and is applicable for use with low power sensors such as thin films, MEMS, electrochemical, thermal, resistive, nano or microfluidic sensor technologies. Applications of the present invention include on-the-spot medical and self-diagnostics on smart skin patches, Point-of-Care (POC) analyses, food diagnostics, pathogen detection, disease-specific wireless biomarker detection, remote structural stresses detection and sensor networks for industrial or Homeland Security using low cost wireless devices such as modified cell phones.




sensors

Analyte sensors comprising hydrogel membranes

Generally, embodiments of the present disclosure relate to analyte determining methods and devices (e.g., electrochemical analyte monitoring systems) that have improved signal response and stability by inclusion of a coating including a hydrogel, a crosslinker, and a swelling modulator, where the coating is disposed proximate to a working electrode of in vivo and/or in vitro analyte sensors, e.g., continuous and/or automatic in vivo monitoring using analyte sensors and/or test strips. Also provided are systems and methods of using the, for example electrochemical, analyte sensors in analyte monitoring.




sensors

Reference electrodes having an extended lifetime for use in long term amperometric sensors

The present application provides Ag/AgCl based reference electrodes having an extended lifetime that are suitable for use in long term amperometric sensors. Electrochemical sensors equipped with reference electrodes described herein demonstrate considerable stability and extended lifetime in a variety of conditions.




sensors

MEMS sensors with closed nodal anchors for operation in an in-plane contour mode

A MEMS sensor includes at least one closed nodal anchor along a predetermined closed nodal path on at least one surface of a resonant mass. The resonant mass may be configured to resonate substantially in an in-plane contour mode. Drive and/or sense electrodes may be disposed within a cavity formed at least in part by the resonant mass, the closed nodal anchor, and a substrate.




sensors

Biosensors and bio-measurement systems using the same

A biosensor is provided. The biosensor is used to sense a biological sample and has a code representing features of the biosensor. The biosensor includes a substrate and a conductive layer. The conductive layer is disposed on a first side of the substrate and includes a first conductive loop and a second conductive loop. The first conductive loop is formed between a first node and a second node and has a first impedance. The second conductive loop is formed between the second node and a third node and has a second impedance. The code is determined according to a comparison result between the second impedance and the first impedance.




sensors

Molecular biosensors capable of signal amplification

The present invention provides molecular biosensors capable of signal amplification, and methods of using the molecular biosensors to detect the presence of a target molecule.




sensors

Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection

A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.




sensors

Magnetic recording head having protected reader sensors and near zero recession writer poles

A magnetic head according to one embodiment includes a module, the module having first and second transducers of different transducer types positioned towards a media facing side of the module, wherein the different transducer types are selected from a group consisting of data reader transducers, servo reader transducers, write transducers, piggyback read-write transducers and merged read-write transducers; a first protection structure for protecting the first transducer; and wherein the second transducer has either no protection or is protected by a second protection structure that is different than the first protection structure.




sensors

System and methods utilizing dual read sensors

A dual-stack read sensor is utilized in a storage device having an actuator arm that positions the read sensor over a rotating storage medium. The dual-stacked read sensor includes a primary read sensor having a first set of read sensor characteristics and a secondary read sensor having a second set of read sensor characteristics that differ from the first set of read sensor characteristics, wherein the secondary read sensor is positioned relative to the primary read sensor to be radially offset from the primary read sensor relative to a data track being read.




sensors

Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection

A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.




sensors

Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor structure with multiple stacked sensors and improved center shield

A two-dimensional magnetic recording (TDMR) read head has upper and lower read sensors wherein the lower read sensor has its magnetization biased by side shields of soft magnetic material. The center shield between the lower and upper sensors may be an antiparallel structure (APS) with two ferromagnetic layers separated by an antiparallel coupling (APC) layer. The center shield has a central region and two side regions, but there is no antiferromagnetic (AF) layer in the central region. Instead the two side regions of the upper ferromagnetic layer in the APS are pinned by AF tab layers that are electrically isolated from the upper sensor. The upper ferromagnetic layer and the APC layer in the APS may also be located only in the side regions. The thickness of the center shield can thus be made thinner, which reduces the free layer to free layer spacing.




sensors

Systems and methods for aiming asphalt material feed sensors

A system for measuring the height of paving material distributed by an auger of a paving machine in front of a grading implement, such as a screed, is disclosed. The system includes a sonic sensor and a laser pointer. The sonic sensor generates a sonic signal which is directed at the paving material distributed by the auger. The laser pointer generates a laser beam which is similarly directed at the paving material that has been distributed by the auger. The laser beam and the sonic signal meet at a common position on the paving material.




sensors

Elastomeric particle having an electrically conducting surface, a pressure sensor comprising said particles, a method for producing said sensor and a sensor system comprising said sensors

An elastomeric particle (1, 1, 1″) comprises a non-conducting elastomeric body (2) having an electrically conducting surface (4a, 4b, 6). Pressure sensor elements (20, 20', 20″; 30, 30', 30″, 30'″) comprising such elastomeric particles are disclosed, as well as sensor clusters (50″, 50'″, 50IV, 50V, 50VI, 50VII, 70) comprising such sensor elements. There is also disclosed a pressure sensor element (40, 40', 40″, 40'″, 40IV, 40V, 40VI, 40VII), comprising a resistive element (44, 44', 44″) providing a conduction path, a first electrode (42a, 42a-1, 42a-2, 42a-3, 42a-4, 42a-5, 42a-6), connected to the resistive element, a second electrode (42b, 42b'), which in a quiescent state is spaced from said first electrode, wherein the second electrode, when the pressure sensor element is subjected to a pressure, is arranged to contact said first electrode or said resistive element. Systems comprising such sensor elements and sensor clusters are disclosed, as well as methods of their fabrication.




sensors

Portable biometric monitoring devices having location sensors

Assisted-GPS for a portable biometric monitoring device is provided. The portable biometric monitoring device may obtain updated ephemeris data from an associated secondary device via a short-range, low-power communication protocol. The secondary device may be a computing device such as a smartphone, tablet, or laptop. Various rules may control when the ephemeris data is updated. The ephemeris data may be used in the calculation of the global position of the portable biometric monitoring device. Additionally, the portable biometric monitoring device may communicate downloaded position fixing data to the associated secondary device. The associated secondary device may then calculate the global position from the position fixing data.




sensors

Use and making of biosensors utilizing antimicrobial peptides for highly sensitive biological monitoring

A biosensor and method of making are disclosed. The biosensor is configured to detect a target and may include a peptide immobilized on a sensing component, the sensing component having an anode and a cathode. The immobilized peptide may comprise an antimicrobial peptide binding motif for the target. The sensing component has an electrical conductivity that changes in response to binding of the immobilized peptide to the target. The immobilized peptide may bind one or more targets selected from the list consisting of: bacteria, Gram-negative bacteria, Gram-positive bacteria, pathogens, protozoa, fungi, viruses, and cancerous cells. The biosensor may have a display with a readout that is responsive to changes in electrical conductivity of the sensing component. The display unit may be wirelessly coupled to the sensing component. A resonant circuit with an inductive coil may be electrically coupled to the sensing component. A planar coil antenna may be disposed in proximity to the resonant circuit, the planar coil antenna being configured to provide power to the sensing component.




sensors

Biosensors

A chemiresistive biosensor for detecting an analyte can include a high specific surface area substrate conformally coated with a conductive polymer, and a binding reagent immobilized on the conductive polymer, wherein the binding reagent has a specific affinity for the analyte. The conductive polymer can be deposited on a substrate by oCVD.




sensors

Method and apparatus for determining linear position using multiple magnetic field sensors

The linear position of an object is estimated using multiple magnetic field sensors and a magnet. The multiple magnetic field sensors are held in fixed relation to one another and in moving relation with respect to the magnet. Readings of the first and second magnetic field sensors and the fixed distance between the first and second magnetic field sensors may be used to estimate the linear position. In some embodiments, an estimated frequency of an approximately sinusoidal field versus position characteristic is also used as part of the estimation.




sensors

Thickness shear mode resonator sensors and methods of forming a plurality of resonator sensors

Arrays of resonator sensors include an active wafer array comprising a plurality of active wafers, a first end cap array coupled to a first side of the active wafer array, and a second end cap array coupled to a second side of the active wafer array. Thickness shear mode resonator sensors may include an active wafer coupled to a first end cap and a second end cap. Methods of forming a plurality of resonator sensors include forming a plurality of active wafer locations and separating the active wafer locations to form a plurality of discrete resonator sensors. Thickness shear mode resonator sensors may be produced by such methods.




sensors

Group of reflection optic sensors in a weft feeder for weaving looms

Group of optic sensors (S) in a weft feeder, in particular for weaving looms, comprising one or more pairs of emitting sensors (E) and receiving sensors (R) arranged on a portion of the weft feeder (C) which extends laterally to the drum (T) of the weft feeder whereon the coils of the weft thread are wound, so as to form optic radiation going-paths from each of said emitting sensors (E) to a reflecting surface (9) provided on said drum (T) and optic radiation back-paths, from said reflecting surface (9) to corresponding receiving sensors (R), for detecting the presence/absence of a thread which crosses said paths. The optic sensors (E, R) are of the SMT type and are wired on a printed-circuit board (8) with an optic axis parallel to the plane of said board (8). A first group of total-reflection mirrors (V), one for each pair of emitting/receiving sensors (E, R), is inclined so as to deviate the optic radiation from the plane of the board (8) to a plane perpendicular to or inclined with respect to the same. A second group of partial-reflection mirrors (H), one for each pair of emitting/receiving sensors (E, R), is inclined so as to deviate the optic radiation in the same plane as board 8.




sensors

Analyte sensors and methods of use

An analyte sensor system including a substrate, a first electrode disposed on a first surface of the substrate, a second electrode disposed on a second surface of the substrate, a third electrode provided in electrical contact with at least one of the first or second electrodes, where at least a portion of the first electrode and the second electrode are subcutaneously positioned in a patient, and where the third electrode is substantially entirely positioned external to the patient, and corresponding methods are provided.




sensors

Diagnostic testing sensors for resonant detectors

Biosensor apparatus and associated method for detecting a target material using a vibrating resonator having a surface that operably interacts with the target material. A detector is in electrical communication with a sensor, the sensor comprising a first paddle assembly connected to a second paddle assembly, the first paddle assembly having at least one microbalance sensing resonator proximate a proximal end and at least one sensing electrical contact proximate a distal end in electrical communication with the sensing resonator. The at least one sensing resonator has a target coating for operably interacting with the target material, and the second paddle assembly has a microbalance reference resonator proximate the proximal end and at least one reference electrical contact proximate the distal end in electrical communication with the reference resonator.