Results 41 to 50 of about 4,821 (159)

Ion-selective electrodes with solid contact for heavy metals determination

open access: yesE3S Web of Conferences, 2013
Potentiometric properties of ion-selective electrodes with solid contact for lead, cadmium and zinc determination were investigated. The ionic liquids (ILs) alkyl methyl imidazolium chlorides are used as lipophilic ionic additive to the membrane phase ...
Wardak C., Lenik J.
doaj   +1 more source

Toward personalized healthcare: Advances in two‐dimensional nanomaterial‐based flexible electrochemical sensors for physiological monitoring

open access: yesBMEMat, EarlyView.
This review provides an overview of the properties, composites and application of two‐dimensional (2D) nanomaterials for wearable electrochemical biosensors. Also, the challenges and future prospects of utilizing 2D nanomaterials in wearable electrochemical biosensor applications are discussed.
Kou Zhang   +8 more
wiley   +1 more source

CO2 Fluxes and Soil Responses to Straw and Herbicide in Peanut

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Peanut cultivation plays an important agronomic role in Brazil, especially in rotation with sugarcane, promoting biological nitrogen fixation and improving soil quality. This study aimed to test the hypothesis that the combined use of sugarcane mulch, peanut cultivation, and herbicide application would affect soil CO₂ fluxes, soil chemical ...
Heytor Lemos Martins   +7 more
wiley   +1 more source

Body size of male Atlantic salmon (Salmo salar L.) at introduction of a 5‐week LD12:12 winter signal influences their decision to mature early or smoltify

open access: yesJournal of Fish Biology, EarlyView.
Abstract Sexual maturation of male Atlantic salmon post‐smolts (‘jacking’) is undesired in aquaculture and seems to occur due to the intensification in modern facilities. Maturation depends on internal and external factors (temperature, photoperiod, feed availability, energy levels, body size, genetic background) that act on the brain‐pituitary‐gonad ...
Enrique Pino‐Martinez   +5 more
wiley   +1 more source

Next-Generation Potentiometric Sensors: A Review of Flexible and Wearable Technologies

open access: yesBiosensors
In recent years, the field of wearable sensors has undergone significant evolution, emerging as a pivotal topic of research due to the capacity of such sensors to gather physiological data during various human activities. Transitioning from basic fitness
Mahmoud Abdelwahab Fathy   +1 more
doaj   +1 more source

Potentiometric investigation of acid-base equilibria of two new pyrimidine derivatives in various methanol-water media [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
The acid-base properties of 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one (L1) and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-thione (L2) were investigated potentiometrically at an ionic strength of 0.10M(LiCl) in 19.8, 33.6 and 55.9 % (v/v) methanol ...
Kiliç Hasan, Birol Er
doaj   +1 more source

Accuracy and Bias of Pulse Oximetry in the Intensive Care Unit: A Prospective Observational Study

open access: yesNursing in Critical Care, Volume 31, Issue 3, May 2026.
ABSTRACT Background Non‐invasive oximetry is crucial for the easy and continuous monitoring of blood oxygenation, from routine assessments to critical care in intensive care units (ICU). Studies indicate that pulse oximeter readings may be biased due to the high light absorption of melanin.
Kaio B. Barros   +7 more
wiley   +1 more source

Single Solid‐State Ion Channels as Potentiometric Nanosensors

open access: yesAdvanced Functional Materials, Volume 36, Issue 18, 2 March 2026.
Single gold nanopores functionalized with mixed self‐assembled monolayers act as solid‐state ion channels for direct, selective potentiometric sensing of inorganic ions (Ag⁺). The design overcomes key miniaturization barriers of conventional ion‐selective electrodes by combining low resistivity with suppressed loss of active components, enabling robust
Gergely T. Solymosi   +4 more
wiley   +1 more source

Wearable Sensors for Detecting Biomarkers in Sweat: A Systematic Review

open access: yesChemistryEurope, Volume 4, Issue 3, March 2026.
This review discusses the latest research advancements in wearable sweat sensors (WSS), beginning with an introduction to their development and structural composition. Subsequently, it highlights the innovation in sweat absorption units, transitioning from traditional materials (such as absorbent pads, microporous tubes, and hydrogels) to highly ...
Zhengying Du   +12 more
wiley   +1 more source

Flexible Inkjet-Printed pH Sensors for Application in Organ-on-a-Chip Biomedical Testing

open access: yesBiosensors
Reliable models of the lung environment are important for research on inhalation products, drug delivery, and how aerosols interact with tissue. pH fluctuations frequently accompany real physiological processes in pulmonary environments, so monitoring pH
Željka Boček   +5 more
doaj   +1 more source

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