Critical Review
Point-of-care and self-testing for potassium: recent advances
The review summarizes recent advances in technologies and devices for point-of-care and self-testing of potassium in venous blood, fingerprick blood, interstitial fluid, sweat, urine, and indirectly using ECG.
Critical Review
Paper-based sensors for diagnostics, human activity monitoring, food safety and environmental detection
Paper-based sensors exploiting the advantages of paper can replace traditional substrate materials for building sensors which are simple to manufacture, inexpensive, easy-to-operate, portable and disposable.
Critical Review
Recent advances in liquid biopsy technologies for cancer biomarker detection
The current and emerging liquid biopsy methods for analysing three major circulating biomarkers namely ctDNA, CTCs and exosomes as well as biological and technical challenges associated with these methods have been reviewed.
Paper
Optical detection of pH changes in artificial sweat using near-infrared fluorescent nanomaterials
Photoluminescent single-walled carbon nanotubes are versatile tools for the development of optical nanosensors. Carbon nanotubes were employed for the optical detection of pH within a biologically relevant range in a model biofluid.
Paper
Chloro aluminum phthalocyanine-based organic thin-film transistors as cannabinoid sensors: engineering the thin film response
Cl-AlPc-based OTFTs can be used as low-cost, point-of-source cannabinoid sensors. Through device performance and film characterization, the film thickness and device geometry has been optimized for both solution and vapor THC samples.
Paper
Rapid and direct quantification of the SARS-CoV-2 virus with an ultrasensitive nanobody-based photonic nanosensor
An innovative nanophotonic sensor using bioengineered nanobodies as receptors enables ultrasensitive COVID-19 detection and viral load determination in a 15 min assay without sample pretreatments.
Paper
Intercalating methylene blue in molecular beacon for sensitive detection of salivary TNF-α towards early diagnosis of oral cancer
An electrochemical molecular beacon-based biosensor is developed for the sensitive detection of TNF-α, which presents a non-invasive strategy for salivary cytokines detection towards the early diagnosis of oral cancer in a point-of-care fashion.
Paper
Comparing two cortisol aptamers for label-free fluorescent and colorimetric biosensors
A comparison between two truncated DNA aptamers reported to bind with cortisol was performed and binding was observed only for one of them. Two label-free sensing methods were studied including cortisol/gold nanoparticle interactions critical for colorimetric sensing.
About this collection
To celebrate one year since the first issue of Sensors & Diagnostics, this collection highlights some of the very best work, carefully chosen by our dedicated editorial team and world-renowned editorial board members.
We are entering the first full year of Sensors and Diagnostics and are happy to share with you some of the achievements made by different research teams around the globe. The research papers selected cover five fascinating areas representative for the sensing and diagnostic field. They include bioreceptor considerations via cortisol aptamers, electrochemical molecular beacons for sensitive detection of salivary TNF-α for oral cancer diagnostics as well as a nanobody-based photonic nanosensor for vial sensing. The focus on near-infrared fluorescent nanomaterials as optical pH probes as well as the construction of organic thin-film transistors as cannabinoid sensors underlines the importance of materials aspects of the sensing field.
Three Critical Reviews have found in addition wider interest by readers and have been included in the 2022 Editor’s Choice collection to understand better the advances made beyond the state of the art in the last year and to provide a road map for the months to come. We hope you enjoy the small collation. Simply click on the links to get started.