OOIR: Observatory of International Research

Papers

(The H4-Index of Sensors and Actuators B-Chemical is 81. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-09-01 to 2025-09-01.)

Article	Citations
High-performance amperometric carbon monoxide sensor based on a xerogel-modified PtCr/C microelectrode	263
Sensing multiplex microRNAs using dual-functional fork-type-track DNA nanomachine on optical fiber	244
Cu2+–diethylaminosalicylaldehyde self-dimer for regulation of DNA amplification with changes in fluorescence	181
A simple approach for effectively improving the resolution of scanning electrochemical cell microscopy	166
Bioorthogonal imaging probe for STING protein in live cell and fixed tissue	165
Aluminium-copper-mesoporous silica molecular sieve-enabled dual-signal point-of-care aptasensor with integrated temperature and multicolor readout	146
Ultrasensitive miRNA-135a-5p biochip for early Alzheimer's disease detection utilizing magneto-optical faraday effect and magnetoplasmonic nanoparticles	145
Quantitative principal component analysis of multiple metal ions with lanthanide coordination polymer networks	137
Materials for optical oxygen sensing under high hydrostatic pressure	136
A simple and efficient approach to sensitize the fluorescence detection to microwell plate	133
The Ohm-azing custom-made Transendothelial Electrical Resistance measuring device (and why is it a current sensation?)	131
Antibody-powered lighting-up fluorescence immunosensor based on hemin/G-quadruplex-quenched DNA-hosted dual silver nanoclusters as emitters	131
From fundamental materials chemistry to sensing applications: Unravelling the water adsorption mechanism of a luminescent optical fibre sensor membrane	131
Influence of microheater patterns: MoSi2-SnO2 as energy-saving chemiresistors for gas sensing applications	129
Improved laser-induced fluorescent instrument for online peroxy radical measurement: Consistency in high-sensitivity for detection	129
A coumarin-based fluorescent probe: Small but multi-signal	128
Multi-interfacial bio-hybrid hydrogel engineering of Alg-Cys polymer coupled with Au nanoparticles as hierarchical excellent electrocatalyst for the detection of prostate cancer drug in human biologic	125
Photothermal multi-species detection in a hollow-core fiber with frequency-division multiplexing	124
Solution-processable quinoidal compounds containing heterocycle for air-stable n‑type organic field-effect transistors and gas sensors	123
Cross-Halbach magnetic levitation configuration for density-based measurement, separation and detection	122
Atmospheric pressure difference centrifuge for stable and consistent plasma separation	121
On-site enrichment and detection of live Salmonella typhimurium using a bioluminescence sensor coupled with a hyperbranched aptamer probe-labelled stir-bars array	119
Hydrophilic redox buffers for textile-based potentiometric sensors	119
Calcium-driven DNA artificial muscle inspired by natural muscle contraction	118
Screening and comparative studies of conducting polymers for developing effective molecular imprinted sensors for copper, zinc superoxide dismutase	118

Editorial Board	115
Editorial Board	110
Editorial Board	109
Editorial Board	105
Multiple signal amplification and selective recognition reactions-assisted homogeneous binary visual aptasensor of tuberculosis interferon γ in clinical samples	105
Preface to the virtual special issue in the honor of Prof. Ernő Pretsch	104
Potentiometric enzymatic aptasensing of paralytic shellfish toxins using graphene-wrapped magnetic nanospheres and an all-solid-state cadmium-selective microelectrode	104
Respirometric sensor vials for rapid and selective detection of coliforms in raw milk	103
Screening and diagnosis of colorectal cancer using nucleic acid aptamers targeting Solobacterium moorei: Development of electrochemical sensors for clinical application	102
High resolution, large height interdigital electrodes fabricated by non-contact electric-field-driven micro-3D printing	102
Plasmon-assisted fast colorimetric detection of bacterial nucleases in food samples	100
Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps	99
A centrifugal microfluidic platform for rapid detection of pathogens based on chitosan nucleic acid extraction and RAA-T7-CRISPR/Cas13a nucleic acid detection	99
Automated Papanicolaou staining system (PapDisc) based on centrifugal microfluidics using cut-off valves	99
Registration of small (below 1%) changes of calcium ion concentration in aqueous solutions and in serum by the constant potential coulometric method	99
Gold nanoarrow hotspot aggregation-induced surface-enhanced Raman scattering for the ultrasensitive detection of ochratoxin A	98
Dual-emission samarium macrocycle as a lab-on-a-molecule enables high-throughput discrimination of anionic sulfonate surfactants	98
Sequential in situ self-assembly/dis-assembly of methylated quinoline silicon(Ⅳ) phthalocyanines: A lysosome two-photon probe and type I/II photodynamic synergistic photothermal therapeutic sensitizer	98
An intelligent portable point-of-care testing (POCT) device for on-site quantitative detection of TNT explosive in environmental samples	96
Measurement of the malignancy marker spermine in human biofluids using smartphone readout and impedance techniques: Analytical validation using HPLC	95
AgNWs/Ti3C2Tx MXene-based multi-responsive actuators for programmable smart devices	94
Construction of a ratiometric two-photon ER-targeting fluorescent probe for the imaging of peroxynitrite in living systems	94
Narrow-band multi-component gas analysis based on photothermal spectroscopy and partial least squares regression method	93
Ultrasensitive label-free electrochemical immunosensors for detecting marine medaka (Oryzias melastigma) vitellogenin based on novel Cu2O–BSA nanoparticles and anti-lipovitellin monoclonal antibody	93
SPR biosensor chip based on mannan isolated from Candida dubliniensis yeasts applied in immunization effectiveness testing	93
Dual mid-infrared wavelength Faraday rotation spectroscopy NOx sensor based on NdFeB ring magnet array	92
Flexible microelectrode array probe for simultaneous detection of neural discharge and dopamine in striatum of mice aversion system	92
“On-off” SERS sensor triggered by IDO for non-interference and ultrasensitive quantitative detection of IDO	91
Engineering cotton fibers with zirconium metal-organic frameworks as a recyclable material for sensing and removing aflatoxins in water	91
Afterglow nanoparticles with 2,5,8,11-tetra-tert-butylperylene as blue emitter for background-free lateral flow immunoassay	91
Self-assembly monolayer fluorescent probe on alumina substrate enabling highly sensitive detection of arsenite ions in groundwater	91
A flexible SALDI-MS substrate for no background interference detection	90
Surface acoustic wave-based lab-on-a-chip for the fast detection of Legionella pneumophila in water	89
A large-dynamic range conductivity-modulated PANI online analysis and sensing platform for ammonia gas detection using coupled optical probing mode	89
The effect of electroactive length and intrinsic conductivity on the actuation behaviour of conducting polymer-based yarn actuators for textile muscles	88
Chelating and pendant dual-antenna effect modulated ratiometric electrochemiluminescence system for lung cancer marker assay	88
A lateral flow immunochromatographic assay based on nanobody-oriented coupling strategy for aflatoxin B1 detection	88
Development of a highly sensitive C1QC-targeting aptamer and its application in a modified antibody-aptamer sandwich biosensor for C1QC biomarker detection	87
Experimental investigation on the physical parameters of ionic polymer metal composites sensors for humidity perception	87
Real-time detection of attenuated blood polarity in mouse models of circulating tumor based on a fluorescent probe	87
Regenerable bead-based microfluidic device with integrated thin-film photodiodes for real-time monitoring of DNA detection	86
Ratiometric upconversion fluorometric turn-off nanosensor for quantification of furfural in foods	85
Near-infrared cyanine-based fluorescent probe: Rapidly visualizing the in situ release of hydrazine in living cells and zebrafish	85
Click reaction-based single-particle dark-field microscopy: A visual platform for the highly sensitive and selective detection of pyrophosphatase	85
Facile and cost-effective PDMS double-casting method based on curing temperature and ratio for solvent detecting applications	84
Controllable synthesis and crystal facet, composition and temperature dependent gas sensing properties of Sn1−xS-CdS superlattice nanowires with ultrafast response	84
Enhanced non-enzyme nitrite electrochemical sensing property based on stir bar-shaped ZnO nanorods decorated with nitrogen-doped reduced graphene oxide	84
Self-assembled dipeptide grafted nanohybrid material strips for reliable spectroscopic and electrochemical recognition of tryptamine	83
Photoacoustic trace-analysis of breath isoprene and acetone via interband- and Quantum Cascade Lasers	83
Temperature/pH dual response hydrogel functionalized U-shaped optical fiber sensor for Pb2+ detection	82

Synthesis of highly selective molecularly imprinted nanoparticles by a solid-phase imprinting strategy for fluorescence turn-on recognition of phospholipid	82
Straightforward high-temperature antibody immobilization for rapid and simple microfluidic paper-based ELISA for detection of β’-component (Onc k 5) protein, a major IgE-binding protein in salmon roe	82
2D/2D {001}TiO2-/Ti3C2T composite with ultra-high sensing performance for NO2 at room temperature	82
Portable, facile microfluidic platform using a low-cost vacuum pump for multiplex biomarker detection in human samples	82
Biocompatible salt-enhanced thin porous humidity sensor for human interaction sensing	82
Ratiometric fluorescent sensor based on a truncated specific aptamer by MGO-SELEX screening for streptomycin detection	81
An electrospun sensing label based on poly (vinyl alcohol)-Ag-grape seed anthocyanidin nanofibers for smart, real-time meat freshness monitoring	81
Fast responding and recovering of NO2 sensors based on Ni-doped In2O3 nanoparticles	81
Development of folding-based and signal-amplified fluorescence aptasensors using G-quadruplex quinclorac aptamer variants engineered via exonuclease digestion and circular dichroism spectroscopy	81
Investigating the thermally induced p-n transition in reduced graphene oxide layers exposed to hydrogen sulfide	81