Flexible electrochemical (EC) sensors have shown great prospect in epidermal detection for personal healthcare and disease diagnosis. However, no reports been seen flexible device urea analysis body fluids. Herein, we developed a wearable EC sensor based on surface molecularly imprinted nanotubes noninvasive monitoring with high selectivity human sweat. The was prepared by electropolymerization of 3,4-ethylenedioxythiophene (EDOT) monomer the hierarchical network carbon (CNTs) gold (Au NTs)...

Abstract Stretchable electrochemical sensors are conceivably a powerful technique that provides important chemical information to unravel elastic and curvilinear living body. However, no breakthrough was made in stretchable device for biological detection. Herein, we synthesized Au nanotubes (NTs) with large aspect ratio construct an effective sensor. Interlacing network of NTs endows the sensor desirable stability against mechanical deformation, nanostructure excellent performance...

Cuproptosis, a distinct cell death pathway, has been integrated into nanomedicine for disease theranostics. However, current nanosystems inducing cuproptosis rely on exogenous toxic copper ions, limiting the scope of biomaterials. Developing nanoplatforms that induce without holds substantial promise. Here, we engineered two-dimensional iron (Fe) single-atom–doped molybdenum disulfide (MoS 2 ) piezocatalyst (Fe-MoS tumor therapy. Incorporating single Fe atoms enhances MoS piezoelectric...

Optical thin films incorporating NaYF(4):Er,Yb upconverting nanorods and chromoionophore ETH 5418 in hydrophobic polymer matrixes have been developed for the first time to measure pH metal ions based on ion-exchange mechanism. The absorption spectra of protonated unprotonated overlap two emission peaks material, respectively, which makes inert ion-sensitive. Optodes (Na(+), K(+), Ca(2+), Cu(2+)) were investigated exhibited excellent sensitivity, selectivity, reproducibility. Because...

Abstract Existing methods offer little direct and real‐time information about stretch‐triggered biochemical responses during cell mechanotransduction. A novel stretchable electrochemical sensor is reported that takes advantage of a hierarchical percolation network carbon nanotubes gold (CNT‐AuNT). This hybrid nanostructure provides the with excellent time‐reproducible mechanical performances while granting very good cellular compatibility, making it perfectly apt to induce monitor...

Current achievements on electrochemical monitoring of cells are often gained two-dimensional (2D) substrates, which fail in mimicking the cellular environments and accurately reproducing functions within a three-dimensional (3D) tissue. In this regard, 3D scaffold concurrently integrated with function cell culture sensing is conceivably promising platform to monitor real time under their vivo-like microenvironments. However, it particularly challenging construct such multifunctional...

The lower detection limit and the selectivity behavior of anion-selective electrodes (ISEs) are improved by using optimized inner solutions membrane compositions. With a based on recently described ionophore [9]mercuracarborand-3, 2 × 10-9 M has been achieved for iodide. Nevertheless, improvements less pronounced than in case cation ISEs. This is mainly due to fact that so far no anion ISE known with extremely high selectivities If does not contain an ionophore, leaching ion exchanger from...

An optical microsensor array is described for the rapid analysis of silver ions at low parts per trillion levels. Because ionophore o-xylylenebis(N,N-diisobutyldithiocarbamate) (Cu−I) was reevaluated and shown to exhibit excellent selectivity ions, ion-selective electrode (ISE) membranes were optimized found lowest reported detection limit so far (3 × 10-10 M). A corresponding Ag+-selective fluorescent sensing trace level Ag+ then developed. It fabricated using plasticized PVC-based...

An ionophore-based ion-selective optode platform on paper is described for the first time with a sodium as example. Cellulose shown to be an excellent substrate adsorption of required chromoionophore, ionophore, and ion-exchanger species. These adsorbed components form hydrophobic phase that enables heterogeneous optical ion sensing in absence any plasticizer or organic polymer phase.

Stretchable electrochemical (EC) sensors have broad prospects in real-time monitoring of living cells and tissues owing to their excellent elasticity deformability. However, the redox reaction products cell secretions are easily adsorbed on electrode, resulting sensor fouling passivation. Herein, we developed a stretchable photocatalytically renewable EC based Au nanotubes (NTs) TiO2 nanowires (NWs) sandwich nanonetworks. The external NTs used for sensing, internal NWs provide photocatalytic...

Remarkable progresses have been made in electrochemical monitoring of living cells based on one-dimensional (1D) or two-dimensional (2D) sensors, but the cultured 2D substrate under these circumstances are departed from their three-dimensional (3D) microenvironments vivo. Significant advances developing 3D culture scaffolds to simulate microenvironment yet most them insulated, which greatly restricts application sensing. Herein, we propose a versatile strategy endow insulated with...

A methyl methacrylate and decyl (MMA-DMA) copolymer has been used to fabricate plasticizer-free ion-selective membranes. The matrix showed good mechanical properties, can be solvent cast in complete analogy traditional ISE material was evaluated ionophore-free cation anion exchanger membranes as well electrode containing five different neutral ionophores. selectivity of Na (X) based found superior when compared corresponding made from poly(vinyl chloride) plasticized with bis(2-ethylhexyl...

A derivative of a known Ca2+-selective ionophore, ETH 129, was synthesized to contain polymerizable acrylic moiety (AU-1) and covalently grafted into methyl methacrylate-co-decyl methacrylate polymer matrix. The containing AU-1 prepared via simple one-step homogeneous polymerization method. It exhibited mechanical properties suitable for the fabrication plasticizer-free ion-selective membrane electrodes bulk optode films by solvent-casting spin-coating techniques, respectively. segmented...