In recent years, various auxetic material structures have been designed and fabricated for diverse applications that utilize normal materials follow Hooke's law but still show the properties of negative Poisson's ratios (NPR). One potential application is body protection pads are comfortable to wear effective in protecting parts by reducing impact force preventing injuries high-risk individuals such as elderly people, industrial workers, enforcement military personnel, athletes. This paper...

A robust electroosmotic (EO) pump is developed using electroactive polyaniline (PANI):poly(4-styrene sulfonate) (PSS)/carbon cloth (CC) as an electrode material.PANI:PSS was electropolymerized on a flexible, porous, and conductive CC cyclic voltammetry technique characterized by several physicochemical techniques.The results confirmed the formation of PANI PSS CC.A linear relationship (regression coefficient (R 2 ) ≥ 0.99) observed between applied potential peak current, highlighting nature...

We have investigated resistive switching phenomena in NiO nanowires fabricated using anodized aluminum oxide membranes. show that exhibit reversible and bistable behaviors like those thin films. However, compared to films, electroforming takes place at much lower electric fields. Thus, a 1-μm-long nanowire device operates under 2.5V even 25-μm-long array 20V. These results suggest the possibility of developing nanowire-based resistance memory devices.

NIRF imaging of carbon nanodots derived from tire soot was clearly visualized in glioma vitro and vivo.

Using the excellent emission properties of carbon nanodots, we have developed an aptamer-conjugated imaging probe for targeting cancers.

We report electrically refreshable carbon-nanotube (CNT)-based gas sensors with a field effect transistor (FET) structure. The can be refreshed by applying negative gate voltage pulse in NO2 and positive NH3. Furthermore, the temporal response of conductance to is observed dependent on species, but independent concentration. These results show possibility distinguishing species using CNT-FET sensors.

We have developed carbon nanotube-based dual-mode biosensors with a metal semiconductor field effect transistor structure on quartz substrate. DNA hybridization occurring the Au top gate can be detected by simultaneously measuring change in electrical conductance and surface plasmon resonance (SPR). Since SPR measurements offer high sensitivity reliability, respectively, this biosensor is expected to provide both of these features.

Abstract Palladium nanoparticles were immobilized on PNIPAM:4‐VP hydrogels. The resultant püalladium catalysts showed high activities for Suzuki–Miyaura coupling reactions in water. recyclability of the was improved by using 4‐VP as a co‐monomer hydrogels due to reduced Pd leaching during reactions.

Hollow-structured nanomaterials are presented as an outstanding sensing platform because of their unique combination high porosity in both the micro- and nanoscale, biocompatibility, flexible template applicability. Herein, we introduce a bacterial skeleton method allowing for cost-effective fabrication with nanoscale precision. As proof-of-concept, fabricated hollow SnO2 hemipill network (HSHN) Pt-functionalized (HPN). A superior detecting capability HPN toward acetone, diabetes biomarker,...

MicroRNAs (miRNAs, miRs) are recognized as regulators of gene expression related to cellular development and diseases. In this study, we developed a carbon nanodot (C-dot)-based miR124a molecular beacon (miR124a CMB). The C-dots were purified from candle soot (cC-dots) by thermal oxidation. double-stranded DNA oligonucleotide containing binding site black hole quencher 1 sensing oligo) was further conjugated with the cC-dots form CMB. P19 cells incubated CMB sense during neurogenesis....

In this work, the chronoamperometry-based redox cycling of 3,3',5,5'-tetramethylbenzidine (TMB) was performed by using interdigitated electrode (IDE). The signal obtained from two sequential chronoamperometric profiles: (1) with generator at oxidative potential TMB and collector reductive TMB, (2) TMB. (dual mode) showed a sensitivity 1.49 μA/OD, efficiency estimated to be 94% (n = 10). sensitivities conventional same chronoamperometry single working (single were 0.67 μA/OD 0.18...

The polyaniline–carbon nanotube composite thin film bolometric near-infrared sensor exhibited more than a two orders of magnitude sensitivity enhancement over both the polyaniline and carbon network NIR sensor. We also investigated mechanism effectively enhanced material demonstrated that it is synergistic effect due to higher heat generation nanotubes temperature coefficient resistance polyaniline.

Fabrication of one dimensional metal nanomaterials offers many beneficial aspects due to their unique size- and shape-dependent characteristics. However, facile fabrication a robust nanostructure has still remained great challenge. Here, we developed new synthetic route one-step electrochemical deposition silver nanograss without the assistance template. By applying an overpotential −2.0 V (vs. Ag/AgCl) under aqueous alkaline conditions, with slight tilt in randomly oriented direction was...

Pt nanocubes with a size of below 10 nm were synthesized by using various surface-capping agents polyvinylpyrrolidone (PVP), tetradecyltrimethylammonium bromide (TTAB), and oleylamine high shape purity. TGA XPS data revealed the amount characteristics residual organic molecules on surface nanocubes. Chemical thermal stability these nanoparticles examined observing change cubic upon heating under different chemical environments N2, H2 air. The such as rounding vertexes or aggregation depended...

We investigated scaling behaviors for NiO nanowire array devices with different diameters. Plots of the reset current and third harmonic generation signal as a function on-state resistance (R0) show all devices, such film devices. However, exponents were from those hence fractal dimension estimated exponent was smaller than This decrease in attributed to confinement conducting filaments within each nanowire.

Two-dimensional transition-metal dichalcogenides semiconductors are attractive materials for optoelectric devices because of their direct energy bandgap and transparency. To investigate the feasibility transparent p-n junctions, we have fabricated heterojunctions consisting WSe <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> MoS since with proper electrode metals exhibit p-type n-type behaviors, respectively. These showed rectifying...