Biosensors based on field-effect transistors (FETs) have attracted much attention, as they offer rapid, inexpensive, and label-free detection. While the low sensitivity of FET biosensors bulk 3D structures has been overcome by using 1D (nanotubes/nanowires), latter face severe fabrication challenges, impairing their practical applications. In this paper, we introduce demonstrate molybdenum disulfide (MoS2), which provides extremely high at same time offers easy patternability device...

We present near-field Raman spectroscopy and imaging of single isolated single-walled carbon nanotubes with a spatial resolution approximately 25 nm. The origin the image contrast is confirmed by measured dependence scattering signal on tip-sample distance unique polarization properties. method used to study local variations in spectrum along nanotube.

Transition metal dichalcogenides (TMDs), belonging to the class of two-dimensional (2D) layered materials, have instigated a lot interest in diverse application fields due their unique electrical, mechanical, magnetic, and optical properties. Tuning electrical properties TMDs through charge transfer or doping is necessary for various optoelectronic applications. This paper presents experimental investigation effect on TMDs, mainly focusing molybdenum disulfide (MoS2), by metallic...

It is critically important to develop actuator systems for diverse needs ranging from robots and sensors memory chips. The advancement of mechanical actuators depends on the development new materials rational structure design. In this study, we have developed a novel graphene electrochemical based rationally designed monolithic film with asymmetrically modified surfaces. Hexane O2 plasma treatment were applied opposite sides induce asymmetrical surface properties hence responses, responsible...

Graphene quantum dots (GQDs), single or few-layer graphenes with a size of only several nanometers, are new type (QDs) unique properties. The assembly QDs in geometrically well-defined fashion opens up opportunities to obtain access the full potential assembled by virtue collective properties ensembles. In current study, we present well-organized zero-dimensional (0D) functional GQDs into 1D nanotube (NT) arrays and demonstrate their remarkable as metal-free platform for efficient...

Copper-based interconnects employed in a wide range of integrated circuit (IC) products are fast approaching dead-end due to their increasing resistivity and diminishing current carrying capacity with scaling, which severely degrades both performance reliability. Here we demonstrate chemical vapor deposition-synthesized intercalation-doped multilayer-graphene-nanoribbons (ML-GNRs) better (more than 20% improvement estimated delay per unit length), 25%/72% energy efficiency at local/global...

Low-frequency noise is a significant limitation on the performance of nanoscale electronic devices. This especially important for devices based two-dimensional (2D) materials such as graphene and transition metal dichalcogenides (TMDs), which have atomically thin bodies and, hence, are severely affected by surface contaminants. Here, we investigate low-frequency transistors molybdenum disulfide (MoS2), typical example TMD. The measurements performed bilayer MoS2 channel show peak in...

Since the discovery of graphene in 2004, which proved existence 2-D crystals nature, layered materials also known as van der Waals solids have received extensive reexamination, especially single-layer and multilayer forms because their type structure unique properties that not only benefit many existing electronic components but enable novel device concepts design architectures. Numerous research efforts been invested these materials, enormous quantities results generated during past 14...

We provide a proof-of-principle demonstration of CARS endoscopy. The design utilizes single mode optical fiber with focusing unit attached to the distal end. Picosecond pump and Stokes pulse trains in near infrared are delivered through nearly unaltered spectral temporal characteristics at intensities needed for endoscopic images recorded by collecting epi-CARS signal generated sample raster scanning respect fiber. This endoscope prototype represents an important step towards situ chemically...

The rational assembly of quantum dots (QDs) in a geometrically well-defined fashion opens up the possibility accessing full potential material and allows new functions assembled QDs to be achieved. In this work, well-confined two-dimensional (2D) 3D carbon dot (CQD) honeycomb structures have been by electrodeposition oxygen-rich functional CQDs within interstitial voids assemblies SiO2 nanospheres, followed extraction cores with HF treatment. Although made from sized dots, CQD present solid...

In this paper, we first review the impressive properties of two-dimensional (2D) nanocrystals, primarily graphene and beyond-graphene 2D crystals, such as transition-metal dichalcogenides (TMDs), then highlight some applications uniquely enabled by these materials for designing next-generation low-power low-loss "green electronics". Key challenges crystals relevant to are discussed well.

Hypoxia-inducible factor-1 (HIF-1) has been reported to promote tumour radioresistance; therefore, it is recognised as an excellent target during radiation therapy. However, the inhibition of HIF-1 in unsuitable timing can suppress rather than enhance effect therapy because its anti-angiogenic increases radioresistant hypoxic fraction. In this study, we imaged changes activity after treatment with and/or inhibitor, YC-1, and optimised their combination. Hypoxic cells were reoxygenated 6 h...

The development of advanced actuator system strongly depends on the assorted use unique materials and rational structure design. In current work, a newly designed bilayer based graphene film which has undergone O2 plasma pretreatment conducting polymer polypyrrole (PPy) doped with small anions been presented. antithetic expansion–contraction mechanisms PPy films under certain positive or negative potential offer favorably synergetic function for driving excellent actuation response resultant...

Achieving green, low-carbon, and sustainable development in the Yangtze River Basin is an important part of promoting modernization agriculture rural areas. Based on panel data 19 provinces from 2002 to 2022, this article constructed a comprehensive evaluation system for agricultural economy–population development–ecological environment system. By using entropy-weighted TOPSIS method coupling coordination degree model, level status economy, population development, ecological were...

Superior strain-responsive graphene sheets with load tolerance have been demonstrated, which the maximum available strain response of up to 0.85%, four times higher than that for carbon nanotube based actuators. The high plus capability loading makes promising as building blocks fabricating advanced actuator systems.

The key requirements imposed on optical imaging techniques for the visualization of living biological specimens are noninvasiveness, chemical selectivity and high sensitivity. Coherent anti-Stokes Raman scattering (CARS) microscopy, which meets all three requirements, casts a new light vibrational microscopy paves way exciting applications.

The therapeutic effect of concurrent chemoradiotherapy with TS-1 has been confirmed in various solid tumors; however, the detailed mechanism action not yet fully elucidated. In present study, we identified hypoxia-inducible factor-1 (HIF-1) as one targets chemoradiotherapy. growth delay assays using a tumor xenograft non-small-cell lung carcinoma, H441, treatment enhanced single gamma-ray radiotherapy (14 Gy) and significantly delayed by 1.58-fold compared to alone (P < 0.01). An optical...

Paclitaxel (PTX) is an anticancer drug that effective against a wide range of solid tumors. The effect PTX on two human lung cancer cell lines, PC14PE6 and NCI‐H441 cells, was examined in orthotopically transplanted animal model with vivo imaging devise. Although effectively suppressed tumor growth improved survival rate NCI‐H441, it did not influence these PC14PE6. In vitro experiments confirmed cells are resistant to under normoxic conditions both lines were hypoxic conditions. It found...

Ordered arrays of quantum dots in two-dimensional (2D) materials would make promising optical materials, but their assembly could prove challenging. Here we demonstrate a scalable, site and size controlled fabrication monolayer molybdenum disulfide (MoS2), dot with nanometer-scale spatial density by focused electron beam irradiation induced local 2H to 1T phase change MoS2. By designing the 2D superlattice, show that new energy bands form where band gap can be pitch superlattice. The tuned...

To investigate whether PTEN can augment doxorubicin-induced apoptosis in PTEN-null Ishikawa cells. We previously demonstrated that cells do not possess functional protein because of truncations. Clones expressing the steady-state level from have been established and were used this study. Doxorubicin is a commonly anticancer drug endometrial carcinoma. The cytotoxic effect doxorubicin was evaluated using methyl thiazoleterazolium (MTT) assay. Hoechst 33258 staining to confirm induction...