Abstract Terahertz (THz) technologies have become a focus of research in recent years due to their prominent role envisioned future communication and sensing systems. One the key challenges facing field is need for tools enable agile engineering THz wave fronts. Here, we describe reconfigurable metasurface based on GaN technology with an array-of-subarrays architecture. This subwavelength-spaced array, under control 1-bit digital coding sequence, can switch between enormous range possible...

As microbial contamination is becoming more and serious, antibacterial agents play an important role in preventing removing bacterial pathogens from pollution our daily life. To solve the issues with water solubility stability of PVP-I2 (povidone-iodine) as a strong agent, we successfully obtain hydrophobic povidone-iodine nanoparticles (povidone-iodine NPs) by two-step method related to advantage nanotechnology. First, synthesis poly(N-vinyl-2-pyrrolidone-co-methyl methacrylate)...

Graphdiyne (GDY) as an emerging 2D carbon-network nanomaterial possesses many fascinating properties that lead to numerous exciting applications, but the use of GDY and its derivatives in antibacterial field has not yet been discovered. In this study, we first report on evaluation graphdiyne oxide (GDYO) agents propose mechanisms GDY-based nanomaterials. GDYO synthesized via surface oxidation GDY, activity compared with through a series tests. Surprisingly, endowed inert superior capability...

Abstract Antibiotic resistance poses severe health threats throughout the world. Exploring new antibiotics is widely recognized as an effective strategy to counter antibiotic resistance, but will eventually lead further when drugs are misused or overused. An alternative tactic may be antibacterial regulation on demand. Here, we show experimentally and theoretically that unstable black phosphorus nanosheets (BPNs) can function agents without causing resistance. This relies unprecedented...

Abstract Most injectable hydrogels used in biomedical engineering have unsatisfactory and untunable mechanical properties, making it difficult to match them with the strengths of different tissues organs, which can cause a series adverse consequences such as immune rejection soft tissue contusion. In this contribution, dopamine‐modified hyaluronic acid (HA‐DA) is developed backbone for an hydrogel using catechol–Fe 3+ coordination crosslinking strategy. Due dynamic physical crosslinking, be...

Sulfur cathode materials in lithium–sulfur chemistry suffer from poor electronic conductivity and shuttle of lithium polysulfides during charging discharging. Serious effects the sluggish redox reaction kinetics severely limit development batteries with high sulfur loading, impeding practical process batteries. Herein, a honeycomb73x02010;structured CoF 2 @C is introduced as functional layer adhered to separator, achieving rapid lithium‐ion transport, catalytic activity, suppressed effect...

Conductive hydrogels have shown great potential in wound healing and skin tissue engineering, owing to their electroactive, mechanical, chemical properties. However, it still remains as a challenge incorporate other functions into conductive hydrogels, such antibacterial ability, controllable drug release, biodegradability. In this study, black phosphorus-based hydrogel (HA-DA@BP) is prepared by an amidation reaction coupled with coordination of Fe3+ -catechol. The could be changed from the...

Cobalt-free (Co-free) and nickel-rich (Ni-rich) cathode materials have attracted significant attention undergone extensive studies due to their affordability superior energy density. However, the commercialization of these Co-free is hindered by challenges such as cation disorder, irreversible phase changes, inadequate high-voltage performance. To overcome challenges, a ternary material Mg/Al double-pillared LiNiO2 (NMA) synthesized via wet-coating lithiation-sintering technique proposed....

Abstract Background Although various anti-inflammatory medicines are widely recommended for osteoarthritis (OA) treatment, no significantly clinical effect has been observed. This study aims to examine the effects of vitamin B6, a component that reported be capable alleviating inflammation and cell death in diseases, on cartilage degeneration OA. Methods Collagen-induced arthritis (CIA) mice model were established severity OA was determined using Osteoarthritis Research Society International...

Monoclinic crystals of Tm-doped KLu(WO <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$_4$</tex> ) xmlns:xlink="http://www.w3.org/1999/xlink">$_2$</tex> were grown with high crystalline quality for several dopant concentrations. The relevant spectroscopic properties the xmlns:xlink="http://www.w3.org/1999/xlink">$^3$</tex> F xmlns:xlink="http://www.w3.org/1999/xlink">$_4 rightarrow ^3$</tex> H...

Malignant tumors are often accompanied by increased risk of hematological abnormalities. However, few studies have reported any prognostic impact preoperative thrombocytosis, leukocytosis and anemia in epithelia ovarian cancer (EOC). This study aimed to investigate parameters for anemia, thombocytosis relation established factors survival EOC cases. A total 816 Chinese women treated were retrospectively included the focusing on relationship between hemoglobin, leukocyte platelet counts, a...

Tumor-stroma ratio (TSR) has recently been identified as a promising prognostic parameter for several solid tumors. This study aimed to evaluate the role of TSR in epithelial ovarian cancer (EOC) and 838 EOC patients were enrolled this study. was estimated on hematoxylin-and-eosin-stained tissue sections from most invasive part primary tumor. Patients classified stroma-rich or stroma-poor according proportion stroma ≥50% <50%. Chi-square test analysis revealed that significantly associated...

The AURELIA trial demonstrated that adding Bevacizumab to chemotherapy significantly improved progression-free survival (PFS) for platinum resistant recurrent ovarian cancer. Recently, immunotherapy also presented potential anti-tumor effects in several malignant solid tumors. This study aimed investigate whether combining anti-PD-L1 Atezolizumab with BEV may have a synergistic effect and enhance the efficacy of both treatments cisplatin epithelial cancer (CREOC). We retrospectively analyzed...

We report an approach to efficiently generate terahertz radiation from a combined periodic structure. The proposed configuration is composed of two metallic slit arrays deliberately designed with different length, width and depth. found that the combination could provide special electromagnetic modes, which exhibit nonradiative property above surface one array radiative inside other one. An electron beam holding proper energy resonate those modes strong directional radiations in regime,...

Biomaterial-associated infections caused by bacterial contamination and the subsequent formation of biofilms on surfaces are challenges faced our healthcare system. In this work, povidone-iodine-functionalized fluorinated copolymers with stable antibacterial, antibiofilm, antifouling activities were designed prepared a two-step synthesis. First, series poly(hexafluorobutyl methacrylate-co-N-vinyl-2-pyrrolidone), i.e., P(HFBMA-NVP), synthesized radical copolymerization at different feed...

Panzhihua City is a typical agricultural-forestry-pastoral and ecologically sensitive city in China. It also an important ecological defense the upper Yangtze River. has abundant mineral resources, including vanadium, titanium, water supplies. However, environmental problems emerge due to excessive development of mining, agriculture, animal husbandry, other non-natural urban economies. Therefore, scientific understanding spatio-temporal changes eco-environment critical for protection,...

Improving the specific capacitance and energy density of a fiber-shaped supercapacitor (FSSC) is critical to its applications as an storage device for advanced smart wearable electronics. In this paper, heterogeneous poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/reduced graphene oxide/molybdenum disulfide (PEDOT:PSS/rGO/MoS2) fiber was prepared achieve high-performance durable electrode FSSC. As indicated, pseudocapacitive MoS2 in situ grown on highly conductive acid-treated...

An unprecedented straightforward reductive amidation of chloroalkanes with nitroarenes was readily accomplished by merging iron catalysis visible-light photoredox catalysis.

In the realm of emergency disaster relief, it is paramount to attain a thorough comprehension semantic information associated with local scene for strategic rescue path planning and immediate operations affected individuals. Unmanned aerial vehicle (UAV) networks are widely utilized rapid data collection in aftermath disasters due their flexibility maneuverability, assisting decision-making. However, some disasters, such as seismic events floods have disrupted initially structured ground...