bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis and Characterization of Multifunctional Metal‐Organic Framework (Ni‐ZIF‐67) Decorated Waterborne Polyurethane (Ni‐ZIF‐67/WPU) Nanocomposites: Sonochemical Approach
Authors: Borse Rahul Anil , Kale Manoj B. , Hakke Vikas S. , Pandi Narsimha , Sonawane Shirish H. , Wang Yaobing 
Published: December 2022

AbstractThis work investigates the effect of a modified nickel‐doped metal‐organic framework (Ni‐ZIF‐67) as a filler on thermal, mechanical, and water vapor permeability properties of environmentally friendly waterborne polyurethane (WPU). The facile and greener ultrasound (sonochemical) technique is developed to prepare multifunctional Ni‐ZIF‐67@WPU nanocomposites, exhibiting superior crystallinity and uniform distribution. The resultant Ni‐ZIF‐67 nanoparticles and Ni‐ZIF‐67@WPU films are characterized by various techniques, including powder XRD, FE‐SEM, FTIR, TGA, UTM, contact angle, and antibacterial properties. Ni‐ZIF‐67@WPU nanocomposites exhibited excellent three‐fold mechanical performance (tensile strength ≈22 MPa) at a very low 5 wt.% filler loading and high thermal stability compared to pristine WPU. In addition, Ni‐ZIF‐67@WPU exhibited optimum water vapor permeability performance at 5.0 wt.% filler with the potential antibacterial application. Demonstrate that the rapid and facile synthesis approach can enhance the interaction of filler and matrix, high surface area, and tuneable pore size of filler material. This new insight has a new green approach for fabricating advanced nanocomposites toward practical utilization.
Synthesis of Core–Shell Magnetic Nanoparticles Containing Ultrasmall Domains of Silicalite‐1
Authors: Piva Diógenes Honorato , Piva Roger Honorato , Ghojavand Sajjad , Pautrat Alain , Debost Maxime , Urquieta‐González Ernesto A. , Mintova Svetlana 
Published: December 2022

AbstractSynthesis of core–shell nanostructures with magnetic core and zeolitic shell is an ongoing challenge. Herein, a strategy is presented for preparation of γ‐Fe2O3@mesoporous silica (mSiO2) core–shell nanoparticles containing ultrasmall domains of silicalite‐1 in the shell (γ‐Fe2O3@mSiO2/silicalite‐1). The strategy consists in a solid‐state reorganization of the precursor amorphous mSiO2 shell into silicalite‐1 using a tetrapropylammonium hydroxide (TPAOH) as an organic structure‐directing agent (OSDA) under mild hydrothermal (HT) conditions. The formation of silicalite‐1 crystalline domains is investigated through the detailed characterization of products obtained at different times of HT treatment by X‐ray diffraction (XRD), Raman spectroscopy, Fourier‐transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) with energy dispersive X‐ray spectroscopy (EDS), transmission electron microscopy (TEM), and nitrogen physisorption. By careful tuning the time of HT treatment, the γ‐Fe2O3@mSiO2/silicalite‐1 nanostructures are prepared. Benefitting from the unique mesopores/microporous structure formed, the γ‐Fe2O3@mSiO2/silicalite‐1 core–shell nanostructure shows superior adsorption capacity to remove aniline from aqueous solutions than the γ‐Fe2O3@mSiO2. Moreover, the γ‐Fe2O3@mSiO2/silicalite‐1 nanostructure is easily separated from aqueous solutions using magnetic separation technique within 1 min.
Plasma‐Assisted Surface Modification and Heparin Immobilization: Dual‐Functionalized Blood‐Contacting Biomaterials with Improved Hemocompatibility and Antibacterial Features
Authors: Özgüzar Hatice Ferda , Evren Ebru , Meydan Ahmet Ersin , Kabay Gozde , Göçmen Julide Sedef , Buyukserin Fatih , Erogul Osman 
Published: December 2022

AbstractThe inferior hemocompatibility or antibacterial properties of blood‐contacting materials and devices are restraining factors that hinder their successful clinical utilization. To highlight these, a plasma‐enhanced modification strategy is favored for surface tailoring of an extensively used biomaterial, polypropylene (PP). The surface activation of the PPs is achieved by oxygen plasma etching and subsequent surface functionalization through amine‐rich precursor mediated coating by plasma glow discharge. After optimum plasma processing parameters are decided, heparin (anticoagulant and antithrombic drug) is either attached or covalently conjugated on the PPs’ surfaces. The aminated films produced at 75 W plasma power with 15 min exposure time are highly hydrophilic (34.72 ± 5.92°) and surface active (65.91 mJ m−2), facilitating high capacity heparin immobilization (≈440 µg cm−2) by covalent linkage. The kinetic‐blood coagulation rate and protein adhesion amount on the plasma‐mediated heparinized PPs are decreased about tenfold and 15‐fold, and platelet adhesion is markedly lowered. In addition, heparinized‐PP surfaces comprise superior antibacterial activity against gram‐positive/‐negative bacteria conveyed particularly by contact‐killing (99%). The heparin‐coating did not cause cytotoxicity on fibroblast cells, instead enhanced their proliferation, as shown by the (3‐(4,5‐Dimethylthiazol‐2‐yl)‐2,5‐Diphenyltetrazolium Bromide) assay. Overall, this simple methodology is highly proficient in becoming a universal strategy for developing dual‐functionalized blood‐contacting materials.
Engineering Water Stable Perovskite and Plasmonic‐Perovskite Nanocomposites: A Step toward Unleashing the True Potential of Perovskite Catalysis
Authors: Aggarwal Pooja , Ahlawat Monika , Govind Rao Vishal 
Published: December 2022

AbstractDespite garnering so much research interest, the potential technological developments of perovskites are limited due to the instability of perovskites in polar solvents. Here, it is discovered that upon exposure to ethanol, the initial cubic cesium lead bromide nanocrystals (CsPbBr3 NCs) undergo a phase transformation from the cubic phase to the orthorhombic phase. Further exposure of the orthorhombic phase to water leads to the formation of CsPbBr3 perovskite nanoaggregates, which shows higher stability in water compared to pristine CsPbBr3 NCs. A systematic investigation of the interfaces using various spectroscopic techniques demonstrating the self‐assembly process and phase transformation is presented. The increased stability of ethanol‐treated CsPbBr3 NCs is attributed to the ethoxide ions adsorption on the CsPbBr3 interface, owing to strong affinity of alkoxide ions to Pb2+. Effective surface passivation leads to enhanced charge‐carrier separation, a prerequisite to an effective photocatalyst. Ethoxide‐stabilized CsPbBr3 in water is utilized to reduce Au3+ to Au0 to synthesize water‐stable Au‐CsPbBr3 nanocomposites. The formation of hybrid plasmonic metal‐perovskites nanocomposite influences the perovskite's excited state charge carrier dynamics. This opens the possibilities of utilizing the synergistic effects of the light‐harvesting properties of plasmonic nanomaterials with the catalytic attributes of perovskite materials and controlling the interface properties by tuning plasmon–exciton coupling.
Atomic‐Scale Observation of the Local Structure and 1D Quantum Effects in vdW Stacking Mo6Te6 Nanowires
Authors: Li Yuang , Wu Di , Wang Dongli , Zhang Yinuo , Min Tai , Pan Yi 
Published: December 2022

AbstractThe sub‐nanometer‐diameter transitional‐metal chalcogenides (M6X6) molecular wires are ideal 1D quantum systems. The electronic properties of such system are very sensitive to the interface interaction and local imperfection. Here, the atomic structure and local electronic structure of van der Waals (vdW) stacking Mo6Te6 nanowires fabricated by using molecular beam epitaxy are reported. Atomic‐resolution scanning tunneling microscopy measurement shows that the vdW interface distance varies from 0.71 to 1.05 nm when Mo6Te6 wires stacked on graphite, MoTe2, and Mo6Te6 surfaces. Scanning tunneling spectroscopy confirmed the 1D quantum effect of van Hove singularity and Tomonaga–Luttinger liquid behavior at 77.8 K. Single Te vacancies and their effect to the local structure distortion are observed as well. These observations shed light on the local structure and quantum effects of the M6X6 nanowire materials, which may find applications in future electronic devices.
Aerosol Jet Printing of a Benzocyclobutene‐Based Ink as Adhesive Material for Wafer Bonding Application
Authors: Iervolino Filippo , Baldini Angelica , Gelmi Ilaria , Castoldi Laura , Suriano Raffaella , Levi Marinella 
Published: December 2022

AbstractAerosol jet printing (AJP) is an emerging additive manufacturing technology that is gaining increasing attention in the electronic field. Several studies have been carried out on the AJP of conductive, semiconductive, and dielectric polymers for electronic applications. However, wafer bonding is an application that is still uncovered by literature. Therefore, in this work, the AJP of benzocyclobutene (BCB) as a polymeric adhesive for wafer bonding is presented for the first time. A thorough characterization of the processing parameters is carried out to identify the most ideal conditions for printing at a relatively high speed. Then, square patterns are printed, proving the versatility of the AJP technology in terms of the reachable thickness of the deposited BCB patterns. Complex patterns with a resolution of ≈60 µm are also printed. The bonding properties of the BCB are characterized from a morphological and mechanical point of view. In particular, the shear strength of the BCB coatings deposited with AJP is ≈39 MPa and it is comparable with the shear strength of BCB coating deposited by spin‐coating. Consequently, AJP represents a valid alternative for the deposition of polymeric adhesive for wafer bonding.
Titanium Dioxide Covalently Immobilized Citric Acid (TiO2‐CA) Nanohybrid Coating of Neurovascular Flow Diverter to Improve Antithrombogenic and Pro‐Endothelialization Properties
Authors: Qian Junyu , Zhang Zhaozhao , Gao Fei , He Junxi , Hou Jiaming , Su En , Zeng Ziyi , Wang Wenyuan , Chen Yingqi , Zhang Wentai , Hu Xuebin , Wan Guojiang 
Published: December 2022

AbstractBraided neurovascular flow diverters (FDs) have revolutionized the treatment of aneurysms. However, dual antiplatelet therapy is mandatory for patients with FDs, which increases the risk of adverse side effects like bleeding complications. Surface modification would be of critical relevance to improve the biocompatibility and therefore clinical performance of FDs. Herein, a titanium dioxide (TiO2) covalently immobilized citric acid (CA) nanohybrid coating is fabricated on nitinol (NiTi) braided FDs by liquid phase deposition and dip‐coating, to inhibit thrombosis and promote re‐endothelialization. The CA molecules are covalently bound onto the pre‐deposited TiO2 nanoparticulate coating. The coating has a unique homogenously nanostructured morphology as well as super‐hydrophilicity. Both in vitro and in vivo results verify that the coated samples inhibit platelets and fibrinogen adhesion, delay coagulation time, and concomitantly promote re‐endothelialization. Such appealing properties are ascribed to the nature of CA and TiO2 per se as well as the nanostructured morphology. The present strategy may not only provide a new avenue to surface‐modify braided neurovascular FDs but also shed light on advanced nanohybrid materials for biomedical applications among others.
Rapid Conductometric Detection of SARS‐CoV‐2 Proteins and Its Variants Using Molecularly Imprinted Polymer Nanoparticles
Authors: Perera Ganganath S. , Rahman Md. Ataur , Blazevski April , Wood Alasdair , Walia Sumeet , Bhaskaran Madhu , Sriram Sharath 
Published: December 2022

AbstractSevere acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) biosensors have captured more attention than the conventional methodologies for SARS‐CoV‐2 detection due to having cost‐effective platforms and fast detection. However, these reported SARS‐CoV‐2 biosensors suffer from drawbacks including issues in detection sensitivity, degradation of biomaterials on the sensor's surface, and incapability to reuse the biosensors. To overcome these shortcomings, molecularly imprinted polymer nanoparticles (nanoMIPs) incorporated conductometric biosensor for highly accurate, rapid, and selective detection of two model SARS‐CoV‐2 proteins: (i) receptor binding domain (RBD) of the spike (S) glycoprotein and (ii) full length trimeric spike protein are introduced. In addition, these biosensors successfully responded to several other SARS‐CoV‐2 RBD spike protein variants including Alpha, Beta, Gamma, and Delta. Our conductometric biosensor selectively detects the two model proteins and SARS‐CoV‐2 RBD spike protein variant samples in real‐time with sensitivity to a detection limit of 7 pg mL–1 within 10 min of sample incubation. A battery‐free, wireless near‐field communication (NFC) interface is incorporated with the biosensor for fast and contactless detection of SARS‐CoV‐2 variants. The smartphone enabled real‐time detection and on‐screen rapid result for SARS‐CoV‐2 variants can curve the outbreak due to its ability to alert the user to infection in real time.
A Self‐Powered Flow Velocity Sensing System Based on Hybrid Piezo‐Triboelectric Nanogenerator
Authors: Ge Chengpeng , Ma Jijie , Hu Yili , Li Jianping , Zhang Yu , He Xinsheng , Cheng Tinghai , Wen Jianming 
Published: December 2022

AbstractMonitoring the flow velocity of an urban ventilation system has great significance for air circulation and air quality. In this study, a self‐powered flow velocity sensor based on hybrid piezo‐triboelectric nanogenerator (P‐TENG) is proposed. The flow velocity is detected by a triboelectric nanogenerator (TENG) working in freestanding triboelectric‐layer mode. A polyvinylidene difluoride (PVDF) fixed on the galloping beam converts the kinetic energy of the moving air into electricity. Both the TENG and PVDF are driven by the galloping vibration of a bluff body arisen from the air flow of ventilation. The structure of the P‐TENG is provided and a prototype is fabricated. The experiments indicate that the PVDF can generate 2.4 µW of energy across an external resistance of 60 MΩ. Flow velocity ranging from 4 to 10 m s−1 can be well detected by the proposed nanogenerator. Moreover, the P‐TENG is applicable to a critical environment with humidity up to 75%. Demonstration is carried out on a wind tunnel, illustrating good reliability as the frequency remains stable for the whole duration. Compared with the commercial anemometer, the error rate is under 1% after calibration. The proposed P‐TENG promises in low cost, self‐powered flow velocity monitoring in urban ventilation systems.
Effect of Mirror Quality on Optical Response of Nanoparticle‐on‐Mirror Plasmonic Nanocavities
Authors: Wang Zhenxin , Liu Lufang , Zhang Di , Krasavin Alexey V. , Zheng Junsheng , Pan Chenxinyu , He Enxing , Wang Zifan , Zhong Shengchengao , Li Zhiyong , Ren Mengxin , Guo Xin , Zayats Anatoly V. , Tong Limin , Wang Pan 
Published: December 2022

AbstractAs an essential part of nanoparticle‐on‐mirror (NPoM) plasmonic nanocavities, metal mirrors play an important role not only in determining the optical response of the nanocavities but also their application performance. Here the effect of mirror quality on the optical response of nanosphere‐on‐mirror (NSoM) and nanocube‐on‐mirror (NCoM) nanocavities is experimentally studied. Polycrystalline sputtered gold films (SGFs), template‐stripped gold films (TSGFs), and single‐crystalline gold microflakes (GMFs) are investigated and compared. Due to the great improvement in the surface roughness that can minimize fluctuations in the gap morphology, NSoM and NCoM nanocavities formed on smooth TSGFs and GMFs have a better cavity‐to‐cavity homogeneity in the scattering spectrum than those formed on comparably rougher SGFs. In addition, there is an obvious change in the spectral positions of the resonance modes of NSoM and NCoM nanocavities formed on SGFs due to the variation in the gap morphology, which is reproduced very well by theoretical calculations based on measured dielectric functions of the gold films. Finally, due to the reduction in electron scattering losses from SGFs to TSGFs and GMFs, an increase in the quality factors and scattering intensities of the resonance modes is observed for nanocavities formed on the corresponding films.
Near‐Infrared Light Triggered Intelligent Nanoplatform for Synergistic Chemo‐Photodynamic Therapy of Tumor
Authors: Qian Yanrong , Chen Fangman , Wang Man , Sun Qianqian , Shao Dan , Li Chunxia 
Published: December 2022

AbstractChemo‐photodynamic therapy nanodelivery systems provide a potential strategy to enhance anticancer effect. However, the treatment efficiency of stimuli‐responsive nanotheranostics remains a challenge owing to off‐target properties, poor tissue penetration, and slow drugs release. Herein, di‐selenide‐bridged mesoporous silica (Se‐Se‐mSiO2) is introduced into a near‐infrared (NIR) light triggered and tumor microenvironment (TME)‐activated intelligent nanoplatform (UCNPs@mSiO2‐Ce6@Se‐Se‐mSiO2(DOX)@HA (UCSSDH)) realizing burst drug release on demand. Typically, the UCSSDH actively targets cancer cells and accumulates in tumor site through hyaluronic acid (HA). Then, under the irradiation of 980 nm NIR light, the upconverted 650 nm emission light activates photosensitizer Ce6 to produce the singlet oxygen (1O2) for photodynamic therapy (PDT). More importantly, 1O2 further cleaves di‐selenide bonds which are sensitive to reactive oxygen species (ROS), driving the rapid degradation of Se‐Se‐mSiO2 accompanied by the burst release of doxorubicin (DOX). Consequently, UCSSDH achieves efficient chemo‐photodynamic therapy of tumors. Last but not least, the upconversion nanoparticles (UCNPs) perform upconversion luminescence (UCL) imaging to monitor the drugs delivery. Collectively, an intelligent drug delivery system integrating therapeutic, monitoring, and targeting is exploited for NIR light‐triggered synergistic tumor therapy. This study broadens fresh vision into the development of controlled drug release and provides a momentous thought for potential clinical cancer therapy.
High‐Performance Organic Photosynaptic Transistors Using Donor−Acceptor Type and Crosslinked Core−Shell Nanoparticles as a Floating Gate Electret
Authors: Yang Wei‐Chen , Ercan Ender , Lin Yan‐Cheng , Chen Wei‐Cheng , Watanabe Yu , Nakabayashi Kazuhiro , Lin Bi‐Hsuan , Lo Chen‐Tsyr , Mori Hideharu , Chen Wen‐Chang 
Published: December 2022

AbstractPhotosynaptic transistor is considered to be a potential candidate for breaking the von Neumann bottleneck in photo‐communication field. Herein, a series of donor−acceptor type and crosslinked core−shell nanoparticles are designed and applied in phototransistors as a charge‐trapping electret. The outer shell is composed of poly(ethylene glycol) methyl ether methacrylate (PEGMA); while the inner core comprises donors of thiophene and bithiophene (2T) and acceptors of benzothiazole (BT), naphthalenediimide (NDI), and hexafluorobenzene‐naphthalenediimide (FB‐NDI). It is found that the core−shell and donor−acceptor design play an important role in the charge trapping, photoresponse, and the corresponding device performance. Accordingly, the phototransistor comprising the crosslinked core−shell nanoparticles with a donor of 2T and an acceptor of BT (PV2T‐BT) produced the highest memory ratio of 105 over 104 s at a high operating voltage of −40 V. Meanwhile, the same device presented the highest paired‐pulse facilitation ratio of 168% at a medium operating voltage of −1 V, and an ultra‐low energy consumption of 0.0324 fJ at a low operating voltage of −1 µV. The findings in this study provide a new perspective on material design for phototransistor devices.
Enhanced Durability and Robustness of Triboelectric Nanogenerators with Blade‐Enclosed Structure for Breeze Energy Harvesting
Authors: Liu Yuhe , Zhu Mingkang , Nan Donghong , Li Xiang , Wang Yuqi , Su Wenhai , Wang Zhong Lin , Cheng Tinghai 
Published: December 2022

AbstractIn smart agriculture, lots of sensors are widely distributed in farmland with a complex environment. The methods of powering these sensors have attracted extensive attention, of which harvesting the breeze energy abundant in farmland is a good way. Herein, the triboelectric nanogenerator with blade‐enclosed structure (BE‐TENG) is proposed to enhance the durability and robustness. The device achieves a low start‐up wind speed of 1.5 m/s due to the structure based on the horizontal axis wind wheel and can output an open‐circuit voltage of 360 V. Importantly, after 10 hours of continuous operation, the voltage signal of the BE‐TENG has almost no attenuation, and its output performance can maintain stability even in a high humidity environment of 90%, showing strong durability and robustness. Experiments show that under breeze conditions, the BE‐TENG can drive almost 600 light‐emitting diodes and successfully power a soil temperature sensor. In addition, it can drive a hygrothermograph in a simulated rainfall environment, realizing the monitoring of ambient temperature and humidity. This work can convert breeze energy in farmland into electricity needed for agricultural sensors, which provides a new strategy for distributed energy supply required for smart agriculture.
Acoustically‐Induced Water Frustration for Enhanced Hydrogen Evolution Reaction in Neutral Electrolytes
Authors: Ehrnst Yemima , Sherrell Peter C. , Rezk Amgad R. , Yeo Leslie Y. 
Published: December 2022

AbstractA novel strategy utilizing high‐frequency (10 MHz) hybrid sound waves to dramatically enhance hydrogen evolution reactions (HER) in notoriously difficult neutral electrolytes by modifying their network coordination state is presented. Herein, the practical limitations associated with existing electrolyzer technology is addressed, including the need for highly corrosive electrolytes and expensive electrocatalysts, by redefining conceptually‐poor hydrogen electrocatalysts in neutral electrolytes. The improvement in HER performance is attributed to the unique capability of the intense local electromechanical coupling arising from the acoustic‐forcing to ‘frustrate’ the tetrahedrally‐coordinated hydrogen bond network of water molecules at the electrode–electrolyte interface, resulting in the generation of a high concentration of “free” water molecules that are more readily able to access catalytic sites on the unmodified polycrystalline electrode. Together with the other synergistic effects that accompany the acoustic excitation (e.g., hydronium ion generation, convective relaxation of diffusion mass transfer limitations, and prevention of bubble build‐up and their removal from the electrode), the resultant overpotential reduction of 1.4 V at −100 mA cm−2 and corresponding 14‐fold increase in current density, together with a net‐positive energy saving of 27.3%, showcases the potential of the technology as a scalable platform for effectively enhancing the efficiency of green hydrogen production.
Food insecurity among those with disability: Cross‐survey comparison of estimates and implications for future research
Authors: Henly Megan , Brucker Debra L. , Coleman‐Jensen Alisha 
Published: December 2022

AbstractPeople with disabilities are at increased risk of food insecurity (FI). In the United States, the Current Population Survey is used to provide official FI estimates. Other federal surveys that include disability and FI measures as well as additional health, housing, nutrition, and functioning measures offer opportunities to examine determinants of FI more fully for people with disabilities. We estimate FI prevalence for people with disabilities across four surveys, finding that all sources identify disability as a risk factor for FI, with some variation in estimates. We identify policy‐specific areas each source could inform and suggest avenues for future research.