Nano Energy
·
2021
·
IF 17.881
Kongshuo Ma,Guohua Qi,Bo Wang,Tengfei Yu,Ying Zhang,Haijuan Li,Shimeles Addisu Kitte,Yongdong Jin
Integrating the advantages of multiple therapies into one therapeutic platform is highly desired for augmented treatment effects. Herein, by modifying MLS and PEG on ZnO-nanorods/AuNPs nanoassemblies and coating with C6 cell membrane (MP-Au/ [email protected] ), we construct a novel ultrasound-activatable Au/ZnO-based tumor therapeutic platform (Trojan nanogenerators) and exploit it for effective tumor therapy. The developed MP-Au/ [email protected] nanogenerators worked well in multiple ways to achieve targeted electrostimulation and enhanced catalytic therapy of tumor, under ultrasound excitation. Firstly, the ZnO-nanogenerators will generate a piezoelectric potential difference of about 140 mV by ultrasonic excitation when targeted (by MLS moiety) to the mitochondria, disrupting the mitochondrial membrane potential for electrostimulation. Secondly, the nanogenerators enhances greatly multiple enzyme-like activities of Au nano-components for enhanced tumor catalytic therapy. Among them, the affinity and maximum reaction rate of peroxidase-like are increased by 34.99% and 53.36% respectively through kinetic analysis . Simulations and calculations revealed the roles of piezoelectric polarization electric field and displacement current in enhancing catalytic activity . The superior tumor suppressive effect of the MP-Au/ [email protected] was confirmed by in-vitro cell study and in-vivo C6 tumor-bearing mouse models. The developed ultrasound-activated nanogenerators will provide a unique electrostimulation tumor therapy strategy and opens a new way for improving the therapeutic efficacy of nanozymes.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Siping Wang,Zhaoyang Chen,Shala Bi,Zuyang Gao,Houjin Hu,Yi Liu,Bolong Zhang
Developing luminescent materials with lower cost and higher temperature sensitivity can provide more options for achieving precise optical thermometry. Therefore, the Tb 4 O 7 and Eu 2 O 3 co-doped BaO-ZnO-P 2 O 5 -B 2 O 3 glasses for optical thermometry were designed and synthesized using a high-temperature melting and quenching method. Due to the low optical basicity and the formation of defects of the glasses, the coexistence of Eu 2+ and Eu 3+ ions was achieved without the reducing agent. In Eu 2 O 3 doped glasses, the relative content variation of Eu 2+ and Eu 3+ ions was analyzed using high-resolution X-ray photoelectron spectroscopy. Emission spectra and fluorescence lifetimes confirmed the effective energy transfer processes between Eu 2+ and Tb 3+ or Tb 3+ and Eu 3+ , which play critical roles in the tunable white emission properties of the material. In the temperature-dependent fluorescence spectra, Eu 2+ ions exhibit significant thermal quenching behavior, which is key to achieving higher temperature sensitivity in optical thermometry. The Eu 2+ /Tb 3+ /Eu 3+ co-doped glasses were investigated for their optical temperature sensing behavior, utilizing the fluorescence intensity ratio techniques, within the temperature range of 273 K–498 K. The maximum absolute (at 498 K) and relative (at 273 K) sensitivity based on the fluorescence intensity ratio, were observed for Eu 2+ /Eu 3+ pairs were 0.145 K −1 and 1.46 % K −1 , respectively, outperforming the conventional Tb 3+ /Eu 3+ combination. Additionally, no significant fluctuation occurred during the repeated experiment. This work demonstrates that Eu 2+ /Tb 3+ /Eu 3+ co-doped BaO-ZnO-P 2 O 5 -B 2 O 3 glasses could be considered a promising candidate for optical thermometry.
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高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Xinjie Deng,Xin Huang,Haijuan Du,Shaobo Wang,Chaoyang Deng,Yazhong Qu,Xu Li,Zengbei Li,Xianyang Yue
Photocatalytic degradation technology is a promising strategy for the water treatment, which has many advantages such as saving time, cleanliness and environmental friendliness . In this study, ultra-low amount (0.01 wt%) of nano platinum (Pt) obtained from one-pot reduction method, was doped onto zinc oxide (ZnO) to form a lamellar nanoflower (Pt-ZnO). The characterization of Pt-ZnO was put forwards via scanning electron microscopy, high-angle annular dark-field scanning transmission election microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, liquid chromatography-mass spectrometry, etc. The highest degradation efficiencies of methylene blue (MB), rhodamine B (Rh B), methylene orange (MO), and acid black ATT (ATT) after being treated by Pt-ZnO for about 60 min reached 99.9%, 99.9%, 96.0%, and 97.8% respectively. While the MB and Rh B remained at a degradation efficiency of 99.9% even after being reused 5 times. Surprisingly, Pt-ZnO showed the removal rate of industrial effluent containing acid dyes was 93.9% and the chemical oxygen demand (COD) of wastewater was significantly reduced. Experimental results of LC-MS and free radical scavenging testing indicated MB was mainly split through the continuous open-ring cleavage of C-N bond in N, N-dimethylamine group by · OH, and finally decomposed into H 2 O and CO 2 achieving the decolorization .
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高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Yanci Zhang,Yujin Fan,Jiyuan Zhang,Yanxi Hu,Lili Duan,Zhanhui Wang,Yihong Wang,Jiansheng Cui,Liang Tian
The imbalanced expression of microRNA is related to many diseases and tumors, which can be used as a noninvasive biomarker to assist in the diagnosis, prognosis, and monitoring of cancer. A target conversion strategy-based electrochemical biosensor was developed by DNAzyme-cleavage dual cyclic signal amplification and the strand displacement reaction (SDR) to produce high electrochemical signals for microRNA-155 (miRNA-155) analysis. Thereinto, VSe2/multi-walled carbon nanotubes (MWCNTs) with high conductivity were applied as the electrode surface material to provide more active sites and accelerate electron transportation. Then, the excellent immobilization efficiency and large specific surface area of the ZnO@CuS nanoprobes were applied as a recognition molecule carrier. Furthermore, hexaammineruthenium(III) chloride (RuHex), with superior electrochemical redox activity, acted as the electroactive indicator by intercalating into double-helix DNA through electrostatic interaction, which produced high current responses in the presence of the target. Therefore, this miRNA-155 biosensing platform exhibited a relatively low limit of detection of 0.11 fM, ranging from 0.5 fM to 5 nM, and demonstrated excellent repeatability and stability. Hence, this platform appeared to possess favorable human serum detection capacity and be suitable for early cancer diagnostics.
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高影响因子
LANGMUIR
·
2025
·
IF 3.9
Jun Zhang,Chao Hou,He Yu,Md All Amin Newton,Binjie Xin,Tingxiao Li
To address persistent challenges in wound care, including exudate management, infection prevention, and healing monitoring, this study developed a multifunctional fiber dressing using electrospinning technology. The system integrates a patterned hydrophobic polylactic acid/zinc oxide (PLA/ZnO) inner layer providing antimicrobial protection and exudate drainage; a polyacrylonitrile/polydopamine (PAN/PDA) intermediate water transport layer enabling unidirectional exudate transfer; and an outer PAN-based functional membrane incorporating sodium polyacrylate (SPA), phenol red (PSP), and tetracycline hydrochloride (TCH) for controlled drug release and visual wound status monitoring. The comprehensive evaluation revealed exceptional performance: rapid exudate removal within 3.35 s, 96 h sustained antibacterial drug release (68.6% cumulative release), pH-responsive chromatic transition (yellow-to-red at pH 5–9), and significant antimicrobial efficacy against Escherichia coli and Staphylococcus aureus (inhibition zone diameters of 10 and 18 mm, respectively). The dressing exhibited a balance of mechanical strength (6.1 MPa tensile strength) and breathability (13.4 mm/s air permeability rate). By integrating three core functions─efficient exudate management, antimicrobial regulation, and intelligent healing monitoring─this multifunctional architecture demonstrates clinical applicability in postoperative care and chronic wound therapy.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Dongxue Xie,Sujuan Hu,Daihui Teng,Jingwen Ma,Baoling Wang,Mingshan Zhu
Micro-direct methanol fuel cells (μ-DMFCs) show the promising feasibility in the various portable practical scenes, although the anode still remains the high cost and low anti-toxic ability of noble metal (viz. Pt). Using photo-responsive anodes to boost the performance of fuel cell activity and stability with the aid of light illumination has been as the new strategy and herein we construct core–shell structure of Si nanowires (NWs)@ZnO anode to investigate the performance of μ-DMFCs under light illumination. The short circuit current and open circuit voltage of Si NWs@ZnO heterojunction are 100.5 μA cm −2 and 0.7 V, respectively, which are 3.5 and 1.3 times higher than Si NWs under light illumination. The Si NWs@ZnO photoanode also kept 97.3 % of current density for the second reused. A record-high discharge voltage of 0.7 V and more than 12 h of discharge time were achieved in photo-assisted μ-DMFCs. Carefully designed core–shell structure and the matched energy levels between Si NWs and ZnO contribute to the significant improved performances, where they can attenuate the light reflexes of the polished silicon, strengthen photos absorption and boost the charge transfer kinetics. This study opens an appealing research direction based on photo-assisted non-noble semiconductor anode toward the high-performance μ-DMFCs.
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MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2021
·
IF 3.927
Nan Qing Yang,Jin Li,Ya Nan Wang,Jie Ma
In this study, Fe and Ce co-doped ZnO (Zn 1-2x Fe x Ce x O, x = 0, 0.01, 0.03, 0.04) was prepared through hydrothermal synthesis , followed by annealing. The samples were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, UV–vis spectroscopy, and photoluminescence spectroscopy, and the photocatalytic efficiency of the samples on the organic dye, methylene blue, under simulated sunlight was studied. Based on first principles, the influence of doping on the band structure of the samples was studied. The experimental results show that co-doping ratios affect the performance of ZnO. When the doping concentration was 3 at%, the red shift of the UV–vis spectrum of the material was the most obvious, and the PL of the material was inhibited. Compared with pure ZnO, the degradation rate increased from 72.6% to 98.5%. As the doping concentration increased, the photocatalytic performance of the materials began to decrease. Simulations showed that the incorporation of small amounts of Fe and Ce reduced the band gap of ZnO and introduced a shallow donor level in the band gap, effectively inhibiting the recombination of carriers, thereby improving the photocatalytic performance of the material. When the doping ratio was increased from 3% to 4%, the band gap became wider. These results indicate that Fe and Ce co-doped ZnO has potential applications in the photocatalytic degradation of organic pollutants and provides a method for improving photocatalytic performance by inhibiting carrier recombination.
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Science of Advanced Materials
·
2015
·Vol. 7
·期 7
·1319-1325
·
IF 2.598
Xiang Di,Lin Huiming,Ma Jie,Chen Xiang,Jiang Jingjie,Qu Fengyu
In order to enrich the variety of zinc oxide (ZnO), well-defined porous ZnO hollow microspheres (PZHM) by a mass of nanoparticles were successfully synthesized through a simple solvothermal method. Zinc acetate and 1,2-propylene glycol was used as zinc source and solvent respectively
to fabricate PZHM without the assistance of any surfactant. Upon changing the amount of zinc acetate and 1,2-propylene glycol, the morphology of the samples could be adjusted. PZHM, with 1–2 μm in diameter and 200–300 nm in wall thickness, were found to be composed of
nanoparticles that assembles to form the large surface area and highly porous samples. Gas sensing performances of the ZnO hollow spheres have been investigated, showing high sensitivity (S = 180 at 1000 ppm), low detection limit (1 ppm), fast response/recovery (8/9 s), and very good
selectivity.
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高影响因子
RSC Advances
·
2020
·Vol. 10
·期 38
·22848-22855
·
IF 3.119
Yunxia Jin,Shimin Wang,Jia Li,Sheng Qu,Liufang Yang,Junming Guo
Due to the limited utilization of electrode materials, the rational design and facile synthesis of composite structures are still challenging issues for lithium-ion batteries (LIBs). Herein, a simple approach has been developed to prepare multiple core–shell structures of ZnO nanoparticles (NPs) encapsulated in hollow amorphous carbon (AC) shells. The as-synthesized ZnO@AC composites showed a uniform dispersion of ZnO NPs, compliant buffer AC shells, and nanoscale void spaces between the ZnO NP cores and AC shells. As a result of their structural merits, the ZnO@AC composites were evaluated as anode materials for LIBs and delivered enhanced coulombic efficiency, high reversible capacity, high rate capability, and improved cycling stability.
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高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Xiang Cai,Tao Yuan,Xiangfu Liu,Guoli Tu
Solid alcohol 1-pyrenemethanol (PyM) was first introduced to modify the zinc oxide (ZnO) layer which is used in the inverted polymer solar cells (PSCs) as a cathode buffer layer (CBL). As a low-cost industrial product, the PyM can modify the surface defects and improve the electron mobility of ZnO CBL, which can be attributed to the self-assembly of PyM on the ZnO surface due to the hydrogen bonds and the conjugated structure in PyM. With a blend of PTB7:PC71BM as active layer, the device with ZnO/PyM CBL exhibited a notable power conversion efficiency (PCE) of 8.26%, which is better than that of control devices based on bare ZnO CBL (7.26%). With the addition of PyM, the device based on PTB7-Th:PC71BM showed a higher PCE of 9.10%, an obvious improvement from the 7.79% of control devices. There was no obvious change in device performance with the increase of PyM solution concentration, indicating that the device fabrications are thickness-insensitive. These results could be particularly useful in solution processing of buffer layer materials to high-efficiency organic solar cells.
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高影响因子
Nanoscale Research Letters
·
2019
·Vol. 14
·期 1
·1-13
·
IF 3.159
Tong Yanhua,Lai Shilian,Wu Fan,Guo Yuhua,Chen Haifeng,Pan Guoxiang,Sun Jingwei
ZnO porous nanosheets (PNSs) with partial surface modification were fabricated by means of depositing amorphous BiVO 4 on basic zinc carbonate nanosheets followed by calcining at 500 °C. At low levels of anchored amorphous BiVO 4 , the surface of ZnO PNSs was partially evolved into Bi 3.9 Zn 0.4 V 1.7 O 10.5 (BZVO). The measurements for photocurrent and photoluminescence demonstrate that partial-surface BZVO-modified ZnO PNSs (ZB_0.01) could significantly inhibit the recombination of photoinduced carriers. This should be ascribable to the driving from surface potential difference produced by non-junction part and vertical p-n BZVO/ZnO junction part on the surface of ZB_0.01. Furthermore, the photocatalytic efficiency in degradation of reactive brilliant red for ZB_0.01 under weak solar irradiation is about 8 times higher than that under strong visible-light illumination. The discussion regarding reasons for this enhancement demonstrates that each component in photocatalysts having rational valence-band maximum and conduction-band minimum energy levels is essential to obtain high-activity sunlight-driven catalysts.
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高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Zilong Zhuang,Fuming Zhang,Dayakar Gandla,Vijaykumar V. Jadhav,Zhaoxi Liu,Liangsheng Hu,Fushen Lu,Daniel Q. Tan
The drastic volume expansion and dendrite growth of lithium metal anodes give rise to poor electrochemical reversibility. Herein, ZnO, N dually doped nanocages (c-ZNCC) were synthesized as the host for lithium metal anodes using the zeolitic imidazolate framework-8 (ZIF-8). The synthesis is based on a two-step core@shell evolution mechanism, which could guide lithium deposition rapidly and offer a fast lithium-ion diffusion during the cycling process. Benefiting from the unique design, the as-obtained c-ZNCC can render a record short lithium infusion as low as 1.5 s, a stable lithium stripping/plating capability as long as 3000 h, and a voltage hysteresis of 95 mV when cycling at 10 mA cm–2 to 10 mA h cm–2. A low Tafel slope of 3.45 mA cm–2 demonstrates the efficient charge transfer of c-ZNCC-Li, and the galvanostatic intermittent titration technique measurement shows high diffusion coefficient of c-ZNCC-Li during the charging process. In addition, the LNMO||c-ZNCC-Li cell exhibits a capacity retention as high as 93.7% at 1 C after 200 cycles. This work creates a new design for deriving nanocages with dual lithiophilic spots using a metal–organic framework and carbon cloth for favorable Li metal anodes.
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高影响因子
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