Materials Science & Engineering C-Materials for Biological Applications
·
2018
·
IF 5.08
Xiaoxin Yang,Chuang Zhang,Anxia Li,Jie Wang,Xiulan Cai
In the field of modern nanomedicine, ZnO nanoparticles were considered as an emerging candidate for drug delivery because of their inherent biocompatibility and stability. However, the poor dispersibility in a physiological medium obstructed their clinic applications. In this paper, the red fluorescence ZnO nanoparticles were synthesized, using a facile chemical method of polyol in boiling trimethylene glycol (TREG) with zinc acetate. The as-synthesized ZnO nanoparticles were first time grafted with PG layer through ring-opening polymerization of glycidol (ZnO-PG). As calculated from the TGA data, the weight ratio of the grafted PG was about 68 wt%. Then, the ZnO-PG engineered to conjugate with arginine-glycine-aspartate (RGD) peptide by stepwise organic reactions. Finally, anticancer drugs Doxorubicin hydrochloride (DOX) was immobilized on ZnO-PG-RGD (approximately 21.8 ± 0.9 nm) to form ZnO-PG-RGD/DOX. The drug release percentage reaches 70.6% within 48 h under pH 5.2, which was more than 3-fold higher than that pH 7.4. The properties of ZnO nanoparticles and its derivatives were detected by power XRD, TEM, EDS, FTIR, TGA, DLS, Zeta potential and UV. The grafted PG layer not only largely enhanced the dispersibility, but also inhibited ZnO nanoparticles from the uptake by U87MG and Hela cells. In contrast, ZnO-PG-RGD was selectively taken up by U87MG, not Hela cells, demonstrating an obvious targeting property. When ZnO-PG-RGD/DOX was used, U87MG cells showed specificity damaged compared with Hela cells. Thus, functionalized ZnO nanoparticle was a promising nanomaterial in cancer theranostics.
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Zhen Wang,Luyao Ding,Shenglong Yu,Huan Xu,Xiaohui Hao,Yi Sun,Tianmin He
A comparative study has been made to relate the effect of different addition strategies for the sintering aid of ZnO (∼1 wt %) on the performance of the BaZr0.4Ce0.4Y0.2O3−δ (BZCY442) electrolyte in order to improve the sinterability and conductivity of this material more efficiently. Two samples, Zn-doped BaCe0.4Zr0.4Y0.15Zn0.05O3−δ (BZCYZn, internal doping) and BZCY–ZnO (BZCY442 mixed with ZnO, external addition), were synthesized. The BZCYZn crystallized at a single phase after sintering at 1350 °C, and the segregation of Y2O3 was observed in BZCY–ZnO in the same conditions. The relative densities of the BZCYZn and BZCY–ZnO samples sintered at 1350 °C for 5 h were 98 and 94%, respectively. The high total conductivity in BZCYZn benefited from the low barrier height at the grain boundary core determined by the Mott–Schottky space charge layer model, which was 0.15 V for BZCYZn and 0.26 V for BZCY–ZnO. A cell with BZCYZn as the electrolyte generated a power density of 414.5 mW cm–2 at 700 °C. The total ionic transport number of BZCYZn was determined to be ∼0.90 at 600 °C under fuel cell conditions.
✓ 已验证
DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2022
·Vol. 24
·期 12
·1-14
·
IF 2.533
Lu Junfeng,Li Donglin,Chen Xianjia,Peng Xiaolin,Li Jing,Yang Yanting,Hong Bo,Wang Xinqing,Jin Dingfeng,Jin Hongxiao
Here, we demonstrate room temperature NO 2 sensors based on ZnO/rGO nanocomposites by a facile hydrothermal method. The ZnO nanoparticles (20 ~ 50 nm) were wrapped by film-like rGO with different contents (0.5, 1.0, 2.0, 3.0 wt %). They all exhibit p-type sensing toward NO 2 at room temperature. The content of rGO shows an obvious effect on the sensing properties. The ZnO NPs-1% rGO has a high response of 5.21 to 10 ppm NO 2 with a response/recovery time of 198/144 s. The sensing mechanism is discussed. The gas-sensitive properties are derived from the strong synergistic effect between the smaller particles of ZnO and rGO.
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Jing Liu,Tong Xu,Xingwei Sun,Jie Bai,Chunping Li
Flexible and portable supercapacitors as a variety of energy storage devices are used in wearable electronic devices. However, the practical application of flexible supercapacitors is still restricted by comparatively poor performance. Herein, we have successfully prepared porous carbon nanofibers supported Sn and Zn bimetallic composites as flexible and freestanding electrode material in supercapacitors. Sn element encapsulated in nano-fiber films were prepared by electrospinning technique, the SnO x -ZnO/MCNFs composites were formed by immersion of different proportions of Zn 2+ , and further high temperature carbonization process. In addition, on the basis of comparative experiments, a possible mechanism for effective synergy between the two metals were raised. The specific capacitance of SnO x -ZnO/MCNFs-10 mmol/L at 0.5 A g −1 is 783 F g −1 with the retention rate of 87% after 5000 cycles, which is higher than their respective counterparts SnO x /MCNFs (599 F g −1 ) and ZnO/MCNFs (429 F g −1 ). Moreover, a flexible all-solid-state asymmetric supercapacitor (ASC) was further assembled with the energy density of 37.7 Wh kg −1 at the power density of 374.9 W kg −1 , and long-term cyclic stability (76.2% after 5000 cycles). The reason for the remarkable electrochemical performance could be the reasonable combination of the two electrode materials, which provides a new idea for the application of composite materials in supercapacitors.
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2017
·
IF 3.582
Bingfeng Liu,Yaruo Jin,Zhijiang Wang,Defeng Xing,Chao Ma,Jie Ding,Nanqi Ren
In order to strengthen photo-fermentative hydrogen production by different photocatalytic nanoparticles , hydrogen production by photo-fermentative bacteria with addition of TiO 2 , ZnO and SiC nanoparticles in batch culture were investigated in this study. The results indicated that three nanoparticles could improve hydrogen production performance of Rhodopseudomonas sp. nov. strain A7 under respective optimal conditions. The hydrogen yield of 2.81 mol-H 2 /mol-acetate was obtained when TiO 2 nanoparticles with a concentration of 300 mg/L and size of 25 nm. The concentration of ZnO nanoparticles was at 100 mg/L, hydrogen yield reached 2.64 mol-H 2 /mol-acetate. Compared with TiO 2 and ZnO nanoparticles, SiC nanoparticles exhibited greatest potential for enhancing photo-hydrogen production. By addition of nano-SiC with concentration of 200 mg/L which was prepared at temperature of 1500 °C, the maximum hydrogen volume, average hydrogen content and hydrogen yield of strain A7 were achieved at 2272 mL-H 2 /L-culture, 85.2% and 2.99 mol-H 2 /mol-acetate, respectively. And hydrogen production was 18.6% higher than that of alone strain A7 without the addition of nanoparticles. Therefore, the addition of SiC nanoparticles is a promising strategy to improve photo-fermentative hydrogen production from wastewater.
✓ 已验证
DOI
高影响因子
Journal of Surface Investigation
·
2019
·Vol. 13
·期 6
·1192-1198
·
IF 0
Neshchimenko V. V.,Mikhailov M. M.
The reflectance spectra of ZnO, TiO 2 , and SiO 2 micro-, nano-, and hollow powders after their exposure to 100-keV protons are analyzed at wavelengths between 250 to 2500 nm. The hollow particles are up to 5 μm in size with a specific surface area of 32 to 57 m 2 /g. It is established that hollow particles have a greater radiation stability to proton exposure than microcrystal particles. The effect is due to the absence of radiation-induced defects in the volume of the spherical particles, low ionization losses, and a high ability to relax radiation-induced defects in the thin layer of the sphere.
✓ 已验证
DOI
Journal of Energy Chemistry
·
2020
·
IF 7.216
Ruihan Zhang,Maochun Wu,Xinzhuang Fan,Haoran Jiang,Tianshou Zhao
Currently, lithium-sulfur (Li-S) batteries still suffer from fast capacity decay, poor coulombic efficiency (CE) and short cycling lifespan, which result from the severe shuttle effect issue caused by high solubility and rapid diffusion of lithium polysulfides (LiPSs) in organic electrolytes. Here, yolk-shell zinc oxide (YS-ZnO) spheres are synthesized and for the first time, applied as a host for Li-S batteries to tackle this challenge. The polar ZnO exhibits high chemical anchoring ability toward LiPSs while the unique yolk-shell structure not only provides an additional physical barrier to LiPSs but also enables much more uniform sulfur distribution, thus significantly suppressing LiPSs shuttling effect meanwhile promoting sulfur conversion reactions. As a result, the YS-ZnO enables the Li-S battery to display an initial specific capacity of 1355 mAh g −1 and an outstanding capacity retention capability (~89.44% retention rate) even after 500 cycles with the average CE of ~99.46% at the current of 0.5 C. By contrast, the capacity of conventional-ZnO-nanoparticles based battery severely decays to 472 mAh g −1 after cycling for 500 times. More impressively, the S/YS-ZnO based Li-S battery can maintain a low decay rate of 0.040% every cycle and high average CE of 98.82% over 1000 cycles at 3 C.
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Shi Pan,Yu Xin,Chang Miao,Guorui Liu,Guocheng Li,Wei Xiao
A simple surfactant-assisted approach is applied in electrospinning technique to fabricate size-controlled ZnO nanoparticles uniformly encapsulated within carbon nanofibers (ZnO@NC). Characterization results reveal that continuous electrospun carbon nanofibers construct three-dimensional network framework, and ZnO nanoparticles are uniformly encapsulated in carbon nanofibers. Moreover, the introduction of cationic surfactant cetyltrimethylammonium bromide (CTAB) can effectively limit the growth of ZnO nanoparticles to form smaller grain sizes during the carbonizing process. Specifically, the assembled Li//ZnO@NC-CTAB cell delivers an initial discharge specific capacity of 1238.3 mAh/g at 100 mA/g and maintains a reversible specific capacity of 875.5 mAh/g after 100 cycles. Moreover, the cell expresses the exceptional rate capability with a discharge specific capacity of 531.8 mAh/g at 2000 mA/g. This excellent electrochemical performance can be partly attributed to the electrostatic repulsion from its positively charged quaternary ammonium groups -N + (CH 3 ) 3 of CTAB, which effectively disperses the Zn 2+ precursors within micelles, thereby preventing aggregation and ensuring uniform nucleation. Moreover, these micelles subsequently serve as spatial confinement during carbonization, suppressing particle migration and resulting in uniform dispersed ZnO nanoparticles. These features indicate that the systematic combination of electrospinning and surfactant have significant promise for the construction of high-performance anode materials for lithium-ion batteries.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Xiaoli Liang,Zhoujing Chen,Hong Ruan,Yuqi Li
Enhancing the toughness, conductivity and adhesion of hydrogels while reducing hysteresis is crucial for the development of flexible hydrogel sensors. Inspired by fishing nets, silica-coated zinc oxide core-shell nanoparticles (SiO 2 @ZnO) with unsaturated double bonds on their surface were synthesized through an in-situ sol-gel method. These nanoparticles were incorporated into 2-acrylamido-2-methylpropane sulfonic acid (AMPS), forming a double-crosslinked, nano-SiO 2 reinforced multifunctional composite hydrogel (SiO 2 @ZnO/PAMPS, PAS) through radical polymerization. The results show that the hydrogel has a low hysteresis rate of less than 10 % at a breaking strain of 1412 %, and the adhesion strength with pig skin, which simulates human skin, reaches 34.79 kPa. Additionally, strain sensors based on this hydrogel show a high sensitivity value of 1.26 and a fast response time (214 ms) within a strain range of 200–700 %. Furthermore, a triboelectric nanogenerator (TENG) based on PAS demonstrates an open-circuit voltage of 131.2 V and a power density of 239.13 mW/m 2 . This TENG can function not only as a power source for electronic devices but also detect differences signal generated while walking on surfaces with different texture. By integrating it with a Bluetooth system, a self-powered intelligent pavement wireless sensing system aimed at aiding the mobility of the visually impaired has been developed, highlighting the potential application of PAS hydrogel sensors in self-powered sensing fields.
✓ 已验证
产品关联
DOI
高影响因子
THERMOCHIMICA ACTA
·
2025
·
IF 3.5
Zhong-xuan Han,Hao Liu,Zhan-jun Yang,Yi-fan Guo,Shu-na Zhao,Mi Li,Lin Jiang,Andrei Rotaru
Aluminised thermites show strong potential for energy-intensive applications, but ensuring stable nanoscale dispersion and optimising combustion performance is challenging. This study prepared Al–MO/PVDF thermites (MO = ZnO, ZnFe₂O₄) by electrospraying and mechanical mixing to compare how particle morphology and compositional uniformity affect reactivity. Electrosprayed samples formed near-spherical, submicron particles with homogeneous distributions of reactants, whereas mechanically mixed samples aggregated into larger, irregular clusters. Differential scanning calorimetry revealed sharper, staged exothermic peaks in the electrosprayed thermites, indicating enhanced reactant contact, while the mechanically mixed thermites produced broad, overlapping exotherms. X-ray diffraction showed partial amorphisation and core-shell formation under rapid solvent evaporation. Laser ignition tests demonstrated faster ignition, higher flame temperatures, and more intense combustion in electrosprayed formulations, particularly Al–ZnFe₂O₄/PVDF, which exhibited a secondary heat release (micro-explosion). Electrospray-assisted fabrication improved homogeneity and promoted rapid, high-temperature reactions for enhanced combustion performance.
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Guoxin Jiang,Shenghui Guo,Guangyu Chen,Hao Sun,Runan Jia,Ming Hou,Li Yang
Hydrogen becomes an important clean energy origin, which will explode in open fire at a certain concentration. This leads to great property and personal safety hazards in the process of hydrogen storage, transportation and leakage. Low temperature and low concentration hydrogen detection is very necessary. In this paper, MXene-TiO 2 -ZnO ternary composites were successfully prepared by one-step in-situ oxidation method using MXene and Zn(NO 3 ) 2 ·6H 2 O as precursors for 1h. The microstructure of the samples was characterized by XPS, TEM, SEM and Raman, and their gas sensing properties were tested. The results show that the Ti 3 C 2 T x -TiO 2 -ZnO structure exhibits a layered accordion-like morphology. Under room temperature (RT 25 °C) and UV light irradiation, the response value of MTZ-1 sample to 1000 ppm hydrogen reaches 73.39 %, which is 96.8 % higher than that of pure Ti 3 C 2 T X . At the optimum operating temperature (100 °C), the response value of MTZ-1 to 1000 ppm hydrogen reached 96.77 %, the detection limit was as low as 1 ppm, and the response value was 1.7 %. The results show that the formation of TiO 2 -ZnO heterojunction, the retention of Ti 3 C 2 T x layered structure and UV irradiation are the main reasons to improve the gas sensing performance (GSP). In this paper, the formation of TiO 2 -ZnO heterojunction, the retention of MXene layered structure and the synergistic enhancement of gas sensitivity by UV excitation were revealed by systematic characterization and mechanism analysis. This research provides a new idea for the development of low energy consumption and high sensitivity room temperature hydrogen sensor, which has important practical application value.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Wenhui Zheng,Qun Liu,Xu Zeng,Meng Li,Yue Liu,Danmin Yang,Xinyi Li,Wuyin Weng,Yucang Zhang
In this work, the sodium alginate (SA) and bacterial cellulose nanofibers (BCNFs) composite films doped with ZnO nanoparticles (ZnO-NPs) and aqueous phase (AP) from hydrothermal carbonization (ZnO-NPs/AP@SA/BCNFs films) were developed for potential in food packaging films. The composite films were prepared using the casting method. The incorporation of the ZnO-NPs significantly enhanced the tensile strength, thermal stability and water resistance of the composite films, while decreasing the water absorption, water solubility and water vapor transmittance. The T 2 relaxation time of the films also showed that the water degree of freedom increased by adding ZnO-NPs. Moreover, the composite films showed good mechanical properties in a wet state with a tensile strength of 25.09 MPa, exhibited strong antioxidant activity (DPPH radical scavenging rate > 90 %) and satisfactory antibacterial (inhibition zone against E. coli and S. aureus of 17.29 mm and 16.23 mm, respectively). It also proved that AP and ZnO-NPs had a synergistic antibacterial effect. The soil-buried experiment indicated the ZnO-NPs/AP@SA/BCNFs films had good degradability. The strawberry preservation experiment showed that the ZnO-NPs/AP@SA/BCNFs films decelerated the weight loss, decay rate, pH and malondialdehyde change, efficiently keeping the freshness and delaying the shelf life of the strawberries.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）