ACS Applied Polymer Materials
·
2026
·
IF 5.2
Ye Zhang,Zongze Wu,Fangyu Zhao,Yixue Zhang,Yiming Luo,Haoxin Shao,Xiaoqing Zhang,Qianchan Pang,Hongfeng Zhang,Xiaocong Wang
Flexible sensors are essential for human–machine interaction and wearable health monitoring in electronics, healthcare, and robotics. However, traditional conductive hydrogels have poor mechanical strength and are susceptibility to microbial infection, limiting their practical application. Herein, a double-network ion-conductive hydrogel (PMAGZr) is fabricated from polyacrylamide (AM), acrylic acid (AA), gelatin, and zirconium oxychloride (ZrOCl2), serving as both a cross-linker and a functional additive. The hydrogel forms a rigid-flexible network, where AM and AA provide rigidity, gelatin enhances toughness and strength via hydrogen bonding, and Zr4+ improves stability through coordination with carboxyl and acylamino groups. The PMAGZr hydrogel exhibits both excellent mechanical properties (with a toughness of 6.11 MJ·m–3 and a fracture elongation of 720.18%) and significant antibacterial activity, showing inhibition zones of 24.70 mm against Escherichia coli and 43.33 mm against Staphylococcus aureus. The hydrogel-based flexible sensor exhibits rapid response (0.6 s), high sensitivity (GF = 4.03), and a wide strain detection range (0%–300%), enabling accurate human motion monitoring, Morse code visualization, and sustained antibacterial function. This research overcomes the big challenge of balancing mechanical toughness and functional versatility in hydrogels. The material enables precise monitoring of human movement and Morse code communication outdoors while ensuring wearer comfort and safety. It overcomes the main defects of conventional hydrogel sensors, providing an alternative solution for next-generation wearables.
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ACS Applied Polymer Materials
·
2022
·
IF 4.855
Cong Huang,Qiqi Miao,Yuhui Chen,Qi Zhang,Xiao He,Ling Li,Xiaoguang Liu
The immersion method in which metal ions were used to toughen macromolecular chains to avoid the failure of hydrogel synthesis due to the rapid formation of coordination bonds in the gel precursor was often used to develop a robust gel. However, the uneven distribution of ions inside the hydrogel was harmful for its sensing performance by soaking. Herein, a robust polyacrylamide/gelatin/ZrOCl2·8H2O (PG-Zr4+) hydrogel was developed by a straightforward strategy to toughen gelatin chains with Zr4+. The PG-Zr4+ hydrogel held not only a high transparency (73%), robust fracture strength (0.842 MPa), and outstanding toughness (4 MJ m–3) but also fast self-recovery and satisfactory conductivity. Furthermore, the crystallization peak of the PG-Zr4+ hydrogel disappeared at −60 to 25 °C with the introduction of dimethyl sulfoxide (DMSO) as a cryoprotectant; it could still exhibit stable electrical responses to weak stimuli of 1% strain at −20 °C for 24 h. Surprisingly, when simply assembled into a strain sensor with a gauge factor (GF) of 5.817, it was capable of precise real-time monitoring of both subtle pronunciation signals and drastic joint movements. This work opened the door to develop flexible wearable devices with multiple advantages.
研究领域:
材料科学
·
生物医学工程
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RENEWABLE ENERGY
·
2023
·
IF 8.7
Jishen Zhu,Weiqiang Jiang,Zong Yuan,Jie Lu,Jincheng Ding
In this study, Zr 4+ -CER was used as a solid acid catalyst to catalyze the esterification reaction. The esterification of tall oil fatty acids (TOFA) with ethanol dehydration was studied by fixed-bed coupled pervaporation (PV). The Zr 4+ -CER catalyst was characterized in detail by Py-IR, NH 3 -TPD, BET, IEC , ICP-OES, SEM, and FTIR. The effects of ethanol/oil molar ratio , catalytic bed height, reaction temperature and feed rate on TOFA conversion were investigated. The esterification reaction conditions were optimized by orthogonal test, and the optimal conditions were ethanol/oil molar ratio 15:1, catalytic bed height 120 mm, reaction temperature 80 °C, and feed rate 0.3 ml/min. The TOFA conversion rate was 99.51 %. After six esterification cycles, the TOFA conversion of the catalyst reached 90.03 %, indicating that the catalyst had high stability. The esterification process using Zr 4+ -CER as the catalyst follows the second-order kinetic model , with an activation energy of 39.54 kJ/mol. Furthermore, the economic analysis of biodiesel production indicates that the Zr 4+ -CER catalyst has the potential to decrease production expenses, presenting an encouraging prospect for future biodiesel industrialization.
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ACS Sustainable Chemistry & Engineering
·
2019
·
IF 6.97
Bin Luo,Qiang Chen,Jia He,Zhiyu Li,Lingzhu Yu,Fang Lan,Yao Wu
To date, abundant strategies and affinity materials are proposed to enrich phosphopeptides and glycopeptides from biological systems. However, few affinity materials can meet the demand for enriching both phosphopeptides and glycopeptides with an integrated single material. In this work, a novel magnetic metal–organic framework nanocomposite with Zr4+ ions as metal unit as well as terephthalic acid (PTA) and 1,4-phenylenebisboronic acid (denoted as PBA) as dual organic ligands was designed and fabricated for highly efficient enrichment of both phosphopeptides and glycopeptides. It is worth mentioning that Zr4+ ions and PBA were well assembled into the MOF coating via the dual-ligand strategy to achieve both phosphopeptide and glycopeptide enrichment by the Zr–O clusters based on metal oxide affinity chromatography (MOAC) and abundant boronic acid groups based on boronic acid affinity chromatography (BAAC) methods. The quick magnetic response performance and high surface area endowed the affinity material outstanding ability for phosphopeptide and glycopeptide enrichment in the model protein mixtures (β-casein, human IgG, and bovine serum albumin). Furthermore, the nanocomposites exhibited specific enrichment capacity in complex biological samples (rat brain and rat liver), revealing the great potential for the identification and analysis of trace phosphopeptides and glycopeptides in biological samples.
研究领域:
分析化学
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蛋白质组学
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生物医学
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CERAMICS INTERNATIONAL
·
2025
·Vol. 51
·期 25
·46911-46917
·
IF 5.6
Pengxin Xu,Zili Zhou,Yaqi Wang,Ergeng Zhang,Zhanyong Wang,Ding Zhou
Highly transparent ceramics of Zr 4+ and Sc 3+ ions co-doped 5 at.%Yb: Lu 2 O 3 were prepared by using wet-chemical precipitant method combined with pressureless sintering in flowing H 2 atmosphere, where Zr 4+ was induced as the sintering aid and Sc 3+ as the band regulators to realizing spectral broadening of Yb:Lu 2 O 3 . The microstructure, broad emission band, PL spectrum and optical properties of the Zr 4+ and Sc 3+ co-doped 5 at.%Yb:Lu 2 O 3 ceramic samples were investigated by SEM, XRD, PL spectrum and other characterization methods. The results indicate that the maxim FWHM of the excitation emission spectrum of Yb:(Lu X Sc 1-X ) 2 O 3 ceramic is 15 nm when x = 0.5. Furthermore, the incorporation of Zr 4+ at a doping concentration of 2 at.% alleviated the microstructural inhomogeneity of the Yb:(Lu 0.5 Sc 0.5 ) 2 O 3 ceramics and significantly reduced the grain size, resulting in high transparency of up to 81.2 % at 1200 nm wavelength. These findings demonstrate a great potential of this ceramic for applications in ultrafast short pulse laser media.
研究领域:
材料科学
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陶瓷
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激光材料
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光学性能
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固态物理
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ANALYTICAL CHEMISTRY
·
2020
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IF 6.785
Siqi Zhang,Jiaxi Cheng,Wei Shi,Kai-Bin Li,De-Man Han,Jing-Juan Xu
Nanochannel-based analytical techniques have great potential applications for nucleic acid sequencing and high sensitivity detection of biological molecules. However, the sensitivity of conventional solid-state nanochannel sensors is hampered by a lack of effective signal amplification strategies, which has limited its utility in the field of analytical chemistry. Here we selected a solid-state nanochannnel modified with polyethylenimine and Zr4+ in combination with graphene oxide as the sensing platform. The high-performance sensor is based upon the change of the surface charge of the nanochannel, which is resulted from DNA cascade signal amplification in solution. The target miRNA (miR-122) can be indirectly quantitated with a detection limit of 97.2 aM with an excellent selectivity. Depending on the nucleic acid’s hybridization and configuration transform, the designed nanochannel sensing systems can realize the intelligent detection of multiple liver cancer-related miRNA (miR-122 and miR Let-7a) integrating with cascaded INHIBIT-OR logic gate to provide theoretical guidance and technical support for clinical diagnosis and therapeutic evaluation of liver cancer.
研究领域:
分析化学
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生物分子传感
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癌症诊断
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纳米技术
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DOI
PubMed
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 93
·90455-90461
·
IF 3.289
Peng Lu,Xiaobing Huang,Yurong Ren,Jianning Ding,Haiyan Wang,Shibiao Zhou,Yuandao Chen,Xiang Ding
Na+ and Zr4+ co-doped lithium titanates with the formula Li4−xNaxTi5−xZrxO12 (x = 0, 0.01, 0.03, 0.05, 0.10, 0.15 and 0.20) were successfully synthesized via a solid-state reaction in air. XRD analysis indicates that Na+ and Zr4+ co-doping does not change the spinel structure of Li4Ti5O12 and the lattice parameter slightly increases with the enhancement of doping amount. Smaller particle size and larger BET surface areas are obtained for Na+ and Zr4+ co-doped Li4Ti5O12 samples. The four-point probe method and electrochemical impedance spectroscopy (EIS) results demonstrate that the Na+ and Zr4+ co-doped Li4Ti5O12 samples possess higher electrical conductivity and smaller charge transfer resistance compared with undoped Li4Ti5O12, resulting in improved electrochemical performance. Particularly, Li3.97Na0.03Ti4.97Zr0.03O12 exhibits the best rate capability and cycling stability. Even at 20C, it delivers a discharge capacity of 140 mA h g−1, and after 100 cycles at 10C, 97.7% of its initial capacity is retained.
研究领域:
材料科学
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电化学
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储能技术
·
锂离子电池
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Aobo Ren,Lianghao Jia,Pan Wang,Tao Xiang,Shaobing Zhou
Conductive hydrogels are widely used in electronic skin, wearable sensing devices, human–machine interfaces, and soft robots because of their high elasticity, biocompatibility, and conformability in interfacial contact. However, hydrogels lose electrical conductivity and flexibility due to water crystallization at low temperatures, which severely limits their applications in the frigid regions. In this study, we propose to design a metal–ligand ionic hydrogel (PAASP-Zr-LiCl) through the formation of a stable coordination bond between the dicarboxylic acid group monomer poly(N-acryloyl aspartic acid) (PAASP) and zirconium ion (Zr 4+ ). Zr 4+ –COO - metal-coordination complex as physical cross-linking points of the network can effectively improve the mechanical properties of hydrogels. By introducing lithium chloride (LiCl), the hydrogel obtained excellent anti-freezing properties (crystallization temperature < -80 °C) and high ionic conductivity (8.45 S/m). The LiCl molecules enhance the interaction between the polymer network and water molecules. The ionic hydrogel-based strain sensors exhibited a high gauge factor of 3.21. Combining hydrogel sensors with soft grippers can realize continuous and stable monitoring of grasping objects at low temperature of −30 °C. By integration of excellent flexibility (elongation at break 837.4 %), good ionic conductivity, high sensitivity, and excellent anti-freezing properties, the anti-freezing ionic hydrogel has a wide range of applications in the frigid regions of the plateau.
研究领域:
材料科学
·
生物医学工程
·
传感器技术
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Hongli Fang,Tailong Dong,ZiHuan Yuan,Xinmeng Zhang,Wei Shao
Zwitterionic hydrogels have emerged as promising candidates for next-generation wearable electronics in human motion monitoring and healthcare diagnostics. Nevertheless, the inherent weak mechanical properties, short of adhesion, and lack of self-healing ability of traditional hydrogels result in low detection accuracy and short service life of the hydrogel sensors. Herein, we developed an innovative multiple-dynamic hydrogel system through the co-incorporation of hydrophobic micelles, Zr 4+ ions, and calcium lignosulfonate as synergistic crosslinkers. The multi-physical interactions (coordination bonds, hydrogen bonding, and electrostatic interactions) endow the hydrogel with good mechanical strength (111 kPa), remarkable self-healing capacity (100 % recovery within 6 h), and great self-adhesion to various substrates. Benefiting from its interconnected porous structure and mobile ion (Zr 4+ /Na + /Cl − ), the hydrogel demonstrated good ionic conductivity (2.9 mS/m). The resultant strain sensor manifested outstanding sensing performance with gauge factors of 3.4 (0–200 % strain) and 14 (400–800 % strain), respectively. Notably, the self-healed hydrogel maintained the stable and accurate sensing performance as before. Practical demonstrations include precise detection of both subtle physiological signals (pulse waveforms, vocal vibrations) and large joint movements. When integrated into smart gloves, the system successfully decoded complex hand gestures. This multifunctional hydrogel platform opens new avenues for developing high-performance wearable devices in healthcare monitoring and human-machine interfaces.
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DALTON TRANSACTIONS
·
2025
·
IF 3.3
Qinghong Meng,Jiaming Yuan,Xiangming Li,Wanjun Yu,Ji-Guang Li
Equimolar Ca2+ and Zr4+ doping was implemented to establish novel garnet-type Gd3‒xCaxAl2.95Ga2‒xZrxO12:0.05Cr3+ (x=0‒2.0) far-red (FR) phosphors. The quantum efficiency and temperature-dependent luminescence analysis successfully produced the optimal x=0.5 phosphor, which exhibited highly efficient (IQE=92.8%, EQE=31.6%) broadband FR-emission peaking at ~714 nm (full-width at half-maximum ~81 nm) and excellent thermal stability (95.5%@423 K) under 450 nm light excitation. Its performance is far superior to that of most reported Cr3+ activated FR-emitting garnet phosphors, and the emission spectrum can well superpose with the absorption band of the far-red phytochrome, making this phosphor have huge potential application in the construction of high-quality FR pc-LED used for plant lighting.
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PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2025
·
IF 4.6
Mu-Lan Yao,Si-Lu Wang,Si-Mian Liu,Xiao Wang,Ji-Jiang Wang,Xiang-Yang Hou
This study presents a novel method for simultaneous identification of Hg 2+ , In 3+ , and Zr 4+ ions in solution using a double-emission fluorescence MOFs composite (EY@MOF-1) as a probe. The new pure zinc-based metal-organic framework ({[Zn 3 (TPPO) 2 (1,4-IYI) 2 ]·3H 2 O} n , MOFs-1, Tri( p - carboxyphenyl) phosphorus oxide = H 3 TPPO,1-(4-imidazol-1-ylphenyl)-imidazole = 1,4-iyi, Eosin Y = EY) produces strong single emission fluorescence at 364 nm when excited at 320 nm. Utilizing its unique fluorescent properties, MOFs-1 can effectively identify Hg 2+ , In 3+ , and Zr 4+ ions in solution. However, the fluorescence quenching effect caused by the three ions is identical, making it impossible to accurately determine which metal is the identified ion. To address this issue, a post-modification synthesis strategy was used to construct EY doped dual-emission fluorescent material EY@MOF-1. As expected, EY@MOF-1 can effectively identify and differentiate Hg 2+ , In 3+ , and Zr 4+ ions in solution based on their different fluorescence quenching changes. The probe has a limit of detection of 0.18 μM (Zr4+), 0.20 μM (In3+), and 0.13 μM (Hg2+) within a certain concentration range. The mechanism of fluorescence recognition was investigated in depth. This double emission fluorescence probe, with its high sensitivity and selectivity, is the first of its kind and provides a simple and reliable method for effective identification of Hg 2+ , In 3+ , and Zr 4+ . It has potential applications in environmental monitoring and is a valuable tool for ion identification.
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PubMed
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ACS Applied Energy Materials
·
2023
·
IF 6.4
Jun-Ke Liu,Zu-Wei Yin,Wei-Chen Zheng,Jing Zhang,Sai-Sai Deng,Zhen Wang,Li Deng,Shi-Jun Xie,Zong-Kui Liu,Maxim Avdeev,Fengjin Qu,Wang Hay Kan,Yao Zhou,Jun-Tao Li
A Ni-rich layered oxide, one promising cathode for lithium-ion batteries (LIBs), exhibits the advantages of low cost and high capacity but suffers from rapid capacity loss due to bulk structural instability and surface side reactions. Herein, a simple synchronous dual-modification strategy with Zr4+ doping and CeO2 nanowelding is proposed to address such issues. Utilizing the migration energy difference of Zr and Ce ions in layered structures, one-step high-temperature sintering of LiNi0.8Co0.1Mn0.1O2 particles with Zr and Ce nitrate distributions enables simultaneous doping of Zr ions in the bulk and CeO2 surface modification. Therein, Zr ions in the bulk occupying the Li sites can improve the Li+ diffusion rate and stabilize the crystal structure, while CeO2 on the surface provides nanowelding between the grain boundaries and resistance to electrolyte erosion. Theoretical calculations and a series of structure/composition characterizations (i.e., neutron scattering, in situ X-ray diffraction, etc.) validated the proposed strategy and its role in stabilizing the Ni-rich cathodes. The synergistic effect of Zr4+ doping and CeO2 nanowelding enables an impressive initial capacity of 187.2 mAh g–1 (2.7–4.3 V vs Li/Li+) with 86.1% retention after 200 cycles at 1 C and rate capabilities of 146.6 and 127.3 mAh g–1 at 5 and 10 C, respectively. Upon increasing the testing temperature to 60 °C, the dual-modified Ni-rich cathode exhibits an initial discharge capacity of 203.5 mAh g–1 with a good retention of 80.8% after 100 cycles at 0.5 C. The present strategy utilizing the migration energy difference of metal ions to achieve synchronous bulk doping and surface modification will offer fresh insights to stabilize layered cathode materials for LIBs, which can be widely used in other kinds of batteries with various cathode materials.
研究领域:
材料科学
·
电化学
·
储能
·
电池技术
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高影响因子
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