JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Kexin Chen,Yan Zhang,Zhibin Jin,Yinchun Hu,Qi Lei,Yongcun Li,Qiong Zhou,Yingying Wang
Aramid fiber (AF)-reinforced composites face significant limitations in applications such as deep-sea equipment and aerospace due to their poor interfacial compatibility and low bonding strength. This study presents an innovative and scalable strategy for constructing a nano-hierarchical reinforcement interface on AF to fundamentally address this issue. A multifunctional interlayer was first constructed using polyethyleneimine (PEI) and polydopamine (PDA), on which both carboxylated and aminated carbon nanotubes (COOH-CNTs and NH 2 -CNTs) were co-anchored to produce the final product, denoted as C/N-CNTs-PP-AF. The distinctive dual-CNT configuration produced a stable electrical resistance in the range of 51.57–84.20 MΩ by forming a continuous conductive network. More importantly, C/N-CNTs-PP-AF/unsaturated polyester (UP) composites exhibited significant enhancement in properties, which corresponded to an interfacial strength of 39.60 MPa (an 81.15% increase) and tensile strength of 1404.25 MPa (an 89.45% improvement). The approach leverages multifaceted interfacial interactions to enable stable CNT grafting and enhanced adhesion. This work not only effectively addresses weak bonding at the AF/UP interface but also establishes a new paradigm for the design of high-performance fiber-reinforced composites with integrated functionalities.
研究领域:
材料科学
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复合材料
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表面工程
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纳米技术
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聚合物基复合材料
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MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Xinyu Huang,Junhong Li,Huan Zhang,Xuemin Duan,Lihua Yao,Ruirui Yue,Jingkun Xu
As a natural flavonoid glycoside, rutin has been made into many medical products due to its unique pharmacological activity. However, excessive intake of rutin is harmful to health. Therefore, developing a new sensing technique to achieve highly sensitive, rapid and on-site detection of rutin is of great significance to ensure food and medicine safety. Herein, an electrochemical sensing platform was proposed based on the nanocomposite of functionalized multi-wall carbon nanotubes/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/Ru nanoparticles (MWCNT-COOH/PEDOT:PSS/Ru) for rutin detection. The characterization techniques reveal that MWCNT-COOH and PEDOT:PSS crossed together forming a 3D interconnecting structure with plenty of areolations and high specific surface area, and Ru nanoparticles uniformly dispersed on the surface of MWCNT-COOH/PEDOT:PSS. Moreover, due to the good film reforming property of PEDOT:PSS, the as-obtained MWCNT-COOH/PEDOT:PSS/Ru composite shows special surface appearance as flexible free-standing film, which can be freely cut and used as sensing platform directly. Electrochemical experiments confirmed that MWCNT-COOH/PEDOT:PSS/Ru composite film performed satisfactory sensing properties toward rutin detection with wide linear ranges of 0.01 ∼ 0.7 μM and 0.7 ∼ 50 μM, low detection limit of 6.1 nM and high sensitivity of 79.43 μA μM −1 cm −2 . Besides, the composite sensing platform also exhibits high selectivity, reproducibility, and stability. During actual sample testing, the sensing platform was successfully applied for rutin detection in rutin pharmaceutical tablets and black buckwheat tea, showing promising application prospects in rapid, convenient, and high-efficiency on-site test.
研究领域:
材料科学
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分析化学
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生物医学工程
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JOURNAL OF POLYMER RESEARCH
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2026
·Vol. 33
·期 4
·140
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IF 3.5
Wang Ziyu,Wu Ranran,He Yanyang,Hu Yufang,Wang Sui,Mao Jie
Addressing the critical challenge of balancing mechanical robustness and electrical conductivity in hydrogels for wearable sensors, this study proposes a synergistic processing strategy that integrates freeze-thaw cycling, thermal annealing, and the Hofmeister effect-induced salting. A ternary composite hydrogel was prepared with polyvinyl alcohol (PVA) as the matrix, polyethyleneimine (PEI) to enhance crosslinking and biocompatibility, and carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) to improve conductivity. The optimized freeze-thawing-annealing (100 °C, 20 min) and salting-out (1.5 M NaCl) process resulted in a densely cross-linked network featuring significantly enhanced crystallinity and a homogeneous, pore-free microstructure. This hierarchical structure confers upon the hydrogel outstanding mechanical properties: tensile strength of 4.15 MPa, toughness of 17.73 MJ/m 3 , elastic modulus of 2.84 MPa, and a high fatigue threshold of 117.4 J/m 2 . Simultaneously, the electrical conductivity of the hydrogel reached 0.449 S/m. The hydrogel demonstrated excellent strain/pressure sensing capabilities, featuring tunable gauge factors (GF = 0.87–2.12 within the 0-100% strain range) and pressure sensitivity (0.145 kPa -1 below 2 kPa). The practical applicability of the hydrogel was verified by reliably monitoring various human motions in real-time. This research offers a scalable and effective material design strategy for next-generation flexible electronics.
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Journal of Cleaner Production
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2020
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IF 7.246
Qingbin Qi,Yu Wang,Wei Wang,Dan Yu
Many new laboratory-scale photothermal conversion materials have been developed for purification or desalination but developing easy-to-manufacture, low-cost and scalable materials with high efficiency of solar energy to thermal energy still faces great challenges. Herein, we provided a simple and effective method for self-assembly of dopamine-modified boron nitride (BN-PDA) and carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) layers on cotton fabric (CF), and assembled a solar steam generator by using the as-prepared composite cotton fabric as photothermal layer, cotton yarns (CYs) as water supply channel, and thermally insulated polystyrene (PS) foam as a supporting material. This solar steam generator exhibited a superior evaporation rate of 1.55 kg m −2 h −1 and an excellent photothermal conversion efficiency of ∼83.66% under 1.0 sun irradiance (1.0 kW m −2 ), with optical absorption up to 93.50% in the wavelength of 300–2500 nm. Meanwhile, excellent quality of freshwater from seawater and dyeing wastewater was also demonstrated. Different from other solar steam generator systems, this assembled fabric is cost-effective and readily available, suitable for large-scale industrial applications. Notably, the results show that multi-layer structure imparts it with outstanding mechanical flexibility and robustness, making it a potential candidate for fresh water supply in remote, off-grid or water-contaminated areas.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2018
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IF 3.235
Qing Zheng,Huibo Shao
We have explored the intermolecular interactions within a two-component self-assembled monolayer, a model system to develop our understanding of interfacial chemistry in molecular level. The redox signal of 11-ferrocenyl-1-undecanethiol (FcC11) reversibly responded to the formation of intermolecular H-bonding: The intermolecular H-bonding between the terminal carboxyl groups of MSA promoted the formation of MSA assemblies, which increased the influence of MSA on the neighboring molecules (FcC11). Meanwhile, the disordered FcC11 appeared within the locally ordered FcC11 patches, resulting in the presence of a new couple of redox peaks in the cyclic voltammograms. The surface coverage that corresponding to the H-bonding affected FcC11 increased exponentially from 0 to 3.49 × 10 −10 mol cm −2 as a function of the time of MSA assembly. The pK 1/2 value (the pH when half of the –COOH groups are ionized) that determined for the FcC11/MSA modified gold substrate was obviously higher than the alkanoic acids in aqueous solution. The results show that the intermolecular H-bonding between MSA molecules plays a key role in controlling the molecular assembly within the two-component self-assembled monolayer, which provides an approach for regulating the structural changes of the model membrane in molecular level.
研究领域:
表面化学
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电化学
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材料科学
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分子相互作用
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Green Processing and Synthesis
·
2023
·Vol. 12
·期 1
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IF 4.3
Xin Zhang,Xutong Zhu,Lifa Huang,Zupeng Chen,Yuchen Wang,Yajun Liu,Ruihan Pan,Ling Lv
Tanshinone IIA has a potential therapeutic effect on cerebral ischemia/reperfusion injury (CIRI). In this study, tanshinone IIA was encapsulated in poly(lactic- co -glycolic acid)-block-poly (ethylene glycol)-carboxylic acid (PLGA-PEG-COOH) nanoparticles, and its therapeutic efficacy on CIRI was investigated. Morphology and dynamic light scattering analyses were performed to identify and optimize nano-formulations. A drug release test was conducted using the dialysis method. The cytotoxic effect of tanshinone IIA on human neuroblastoma cells (SH-SY5Y) and brain endothelial capillary cells (hCMEC/D3) was measured using the MTT assay. The protective effect of PLGA-PEG-COOH-encapsulated tanshinone IIA against CIRI was evaluated in oxygen and glucose deprivation/reoxygenation-induced SH-SY5Y/IR cells and middle cerebral artery occlusion (MCAO) rats. Results showed that PLGA-PEG-COOH-encapsulated tanshinone IIA promoted viability and inhibited apoptosis of SH-SY5Y/IR cells ( P < 0.01). Moreover, PLGA-PEG-COOH-encapsulated tanshinone IIA facilitated the invasion of SH-SY5Y/IR cells and repressed inflammation in MCAO rats ( P < 0.01). Noteworthy, PLGA-PEG-COOH-encapsulated tanshinone IIA combined with angiopep-2 peptide presented a better inhibitory effect on CIRI than tanshinone IIA alone ( P < 0.01). Angiopep-2 peptide contributes to traversing blood–brain barrier by recognizing lipoprotein-related protein expressed in the brain capillary endothelial cells. In conclusion, PLGA-PEG-COOH-encapsulated tanshinone IIA plus angiopep-2 peptide holds promising therapeutic potential toward CIRI.
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TALANTA
·
2023
·
IF 6.1
Haotian Wu,Gang Zhang,Xiaozhan Yang
An electrochemical biosensor based on iron tetroxide (Fe 3 O 4 )/carboxylated carbon nanotubes (MWCNTs-COOH)/gold nanoparticles (AuNPs) was designed for the detection of alpha-fetoprotein (AFP), which is often used as an important indicator for the early clinical diagnosis of liver cancer markers. The Fe 3 O 4 /MWCNTs-COOH nanocomposite was synthesized by a solvothermal method and it combined with gold nanoparticles (AuNPs) deposited at the constant potential on a glassy carbon electrode to form Fe 3 O 4 /MWCNTs-COOH/AuNPs, which intensifies the electrical signal while the large active sites enable more stable immobilization of the AFP monoclonal antibodies on the electrode. The electrochemical performance of Fe 3 O 4 /MWCNTs-COOH/AuNPs was investigated in detail and the electrochemical response signal after the immune reaction with the AFP antigen-antibody was recorded. The peak current Ip of the response signal is linearly proportional to the lg c AFP in the range of 1 pg mL −1 –10 μg mL −1 , with a detection limit of 1.09034 pg mL −1 and good performance in clinical sample testing. The proposed sensor has shown great application and development potential in clinical medicine field.
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DOI
PubMed
高影响因子
Journal of Water Process Engineering
·
2024
·
IF 6.3
Muchen Lu,Jie Sun,Meiqi Cheng,Yue Zhao,Jian Zhang,Haina Bai,Junlian Ren,Ruoyi Li
The extensive application of doxycycline hydrochloride (DOX) in cultivation industry concerns regarding its potential ecological ramifications. Electrocatalysis has emerged as a safe and efficient method for antibiotic removal from water. In this study, Ni/MWCNTs-COOH/Ti composite electrodes were prepared using anodic oxidation and constant-current electrodeposition techniques for the cathodic electrocatalytic degradation of DOX. The electrodes were characterized and evaluated using SEM, XRD , and XPS analysis . Under optimized conditions, 75.49 % of DOX was eliminated within 60 min with an energy consumption of 0.66 kWh/m 3 . Even after ten successive degradation cycles, the degradation rate of DOX remained at 70.78 %, confirming the exceptional stability of the electrodes. LC-MS analysis was employed to identify intermediates formed during the DOX degradation process. The results revealed that the hybrid orbital coordination structure formed by vacant d orbitals and d orbitals on the exoelectronic structure of Ni enhances catalytic activity and electrochemical stability. And the exposed reactive groups on the outer surface of MWCNTs-COOH, acting synergistically with Ni. Furthermore, the composite cathode generates reactive H ⁎ and the anode generates ·OH, resulting in a synergistic coupling that further enhances catalytic activity. This study presents a novel approach for addressing antibiotic contamination through environmental remediation.
研究领域:
环境科学
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电化学工程
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材料科学
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LANGMUIR
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2025
·
IF 3.9
Guoping Wang,Tian Tang,Ruichen Liu,Jingwen Li,Yi Xu,Sen Liao
By utilizing carboxylated multiwalled carbon nanotubes (MWCNT-COOH) to strengthen the interaction between the electrode and the analytes and improve the conductivity of the composite material and in conjunction with the superior catalytic properties of copper-based metal–organic framework (MOFs), a novel electrochemical sensor was fabricated from a Cu-MOF/MWCNT-COOH composite, specifically designed for the simultaneous and distinct detection of ascorbic acid (AA) and dopamine (DA). Electrochemical analyses were conducted on the innovative Cu-MOF/MWCNT-COOH electrode through both CV and DPV, revealing unique electrochemical behaviors for AA and DA. The sensor not only showed exceptional electrocatalytic properties but also distinguished itself by its broad dynamic response ranges, covering concentrations from 3 to 1800 μM for AA and from 2 to 180 μM for DA, with detection limits (S/N = 3) of 3.00 μM for AA and 0.32 μM for DA. Furthermore, this electrochemical detection platform exhibited robust reproducibility and selectivity. Examinations of serum samples yielded the recovery rates of AA and DA which were 101.9% and 102.1%, respectively, confirming the sensor’s capability to perform reliably under varied biological conditions. The findings confirm the sensor’s potential of the proposed method for the simultaneous, sensitive, and reliable detection of AA and DA. In conclusion, the electrochemical sensor has a promising potential for practical applications.
研究领域:
分析化学
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生物医学工程
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DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Jiaying Liu,Guang Nie,Shuai Yang,Yanmin Zhang,Ziyun Li,Sitong Wang,Zijian Song,Shuanli Du,Yingchun Li
Semi-aromatic polyamides (SAPAs) are emerging as promising engineering polymers due to their unique combination of high rigidity, thermal stability, and processability. However, pure SAPAs suffer from limited electrical conductivity and multifunctional responsiveness, hindering their application in smart materials and actuators. In this paper, PA5T/56 copolyamides with varying terephthalic acid/adipic acid molar ratios (3/7–7/3) were synthesized via melt polycondensation and characterized mainly by 1 H NMR, FTIR. PA5T/56 (3/7), with the optimal balance of mechanical performance and processability, was selected as the composite matrix. Composites containing different contents of carboxyl-functionalized multi-walled carbon nanotubes (MWCNT-COOH, 0, 5, 10, 15 wt%) were prepared by solution casting. The effects of MWCNT-COOH on the thermal stability, mechanical properties, and especially thermo- and electro-induced shape memory behaviors of the composites were comprehensively investigated. The results show that MWCNT-COOH markedly improves the thermo-induced shape memory at an appropriate loading, with the shape recovery rate reaching 82.8% and the shape fixity rate exceeding 90% at 10 wt% MWCNT-COOH. 15 wt% MWCNT-COOH/PA5T/56 can achieve electro-induced shape recovery via Joule heating within 44 s. Overall, this work establishes the structure–property relationships of PA5T/56 copolyamide with tailored monomer compositions and demonstrates the effectiveness of MWCNT-COOH in imparting thermo- and electro-responsive functionalities.
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COMPOSITES PART B-ENGINEERING
·
2021
·
IF 9.078
Jiaoli Hu,Fei Yan,Hao Liu,Lianshuang Zhao,Zheng Li,Yu Liu,Yuhui Ao,Liu Liu
Improving the dissatisfactory interfacial adhesion of carbon fiber (CF)/polyether-ether-ketone (PEEK) composites in some specific conditions is an extremely urgent demand. In this work, a series of soluble phenolphthalein polyaryl-ether-ketone polymers with different carboxyl contents (PEKC-COOH) were synthesized and employed to prepare water-based sizing agents. PEKC-COOH showed high solubility and excellent thermal properties, with over 239.5 °C of T g value, which were much higher than that of PEEK (148.4 °C). The sizing agents exhibit good storage stability with particle sizes between 60.6 and 75.0 nm. Compared to unsized CF/PEEK composites, the bending strength and interlaminar shear strength of the CF-5/PEEK composites were enhanced by 52.9% and 53.3%, respectively. An illustrative mechanism for the interfacial reinforcement effect of the sizing agent was proposed accordingly. The protocol provides an effective and green method towards water-based sizing agent for enhancing the interfacial properties of CF/PEEK composites.
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JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
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2016
·
IF 1.733
Gang Zhou,Lei Wang,Jianchao Li,Jun Tai,Haisheng Su,Jing Zhang,Yuan Xi,Yubo Fan
The accumulation of uremic toxins in blood might induce chronic renal failure (CRF). The incidence of CRF was as high as 10%. The traditional therapy for CRF was hemodialysis, which was more effective to remove small molecules, such as urea and creatinine. However, this detoxification method ignored the tissue functional adaption due to the retention of macromolecule uremic toxins. To solve this problem, this paper developed a new kind of chitosan/carboxyl graphite oxide (CS/GO-COOH) scaffold via a double-lyophilization method. Then, this synthetic scaffold was characterized by Fourier transform infrared spectroscopy, scanning electron microscope, hydrophilic test, mechanical property, and in vitro detoxification test. Covalent bonding and hydrogen bonding were formed, indicating the strong interactions between CS and GO-COOH. There were interconnected networks in the synthesized scaffold. The mechanical test suggested that the GO-2500 scaffold had excellent mechanical strength, which was 7.41 ± 0.82 MPa with 25% shrink. What is more, GO-2500 could totally rebound within 1s, after compressed to 90% shrink. The rates of GO-2500 were 1587 ± 60 and 246 ± 10% according to the water uptake and retention data, respectively. Furthermore, the detoxification of GO-2500 to urea, creatinine, VB12, and β2-m were 67.59 ± 2.31, 39.67 ± 2.95, 31.51 ± 2.62, and 83.82 ± 7.76 mg/g, respectively. The resulting CS/GO-COOH scaffold held great potential for the detoxification of uremic toxins.
研究领域:
生物医学工程
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纳米材料
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肾脏治疗
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组织工程
·
解毒技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）