Journal of Materials Chemistry B
·
2024
·
IF 6.1
Xiaoyi Li,Xueshan Zhao,Ruiqi Liu,Hui Wang,Shuang Wang,Bing Fan,Chenggong Hu,Haibo Wang
Conductive hydrogel sensors have attracted attention for use in human motion monitoring detection, but integrating excellent biocompatibility, mechanical, self-adhesive, and self-healing properties, and high sensitivity into a hydrogel remains a challenge. In this work, a novel multifunctional conductive particle was designed and added to a polyacrylamide (PAM) matrix to prepare the hydrogel. It is worth noting that with the addition of polydopamine@poly(3,4-ethylenedioxythiophene) (PDA@PEDOT), the PAM/PDA@PEDOT hydrogel (PAPP hydrogel) showed excellent mechanical properties and high adhesion strength on different substrate surfaces. Meanwhile, the PAPP hydrogel shows outstanding self-healing properties, the mechanical properties of PAPP hydrogel broken from the middle recovered 92% tensile strength and 95% elongation at break after 12 h, respectively. Furthermore, assembled as strain wireless sensors, the PAPP sensor displays high sensitivity, where the gauge factor (GF) is 2.82, which can be used to accurately detect human facial micro-expressions and movements. Overall, the PAPP hydrogel with excellent mechanical, self-adhesive, and self-healing properties, and high sensitivity, demonstrated promise for use in wearable devices and bionic skins.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
可穿戴设备
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Chunhui Du,Xu Cheng,Ge Zhang,Jingkun Xu,Jianming Zhang,Guangming Nie,Yao Huang,Shun Li,Yuqiao Zhang,Long Zhang,Yuanhua Lin
Wearable electronics require materials that can withstand mechanical deformation while retaining electrochemical and optoelectronic functionality. Conducting polymers (CPs) are attractive candidates due to their inherent flexibility and electronic conductivity. However, their practical application is often limited by poor long-term stability and deteriorated performance, particularly under thermal or mechanical stress, owing to structural degradation and overoxidation at high potentials. Herein, a dual-strategy molecular design is adopted to intrinsically stabilize poly(3,4-ethylenedioxythiophene) (PEDOT) by combining deuterium substitution with Lewis acid-assisted polymerization, which suppresses backbone vibrational energy and mitigates over-oxidative degradation during redox cycling. The resulting deuterated PEDOT film demonstrates exceptional multifunctional performance, including <5% capacitance loss after 300 000 cycles, a high electrochromic contrast of 40.9% at 700 nm, and a specific capacitance of 317 F g −1 at 1 A g −1 . PEDOT-D -based wearable electrochromic-supercapacitor devices subsequently exhibit 14.3% transmittance at 550 nm, a specific capacitance of 39.7 F g −1 at 1 A g −1 , robust stability, and reliable operation from −25 to 50 °C. This work establishes a structurally grounded molecular strategy for advancing the durability of CPs, providing a rational design for next-generation flexible energy systems that are mechanically robust, thermally adaptive, and optically responsive.
研究领域:
材料科学
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电化学
·
高分子化学
·
柔性电子学
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能量存储
·
光电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BIORESOURCE TECHNOLOGY
·
2021
·
IF 9.642
Yifei Gao,Yihan Li,Lulu Chen,Jing Song,Ying Liu
Efficient ammonia and nitrite removal in low nutrient recirculating seawater of recirculating aquaculture system (RAS) is critical for healthy cultivation. However, it is hard for conventional biological aerated filters (BAFs) to meet this demand under short hydraulic retention time (HRT). The electrooxidation-BAFs (E-BAFs) were constructed for efficient seawater treatment in a RAS of Sebastes schlegelii , with high activity anodic catalyst Ni-Fe oxide-PEDOT. Satisfactory ammonia removal (88.2% in E-BAFs, 33.7% higher than the control, stage 3) and nitrite removal (69.9 % in E-BAFs, 45.3% in the control) were achieved at HRT of 50 min. The proportion of nitrifying bacteria ( Nitrospira, Nitrosomonas and Nitrosopumilus ) and nitrification/denitrification genes ( amo CAB, nxr AB, nar GHI, et. al ) were higher in E-BAFs than the control, suggesting better potential in functional bacteria enrichment. Aerobic colony number in RAS with E-BAFs was lower and specific growth rate (SGR) of Sebastes schlegelii (3.79%) was significantly higher, indicating a better culture effect.
研究领域:
水产养殖
·
环境工程
·
水处理
·
生物技术
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2020
·Vol. 50
·期 2
·543-553
·
IF 1.774
Deng Lu,Xu Quan,Rao Liangmei,Yue Ruirui,Xu Jingkun,Duan Xuemin
In this paper, Pt/Pd-poly(3,4-ethylenedioxythiophene)/nitrogen doped graphene (Pt/Pd-PEDOT/NGE) nanocomposites with hierarchical structure were prepared via a one-pot method. In the first step, Pd-PEDOT composites with Pd nanoparticles scattered on the surface or embedded in coralloid PEDOT particles were obtained through the redox reaction between PdCl 4 2− and 3,4-ethylenedioxythiophene (EDOT) monomer. NGE was then added to improve the electrical conductivity and continuity of the nanocomposites. Finally, the added PtCl 6 2− as well as the residual PdCl 4 2− was reduced by ethanol through heating reflux. As a result, the Pt/Pd-PEDOT/NGE nanocomposites were obtained with Pt and Pd nanoparticles well-dispersed on the surfaces of PEDOT granules and NGE nanosheets. The obtained Pt/Pd-PEDOT/NGE nanocomposites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), and Raman spectra. The electrochemical sensing performance of the Pt/Pd-PEDOT/NGE modified glassy carbon for caffeic acid (CA) was mainly studied by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Under optimized conditions, Pt/Pd-PEDOT/NGE showed superior electrochemical sensing performance for detecting CA with the linear relationship ranging from 0.008 μM to 46 μM and a detection limit of 2.7 nM (a signal to noise ratio of 3 ( S / N = 3)). Moreover the nanocomposite also possesses high anti-interference capability and reproducibility. The real sample analysis of Pt/Pd-PEDOT/NGE was successfully carried out, implying the promising application of CA detection in food and beverages.
研究领域:
材料科学
·
分析化学
·
纳米技术
·
电化学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 41
·30045-30054
·
IF 3.9
Yang Zhang,Linze Li,Bingwei He
Poly(3,4-ethylenedioxythiophene) (PEDOT) has emerged as a promising coating for neural electrodes especially through convenient electrodeposition methods. To investigate the influences of solvents and EDOT monomer concentrations on the electrochemical performance and structural characteristics of PEDOT, both aqueous and acetonitrile solutions were employed with varying monomer concentrations during deposition. The prepared PEDOT films were examined for the surface morphology, electrochemical performance, and chemical structures. The results showed that an increase in EDOT concentration in either solvent led to PEDOT films with improved charge storage capacity and reduced impedance magnitude. At equivalent monomer concentrations, PEDOT films generated in acetonitrile exhibited a rougher surface texture and better electrochemical performance. Notably, the growth rate of charge storage capacity of PEDOT prepared in acetonitrile relative to the deposited charge density was 2.5 times that of PEDOT prepared in water. These findings could help to the optimization of PEDOT coating preparation to enhance electrode performance.
研究领域:
材料科学
·
电化学
·
神经接口
·
涂层与薄膜
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Polymer Materials
·
2023
·
IF 5
Youxin Li,Wan Peng,Yaning Dong,Birong Fan,Weijian Qian,Xiaoxue Ji,Xiong Lu,Donglin Gan,Pingsheng Liu
Chronic wounds are associated with a metabolically imbalanced physiological microenvironment. However, conventional wound dressings are inadequate for treating chronic wounds due to their weak bioactivity. Electroactive wound dressings are essential for modulating a myriad of biological processes, particularly antioxidant activity and cell migration. Herein, we designed a conductive hydrogel with flexible, biodegradable, and electroactive properties using a mussel-inspired method. This conductive hydrogel was prepared by inducing poly(3,4-ethylenedioxythiophene) (PEDOT) in situ polymerization in the Hofmeister effect-assisted polydopamine-functionalized gelatin hydrogel (Gel-PDA/PEDOT). The hydrogel demonstrated robust mechanical properties with compressive and tensile strengths of 3.8 and 0.13 MPa, respectively, and a conductivity of 68.7 S/m. The addition of PDA and PEDOT to the Gel hydrogel endowed the hydrogel with exceptional antioxidant properties to maintain an intracellular redox balance. Additionally, the Gel-PDA/PEDOT hydrogel, which had favorable biocompatibility, significantly increased the migration and proliferation of fibroblasts due to its electroactive properties. A cell migration experiment was performed to assess whether the flexible and electroactive Gel-PDA/PEDOT hydrogel may be a promising wound dressing in skin wound regeneration. These findings provide a strategy for fabricating a multifunctional hydrogel with potential application in bioelectronics and wound dressings.
研究领域:
生物材料
·
组织工程
·
伤口愈合
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生物医学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 15
·2211023
·
IF 19
Chaojie Yu,Zhiwei Yue,Hong Zhang,Mingyue Shi,Mengmeng Yao,Qingyu Yu,Min Liu,Bingyan Guo,Haitao Zhang,Leqi Tian,Hong Sun,Fanglian Yao,Junjie Li
Currently, although conducting polymers have exhibited potential electrophysiological modulation, designing bioinspired ultra-histocompatible conducting polymers remains a long-standing challenge. Moreover, the water dispersibility, conductivity, and biocompatibility of conducting polymers are incompatible, which restricts their application in tissue engineering. Herein, a multilevel template dispersion strategy is presented to produce poly(3,4-ethylenedioxythiophene):(dextran sulfate/carboxymethyl chitosan) (PEDOT:(DSS/CMCS)) with biocompatibility superior to that of commercial poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) without sacrificing processability and conductivity. The PEDOT:(DSS/CMCS) and oxidized dextran solutions form an injectable PEDOT-based hydrogel (PDCOH) mediated by dynamic covalent imine bonds under mild conditions. The PDCOH has a tissue-matched modulus and conductivity to adapt to the mechanical environment of dynamic tissue and modulate fibrosis-induced electrical decoupling. The PDCOH combined with adipose-derived stem cells demonstrates superior cardiac repair effects over cell suspensions and nonconductive hydrogels, inhibiting ventricular remodeling, reducing fibrous scarring, promoting vascular regeneration, and restoring electrophysiological and pulsatile functions.
研究领域:
材料科学
·
生物材料
·
组织工程
·
心脏病学
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干细胞研究
·
生物医学工程
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2019
·
IF 6.393
Alan Meng,Xiangcheng Yuan,Zhenjiang Li,Kun Zhao,Liying Sheng,Qingdang Li
A binder-free, rapid and low-cost electrodeposition technology for growing 3D porous (Ni-Co) 3 S 4 nanosheets arrays on glassy carbon electrode (GCE) functionalized by reduced graphene oxide-poly (3,4-ethylenedioxythiophene) (rGO-PEDOT) hybrid film is successfully developed to construct a sensor for non-enzymatic glucose sensing. The main experimental variables affected on the electrochemical performance are optimized. Benefiting from the synergistic effect of the new active material system, the unique morphology and the strong combination among (Ni-Co) 3 S 4 , rGO-PEDOT and bare electrode, the sensor constructed under the optimal conditions manifests wide detection range (1–5000 μM), highly sensitivity (938.4 μA mM −1 cm −2 ), rapid response (<1.5 s) and low detection limit (0.503 μM). Additionally, the sensor exhibits outstanding selectivity, stability and reproducibility. Significantly, the detection results of the sensor for glucose in human blood serum are well consistent with that in hospital. This research work opens an attractive strategy to construct nanocomposites, and provide a new insight into the development of the non-enzymatic glucose biosensor with high performance.
研究领域:
材料科学
·
电化学
·
纳米技术
·
生物传感器
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Jianmei Jiang,Yaoming Xiao,Wenjing Yang,Chao Wen,Biye Liu,Lidan Wang,Yunpeng Xu,Xue Zhang,Qixin Zhuang,Jinguo Lin,Zisheng Su,Jeng-Yu Lin
Although the efficiency of perovskite solar cells (PSCs) keeps breaking new records, their stability and cost are still limited by using the conventional hole transport material of 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (Spiro-OMeTAD). Herein, we use 3,4-ethylenedioxythiophene (EDOT) as a solubilizer to enhance the dissolution of lithium bis(trifluoromethane)sulfonylimide (Li-TFSI) and reduce the 4-tert-bultypyridine (TBP) dosage. Then, EDOT undergoes in situ oxidative polymerization to generate PEDOT by an oxidizing agent of iodine (I2). Moreover, I2 can also accelerate the oxidation of Spiro-OMeTAD. Therefore, the generated PEDOT can synergistically enhance hole transport capability with the oxidized Spiro-OMeTAD, and the generated I– ions can compensate for the I vacancies and inhibit the migration of I– in the perovskite film, resulting in an enhanced stability and efficiency of PSCs. A PSC based on the composite hole transport system achieves a power conversion efficiency (PCE) of 24.79%. Moreover, the PSC retains 92% of its initial PCE for over 2000 h under ambient conditions of 25 °C and 35% relative humidity. Furthermore, the quantities of Spiro-OMeTAD and TBP have, respectively, decreased by 24.9 and 37.5% in the composite hole transport system, thereby lowering the production cost of the PSC and facilitating its industrialization development.
研究领域:
材料科学
·
光伏技术
·
高分子化学
·
纳米技术
·
能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DESALINATION
·
2023
·
IF 9.9
Jing Song,Yihan Li,Shihan Wang,Rui Han,Yu Ba,Ying Liu,Shengqiang Fan
Membrane Electro-Bioreactor (MEBR), with dual function of electrochemical in-situ membrane fouling mitigation and pollutants removal by chlorine evolution reaction (CIER), has emerged as a promising technology of treating mariculture wastewater. However, the fouling control mechanism regarding extracellular polymeric substance (EPS) variations and related microbial community is still unclear. In this study, MEBR was developed with conducting anode-membrane modified by CNTs-TiO 2 -PEDOT for fouling resistant and ammonia/nitrite removal. The CIER electroactivity was enhanced that onset potential negatively shifted from 1.12 to 0.98 V vs. SCE (saturated calomel electrode). Ammonia removal rate (71.49 mgN/(L·day)) was 176.8 % higher and nitrite was significantly reduced in MEBR than MBR at HRT of 45 min. Membrane fouling was mitigated in MEBR that operation duration was extended by 40 % compared with MBR. The EPS of cake layer on the membrane surface rather than the biofilters was found the main fouling contributor. The significant reduction in LB-EPSp (65.4 %) in MEBR (33.8 % in MBR) was the dominant factor contributing to membrane fouling alleviation, which highly depended on the relative abundance of Hyphomonas and Hirschia . This study will be beneficial for fouling control in seawater treatment.
研究领域:
环境工程
·
水处理
·
生物技术
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2021
·
IF 9.297
Jingyun Zhao,Zexu Chi,Heng Dong,Changfu Sun,Han Yu,Hongbing Yu
This study explored the depth treatment of desphenly chloridazon (DPC) wastewater by a novel synergetic dual-electrodes electrocatalytic (SDEs) system which consisted of Ni–Sb–SnO 2 /Ti anode (NSSTA) and PEDOT/PSS-CNTs modified activated carbon air diffusion cathode (PP-CNTs AC ADC). NSSTA exhibited an enhanced capability to produce reactive oxygen species (·OH and O 3 ), its O 3 production increased to 6.54 mg/L. PP-CNTs AC ADC was observed to have improved activity of catalyzing oxygen reduction reaction (ORR) with 648.23 mg/L H 2 O 2 generated. Owing to the synergetic effect of O 3 and H 2 O 2 , additional ·OH was obtained in SDEs system through the electro-peroxone reaction. Compared with the single-electrode electrocatalytic (SE) systems, the SDEs system showed superior pesticide degradation performance , higher mineralization current efficiency (MCE) and lower energy consumption (EC). In the SDEs system, the optimal 91.7% of DPC removal efficiency and 90.7% of DPC mineralization efficiency were obtained within 150 min by electrocatalytic oxidation of 17.5 ppm and 25 ppm pesticide wastewater at the current density of 11.94 mA/cm 2 , respectively. The treated water showed reduced acute toxicity than that of the raw wastewater, which suggested that the SDEs system is a promising technology for depth treatment of the pesticide industry effluent with simultaneous decontamination and detoxification realized.
研究领域:
环境工程
·
水处理
·
电化学
·
废水处理
✓ 已验证
产品关联
DOI
高影响因子
ANALYST
·
2014
·Vol. 140
·期 2
·551-559
·
IF 3.906
Yuna Guo,Yu Wang,Su Liu,Jinghua Yu,Hongzhi Wang,Min Cui,Jiadong Huang
A novel electrochemical immunosensor assay (EIA) for highly sensitive and specific detection of Escherichia coli O157:H7 has been developed. This immunosensor is constructed by the assembly of capture antibody on SG–PEDOT–AuNPs composites modified glass carbon electrode. In the presence of target E. coli O157:H7, horseradish peroxidase (HRP)-labeled antibody is captured on the electrode surface to form a sandwich-type system via the specific identification. As a result, E. coli O157:H7 detection is realized by outputting a redox current from electro-reduction of hydrogen peroxide reaction catalyzed by HRP. In our assay, the combination of the unique properties of sulfonated graphene (SG) and gold nanoparticles (AuNPs) can not only accelerate electron transfer on electrode interface, but also provide an excellent scaffold for the conjugation of capture antibody that significantly improves the target capture efficiency and enhances the sensitivity of the biosensor. The results reveal the calibration plot obtained for E. coli O157:H7 is approximately linear from 7.8 × 10–7.8 × 106 colony-forming unit (cfu) mL−1 with the limit of detection of 3.4 × 10 cfu mL−1. In addition, the biosensor has been successfully applied to the quantitative assay of E. coli O157:H7 in synthetic samples (spring water and milk). Hence, the developed electrochemical-based immunosensor might provide a useful and practical tool for E. coli O157:H7 determination and related food safety analysis and clinical diagnosis.
研究领域:
分析化学
·
生物技术
·
食品安全
·
微生物学
·
生物传感器
✓ 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）