Journal of Materials Chemistry C
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2025
·
IF 5.1
Qian Zhou,Hao Feng,Lei Fang,Wei Bao,Kuanjun Fang
The development of wearable electronics, energy storage, and smart sensing has significantly increased the demand for highly conductive circuits on textiles. Silver (Ag) is a preferred material due to its excellent electrical conductivity, antibacterial properties, and biocompatibility. However, the hydrophobic nature and low surface energy of polyethylene terephthalate (PET) fabrics pose challenges for the adhesion of silver particles, limiting the mechanical durability and washability of conductive layers. This study proposes a novel strategy combining the synergetic pretreatment of PET fabrics using reducing agents (ascorbic acid and glucose) and hydroxypropyl methylcellulose (HPMC) to enhance the deposition of silver layers. The reducing agents facilitate the conversion of silver ions to metallic silver, while HPMC forms a uniform film on the fabric surface, providing anchoring points for silver particles through hydrogen bonding. The resulting silver layers exhibit high conductivity, uniformity, and durability, as confirmed by SEM, XRD, and XPS analyses. The treated fabrics demonstrate low electrical resistance and excellent abrasion resistance after multiple washes and rubbing. This method offers a simple, scalable, and cost-effective approach for constructing conductive textiles, with potential applications in wearable electronics and smart sensing.
研究领域:
材料科学
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纺织工程
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电子工程
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高影响因子
POLYMER DEGRADATION AND STABILITY
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2025
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IF 7.4
Yanyan Liu,Hongzhan Huang,Xin Wei,Panpan Gui,Guobin Li,Zhenbang Han,Changhai Xu
Polyethylene terephthalate (PET) fabrics are highly flammable and generate substantial smoke emissions, necessitating effective flame-retardant treatments. In this study, we developed an environmentally friendly strategy to construct a metal-organic framework (MOF)-assisted phosphorus-nitrogen synergistic flame-retardant system on PET fabric. This was achieved through in situ growth of ZIF-8 via a solvent-saving hot-pressing method, followed by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) incorporation using a water-saving supercritical CO 2 technique. Comprehensive characterizations and density functional theory (DFT) calculations demonstrated that ZIF-8 enhances the immobilization and stabilization of DOPO on PET through chemical interactions, resulting in a durable flame-retardant material. The treated fabric demonstrated significantly improved fire safety compared to pristine PET, with a higher limiting oxygen index (LOI, from 21% to 31.6%), reduced peak heat release (20.2%), suppressed peak smoke production (54.1%), and lower average CO yield (79.6% reduction). A dual-phase flame-retardant mechanism (condensed and gas phases) was proposed based on systematic analyses. Importantly, the modified fabric retained its mechanical properties and breathability while acquiring additional functionalities including UV resistance and antibacterial properties. This work presents a sustainable and efficient strategy for designing high-performance, fire-safe textiles via MOF assisted synergistic engineering.
研究领域:
材料科学
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消防安全工程
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纺织化学
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可持续技术
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纳米材料
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Weiqi Chen,Han Hu,Li Cai,Hanxu Zhu,Qingyang Luan,Qi Jiang,Peng Liang,Jie Feng,Jinggang Wang,Jin Zhu
Poly(ethylene terephthalate) (PET) accounts for 8 % of global plastic production and 12 % of solid waste, driving extensive research into innovative recycling strategies. Nonetheless, performance degradation of mechanical recycling and high cost of chemical routes, highlighting the urgent need for cost-effective PET recycling solutions. This study presents a “one-pot” upcycling approach based on hydroxy transesterification, which directly converts PET waste into high-performance copolyesters. A key advantage of this method is the elimination of solvents and the avoidance of complete depolymerization using excess ethylene glycol or methanol. Thermal and mechanical analyses reveal that upcycled poly(ethylene- co -1,4 cyclohexanedimethanol terephthalate) (PETG) exhibits properties comparable to commercial PETG. Furthermore, we successfully synthesized a series of heat-resistance copolyesters using various PET waste sources, rigid diols with varying reactivity (2,2,4,4-tetramethyl-1,3-cyclobutanediol, spiroglycol, and isosorbide)—demonstrating the broad applicability of this strategy. Techno-economic analysis (TEA) and life cycle assessment (LCA) demonstrate a 27.2 % reduction in production costs, along with 68 % and 84 % reductions in global warming potential and fossil fuel depletion, respectively. Overall, this platform provides a sustainable and cost-effective pathway for the upcycling of PET waste.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Shihan Wang,Yuming Dong,Yongfa Zhu,Haifeng Shi
Polyethylene terephthalate is a major source of plastic pollution, posing significant environmental risks and requiring effective degradation methods. In the present work, the CuWO 4-x /Cobalt Phthalocyanine (CoPc) step-scheme (S-scheme) heterojunction was used as a photothermal-assisted photocatalyst to facilitate the degradation of polyethylene terephthalate via peroxymonosulfate activation in a cooperative photocatalytic system. The CuWO 4-x /CoPc sample exhibited optimal polyethylene terephthalate removal efficiency under the illumination conditions, reaching 83 % after the addition of 3 mM peroxymonosulfate. The influence of peroxymonosulfate dosage, aquatic environment, pH, and coexisting anions on polyethylene terephthalate degradation was thoroughly investigated. The X-ray photoelectron spectroscopy (XPS) and radical quenching experiment findings implied that the CuWO 4-x /CoPc composite followed the S-scheme heterojunction charge transfer process. Owing to the formation of the S-scheme heterojunction, the electron and hole transport and separation efficiency in the CuWO 4-x /CoPc photocatalyst was significantly enhanced. Infrared thermography images further revealed that the temperature rise of the solution during the catalytic process resulted from the photothermal property of CoPc, thus enhancing the degradation efficiency of polyethylene terephthalate plastics. Additionally, CuWO 4-x /CoPc demonstrated remarkable reusability and consistency in cycling experiments. This research presents an effective strategy by developing a photothermal-assisted S-scheme heterojunction system for the degradation of waste microplastics in aqueous environments.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2025
·Vol. 36
·期 24
·1-14
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IF 2.8
Ni Xiaoqi,Fu Wenwen,Wang Hui-Ya,Xu Xiangyang,Zhu Yaofeng
The growing demand for intelligent wearable devices has put forward new challenges for flexible and high-performance microwave-absorbing materials. Traditional powder-based electromagnetic wave absorbing materials are restricted by their rigidity and bulkiness, making them unsuitable for intelligent, flexible wearable devices. Herein, flexible ZnO/rGO@PET composite fabrics were successfully fabricated by choosing polyester knitted fabric as an elastic scaffold and then adhering ZnO/rGO through impregnation and hydrothermal treatment process. The morphology of ZnO presents needle, flake, and coralline-clustered structures, which are regulated by controlling the growth rate of ZnO seeds along the c-axis in a strong polar ion environment. Among them, the flake-like ZnO synthesized in a 0.050 mol/L growth solution exhibits a looser porous structure, which would significantly enhance impedance matching and multiple internal reflections. Furthermore, flake-like ZnO has a higher electric dipole moment, which can provide stronger dipole polarization and interface polarization. Notably, the ZnO/rGO@PET composite fabric with flake-like ZnO achieves the optimal minimum reflection loss ( RL min ) of -70.76 dB and an effective absorption bandwidth (EAB) of 4.20 GHz (8.2–12.4 GHz). Furthermore, adjusting the stacking sequence of functional fabric layers could effectively control the electromagnetic parameters and corresponding microwave absorption performance, which is well maintained after repeated washings. This work provides a novel strategy for designing next-generation tunable electromagnetic textiles.
研究领域:
材料科学
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纳米技术
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电磁学
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柔性电子学
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纺织工程
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AICHE JOURNAL
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2026
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IF 4.4
Wenxuan He,Zhixue Teng,Zhifeng Ao,Tiefeng Zhao,Zhigang Shen
Overcoming the enthalpy–entropy compensation effect remains a formidable challenge in chemical upcycling of polyesters. Empirical catalyst designs typically maximize Lewis acidity, lowering activation enthalpy (Δ H ‡) for ester activation but triggering an entropic penalty (Δ S ‡) that retards kinetics. Here, we establish a “moderate acidity” principle that balances these competing thermodynamic demands. Eyring analysis shows that optimal 5% manganese (Mn) doping enables a substantial reduction in Δ H ‡ while mitigating the entropic penalty. Mn-doped zinc oxide (ZnO) catalysts prepared via microfluidic synthesis achieve optimal performance at 5% Mn doping, delivering 100% PET conversion, 94.7% BHET yield, and a space–time yield of 250 g monomer g cat −1 h −1 , twice that of pristine ZnO. Life-cycle and techno-economic assessments demonstrate 3.7-fold lower greenhouse gas emissions and 2.4-fold cost reduction relative to conventional routes. Complete atomic utilization is achieved by valorizing glycolysis mother liquor into high-performance waterborne polyurethanes, establishing a zero-waste circular economy for plastics.
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ACADEMIC RADIOLOGY
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2026
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IF 4.7
Jing Gu,Hui Wang,Yulin He
Rationale and Objective This study utilized micro-positron emission tomography/computed tomography (micro-PET/CT) to track the longitudinal and dynamic progression of cardiac autonomic nerve injury in diabetic rats. Our objective was to map the precise timeline of neural damage relative to disease stages, defining a sensitive imaging window for the early diagnosis of diabetic cardiac autonomic neuropathy (DCAN). Materials and Methods Following streptozotocin induction of type 2 diabetes, rats underwent biweekly micro-PET/CT imaging for up to 17 weeks. Sympathetic and parasympathetic innervations were thoroughly evaluated using [ 11 C]C-MDA and [ 11 C]C-donepezil ([ 11 C]C-DNP), respectively. [ 11 C]C-triphenylmethylphosphonium ([ 11 C]C-TPMP) provided a perfusion baseline to characterize neuro-perfusion mismatches. Quantitative tracer uptake was correlated with histopathological remodeling and the myocardial expression of neurotrophic factors (NGF, GAP-43, CNTF) quantified via quantitative real-time polymerase chain reaction (RT-qPCR). Results Longitudinal PET/CT imaging unveiled a distinct chronological cascade of cardiac deterioration. Parasympathetic denervation ([ 11 C]C-DNP depletion) manifested first at week 6, followed by sympathetic denervation ([ 11 C]C-MDA deficit) at week 8. Conversely, myocardial perfusion deficits ([ 11 C]C-TPMP) remained absent until week 16, escalating to severe metabolic dysfunction by week 17. Histopathology confirmed progressive myocardial inflammation, while RT-qPCR indicated a late-stage, yet insufficient, compensatory upregulation of neurotrophic factors. Conclusion This multi-tracer longitudinal investigation establishes that parasympathetic denervation precedes sympathetic impairment during DCAN development, with both deficits predating microvascular and metabolic crises. These insights offer a critical, noninvasive diagnostic window for early DCAN detection and clinical monitoring.
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2025
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IF 7.8
Zhongqing Shen,Zixian Jia,Lin Gao,Lijiao Qin,Jie Zhang,Haocheng Sun,Jianlei Qi,Jianzhong Yin
Methanolysis of waste poly(lactic acid) (PLA) to produce the non-toxic, biodegradable solvent methyl lactate (MLA) is a promising strategy for waste management. We introduce an efficient, catalyst-free PLA methanolysis approach enhanced by a CO₂ atmosphere, achieving nearly 100 % PLA conversion and a 95.5 % MLA yield. These results represent a significant increase in both conversion and yield compared to reactions conducted without CO₂. Through analytical methods and density functional theory (DFT) calculations, we elucidate the reaction pathways, showing that CO₂ critically enhances the ester exchange between methanol and PLA chains. This enhancement is attributed to CO₂'s role in stabilizing transition states and promoting ester bond scission by forming additional hydrogen bonds, which facilitates efficient MLA formation. Furthermore, this approach's viability for real-world recycling is demonstrated with commercial PLA products, achieving 53.9 % PLA conversion and 17.0 % MLA yield. When applied to mixed plastic waste containing PLA and PET, the process achieves nearly complete PLA conversion with a 79.4 % MLA yield, while also producing the PET-derived product DMT, which can be isolated along with MLA via simple precipitation and distillation. This research presents a sustainable and highly tolerant solution for the chemical recycling of both pure and mixed PLA waste streams.
研究领域:
化学工程
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高分子科学
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可持续化学
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废物管理
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绿色技术
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ACS Applied Materials & Interfaces
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2025
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IF 8.2
Wenzhu Hu,Xingyi Wang,Yuan Feng,Yan Wang,Hao Wang,Lixia Feng,Biao Yang,Yu Gao,Dawei Jiang,Mengting Li,Xiaoli Lan
Triple-negative breast cancer (TNBC), a highly aggressive subtype characterized by rapid invasion, metastatic propensity, and rising incidence, remains challenging due to the absence of targeted therapies. This study introduces a biomimetic nanoprobe coated with hybrid cell membranes (erythrocyte and tumor cell membranes) to enhance immune evasion, tumor targeting, and therapeutic efficacy. The nanoprobe encapsulates chlorin e6 (Ce6) for sonodynamic therapy (SDT) and tirapazamine (TPZ), a hypoxia-activated prodrug, to enable synergistic hypoxia-responsive chemotherapy. Synthesis and characterization of RBCm/4T1m@D-Ce6-TPZ confirm its ability to generate reactive oxygen species (ROS) under ultrasound activation and exert potent cytotoxicity in vitro. Safety evaluation reveals negligible toxicity without ultrasound stimulation. A "click chemistry" enabled pretargeting imaging strategy visualizes in vivo distribution of the biomimetic membrane components, validating immune evasion and tumor-specific accumulation. These findings enabled predictive modeling of therapeutic outcomes. In subsequent experiments, combination SDT/chemotherapy with RBCm/4T1m@D-Ce6-TPZ achieved superior tumor growth inhibition and prolonged survival in murine models compared to monotherapy or single-membrane-coated controls. Ultrasound activation further enhanced efficacy. Notably, treatment mitigated splenomegaly and normalized aberrant immune cell counts, underscoring the critical role of immunomodulation in TNBC management. Hybrid biomimetic nanoprobes can overcome key limitations of TNBC therapy, offering a promising platform for future clinical translation.
研究领域:
肿瘤学
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纳米医学
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转化医学
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分子影像学
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药剂学
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免疫肿瘤学
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DOI
PubMed
高影响因子
APPLIED CATALYSIS A-GENERAL
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2023
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IF 5.5
Xueyang Qi,Yongjun Zhu,Lixin Song,Guixiang Peng,Wenbin Qu,Jie Xiong
The increasing accumulation of waste plastics has a range of negative impacts on the land and marine environments. Solar-driven methods of converting waste into useful chemicals and green energy H 2 are gaining attention due to their efficiency, stability and low cost. Here, flexible nickel phosphide/titanium dioxide/carbon nanofiber (Ni 2 P/TiO 2 /C NFs) film photocatalyst was prepared by electrospinning, heat treatment, hydrothermal method, and phosphate treatment. The obtained Ni 2 P/TiO 2 /C NFs presented a continuous homogeneous fibrous shape with TiO 2 NPs incorporation into the carbon NFs and Ni 2 P NPs coating on the surface of the NFs. The film exhibited promising flexibility and excellent light absorption performance. As a result, the Ni 2 P/TiO 2 /C NFs film was utilized to reform polyethylene terephthalate (PET) into a variety of organic products and clean energy H 2 under alkaline aqueous conditions. In addition, the flexible Ni 2 P/TiO 2 /C NFs film could be easily separated from the solution for recycling, and the stable hydrogen production performance was maintained after multiple cycles. This work applies an inexpensive and recyclable composite photocatalyst to the recycling of waste polyester, which is a crucial step towards the practical application of recyclable photocatalysts in resource recovery.
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Materials Today Communications
·
2022
·
IF 3.662
Rui Wang,Xiaohong Chen,Qiuyu Li,Anying Zhang,Guocong Ma,Yanying Wei,Meiru Qu,Lu Gao,Jianfei Wei
PET-based nitrogen and phosphorus-doped Carbon Dots (NP-CDs) was prepared by solvothermal method with PET waste as raw materials. In terms of structure, NP-CDs were spherical structures with an average particle size of 2.8 nm, and its surface contains amino groups. The as-prepared NP-CDs exhibit excitation-independent emission properties from 300 nm to 430 nm, and the optimal excitation and emission wavelength was 340 nm and 460 nm. In terms of application, the as-prepared NP-CDs could be used to a pH sensor in the range of 2.3–12.3. When NP-CDs were dispersed in polyvinyl alcohol (PVA) matrix, excellent light blocking films(LBFs) for UV and blue light were obtained. When the ratio of NP-CDs is 14 %, it still does not affect the line of sight, and the barrier rate to UV(380 nm) and blue(430 nm) light is as high as 90% and 80 %. In addition, the WLED device with a colour coordinate of (0.29,0.32) and a colour temperature of 8022 K can be obtained with the combination of NP-CDs dispersed in PVA matrix and 395 nm LED chips.
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Frontiers in Oncology
·
2023
·
IF 4.7
Liu Zhenfeng,Wen Guanghua,Huang Yuqiao,Dong Yanzhao,Wang Zewei,Alhaskawi Ahmad,Zhang Shuyi,Wang GuoLin,Ye Qianni,Zhou Haiying,Lu Hui,Dong Mengjie
Background: The cell adhesion molecule (CAM) N-cadherin has become an important target for tumor therapy. The N-cadherin antagonist, ADH-1, exerts significant antitumor activity against N-cadherin-expressing cancers.Methods: In this study, [18F]AlF-NOTA-ADH-1 was radiosynthesized. An in vitro cell binding test was performed, and the biodistribution and micro-PET imaging of the probe targeting N-cadherin were also studied in vivo.Results: Radiolabeling of ADH-1 with [18F]AlF achieved a yield of up to 30% (not decay-corrected) with a radiochemical purity of >97%. The cell uptake study showed that Cy3-ADH-1 binds to SW480 cells but weakly binds to BXPC3 cells in the same concentration range. The biodistribution results demonstrated that [18F]AlF-NOTA-ADH-1 had a good tumor/muscle ratio (8.70±2.68) in patient-derived xenograft (PDX) tumor xenografts but a lower tumor/muscle ratio (1.91±0.69) in SW480 tumor xenografts and lowest tumor/muscle ratio (0.96±0.32) in BXPC3 tumor xenografts at 1 h post-injection (p.i.) These findings were in accordance with the immunohistochemistry results. The micro PET imaging results revealed good [18F]AlF-NOTA-ADH-1 tumor uptake in pancreatic cancer PDX xenografts with strong positive N-calcium expression, while lower tumor uptake in SW480 xenografts with positive expression of N-cadherin, and significantly lower tumor uptake in BXPC3 xenografts with low expression of N-cadherin, which was consistent with the biodistribution and immunohistochemistry results. The N-cadherin-specific binding of [18F]AlF-NOTA-ADH-1 was further verified by a blocking experiment involving coinjection of a non radiolabeled ADH-1 peptide, resulting in a significant reduction in tumor uptake in PDX xenografts and SW480 tumor.Conclusion: [18F]AlF-NOTA-ADH-1 was successfully radiosynthesized, and Cy3-ADH-1 showed favorable N-cadherin-specific targeting ability by in vitro data. The biodistribution and microPET imaging of the probe further showed that [18F]AlF-NOTA-ADH-1 could discern different expressions of N-cadherin in tumors. Collectively, the findings demonstrated the potential of [18F]AlF-NOTA-ADH-1 as a PET imaging probe for non-invasive evaluation of the N-cadherin expression in tumors.
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高影响因子
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