JOURNAL OF NANOPARTICLE RESEARCH
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2025
·Vol. 27
·期 1
·1-15
·
IF 2.6
Wu Gui-Lin,Deng Tian-Song,Wang Kun-Peng,Zhang Er-Ji,Liu Li-Yong,Cheng Yu-Chun,Gao Jia-Fei,Liu Jie
Gold nanorods are widely used in surface-enhanced Raman scattering (SERS) applications due to their strong localized surface plasmon resonance (LSPR). The self-assembly of gold nanorods further expands their applications and introduces new ensemble properties. In this paper, two types of gold nanorods with similar lengths but significantly different diameters were used for making superparticles. The gold nanorods were first surface-modified with thiol-terminated polystyrene (PS-SH), and then assembled into superparticles through emulsion volatilization. To test the SERS performances of the gold nanorod superparticles, Nile red was used as a dye molecule to test the localization of the SERS performance of the single superparticles. It was found that as the size of the superparticles increased, the SERS performances also improved, with the final Raman signal intensity reaching up to 2 × 10 6 . When the size of the superparticles was the same, the SERS performance was stronger for superparticles composed of gold nanorods with larger diameters. Additionally, a structure similar to the superparticles was designed for FDTD simulations, and the simulated results were highly consistent with the experimental results, further supporting our conclusions.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2025
·
IF 4.6
Tao Tian,Yifei Mao,Sheng Gong,Liang Zou,Yizong Huang,Yanshan Cui,Jinchao Wei,Peng Li
Although copper is essential for various functions in the human body, excessive intake can damage the nervous and immune systems. In this study, a new fluorescent covalent organic framework probe (DP-TFPB COF) was first reported. Relying on the rational design, the synthesized DP-TFPB COF demonstrates a distinctive fluorescence enhancement effect upon different solvent induction, achieving a quantum yield of up to 20.5 %. Then, a covalent organic framework-based ratiometric fluorescent system was developed, incorporating blue-emitting carbon dots to leverage the fluorescence energy transfer effect. Blue-emitting carbon dots served as the reference signal, while the DP-TFPB COF acted as the response unit, enabling successful quantitative detection of Cu 2+ . The mechanism study demonstrated that fluorescence quenching occurs through an electron transfer process, wherein the covalent organic framework serves as the electron donor and Cu 2+ functions as the electron acceptor. The developed method demonstrated excellent linearity for Cu 2+ within the concentration range of 0.5 to 200 μM, accompanied by a detection limit of 0.38 μM. The robust recognition capabilities exhibited significant effectiveness in the Cu 2+ analysis within herbal plants. The results correspond closely with those obtained using inductively coupled plasma mass spectrometry, thereby emphasizing its potential applicability in real samples with complex matrix.
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Sustainability
·
2025
·Vol. 17
·期 20
·
IF 3.3
Huidi Zhou,Yuqi Gao,Kaili Zhang
Wood flour, a landscaping byproduct, poses disposal challenges due to its poor degradability, despite its potential as a sustainable material. This study modified wood powder by synergistically incorporating fly ash and TiO2, followed by curing it with polyamide and epoxy resin to produce high-performance wood powder-based composites suitable for outdoor furniture applications, it can solve the environmental problems caused by fly ash. The research findings indicated that as the TiO2content increased, the material’s pore size diminished, structural strength improved, and it demonstrated enhanced hydrophobic properties and UV absorption capabilities. The optimal UV absorption performance was observed at a TiO2content of 1.5%. The combination of TiO2and fly ash led to the formation of more stable Si-O-Ti and Si-O-Si bonds, which further strengthened the material. Water contact angle and water repellency tests indicated that the 1.5% TiO2composite showed a 12% increase in compressive strength and a water contact angle of 100.6°, indicating improved hydrophobicity. The addition of TiO2reduced the number of free-OH groups within the matrix, thereby improving the composite’s hydrophobicity. Outdoor chairs fabricated by mixing 1.5% TiO2-modified wood powder with PET for demolding exhibited excellent structural stability while also being safe and environmentally friendly. This study proposes a feasible preparation strategy for wood powder, enhancing durability through improved mechanical strength, water repellency, and UV shielding. Furthermore, it offers valuable insights into the material modification of wood powder-based materials for the production of outdoor garden furniture.
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BIOSENSORS & BIOELECTRONICS
·
2025
·
IF 10.5
Zenghao Xia,Fabo Guo,Xueyin Chen,Fuchao Zhang,Zhize Zhang,Jianfeng Li,Liang Huang,Zhen Xu,Xin Ming,Yuxin Peng
Bodily fluids harbor critical biomarkers that are closely associated with human health. Analyzing their constituents provides valuable health-related insights, serving as a pivotal way for early diagnosis and health assessment. However, traditional wearable biochemical sensing solutions based on digital circuits face issues such as complex manufacturing processes, poor wearing comfort, and difficulties in long-term power supply, thereby limiting their utility in home care and chronic disease monitoring. This work designs a multi-channel, battery-free and wearable fabric biochemical sensor. Activated within magnetic field environment, the sensing fabric transduces biochemical information into electric signals that modulate the resonant circuit parameters, finally shifting the resonant frequency of the circuit. The multiple-ion sensing performance of fabric biochemical sensor was validated through sweat monitoring during physical exercise. The proposed fabric sensor has excellent sensitivity, reliability and minimal cross-channel coupling, offering a promising solution for real-time and routine monitoring of body fluids.
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Journal of Energy Storage
·
2025
·
IF 9.8
Xin-Ying Ren,Min-Peng Li,Wen-Jie Shi,Wei-Hai Yi,Hong-Yan Li,Cai-Xia Zheng,Xiao-Rui Wang,Mao-Cheng Liu,Yu-Xia Hu
Zinc metal is recognized as a highly promising anode material for aqueous zinc-ion batteries due to its high theoretical capacity and favorable oxidation-reduction potential. Nevertheless, uncontrolled zinc dendrite growth and side reactions pose critical challenges to their practical applications. Herein, the amide groups are introduced into microporous polymers (PIM-CONH 2 , denoted PC) via amine functionalization and applied as a surface engineering coating for zinc anodes. The functionalization of amide groups enhances the zincophilicity of the polymer coating through coordination interactions with Zn 2+ , while also forming hydrogen bonds with water molecules to reduce solvation and prevent side reactions. Additionally, the microporous structure of PIM-CONH 2 facilitates the uniform distribution of Zn 2+ , promoting more even ion flow, enhancing dendrite-free zinc deposition, and improving electrochemical stability. Consequently, the PC@Zn||PC@Zn symmetric battery achieves prolonged cycle stability over 1250 h at 0.5 mA cm −2 /0.5 mAh cm −2 . The PC@Zn||Cu asymmetric battery exhibits stable zinc plating/stripping over 2200 cycles at 2.0 mA cm −2 /1.0 mAh cm −2 and achieves an average CE of 99.8 %, which exhibits exceptional Zn plating/stripping reversibility. The PC@Zn||NVO full battery demonstrates outstanding cycling performance, retaining 72 % specific capacity retention after 2000 cycles at 10 A g −1 . This work establishes a generalizable strategy for high-performance zinc metal anodes through rational design of functional microporous polymer interfaces, opening new avenues for sustainable energy storage systems.
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INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Jiahuan He,Chunhong Zhang,Yingying Wang,Yuning Gong,Lanyue Zhang,Hao Liu,A. Yuhui,Lei Shang
Advancing bio-based non-isocyanate polyurethanes (NIPUs) is vital for fostering sustainable development. This study, inspired by the concept of "rigid and flexible" successfully utilized resveratrol , epoxidized soybean oil, and carbon dioxide (CO 2 ) to produce a novel type of NIPUs (CRSOP) with outstanding mechanical properties, recyclability, and adhesive properties . Test results reveal that CRSOP demonstrates a tensile strength of 20.85 MPa and an elongation at break surpassing 160 %. The synthesized CRSOP shows excellent recyclability, with a recycling efficiency of over 80 % even after three cycles. Additionally, the rich polar groups in CRSOP contribute to its exceptional adhesion on diverse substrates such as copper (5.29 MPa), steel (7.48 MPa), aluminum (6.12 MPa), glass (4.71 MPa), and polytetrafluoroethylene (1.75 MPa). Even after prolonged immersion in organic solvents , CRSOP maintains a lap shear strength comparable to the initial value, demonstrating outstanding environmental tolerance. This paper showcases a superior-performing NIPUs derived from renewable resources and simultaneously expands its extensive application in the adhesive field.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2024
·
IF 4.3
Jiajun Chen,Yunxi Cui,Peixuan Wu,Rohan Dassanayake,Peng Yu,Kun Fu,Zhicheng Sun,Yuanyuan Liu,Yang Zhou
Nitroxyl (HNO), the single-electron reduction product of nitric oxide (NO), has attracted great interest in the treatment of congestive heart failure in clinical trials. In this paper, we describe the first coumarin-based compound N -hydroxy-2-oxo-2H-chromene-6-sulfonamide (CD1) as a dualfunctional HNO donor, which can release both an HNO signaling molecule and a fluorescent reporter. Under physiological conditions (pH 7.4 and 37 °C), the CD1 HNO donor can readily decompose with a half-life of ∼90 min. The corresponding stoichiometry HNO from the CD1 donor was confirmed using both Vitamin B 12 and phosphine compound traps. In addition to HNO releasing, specifically, the degradation product 2-oxo-2H-chromene-6-sulfinate (CS1) was generated as a fluorescent marker during the decomposition. Therefore, the HNO amount released in situ can be accurately monitored through fluorescence generation. As compared to the CD1 donor, the fluorescence intensity increased by about 4.9-fold. The concentration limit of detection of HNO releasing was determined to be ∼0.13 μM according to the fluorescence generation of CS1 at physiological conditions. Moreover, the bioimaging of the CD1 donor was demonstrated in the cell culture of HeLa cells, where the intracellular fluorescence signals were observed, inferring the site of HNO release. Finally, we anticipate that this novel coumarin-based CD1 donor opens a new platform for exploring the biology of HNO.
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yue Cheng,Mengfei Zhu,Mengqiao Chi,Yulin Lai,Bing Li,Rui Qian,Zhongrong Chen,Gang Zhao
Thermoresponsive wound dressings with real-time monitoring and on-demand drug delivery have gained significant attention recently. However, such smart systems with stable temperature adjustment and drug release control are still lacking. Here, a novel smart fabric is designed for wound management with thermoresponsive drug delivery and simultaneously temperature monitoring. The triple layers of the fabrics are composed of the drug-loaded thermoresponsive nanofiber film, the MXene-optimized joule heating film, and the FPCB control chip. The precise and stable temperature stimulation can be easily achieved by applying a low voltage (0–4 V) to the heating film, achieving the temperature control ranging from 25 to 130 °C. And the temperature of the wound region can be monitored and adjusted in real time, demonstrating an accurate and low-voltage joule heating capability. Based on that, the drug-loaded film achieved precise thermoresponsive drug release and obtained significant antibacterial effects in vitro. The in vivo experiments also proved the hybrid fabric system with a notable antibacterial effect and accelerated wound healing process (about 30% faster than the conventional gauze group).
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Tianyu Hu,Fang Zou,Jie Yu,Siqian He,Shiyun Lai,Yuanjie Teng,Zaifa Pan
UNCA employs upconversion nanoparticles as signal probes for specific IGF-1 recognition. • Single-molecule counting enables IGF-1 detection with a low LOD of 6.04 pg/mL. • This method exhibits low cross reactivity and good recovery rates in milk products. There is rapidly growing interest in food nutrition assessment, particularly for nutrients present at low abundance. Here, an upconversion nanoprobe counting analysis (UNCA) is designed for ultra-sensitive detection of insulin-like growth factor-1 (IGF-1). The high sensitivity is attributed to the strong fluorescent intensity of upconversion nanoparticles (UCNPs) and highly specific antibody-antigen binding. Core–shell structured UCNPs are synthesized via co-precipitation followed by layer-by-layer epitaxial growth, and detection probes are constructed through hydrophilic ligand exchange and antibody conjugation. Two detection methods, traditional fluorescent intensity detection and single-molecule counting, are established with linear working ranges of 0.05–5000 ng/mL, which reach limit of detections (LODs) of 21.23 and 6.04 pg/mL, respectively. UNCA is further employed for analyzing three representative milk products, achieving recovery of 73.90%–107.09% with coefficients of variation (CVs) between 2.24% and 7.57%. This method demonstrates quantitative detection of trace-level IGF-1, especially via single-molecule counting. Download: Download high-res image (111KB) Download: Download full-size image
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OPTICAL MATERIALS
·
2026
·
IF 4.3
Pengfei Ma,Jian Zhang,Jian Li,Xu Cui,Qian Duan
Porphyrins, as planar macrocyclic compounds with 18π electrons, hold broad application prospects in the field of nonlinear optics. However, their strong self-aggregation properties cause a decrease in nonlinear optics, resulting in limited applications. To overcome this, two D–π–A type conjugated microporous polymers (ZnTFcPP-CMP and ZnTPyPP-CMP) were synthesized via Sonogashira–Hagihara coupling, utilizing ferrocene (Fc) or pyridine (Py) as donors and porphyrins as acceptors. Z-scan measurements (at 50 μJ in DMF) demonstrated that both CMPs exhibit significantly enhanced third-order NLO properties compared to pristine ZnTBrPP. Specifically, ZnTFcPP-CMP achieved a nonlinear absorption coefficient ( β ) of 1.60 × 10 −9 m/W and an imaginary susceptibility ( Im [ χ (3) ]) of 5.86 × 10 −11 esu, representing a 1.68-fold enhancement over ZnTBrPP. Similarly, ZnTPyPP-CMP showed a 1.41-fold increase in NLO performance. This enhancement is attributed to the synergistic effects of photo-induced electron/energy transfer (PET/ET), extended π-conjugation, and the CMP architecture that effectively inhibits porphyrin aggregation. Notably, ZnTFcPP-CMP exhibited a transition from saturable absorption (SA) at 5 μJ to reverse saturable absorption (RSA) at 50 μJ, a switching behavior driven by Pauli blocking and the transition from single-to two-photon absorption. Furthermore, solid-state optical plastic devices were fabricated by incorporating these CMPs into PMMA. At 50 μJ, the ZnTFcPP-CMP/PMMA and ZnTPyPP-CMP/PMMA composites exhibited Im [ χ (3) ] values 1.64 and 1.56 times higher than that of ZnTBrPP/PMMA, respectively. These results demonstrate that the construction of CMPs is a robust strategy for designing high-performance porphyrin-based materials for advanced NLO applications.
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POLYMER DEGRADATION AND STABILITY
·
2026
·
IF 8.1
Zhoufeng Wang,Wenchi Zhang,Puxi Zheng,Hui Xu
A series of amorphous phosphorus- and fluorene-containing copolyarylates was synthesized via low-temperature solution polycondensation to elucidate the effects of phenylphosphonate incorporation on solubility, thermal properties, and degradation behavior. Increasing the phenylphosphonic dichloride (PPD) content improved solubility in DMF and DMAc and decreased the glass-transition temperature ( T g ) from 230.36 to 177.47°C. High initial thermal stability was retained under nitrogen, with T 5% and T 10% values of 487.66–493.67°C and 501.33–507.00°C, respectively. The residue at 800°C increased from 36.54% for AW20P0 to 41.61–44.06% for the phosphorus-containing samples under nitrogen and from 1.27% to 5.15% under air. Comparative pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) analyses of AW20P0 and AW20P20 at 500 and 550°C revealed similar backbone-derived aromatic product families but composition- and temperature-dependent redistribution of their relative abundances, indicating that PPD modifies concurrent degradation reactions rather than introducing an independent pathway. Thermogravimetry-Fourier transform infrared spectroscopy (TG-FTIR) revealed changes in oxygen- and phosphorus-related volatile signals, whereas distinct molecular phosphorus-containing volatiles were not unambiguously identified by Py-GC/MS. X-ray photoelectron spectroscopy showed progressive surface phosphorus enrichment in residues collected after qualitative direct-flame exposure, while scanning electron microscopy revealed increasingly dense and continuous residue structures, with AW20P20 exhibiting an expanded closed-cell morphology. These results support a significant phosphorus-assisted condensed-phase contribution to residue formation, although the relative gas-phase and condensed-phase contributions remain quantitatively unresolved. The established structure–property–degradation relationships provide guidance for designing high-temperature copolyarylates with improved solubility and tunable degradation behavior.
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CHEMICAL PHYSICS
·
2026
·
IF 2.8
Cailan Chen,Lilin Fang,Hanyu Zhang,Peng Cui
Self-targeted strategy: PAHs as precursors for PAH adsorbents. • Monomer selection and carbonization tune porosity (up to 1893 m 2 g −1 ). • CP-NAP-800 captures 49.87% of 16 PAHs from real FCC diesel. Polycyclic aromatic hydrocarbons (PAHs) in FCC diesel were employed as building blocks to construct hypercrosslinked polymers via Friedel–Crafts alkylation. KOH-activated carbonization yielded porous carbons with high surface areas (590–1893 m 2 ·g −1 ) and hierarchical microporosity. The optimized adsorbent, CP-NAP-800 (carbonized at 800 °C), exhibited exceptional adsorption for naphthalene (21.77 mg·g −1 ), anthracene (105.14 mg·g −1 ), and acenaphthylene (30.65 mg·g −1 ). Adsorption followed Langmuir and pseudo-second-order kinetics, indicating monolayer π–π stacking interactions with graphitized carbon. In real FCC diesel, CP-NAP-800 achieved a total capacity of 355.88 mg·g −1 for 16 priority PAHs with 49.87% removal efficiency, and maintained stable performance over six cycles. This work presents a novel self-targeted strategy for PAH capture and recovery, where the pollutants themselves serve as precursors, offering a sustainable remediation approach for the petrochemical industry. Download: Download high-res image (162KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）