INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Junjie He,Mingfei Chu,Jianqiang Pan,Lijuan Deng,Yiyao Wang,Wenjun Huang,Kehao Jiang,Fangli Sun,Yan Zhang
As an important thermosetting resin, epoxy resin can be impregnated into wood porous structures and cured upon heating to produce high-performance or functional wood composites. To obviate potential environmental hazards associated with volatile organic compound (VOC) emissions during processing, a waterborne epoxy resin (WEP) system containing lignin-based curing agent was designed in this work. The aminated lignin (AL) obtained via the Mannich reaction was well dispersed in the WEP matrix, forming stable waterborne epoxy emulsions. Following the curing reaction between WEP and AL, the resulting films exhibited good chemical stability, indicative of the formation of AL-WEP crosslinked network structures. Dimensionally stable and UV-resistant wood composites were achieved via the impregnation and in-situ curing reaction of AL-WEP emulsion. The anti-swelling efficiency of the wood composites reached 37.9%, and the flexural strength and modulus increased by 59.6% and 49%, respectively, relative to the unmodified wood sample. Furthermore, the wood composites demonstrated favorable UV blocking and resistance performance, attributable to the incorporation of lignin chains containing aromatic skeletons and phenolic hydroxyl groups into the epoxy network and wood structures. This work effectively integrated the respective merits of lignin and WEP into wood, thereby providing a new strategy for the preparation of wood composites with the ability to resist deformation and UV radiation.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
·
IF 8.7
Sen Qun,Song Liu,Lijia Yang,Meiru Du,Jiani Zhou,Yu Zhu,Ying Ling,Liping Yuan,Shaohua Zeng,Jun Guan
Epoxy-functionalized carbon dots (OCDs) are synthesized via a hydrolytic condensation. • OCDs provide robust chemical interfacial bridges between PLA and PBAT. • Nanoscale OCDs cores refine the phase morphology via physical interactions. • Interfacial compatibility between PLA and PBAT is enhanced via a synergy of physical and chemical interactions. • OCDs give PLA/PBAT-based composites superior UV resistance. Biodegradable polymers like poly(lactic acid) (PLA) and poly(butylene adipate- co -terephthalate) (PBAT) hold significant promise for sustainable medical materials; however, their widespread application, particularly in demanding fields such as medical packaging materials, is hindered by inherent challenges including poor interfacial compatibility in blends and a general lack of functional properties like ultraviolet (UV) resistance. To address these limitations, this work introduced an innovative interfacial engineering strategy utilizing epoxy-functionalized carbon dots (OCDs) as a multifunctional compatibilizer for blending PLA and PBAT. The surface epoxy groups of OCDs underwent in-situ ring-opening reactions with terminal functional groups of PLA and PBAT during melt processing, establishing robust covalent bridges that fundamentally enhanced interfacial adhesion. This chemical compatibilization, synergized with the nanoscale effect of well-dispersed OCDs, led to a remarkable improvement in mechanical properties, with optimal increases of 47.7% in tensile strength and 23.4% in tensile modulus. Simultaneously, the intrinsic UV absorption of OCDs conferred exceptional UV-resistant capability to the PLA/PBAT-based composite, with absorption intensities at key wavelengths enhanced by up to 775%. Furthermore, the PLA/PBAT-based composites demonstrated modified thermal degradation behavior and improved melt strength. This multifunctional OCDs-filled PLA/PBAT composite integrated enhanced mechanical properties and excellent UV-resistant performance, demonstrating significant potential for advanced medical applications.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Yizhuo Li,Bojun Zhang,Jinchan Zhao,Zhenyu Dai,Shiliang Mei,Wanlu Zhang,Sinong Wang,Ruiqian Guo
Yellow-emissive carbon quantum dots were fabricated via one-pot hydrothermal method with base-catalyzed molecular fusion • YCQDs@PVA films enable strong absorption of 200–460 nm light, blocking photon energy inducing dye chromophore degradation • Elucidates the fading of dyed cultural relics and the protective mechanism of YCQDs@PVA films at the molecular level • Films exhibit high light-shielding efficiency, biocompatibility, and flexibility for non-invasive heritage protection As essential components of cultural heritage, dyed artifacts preserve valuable historical information. However, the inherent instability of natural dyes makes their long-term preservation challenging, as they are highly susceptible to photodegradation and oxidative damage, leading to fading and loss of cultural value. In this work, yellow-emissive carbon quantum dots (YCQDs) with an emission peak at 550 nm were synthesized via a one-pot hydrothermal method using a base-catalyzed molecular fusion strategy. The YCQDs exhibited strong absorption in the ultraviolet (UV, 200–400 nm) and high-energy blue light (HEBL, 400–460 nm) regions, effectively shielding dyes from light-induced damage. YCQDs were further incorporated into polyvinyl alcohol (PVA) to form YCQDs@PVA composite films, which were applied to gardenia-dyed paper colored with a representative natural dye. The films displayed excellent protection under UV, white LED and blue LED aging conditions. Ultraviolet-visible (UV–Vis) absorption spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, and liquid chromatography-mass spectrometry (LC-MS) analyses revealed the main chromophores of gardenia yellow and further elucidated that the YCQDs@PVA films effectively suppressed oxidative cleavage and cis-trans isomerization of conjugated double bonds. This study proposes a novel strategy for employing carbon quantum dots for the long-term preservation of dyed cultural relics, highlighting the promising potential of nanocomposite materials in heritage conservation. Download: Download high-res image (174KB) Download: Download full-size image
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ADVANCED ENGINEERING MATERIALS
·
2026
·
IF 3.6
Yuxuan Wang,Zhenjie Wang,Qingfeng Hao,Xiyu Song,Yunxiang Yin,Hongjuan Zhang,Ruyi Xie
Nowadays, superhydrophobic textiles are widely applied in various fields such as oil–water separation, ultraviolet protection, and self-cleaning surfaces. However, the development of multifunctional textiles that integrate durable performance with wearing comfort remains a significant challenge. To address this issue, a low-liquid-supply preparation strategy was proposed. Superhydrophobic polyester fabrics were fabricated by atomization spraying zinc nitrate hexahydrate and 2-methylimidazole onto the fabric surface, followed by the in situ introduction of polydimethylsiloxane at room temperature. The scanning electron microscopy images showed the formation of ZIF-8/PDMS rough structures on the fiber surface without blocking the original gap structures of the PET fabric. The modified PET fabrics exhibited robust superhydrophobicity even after 100 washing cycles and 10 000 abrasion cycles. Moreover, the superhydrophobic fabrics exhibited excellent self-cleaning and antifouling properties, remarkable ultraviolet protection performance, and high oil/water separation efficiency. Notably, the UPF value of the modified fabric reached 782.68, demonstrating exceptional UV protection by blocking 99.9% of ultraviolet radiation. The oil–water separation efficiencies of the prepared PET fabric reached 97.8% for n -hexane and 98% for chloroform even after 20 cycles. Despite the functional modifications, the PET fabric retains favorable air permeability. This method offers a promising approach for achieving a balance between multifunctionality and wearing comfort in textile design.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Qiaozhang She,Zhendong Hu,Qixi Zheng,Fanghui Lei,Yuxin Wu
The limited compatibility between lignin and hydrophilic polysaccharide–polymer matrices restricts the development of high-performance bio-based packaging films. Here, we propose a green strategy that incorporates solvent-fractionated alkaline lignin (F-AL) into konjac glucomannan (KGM)/polyvinyl alcohol (PVA) films through citric acid (CA)-mediated ester crosslinking. Fractionation using acetone/water enriched phenolic hydroxyl groups and reduced molecular weight, thereby enhancing lignin reactivity toward CA and improving its dispersion in the PVA/KGM matrix. FTIR and SEM analyses confirmed the formation of a denser crosslinked network and markedly improved interfacial compatibility. As a result, the optimized PKFAL6 film exhibited high tensile strength (40.27 MPa), a 54.8% reduction in water vapor permeability, and a low swelling ratio (112.47%). The enriched phenolic structure of F-AL imparted strong antioxidant activity (up to 85.6% DPPH scavenging) and excellent UV-blocking ability (91.4% UVB; 58.9% UVA). Soil-burial tests revealed a two-stage degradation behavior, with slower early-stage mass loss due to antimicrobial effects and accelerated degradation after network cleavage. These results demonstrate that lignin fractionation is an effective strategy for creating sustainable films with enhanced soil degradation performance and improved functional properties for active packaging.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Yibo Qin,Pengxiang Shi,Lijian Sun,Dongmei Yang,Shujun Li,Xueren Qian
In this study, an anti-photooxidative green food packaging material based on carboxymethyl cellulose (CMC) and vanillin (VA) was successfully fabricated, with simultaneous antibacterial and antioxidant properties. The ultraviolet-shielding (UV-shielding) performance of the composite films was systematically evaluated at pH 5.0, 7.0, 8.5, and 11.5, revealing that alkaline conditions markedly enhanced UV-shielding capacity of the films. In comparison with the control group, the incorporation of VA significantly reduced the UV transmittance of the composite films while maintaining excellent transparency. Specifically, the modified film achieved 100% UV-shielding efficacy for UVC and UVB, and 99.7% for UVA, while maintaining a transparency of over 80%. They demonstrated significant antibacterial activity against Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ). Additionally, the films exhibited robust antioxidant capacity, with 2,2′-azinobis (3-ethylbenzothiazoline-6-sulfonate) (ABTS + ) radical scavenging ratios of 55.34–99.10% and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging ratios of 14.69–44.60%. Practical validation experiments revealed that the composite films effectively mitigated UV-induced degradation of photosensitive nutrients (anthocyanins and vitamin C) and extended the shelf life of strawberries to 7 days at 25 °C (vs. 3–4 days for unpacked group), while retaining 30% more vitamin C. In summary, this study offers a green, cost-effective and sustainable approach to preparing high-performance UV-shielding food packaging films.
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FOOD CHEMISTRY
·
2026
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IF 10.4
Yunpeng Xu,Dongbo Zhang,Shuping Mei,Jing Yu,Qiu Liu,Jicheng Yu
Photodeposited Pt/TiO₂ rings degraded 94.98% of LEV within 40 min. • Pt modification enhanced UV activity with low Pt leaching. • Dark controls and scavenger tests supported ROS-driven degradation. • LC–MS detected 18 products and supported five tentative pathways. • QSAR predicted reduced bioaccumulation for most products. A recoverable Pt/TiO 2 porous ceramic composite was prepared by photodeposition for ultraviolet (UV)-driven degradation of levofloxacin (LEV). The catalyst was characterized by structural, microscopic, surface, optical and elemental analyses, and its activity, stability, reactive species, transformation products and predicted toxicity were evaluated. Pt deposition preserved the anatase/rutile structure of P25 TiO 2 , introduced dispersed metallic Pt, enhanced long-wavelength absorption and improved LEV removal. Under optimized conditions (1.0 wt% Pt, 2.0 g/L catalyst, pH 9.0), 94.98 ± 0.56% of LEV was degraded within 40 min, outperforming TiO 2 . The composite retained high activity over six cycles with low Pt leaching. Scavenger tests indicated that •OH was the dominant reactive species, with h + and •O 2 − also contributing. LC–MS detected 18 transformation products and supported five tentative degradation pathways. Quantitative structure–activity relationship (QSAR) predictions predictions suggested reduced bioaccumulation and lower mutagenicity/developmental-toxicity concerns for several terminal products, although experimental toxicity validation remains necessary.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122633
·
IF 7.5
Xiaoxuan Li,Ying Lv,Jiaxin Du,Xuelian Chen,Meixia Xiao,Shubin Lei
Defect engineering coupled with heterojunction construction represents a pivotal strategy for optimizing the charge separation dynamics of photocatalysts. Herein, we report the fabrication of a novel Z-scheme heterojunction composed of bismuth-based metal-organic frameworks (NOTT-220) and layered Bi 2 O 2 [BO 2 (OH)] nanosheets via a hydrothermal approach. To further potentiate the photocatalytic activity, surface oxygen vacancies (OVs) were precisely introduced into the heterostructure through controlled ultraviolet (UV) irradiation. This defect-rich engineering strategy significantly broadened the visible-light absorption range and facilitated the separation of photogenerated carriers. Consequently, the optimized catalyst (OVs-BN-20) exhibited a superior photocatalytic reaction rate constant of 0.8133 min −1 , achieving 95.9% degradation rate of CIP within 2 h. Detailed mechanistic investigations, including liquid chromatography-mass spectrometry (LC-MS) and electron spin resonance (ESR), elucidated the degradation pathways and confirmed the synergistic role of superoxide radicals (·O 2 -) and photogenerated holes (h + ). This work not only provides a facile pathway for designing defect-modulated Z-scheme photocatalysts but also offers profound insights into the mineralization mechanisms of persistent antibiotic pollutants.
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POLYMER DEGRADATION AND STABILITY
·
2026
·
IF 8.1
Fang-Ling Li,Wan-Meng Song,Bo Jiang,Ying-Jun Xu,Bin Zhao,Yun Liu
The modified viscose fibers show durable flame retardancy. • They also exhibit significantly enhanced ultraviolet resistance. • A phosphorus-nitrogen synergy promotes char formation. • The modification retains mechanical strength and whiteness. • This offers a cleaner route for multifunctional fibers. Viscose fiber is inherently highly flammable, and conventional post-finishing flame-retardant treatments often suffer from limited washing durability. To overcome these drawbacks, a triazole-containing cyclotriphosphazene derivative (HTDA) was synthesized and incorporated to fabricate flame-retardant viscose fiber as a multifunctional additive via blend wet spinning. This incorporation does not impair spinnability, and the resulting fibers simultaneously achieve durable flame retardancy and markedly enhanced ultraviolet resistance. At an HTDA loading of 20 wt.%, the limiting oxygen index reaches 30.4% and remains as high as 30.3% even after 50 laundering cycles, evidencing excellent wash durability. Cone calorimetry further confirms outstanding fire safety: compared with neat viscose fiber, the modified fiber shows a 42% reduction in peak heat release rate and a 39% decrease in total heat release. In addition, the ultraviolet protection factor significantly increases from 11 to 68, while the retention of single-fiber breaking strength exceeds 80%, meeting the basic requirements for textile applications. Mechanistic investigations reveal that HTDA acts through a phosphorus–nitrogen synergistic pathway in both the condensed and gaseous phases, promoting char formation and effectively suppressing combustion. Overall, this work provides a sulfur-free, post-finishing-free strategy for producing multifunctional high-performance viscose fibers with durable flame retardancy and enhanced UV protection.
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Foods
·
2025
·Vol. 14
·期 13
·2192
·
IF 5.1
Aihemaitijiang Aihaiti,Yuanpeng Li,Xinmeng Huang,Yuting Yang,Ailikemu Mulati,Jiayi Wang
Pomegranates are rich in nutrients and classified among ready-to-eat fruits and vegetables. Although this ready-to-eat produce offers convenience, it presents risks associated with pathogenic microorganisms, highlighting the need for pre-sale disinfection. Ultraviolet light-emitting diodes (UV-LEDs) constitute an innovative non-thermal processing technology for food products, offering reduced heat generation and lower energy consumption compared to traditional ultraviolet (UV) irradiation methods. This study analyzed the effects of UV-LED technology on pomegranate seed quality over 0 to 5 days of storage. The results demonstrated significant increases in anthocyanins, polyphenols, ascorbic acid, and the antioxidant capacity in pomegranate following treatment, peaking on day 3. In contrast, the control group showed declining trends. After treatment, the aerobic mesophilic counts and counts of mold and yeast levels during storage measured between 2.73–3.23 log CFU/g and 2.56–3.29 log CFU/g, respectively, significantly lower than the control group. Non-targeted metabolomic analysis showed that UV-LED treatment prompted modifications in the biosynthetic pathways of flavonoids, flavonols, and anthocyanins. The expression of peonidin-3-O-rutinoside chloride increased by 46.46-fold within the anthocyanin biosynthesis pathway. In conclusion, UV-LED treatment represents a potential approach to the disinfection of ready-to-eat fruits and vegetables.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Li-Wei Su,Tian-Yu Su,Zheng Zhao,Ming-Hao Liu,Rui-Guang Xing,Xin Ge,Li-Na Jia,Ya-Hui Li,Jin-Xiao Bao,Gao-Fei Pan
High fire safety, aging resistance, and excellent mechanical properties are particularly important for polyurethane elastomers in electronic encapsulation and membrane materials. Here, we synthesized a polyurethane elastomer material with enhanced mechanical properties, as well as better fire safety and UV aging resistance through the design of nitrogen and phosphorus-containing elemental chain extenders (BFPP and AHMT) and the incorporation of cerium oxide nanoparticles. Sample APU-BFPP-4 spiked with 1.25% AHMT, 2.5% BHPP, and 5% cerium oxide nanoparticles can pass the UL-94 V-0 rating and the LOI increases to 27.5%. The PHRR and THR of the APU-BFPP composites were lower than those of PU by 6.42% and 14.56%, respectively. Meanwhile, the addition of cerium oxide nanoparticles can effectively improve the UV shielding and mechanical properties of polyurethanes; the APU-BFPP composites can achieve 100% UV shielding in the full UV band, and the mechanical properties can reach 30 MPa. In order to investigate the flame-retardant mechanism, the condensed phase and gas phases of PU elastomer combustion have been analyzed; the results showed that the flame-retardant mode of the APU-BFPP composites was mainly dominated by the trapping of fuel free radicals and the carbon layer blocking effect. Compared with the flame-retardant PU composites that have been reported, APU-BFPP composites have achieved a better balance between efficient flame retardancy, UV protection properties, and good mechanical properties, which makes it perform well in electronic encapsulation and membrane materials.
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2025
·
IF 11.3
Shichang Li,Shuxian Zhang,Hanyue Li,Nuoya Yin,Renjun Yang,Yang Zhang,Magdalena J. Koziol,Francesco Faiola
Ultraviolet filters (UVFs) are extensively employed in personal care products, coatings, and food packaging materials, raising increasing concerns regarding developmental vulnerability due to their frequent detection in breast milk and amniotic fluid. This study systematically evaluated the developmental neurotoxicity of representative benzophenone, benzotriazole, and triazine UVFs using human embryonic stem cell (hESC) differentiation models. The dynamic trajectories of both central and peripheral nervous system (CNS and PNS) development were tracked, revealing that UVFs induced an imbalanced CNS/PNS lineage commitment, with UV-328 particularly causing disruptions through direct modulation of the WNT signaling pathway. In the PNS, 10 nM UV-328 significantly inhibited proliferation and migration in neural crest cells by preventing E-cadherin downregulation. Conversely, in the CNS, BP-3, UV-328, and BEMT promoted aberrant midbrain differentiation by upregulating FOXA2, LMX1A, CORIN, OTX2, and EN1 expression, while impairing late-stage dopaminergic neuron specification by downregulating TH. These findings elucidate the molecular mechanisms underlying benzophenone, benzotriazole, and triazine UVF-induced developmental neurotoxicity and underscore the critical need to evaluate the environmental impact and safety of UVFs during sensitive developmental stages. Additionally, this study highlights the potential links between UVF exposure and neurological disorders, emphasizing the importance of continued investigation in this field to inform environmental policies and public health strategies.
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高影响因子
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