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学者姓名：靳艳巧
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Abstract ：
In order to overcome the performance barriers of polylactic acid (PLA), a multifunctional layered chitosan derivative, DAMC-Al, is synthesised and used as an intumescent flame retardant. The acid sources used in this work are 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and amino trimethylene phosphonic acid, which act synergistically to facilitate the conversion of chitosan to carbon. The combustion tests demonstrate that the PLA/ 5DAMC-Al exhibits excellent flame-retardancy with a limiting oxygen index of 30.3 % and a UL-94 flammability rating of V-0. The heat release rate and total heat release are significantly reduced compared to pure PLA, and the residual carbon expands rapidly. In addition, the composite has improved toughness while maintaining the stiffness of the PLA substrate, with a 31.0 % increase in elongation at break. DAMC-Al can also effectively block the transmission of 95 % of ultraviolet lights, protecting the PLA macromolecular chain from high-energy ultraviolet damage. Actually, the ultraviolet protection factor of PLA/5DAMC-Al is determined to be as high as 51.43. Furthermore, the soil degradation tests show that PLA/5DAMC-Al has the same excellent natural degradation properties as PLA.
Keyword ：
Chitosan Chitosan Degradation Degradation Flame retardant Flame retardant PLA PLA UV Resistance UV Resistance
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| GB/T 7714 | Li, Qian , Zheng, Jing , Huang, Zejie et al. A multifunctional layered chitosan derivative for overcoming the performance barriers of polylactic acid [J]. | POLYMER DEGRADATION AND STABILITY , 2025 , 234 . |
| MLA | Li, Qian et al. "A multifunctional layered chitosan derivative for overcoming the performance barriers of polylactic acid" . | POLYMER DEGRADATION AND STABILITY 234 (2025) . |
| APA | Li, Qian , Zheng, Jing , Huang, Zejie , Hu, Libo , Jin, Yanqiao , Xiong, Lei . A multifunctional layered chitosan derivative for overcoming the performance barriers of polylactic acid . | POLYMER DEGRADATION AND STABILITY , 2025 , 234 . |
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Conventional tumor therapeutic modalities, such as radiotherapy, chemotherapy, and surgery, involve low tumor inhibition efficiency, non-targeted drug delivery, and side effects. The development of novel and practical nano-drug delivery systems (DDSs) for targeted tumor therapy has become particularly important. Among various bioactive nanoparticles, chitosan is considered a suitable candidate for drug delivery due to its non- toxicity, good biocompatibility, and biodegradability. The amino and hydroxyl groups of chitosan endow it with the diverse function of chemical modification, thereby improving its physical and biological properties to meet the requirements of advanced biomedical applications. Therefore, it is necessary to review the property and applications of chitosan-based materials in biomedicine. In this review, the characteristics of chitosan related to its applications are first introduced, and then the preparation and modification of chitosan-based nanoparticles, including the function tailoring of chitosan-modified nanoparticles, are demonstrated and discussed. Finally, the opportunities and challenges of chitosan-based nanomaterials in this emerging field are proposed from the perspective of the rational and systematic design for the biomedicine field.
Keyword ：
biocompatibility biocompatibility cancer treatment cancer treatment Chitosan Chitosan nano-drug delivery systems (DDSs) nano-drug delivery systems (DDSs) nanoparticles nanoparticles targeted delivery targeted delivery
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| GB/T 7714 | Lai, Chunmei , Lin, Simin , Liu, Wei et al. Research Progress of Chitosan-based Multifunctional Nanoparticles in Cancer Targeted Therapy [J]. | CURRENT MEDICINAL CHEMISTRY , 2024 , 31 (21) : 3074-3092 . |
| MLA | Lai, Chunmei et al. "Research Progress of Chitosan-based Multifunctional Nanoparticles in Cancer Targeted Therapy" . | CURRENT MEDICINAL CHEMISTRY 31 . 21 (2024) : 3074-3092 . |
| APA | Lai, Chunmei , Lin, Simin , Liu, Wei , Jin, Yanqiao . Research Progress of Chitosan-based Multifunctional Nanoparticles in Cancer Targeted Therapy . | CURRENT MEDICINAL CHEMISTRY , 2024 , 31 (21) , 3074-3092 . |
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Lignin is continuously investigated by various techniques for valorization due to its high content of oxygencontaining functional groups. Catalytic systems employing hydrolysis-hydrogenolysis, leveraging the synergistic effect of redox metal sites and acid sites, exhibit efficient degradation of lignin. The predominance of either hydrolysis or hydrogenolysis reactions hinges upon the relative activity of acid and metal sites, as well as the intensity of the reductive atmosphere. In this study, the Pd-MoOx/TiO2 catalyst was found to primarily catalyze hydrolysis in the lignin depolymerization process, attributed to the abundance of moderate acidic sites on Pd and the redox-assisted catalysis of MoOx under inert conditions. After subjecting the reaction to 240 degrees C for 30 h, a yield of 48.22 wt% of total phenolic monomers, with 5.90 wt% consisting of diphenols, was achieved. Investigation into the conversion of 4-propylguaiacol (4-PG), a major depolymerized monomer of corncob lignin, revealed the production of ketone intermediates, a phenomenon closely linked to the unique properties of MoOx. Dehydrogenation of the propyl is a key step in initiating the reaction, and 4-PG could be almost completely transformed, accompanied by an over 97 % of 4-propylcatechol selectivity. This distinctive system lays a new theoretical groundwork for the eco-friendly valorization of lignin.
Keyword ：
4-Propylguaiacol 4-Propylguaiacol Hydrogen-free Hydrogen-free Hydrogenolysis Hydrogenolysis Hydrolysis Hydrolysis Ketone Ketone Lignin Lignin
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| GB/T 7714 | Tang, Daobin , Lin, Xuebin , Zhang, Qi et al. Hydrolysis-dominated catalytic system: Hydrogen-free hydrogenolysis of lignin from Pd-MoO x /TiO 2 [J]. | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2024 , 267 . |
| MLA | Tang, Daobin et al. "Hydrolysis-dominated catalytic system: Hydrogen-free hydrogenolysis of lignin from Pd-MoO x /TiO 2" . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 267 (2024) . |
| APA | Tang, Daobin , Lin, Xuebin , Zhang, Qi , Wang, Zhenni , Liu, Yuhang , Jin, Yanqiao et al. Hydrolysis-dominated catalytic system: Hydrogen-free hydrogenolysis of lignin from Pd-MoO x /TiO 2 . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2024 , 267 . |
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The design of a highly active Cu -Co catalyst for catalytic transfer hydrogenolysis of lignin without the use of external hydrogen remains highly challenging. In this work, Cu 2 O was initially encapsulated in ZIF-67, and subsequently Cu 2 O@ZIF-67 was utilized as a precursor and sacrificial template to prepare the unique double core-shell hollow nanocage CuO@Co 3 O 4 . Co and Cu, serving as Lewis acid sites and dehydrogenation sites for the hydrogen -donor solvent isopropanol, respectively, exhibited synergistic enhancement, further increasing the catalytic activity. Under the optimal conditions of 220 degrees C, 1 MPa N 2 , and 4 h, the catalyst achieved 100 % conversion of 2-phenoxy-1-phenylethanol and 100 % yield towards cyclohexanol and ethylbenzene. Furthermore, the catalyst remained stable and reusable after 5 cycles, providing a practicable guidance for the valueadded conversion of lignin.
Keyword ：
C-O bonds cleavage C-O bonds cleavage CuCo-based catalyst CuCo-based catalyst Double core-shell hollow nanocage structure Double core-shell hollow nanocage structure Lignin Lignin
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| GB/T 7714 | Chen, Feng , Lin, Xuebin , Chen, Wei et al. Double core-shell hollow nanocage CuO@Co 3 O 4 for the selective hydrogenolysis of C-O bonds of lignin without external hydrogen [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 491 . |
| MLA | Chen, Feng et al. "Double core-shell hollow nanocage CuO@Co 3 O 4 for the selective hydrogenolysis of C-O bonds of lignin without external hydrogen" . | CHEMICAL ENGINEERING JOURNAL 491 (2024) . |
| APA | Chen, Feng , Lin, Xuebin , Chen, Wei , Wen, Na , Jin, Yanqiao . Double core-shell hollow nanocage CuO@Co 3 O 4 for the selective hydrogenolysis of C-O bonds of lignin without external hydrogen . | CHEMICAL ENGINEERING JOURNAL , 2024 , 491 . |
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To improve the comprehensive properties of polybutylene furandicarboxylate (PBF), 2,5-furandicarboxylic acid (2,5-FDCA), and aliphatic chain diol 1,8-octanediol and 1,4-butanediol were used as monomers to synthesize a series of bio-based polybutylene glycol-octanediol 2,5-furandicarboxylate (PBOF). The results showed that the chemical composition of PBOF could be controlled through the molar ratio of monomers. Compared with PBF, as the proportion of octanediol segments gradually increased, PBOF could gradually transform from semi-crystalline thermoplastic to amorphous form, and the glass transition temperature (Tg) gradually decreased. The crystallization ability reduced but a part of the crystal area was still retained. The copolyesters still has a decomposition temperature above 370 degrees C, indicating excellent thermal stability. The introduction of the octanediol segment significantly improved the tensile mechanical properties and flexibility of the POBF copolyester. These meet the requirements for the preparation of bio-based engineering plastics. The water absorption rate of PBOF showed that it may have certain degradable potential. PBOF copolyesters have potential application prospects in bio-based medical plastics and biodegradable packaging polymer materials after copolymerization modification. A series of high-value bio-based copoyesters were prepared from a kind of sustainable raw material, 2,5-furandicarboxylic acid. image
Keyword ：
bio-based polymers bio-based polymers biomass utilization biomass utilization copolyesters copolyesters furan dicarboxylic acid furan dicarboxylic acid polycondensation polycondensation
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| GB/T 7714 | Xu, Jia , Zou, Haitao , Jin, Yanqiao et al. Preparation and performance exploration of 2,5-furandicarboxylic acid-based copolyester bioplastics: Controlling thermal properties, tensile properties, and surface hydrophilicity through composition [J]. | JOURNAL OF APPLIED POLYMER SCIENCE , 2024 , 141 (33) . |
| MLA | Xu, Jia et al. "Preparation and performance exploration of 2,5-furandicarboxylic acid-based copolyester bioplastics: Controlling thermal properties, tensile properties, and surface hydrophilicity through composition" . | JOURNAL OF APPLIED POLYMER SCIENCE 141 . 33 (2024) . |
| APA | Xu, Jia , Zou, Haitao , Jin, Yanqiao , Zheng, Qixi , Lei, Fanghui , Wu, Yuxin . Preparation and performance exploration of 2,5-furandicarboxylic acid-based copolyester bioplastics: Controlling thermal properties, tensile properties, and surface hydrophilicity through composition . | JOURNAL OF APPLIED POLYMER SCIENCE , 2024 , 141 (33) . |
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Traditional solid-state luminescent materials (e.g., phosphors and microcrystalline glasses) have attracted extensive attention due to their high energy efficiency and long lifespan. However, their application scope is limited by complex compositions and manufacturing processes, as well as single-function. In this study, solid-state reaction was utilized to prepare transparent-ferroelectric (K0.5Na0.5)NbO3 (KNN) ceramics by simply codoping with Dy3+ and Sr2+, providing possibilities for large-scale production. Ceramics exhibit high optical transmittance, high-quality white-light emission and relaxor ferroelectric feature. Under irradiation of UV light, photochromic behavior occurring in the ceramics, resulting in modulating the optical performances, especially quality of emitted white light. Multifunctionality can expand latent applications of KNN-based ceramics from white light-emitting diodes to modulated optoelectronic devices.
Keyword ：
KNN KNN photochromism photochromism photoluminescence photoluminescence transparent ceramic transparent ceramic white-light emission white-light emission
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| GB/T 7714 | Huang, Haoqing , Zhang, Shuo , Yu, Fangyuan et al. Dy/Sr-codoped (K0.5Na0.5)NbO3 multifunctional transparent-ferroelectric ceramics with adjustable white-light emission [J]. | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2023 , 107 (2) : 1137-1147 . |
| MLA | Huang, Haoqing et al. "Dy/Sr-codoped (K0.5Na0.5)NbO3 multifunctional transparent-ferroelectric ceramics with adjustable white-light emission" . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY 107 . 2 (2023) : 1137-1147 . |
| APA | Huang, Haoqing , Zhang, Shuo , Yu, Fangyuan , Lin, Jinfeng , Wu, Xiao , Zhao, Chunlin et al. Dy/Sr-codoped (K0.5Na0.5)NbO3 multifunctional transparent-ferroelectric ceramics with adjustable white-light emission . | JOURNAL OF THE AMERICAN CERAMIC SOCIETY , 2023 , 107 (2) , 1137-1147 . |
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Glasses-free three-dimensional (3D) displays are being regarded as the key to the future of display that will redefine the display industry. Inspired by the curved screen, liquid crystal micro-lens arrays (LC MLAs) on flexible PET substrate with a radius of curvature of 5 cm was achieved. For demonstration, an integral imaging-based 2D/3D convertible display system is proposed by using the flexible LC MLAs (FLC MLAs) to switch its operation mode between 2D and 3D modes. When the FLC MLAs with an applied voltage are in the system, the prototype renders a matched 3D image and works in 3D mode. When the FLC MLAs do not have an applied voltage, the FLC MLAs are equivalent to glass, and the display system works in 2D mode. In addition, we also demonstrated that the FLC MLAs have a wider viewing angle than the flat integral imaging 3D display system. The depth of field ranges from 6.78 to 210.12 mm under low operating voltages of 3.4 to 3.1 Vrms, respectively. With its low voltage, thin structure, and adjustable focal length form factors, the developed display system can be integrated with off-the-shelf purchased flat panels, making it a promising option for portable electronics.
Keyword ：
2D 2D 3D convertible 3D convertible curved integral imaging curved integral imaging Flexible liquid crystal micro-lens array Flexible liquid crystal micro-lens array tunable focal length tunable focal length
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| GB/T 7714 | Wang, Wen-Wen , Peng, Yu-Yan , Weng, Xu-Yang et al. Flexible liquid crystal micro-lens arrays for curved integral imaging 2D/3D convertible display [J]. | LIQUID CRYSTALS , 2023 , 50 (11-12) : 1666-1678 . |
| MLA | Wang, Wen-Wen et al. "Flexible liquid crystal micro-lens arrays for curved integral imaging 2D/3D convertible display" . | LIQUID CRYSTALS 50 . 11-12 (2023) : 1666-1678 . |
| APA | Wang, Wen-Wen , Peng, Yu-Yan , Weng, Xu-Yang , Jin, Yan-Qiao , Zhou, Xiong-Tu , Yan, Qun et al. Flexible liquid crystal micro-lens arrays for curved integral imaging 2D/3D convertible display . | LIQUID CRYSTALS , 2023 , 50 (11-12) , 1666-1678 . |
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A nitrogen-doped carbon quantum dots (N-CQDs)-based "on-off" fluorescent nanosensor was profitably synthe-sized through one-pot hydrothermal treatment of citric acid and o-phenylenediamine for the determination of Fe3+ and imaging towards cancerous cells in vitro. The synthesized N-CQDs exhibited excellent photo-luminescence and favorable biocompatibility. The excitation-dependent fluorescence emission spectra were observed and the maximum emission wavelength was 483 nm at the excitation wavelength of 420 nm. The fluorescent N-CQDs had a selective and sensitive response to Fe3+ with a limit of detection of 0.177 mu M and an allowable detection range of 0-110 mu M. The sensor was applied for the determination of Fe3+ ions in tap water with satisfactory results. Moreover, the N-CQDs provide a practical and promising method for cellular imaging due to their excellent fluorescence potency and negligible cytotoxicity.
Keyword ：
Carbon quantum dots Carbon quantum dots Cell imaging Cell imaging Fe3+ions detection Fe3+ions detection Fluorescence probe Fluorescence probe
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| GB/T 7714 | Lai, Chunmei , Lin, Simin , Xiong, Lei et al. High quantum yield nitrogen-doped carbon quantum dots: Green synthesis and application as "on-off" fluorescent sensors for specific Fe3+ions detection and cell imaging [J]. | DIAMOND AND RELATED MATERIALS , 2023 , 133 . |
| MLA | Lai, Chunmei et al. "High quantum yield nitrogen-doped carbon quantum dots: Green synthesis and application as "on-off" fluorescent sensors for specific Fe3+ions detection and cell imaging" . | DIAMOND AND RELATED MATERIALS 133 (2023) . |
| APA | Lai, Chunmei , Lin, Simin , Xiong, Lei , Wu, Yuxin , Liu, Chao , Jin, Yanqiao . High quantum yield nitrogen-doped carbon quantum dots: Green synthesis and application as "on-off" fluorescent sensors for specific Fe3+ions detection and cell imaging . | DIAMOND AND RELATED MATERIALS , 2023 , 133 . |
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Synthesis of lignin-based carbon dots (LCDs) with high quantum yield (QY), stable fluorescence properties and biocompatibility has been a challenge. Here, we propose an improved two-step strategy for producing highquality LCDs from enzymatic hydrolysis lignin (EHL). The p-aminobenzenesulfonic acid used in the strategy not only provides nitrogen and sulfur elements, but also tailors the disordered three-dimensional structure of EHL. The successful co-doping of N and S elements favors the reduction of the optical energy bandgap (Eg), resulting in a high QY of 45.05% for LCDs. The LCDs exhibited superior selectivity and sensitivity for Fe3+ with a limit of detection (LOD) of 0.15 & mu;M when Fe3+ concentration was 50-500 & mu;M. In addition, LCDs demonstrated significant fluorescence in HepG2 cells and HepG2 cells loaded with LCDs at a concentration of 80 & mu;g/mL showed good viability, suggesting that they are suitable for in vivo applications. The luminescent centers of LCDs change during pH regulation and thus show a special visual response to pH changes, making them have great potential for detecting metabolism in living cells. This work provides a novel and low-cost method for fabricating sustainable fluorescent probes for chemical sensing and bioimaging.
Keyword ：
Bioimaging Bioimaging Carbon dots Carbon dots Enzymatic hydrolysis lignin Enzymatic hydrolysis lignin Fe 3+detection Fe 3+detection
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| GB/T 7714 | Lin, Simin , Lai, Chunmei , Huang, Zejie et al. Sustainable synthesis of lignin-derived carbon dots with visible pH response for Fe3+detection and bioimaging [J]. | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2023 , 302 . |
| MLA | Lin, Simin et al. "Sustainable synthesis of lignin-derived carbon dots with visible pH response for Fe3+detection and bioimaging" . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 302 (2023) . |
| APA | Lin, Simin , Lai, Chunmei , Huang, Zejie , Liu, Wei , Xiong, Lei , Wu, Yuxin et al. Sustainable synthesis of lignin-derived carbon dots with visible pH response for Fe3+detection and bioimaging . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2023 , 302 . |
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Polylactic acid (PLA) is recognized as a promising alternative to traditional petroleum-based plastics due to its excellent biodegradability and well-balanced mechanical properties. Nevertheless, the disadvantages of PLA such as flammability in fire, susceptibility to UV light attack, and slow natural degradation rate limit its application and recovery in high-security areas. In this work, a spherical chitosan-based additive DMPC-Al with mirrorsymmetric internal structure was assembled by layer-by-layer electrostatic reactions, resulting in PLA characterized excellent comprehensive performances. When 7 wt% DMPC-Al was added into PLA, the LOI value of the composite PLA/7DMPC-Al was increased to 29.6%, and UL-94 reached V-0 grade without any molten droplets. The peak heat release rate and total heat release rate were reduced by 13.5% and 16.2%, respectively, and the carbon layer was highly self-expanding. In addition, the UPF of PLA/7DMPC-Al was increased to 34.45 from 0.45 of pure PLA, blocking most of the UV light attacks and extending the service life of PLA. Surprisingly, DMPC-Al actually improved the impact toughness of PLA by 38.5% and facilitated PLA to work continuously when drawing large curved shapes by 3D printing. More importantly, the introduction of DMPC-Al changed the sensitivity of PLA to water and provided sufficient energy for microbial growth, thus accelerating the degradation rate of PLA in the soil under abandoned buildings. This work provides a practical and feasible strategy to achieve multifunctionality of degradable plastics.
Keyword ：
Chitosan Chitosan Intumescent flame retardant Intumescent flame retardant Poly (lactic acid) Poly (lactic acid) Rapid degradation in soil Rapid degradation in soil Ultraviolet resistance Ultraviolet resistance
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| GB/T 7714 | Huang, Zejie , Hu, Libo , Hong, Jiahui et al. Mirror assembly of spherical chitosan-based additives: Towards a circular revolution of PLA from high-value applications to soil degradation [J]. | CHEMICAL ENGINEERING JOURNAL , 2023 , 479 . |
| MLA | Huang, Zejie et al. "Mirror assembly of spherical chitosan-based additives: Towards a circular revolution of PLA from high-value applications to soil degradation" . | CHEMICAL ENGINEERING JOURNAL 479 (2023) . |
| APA | Huang, Zejie , Hu, Libo , Hong, Jiahui , Jin, Yanqiao , Xiong, Lei , Shi, Yongqian . Mirror assembly of spherical chitosan-based additives: Towards a circular revolution of PLA from high-value applications to soil degradation . | CHEMICAL ENGINEERING JOURNAL , 2023 , 479 . |
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