FOOD HYDROCOLLOIDS
·
2026
·
IF 13.8
Qingqing Li,Sitong Zhang,Zhiyi Wu,Guangjun Huang,Jianlong Wang
Photodynamic inactivation holds promise for food packaging, yet its application is hindered by poor efficiency against Gram-negative bacteria. This study developed an active composite film based on food-grade, positively-charged chitosan (CS) and a hierarchically structured composite (HPZA). Under visible light illumination, HPZA generated substantial reactive oxygen species, causing bacterial membrane disruption and subsequent ion leakage. As a result, HPZA at 60 μg/mL achieved a 5 log 10 reduction in Escherichia coli , and at 80 μg/mL it reduced Staphylococcus aureus from 6 log 10 to 1 log 10 CFU/mL. Furthermore, it exhibited potent light-driven antifungal activity against Botrytis cinerea . With HPZA as a functional active filler, the CS-based films exhibited enhanced physicochemical performance, including a 53.48% increase in elongation at break, a 24.27% increase in water contact angle, and increased visible light absorbance. In a practical application, the CS-HPZA 2.00% film effectively extended the shelf life of cherry tomatoes from 2 to 10 days, while maintaining fruit firmness and total soluble sugar content, with minimal difference from the fresh group. These findings highlight CS-HPZA as a promising light-driven antimicrobial packaging film for active food packaging applications.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
·
2026
·
IF 5.1
Jun Liu,Qiao Zhou,Xueming Shi,Shuying Hu,Fang Zhou,Shuangshuang Ren,Changao Xue,Leiying Miao
A soft-chitosan interface was developed for composite flexible electrodes. • The interface bridged SEBS and PEDOT:PSS through multiple interactions. • The fabricated electrode remained stable under extreme and cyclic tensile strain. Flexible conductive electrodes used for wearable electrophysiological sensing are frequently limited by interfacial instability arising from insufficient intercomponent interaction and elastic mismatch under repeated mechanical deformation. In this study, a soft-chitosan interfacial system was introduced into styrene-ethylene-butylene-styrene (SEBS)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composite electrodes to enhance structural integrity and electrical stability during tensile loading. Glycerol and Tween 80 were employed to maintain chitosan chains in a soft and deformable state, allowing the interfacial layer to penetrate the porous SEBS substrate through capillary action and form rivet-like anchoring structures. Simultaneously, hydrogen bonding and electrostatic attraction between the interfacial layer and the PEDOT conductive layer established effective interfacial coupling. Benefiting from this cooperative interface design, the resulting composite electrode exhibited stable conductivity retention under large tensile strain and cyclic stretching conditions. In addition, the electrode enabled reliable electromyographic (EMG) signal monitoring of the forearm and masseter muscles with stable waveform acquisition during motion. These results demonstrate the potential of the developed electrode for wearable electrophysiological sensing applications. This work provides an interfacial engineering strategy for stretchable conductive electrodes requiring stable electrical performance under mechanical deformation. Download: Download high-res image (296KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Yueru Fang,Lan Zhang,Kuok Ho Daniel Tang,Ronghua Li
3D macroporous chitosan-bentonite foam composite was fabricated via ice-templating. • Bisphenol capture is governed by hydrogen bonding and polar interactions. • BPS preferentially engages –NH sites via its –SO 2 – group revealed by FTIR. • Efficient bisphenol removal was achieved across diverse real water matrices. • Preliminary capture of heavy metals and microplastics was also demonstrated. Bisphenols (BPA, BPF and BPS) are emerging contaminants with well-documented endocrine-disrupting effects, and their environmental occurrence often coincides with heavy metals and microplastics. In this study, a three-dimensional chitosan/bentonite composite foam (CBF) was fabricated via directional ice-templating and systematically evaluated as a recoverable adsorbent for bisphenols. The CBF exhibited stable adsorption performance, with kinetics following the pseudo-second-order model and isotherms well described by the Langmuir model, achieving moderate maximum capacities of 13.69 to 16.27 mg/g under a monolithic, manually recoverable design. High removal efficiencies were maintained over a wide pH range (2.0–10.0) and under varying ionic strength conditions. Spectroscopic and thermodynamic analyses indicate that bisphenol adsorption is governed by hydrogen bonding, polar interactions, and pore confinement effects, with selectivity among analogues modulated by their analogue-specific interaction pathways with the functional groups of CBF. The positive enthalpy change and increasingly negative Gibbs free energy further support a spontaneous and endothermic adsorption process. Preliminary tests further indicated that the macroporous framework was capable of capturing heavy metal ions (Pb(II), Cd(II)) and physically entrapping representative microplastics (PLA, PS, PE), suggesting potential applicability beyond bisphenols. Within its intended design scope of prioritizing operational simplicity over maximum capacity, CBF offers a monolithic platform with facile manual separation and minimal secondary turbidity. This combination of low-cost raw materials, monolithic recoverability, and multi-class pollutant applicability distinguishes CBF from conventional powdered adsorbents and is relevant to the practical treatment of bisphenol contaminated water under complex matrix conditions. Download: Download high-res image (83KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Bioengineering-Basel
·
2026
·Vol. 13
·期 7
·792
·
IF 4.4
Xiaohui Zhang,Gaopeng Wang,Shuwen Ding,Chenyang Luo,Jing Wang
Diabetic oral mucosal wounds exhibit impaired healing and require biomaterials with strong wet adhesion, favorable biocompatibility, and adequate mechanical stability. In this study, an in situ photocurable adhesive hydrogel (ATDS) based on sulfonated chitosan was developed for diabetic oral mucosal wound repair. ATDS exhibited a tensile strength of 50 kPa, an elongation at break of 320%, and an adhesive strength of 0.605 MPa, while also displaying a porous microstructure without obvious cytotoxicity. Compared with hyaluronic acid (HA) gel, which was completely lost by day 3, ATDS provided more durable wound coverage in the oral environment. In a diabetic rat model of oral mucosal defect, ATDS significantly accelerated wound closure, with wounds nearly completely healed by day 6, promoted re-epithelialization as early as day 3, and increased epidermis thickness by approximately 50% compared with the control group. In addition, ATDS enhanced angiogenesis and reduced the expression of the inflammatory cytokines TNF-α and IL-1β. Collectively, these findings demonstrate that ATDS effectively promotes diabetic oral mucosal wound healing through its barrier-protective, pro-angiogenic, and anti-inflammatory effects, highlighting its potential as a promising biomaterial for oral tissue engineering and regenerative applications.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROANALYSIS
·
2026
·Vol. 38
·期 7
·e70190
·
IF 2.6
Hao Liang,Xuening Jin,Hebing Pei,Zunli Mo
The enantioselective recognition of biomolecules such as amino acids has significant value in medicine, life sciences, agriculture, and other fields. In this study, a novel electrochemical chiral sensor, CS@Cu-β-CD/GCE, was successfully prepared by self-assembling Cu 2+ modified β-cyclodextrin (β-CD) with chitosan (CS) and coating it onto a glassy carbon electrode (GCE). This method effectively addresses the agglomeration issues associated with CS while significantly enhancing the conductive properties of the material and increasing the number of chiral recognition sites. Experimental testing and structural analysis revealed that differentiated hydrogen bonding provides the driving force for molecular binding, while the confinement of the Cu-β-CD cavity and steric hindrance enable structure selection. At optimized testing conditions (30 s incubation, 25°C, pH = 6.0, 5.0 mM), it exhibited the peak current ratio (I D /I L ) of up to 2.25 for phenylalanine (Phe) isomers, outperforming most previously reported electrochemical sensors. Meanwhile, the CS@Cu-β-CD/GCE exhibits excellent stability (98.6% signal retention after 16 days of storage at 5°C), high enantiomeric selectivity for Phe, and good resistance to interference, can be developed for distinguishing racemic phenylalanine. This strategy provides a simple and efficient approach for electrochemical chiral identification of Phe enantiomers and holds wide-ranging application prospects in chiral sensing and drug analysis.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Xiang-Yu Huang,Yan-Qin Guo,Li Ding,Xu-Feng Wang,Li Wen,Zhou Xu,Yun-Hui Cheng,Mao-Long Chen
This study developed a sustainable, edible composite film based on carboxymethyl chitosan (CMCS) and gelatin (GL), incorporating antimicrobial peptides from fava beans (FBAP) for active food packaging. The antimicrobial composite film (U-CMCS/GL-FBAP) was prepared via ultrasonication-assisted cross-linking. Structural analysis confirmed enhanced hydrogen-bonding interactions among the components. The film exhibited a water contact angle of 108.3°, indicating modulated surface wettability. The incorporation of FBAP markedly improved the mechanical properties, increasing the tensile strength and flexibility by approximately 2 times and 1.12 times, respectively. The film also demonstrated a low water vapor permeability (WVP) of 3.55× 10 −11 g·m/(m 2 ·s·Pa) and significant antioxidant activity, with a DPPH and ABTS radical scavenging rates of 40.89% and 79.44%. Furthermore, the film demonstrated strong UV-blocking properties and sustained antibacterial activity, achieving a cumulative FBAP release of 65.82% over 96 h. In application trials on winter jujubes and cherry tomatoes, the coating effectively extended the shelf life by 11 days, respectively, primarily by suppressing microbial growth and reducing quality deterioration. Overall, the U-CMCS/GL-FBAP film combines balanced surface properties, enhanced mechanical and barrier performance, antioxidant capacity, and controlled antimicrobial release, offering a promising and sustainable strategy for the high-value utilization of legume by-products in food preservation.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Xiaohan Zhao,Yubin Huang,Zhenhong Huang,Hongzhi Liu
The hazards of aqueous Cr (VI) are severe, necessitating adsorbents with high capacity, applicability, and recyclability. In this study, a novel water-soluble cationic quaternary ammonium silsesquioxane (SQ-N) was synthesized and subsequently reacted with chitosan (CS), polyethylene glycol diacrylate (PEGDA), and pentaerythritol tetrakis (3-mercaptopropionate) (PETMP) to fabricate a flexible chitosan hybrid cryogel (PPSC-x (x = 1, 2, 3)) through UV cross-linking followed by freeze-drying. The resulting cryogel was comprehensively characterized using FTIR, XRD, TGA, SEM, EDS, and XPS analyses. The PPSC-x (x = 1, 2, 3) cryogel possessed abundant active sites and superior mechanical properties, rendering them suitable for the efficient removal of Cr (VI) from wastewater. The adsorption process was spontaneous and endothermic, achieving a maximum equilibrium adsorption capacity of 274 mg g −1 at 328 K. The adsorption of Cr (VI) followed a pseudo-second-order kinetic model and conformed to the Langmuir isotherm. PPSC-3 maintained >90% removal efficiency over five cycles and demonstrated notable antibacterial activity against Escherichia coli and Staphylococcus aureus . A prototype device further validated its practical potential for wastewater treatment.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Polymers
·
2026
·Vol. 18
·期 8
·908
·
IF 5.8
Xinyu Zhang,Chu Gong,Yujie Liu,Jun Wang,Zhizhou Yang,Jun-Li Yang
Biopolymer-based packaging films possess outstanding performances and are being developed as the alternatives to traditional petroleum-based plastic packaging films with many non-ignorable shortcomings. In this study, chitosan, succinylated pullulan (SP), and berberine (BBR) were combined to fabricate novel biopolymer-based composite films (CSSPB) via the layer-by-layer assembly method. The effects of the incorporation of BBR on the physicochemical properties of the film were investigated. It was found that after BBR was added, the tensile strength (TS), elongation at break (EAB), hydrophobicity, and antioxidant capacities of the film were enhanced. The chemical bonding, crystalline properties, elemental composition, and thermal stability of the films were also characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA), respectively. The in vitro antifungal tests revealed the antifungal activities of the films with a relatively high BBR content againstColletotrichum gloeosporioides(CG). In the preservation experiments, the CSSPB films exhibited preservation effects on fresh-cut apples, which manifested as delaying browning, weight loss, an increase in the soluble solids content, and a decrease in hardness. The new CSSPB composite films were opined to hold application potential in the field of food packaging.
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Fengyuan Xie,Yun Zhang,Menghan Li,Peng Jin,Yonghua Zheng,Zhengguo Wu
During the preservation process, it is crucial to minimize the invasion of microorganisms, regulate the respiratory and metabolic activities of fruits, and how to coordinate the two to maintain the quality of fruits. Herein, modified hollow mesoporous silica nanospheres ( NH 2 -HMSN) was used to graft cinnamaldehyde (CA) and immobilize silver nanoparticles (AgNPs), synthesizing NH 2 -HMSN@CA/Ag preservative. Subsequently, the NH 2 -HMSN@CA/Ag was combined with chitosan and polyethylene oxide to obtain nanofiber film (CPNS@CA/Ag) by electrospinning, and utilized for the cherry preservation. The intricate physical entanglement and robust hydrogen bonding interactions between chitosan and polyethylene oxide, coupled with synergistic interfacial engagement with NH 2 -HMSN@CA/Ag, collectively confer the CPNS@CA/Ag nanofibers with three-dimensional network structure. The unique nanofiber structure endows CPNS@CA/Ag film with controllable oxygen (4.11 g/m 2 ·h·kpa) and moisture (357.9 g·mm/m 2 ·d·kpa) permeability and a long-lasting release effect (88.81% of CA and 7.76% of AgNPs released in 7 days). Crucially, the CPNS@CA/Ag film demonstrates potent antioxidant activity, hydrophobic performance (water contact angle is 105.6°), antimicrobial activity (99.99% inhibition rate), and favorable safety profile (silver residual amount < 0.03 mg/kg). These performances confer strong freshness-preserving efficacy to the CPNS@CA/Ag nanofiber film packaging for cherries, thereby extending the storage duration at 25 °C to 12 days. This study presents the development of a modified silica-reinforced chitosan-based electrospun film, which enables the controlled release of both cinnamaldehyde and AgNPs, exhibiting enhanced biosafety and preservation efficacy for postharvest fruit application.
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2026
·Vol. 61
·期 1
·
IF 3.3
Jin Danping,Amna Dua,Wang Qingcheng,Yao Jingzi,Zhang Xinxin,Li Zhi,Lang Hongjie,Chen Yunyun,Zhong Kang,Li Sijuan,Shen Qing
To develop a green and functional hydrogel for potential application as a wound dressing, in this study, composite hydrogels were prepared using corn starch and chitosan as the matrix, with citric acid (CA) at a series of concentrations (5%–20%, wt/wt) serving as a green crosslinking agent. Resveratrol (Res) was loaded into these hydrogels, and the influences of CA concentration on the swelling and gel characteristics of the composite hydrogels were systematically investigated. The results demonstrated that the hydrogel crosslinked with 10% CA (designated as SCA10%) exhibited the optimal comprehensive performance, achieving an equilibrium swelling ratio of 228% and appropriate gel strength. Structural analysis confirmed the formation of crosslinking between CA and starch/chitosan, as well as the successful loading of Res into the hydrogel matrix. Notably, microscopic images revealed that the incorporation of Res resulted in a more well-developed and uniform porous structure in SCA10%-Res. Additionally, this composite hydrogel showed robust antibacterial activity. Collectively, the prepared starch-chitosan-CA-Res hydrogel holds significant potential for applications in wound repair and localised drug delivery. It also provides a valuable reference for the green fabrication of natural polymer-based functional materials.
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Ming Wei,Yuqi Zhu,Yijun Zong,Xidie Liu,Yuyan Jiang,Liangxian Liu,Shaoliang Xiao,Jian Li
Abstract Traditional biomass-based adhesives often suffer from low strength, poor boiling-water resistance, and limited functionality. In this study, inspired by the catechol-containing mussel byssal proteins, we developed a chitosan-based adhesive using chitosan (CS), tannic acid (TA), and Fe3+. Hydrogen bonding and metal coordination among CS, TA, and Fe3+ enhance the cross-linked network, thereby improving the adhesion performance, with a boiling-water shear strength of 1.40 MPa. Notably, the Limiting Oxygen Index (LOI) of poplar veneer treated with the CS-TA-Fe3+ adhesive was 29.70%, meeting the standards for flame-retardant materials. These results demonstrate the simultaneous enhancement of adhesion and flame retardancy, highlighting the potential of this system as a sustainable, multifunctional adhesive for construction and automotive applications.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yalan Wu,Chenjing Li,Ting Yu,Fujie Yan
Cinnamaldehyde-loaded yeast glucan particles were incorporated into chitosan films . • CY improved the thermal stability, barrier, and mechanical properties of the films. • CS/CY films showed enhanced antibacterial, antioxidant, and UV-blocking activities. • CY enabled sustained release and improved the stability of cinnamaldehyde. • CS/CY2 delayed fruit decay and extended blueberry and strawberry shelf life. Developing multifunctional natural edible films is an effective strategy to reduce postharvest fruit decay and quality deterioration. In this work, cinnamaldehyde was loaded into hollow porous yeast glucan particles (YGPs) derived from Kluyveromyces marxianus to generate CY microcarriers, which were subsequently incorporated into a chitosan matrix to construct CS/CY composite films. The incorporation of CY improved the thermal stability, UV-shielding ability, water vapor and oxygen barrier properties, and mechanical strength of the films, which may be related to intermolecular interactions, including hydrogen bonding, between chitosan and β-glucan-rich YGPs. The CS/CY2 film achieved a water vapor permeability of 4.84 × 10 −11 g s −1 m −1 Pa −1 , an oxygen permeability of 0.84 × 10 −7 g s −1 m −1 , and a tensile strength of 36.91 MPa. Importantly, the hollow porous structure of YGPs enabled sustained cinnamaldehyde release, thereby providing the films with long-lasting antimicrobial activity against Escherichia coli , Staphylococcus aureus , and Botrytis cinerea , together with enhanced antioxidant capacity. In blueberry and strawberry preservation, the CS/CY2 film effectively reduced fungal decay, limited weight loss, delayed firmness reduction, and maintained fruit quality during storage, while exhibiting near-complete biodegradation in natural soil within 20 days. This polysaccharide-based film system incorporating cinnamaldehyde-loaded YGPs provides a promising biodegradable packaging strategy for postharvest fruit preservation. Download: Download high-res image (177KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）