IF 3.2 4区生物学

Biopolymers Pub Date : 2025-06-28 DOI: 10.1002/bip.70038

Ene Awodi, Turup Pandurangan Mohan, Kanny Krishnan

{"title":"Preparation and Characterization of Cellulose Filled With Hydroxyapatite Biocomposite Film","authors":"Ene Awodi, Turup Pandurangan Mohan, Kanny Krishnan","doi":"10.1002/bip.70038","DOIUrl":"https://doi.org/10.1002/bip.70038","url":null,"abstract":"<p>The packaging industry remains largely dominated by non-degradable synthetic materials, raising environmental concerns and prompting increased interest in sustainable alternatives. As a result, biopolymers such as starch and cellulose have gained considerable attention. The present study investigates the thermal, mechanical, and hydrophilic properties of regenerated cellulose film as a potential eco-friendly packaging material. The biopolymers utilized in this study were derived from secondary biowaste sources. The presence of transmittance bands corresponding to calcium and phosphate groups in the FTIR spectra, as well as the results of elemental composition analysis (EDX), confirmed the elemental makeup of the particles. FTIR analysis further revealed significant interactive bonding between the hydroxyl groups in the cellulose matrix and the calcium components of the FSHAp fillers. These interactions resulted in shifts in the IR transmittance bands in the biopolymer composite films. The incorporation of FSHAp fillers into the cellulose matrix enhanced the thermal stability of the cellulose films, with an observed improvement of 24%. At a filler concentration of 3 wt%, the char residue was 74.89% higher than that of the unfilled cellulose film. Additionally, the cellulose film containing 2 wt% FSHAp exhibited a tensile strength of 23 MPa, representing a 30% increase compared to the unfilled sample. This study introduces a novel biopolymer composite film as a promising sustainable and eco-friendly alternative to conventional plastic-based packaging materials. Furthermore, it supports the principles of the circular economy by offering a viable solution for managing abundantly available biomass waste.</p>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bip.70038","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144503239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elucidating Mechanisms of Gelation, Fiber Assembly, and Stability of Injectable Decellularized Extracellular Matrix Biomaterials 可注射脱细胞细胞外基质生物材料凝胶化、纤维组装和稳定性机制的研究

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-06-25 DOI: 10.1002/bip.70037

Alexander Chen, Michael B. Nguyen, Julian Cheng, Benjamin D. Bridgelal, Kate E. Reimold, Joshua Tesoro, Estefania Encisco-Pelayo, Karen L. Christman

{"title":"Elucidating Mechanisms of Gelation, Fiber Assembly, and Stability of Injectable Decellularized Extracellular Matrix Biomaterials","authors":"Alexander Chen, Michael B. Nguyen, Julian Cheng, Benjamin D. Bridgelal, Kate E. Reimold, Joshua Tesoro, Estefania Encisco-Pelayo, Karen L. Christman","doi":"10.1002/bip.70037","DOIUrl":"https://doi.org/10.1002/bip.70037","url":null,"abstract":"<p>Decellularized extracellular matrix (dECM)-based biomaterials have been widely used for their applications in tissue engineering. In particular, pepsin digestion of dECM can be used to generate injectable forms, including ECM hydrogels as well as an intravascularly infusible ECM (iECM). However, fundamental materials characterization of these materials has been limited, and thus little is known about what exactly drives gelation of ECM hydrogels or the conditions for fibril assembly and growth. With this study, we sought to answer a fundamental question on how these materials assemble or gel, as well as a translational question on what storage conditions are suitable for these materials. Here, we used second-harmonic generation and transmission electron microscopy to investigate the mechanism of gelation for ECM hydrogels and the nanofibril assembly of the iECM. Overall, these microscopies revealed the origin and morphology of self-assembly and that type I collagen lateral and longitudinal growth drives ECM hydrogel formation. On the contrary, the iECM preserved the same mechanism for nanofiber assembly without gelation. In terms of translation, ensuring the stability after rehydration is critical for therapeutic injection timing since changes in the material could impact both safety and efficacy. Via microscopy in conjunction with bulk material characterization, we found that dECM formulations are best kept at 4°C for a maximum of 24 h after rehydration in order to maintain their original properties. Overall, this work provides evidence for the type I collagen directed self-assembly within heterogeneous, injectable, decellularized ECM biomaterials and also determines clinically relevant material storage conditions.</p>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bip.70037","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eco-Friendly Biopolymers: Eco-Friendly Biopolymers: Converting Waste Cooking Oil Into Simultaneous Production of Two Valuable Polyhydroxyalkanoates and Bacterial Alginate Through Microbial Conversion 生态友好型生物聚合物：生态友好型生物聚合物：通过微生物转化，将废食用油转化为同时生产两种有价值的聚羟基烷酸酯和海藻酸盐

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-06-11 DOI: 10.1002/bip.70035

Wankuson Chanasit, Kamontam Umsakul, Kumar Sudesh

{"title":"Eco-Friendly Biopolymers: Eco-Friendly Biopolymers: Converting Waste Cooking Oil Into Simultaneous Production of Two Valuable Polyhydroxyalkanoates and Bacterial Alginate Through Microbial Conversion","authors":"Wankuson Chanasit, Kamontam Umsakul, Kumar Sudesh","doi":"10.1002/bip.70035","DOIUrl":"https://doi.org/10.1002/bip.70035","url":null,"abstract":"<div>\u0000 \u0000 <p>An obstacle to the commercial application of polyhydroxyalkanoates (PHAs) and a co-product exopolysaccharide, alginate, is their high production cost. In this study, waste cooking oil (WCO) was used as an inexpensive carbon source for biopolymer production by <i>Pseudomonas mendocina</i> PSU. The highest biomass of 4.60 ± 0.06 g/L and PHA concentration of 2.58 ± 0.03 g/L (accounting for about 54% DCW) were achieved with a productivity of 0.072 g/L/h under optimal conditions determined by response surface methodology. Additionally, a maximum alginate yield of 8.85 ± 0.24 g/L was obtained as the co-product. The WCO, which primarily contained oleic acid (C18:1), palmitic acid (C16:0), and linoleic acid (C18:2) influenced the monomer composition of the produced PHA. The results demonstrated the presence of both SCL-PHA monomers such as 3HB (3-hydroxybutyrate) and MCL-PHA monomers including 3HHx (3-hydroxyhexanoate), 3HO (3-hydroxyoctanoate), 3HD (3-hydroxydecanoate), and 3HDD (3-hydroxydodecanoate) in varying molar fractions. Moreover, an average molecular weight of approximately 10<sup>4</sup> Da and a polydispersity index of 1.58 were determined in the produced PHA, consisting predominantly of 3HB (86 mol%) when the cells were grown in 2.0% (v/v) WCO. Furthermore, the melting temperature (<i>T</i><sub><i>m</i></sub>) and glass transition temperature (<i>T</i><sub><i>g</i></sub>) were around 157°C and −20°C, respectively. Additionally, the produced alginate from <i>P. mendocina</i> PSU exhibited functional acetyl groups, which are a distinguishing feature of bacterial alginate, and showed an apparent viscosity comparable to commercial alginate from brown seaweed. These biopolymer characteristics demonstrate strong potential for biomaterial applications, adding value to WCO and reducing overall production costs.</p>\u0000 </div>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Investigation of Albumin Nanoparticles Loaded With Anti-Tuberculosis Drug Isoniazid 负载抗结核药物异烟肼的白蛋白纳米颗粒的合成与研究

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-06-11 DOI: 10.1002/bip.70036

Aldana Galiyeva, Yerkeblan Tazhbayev, Tolkyn Zhumagaliyeva, Bakhytgul Karimova, Nurlan Tabriz, Vitaliy V. Khutoryanskiy

{"title":"Synthesis and Investigation of Albumin Nanoparticles Loaded With Anti-Tuberculosis Drug Isoniazid","authors":"Aldana Galiyeva, Yerkeblan Tazhbayev, Tolkyn Zhumagaliyeva, Bakhytgul Karimova, Nurlan Tabriz, Vitaliy V. Khutoryanskiy","doi":"10.1002/bip.70036","DOIUrl":"https://doi.org/10.1002/bip.70036","url":null,"abstract":"<div>\u0000 \u0000 <p>The development of novel treatment strategies for tuberculosis (TB), including its multidrug-resistant forms, remains a global health priority. Conventional first- and second-line anti-TB drugs are often incorporated into polymer-based delivery systems to improve efficacy and reduce side effects. Among biodegradable, non-toxic, and biocompatible polymers, human serum albumin (HSA) stands out as a highly promising drug carrier. In this study, isoniazid (INH)-loaded human serum albumin nanoparticles were synthesized via the reaction of HSA macromolecules with cysteine in the presence of urea. Key nanoparticles characteristics—including size, polydispersity, drug loading efficiency, and drug binding capacity—were systematically evaluated and optimized. The effects of various formulation parameters, such as solution pH and concentration of urea, cysteine, albumin, and isoniazid, were investigated. Conformational changes in the protein structure were assessed using spectrofluorometric analysis. Additionally, the physicochemical properties and in vitro drug release profiles of HSA-INH nanoparticles were characterized. The antimicrobial activity of the nanoparticles was tested against the wild-type <i>Mycobacterium tuberculosis</i> H37Rv strain at isoniazid concentrations of 5, 25, and 50 mg/mL. The minimum inhibitory concentration of isoniazid when delivered via HSA nanoparticles was also determined.</p>\u0000 </div>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gallic Acid Loaded Alginate-Gelatin Beads for Potential Bone Tissue Engineering Applications 没食子酸负载海藻酸凝胶珠潜在的骨组织工程应用

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-06-04 DOI: 10.1002/bip.70033

Mehmet Ali Karaca, Ali Reza Kamali, Bita Erin Kamali, Bilge Temiz, Furkan Özben, Duygu Ege, Hale Saybaşılı

{"title":"Gallic Acid Loaded Alginate-Gelatin Beads for Potential Bone Tissue Engineering Applications","authors":"Mehmet Ali Karaca, Ali Reza Kamali, Bita Erin Kamali, Bilge Temiz, Furkan Özben, Duygu Ege, Hale Saybaşılı","doi":"10.1002/bip.70033","DOIUrl":"https://doi.org/10.1002/bip.70033","url":null,"abstract":"<p>In this study, alginate/gelatin (AL/GEL) spherical beads are prepared and encapsulated with 1 wt % of needle-shaped gallic acid (GA) crystals to develop a drug delivery system. The % encapsulation efficiency of GA into AL/GEL beads, its release rate, and the stability of the beads are evaluated, followed by cytocompatibility studies. The interactions between GA, AL, and GEL are examined by using FTIR. Morphological observations reveal that increasing the GEL concentration above 0.4 wt.% possibly hinders the binding of calcium ions with the carboxylate groups of AL, resulting in the formation of beads with larger diameters. In contrast, the bead diameter decreases with the incorporation of GA due to hydrogen bonding. EDX analysis of GA-loaded AL/GEL beads indicated that GA binds to the GEL-rich region. Furthermore, EDX analysis of mineralized beads demonstrated that GA enhanced calcium deposition near the alginate-rich region. In vitro studies demonstrate that AL/GEL beads loaded with ≤ 0.5 (wt.) % GA are cytocompatible and MC3T3-E1 murine pre-osteoblast cells proliferated over a 5-day period. Overall, the prepared beads show potential as a drug delivery system for bone regeneration applications.</p>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bip.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid Quantitative Assessment of Residual Stress States in PLA Components Enabled by the Combination of Photoelasticity and the Hole Drilling Method 光弹性与钻孔法结合对聚乳酸构件残余应力状态的快速定量评估

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-05-31 DOI: 10.1002/bip.70026

Olzhas Tlegenov, Margarita Reit, Jan-Christoph Zarges, Alexander Liehr, Thomas Niendorf, Hans-Peter Heim

{"title":"Rapid Quantitative Assessment of Residual Stress States in PLA Components Enabled by the Combination of Photoelasticity and the Hole Drilling Method","authors":"Olzhas Tlegenov, Margarita Reit, Jan-Christoph Zarges, Alexander Liehr, Thomas Niendorf, Hans-Peter Heim","doi":"10.1002/bip.70026","DOIUrl":"https://doi.org/10.1002/bip.70026","url":null,"abstract":"<p>Poly(lactic acid) (PLA) is one of the most prominent biopolymers and is considered a viable alternative to petroleum-based polymers. While it exhibits comparable properties to conventional polymers like PET, in certain applications, particularly those involving elevated temperatures, PLA has performance limitations. In addition, the properties of PLA are dependent on the processing parameters in injection molding. Non-optimal process parameters can lead to defects or undesirable effects that cannot be detected immediately after injection molding. This includes orientation and residual stresses, which significantly influence the material and failure properties. The present study investigates the influence of injection molding machine settings on the residual stress state in PLA components. Test specimens were produced using two different mold tools: an ejector pin and a full-surface ejector, while varying key machine settings. Residual stress was assessed using a polariscope and the hole drilling method. The polariscope identified distinct isochromatic fringe patterns, particularly near the sprue, indicating regions of elevated residual stress. The hole drilling method confirmed the presence of high residual stress at the specimen edges, extending to a depth of 600 μm, with a peak stress value of 47 MPa. Results revealed that the ejector pin mold induced both tensile and compressive stress states, whereas the full-surface ejector mold predominantly caused high compressive stresses at the edges. These findings highlight the importance of optimizing injection molding parameters to minimize residual stress and improve the mechanical performance of PLA components.</p>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bip.70026","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioresorbable Composite Polymeric Stents: Alleviating Deployment Damage and Maintaining Significant Mechanical Properties 生物可吸收复合聚合物支架：减轻部署损伤和保持显著的机械性能

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-05-31 DOI: 10.1002/bip.70034

Jian Lv, Yi Zhang, Renhua Sun, Xue Hu, Rixin Hua, Yuan Tian, Jie Cheng, Ji Lang, Ziyu Wu, Yazhou Li, Jiaqi Zeng, Min Zhou, Zhonghua Ni, Gutian Zhao

{"title":"Bioresorbable Composite Polymeric Stents: Alleviating Deployment Damage and Maintaining Significant Mechanical Properties","authors":"Jian Lv, Yi Zhang, Renhua Sun, Xue Hu, Rixin Hua, Yuan Tian, Jie Cheng, Ji Lang, Ziyu Wu, Yazhou Li, Jiaqi Zeng, Min Zhou, Zhonghua Ni, Gutian Zhao","doi":"10.1002/bip.70034","DOIUrl":"https://doi.org/10.1002/bip.70034","url":null,"abstract":"<div>\u0000 \u0000 <p>The latest-generation Poly(L-lactic acid) (PLLA) based fully bioresorbable stents (BRS) are facing a grave challenge due to their higher clinical risk of post-implantation. There is consensus that the strut thickness of BRS far exceeds that of metal stents; this is the main reason for the poor clinical outcomes. Therefore, overcoming the gap in mechanical properties between PLLA and metal, and effectively reducing the strut thickness of BRS without sacrificing mechanical properties, is a research priority. In this paper, the vital structural weakness of BRS causing the poor mechanical properties was discovered from the preparation process. We proposed the use of an elastomeric coating to alleviate the damage in weakness during deployment. Experiments and numerical simulations conducted on PLLA stents with and without poly(L-lactide-co-ε-caprolactone) (PLCL) coating have confirmed that they can reduce stress concentration during deployment. The composite stents exhibit higher radial supporting capability after deployment. Significantly, the radial strength of the 100 μm thin-strut stent increased by 31%, up to 1061.8 mmHg. Moreover, in vivo animal experiments conducted on rabbits show encouraging biocompatibility and effectiveness of the composite stents. Our work provided a pure thin-strut PLLA stent with superior mechanical properties and biocompatibility, which can become a reliable platform for future research and clinical applications of BRS.</p>\u0000 </div>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cationic Cyclodextrin Loaded Photosensitizer Ce6 for the Treatment of Periodontitis 阳离子环糊精负载光敏剂Ce6治疗牙周炎

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-05-30 DOI: 10.1002/bip.70030

Zhe Sun, Jie Mou, Yawen Cui, Yifan Xuan, Jinxin Yang, Zongxiang Liu

{"title":"Cationic Cyclodextrin Loaded Photosensitizer Ce6 for the Treatment of Periodontitis","authors":"Zhe Sun, Jie Mou, Yawen Cui, Yifan Xuan, Jinxin Yang, Zongxiang Liu","doi":"10.1002/bip.70030","DOIUrl":"https://doi.org/10.1002/bip.70030","url":null,"abstract":"<div>\u0000 \u0000 <p>Periodontitis is a bacterial infectious disease. Photodynamic therapy (PDT) offers high selectivity, drug-resistance-free treatment, and immune regulation. The second-generation porphyrin photosensitizer Ce6 excels in reactive oxygen species (ROS) production. However, periodontitis pathogens' negative charge limits Ce6's interaction with them. This study prepared a modified cationic cyclodextrin (sPAM) and encapsulated Ce6 in an aqueous medium to create a nano-photodynamic system (Ce6@sPAM), which was characterized. In vitro evaluations assessed Ce6@sPAM's photodynamic performance, safety, antibacterial properties, and effects on immunoregulation. TEM images revealed Ce6@sPAM's irregular spherical shape, with a size of 236 nm by DLS and a Zeta potential of +16.4 mV. Ce6@sPAM exhibits a notably brief light half-life of merely 13 min, facilitating its swift in vivo clearance. SOSG and DCFH-DA fluorescence experiments showed Ce6@sPAM had stronger ROS generation (<i>p</i> < 0.05) and better bacterial penetration (<i>p</i> > 0.05) than Ce6. Co-incubation with Ce6@sPAM reversed bacterial surface potential from negative to positive. Bio-safety tests confirmed its excellent biocompatibility. In antibacterial tests, sPAM showed antibacterial properties, and Ce6@sPAM had a stronger effect than Ce6 under light (<i>p</i> < 0.001). Ce6@sPAM also exhibited high macrophage killing rates (> 90%) without specificity (<i>p</i> > 0.05) and can induce M1 macrophages to M2 polarization. Ce6-loaded modified cyclodextrin nanoparticles hold great promise for synergistic PDT in periodontitis treatment, especially in early stages for optimal immunomodulation.</p>\u0000 </div>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical Interaction Between Starch-Polyvinyl Alcohol Matrix With Barley Microfibers: Structural, Barrier, and Viscoelastic Performance in Extruded Films 淀粉-聚乙烯醇基质与大麦微纤维之间的化学相互作用：挤压膜的结构、屏障和粘弹性性能

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-05-30 DOI: 10.1002/bip.70031

Guadalupe P. Radilla-Serrano, Otilo A. Acevedo-Sandoval, Carlos A. Gomez-Aldapa, Javier Castro-Rosas, Ernesto Hernandez-Hernandez, Pablo Gonzalez-Morones, Beatriz L. España-Sanchez, Francisco Hernandez-Gamez, Israel Sifuentes-Nieves

{"title":"Chemical Interaction Between Starch-Polyvinyl Alcohol Matrix With Barley Microfibers: Structural, Barrier, and Viscoelastic Performance in Extruded Films","authors":"Guadalupe P. Radilla-Serrano, Otilo A. Acevedo-Sandoval, Carlos A. Gomez-Aldapa, Javier Castro-Rosas, Ernesto Hernandez-Hernandez, Pablo Gonzalez-Morones, Beatriz L. España-Sanchez, Francisco Hernandez-Gamez, Israel Sifuentes-Nieves","doi":"10.1002/bip.70031","DOIUrl":"https://doi.org/10.1002/bip.70031","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, the effect of microwave (MW) treatment on obtaining barley microfibers and their effect on the chemical, structural, and viscoelastic properties of films based on starch (S) and polyvinyl alcohol (P) was inspected. SEM, FTIR, and TGA analysis revealed that MW treatment effectively achieves the defibrillation and the destabilization of hydrogen bonds of the hemicellulose and lignin molecules, resulting in the obtention of barley microfibers (BM). XPS analysis allowed identification of the oxidation and crosslinking mechanism of S, P, and S/P films containing BM during the extrusion process. PBM and SPBM films showed an increase in C<span></span>C proportions linked to the crosslinking phenomena and promoted stronger O<span></span>CO interactions, which increased the storage modulus from 195.5 to 380.8 MPa and from 78.0 to 134 MPa, respectively. Conversely, SBM showed lower interactions C<span></span>C and high C<span></span>OH bonds that reduced the component adhesion. Thus, the matrix type and extrusion process determined the chemical interaction with BM, resulting in films with different rigidity that can be useful in different sustainable packaging solutions.</p>\u0000 </div>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of Metal-Modified Nanocellulose as a Biofilm Analogue for Biofilm Mimicry in Biomedical and Environmental Applications 金属修饰纳米纤维素作为生物膜模拟物的合成及其在生物医学和环境中的应用

IF 3.2 4区生物学

Biopolymers Pub Date : 2025-05-30 DOI: 10.1002/bip.70029

Darryl W. Taylor, A-Andrew D. Jones III

{"title":"Synthesis of Metal-Modified Nanocellulose as a Biofilm Analogue for Biofilm Mimicry in Biomedical and Environmental Applications","authors":"Darryl W. Taylor, A-Andrew D. Jones III","doi":"10.1002/bip.70029","DOIUrl":"https://doi.org/10.1002/bip.70029","url":null,"abstract":"<div>\u0000 \u0000 <p>Bacterial biofilms are complex, multi-component structures consisting primarily of four key elements: polysaccharides, metal ions, proteins, and extracellular DNA. In our research, we specifically focus on the polysaccharide and metal ion components, which play a crucial role in determining the biofilm's mechanical properties. Polysaccharides provide the structural matrix, although metal ions, particularly divalent cations like calcium and cobalt, cross-link with the polysaccharides, thereby modulating the biofilm's rigidity and viscoelastic behavior. By introducing divalent cations into nanocellulose, we can replicate this natural cross-linking process, allowing us to finely tune the material's mechanical properties to more closely resemble those of bacterial biofilms. This approach not only enhances the accuracy of synthetic biofilm models over alginate hydrogels but also provides valuable insights into how biofilms maintain their structural integrity in various environments. Our findings indicate that nanocellulose exhibits mechanical properties closer to biofilms than alginate analogs, making it a suitable non-living control for biofilm studies. Furthermore, divalent nickel, followed by calcium and magnesium, demonstrate a closer mechanical mimicry to biofilms. In conclusion, this research shows the potential of nanocellulose as a versatile material for bacterial biofilm mimicry.</p>\u0000 </div>","PeriodicalId":8866,"journal":{"name":"Biopolymers","volume":"116 4","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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