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The Effects of Polymerization on the Performance of Viologen-Based Electrochromic Devices. 聚合对基于 Viologen 的电致变色装置性能的影响。
IF 5 3区 化学
Gels Pub Date : 2024-10-25 DOI: 10.3390/gels10110694
Antonello Nucera, Carmen Rizzuto, Mario Michele Pipita, Irene Barba Castagnaro, Roberto Termine, Riccardo C Barberi, Marco Castriota
{"title":"The Effects of Polymerization on the Performance of Viologen-Based Electrochromic Devices.","authors":"Antonello Nucera, Carmen Rizzuto, Mario Michele Pipita, Irene Barba Castagnaro, Roberto Termine, Riccardo C Barberi, Marco Castriota","doi":"10.3390/gels10110694","DOIUrl":"10.3390/gels10110694","url":null,"abstract":"<p><p>In this work, electrochromic devices were prepared using the redox couple ethyl viologen diperchlorate and 1,1'-diethyl ferrocene in propylene carbonate as an aprotic solvent to facilitate ions separation and diffusion inside the devices. Electrochromic devices were made using electrochromic gel mixtures at the concentrations of 55%, 60% and 65% with respect to the bisphenol A polymer. In particular, two sets of gels were made: one set contained the bisphenol A not-polymerized while and the second one contained the polymerized polymer. Different techniques, such as cyclic voltammetry, UV-vis-NIR, and Raman spectroscopy, were used to study such systems to understand the differences in terms of performances between the different sets of electrochromic devices. Cyclic voltammetry confirmed that the oxidation process of the 1,1'-diethyl ferrocene and the reduction of the ethyl viologen diperchlorate occurred at about 0.4 V. Interesting variations in the transmittances were found between the two groups of samples. The best values of CE were provided by the electrochromic devices based on the polymerized electrochromic gel mixture at a concentration of 60% (EM<sub>60</sub>). The EM<sub>60</sub> device result was CE = 92.82 C/cm<sup>2</sup> in the visible region and CE = 80.38 C/cm<sup>2</sup> in the near-infrared region, confirming that these devices can be used for energy-saving applications. A structural characterization of the materials used in the two sets of electrochromic devices was made using Raman spectroscopy, and the analysis supports the electrochemical models used to explain the processes involved during operation of the electrochromic systems.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11593626/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Review of Advanced Hydrogel Applications for Tissue Engineering and Drug Delivery Systems as Biomaterials. 组织工程和药物输送系统作为生物材料的先进水凝胶应用综述。
IF 5 3区 化学
Gels Pub Date : 2024-10-25 DOI: 10.3390/gels10110693
Hoon Choi, Wan-Sun Choi, Jin-Oh Jeong
{"title":"A Review of Advanced Hydrogel Applications for Tissue Engineering and Drug Delivery Systems as Biomaterials.","authors":"Hoon Choi, Wan-Sun Choi, Jin-Oh Jeong","doi":"10.3390/gels10110693","DOIUrl":"https://doi.org/10.3390/gels10110693","url":null,"abstract":"<p><p>Hydrogels are known for their high water retention capacity and biocompatibility and have become essential materials in tissue engineering and drug delivery systems. This review explores recent advancements in hydrogel technology, focusing on innovative types such as self-healing, tough, smart, and hybrid hydrogels, each engineered to overcome the limitations of conventional hydrogels. Self-healing hydrogels can autonomously repair structural damage, making them well-suited for applications in dynamic biomedical environments. Tough hydrogels are designed with enhanced mechanical properties, enabling their use in load-bearing applications such as cartilage regeneration. Smart hydrogels respond to external stimuli, including changes in pH, temperature, and electromagnetic fields, making them ideal for controlled drug release tailored to specific medical needs. Hybrid hydrogels, made from both natural and synthetic polymers, combine bioactivity and mechanical resilience, which is particularly valuable in engineering complex tissues. Despite these innovations, challenges such as optimizing biocompatibility, adjusting degradation rates, and scaling up production remain. This review provides an in-depth analysis of these emerging hydrogel technologies, highlighting their transformative potential in both tissue engineering and drug delivery while outlining future directions for their development in biomedical applications.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142726859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Smart Nanocomposite Hydrogels as Next-Generation Therapeutic and Diagnostic Solutions. 作为新一代治疗和诊断解决方案的智能纳米复合水凝胶。
IF 5 3区 化学
Gels Pub Date : 2024-10-24 DOI: 10.3390/gels10110689
Anna Valentino, Sorur Yazdanpanah, Raffaele Conte, Anna Calarco, Gianfranco Peluso
{"title":"Smart Nanocomposite Hydrogels as Next-Generation Therapeutic and Diagnostic Solutions.","authors":"Anna Valentino, Sorur Yazdanpanah, Raffaele Conte, Anna Calarco, Gianfranco Peluso","doi":"10.3390/gels10110689","DOIUrl":"https://doi.org/10.3390/gels10110689","url":null,"abstract":"<p><p>Stimuli-responsive nanocomposite gels combine the unique properties of hydrogels with those of nanoparticles, thus avoiding the suboptimal results of single components and creating versatile, multi-functional platforms for therapeutic and diagnostic applications. These hybrid materials are engineered to respond to various internal and external stimuli, such as temperature, pH, light, magnetic fields, and enzymatic activity, allowing precise control over drug release, tissue regeneration, and biosensing. Their responsiveness to environmental cues permits personalized medicine approaches, providing dynamic control over therapeutic interventions and real-time diagnostic capabilities. This review explores recent advances in stimuli-responsive hybrid gels' synthesis and application, including drug delivery, tissue engineering, and diagnostics. Overall, these platforms have significant clinical potential, and future research is expected to lead to unique solutions to address unmet medical needs.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailored 3D Agarose-Well Integrated with Human Skin Equivalents for Enhanced Skin Penetration Assessment. 定制的三维琼脂糖孔与人体皮肤等效物集成,用于增强皮肤穿透性评估。
IF 5 3区 化学
Gels Pub Date : 2024-10-24 DOI: 10.3390/gels10110691
Chaewon Woo, Jina Byun, Sung Gyu Shin, Heeseon Yoo, Sungwoo Cho, Donghun Lee, Taezoon Park, Jae Hyun Jeong
{"title":"Tailored 3D Agarose-Well Integrated with Human Skin Equivalents for Enhanced Skin Penetration Assessment.","authors":"Chaewon Woo, Jina Byun, Sung Gyu Shin, Heeseon Yoo, Sungwoo Cho, Donghun Lee, Taezoon Park, Jae Hyun Jeong","doi":"10.3390/gels10110691","DOIUrl":"https://doi.org/10.3390/gels10110691","url":null,"abstract":"<p><p>We developed a tailored 3D Agarose-well system integrated with reconstructed human skin equivalents to enhance skin penetration assessments. This system addresses common limitations in traditional trans-well reconstructions, such as dermal layer contraction and limited lateral diffusion, by entangling collagen fibrils within the Agarose-well. We evaluated the penetration behavior of three peptides, with and without skin-penetrating peptide (SPP) sequences, alongside adenosine, a known anti-wrinkle agent. Despite a SPP having a molecular weight approximately four times greater than that of adenosine, its kinetic constant was similar, with values of about 39 and 34, respectively. Moreover, this living skin equivalent system not only allowed for the evaluation of adenosine penetration, but also demonstrated its biological effects, with adenosine significantly enhancing procollagen synthesis by approximately 23% compared to the control. Overall, this novel strategy holds the potential for tailoring 3D Agarose-wells and advancing high-performance gel development, making it a promising approach for applications in tissue engineering, medical science, regenerative medicine, and cosmetics.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stabilization of Oil-in-Water Pickering Emulsions by Surface-Functionalized Cellulose Hydrogel. 利用表面功能化纤维素水凝胶稳定水包油型皮克林乳液
IF 5 3区 化学
Gels Pub Date : 2024-10-24 DOI: 10.3390/gels10110685
Inimfon A Udoetok, Mohamed H Mohamed, Lee D Wilson
{"title":"Stabilization of Oil-in-Water Pickering Emulsions by Surface-Functionalized Cellulose Hydrogel.","authors":"Inimfon A Udoetok, Mohamed H Mohamed, Lee D Wilson","doi":"10.3390/gels10110685","DOIUrl":"10.3390/gels10110685","url":null,"abstract":"<p><p>An amphiphilic cellulose (<b>CLH</b>) hydrogel was synthesized via grafting of quaternary ammonium groups onto cellulose. The structural properties of <b>CLH</b> were characterized via Fourier transform infrared (FTIR)/<sup>13</sup>C solid-state NMR spectroscopy, elemental (CHN) analysis, particle size distribution (PSD), thermogravimetric analysis (TGA), and wettability was assessed through contact angle measurements. Pickering emulsions of apolar oils in water were prepared using variable weights of the <b>CLH</b> hydrogel as the stabilizing agent, along with different methods of agitation (mechanical shaking and sonication). The characterization results for <b>CLH</b> provide support for the successful grafting of quaternary ammonium groups onto cellulose to produce hydrogels. Different methods of agitation of an oil/water mixture revealed the formation of an <i>oil-in-water</i> (O/W) Pickering emulsion that was stable to coalescence for over 14 days. The resulting emulsions showed variable droplet sizes and stability according to the dosage of <b>CLH</b> in the emulsion and the agitation method, where the emulsion droplet size is related to the particle size of <b>CLH</b>. The addition of methyl orange (MO), a probe to evaluate the phase partitioning of the dye, had minor effects on the emulsion droplet size, and the emulsion prepared with 0.8 wt.% of <b>CLH</b> and agitated via sonication exhibited the smallest droplet size and greatest stability. This study is anticipated to catalyze further research and the development of low-cost and sustainable biopolymer hydrogels as stabilizers for tunable Pickering emulsion. Grafted cellulose materials of this type represent versatile stabilizing agents for foods, agrochemicals, and pharmaceutical products and technologies.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11593766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel, Speedy, and Eco-Friendly Carboxymethyl Cellulose-Nitrogen Doped Carbon Dots Biosensors with DFT Calculations, Molecular Docking, and Experimental Validation. 通过 DFT 计算、分子对接和实验验证的新型、快速和环保的羧甲基纤维素-掺氮碳点生物传感器
IF 5 3区 化学
Gels Pub Date : 2024-10-24 DOI: 10.3390/gels10110686
Hebat-Allah S Tohamy
{"title":"Novel, Speedy, and Eco-Friendly Carboxymethyl Cellulose-Nitrogen Doped Carbon Dots Biosensors with DFT Calculations, Molecular Docking, and Experimental Validation.","authors":"Hebat-Allah S Tohamy","doi":"10.3390/gels10110686","DOIUrl":"10.3390/gels10110686","url":null,"abstract":"<p><p>Carboxymethyl cellulose (CMC) was prepared from sugarcane bagasse (SB) in minutes using a novel microwave method. Additionally, nitrogen-doped carbon dots (N-CDs) were synthesized from SB using the same microwave technique. These materials were crosslinked with CaCl<sub>2</sub> to prepare antibacterial/antifungal hydrogel sensors. In this regard, both CMC@Ca and CMC@Ca-N-CDs exhibited antibacterial activity against <i>Escherichia coli</i> (Gram negative), while only CMC@Ca-N-CDs demonstrated antibacterial activity against <i>Staphylococcus aureus</i> (Gram positive). Moreover, both materials showed antifungal activity against <i>Candida albicans</i>. The molecular docking study demonstrated that CMC@Ca-N-CDs showed good binding with proteins with short bond length 2.59, 2.80, and 1.97 A° for <i>Escherichia coli</i>, <i>Staphylococcus aureus</i>, and <i>Candida albicans</i>, respectively. These binding affinities were corroborated by the observed inhibition zone diameters. Furthermore, fluorescence microscope revealed distinct imaging patterns between Gram-positive and Gram-negative bacteria, as well as pathogenic yeast (fungi). CMC@Ca-N-CDs emitted blue light when exposed to <i>Escherichia coli</i> and <i>Candida albicans</i> (i.e., CMC@Ca-N-CDs/<i>Escherichia coli</i> and <i>Candida albicans</i>), whereas it emitted bright-red light when exposed to <i>Staphylococcus aureus</i> (i.e., CMC@Ca-N-CDs/<i>Staphylococcus aureus</i>). This disparity in the fluorescence-emitted colors is due to the difference in the cell wall of these microorganisms. Additionally, DFT calculations were conducted to substantiate the robust chemical interactions between CMC, Ca<sup>2+</sup>, and N-CDs.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11593792/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Potentiality of Antibacterial Gels for the Prophylactic Coating of Hernia Repair Prosthetic Materials. 抗菌凝胶在疝修复假体材料预防性涂层中的应用潜力
IF 5 3区 化学
Gels Pub Date : 2024-10-24 DOI: 10.3390/gels10110687
Bárbara Pérez-Köhler, Selma Benito-Martínez, Celia Rivas-Santos, Verónica Gómez-Gil, Francisca García-Moreno, Gemma Pascual
{"title":"Potentiality of Antibacterial Gels for the Prophylactic Coating of Hernia Repair Prosthetic Materials.","authors":"Bárbara Pérez-Köhler, Selma Benito-Martínez, Celia Rivas-Santos, Verónica Gómez-Gil, Francisca García-Moreno, Gemma Pascual","doi":"10.3390/gels10110687","DOIUrl":"10.3390/gels10110687","url":null,"abstract":"<p><p>Prosthetic mesh infection constitutes one of the major postsurgical complications following abdominal hernia repair. Antibacterial coatings represent a prophylactic strategy to reduce the risk of infection. This study assessed the in vitro response of two antibacterial gels made of 1% carboxymethylcellulose (CMC) functionalized with an antiseptic (chlorhexidine, CHX) or an antibiotic (rifampicin, RIF), developed for the coating of polypropylene (PP) meshes for hernia repair. Fragments of a lightweight PP mesh (1 cm<sup>2</sup>) presoaked in the unloaded or drug-loaded CMC (0.05% CHX; 0.13 mg/mL RIF) were challenged with 10<sup>6</sup> CFU/mL <i>Staphylococcus aureus</i> (Sa) and methicillin-resistant <i>S. aureus</i> (MRSA). Agar diffusion tests, sonication, turbidimetry, crystal violet staining, scanning electron microscopy and cell viability assays (fibroblasts, mesothelial cells) were performed to evaluate the response of the gels. Both compounds-especially the RIF-loaded gel-exerted a biocidal effect against gram-positive bacteria, developing wide inhibition halos, precluding adhesion to the mesh surface, and hampering bacterial survival in culture. The antibiotic gel proved innocuous, while lower viability was found in cells exposed to the antiseptic (<i>p</i> < 0.05). Together with their fast, affordable, convenient processing and easy application, the results suggest the potential effectiveness of these drug-loaded CMC gels in providing meshes with an antibacterial coating exhibiting great biocide performance.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11593720/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of a Solvent Exchange Method Enabling the Use of Dehydrated Cellulose Nanofibers as the Thickener in Lubricating Oleogels. 优化溶剂交换法,使脱水纤维素纳米纤维可用作润滑油凝胶的增稠剂。
IF 5 3区 化学
Gels Pub Date : 2024-10-24 DOI: 10.3390/gels10110690
María García-Pérez, Claudia Roman, Samuel D Fernández-Silva, Miguel A Delgado, Moisés García-Morales
{"title":"Optimization of a Solvent Exchange Method Enabling the Use of Dehydrated Cellulose Nanofibers as the Thickener in Lubricating Oleogels.","authors":"María García-Pérez, Claudia Roman, Samuel D Fernández-Silva, Miguel A Delgado, Moisés García-Morales","doi":"10.3390/gels10110690","DOIUrl":"10.3390/gels10110690","url":null,"abstract":"<p><p>A method that enabled the formulation of lubricating oleogels using dried cellulose nanofibers (CNFs) as an eco-friendly thickener in castor oil was studied. In their dehydrated state, strong hydrogen bonding between nanofibers and high hydrophilicity are the main obstacles to their dispersion in oil. Hence, clusters of dried CNFs had to be previously detached by their dispersion in water. The resulting hydrogels were then subjected to methanol washes to displace the water from the nanofibers. After centrifugation, the methanol-wetted precipitate was readily dispersed in castor oil, forming an oleogel once the methanol was removed. Optimization was conducted in terms of the following variables: (a) hydrogel processing method; (b) hydrogel pH; (c) methanol/hydrogel ratio; (d) number of washes; and (e) oleogel CNF concentration. Their effect on the oleogel linear viscoelastic behavior was analyzed. In general, they demonstrated a prevailing elastic behavior denoted by a well-developed plateau region. The CNF concentration was found to have a more remarkable impact on the oleogels' rheological behavior than any other variable studied. Hence, substantial differences were observed between 1 and 2 wt.%. The CNFs exhibited a very remarkable thickening capacity in castor oil, achieving a plateau modulus of ca. 700 Pa with just 2 wt.%. Moreover, the resulting oleogels maintained a uniform texture even after one year of storage. This indicates that the oleogels were both homogeneous and storage stable, effectively overcoming the stability issues associated with direct dispersion of dried CNFs in castor oil.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11593395/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Conductive-Polymer-Based Double-Network Hydrogels for Wearable Supercapacitors. 用于可穿戴超级电容器的导电聚合物双网水凝胶。
IF 5 3区 化学
Gels Pub Date : 2024-10-24 DOI: 10.3390/gels10110688
Bu Quan, Linjie Du, Zixuan Zhou, Xin Sun, Jadranka Travas-Sejdic, Bicheng Zhu
{"title":"Conductive-Polymer-Based Double-Network Hydrogels for Wearable Supercapacitors.","authors":"Bu Quan, Linjie Du, Zixuan Zhou, Xin Sun, Jadranka Travas-Sejdic, Bicheng Zhu","doi":"10.3390/gels10110688","DOIUrl":"https://doi.org/10.3390/gels10110688","url":null,"abstract":"<p><p>In the field of contemporary epidermal bioelectronics, there is a demand for energy supplies that are safe, lightweight, flexible and robust. In this work, double-network polymer hydrogels were synthesized by polymerization of 3,4-ethylenedioxythiophene (EDOT) into a poly(vinyl alcohol)/poly(ethylene glycol diacrylate) (PVA/PEGDA) double-network hydrogel matrix. The PEDOT-PVA/PEGDA double-network hydrogel shows both excellent mechanical and electrochemical performance, having a strain up to 498%, electrical conductivity as high as 5 S m<sup>-1</sup> and specific capacitance of 84.1 ± 3.6 mF cm⁻<sup>2</sup>. After assembling two PEDOT-PVA/PEGDA double-network hydrogel electrodes with the free-standing boron cross-linked PVA/KCl hydrogel electrolyte, the formed supercapacitor device exhibits a specific capacitance of 54.5 mF cm⁻<sup>2</sup> at 10 mV s<sup>-1</sup>, with an energy density of 4.7 μWh cm<sup>-2</sup>. The device exhibits excellent electrochemical stability with 97.6% capacitance retention after 3000 charging-discharging cycles. In addition, the hydrogel also exhibits great sensitivity to strains and excellent antifouling properties. It was also found that the abovementioned hydrogel can achieve stable signals under both small and large deformations as a flexible sensor. The flexible and antifouling PEDOT-PVA/PEGDA double-network hydrogel-based supercapacitor is a promising power storage device with potential applications in wearable electronics.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rheological and Textural Investigation to Design Film for Packaging from Potato Peel Waste. 利用马铃薯皮废料设计包装薄膜的流变学和纹理研究
IF 5 3区 化学
Gels Pub Date : 2024-10-23 DOI: 10.3390/gels10110681
Olga Mileti, Noemi Baldino, Vittoria Marchio, Francesca R Lupi, Domenico Gabriele
{"title":"Rheological and Textural Investigation to Design Film for Packaging from Potato Peel Waste.","authors":"Olga Mileti, Noemi Baldino, Vittoria Marchio, Francesca R Lupi, Domenico Gabriele","doi":"10.3390/gels10110681","DOIUrl":"10.3390/gels10110681","url":null,"abstract":"<p><p>The recovery of potato waste for circular-economy purposes is a growing area of industrial research. This waste, rich in nutrients and potential for reuse, can be a valuable source of starch for packaging applications. Rheology plays a crucial role in characterizing film-forming solutions before casting. In this work, packaging film was prepared from potato waste using rheological information to formulate the film-forming solution. To this aim, rheological measurements were carried out on starch/glycerol-only samples, and the data obtained were used to optimize the formulation from the waste. The polyphenol content of the peels was analyzed, and the resulting films were comprehensively characterized. This included assessments of color, extensibility, Fourier-transform infrared (FT-IR) spectroscopy, surface microscopy, and contact angle. Polyphenol-loaded films, suitable for packaging applications, were developed from potato waste. These films exhibited distinct properties compared to those made with pure starch, including an improved wettability of about 75° for the best sample and a high elastic modulus of about 36 MPa, which reduces the deformability but enhances the resistance against the stress. Through rheological studies, we were able to design films from potato peel waste. These films demonstrated promising mechanical performance.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 11","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11593490/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142727633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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