Gels最新文献

{"title":"Designing Spoonable Milk Kefir Gels: From Fermentation Optimization to Clean-Label Gel Structuring with Psyllium.","authors":"María Cardenete-Fernández, Alicia Castillo-Rivas, M Montaña Durán-Barrantes, Luis A Trujillo-Cayado, Jenifer Santos","doi":"10.3390/gels11090693","DOIUrl":"10.3390/gels11090693","url":null,"abstract":"<p><p>Kefir is a fermented dairy product whose structural properties can be modified to enhance its nutritional and sensory profile. The objective of this study was to develop spoonable milk kefir gels by optimizing fermentation conditions and incorporating psyllium and calcium chloride as structuring agents. In the initial phase of the study, a full factorial design was employed to conduct a comparative analysis of whole milk and skimmed milk during the fermentation process of kefir. The study encompassed the evaluation of the impact of various parameters, including inoculum level, temperature, and fermentation time, on the acidification kinetics of the fermentation process. This evaluation was facilitated through the measurement of pH and total acidity levels. Skimmed milk demonstrated accelerated acidification, consistently attaining a final pH of 4.08 and a total acidity of 9.99 g·L^-1 lactic acid equivalents under optimized conditions (5.5% weight:weight grains, 26 °C, 24 h). In the subsequent phase, kefir obtained under these conditions was gelled with varying concentrations of psyllium and calcium chloride. Rheological characterization revealed that psyllium markedly strengthened the gel network: at 3.06% <i>w</i>:<i>w</i> psyllium, the elastic modulus increased up to 209.6 Pa, while the critical stress improved from 0.64 Pa at low psyllium/Ca²⁺ to 10.42 Pa at high psyllium content. Furthermore, zero-shear viscosity increased substantially, exceeding 1500 Pa·s in high-psyllium, low-calcium formulations. The findings demonstrate that combining fermentation optimization with clean-label structuring agents enables the development of low-fat kefir gels with enhanced textural and processing properties, supporting their potential as synbiotic, functional dairy products.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12469569/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148732","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}

{"title":"Photothermal and Magnetic Actuation of Multimodal PNIPAM Hydrogel-Based Soft Robots.","authors":"Xiangyu Teng, Zhizheng Gao, Xuehao Feng, Shuliang Zhu, Wenguang Yang","doi":"10.3390/gels11090692","DOIUrl":"10.3390/gels11090692","url":null,"abstract":"<p><p>Soft robot motion performance has long been a core focus in scientific research. This study investigates the motion capabilities of soft robots constructed using poly(N-isopropylacrylamide) (PNIPAM) hydrogels, with key innovations in material design and functional enhancement. By optimizing the hydrogel formulation and incorporating molybdenum disulfide (MoS₂) to endow it with photothermal response properties, the material achieves muscle-like controllable contraction and expansion deformation-a critical breakthrough in mimicking biological motion mechanics. Building on this material advancement, the research team developed a series of soft robotic prototypes to systematically explore the hydrogel's motion characteristics. A flytrap-inspired soft robot demonstrates rapid opening-closing movements, replicating the swift responsiveness of natural carnivorous plants. For terrestrial locomotion, a hexapod crawling robot utilizes the photo-induced stretch-recovery mechanism of both horizontally configured and pre-bent feet to achieve stable directional propulsion. Most notably, a magnetically driven rolling robot integrates magnetic units to realize versatile multimodal movement: it achieves a stable rolling speed of 1.8 cm/s across flat surfaces and can surmount obstacles up to 1.5 times its own body size. This work not only validates the strong potential of PNIPAM hydrogel-based soft robots in executing complex motion tasks but also provides valuable new insights for the development of multimodal soft robotic systems, paving the way for future innovations in adaptive and bio-inspired robotics.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12469388/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148775","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}

{"title":"The Impact of GAGs, Cross-Link Maturity and Telopeptides on the Formation of a Porcine Collagen-Based Hydrogel.","authors":"Monika Šupová, Šárka Rýglová, Tomáš Suchý, Margit Žaloudková, Martin Braun","doi":"10.3390/gels11090695","DOIUrl":"10.3390/gels11090695","url":null,"abstract":"<p><p>Collagen hydrogels serve as biomimetic scaffolds that closely resemble the natural extracellular matrix, thus providing an ideal 3D biocompatible environment for cells. However, based on our previous experience, not all collagen isolates are capable of gelling, which appears to depend on the type, origin, species, age and sex of the source animal and the collagen isolation method applied. We therefore decided to evaluate porcine collagen-rich materials isolated from two different porcine genotypes applying two different specific isolation methods, and to analyse other main components, i.e., lipids and glycosaminoglycans, as well as amino acid composition and structural and morphological properties. While all the collagen isolates obtained were subjected to the gelling process, only one of them successfully gelled. In addition, the gelling ability of this isolate was confirmed repeatedly on collagens that were isolated from other pigs of the same porcine genotype. The results revealed that the gelling process proceeds via cooperation between the composition and the structure of the collagen isolate. With respect to the composition, one of the most important factors in terms of the success of the gelation process of collagen isolates concerns elevated glycosaminoglycan contents. The structural factors that characterise collagen isolates, i.e., cross-links (immature and mature) and their mutual ratio, as well as the presence of telopeptides, strongly impact the progress of the gelling process and the resulting character of the hydrogel structure. All these factors are influenced by the isolation procedure.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470094/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148802","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}

{"title":"Development and Mechanistic Evaluation of Polymeric Nanomicrogels Under High-Temperature and High-Salinity Conditions.","authors":"Wei Zhang, Yinbo He, Tengfei Dong, Huayan Mu, Guancheng Jiang, Quande Wang","doi":"10.3390/gels11090689","DOIUrl":"10.3390/gels11090689","url":null,"abstract":"<p><p>Fracture-induced loss poses severe challenges to drilling operations, particularly under high-temperature and high-salinity conditions encountered in deep wells. Conventional plugging materials, characterized by relatively large particle sizes and poor structural integrity, often exhibit insufficient thermal stability and salt tolerance under extreme drilling conditions, making them prone to structural degradation and loss of adhesion, which ultimately leads to drilling fluid deterioration and downhole complications. To address this issue, a core-shell-structured microgel, ANDT-70 (named after the acronyms of 2-acrylamido-2-methylpropane sulfonic acid, N-vinyl-2-pyrrolidinone, N, N-dimethylacrylamide, dimethyl diallyl ammonium chloride, and titanium dioxide nanoparticles), was synthesized and systematically evaluated for its thermal stability, salt resistance, and interfacial adhesion capabilities. The structural evolution, dispersion behavior, and colloidal stability of the microgel were thoroughly characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), Raman spectroscopy, and Zeta potential analysis. Experimental results indicate that ANDT-70 exhibits excellent thermal stability and resistance to salt-induced degradation at 260 °C, maintaining its fundamental structure and performance under harsh high-temperature and high-salinity conditions, with a viscosity retention of 81.10% compared with ambient conditions. Compared to representative materials reported in the literature, ANDT-70 exhibited superior tolerance to ionic erosion in saline conditions. AFM analysis confirmed that ANDT-70 significantly improves bentonite slurry dispersion and reduces salt sensitivity risks. ANDT-70 stably adsorbs onto bentonite lamellae via the synergistic action of electrostatic interactions and hydrogen bonding, thereby forming a dense cementation network that markedly enhances the structural stability and adhesion of the system. This network significantly enhances the cohesion and structural integrity of drilling fluid systems under extreme conditions. In conclusion, ANDT-70 demonstrates strong potential as a high-performance functional microgel for enhancing the stability and effectiveness of advanced drilling fluids under complex geological environments.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12469607/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148642","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}

{"title":"Tuning Pluronic Hydrogel Networks: Effects of Vancomycin Loading on Gelation, Rheological Properties, and Micellar Structures.","authors":"Michael J Gaffney, Qi Han, Kate Fox, Nhiem Tran","doi":"10.3390/gels11090688","DOIUrl":"10.3390/gels11090688","url":null,"abstract":"<p><p>Thermoresponsive Pluronic hydrogels offer a promising platform for localised antibiotic delivery. However, how drug loading affects the structural integrity and gelation of these systems remains underexplored. This study evaluates the impact of vancomycin on the physicochemical and self-assembly behaviour of Pluronic F127, F108, and F68 hydrogels. Rheological analysis revealed that vancomycin altered the critical micellisation and gelation temperatures (CMT and CGT, respectively), accelerating gelation in weak gel systems but disrupting network formation in stronger gels. Small-angle X-ray scattering (SAXS) showed that vancomycin suppressed micellar ordering, particularly along FCC (111) planes in F127, without inducing a phase transition. Scanning electron microscopy (SEM) imaging confirmed reduced pore integrity in vancomycin-loaded F127 and F108 gels, while 35% F68 gels failed to form stable structures at the tested concentrations despite enhanced drug solubility. F127 (18%) and F108 (22-23%) maintained gelation at 37 °C with reasonable mechanical strength and partial cubic ordering, making them suitable candidates for drug-eluting gels. These findings inform the design of thermoresponsive hydrogels for localised, implant-associated antibiotic delivery.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12469747/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148763","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}

{"title":"Enhancing Rheology and Wettability of Drilling Fluids at Ultra-Low Temperatures Using a Novel Amide Material.","authors":"Ning Huang, Jinsheng Sun, Jingping Liu, Kaihe Lv, Xuefei Deng, Taifeng Zhang, Yuanwei Sun, Han Yan, Delin Hou","doi":"10.3390/gels11090687","DOIUrl":"10.3390/gels11090687","url":null,"abstract":"<p><p>The ice sheet and subglacial geological environment in Antarctica have become the focus of scientific exploration. The development of Antarctic drilling technology will serve as a crucial safeguard for scientific exploration. However, the extremely ultra-low temperatures and intricate geological conditions present substantial obstacles for drilling operations in Antarctica, and the existing drilling fluid technology cannot satisfy the requirements of efficient and safe drilling. To ameliorate the wettability and rheology of ultra-low-temperature drilling fluids, a new amide material (HAS) was prepared using dodecylamine polyoxyethylene ether, azelaic acid, and <i>N</i>-ethylethylenediamine as raw materials. Experiments using infrared spectroscopy, nuclear magnetic hydrogen spectroscopy, and contact angle indicated that the target product was successfully synthesized. Performance evaluation showed that 2% HAS could achieve a yield point of 2.5 Pa for drilling fluid at -55 °C, and it also gave the fluid superior shear-thinning characteristics and a large thixotropic loop area. This indicated that HAS significantly enhanced the rheological properties of the drilling fluid, ensuring that it can carry cuttings and ice debris. In addition, 2% HAS could also increase the colloidal rate from 8% to more than 76% at -55 °C in different base oils. Meanwhile, the colloid rate was maintained above 92.4% when the density was 0.92~0.95 g/cm³. Mechanism studies showed that HAS increased the zeta potential and decreased the particle size of organoclay. At the same time, it changed the organoclay state from a clustered state to a uniformly dispersed state, and the particle size decreased. It was found that HAS formed a weak gel grid structure through interactions between polar groups, such as amide and imino groups with organoclays particles, thus improving the rheology and wettability of drilling fluid. In addition, HAS is an environmentally friendly high-performance material.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12469316/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148638","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}

{"title":"Degradation of Polymers and Heavy Metals in Waste Drilling Fluid by Sulfur-Doped BiOBr_0.5Cl_0.5 Photocatalysts.","authors":"Tengfei Dong, Guancheng Jiang, Sihe Jiang, Yinbo He, Lili Yang","doi":"10.3390/gels11090684","DOIUrl":"10.3390/gels11090684","url":null,"abstract":"<p><p>Waste drilling fluids represent a complex gel-colloidal system containing structurally stable polymeric networks and heavy-metal ions that can cause tremendous damage to the ecosystem. The current disposal methods, like solidification/landfills, formation reinjection, and chemical treatment, commonly suffer from high secondary pollution risks, poor resource recovery, and incomplete detoxification. This paper developed a photocatalytic approach to complex gel system treatment by hydrothermally synthesizing a novel sulfur-doped, oxygen-vacancy-modified 3D flower-like xS-BiOBr_0.5Cl_0.5 structure which effectively narrowed the bandgap of BiOX and thus significantly enhanced its catalytic activity. The chemical composition, morphology, specific surface areas, and bandgaps of the materials were characterized. The photocatalytic performance and cyclic stability of the materials were measured, and 0.5S-BiOBr_0.5Cl_0.5 showed the best photocatalytic performance. The rhodamine B(RhB) degradation and polymer degradation efficiencies of 0.5S-BiOBr_0.5Cl_0.5 were up to 91% and 79%, respectively, while the Hg(II), Cr(VI), and Cr(III) reduction efficiencies of the material were up to 48.10%, 96.58%, and 96.41%, respectively. The photocatalytic mechanism of the xS-BiOBr_0.5Cl_0.5 materials was evaluated through an oxygen vacancy analysis, active species capture experiments, and density functional theory (DFT) computations. Overall, the xS-BiOBr_0.5Cl_0.5 materials can provide a low-cost and harmless treatment method for waste drilling fluids and promote the \"green\" development of oil and gas.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12469768/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148654","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}

{"title":"Experimental Investigation of Deformable Gel Particles (DGPs) for Plugging Pan-Connected Interlayer Channels in High-Water-Cut Reservoirs.","authors":"Wenjing Zhao, Jing Wang, Tianjiang Wu, Ronald Omara Erik, Zhongyang Qi, Huiqing Liu","doi":"10.3390/gels11090686","DOIUrl":"10.3390/gels11090686","url":null,"abstract":"<p><p>Pan-connected interlayers are widely present in oil reservoirs, forming flow channels at different positions. However, conventional profile control agents struggle to plug deep interlayer channels in reservoirs, limiting the swept volume of injected water. Additionally, a clear methodology for physically simulating pan-connected reservoirs with interlayer channels and calculating interchannel flow rates remains lacking. In this study, a physical model of pan-connected interlayer reservoirs was constructed to carry out deformable gel particles (DGPs) plugging experiments on interlayer channels. A mass conservation-based flow rate calculation method for interlayer channels with iterative solution was proposed, revealing the variation law of interlayer channel flow rates during DGP injection and subsequent water flooding. Finally, oil displacement and DGP profile control experiments in pan-connected interlayer reservoirs were conducted. The study shows that during DGP injection, injected water enters the potential layer through interlayer channels in the middle and front of the water-channeling layer and bypasses back to the water-channeling layer through channels near the production well. With the increase in DGP injection volume, the flow rate of each channel increases. During subsequent water flooding, DGP breakage leads to a rapid decline in its along-path plugging capability, so water bypasses back to the water-channeling layer from the potential layer through all interlayer channels. As the DGP injection volume increases, the flow rate of each channel decreases. Large-volume DGPs can regulate interlayer channeling reservoirs in the high water cut stage. Its effectiveness mechanism involves particle migration increasing the interlayer pressure difference, which drives injected water to sweep from the water-channeling layer to the potential layer through interlayer channels, improving oil recovery by 19.74%. The flow characteristics of interlayer channels during DGP injection play a positive role in oil displacement, so the oil recovery degree in this process is greater than that in the subsequent water flooding stage under each injection volume condition. The core objective of this study is to investigate the plugging mechanism of DGPs in pan-connected interlayer channels of high-water-cut reservoirs, establish a method to quantify interlayer flow rates, and reveal how DGPs regulate flow redistribution to enhance oil recovery.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12469935/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148678","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}

{"title":"Carbon Nitride Gels: Synthesis, Modification, and Water Decontamination Applications.","authors":"Qinglan Tang, Zhen Zhang, Yuwei Pan, Michael K H Leung, Yizhen Zhang, Keda Chen","doi":"10.3390/gels11090685","DOIUrl":"10.3390/gels11090685","url":null,"abstract":"<p><p>Graphitic carbon nitride (g-C₃N₄)-based materials hold significant promise for environmental remediation, particularly water purification, owing to their unique electronic structure, metal-free composition, and robust chemical stability. However, powdered g-C₃N₄ faces challenges such as particle aggregation, poor recyclability, and limited exposure of active sites. Structuring g-C₃N₄ into hydrogels or aerogels-three-dimensional porous networks offering high surface area, rapid mass transport, and tunable porosity-represents a transformative solution. This review comprehensively examines recent advances in g-C₃N₄-based gels, covering synthesis strategies such as crosslinking (physical/chemical), in situ polymerization, and the sol-gel and template method. Modification approaches including chemical composition and structural engineering are systematically categorized to elucidate their roles in optimizing catalytic activity, stability, and multifunctionality. Special emphasis is placed on environmental applications, including the removal of emerging contaminants and heavy metal ions, as well as solar-driven interfacial evaporation for desalination. Throughout, the critical interplay between gel structure/composition and performance is evaluated to establish design principles for next-generation materials. Finally, this review identifies current challenges regarding scalable synthesis, long-term stability, in-depth mechanistic understanding, and performance in complex real wastewater matrices. This work aims to provide valuable insights and guidance for advancing g-C₃N₄-based hydrogel and aerogel technologies in environmental applications.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470228/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148677","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}

{"title":"Silver Ion Chelated Melamine-Cellulose Nanocomposite Aerogel with Highly Efficient Absorption of Oils and Organic Solvents.","authors":"Hongbo Gu, Xiwei Tan, Tao Yu, Yingqian Huang, Juan Zhang, Qixiang Zhang, Xiqiu Zhao","doi":"10.3390/gels11090683","DOIUrl":"10.3390/gels11090683","url":null,"abstract":"<p><p>As the world develops technologically and economically, the issue of environmental pollution has garnered increasing attention. Cellulose, the most abundant natural polymer on Earth, offers a promising solution. Cellulose-based aerogels are cost-effective, environmentally friendly, and effective at absorbing oil and organic pollutants. However, their absorption capacity is still limited. It requires the new method to modify the structure of cellulose aerogel and address this problem. In this work, by chelating silver ions with melamine and cellulose nanofibers through freeze-drying, the melamine-cellulose nanocomposite (Ag⁺-MNC) aerogels are prepared, which are tested for their ability to absorb various oils and organic solvents. The effects of nanocellulose and Ag⁺ concentrations on the absorption performance of nanocomposite aerogel are evaluated. The results show that the Ag⁺-MNC aerogels possess the very high absorption capacities with the values of 157.58 ± 3.38, 199.47 ± 5.65, 120.96 ± 7.04, 239.40 ± 7.41, 142.83 ± 5.30, 103.30 ± 4.73, 124.03 ± 4.05, and 118.95 ± 6.53 g/g for acetone, ethyl acetate, cyclohexane, dichloromethane, ethanol, kerosene, pump oil, and waste pump oil, respectively, which are 419%, 584%, 248%, 175%, 505%, 180%, 293%, and 268% higher than pure nanocellulose aerogels. Our Ag⁺-MNC aerogel has potential application in the absorption of oils and organic solvents.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12469491/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145148658","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}