FOOD RESEARCH INTERNATIONAL
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2025
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IF 8
Yun Li,Jinhui Wang,Mingyu Zhao,Cailin Kong,Jianhui Xiao,Jin Tu,Liya Niu
The co-fermentation effect of adding taro-based yogurt strengthened the gluten network of frozen part-baked bread (FPBB). The underlying mechanisms were systematically investigated in terms of strain screening, dough stability, gluten structure and starch retrogradation behavior. Among the five lactic acid bacteria evaluated, taro-based yogurt fermented by Lactobacillus bulgaricus (LBF) was identified as the optimal improver, because it could provide higher fermentation intensity, acidification effect and water-holding capacity for the dough. LBF addition promoted the transformation of α-helix and β-sheet structures into β-turns, which softened the dough, increasing its extensibility and gas retention capacity, particularly at 10% LBF supplementation. The strong gluten network provided FPBB with excellent freezing performance, as confirmed by changes in microstructure, protein secondary structure, and starch short-range order after freezing for 28 days. LBF significantly reduced the enthalpy ( ΔH ) by 20.94% ∼ 26.99%. The water migration rate decreased from 11.84 to 6.58 days, and the crystallization rate was only 0.06 days.
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ACS Applied Electronic Materials
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2025
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IF 4.7
Erwei Shang,Zilong Zhao,Shuai Peng,Nana Zhang,Daming Fan,Yu Liu
A trade-off exists between flexible capacitive pressure sensors’ sensitivity and detection range. Existing strategies to improve the sensitivity of flexible capacitive pressure sensors by increasing microstructures and using composite materials to enhance dielectric properties are usually only effective in the low-pressure range. Limited material compressibility and dielectric properties are key factors limiting device performance. This paper proposes a composite dielectric layer based on the flexible linkage architecture (FLA), which is designed and directly manufactured using direct ink writing (DIW) 3D printing technology. Adding conductive carbon black (CB) particles increases the composite material’s relative dielectric constant. It works synergistically with the FLA dielectric layer to improve sensor’s sensing performance. With systematical optimization, the sensor exhibits high sensitivity over a wide pressure range, from 2.557 kPa–1 within 0–2 to 0.034 kPa–1 within 200–450 kPa. As a demonstration, sensors are utilized to monitor the movement of the robotic hand.
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Nature Communications
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2025
·Vol. 16
·期 1
·10894
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IF 15.7
Wang Shiyu,Zhou Ying,Zhao Wenchang,Li Yanhong,Tang Shuxian,Si Ting,Zhu Pingan
Directional droplet motion on solid surfaces, governed by Gibbs’ theory of minimizing surface free energy, traditionally relies on static surface gradients. However, such approaches face intrinsic constraints, including fixed transport directions and interdependence between transport distance and speed. Here, we introduce shape-evolving microfiber rails (SEMRs) that enable spontaneous droplet transport on initially non-gradient surfaces. Inspired by a domino-like mechanism, the SEMRs dynamically generate cascading gradients through shape deformations in response to droplet-surface interactions, diverging from conventional static-gradient designs. This adaptive strategy allows for steerable droplet motion, independent control over transport distance and velocity, and design flexibility for on-demand performance optimization. The SEMR’s versatility heralds advanced applications across analytical chemistry, cargo transport, electronics, and diagnostics, paving the way for advanced intelligent fluidic systems.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Mengyin Tan,Chuan Shi,Chen Cui,Enhui Ma,Qi Liu,Ke Dong,Hong Wang
For oil-in-water emulsion wastewaters, the primary challenge in treatment lies in demulsification due to the presence of numerous small oil droplets stabilized by emulsifiers. Toward effective demulsification, this study utilizes the naturally abundant sunflower pollen with a spiny structure and low-cost MnO 2 catalyst to construct a self-driven micromotor for rapid oil-water separation. The hollow structure of treated pollen with an opening formed during carbonization is ideal for the formation and ejection of bubbles, as evidenced by the bubble generation process inside the cavity and the bubble-propelled motion in H 2 O 2 . Surface modification with APTES and oleic acid endows the pollen-based micromotors with hydrophobic properties, enabling them to interact with the oil droplets. Leveraging self-propelled motion and micro/nanobubble production, the pollen-based micromotors can serve as active demulsifiers to bring oil droplets out from the aqueous phase and form a continuous oil layer. Influence factors including pH, temperature, and micromotor dosage are optimized, and a demulsification efficiency of over 97 % is achieved within 30 min. The proposed bio-derived micromotors offer a new platform for efficient demulsification of emulsified wastewater.
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SURFACE & COATINGS TECHNOLOGY
·
2025
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IF 6.1
Jie Qin,Zhihan Zhang,Wenhui Yao,Liang Wu,Long Li,Ke Wang,Yuan Yuan,Zhihui Xie,Yuansheng Yang,Viswanathan S. Saji,Fusheng Pan
Conventional Mg Al layered double hydroxide (LDH) monolayers offer insufficient space to accommodate the lubricants required for slippery liquid-infused porous surfaces (SLIPSs). Therefore, Mg-MOF-74 was deposited onto the as-prepared Mg Al LDH, to construct an LDH/MOF composite-layered structure, which increased the storage capacity of lubricants and imparted AZ31 Mg alloy with enhanced anti-corrosion and self-healing performance. Notably, the as-synthesized Mg-MOF-74 featured abundant open metal sites, facilitating the loading of 8-hydroxyquinoline (8-HQ) corrosion inhibitor. Specifically, 8-HQ could be loaded both in the interlayers of Mg Al LDH and open Mg sites of Mg-MOF-74. Due to the effective incorporation of 8-HQ and better insulation of a thicker lubricant layer, the LDH/MOF composite-layered SLIPS exhibited the best corrosion resistance with a corrosion current density of 5.13 × 10 −10 A·cm −2 . Furthermore, its self-healing performance was assessed by scanning vibration electrode technique and subsequent electrochemical measurements. Results indicated that the artificial scratch on the composite coating was fully repaired after 24 h of immersion in 3.5 wt% NaCl, with its impedance modulus (1.75 × 10 8 Ω·cm 2 ) restored to the same order of magnitude as that of the non-scratched specimen. This was primarily attributed to the physical self-healing of lubricants and chemical self-healing via the “gradual release & layer-by-layer deposition” of Mg 2+ and 8-HQ. Thus, the as-fabricated composite SLIPS coating demonstrates significant industrial application potential.
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Petroleum Science
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2025
·
IF 6.1
Yu Wu,Yan-Cheng Zheng,Jian Mu,Fu-Chang You,Zheng-Yu Li
In response to the overlooked influence of precursor molecular structure on interfacial performance in the application of amphiphilic carbon dots (CDs) for enhanced oil recovery (EOR), this study synthesized nitrogen-doped CDs (NCDs, FG and TA series) using biomass-derived precursors via carbonization, amidation, quaternization, and alkylation. The relationships between precursor structure, surface functionality, interfacial behavior, and oil displacement performance were systematically investigated. TA-derived NCDs exhibited higher surface polarity and amphiphilicity due to abundant carboxyl groups, while increasing alkyl chain length enhanced hydrophobicity and suppressed surface defects. TA-NCDs-L16 showed the best interfacial properties, with a critical micelle concentration (CMC) of 0.104 g/L, γ CMC of 24.71 mN/m, and zeta potential of +67.80 mV. Under NaCl concentrations ranging from 0 to 12 wt%, the oil–water interfacial tension decreased to a minimum of 0.00151 mN/m, and the contact angle dropped to 16.3°, indicating excellent salt tolerance and wettability reversal capability. In low-permeability core flooding tests, TA-NCDs-L16 achieved a significantly enhanced final oil recovery of 60.42%, with a 27.26% increase in recovery and a 38.71% reduction in injection pressure. The improved EOR performance was attributed to ultra-low interfacial tension, the formation of high-density polar adsorption layers, and nanoscale size effects that enabled efficient pore-throat penetration and fluid redistribution, thereby facilitating the detachment and mobilization of residual oil. In high-salinity formation water containing Ca 2+ /Mg 2+ and under elevated temperatures (50–90 °C), further evaluation confirmed that the amphiphilic NCDs maintained strong interfacial activity and sustained wettability reversal. TA-NCDs-L16 retained an ultra-low interfacial tension (∼0.002 mN/m) and stable wettability regulation even after 240 h of thermal aging at 80 °C, while core flooding still exhibited significant reductions in injection pressure and enhancements in oil recovery. This study clarifies the correlation among precursor structure, functional group configuration, interfacial behavior, and oil displacement efficiency, providing theoretical guidance and material design concepts for the development of carbon-based amphiphilic nanofluids in low-permeability reservoir applications.
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PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Yuan Jing,Fandi Meng,Fuhui Wang,Li Liu
Slippery liquid-infused porous surface (SLIPS) has garnered significant attention in marine anticorrosion and antifouling applications due to their slippery attributes. Nevertheless, it remains challenging to fulfill the protection requirements by relying exclusively on the barrier and anti-adhesion mechanisms of surface lubricating layer. In this work, a dual-functional slippery organogel coating was meticulously synthesized by introducing Ag(Ӏ)-imine coordination bonds into organosilicon networks, thereby endowing the coating with self-healing and antibacterial properties. A surface scratch with a width of 50 μm can be effectively repaired within 6 h at 60 °C, and the repair efficiency exceeds 85 %. In addition, the coating exhibits a dual antibacterial mechanism, which functions through both sterilization via the release of Ag + and antiadhesion due to its slippery properties. Following a 7-day cocultivation period with PAO1 bacteria, the coating retained 100 % bactericidal activity and 99.8 % resistance to bacterial adhesion. Moreover, the antialgal efficacy of the AP-TA 0.2 -Ag 1 @Oil coating against Chlorella and P. tricornutum increased by 99.9 % and 99.7 %, respectively. Furthermore, the combination of Ag(Ӏ)-imine coordination bonds and silicone oil effectively preserves the corrosion resistance of the coating. The EIS results demonstrated that the | Z | 0.01 Hz value of the slippery organogel coating was maintained at 1.07 × 10 7 Ω·cm 2 after immersion in 3.5 wt% NaCl solution for 14 days, suggesting excellent anticorrosion performance of the coating. This study provides a novel perspective for the development of marine protective coatings that possess antifouling, self-healing, and anticorrosive properties.
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FUEL
·
2025
·
IF 7.5
Hongtao Fu,Kaoping Song,Erlong Yang,Lihao Liang,Yu Zhao,Zhehui Jin
Shale oil is an unconventional energy resource, and its efficient development is a key focus of current energy research. China’s continental shale resources are abundant, with high clay content and poor physical properties. The development of shale oil reservoirs after horizontal well fracturing remains suboptimal, requiring further recovery enhancement. Surfactant imbibition oil recovery technology is recognized as one of the effective methods for enhancing oil recovery in unconventional reservoirs. This study proposes a novel experimental apparatus and method for dynamic imbibition, and also develops a three-dimensional (3D) micro pore-fracture dynamic imbibition model. Furthermore, surfactant selection criteria based on wettability and interfacial tension are established. The results show that Cetyltrimethylammonium bromide (CTAB) forms ion pairs on the surface of shale pores, rapidly removing the oil film covering the shale surface. This induces a wettability reversal, reducing the water-phase contact angle from 132° to 55.1°. The use of the CTAB surfactant solution resulted in an 11.5 percentage points improvement in final imbibition efficiency. After CTAB surfactant solution detaches oil droplets from the shale surface, more of the water phase comes into contact with the clay minerals and micro-damage structures in the shale. Hydration induces new micro-damage in the shale, which accumulate and evolve into micro-fractures, creating flow channels for shale oil transport. Another key mechanism for enhancing the dynamic imbibition efficiency of continental shale oil is to modify the shale surface wettability while strategically adjusting interfacial tension. The selection criteria for surfactants used in shale oil dynamic imbibition should require not only wettability alteration capability but also an appropriate interfacial tension ranging from 2 to 10 mN/m. This balances the promoting effect of capillary forces with the suppressing effect of the Jamin effect, thereby facilitating the movement of oil droplets within deformed pores. Significant variations in average pressure within the pores enhance micro dynamic imbibition efficiency in shale. In the practical development of shale oil reservoirs, providing effective short-cycle energy replenishment and altering the average pressure within shale pores are crucial for guiding the enhancement of recovery in continental shale oil reservoirs.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Yu Chen,Shengkai Hu,Zhengxuan Wang,Yi Zhao,Yifan Chen,Xiaofeng Qiu,Hao Yang,Haizhen Sun
Alginate hydrogels are widely studied for biomedical applications due to their biocompatibility and tunable properties, yet conventional microsphere fabrication faces challenges in structural precision, process complexity, and flexibility. This study addresses the critical challenge of precise structural control in alginate microsphere fabrication by developing an innovative one-step microfluidic strategy based on multiphase shear-induced emulsification/internal gelation. Using a phase-sequence inversion technique in a coaxial capillary device, we achieve selective generation of solid-core or capsule-type architectures. Through synergistic optimization of flow parameters, concentrations, and viscosities, we demonstrate precise regulation of microsphere diameter (500–950 μm) and morphology (aspect ratio 0.95–1.05). Systematic investigations reveal distinct volumetric shrinkage behaviors during thermal curing, with capsule-type microspheres exhibiting accelerated contraction kinetics. The integration of TiO₂/Fe₃O₄ nanoparticles into capsule structures enables complete photocatalytic degradation of methylene blue, validating environmental remediation utility. This work establishes a scalable platform for tunable hydrogel carrier fabrication, advancing microfluidic droplet engineering fundamentals for biomedicine and environmental applications.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jun Zhong,Qing Yang,Xiaodan Gou,Mengchen Xu,Qingyun Ma,Lin Kai,Haoyu Li,Mingyong Luo,Feng Chen
Blood-contacting medical devices are essential for sustaining cardiovascular patients' lives. Advanced antithrombotic materials serve as pivotal components to enhance device reliability, as non-physiological hemodynamics and materials provoke thrombus that compromises device functionality and patient safety. Liquid-infused surfaces (LIS), as a bioinert surface modification technology, have been proven effective in inhibiting thrombus formation by suppressing the adhesion of plasma components. However, the loss of lubricants under hemodynamic shear stresses imposes limitations on their clinical application. Enhancing the durability of LIS in blood-contacting environments remains a critical challenge. Natural fluid-retentive systems, such as mucus cells, utilize secretory mechanisms and microvilli structures to anchor fluids effectively. Inspired by these biological paradigms, this study engineered a microstructured lubricant-secreting antithrombotic surface (ms-LSAS) to address the sustained antithrombogenicity requirements of medical devices. The gel-based laser-induced periodic surface structures (LIPSS) fabricated via femtosecond laser and soft lithography mitigate surface lubricant displacement caused by hemodynamic shear stress through enhanced surface area and capillary forces, while continuous secretion of the gel ensures sustained lubricant replenishment. Furthermore, the surface topographic microstructures maintain platelet adhesion suppression through steric hindrance even under lubricant-depleted conditions. Synergistic effects of the lubricating layer and flexible submicron topology suppress protein adsorption and platelet adhesion, achieving robust static and dynamic antithrombogenicity. ms-LSAS can mitigate the critical challenge in blood-contacting devices: thrombus formation induced by platelet activation on material surfaces under non-physiological hemodynamics. This bioinspired strategy may thus pave the way for achieving anticoagulation equilibrium in next-generation medical implants.
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ANALYTICAL CHEMISTRY
·
2024
·
IF 6.7
Yang Xie,Zhenhua Chen,Dongyang Cai,Dezhi Huang,Enqi Huang,Xiao Yang,Ting Zhang,Hongting Wen,Yu Wang,Meng Zhao,Dayu Liu,Banglao Xu
The digital nucleic acid detection assay features the capability of absolute quantitation without the need for calibration, thereby facilitating the rapid identification of pathogens. Although several integrated digital nucleic acid detection techniques have been developed, there are still constraints in terms of automation and analysis throughput. To tackle these challenges, this study presents a digital-to-droplet microfluidic device comprising a digital microfluidics (DMF) module at the bottom and a droplet microfluidics module at the top. Following sample introduction, the extraction of nucleic acid and the dispensation of nucleic acid elution for mixing with the multiple amplification reagents are carried out in the DMF module. Subsequently, the reaction droplets are transported to the sample inlet of the droplet microfluidic module via a liquid outlet, and then droplet generation in four parallel units within the droplet microfluidics module is actuated by negative pressure generated by a syringe vacuum. The digital-to-droplet microfluidic device was employed to execute an integrated multiplex digital droplet nucleic acid detection assay (imDDNA) incorporating loop-mediated isothermal amplification (LAMP). This assay was specifically designed to enable simultaneous detection of four uropathogens, namely, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Enterococcus faecalis. The entire process of the imDDNA is completed within 75 min, with a detection range spanning 5 orders of magnitude (9.43 × 10–2.86 × 104 copies μL–1). The imDDNA was employed for the detection of batched clinical specimens, showing a consistency of 91.1% when compared with that of the conventional method. The imDDNA exhibits simplicity in operation and accuracy in quantification, thus offering potential advantages in achieving rapid pathogen detection.
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ACS Applied Polymer Materials
·
2024
·
IF 4.4
Peihang Li,Jiaqi Zhang,Hongfei Huang,Kangyuan Peng,Ziqiang Xu,Xueqin Chen,Bingbing Jiang
Membranes embedded with nanoparticles, especially with porous organic polymers (POPs) possessing high specific surface area and strong sorption of organic/inorganic pollutants, are gaining tremendous attention in saline or wastewater treatment considering the lower energy burden and the improving environmental sustainability. However, the commercial development of the materials has been obstructed by challenges of the scale-up fabrication of low-cost and high-performance membranes. Here, a POP membrane embedded with nanoporous polyurea colloids (PUCs) by using an electrospun technique is demonstrated. Large-scale production of PUCs is implemented through one-pot synthesis, which presents an ultrahigh yield of up to 20 wt %. The designed POP membrane exhibits an excellent adsorption capacity (19.8 g·g–1) of highly viscous silicone oil and displays superb potential for the removal of organic solvents, dimethyl sulfoxide (DMSO) (adsorption capacity as high as 24.6 g·g–1), from solvent streams. It shows a high rejection rate of up to 75% with an extremely high flux of 19.15 L·m–2·h–1 in the separation of the DMSO/water stream, and the rejection rate still maintains at 73% after the 5-cycle process. The fabrication strategy of the POP membrane establishes a scalable and generalized approach to obtain a low-cost nanofiltration membrane with excellent separation efficiency for a vast potential for fluid separations.
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危险品化学品经营许可证（带存储）