INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Liping Mei,Jiao Wei,Ruirui Yang,Wei Guo,Yuexin Liu,Fei Ke,Chuanyi Peng,Ruyan Hou,Guijie Chen,Junsheng Liu,Daxiang Li,Xiaochun Wan,Huimei Cai
To mitigate the risk associated with water-soluble fluoride in tea and to have less influence on the contents of tea infusion, a highly selective lanthanum modified silk fibroin (SF) and polyvinyl alcohol (PVA) composite film (SF/PVA-La) was prepared to remove fluoride from brick tea infusion. Notably, SF/PVA-La could remove about 48 % of the fluoride from in brick tea infusion within 30 min. Importantly, the reduction in total tea polyphenols in brick tea did not exceed 10 %, and the reduction in caffeine was only 0.4 %. In addition, the Langmuir model revealed a maximum fluoride adsorption capacity of 9.15 mg/g for SF/PVA-La in brick tea infusion. Both FTIR and XPS analyses confirmed that SF/PVA-La engages in electrostatic adsorption of fluoride ions, with ion exchange occurring between the hydroxyl groups on its surface and the fluoride ions. These findings underscore the potential of SF/PVA-La as an effective material for selective fluoride removal from brick tea infusions.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2020
·
IF 2.87
Dinghao Wu,Chao Ye,Yawen Liu,Jing Ren,Yuan Yao,Shengjie Ling
Light, strong, and ductile materials (LSDMs) are desired in many emerging fields, such as biomedicine, aerospace industries, and structural engineering materials. However, producing such materials remains a significant challenge because their structures cannot confer the desired mechanical properties. In this study, we developed a silk fiber “welding” strategy to construct bioinspired LSDMs. The key to the welding process is to etch the surface of silk fiber through a partial dissolution process. The dissolved silk proteins further serve as welding materials or glues to bond the silk fibers together. Remarkably, these silk-LSDMs are not only lightweight (with the densities of around 0.28 g cm–3) but also strong and tough. Their compression strength reaches up to 13.8 ± 3.4 MPa, which is higher than those of most natural and engineered porous materials. These favorable structural and mechanical characteristics, together with outstanding biocompatibility of silk proteins, render these silk-LSDMs applicable in regenerated engineered tissues and water treatment materials.
研究领域:
材料科学
·
生物医学工程
·
结构工程
✓ 已验证
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2023
·Vol. 34
·期 5
·1716-1722
·
IF 3.4
Bo Xiang,Peng Xu,Yongsheng Chang,Yifan Zhang,Yali Wu,Wenhuan Zhong,Wen Lei,Rong Zhang
Biodegradable radiative cooling materials can achieve both zero-energy cooling and environmental friendliness. Natural silk cocoon exhibits both high solar reflectivity and mid-infrared emissivity owing to its unique structure and composition, while it possesses excellent biodegradability. Herein, we restructure the natural silk by electrospinning to obtain scalable and biodegradable silk fibroin (SF) fiber membranes with enhanced optical properties. Specially, nano-sized fibers exhibit better optical properties than micrometer-sized ones. The fabricated SF nanofiber membrane can achieve ultra-high average solar reflectance and infrared emittance of 96% and ~97%, respectively. Such outstanding optical properties enables the fiber membrane to yield an average sub-ambient cooling temperature of ~6°C in the outdoor environment even under a peak solar intensity of ~800 W m −2 . Overall, the resulted SF fiber membranes promise a wide range of applications such as building energy efficiency, cold-chain transportation, in-vehicle temperature control, outdoor precision instrument protection and outdoor personal thermal management.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Jie Chen,Haoyang Xu,Chenjing Zhang,Rongliang Wu,Suna Fan,Yaopeng Zhang
Biomaterial-based origami functional films are fundamental to the development of implantable flexible electronics and wearable devices. However, the challenge of simultaneously achieving excellent strength, flexibility and functionality is yet to be fully explored. Inspired by the Fick’s law, we fabricate an origami pristine silk fibroin (SF) film via a straightforward yet robust strategy, using water and formic acid as the structural regulator. Benefiting from the asymmetric diffusion and the effect on the inter/intra-molecular hydrogen bonds of water, our strategy endows the SF film with gradient condensed structure from surface to interior, which has been both experimentally and theoretically confirmed. Owing to this unique structure with higher surficial crystallinity than interior, the SF films exhibit an excellent integration of strength, flexibility, and moisture-response functionality. The films are successfully origami-folded into a paper crane/boat without any damage, and can realize dynamic jump and moisture management functions. This work highlights a versatile path for exploiting biomaterial-based films combined with enhanced flexibility, strength, and additional functionalities.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2015
·
IF 3.368
Zhisong Lu,Jing Xiao,Ying Wang,Mei Meng
Fabrication of silver nanoparticles (AgNPs)-modified silk for antibacterial application is one of the hottest topics in the textile material research. However, the utilization of a polymer as both 3-dimensional matrix and reductant for the in - situ synthesis of AgNPs on silk fibers has not been realized. In this work, a facile, efficient and green approach was developed to in - situ grow AgNPs on the polydopamine (PDA)-functionalized silk. AgNPs with the size of 30–90 nm were uniformly deposited on the silk fiber surface with the PDA coating layer as a reduction reagent. The AgNPs exhibit excellent face-centered cubic crystalline structures. The bacterial growth curve and inhibition zone assays clearly demonstrate the antibacterial properties of the functionalized silk. Both high Ag + release level and long-time release profile were observed for the as-prepared AgNPs–PDA-coated silk, indicating the high-density loading of AgNPs and the possible long-term antibacterial effects . This work may provide a new method for the preparation of AgNPs-functionalized silk with antibacterial activity for the clothing and textile industry.
研究领域:
材料科学
·
生物医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Fiber Materials
·
2025
·
IF 21.3
Li Xiaoyan,Guo Zhiguang,Ji Yating,Du Peibo,Wang Jun,Xu Bi,Ge Fengyan,Zhao Yaping,Cai Zaisheng
Passive radiative thermal management holds substantial potential for enhancing energy efficiency and sustainability. However, few research efforts have addressed the integration of mechanical robustness and durability with the distribution and composition of photonic structures within materials. Silk fibers, known for their distinctive hierarchical morphological structure, offer a solution to these challenges by providing exceptional optical and mechanical properties. Inspired by this, we developed a silk-like tough metafiber (PMABF) that incorporated multiple scatterers through a multi-scale structural construction of nanofiber aggregates and molecular interface engineering. We show that fabrics woven with PMABF can provide high mid-infrared (MIR) emissivity (98.6%) within the atmospheric window and 86.7% reflectivity in the solar spectrum, attributed to its ellipsoidal photonic structure featuring by surface micro-/nano-particles and numerous internal voids. Through mature and scalable industrial manufacturing routes, our metafibers show excellent mechanical strength, hydrophobicity and thermal stability while maintaining effective passive radiative cooling. Practical application tests demonstrated that molecules introduced during the heterogeneous composite process significantly enhanced the metafiber’s tensile strength (125%) and compressive stress (261.5%) by forming junction welds among the nanofiber backbones to efficiently distribute the external forces. Furthermore, the superior thermal stability and flexibility of PMABF open abundant opportunities for diverse applications with demanding thermal management requirements, such as thermal protection and multi-scenario thermal camouflage. Graphical
研究领域:
材料科学
·
光学工程
·
生物仿生学
✓ 已验证
产品关联
DOI
高影响因子
Nano Today
·
2023
·
IF 17.4
Jinling Zhu,Hailiang Yang,Leitao Cao,Chenchen Dai,Jing Ren,Junrui Liang,Shengjie Ling
Direct functionalization of structural materials can provide an elegant balance between their structure, performance, and function. However, effective direct functionalization techniques are very limited. This work reports a technique to functionalize structural materials in a non-destructive manner, wherein the surface of the materials is selectively etched without compromising their internal structure. In this technique, an ultrathin and transparent silk fibroin ionotronic nanofiber skin (SFINS) is spun on the surface of structural materials through electro-blown spinning, endowing them with electric conductivity and environmental responsiveness. This process is characterized by outstanding scalability, low cost, and high efficiency. In addition, the SFINS can be firmly bonded to the surface of different structural materials, such as glass, metals, polymers, and wood. More importantly, the electro-blown spinning process and the formed SFINS do not alter the structure, properties, and sustainability of the substrate materials . For instance, the transparency of glass and acrylic plates , the texture of wood, the color of plastics, the text of papers, the elasticity of elastomers , as well as their strength are all retained. Consequently, structural materials functionalized under the proposed process can be directly integrated into functional devices that require both structural stability and functional diversity in practice use. In this work, two prototypes are developed to demonstrate the applications of SFINS-functionalized structural materials as tactile receptors for an intelligent sorting manipulator and as a self-powered IntelliSensor for geological hazard early warning. Both examples reveal the advantages of the proposed technique in terms of the balance between the structure, performance, and function of the developed device systems.
研究领域:
材料科学
·
生物工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）