Molecular Catalysis
·
2024
·
IF 3.9
Xiaohao Liu,Zibin Xia,Rui Diao,Fenglei Qi,Ying Zhang,Peiyong Ma
The production of high value-added chemicals and materials from renewable biomass is significant for the sustainable development of chemical industry. Herein, rice husk-based biogenic silica-anchored Sn-Co catalysts with adjustable activity are successfully prepared for biomass valorization. By regulating the pretreatment method and carbothermal reduction temperature of catalysts, the interaction between Co, Sn and biogenic silica can be regulated, thereby regulating the catalytic activity of the catalyst for cellulose hydrogenolysis. 50.7 % yield of acetol and 63.4 % yield of C3 products can be obtained. A series of characterizations show that the hydrothermal pretreatment in CoCl 2 solution promotes the combination of Co 2+ and biogenic silica, which inhibits the excessive doping of Sn 4+ and promotes the formation of Co 3 Sn 2 alloy. The Sn-O-Si and Co 3 Sn 2 species in 3Sn-5Co@RHC are the key active sites catalyzing glucose isomerization and fructose retro-aldol condensation. The intermediates experiments show that controlling the hydrolysis rate of cellulose to avoid excessive concentration of monosaccharide intermediates in the reaction system is crucial for inhibiting side reactions and improving the yield of acetol. The use of agroforestry waste-based catalytic materials for biomass conversion in this work can provide inspiration for exploiting the intrinsic characteristics of biomass to develop high value-added materials and chemicals.
研究领域:
生物质化学
·
催化材料科学
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产品关联
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Rindia M. Putri,Daquan Zhang,Ilona Joan Manoela,Henty Tri Agustina,Grace Wara Patiung,Alfredo Kono,Diah Hardianti,Jun Xian Goh,Yanti Rachmayanti,Zeily Nurachman,Aijie Liu
Upon blood contact, biomaterials rapidly adsorb plasma proteins, forming a protein corona that dictates their biological identities and interactions. While diatom biosilica presents a naturally derived, nanostructured platform for biomaterial applications, its interaction with human plasma at the biomolecular level remains unknown. Here, we investigate the formation dynamics and proteomic composition of the protein corona on diatom biosilica. At the initial stages, we compared two tropical marine diatom species: Cyclotella striata TBI (centric) and Navicula salinicola NLA (pennate). Starting with human serum albumin (HSA) as a model protein and then transitioning to human plasma, we demonstrated that N. salinicola biosilica exhibited a higher capacity for protein adsorption, likely due to its elongated morphology and larger pores. Adsorption occurred immediately and followed pseudo-first-order kinetics, reaching equilibrium within ∼20 min, with HSA predominantly localizing on the biosilica outer surface, based on tomographic confocal imaging. LC-HRMS proteomic analysis revealed that plasma interactions with biosilica induced HSA depletion and selective enrichment of immunoglobulins, homeostatic proteins, and apolipoproteins in the corona. Analyses of protein parameters (i.e., pI and GRAVY values) for the enriched proteins indicate a stronger affinity of biosilica toward hydrophilic and positively charged plasma proteins. Functional annotation of the enriched proteins suggests that biosilica might play a role in immune activity modulation, complement activation, iron homeostasis, as well as the regulation of coagulation and wound healing. These findings unveiled fundamental biomolecular insights governing biosilica-protein interactions, paving the way toward the integration of diatom biosilica into biomaterial engineering, diagnostics, and therapeutic applications.
研究领域:
生物材料科学
·
蛋白质组学
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纳米医学
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产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2018
·
IF 3.141
Meng-Jiao Tang,Wei Wang,Zhi-Lu Li,Zi-Ming Liu,Zhi-Yu Guo,Hua-Yu Tian,Zhuang Liu,Xiao-Jie Ju,Rui Xie,Liang-Yin Chu
Controllable magnetic hybrid microswimmers with hollow helical structures are fabricated, by a facile strategy based on microfluidic template synthesis and biosilicification, to achieve enhanced rotation-based locomotion for cargo transport. The magnetic hybrid microswimmers are fabricated by first synthesizing Fe3O4-nanoparticles-containing helical Ca-alginate microfibers from microfluidics, followed with biosilicification and controllable dicing to engineer their rigid hollow helical structures. The microswimmers show hollow helical structures consisting of a rigid, biocompatible alginate/protamine/silica shell embedded with Fe3O4 nanoparticles. Their helical structures can be engineered into open tubular structures or closed compartmental structures by using microfibers or diced microfibers as templates for biosilicification. Powered by a simple rotating magnet, the microswimmers can achieve enhanced rotation-based locomotion and provide good mechanical strength for supporting cargo for transportation. This work provides a simple and efficient strategy for fabricating controllable magnetic hybrid microswimmers with hollow helical structures to achieve enhanced rotation-based locomotion for cargo transport, encapsulation, and delivery.
研究领域:
材料科学
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生物医学工程
·
纳米技术
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DOI
高影响因子
TRIBOLOGY INTERNATIONAL
·
2025
·
IF 6.9
Mohan Li,Shupei Liu,Xinfang Zhang,Lichao Wan,Ming Huang,Xiujie Jiang,Hui Xiong,Congshu Huang,Hong Gao,Weikang Zhao,Yuxin Zhang
Graphene has demonstrated significant potential in the fields of lubrication and wear resistance, owing to its unique structure and exceptional properties. However, the tendency of graphene sheets to agglomerate limits its broader application. Herein, we report a novel multilayer graphene sheet modified diatomite (DE) microcapsule (Graphene@DE). After further surface modification (Graphene@DE-F), the microcapsules can significantly improve tribological and mechanical properties. Tribological tests showed that uniformly dispersed Graphene@DE-F microcapsules have significant anti-friction and anti-wear performance. Specifically, the coefficient of friction (COF) decreased by 86.4 %, wear rate decreased by 64.7 %, mass loss decreased by 42.2 % and thickness loss decreased by 30.7 %. Furthermore, the tensile properties and basic mechanical properties were also improved. The elastic modulus increased by 5.3 %, tensile strength increased by 7.3 %, Young's modulus increased by 13.6 %, and hardness increased by 41.7 %.
研究领域:
材料科学
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纳米技术
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摩擦学
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产品关联
DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2017
·
IF 3.154
Jiandong Cui,Yamin Zhao,Yuxiao Feng,Tao Lin,Cheng Zhong,Zhilei Tan,Shiru Jia
Cross-linked enzyme aggregates (CLEAs) have recently emerged as a promising tool for enzyme immobilization because of their simplicity and low cost. However, a lack of good size and morphological control over the as-prepared CLEAs has limited their practical applications. For example, the prepared CLEAs exhibit amorphous large clusters that would cause significant mass-transfer limitations, which lead to a low catalytic efficiency. Here, inspired by biomineralized core–shell structures in nature, we develop a novel mesoporous spherical CLEA with a biosilica shell by using phenylalanine ammonia lyase based on CaCO3 microtemplates and biomimetic mineralization. The resultant CLEAs exhibited a spherical structure with good monodispersity instead of the amorphous clusters of conventional CLEAs and showed activity higher than that of conventional CLEAs. Moreover, the thermostability, tolerance against denaturants, and mechanical stability of the spherical CLEAs with a biosilica shell were enhanced significantly compared with those of conventional CLEAs. In particular, the spherical CLEAs with a biosilica shell retained 70% of their original activity after 13 cycles, whereas the conventional CLEAs retained only 35% of their original activity. This approach could be an efficient strategy for improving the catalytic properties of CLEAs.
研究领域:
生物化学
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材料科学
·
酶工程
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产品关联
DOI
PubMed
高影响因子
TRIBOLOGY INTERNATIONAL
·
2024
·
IF 6.1
Mohan Li,Shupei Liu,Mingmei Cao,Zheng Zhou,Jinsong Rao,Yuxin Zhang
In this study, fluorosilane-modified hollow mesoporous Diatom biosilica oil-carrying microcapsules (Oil@HMSNs/DE-F) were successfully synthesized using diatomite as hard-template, and dimethylsiloxane oil and hollow mesoporous silica as the core materials. Such microcapsules exhibited high oil-carrying capacity (41 %) and oil-carrying stability, which significantly higher than the Oil@DE-F microcapsules (33 %) (Comparison). Tribological tests showed that the Oil@HMSNs/DE-F composite coatings have excellent tribological properties and mechanical properties. Amazingly, 6 wt% Oil@HMSNs/DE-F epoxy composites coatings reduced the coefficient of friction by 79.9 % and the wear rate by 98.1 % compared to pure epoxy.
研究领域:
材料科学
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生物学
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产品关联
DOI
高影响因子
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
·
2022
·Vol. 53
·期 4
·2753-2762
·
IF 2.872
Zhao Zhuqing,Cai Muya,Zhao Haijia,Ma Qiang,Li Xianyang,Xie Hongwei,Xing Pengfei,Zhuang Yanxin,Yin Huayi
Suppressing the formation of SiC during the magnesiothermic reduction of SiO 2 –C composite is still challenging. In this paper, the formation of SiC can be tentatively controlled by tuning the reactivity of reductants that can be modulated by alloying with Si at different atomic ratios. The reduction product is SiC when using Mg as the reductant, while the C–Si composites are formed when using the reductants with relatively low reactivity ( e.g. , Mg–Si alloy, Ca–Si alloy). The obtained C–Si composites reduced from C–SiO 2 show excellent electrochemical performance, delivering a specific discharge capacity of 925 mAh g −1 at 1 A g −1 after 200 cycles and 825 mAh g −1 at 2 A g −1 after 300 cycles. In addition, when bio-silica is used as Si resource, the C–Si composites prepared from the rice husks also exhibit excellent electrochemical performance, delivering a specific discharge capacity of 687 mAh g −1 at 2 A g −1 after 300 cycles. Overall, the revealed reactivity–composition relationship can be extended to selectively prepare carbon- or carbide-based target materials as well as to harvest both C and Si from Si-containing waste biomasses.
研究领域:
材料科学
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化学工程
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电化学
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生物质废物利用
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DOI
高影响因子
危险品化学品经营许可证（带存储）