Biomaterials Advances
·
2024
·
IF 5.5
Junnan Wu,Chen Jiao,Hanjiao Yu,Syed Mesum Raza Naqvi,Mengxing Ge,Kunzhan Cai,Huixin Liang,Jing Liu,Jianfeng Zhao,Zongjun Tian,Dongsheng Wang,Lida Shen
In the case of a large bone defect, the human endogenous electrical field is no longer sufficient. Therefore, it is necessary to support structural electrical bone scaffolds. Barium titanate (BT) has received much attention in bone tissue engineering applications due to its biocompatibility and ability to maintain charged surfaces. However, its processability is poor and it does not have the biological activity to promote mineralization, which limits its use in bone repair. In this paper, a composite bone scaffold with excellent piezoelectric properties was prepared by combining 20 wt% calcium silicate. The influence of the light curing process on the properties of the piezoelectric biological scaffold was investigated by comparing it with the traditional piezoelectric ceramic molding method (dry pressing). Despite the structural features of 3D printing (layered structure, pore features), the piezoelectric and mechanical properties of the scaffold are weakened. However, 3D-printed scaffolds can combine structural and piezoelectric properties, which makes the 3D-printed scaffold more effective in terms of degradation and antibacterial performance. In terms of cell activity, piezoelectric properties attract proteins and nutrients into the scaffold, promoting cell growth and differentiation. Besides, it is undeniable that the pore structure of the scaffolds plays an important role in the biological properties. Finally, the 3D printed scaffolds have excellent antimicrobial properties due to the redox reaction under piezoelectric effect as well as structural characterization.
研究领域:
生物材料学
·
骨组织工程
·
医学工程
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产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 22
·62993-63004
·
IF 5.8
Wang Beibei,Wu Jiaming,Sun Xiaojie,Jiang Jun,Yang Qingchun,Li Quanliang,Ye Zhengmao,Guo Jiayu,Wang Xiaohao
This work aims to develop a modulation strategy for converting red mud (RM) into cementitious material based on elucidating the phase transformation of hydrogarnet. The results show that cementitious minerals 2CaO·SiO 2 (C 2 S), 12CaO·7Al 2 O 3 (C 12 A 7 ), and 4CaO·Al 2 O 3 ·Fe 2 O 3 (C 4 AF), as well as the free iron minerals Fe and FeO, are formed by integrating calcification dealkalization and reduction roasting treatment of RM. During the reduction roasting process, CaO is preferentially combined with SiO 2 and Al 2 O 3 to form cementitious minerals, and the Fe(III) compounds in hydrogarnet and hematite can be directly reduced to free iron minerals without intermediate ferrites. By optimizing the reduction roasting parameters and eliminating the useless minerals 2CaO·Al 2 O 3 ·SiO 2 (C 2 AS), and FeO, the reduction roasting product is mainly composed of C 2 S, C 12 A 7 , C 4 AF, and Fe. Therefore, cementitious material is obtained after the magnetic separation of Fe, which possesses both early and late hydration properties. In addition, 75% Fe in RM can be recovered, and the reduced iron powder (RIP) is also useful in the cement clinker production or steel smelting process. The findings in this work lay the foundations for understanding the phase transformation of RM-derived hydrogarnet in the reduction roasting process and also provide a new reference for the modulation and utilization of RM in the cement and concrete field.
研究领域:
建筑材料学
·
环境工程
·
矿物加工工程
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2018
·
IF 2.829
Ling Zhang,Changming Zhao,Yulian Jiang,Yue Wang,Wensheng Yang,Tiexin Cheng,Guangdong Zhou
The effect of sodium dodecyl benzene sulfonate (SDBS) on morphology and structure of calcium silicate hydrate (CSH) prepared via precipitation in solution were investigated by XRD , FT-IR and SEM techniques. The formation mechanism of spherical shell of CSH was also discussed. The results suggested that different concentrations of SDBS affect differently the structure and morphology of CSH. When the SDBS concentration was less than the critical micelle concentration (CMC), the agglomeration among CSH particles reduced, the degree of order of CSH increased and the polymerization degree of Si-O decreased. When the SDBS concentration was greater than CMC, the spherical micelles were fabricated in aqueous solution, which induced CSH to form a spherical structure in the shape of spherical micelle rather than produce a layered CSH under the normal condition. After centrifugation and vacuum drying procedures, internal micelles of CSH spherical particles disappeared and turned into spherical shell structures. This experiment provides a reliable method for the preparation of CSH with specific morphology and size, which can simplify experimental conditions and increase the possibility of its application in the field of drug delivery.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Yongkui Li,Suqin Li,Xiaodong Pan,Xin Zhao,Penghui Guo
Arsenic (As), a carcinogenic heavy metal, is a toxic environmental pollutant that threatens human and environmental health. Here, a cost-effective and high-performance Fe-based calcium silicate hydrate (Fe-CSH) was synthesized through a one-step alkaline activation process using steel slag as an in situ Ca and Fe source to treat As(V)-containing solutions. The synthesized Fe-CSH exhibited a flower-like structure with numerous interleaving nanosheets, which provided abundant adsorption sites. More importantly, this compound could remove large quantities of As(V) from wastewater, achieving maximum adsorption capacities of up to 141.5 mg/g at a pH of 5. The adsorption kinetics were consistent with a Langmuir isotherm model and followed pseudo-second-order and intra-particle diffusion kinetics. Thermodynamics analyses indicated that the adsorption process was spontaneous and feasible. XRD, FTIR, SEM, TEM, and XPS analyses indicated that the outstanding adsorption performance of the Fe-CSH could be due to the release of Ca 2+ and OH – from this material. The released Ca 2+ reacted with arsenate ions via coprecipitation, whereas OH – promoted the generation of Fe hydroxide from iron ions, which adsorb As(V) by forming stable bidentate surface complexes. Ultimately, a potential process was proposed for the remediation of As-containing wastewater using hierarchically structured Fe-CSH derived from steel slag. The “trash-to-treasure” strategy implemented for the repurposing of steel slag and the remediation of As-contaminated wastewater are both conducive to sustainable development.
研究领域:
环境科学
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材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Nanoelectronics and Optoelectronics
·
2017
·Vol. 12
·期 11
·1251-1257
·
IF 0.497
Zeng Lu,He Mou,Yang Ligang,Wang Shuping
In this paper, the fluorinated modification of calcium silicate hydrate (F-CSH), prepared by hydrothermal process, is reported. The prepared F-CSH was well characterized by nuclear magnetic resonance (NMR) and nitrogen (N2) adsorption studies. The detailed analysis revealed
that the fluorine (F) exists in the prepared material in two forms, i.e., attached to the surface of F-CSH as CaF2, and/or connected to Ca2+ in the interlayers of C–S–H. Moreover, the properties of moisture resistance and carbonation resistance are improved
in F-CSH compared to pure CSH. This research is of great significance on the application of various fluorine-doped inorganic compounds.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF POROUS MATERIALS
·
2019
·Vol. 27
·期 2
·503-513
·
IF 1.947
Zhou Chun Hui,Xia Shu Ting,Komarneni Sridhar,Kabwe Freeman Bwalya,Jin Gui Chen,Chu Mao Quan
Dolomite is an abundant, naturally occurring carbonate mineral, but the conventional processes of converting dolomite to new materials are time-consuming and energy-intensive. In addition, products from dolomite such as magnesium oxide, magnesium carbonate, magnesium hydroxide, which are used as adsorbents and additives, are mostly low value-added. Here, we demonstrated the conversion of dolomite to a mesoporous calcium-magnesium silicate (m-CMS) using a green and efficient continuous-flow synthesis method. The samples were characterized using powder X-ray diffraction, Fourier transformed infrared spectroscopy, N 2 adsorption/desorption isotherms, thermogravimetric analysis, scanning electron microscopy and transmission electron microscopy. The material possessed mesoporosity and exhibited high a specific surface area of 629 m 2 /g and a pore volume of 0.66 cm 3 /g. The maximum water absorptivity of the sample was 52.6%. After the m-CMS immersing in Tris–HCl solution for 56 days, the weight loss ratio reached 30 wt%, indicating its good potential biodegradability. Hydroxyapatite was formed on the surfaces after the m-CMS was immersed in simulated body fluids. The m-CSM provided nucleation sites, and subsequently supplied Ca 2+ for hydroxyapatite crystal growth, indicating that the material has potential bone conduction capability. This work suggests that m-CMS can be synthesized from dolomite and tetraethyl orthosilicate through a quick continuous process, and that the m-CMS could be used as a biomaterial.
研究领域:
生物医学工程
·
材料科学
·
生物材料学
·
矿物加工
·
绿色化学
✓ 已验证
DOI
高影响因子
POLYMER TESTING
·
2024
·
IF 5
Yuet Cheng,Zheng Pan,Yuntao Lin,Yuling Chen,Xiaolian Li,Hongyu Yang,Yuehong Shen
Artificial materials for the potential treatment of bone defects are very trendy in such research fields. To investigate a hydrogel scaffold with better mechanical strength and osteoinductivity is always a challenge since brittle and soft properties are always the problems in traditional hydrogels. In our study, a novel gelatin/chitosan hydrogel crosslinked by a double network filled with lignin and calcium silicate is fabricated. Enhancements of mechanical strength, low swelling ratio, and improvement in osteoinductivity were achieved in this composite double network hydrogels. The results revealed that lignin was a key factor in raising the compressive strength and stability of the hydrogel because more hydrogen bonds were formed between lignin and the crosslinking network. Even after swelling equilibrium, the compressive strength remained almost unchanged. In addition, the hydrogel groups with a higher ratio of lignin also had lower cytotoxicity and improved osteoinductivity of pre-osteoblasts while the increasing concentration of calcium silicate progressively weakened these performances. Therefore, the gelatin/chitosan double network hydrogel reinforced by lignin would be a potential bone tissue-engineered artificial material.
研究领域:
材料科学
·
生物医学工程
·
组织工程
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产品关联
DOI
高影响因子
Journal of Chemistry
·
2015
·Vol. 2015
·期 1
·131050
·
IF 0.772
Lu Zeng,Ligang Yang
Calcium silicate hydrate based on steel slag (SCSH) and Ni-doped SCSH (NSCSH) were synthesized under specific hydrothermal conditions at saturated vapor pressure and 185°C for 7 hours. The structure and morphology of SCSH and NSCSH were characterized by XRD, SEM, and N 2 adsorption/desorption. SCSH mainly consisted of amorphous calcium silicate hydrate gel (C-S-H gel) together with some flake-like tobermorite and NSCSH consisted of crystalline tobermorite and xonotlite. The addition of Ni(NO 3 ) 2 had great influence on microstructure of the composites, and SCSH possesses a mesoporous structure with slit-shaped pores, but NSCSH has narrow distributions of pore size. Furthermore, NSCSH has a higher adsorption capacity for Rhodamine B (RhB) than SCSH with removal percentages of RhB of about 52.4% and 88.2%, respectively. In addition, the effects of NSCSH dosage and pH values on the adsorption of RhB were investigated. Adsorption isotherm parameters are obtained from both Langmuir and Freundlich analysis and showed a better fit to a Langmuir model. All results indicated that NSCSH has a great potential to be a safe, easily-made, and cost-effective material for the control of RhB contamination.
研究领域:
环境科学
·
材料科学
·
化学工程
·
污染控制
·
无机非金属材料
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
·
2025
·Vol. 37
·期 7
·04025206
·
IF 3
Kaiyue Huang,Yue Li,Ji Zhang,Yanfang Wu,Hui Yang
Surface treatment is essential for enhancing the mechanical performance of Portland cement–based materials. In this study, polymerized siloxane (PS) is proposed as a novel surface treatment agent. PS was synthesized from tetramethoxysilane through hydrolysis and condensation, yielding polymerized siloxanes with a final molecular weight ranging from 200 to 2,000 g/mol, as confirmed by various characterization methods. The PS was subsequently applied and solidified on the surfaces of cured Portland cement samples. Nanoindentation tests revealed significant increases in surface hardness, with cement and mortar showing improvements from 260 to 920 MPa and 352 to 751 MPa, respectively, following the PS treatment. The improvement in modulus indicates the formation of high-density calcium silicate hydrate (HD C-S-H) on the surfaces of the cement-based materials. With the treatment of PS, the surface of cement-based materials is covered with HD C-S-H generated by the reaction of PS and Ca(OH)2, resulting in a smooth surface without pores. AFM measurements revealed a substantial decrease in the surface roughness of the cement following PS application. Surface and cross-sectional morphologies observed via SEM and EDS confirmed the penetration depth of PS, evidenced by the distribution of Si and C elements. This study introduces PS as an effective surface treatment agent for achieving high-hardness surfaces on Portland cement–based materials.
研究领域:
建筑材料学
·
材料科学与工程
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Yuansheng Lin,Zhilong Guo,Suling Dong,Yixin Li,Bohong Kan,Kongyin Zhao,Sidi Li,Zhengchun Yang
Hydrogels showed superiorities in molecularly imprinting sensors for detecting biomolecules owing to their stimulus-responsive nature. However, the excessive swelling of hydrogel during the elution process damages the imprinting cavities, leading to a reduction in sensitivity. In this study, a molecularly imprinted electrochemical sensor was designed for rapid protein recognition. The sensor utilized a composite hydrogel based on hybrid cross-linked calcium alginate/calcium silicate (CaAlg/CaSiO 3 ) to mitigate the excessive swelling of the CaAlg hydrogel. The preparation involved coating a bare carbon electrode with a sodium silicate-sodium alginate (Na 2 SiO 3 -NaAlg) mixed solution, cross-linking with CaCl 2 solution, and eluting bovine serum albumin (BSA) with Tris-HCl solution. The incorporation of CaSiO 3 nanoparticles stabilized the organic-inorganic hybrid structure, enhancing the hydrogel's resistance to swelling and maintaining cavity integrity. The molecularly imprinted polymer (MIP) sensor demonstrated high selectivity for BSA, excellent repeatability, long-term stability, and reproducibility, showing the potential for improved sensitivity in biomolecule detection.
研究领域:
生物传感技术
·
材料科学
·
分析化学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2018
·Vol. 45
·期 3
·3710-3714
·
IF 3.057
Yue Hu,Zhen Xiao,Huanping Wang,Can Ye,Yuqian Wu,Shiqing Xu
Porous CaSiO 3 ceramics were prepared via a solid-state reaction method using CaCO 3 and SiO 2 as raw materials and active carbon as a pore-forming agent. The results indicated that porous CaSiO 3 ceramics could be obtained under a low sintering temperature of 1320 °C. The addition of active carbon significantly affected the volume density, microstructure, pore size distribution and mechanical strength of porous CaSiO 3 ceramics. With the increase of active carbon content, the volume density decreased, meanwhile the pore size and porosity increased gradually. Besides, the three-point bending tests demonstrated that the mechanical strength was decreased with increasing active carbon content. However, all the porous ceramics still exhibited high mechanical strength. These results implied that the increase of active carbon content not only enlarged the pore size and enhanced the porosity, but also kept a remarkable mechanical strength of porous CaSiO 3 ceramics. Therefore, these rationally designed CaSiO 3 porous ceramics will be a highly potential material in various applications due to its high mechanical strength, low sintering temperature and narrow pore size distribution.
研究领域:
材料科学
·
生物陶瓷
·
组织工程
·
生物医学材料
·
无机非金属材料
✓ 已验证
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 101
·98554-98562
·
IF 3.289
Li Wang,Haoran Zhang,Xiaohua Zhou,Yingliang Liu,Bingfu Lei
In this work, we present a rapid, selective and highly sensitive sensor for the detection of oxygen based on ratiometric fluorescent luminescent carbon dots (CDs) grafted CaSiO3:Eu3+. Highly monodispersed porous silica microspheres are obtained with particle sizes in the range between 120 and 180 nm, providing a key precursor to prepare the CaSiO3:Eu3+ phosphor. The fluorescence of CDs grafted CaSiO3:Eu3+ could be quenched by oxygen and the red emission of Eu3+ (613 nm and 703 nm) and the blue emission of the CDs (454 nm) were effectively reduced as the concentration of oxygen increased. The CaSiO3:Eu3+ phosphor shows little effect on oxygen, while CDs grafted CaSiO3:Eu3+ shows good oxygen sensing properties, the response time is determined to be about 4–7 s and the recovery time is 18–29 s. The obtained CDs grafted CaSiO3:Eu3+ sample appears to be a promising sensing material for environmental detection applications and would also find applications in catalysis, electrodes, or related fields.
研究领域:
材料科学
·
分析化学
·
纳米技术
·
生物传感器
·
环境监测
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）