DYES AND PIGMENTS
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2025
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IF 4.2
Yue Huang,Daixuan Gong,Huanda Zheng,Jie Chen,Siqi Zhu,Laijiu Zheng
The solubility of dyes in supercritical carbon dioxide (ScCO 2 ) is a critical parameter in their processing. This study focuses on triazine-based reactive disperse dyes. Their solubility in supercritical carbon dioxide was determined using the static weighing method. The measurement pressure range was 11-23 MPa, and the temperature range was 343.15-383.15 K. The experimental data were analyzed using multiple models. These models included density-based semi-empirical models (Chrastil, MST, Bartle, K-J, and SS) and state equation models (SRK and PR). Compared to the state equation method, the semi-empirical model method does not require the acquisition of complex physical parameters of the solute and exhibits superior correlation performance. The results indicate that the K-J model provides the best prediction accuracy for experimental data, with AARD% values of 3.18, 3.60, and 3.76, respectively. These findings provide critical solubility data and thermodynamic insights for the rational selection of carbon dioxide supercritical fluid dyes, dye structure design, and operational parameters for textile dyeing processes.
研究领域:
化学工程
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染整技术
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热力学
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建模与仿真
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2023
·
IF 8.2
Mengru Yao,Guiyin Zhang,Danchun Shao,Shan Ding,Lihua Li,Hong Li,Changren Zhou,Binghong Luo,Lu Lu
Currently, hemoperfusion is clinically the most rapid and effective treatment for removing toxins from the blood. The core of hemoperfusion is the sorbent inside the hemoperfusion device. Due to the complex composition of the blood, adsorbents tend to adsorb substances such as proteins in the blood (non-specific adsorption) while adsorbing toxins. Hyperbilirubinemia is caused by excessive levels of bilirubin in the human blood, causing irreversible damage to the patient's brain and nervous system, and even leading to death. High adsorption and high biocompatibility adsorbents with specific bilirubin adsorption are urgently needed to treat hyperbilirubinemia. Herein, poly(L-arginine) (PLA) which can specifically adsorb bilirubin, was introduced into chitin/MXene (Ch/MX) composite aerogel spheres. Ch/MX/PLA prepared by supercritical CO 2 technology had higher mechanical properties than Ch/MX and can withstand 50,000 times its own weight. The in vitro simulated hemoperfusion test showed that the adsorption capacity of Ch/MX/PLA was as high as 596.31 mg/g, which was 15.38 % higher than that of Ch/MX. Binary and ternary competitive adsorption tests showed that Ch/MX/PLA also had good adsorption capacity in the presence of a variety of interfering molecules. In addition, hemolysis rate testing and CCK-8 testing confirmed that Ch/MX/PLA had better biocompatibility and hemocompatibility. Ch/MX/PLA can meet the required properties of clinical hemoperfusion sorbents and has the ability to produce mass production. It has good application potential in the clinical treatment of hyperbilirubinemia.
研究领域:
材料科学
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生物医学工程
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化学工程
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生物技术
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产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
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IF 20.2
Mingjie Cheng,Bo Gao,Xiaoli Zheng,Wenzhuo Wu,Weiqian Kong,Pengfei Yan,Zubin Wang,Bin An,Yunpeng Zhang,Qingchao Li,Qun Xu
Exploring a facile, rapid and efficient route to produce metal-organic frameworks (MOFs) with highly accessible active sites is of great importance for catalysis. Here we demonstrate the CO 2 coordination can drive low temperature rapid synthesis of porphyrin-based bismuth-MOFs (Bi-PMOFs) by utilizing synergistic physical and chemical properties of supercritical CO 2 (SC-Bi-PMOFs). The molecular-level role of scCO 2 in the synthesis of SC-Bi-PMOFs have been investigated through a series of characterizations including in-situ time-dependent infrared spectroscopy, wherein chemical coordination of CO 2 promotes to fabricate 2D SC-Bi-PMOFs nanosheets. Moreover, the formation of Cu-PMOFs and Fe-PMOFs proves the universal scCO 2 strategy for synthesizing PMOFs. Density functional theory (DFT) calculations together with experiments results confirm the SC-Bi-PMOFs with abundant active sites guarantee efficient ligand-to-metal charge transfer and reduction efficiency of CO 2 . The high-efficiency utilization of CO 2 for synthesizing a series of MOFs and subsequent catalysis on photocatalytic CO 2 reduction for valuable chemicals realize the carbon recycle.
研究领域:
材料科学
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环境科学
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化学
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催化
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
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IF 5.155
Hongyu Cen,Jiaojiao Cao,Zhenyu Chen,Xingpeng Guo
The corrosion inhibition performance of 2-mercaptobenzothiazole (MBTH) for carbon steel in a CO 2 -H 2 O system was investigated by weight loss, surface analysis, electrochemical measurements, and quantum chemical calculations. Results showed that MBTH could effectively protect carbon steel from CO 2 corrosion and inhibition efficiency of MBTH in supercritical CO 2 was higher than that in non-supercritical CO 2 situation. The differential capacitance curves revealed that excess positive charges would be on the surface of carbon steel in the supercritical-CO 2 system while negative charges accumulated on carbon steel surface in non-supercritical CO 2 condition. The adsorption model was proposed to explain the inhibition mechanism of MBTH.
研究领域:
腐蚀科学
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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
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2025
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IF 8.9
Huan Qian,Zheng Gong,Xiulu Gao,Yichong Chen,Ling Zhao,Dongdong Hu
With the rapid development of artificial intelligence technology, intelligent sensing and monitoring is evolving from single-modality sensor data acquisition to multimodal and adaptive perception, a development that aligns with the strategies of green environmental protection and sustainable development. Machine learning-based multimodal intelligent monitoring employ smart sensors to collect diverse sensory data. The smart sensor is a biodegradable, reusable and multi-responsive shape memory PBAT/PCL foam prepared by one-step supercritical CO 2 foaming and sinter molding. The foam exhibits multi-responsive actuation under thermal, near-infrared light, and microwave stimuli. Functionally, this foam can serve as a self-sensing actuator capable of lifting up to 40 times its own weight upon external stimulation. Furthermore, it operates as a contact-separation nanogenerator with shape memory-controlled alternating current output, generating a maximum voltage of 1.3 V. As a piezoresistive sensor, the foam demonstrates a gauge factor of 25.54 and a response time of 175 ms, and stability over1,000 cycles, confirming its practicality and reproducibility. Notably, the shape memory effect enables tunable sensor sensitivity. Integration of shape memory sensor and machine learning-based multimodal intelligent recognition enables to predict with 100 % accuracy. This technology demonstrates broad application prospects in industrial equipment health management, human–machine interaction, smart healthcare, and environmental monitoring, providing innovative solutions for more precise and adaptive real-time monitoring and early warning systems.
研究领域:
材料科学
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智能传感器
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执行器
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机器学习
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柔性电子
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环境监测
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人机交互
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智能医疗
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可持续技术
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纳米发电机
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产品关联
DOI
高影响因子
POLYMER
·
2025
·
IF 4.5
Bo Wen,Gaopeng Wang,Renze Xu,Chenglong Weng,Jintao Yang
With the growing global emphasis on environmental protection, supercritical CO 2 foaming technology for biodegradable materials such as polylactic acid (PLA), poly(butylene adipate-co-terephthalate) (PBAT), poly (butylene succinate) (PBS) and their blends has emerged as a research and application hotspot. However, the low melt strength and poor compatibility of these polymers often lead to low nucleation efficiency, cell wall rupture and coalescence, exhibiting inferior foaming performance. In this work, aiming to enhance the foamability of PLA and PLA/PBAT blends, a fluorinated chain extender, F-CE (GMA-co-DFHA-co-MMA), was designed and synthesized. Through the reactive melt blending, F-CE effectively enhanced the melt strength of PLA and interfacial adhesion between PLA and PBAT, leading to a significant improvement in foaming performance. Additionally, the fluorine groups in DFHA demonstrated high affinity for CO 2 , providing additional heterogeneous nucleation sites for bubble formation, thereby increasing both foam expansion ratio and cell density. Notably, the F-CE/PLA foam exhibited a cell diameter of ∼13.8 μm with an exceptionally high expansion ratio of ∼35. As a contrast, pristine PLA foam shows an expansion ratio of ∼30, but with large cell diameter (∼118 μm). Although PLA foam containing CE without fluorine (CE/PLA foam) exhibits small cells with an average cell diameter of ∼13.6 μm, the expansion ratio is low (∼23). In addition, F-CE also exhibits superior performance in improving the foamability of PLA/PBAT blends. This work presents a chain extender specifically engineered for foaming applications, which functions as a highly efficient foaming additive to holistically enhance the foaming performance of polymers.
研究领域:
高分子科学
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材料工程
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绿色化学
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发泡技术
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超临界流体加工
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产品关联
DOI
高影响因子
Biomaterials Science
·
2023
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IF 6.6
Ruijia Han,Yajun Min,Guanlin Li,Shilu Chen,Maobin Xie,Zheng Zhao
Concurrent treatment of tumor recurrence and bone defects after surgical resection of osteosarcoma remains a clinical challenge. Combination therapy based on local drug delivery systems shows great promise in the treatment of osteosarcoma. In this study, curcumin modified polydopamine nanoparticle loaded silk fibroin doped with nano-hydroxyapatite (CM-PDA/SF/nHA) nanofibrous scaffolds were developed to induce bone defect regeneration and chemo-photothermal synergistic effects against osteosarcoma. These scaffolds exhibited good photothermal conversion efficiency and photostability. Moreover, the results of ALP staining and alizarin red S (ARS) staining indicated that the CM-PDA/SF/1%nHA scaffolds had the most obvious promotion effect on early osteogenic differentiation. The results of in vitro and in vivo anti-osteosarcoma activity showed that the CM-PDA/SF/1%nHA scaffolds exhibited higher anti-osteosarcoma activity compared to the control and SF scaffolds. In addition, the CM-PDA/SF/1%nHA scaffolds could promote the proliferation and differentiation of bone marrow mesenchymal stem cells in vitro and new bone production in vivo. Thus, these results suggested that the CM-PDA/SF/1%nHA scaffolds could improve bone defect regeneration and achieve chemo-photothermal synergistic effects against osteosarcoma.
研究领域:
生物医学工程
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组织工程
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癌症治疗
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材料科学
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纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Chemistry-An Asian Journal
·
2022
·Vol. 17
·期 16
·e202200396
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IF 4.839
Minting Liu,Ying Chen,Qiang Zhu,Junjun Tao,Changming Tang,Huajun Ruan,Yunlong Wu,Xian Jun Loh
Graphical A multifunctional pearl polypeptide thermal gel system with active regulation of wound healing was prepared by the interaction between the components of pearl polypeptide and a hydrophobic block polymer. The temperature-sensitive hydrogel can improve the solubility of pearl peptides with wound healing activity, control the slow-release effect of pearl peptides, and greatly enhance the wound healing activity. In addition, both pearl peptides and thermal gels have antioxidant activity and help to scavenge abnormally generated free radical molecules. Burns are the most common and devastating form of wounds and are usually accompanied by abnormal inflammation, inadequate extracellular matrix production, reduced angiogenesis, and lack of growth factor stimulation, which can significantly delay wound healing and lead to complications. Pearl powder, a traditional Chinese medicine, has been used to treat wound healing. In the present study, we found that supercritical CO 2 extracted pearl peptides in the size range of “>10kd” have great potential to promote wound healing at the cellular level. Antioxidant hydrogels were designed using selenium-containing block-functionalized PEG/PPG polymers. Pearl peptide components were combined into polymeric materials to develop new promising wound dressings. It was shown that pearl peptide hydrogels increased skin fibroblast viability, enhanced cellular resistance to oxidative stress, enhanced tissue remodeling, promoted angiogenesis, and exhibited enhanced promotion in wound healing.
研究领域:
药学
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材料科学
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生物医学工程
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伤口愈合
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组织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）