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Qi J, Wang X, Zhang H, Liu X, Wang W, He Q, Guo F. Biopolymer Meets Nanoclay: Rational Fabrication of Superb Adsorption Beads from Green Precursors for Efficient Capture of Pb(II) and Dyes. Nanomaterials (Basel) 2024; 14:766. [PMID: 38727360 PMCID: PMC11085593 DOI: 10.3390/nano14090766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 04/18/2024] [Accepted: 04/24/2024] [Indexed: 05/12/2024]
Abstract
Renewable, green, and safe natural biopolymer-derived materials are highly desired for the purification of pollutants, but significantly improving their performance without the introduction of additional harmful chemicals remains a huge challenge. Based on the concept of "structure optimization design", environment-friendly composite beads (named SA/PASP/RE) with excellent adsorption performance and recyclability were rationally constructed through a green ionic crosslinking route, using the completely green biopolymer sodium alginate (SA), sodium salt of polyaspartic acid (PASP), and the natural nanoclay rectorite (RE) as starting materials. The nano-layered RE was embedded in the polymer matrix to prevent the polymer chain from becoming over-entangled so that more adsorption sites inside the polymer network were exposed, which effectively improved the mass transfer efficiency of the adsorbent and the removal rate of contaminants. The composite beads embedded with 0.6% RE showed high adsorption capacities of 211.78, 197.13, and 195.69 mg/g for Pb(II) and 643.00, 577.80, and 567.10 mg/g for methylene blue (MB) in Yellow River water, Yangtze River water, and tap water, respectively. And the beads embedded with 43% RE could efficiently adsorb Pb(II) and MB with high capacities of 187.78 mg/g and 586.46 mg/g, respectively. This study provides a new route to design and develop a green, cost-effective, and efficient adsorbent for the decontamination of wastewater.
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Affiliation(s)
| | | | | | | | | | | | - Fang Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China; (J.Q.); (X.W.); (H.Z.); (X.L.); (W.W.); (Q.H.)
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Li X, Wang T, Zhang Y, Tadege M, Wang H. The STF/WOX1 MD is required for physical interaction with MtWOX9 and leaf blade outgrowth in Medicago truncatula. Physiol Plant 2024; 176:e14212. [PMID: 38353133 DOI: 10.1111/ppl.14212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/24/2024] [Accepted: 02/04/2024] [Indexed: 02/16/2024]
Abstract
Plant-specific WUSCHEL-related homeobox (WOX) family transcription factors play critical roles in maintaining meristems and lateral organ development. The WUS clade member STF/LAM1 physically interacts with the intermediate clade member WOX9. This interaction contributes to their antagonistical functions on leaf blade outgrowth by competing for the same cis-elements in the promoter of their common target in M. truncatula and N. sylvestris. Here, we identified the main interaction domains of STF and MtWOX9 in Medicago, shedding light on the mechanism of WOX gene function. The middle domain of STF and MtWOX9 are both critical for the interaction, while the conserved motif of STF in the C-terminal domain is also required. Deletion of the middle domain of STF partially rescued the leaf blade phenotypes of the stf null mutant, indicating that the middle domain plays an essential role during leaf blade expansion. This finding provides a new insight that the versatility of WOX function is not only caused by the conserved DNA binding and repression domains but also by the middle domain that recruits different partners.
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Affiliation(s)
- Xue Li
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Tingting Wang
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Yunwei Zhang
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
| | - Million Tadege
- Department of Plant and Soil Sciences, Institute for Agricultural Biosciences, Oklahoma State University, Ardmore, Oklahoma, USA
| | - Hui Wang
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
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Jia T, Wu X, Qu G. Molecular Simulation of Thermodynamic Properties of CH 4/CO 2 Adsorption by Coal Molecules at Different Temperatures and Moisture Contents under Variable Pressure Conditions. ACS Omega 2023; 8:48381-48393. [PMID: 38144121 PMCID: PMC10734016 DOI: 10.1021/acsomega.3c07872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/24/2023] [Accepted: 11/28/2023] [Indexed: 12/26/2023]
Abstract
In order to further elucidate the thermodynamic mechanism of CH4/CO2 adsorption by coal molecules, the adsorption behavior of a molecular model of coal (C206H128O36N2) at Wucaiwan, Zhundong was investigated by applying Materials Studio 2020 and Monte Carlo (GCMC) simulation methods, and the adsorption behavior of CH4 and CO2 was studied from the thermodynamic point of view under the conditions of different temperatures, pressures, and moisture contents. The results showed that at different temperatures or moisture contents, CH4 molecules had a low-density scattering distribution and CO2 molecules had a high-density polymerization distribution. Temperature and moisture content and adsorption constants a and b were negatively correlated. Under the same conditions, the relationship between single- and binary-component adsorption amounts was CO2 > CH4 and the relationship between heat of adsorption was CO2 > CH4. When adsorption potential energy or entropy of adsorption was the same, the adsorption capacity was CO2 > CH4. Temperatures and moisture contents were negatively correlated with the total adsorption capacity of CH4/CO2; pressure was positively correlated with the total adsorption capacity of CH4/CO2. The effect of temperature on the equivalent heat of adsorption was greater than that of pressure at different temperatures, and the entropy of adsorption was positively correlated between temperature and CH4/CO2, while the amount of adsorption was negatively correlated with the entropy of adsorption. The effect of moisture content on the equivalent heat of adsorption was greater than that of pressure at different moisture contents, and the entropy of adsorption was negatively correlated between moisture content and amount of adsorption. The adsorption entropy of CH4/CO2 was negatively correlated, and the adsorption amount was positively correlated to the adsorption entropy. At a temperature above 318 K or moisture content above 10%, the total CH4/CO2 adsorption decreased significantly and the CO2 adsorption decreased significantly. From a thermodynamic point of view, the presence of a large amount of H2O had a much greater effect on CO2 than on CH4, and an increase in temperature or moisture content was unfavorable for CO2 sequestration, CO2 stripping of CH4, and control of CH4 diffusion and desorption, whereas at low temperature, high pressure, and moisture content <1%, the effect of stripping, sequestration, and control was good.
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Affiliation(s)
- Tinggui Jia
- Institute of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Xingyu Wu
- Institute of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou 014010, China
| | - Guona Qu
- Institute of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou 014010, China
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Qiao Y, Li H, Li Y, Su E, Wang Z, Che L, Du Y. Study on the Mechanism of Eerdun Wurile's Effects on Post-operative Cognitive Dysfunction by the TLR4/NF-κB Pathway. Mol Neurobiol 2023; 60:7274-7284. [PMID: 37548853 PMCID: PMC10657789 DOI: 10.1007/s12035-023-03537-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/21/2023] [Indexed: 08/08/2023]
Abstract
The object of our work was to observe whether the Mongolian medicine Eerdun Wurile (EW) improve postoperative cognitive dysfunction (POCD) by affecting the TLR4/NF-κB. Mice (6-8-week-old male C57BL/6 J) were selected to establish an animal model of POCD by combining intracerebroventricular injection of lipopolysaccharide and nephrectomy; EW formulation and EW basic formulation were administered intra-gastrically for 7 consecutive days. The cognitive performance was assessed by Morris water maze test. H&E staining was examined to detect alterations in hippocampal tissue. Immunohistochemical staining was performed to evaluate MyD88, NF-κB, TLR4, iNOS, and IBA-1 expressions; Western blotting and RT-qPCR were performed to evaluate MyD88, NF-κB, and TLR4. The expressions of IL-6, IL-1β, and TNF-α were evaluated by ELISA. Intracerebroventricular injection of lipopolysaccharide combined with nephrectomy induced cognitive dysfunction in mice, stimulated TLR4/NF-κB and microglia, and promoted the secretion of murine TNF-α, IL-1β, and IL-6. EW formulation and EW basic formulation treatment are able to suppress the TLR4/NF-κB pathway activation and microglia, and the serum cytokine secretions related to proinflammation, and restore the cognitive performance. EW formulation and EW basic formulation can improve POCD in mice, and TLR4/NF-κB pathway seems to be one of the important mechanisms in EW's improvement of POCD.
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Affiliation(s)
- Yun Qiao
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Huiru Li
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Yan Li
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Enboer Su
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Zhe Wang
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China
| | - Limuge Che
- Medical Innovation Center for Nationalities, Inner Mongolia Medical University, Hohhot, 010110, China.
- Jinshan Economic Development Zone, Tumote Left Banner, Inner Mongolia Autonomous Region Jinshan Campus of Inner Mongolia Medical University, Hohhot City, China.
| | - Yiri Du
- Department of Anesthesiology, The Affiliated Hospital of Inner Mongolia Medical University, Huimin District, Hohhot, 010059, Inner Mongolia Autonomous Region, China.
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Bu H, Hu J, Han F, Wang L, Chen Q, Cheng P, Yue H, Dong T, Yun X. Polypropylene/Poly(butylene adipate-co-terephthalate) Breathing Film for Inhibiting Pseudomonas and Maintaining Microbial Communities and Postharvest Quality of Allium mongolicum Regel during Storage. Foods 2023; 12:3370. [PMID: 37761079 PMCID: PMC10527958 DOI: 10.3390/foods12183370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/23/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Allium mongolicum Regel (A. mongolicum) is a healthy edible plant but highly perishable with a short shelf life of 1-2 d. Modified atmosphere packaging (MAP) could inhibit the postharvest senescence and decay of the vegetables. Thus, the aim of this study was to apply MAP with different gas permeabilities to the storage of A. mongolicum and evaluate its effects on maintaining microbial communities and the postharvest quality of A. mongolicum. The results showed that polypropylene/poly(butylene adipate-co-terephthalate) (PP/PBAT, abbreviated as PAT) MAP was suitable for the storage of A. mongolicum by establishing an optimal atmosphere of 0.5-0.6% O2 and 6.2-7.1% CO2 in the bag. It could delay the postharvest senescence of A. mongolicum and maintain its quality by slowing down its respiration rate and weight loss, reducing cell membrane permeability and lipid peroxidation, maintaining the cell wall, and reducing infection and the growth of microorganisms. However, A. mongolicum in HPT was more perishable than that in PAT during storage. Pseudomonas was found to be the main spoilage bacteria, and they could also be effectively inhibited by PAT-MAP. The next-generation sequencing results also showed the growth of Escherichia-Shigella, Clostridium sensu stricto 1, Streptococcus, Aureobasidium, Didymella, and Fusarium, responsible for A. mongolicum decay or human disease, was well inhibited by PAT-MAP. The results suggested that PAT-MAP could be used to maintain microbial diversity and the postharvest quality of A. mongolicum under cold storage conditions. It provided a feasible solution for the preservation, food quality, and safety control of A. mongolicum.
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Affiliation(s)
- Hongyu Bu
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.B.); (J.H.); (Q.C.); (P.C.); (T.D.)
- Inner Mongolia Institute for Drug Control, Hohhot 010020, China; (F.H.); (H.Y.)
| | - Jian Hu
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.B.); (J.H.); (Q.C.); (P.C.); (T.D.)
| | - Feng Han
- Inner Mongolia Institute for Drug Control, Hohhot 010020, China; (F.H.); (H.Y.)
| | - Limei Wang
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China;
| | - Qianru Chen
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.B.); (J.H.); (Q.C.); (P.C.); (T.D.)
| | - Peifang Cheng
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.B.); (J.H.); (Q.C.); (P.C.); (T.D.)
| | - Hai Yue
- Inner Mongolia Institute for Drug Control, Hohhot 010020, China; (F.H.); (H.Y.)
| | - Tungalag Dong
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.B.); (J.H.); (Q.C.); (P.C.); (T.D.)
| | - Xueyan Yun
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.B.); (J.H.); (Q.C.); (P.C.); (T.D.)
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Teng Y, Bian X, Fu X, Song Y, Bai X. Effect of Iron Component on the Structural Evolution of Carbon Bonds in Hydrochloric Acid-Demineralized Lignite During Pyrolysis. ACS Omega 2023; 8:17634-17643. [PMID: 37251199 PMCID: PMC10210037 DOI: 10.1021/acsomega.3c00018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023]
Abstract
The pyrolysis characteristics of hydrochloric acid-demineralized Shengli lignite (SL+) and iron-added lignite (SL+-Fe) were investigated using a fixed-bed reactor. The primary gaseous products (CO2, CO, H2, and CH4) were detected via gas chromatography. Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy techniques were used to study the carbon bonding structures of the lignite and char samples. In situ diffuse reflectance infrared Fourier transform spectroscopy was used to better understand the effect of the iron component on the transformation of the carbon bonding structure of lignite. The results showed that CO2 was released first during pyrolysis, followed by CO, H2, and CH4, and this order was unaffected by the addition of the iron component. However, the iron component promoted the generation of CO2, CO (<340 °C), and H2 (<580 °C) at lower temperatures and inhibited the formation of CO and H2 at higher temperatures while also inhibiting the release of CH4 throughout the pyrolysis process. The iron component may form an active complex with C=O and a stable complex with C-O, which can promote the fracture of carboxyl functional groups and inhibit the decomposition of ether bonds, phenolic hydroxyl groups, methoxy groups, and other functional groups, thus promoting the decomposition of aromatic structures. At low temperatures, it promotes the decomposition of aliphatic functional groups and finally the bonding and fracture of functional groups in coal, leading to the change of the carbon skeleton, resulting in the change of gas products. However, it did not significantly affect the evolution of -OH, C=O, C=C, and C-H functional groups. According to the above results, a developing reaction mechanism model of Fe-catalyzed lignite pyrolysis was established. Therefore, it is worth doing this work.
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Affiliation(s)
- Yingyue Teng
- College
of Chemical Engineering, Inner Mongolia Key Laboratory of High-Value
Functional Utilization of Low Rank Carbon Resources, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Xiaoting Bian
- College
of Chemical Engineering, Inner Mongolia Key Laboratory of High-Value
Functional Utilization of Low Rank Carbon Resources, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Xiaojuan Fu
- The
Institute of Products Quality Inspection and Research Inner Mongolia, Hohhot, Inner Mongolia 010000, China
| | - Yinmin Song
- College
of Chemical Engineering, Inner Mongolia Key Laboratory of High-Value
Functional Utilization of Low Rank Carbon Resources, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
- Experimental
Management Center (Testing Center), Inner
Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Xue Bai
- College
of Chemical Engineering, Inner Mongolia Key Laboratory of High-Value
Functional Utilization of Low Rank Carbon Resources, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
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Guo T, Bulin C, Ma Z, Li B, Zhang Y, Zhang B, Xing R, Ge X. Mechanism of Cd(II) and Cu(II) Adsorption onto Few-Layered Magnetic Graphene Oxide as an Efficient Adsorbent. ACS Omega 2021; 6:16535-16545. [PMID: 34235325 PMCID: PMC8246493 DOI: 10.1021/acsomega.1c01770] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/08/2021] [Indexed: 05/24/2023]
Abstract
Heavy metal contamination caused by industrial discharge is a challenging environmental issue. Herein, an efficient adsorbent based on few-layered magnetic graphene oxide (FLMGO) was fabricated, characterized, and utilized to remove aqueous Cd(II) and Cu(II). Results present that the two components graphene oxide (GO) and Fe3O4 of FLMGO promote mutually, enabling FLMGO to outperform either GO or Fe3O4. Specifically, FLMGO adsorbs Cd(II) and Cu(II) with adsorption quantities of 401.14 and 1114.22 mg·g-1 in 5 and 7 min, respectively. Moreover, FLMGO can be readily recovered via magnetic separation using a hand-held magnet. Adsorptions are spontaneous, endothermic, and entropy increasing, which are the best described by the Freundlich and pseudo-second-order model. The interaction mechanism is as follows: lone pair electrons in C=O- and C-O-related groups were coordinated toward Cd(II) and Cu(II) to induce chemical interaction. The high adsorption efficiency endows FLMGO with encouraging application potential in heavy metal remediation.
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Affiliation(s)
- Ting Guo
- College
of Energy and Environment, Inner Mongolia
University of Science and Technology, Baotou 014010, P. R. China
| | - Chaoke Bulin
- College
of Materials and Metallurgy, Inner Mongolia
University of Science and Technology, Baotou 014010, P. R. China
- Central
Iron and Steel Research Institute, Beijing 100081, P. R.
China
| | - Zeyu Ma
- College
of Materials and Metallurgy, Inner Mongolia
University of Science and Technology, Baotou 014010, P. R. China
| | - Bo Li
- Central
Iron and Steel Research Institute, Beijing 100081, P. R.
China
| | - Yanghuan Zhang
- Central
Iron and Steel Research Institute, Beijing 100081, P. R.
China
| | - Bangwen Zhang
- Analysis
and Testing Center, Inner Mongolia University
of Science and Technology, Baotou 014010, P. R. China
| | - Ruiguang Xing
- College
of Materials and Metallurgy, Inner Mongolia
University of Science and Technology, Baotou 014010, P. R. China
| | - Xin Ge
- College
of Materials and Metallurgy, Inner Mongolia
University of Science and Technology, Baotou 014010, P. R. China
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