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Construction of glycosylated zein-based colloids to simultaneously improve fucoxanthin's thermal processing adaptability, digestive stability, and oral bioavailability. 构建糖基化玉米蛋白胶体,以同时改善岩藻黄质的热加工适应性、消化稳定性和口服生物利用度。
IF 5.4 2区 医学
Colloids and Surfaces B: Biointerfaces Pub Date : 2025-01-01 Epub Date: 2024-10-23 DOI: 10.1016/j.colsurfb.2024.114334
Yuanjie Guo, Hailan Wang, Liyuan Ma, Zixin Guo, Yixiang Liu, Jie Zheng
{"title":"Construction of glycosylated zein-based colloids to simultaneously improve fucoxanthin's thermal processing adaptability, digestive stability, and oral bioavailability.","authors":"Yuanjie Guo, Hailan Wang, Liyuan Ma, Zixin Guo, Yixiang Liu, Jie Zheng","doi":"10.1016/j.colsurfb.2024.114334","DOIUrl":"10.1016/j.colsurfb.2024.114334","url":null,"abstract":"<p><p>Fucoxanthin (FX) is a carotenoid found in marine environments with a range of nutritional functions. However, its application in the food industry has been restricted by its vulnerability to deterioration and absorption challenges. This study employed zein to develop hydrophilic colloids to enhance the thermal processing adaptability, gastrointestinal digestive stability, and oral bioavailability of FX. The findings demonstrated that the using glucose for the grafting modification of zein caused a deviation in its isoelectric point, reduced its water contact angle, and altered its secondary structure, resulting in higher hydrophilicity. Using glycosylated zein (GZ) for FX loading yielded homogenous, stable aqueous GZ-FX complex dispersion solutions with an encapsulation efficiency (EE) > 85.00 %, a particle size < 210.00 nm, a zeta-potential > -30.00 mV, and a polydispersity index (PDI) < 0.30. GZ-based encapsulation notably enhanced the thermal stability of FX, retaining approximately 90.00 % and 80.00 % of the FX at 65 ℃ and 100 ℃, respectively. During in vitro simulated gastrointestinal digestion, GZ-encapsulation of FX demonstrated a retention increase of 30.63 % and a 2.31-fold higher micellization rate. The in vivo absorption results showed that GZ-based encapsulation dramatically increased FX oral bioavailability, while its serum, liver, and kidney response levels were 51.49-fold, 5.13-fold and 6.73-fold higher. This study suggests that glycosylated alcohol-soluble proteins are highly effective carriers for delivering carotenoids, with significant application potential in the food industry.</p>","PeriodicalId":279,"journal":{"name":"Colloids and Surfaces B: Biointerfaces","volume":"245 ","pages":"114334"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142542494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A dual-mode strategy for early detection of sugarcane pokkah boeng disease pathogen: A portable sensing device based on Cross-N DNA framework and MoS2@GDY. 早期检测甘蔗白粉病病原体的双模式策略:基于 Cross-N DNA 框架和 MoS2@GDY 的便携式传感装置。
IF 10.7 1区 生物学
Biosensors and Bioelectronics Pub Date : 2025-01-01 Epub Date: 2024-10-23 DOI: 10.1016/j.bios.2024.116874
Yujie Song, Zeping Wang, Qingnian Wu, Jing Su, Jie Liao, Xiaoqiu Zhang, Jun Yan, Ke-Jing Huang, Xuecai Tan, Yu Ya
{"title":"A dual-mode strategy for early detection of sugarcane pokkah boeng disease pathogen: A portable sensing device based on Cross-N DNA framework and MoS<sub>2</sub>@GDY.","authors":"Yujie Song, Zeping Wang, Qingnian Wu, Jing Su, Jie Liao, Xiaoqiu Zhang, Jun Yan, Ke-Jing Huang, Xuecai Tan, Yu Ya","doi":"10.1016/j.bios.2024.116874","DOIUrl":"10.1016/j.bios.2024.116874","url":null,"abstract":"<p><p>Sucrose, a common sugar primarily derived from sugarcane, is a crucial national strategic resource. However, its yield is significantly affected by various serious diseases, with pokkah boeng disease being one of the most damaging. Therefore, developing a sensitive method for the accurate detection of the pokkah boeng disease pathogen is crucial for ensuring the safety of sugar. This work presents a portable dual-modal detection device, assisted by a smartphone, which is based on MoS<sub>2</sub>@GDY, Mn<sub>3</sub>O<sub>4</sub>@Au nanomenzyme, cross-N DNA framework and Exo III exonuclease-assisted CHA signal amplification technology. The cross-N DNA framework provides many binding sites and is not restricted by AuNPs scattering positions, enhancing the signal output strength of the sensor. Additionally, the detection system incorporates a high-power-density capacitor to further amplify the electrochemical detection signal, increasing sensitivity by 9.1 times. Moreover, the use of electrochemical and colorimetric dual-mode detection effectively avoids mutual interference, reducing the likelihood of false positives from a single signal. Under optimized conditions, the proposed method has a linear range of 0.0001-10,000 pM, and with a detection limit of 6.1 aM (S/N=3). This high-sensitivity, high-reliability portable sensing method shows significant potential for the early detection and real-time on-site monitoring of the pokkah boeng disease pathogen.</p>","PeriodicalId":259,"journal":{"name":"Biosensors and Bioelectronics","volume":"267 ","pages":"116874"},"PeriodicalIF":10.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142566837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Co-delivery of SN38 and MEF2D-siRNA via tLyp-1-modified liposomes reverses PD-L1 expression induced by STING activation in hepatocellular carcinoma. 通过tLyp-1修饰的脂质体联合递送SN38和MEF2D-siRNA可逆转STING激活诱导的肝细胞癌PD-L1表达。
IF 5.4 2区 医学
Colloids and Surfaces B: Biointerfaces Pub Date : 2025-01-01 Epub Date: 2024-10-13 DOI: 10.1016/j.colsurfb.2024.114318
Jiawei Du, Ziting Que, Ailifeire Aihaiti, Mengyan Zhai, Zhiwei Zhang, Yong Shao, Ying Zhang, Fengqin Miao, Yuqing Shen, Xin Chen, Jianqiong Zhang
{"title":"Co-delivery of SN38 and MEF2D-siRNA via tLyp-1-modified liposomes reverses PD-L1 expression induced by STING activation in hepatocellular carcinoma.","authors":"Jiawei Du, Ziting Que, Ailifeire Aihaiti, Mengyan Zhai, Zhiwei Zhang, Yong Shao, Ying Zhang, Fengqin Miao, Yuqing Shen, Xin Chen, Jianqiong Zhang","doi":"10.1016/j.colsurfb.2024.114318","DOIUrl":"10.1016/j.colsurfb.2024.114318","url":null,"abstract":"<p><p>Hepatocellular carcinoma (HCC) exhibits an immunosuppressive tumor microenvironment, leading to a low objective response rate when immune checkpoint inhibitors (ICIs) are utilized. The cGAS-STING pathway demonstrates a powerful immune stimulatory effect, nevertheless, activation of this pathway triggers an upregulation of PD-L1, which inhibits the anti-tumor function of immune cells. The present study discovered that knockdown of MEF2D by a siRNA in H22 cells decreases the expression of PD-L1. Subsequently, tLyp-1-modified liposomes were developed for the delivery of SN38 and MEF2D-siRNA. The outcomes indicated that the modification of tLyp-1 could enhance the uptake of liposomes by tumor cells. tLip/siMEF2D/SN38 liposomes can effectively knockdown the expression of MEF2D in HCC cells and reduce the expression of PD-L1 in vitro and in vivo, thereby enhancing proliferation inhibition and apoptosis induction, and effectively suppressing the growth of tumors. SN38 treatment elevated the expression of p-TBK1 and p-IRF3 in tumor tissue, signifying the activation of the cGAS-STING pathway and facilitating the maturation of dendritic cells in vitro and in vivo. At the same time, the co-delivery of MEF2D-siRNA reduced the expression of PD-L1, thereby decreasing the quantity of M2 macrophages and myeloid-derived suppressor cells (MDSCs) in tumors, increasing the number of CD4+ T cells within the tumor, and strengthening the anti-tumor immune efficacy. In conclusion, our results suggest that tLyP-1 modified, SN38- and MEF2D siRNA-loaded liposomes have the potential for the treatment of HCC and optimize the immunotherapy of HCC via STING activation.</p>","PeriodicalId":279,"journal":{"name":"Colloids and Surfaces B: Biointerfaces","volume":"245 ","pages":"114318"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142454502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Time-dependent corrosion behavior of EH36 steel caused by Pseudomonas aeruginosa based on big data monitoring technology. 基于大数据监测技术的铜绿假单胞菌对 EH36 钢腐蚀行为的时间依赖性。
IF 5.4 2区 医学
Colloids and Surfaces B: Biointerfaces Pub Date : 2025-01-01 Epub Date: 2024-11-01 DOI: 10.1016/j.colsurfb.2024.114349
Shihang Lu, Nianting Xue, Mingxu Gao, Shiqiang Chen, Renzheng Zhu, Xinyu Wang, Guangzhou Liu, Wenwen Dou
{"title":"Time-dependent corrosion behavior of EH36 steel caused by Pseudomonas aeruginosa based on big data monitoring technology.","authors":"Shihang Lu, Nianting Xue, Mingxu Gao, Shiqiang Chen, Renzheng Zhu, Xinyu Wang, Guangzhou Liu, Wenwen Dou","doi":"10.1016/j.colsurfb.2024.114349","DOIUrl":"10.1016/j.colsurfb.2024.114349","url":null,"abstract":"<p><p>Marine microbial corrosion poses a significant threat to the safe service of marine engineering equipment. Previous studies have often failed to thoroughly analyze the continuous and prolonged microbial corrosion process, resulting in an incomplete understanding of microbial corrosion mechanisms involved at various stages and the development of ineffective control strategies. This study employed a corrosion big data online real-time monitoring technique to investigate the time-dependent corrosion behavior of EH36 steel caused by Pseudomonas aeruginosa in aerobic environments over a 30-d incubation period. It was found that P. aeruginosa accelerated the corrosion of EH36 steel in the early stages by enhancing the cathodic oxygen reduction process. As oxygen levels declined, P. aeruginosa transitioned from aerobic to anaerobic respiration, promoting corrosion through biocatalytic nitrate reduction. In the later stages, the reduction in sessile cell counts, extreme low oxygen concentration, and dense surface film increased the charge transfer and film resistances, ultimately leading to corrosion inhibition. The weight loss and electrochemical data confirmed the effectiveness of the big data monitoring technique in investigating microbial corrosion, which provides new approaches for diagnosing and preventing microbial corrosion.</p>","PeriodicalId":279,"journal":{"name":"Colloids and Surfaces B: Biointerfaces","volume":"245 ","pages":"114349"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Imparting insoluble-soluble property to Cyt c by immobilizing Cyt c in UCST-pH dual responsive polymer for highly sensitive detection of phenol. 通过将 Cyt c 固定在 UCST-pH 双响应聚合物中,为 Cyt c 赋予不溶性-溶性特性,从而实现对苯酚的高灵敏度检测。
IF 5.4 2区 医学
Colloids and Surfaces B: Biointerfaces Pub Date : 2025-01-01 Epub Date: 2024-10-29 DOI: 10.1016/j.colsurfb.2024.114344
Yuanyuan Wang, Weimin Guan, Yulin Yang, Huiling Lan, Yu Wang, Yun Wang, Juan Han, Lei Wang
{"title":"Imparting insoluble-soluble property to Cyt c by immobilizing Cyt c in UCST-pH dual responsive polymer for highly sensitive detection of phenol.","authors":"Yuanyuan Wang, Weimin Guan, Yulin Yang, Huiling Lan, Yu Wang, Yun Wang, Juan Han, Lei Wang","doi":"10.1016/j.colsurfb.2024.114344","DOIUrl":"10.1016/j.colsurfb.2024.114344","url":null,"abstract":"<p><p>Immobilization of enzymes in porous organic framework (POF) materials is popular strategy to stabilize enzymes. For such solid enzyme catalysis system, improving the catalytic efficiency is challenging due to the diffusion resistance from solid-liquid interface and inner pores. Here, UCST-pH dual responsive polymeric carrier (PEG-b-PAAm-b-P(GMA-co-AAc)) was synthesized to immobilize cytochrome c (Cyt c), which impart the reversibly insoluble-soluble property to the immobilized Cyt c. The PEG-b-PAAm-b-P(GMA-co-AAc) could serve as an insoluble-soluble matrix to fast and efficiently immobilize Cyt c via covalent attachment, achieving a remarkable 92 % loading efficiency within just 120 min. The obtained insoluble PEG-b-PAAm-b-P(GMA-co-AAc)-Cyt c micelles exhibited an improvement in thermal, pH stability and reusability. The completely soluble PEG-b-PAAm-b-P(GMA-co-AAc)-Cyt c conjugates accelerated substrate diffusion and then enhanced the catalytic efficiency. These excellent advantages led to low detection limit (1.99 μM), lower than the presently reported biosensors based on enzyme mimics in the colorimetric detection of phenol. This UCST-pH dual responsive window presents a new platform to efficiently control the immobilization and release of enzymes, which will achieve excellent stability and catalytic efficiency.</p>","PeriodicalId":279,"journal":{"name":"Colloids and Surfaces B: Biointerfaces","volume":"245 ","pages":"114344"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Colon-targeted self-assembled nanoparticles loaded with berberine double salt ameliorate ulcerative colitis by improving intestinal mucosal barrier and gut microbiota. 负载小檗碱双盐的结肠靶向自组装纳米粒子可通过改善肠粘膜屏障和肠道微生物群来缓解溃疡性结肠炎。
IF 5.4 2区 医学
Colloids and Surfaces B: Biointerfaces Pub Date : 2025-01-01 Epub Date: 2024-11-02 DOI: 10.1016/j.colsurfb.2024.114353
Yalong Wang, Yan Chen, Hongjuan Zhang, Shihui Yu, Gang Yuan, Haiyan Hu
{"title":"Colon-targeted self-assembled nanoparticles loaded with berberine double salt ameliorate ulcerative colitis by improving intestinal mucosal barrier and gut microbiota.","authors":"Yalong Wang, Yan Chen, Hongjuan Zhang, Shihui Yu, Gang Yuan, Haiyan Hu","doi":"10.1016/j.colsurfb.2024.114353","DOIUrl":"10.1016/j.colsurfb.2024.114353","url":null,"abstract":"<p><p>Ulcerative colitis (UC) is a chronic, recurrent inflammatory bowel disease marked by disturbances in intestinal mucosal barriers, persistent inflammation, oxidative stress, and dysbiosis of the intestinal microbiota. Traditional treatments often fail to adequately address these issues, primarily targeting inflammation. To address these limitations, this study developed an innovative approach using self-assembled nanoparticles for oral administration that target colonic inflammation. Berberine hydrochloride and ursodeoxycholic acid were combined to form a double salt (BeU), enhancing solubility and encapsulation. An amphiphilic polymer (FU-PA) was created by esterifying fucoidan with palmitic acid. FU-PA/BeU nanoparticles were prepared using the nanoprecipitation method and further encapsulated in acid-resistant sodium alginate microspheres (FU-PA/BeU NPs@MS) for targeted delivery to colonic lesions. The aggregation rate of nanoparticles with mucus was significantly reduced to 59 % of free berberine, while the apparent permeability coefficient increased by 2.4 times. In vitro, FU-PA/BeU NPs effectively targeted inflammatory macrophages, reducing IL-6 and NO levels while increasing IL-10 level (to 42.5 %, 26.8 %, and 539 % of the LPS-treated group, respectively). Additionally, the ABTS and DPPH radical scavenging capabilities of FU-PA/BeU NPs were 177.8 % and 151.7 % of BeU, respectively. In dextran sulphate sodium-induced UC mice, oral FU-PA/BeU NPs@MS significantly improved epithelial and mucosal barriers, restored gut microbiota diversity, reduced inflammation and oxidative stress. Remarkably, the mean colon length in the FU-PA/BeU NPs@MS group was 1.2 times longer than that in the sulfasalazine group. These dual-targeted FU-PA/BeU NPs@MS show great potential for UC treatment.</p>","PeriodicalId":279,"journal":{"name":"Colloids and Surfaces B: Biointerfaces","volume":"245 ","pages":"114353"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced therapeutic intervention of curcumin loaded in exosomes derived from milk in alleviating retinal pigment epithelial cells damage. 牛奶外泌体中的姜黄素在减轻视网膜色素上皮细胞损伤方面具有更强的治疗干预作用。
IF 5.4 2区 医学
Colloids and Surfaces B: Biointerfaces Pub Date : 2025-01-01 Epub Date: 2024-10-16 DOI: 10.1016/j.colsurfb.2024.114325
Shida Wu, Kuiyou Wang, Qiyan Lv, Mingqian Tan
{"title":"Enhanced therapeutic intervention of curcumin loaded in exosomes derived from milk in alleviating retinal pigment epithelial cells damage.","authors":"Shida Wu, Kuiyou Wang, Qiyan Lv, Mingqian Tan","doi":"10.1016/j.colsurfb.2024.114325","DOIUrl":"10.1016/j.colsurfb.2024.114325","url":null,"abstract":"<p><p>The macula, a small but highly important area in the retina, is crucial for healthy vision. Age-related macular degeneration is responsible for approximately 8.7 % of blindness worldwide, and affected individuals are burgeoning. The age-related macular degeneration is often triggered by oxidative stress and excessive inflammation that damage the retinal pigment epithelial cells in the macula. Curcumin, a potent antioxidant and anti-inflammatory carotenoid, is hampered by low compatibility and stability issues in food science. Innovatively, this study harnessed milk-derived exosomes as a novel delivery method yielding a curcumin-infused system (curcumin@exosome) to increase its biocompatibility and stability. This fusion not only curbed excessive reactive oxygen species but also neutralized H<sub>2</sub>O<sub>2</sub>-induced mitochondrial disruption in cellular models. It revitalized retinal pigment epithelial cells, reverting their function near to baseline in vitro. The curcumin@exosome outshined in subduing pro-inflammatory cytokines tumor necrosis factor-α and interleukin-1β induced by sodium iodate. This study illuminates that the curcumin@exosome is promise as a therapeutic intervention for retinal ailments marked by oxidative and inflammatory distress.</p>","PeriodicalId":279,"journal":{"name":"Colloids and Surfaces B: Biointerfaces","volume":"245 ","pages":"114325"},"PeriodicalIF":5.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142454506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing Formation Energy Barrier of NiCo-LDH Cocatalyst to Enhance Photoelectrochemical Benzyl Alcohol Oxidation
IF 6.475 2区 化学
The Journal of Physical Chemistry Letters Pub Date : 2024-12-21 DOI: 10.1021/acs.jpclett.4c03065
Bin Gao, Xiaowei Mu, Jianming Liu, Jianyong Feng, Huiting Huang, Zhigang Zou, Zhaosheng Li
{"title":"Optimizing Formation Energy Barrier of NiCo-LDH Cocatalyst to Enhance Photoelectrochemical Benzyl Alcohol Oxidation","authors":"Bin Gao, Xiaowei Mu, Jianming Liu, Jianyong Feng, Huiting Huang, Zhigang Zou, Zhaosheng Li","doi":"10.1021/acs.jpclett.4c03065","DOIUrl":"https://doi.org/10.1021/acs.jpclett.4c03065","url":null,"abstract":"Using organic oxidation reactions to replace the oxygen evolution reaction is a promising approach for producing high-value organic products and hydrogen. Here, we report a photoelectrochemical benzyl alcohol oxidation system based on an α-Fe<sub>2</sub>O<sub>3</sub> photoanode coated with a NiCo-layered double hydroxide (NiCo-LDH) cocatalyst. By adjustment of the relative content of Ni and Co in the NiCo-LDH, the optimized photoanode achieved a benzyl alcohol conversion efficiency of 99.1% and benzoic acid selectivity of 90.9%. Experimental studies revealed that the benzyl alcohol oxidation reaction proceeds via an indirect catalytic mechanism involving high-valence species of the NiCo-LDH cocatalyst. Co in NiCo-LDH reduced the formation energy barrier and oxidative capability of the high-valence species, thereby influencing the performance of the photoanode. This work provides insights into the crucial role of cocatalyst composition in organic reaction oxidation and contributes to developing various photoelectrochemical organic oxidation systems.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"88 1","pages":""},"PeriodicalIF":6.475,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enantioselective Toxicity of Ibuprofen to Earthworms: Unraveling the Effect and Mechanism on Enhanced Toxicity of S-Ibuprofen Over R-Ibuprofen
IF 9.028 1区 环境科学与生态学
环境科学与技术 Pub Date : 2024-12-21 DOI: 10.1021/acs.est.4c08655
Wenqi Jiang, Zeyu Zhao, Qi Zhao, Xiwei He, Haonan Chen, Gang Wu, Xu-Xiang Zhang
{"title":"Enantioselective Toxicity of Ibuprofen to Earthworms: Unraveling the Effect and Mechanism on Enhanced Toxicity of S-Ibuprofen Over R-Ibuprofen","authors":"Wenqi Jiang, Zeyu Zhao, Qi Zhao, Xiwei He, Haonan Chen, Gang Wu, Xu-Xiang Zhang","doi":"10.1021/acs.est.4c08655","DOIUrl":"https://doi.org/10.1021/acs.est.4c08655","url":null,"abstract":"With the global implementation of wastewater reuse, accurately assessing the soil ecological risk of chiral pollutants from wastewater necessitates a comprehensive understanding of their enantioselective toxicity to soil animals. Ibuprofen (IBU) is the most prevalent chiral pharmaceutical in municipal wastewater. However, its enantioselective toxicity toward soil animals and the underlying mechanism remain largely unknown. In this study, the toxicity of IBU enantiomers, <i>S</i>-IBU and <i>R</i>-IBU, to earthworms was evaluated at environmentally relevant concentrations (10 and 100 μg/L), simulating wastewater reuse for irrigation. The results demonstrated that IBU adversely affects the growth, reproduction, regeneration, defense systems, and metabolic processes of earthworms, with <i>S</i>-IBU exhibiting stronger toxic effects than <i>R</i>-IBU. The bioavailability assessment revealed that <i>S</i>-IBU was more readily absorbed by earthworms and converted to its enantiomer within earthworms than <i>R</i>-IBU. This is consistent with molecular docking results showing that <i>S</i>-IBU had stronger affinities for functional proteins associated with xenobiotic transport and transformation. The findings of this study highlight that <i>S</i>-IBU poses a higher risk than <i>R</i>-IBU to soil organisms under wastewater reuse scenarios and that the chirality of chemical pollutants in wastewater deserves more attention when implementing wastewater reuse. In addition, our study underscores that the differences in bioavailability and bioactivity may account for the enantioselective toxicity of chiral pollutants.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"269 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electronic Hybridization between Closed-Shell Materials
IF 4.126 3区 化学
The Journal of Physical Chemistry C Pub Date : 2024-12-21 DOI: 10.1021/acs.jpcc.4c06985
Wen-Xin Xia, Xiao-Huan Lv, Mei-Yan Tian, Yu-Meng Gao, Ke-Xin Hou, Peng-Lai Gong, Chen-Dong Jin, Jiang-Long Wang, Xing-Qiang Shi
{"title":"Electronic Hybridization between Closed-Shell Materials","authors":"Wen-Xin Xia, Xiao-Huan Lv, Mei-Yan Tian, Yu-Meng Gao, Ke-Xin Hou, Peng-Lai Gong, Chen-Dong Jin, Jiang-Long Wang, Xing-Qiang Shi","doi":"10.1021/acs.jpcc.4c06985","DOIUrl":"https://doi.org/10.1021/acs.jpcc.4c06985","url":null,"abstract":"Closed-shell structures (noble-gas atoms, nonpolar molecules, and 2D layered materials) gathered together with an equilibrium distance under the balanced forces of van der Waals attraction (London dispersion force) and repulsive electronic interaction (REI). Different terminologies are used in describing the REI in different systems, such as the Pauli repulsion between noble-gas atoms, the repulsive π–π stacking between parallel benzene rings, and the interlayer quasi-bonding (QB) between 2D layered materials such as MoS<sub>2</sub>. In the current work, based on density functional theory calculations and explicit accounting for the overlap integral between closed-shell structures in our analysis, we show that the REIs in different systems have the same nature; namely, all can be seen as the QB of the two-orbital–four-electron repulsion interaction or a generalization of it to multiple energy-level interactions. All of the REIs cause asymmetric energy-level splitting and electron-density depletion at the middle region of the quasi-bond due to the occupation of the antibonding state; however, the degree of charge density change and energy-level asymmetry is different. Our consistent understanding deepens the connotation of QB interaction that is widely present in van der Waals materials of different and mixed dimensions, and hence, our insights inspire further studies on the electronic hybridization in these materials and exploring its effects on diverse properties and applications.","PeriodicalId":61,"journal":{"name":"The Journal of Physical Chemistry C","volume":"3 1","pages":""},"PeriodicalIF":4.126,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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