Chemistry - An Asian Journal最新文献_第10页

High Surface Area Nanoporous Carbon-Ceria Composites for CO₂ Capture and Enzyme-Mimicking Action. 用于二氧化碳捕获和酶模拟作用的高表面积纳米多孔碳铈复合材料。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-30 DOI: 10.1002/asia.202400994

Gurwinder Singh, Ajanya Maria Ruban, Harleen Kaur, Vaishwik Patel, Arsh A Ismaili, Rohan Bahadur, Ajayan Vinu

{"title":"High Surface Area Nanoporous Carbon-Ceria Composites for CO2 Capture and Enzyme-Mimicking Action.","authors":"Gurwinder Singh, Ajanya Maria Ruban, Harleen Kaur, Vaishwik Patel, Arsh A Ismaili, Rohan Bahadur, Ajayan Vinu","doi":"10.1002/asia.202400994","DOIUrl":"10.1002/asia.202400994","url":null,"abstract":"Nanoporous carbon-based composites with metal oxides have great potential for various applications including adsorption and sensing owing to their multiple properties. However, the fabrication of these nanocomposites without affecting these multiple properties is challenging. Herein, a series of nanoporous carbon-based nanocomposites with cerium nanoparticles are synthesized through a combination of high-temperature carbonization and ex-situ modification with cerium precursor. The prepared nanocomposites have appreciable surface areas, pore volumes, tunable pore sizes, and a controlled amount of surface nanoceria, all of which can be precisely controlled by varying the amount of KOH and cerium nitrate hexahydrate used for nanoceria generation. The porous carbon PC-3 was used for modification using nanoceria and the modified materials showed higher performance for the intended applications. The CO2 adsorption per unit surface of PC-3 (2.4 μmol m-2) increased to 2.9 μmol m-2 in Ce-PC-3-0.5. Furthermore, the composite materials displayed higher heat of adsorption (Qst) than bare materials, indicating stronger interactions with CO2. Interestingly, the least amount of nanoceria (CePC-3-0.25) was effective in enhancing the superoxide dismutase (SOD) and catalase activity.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142337819","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

Defect Passivation of Mn²⁺-Doped CsPbX₃(X=Cl,Br) Perovskite Nanocrystals as Electrocatalyst for Overall Water Splitting. 掺杂 Mn2+ 的 CsPbX3(X=Cl,Br)过氧化物纳米晶体的缺陷钝化作为整体水分离的电催化剂。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-30 DOI: 10.1002/asia.202400798

Haiyun Zhou, Pingping Li, Tingting Zhong, Yunzhen Teng, Siqi Li, Xiaofeng Luo, Xinning Wang, Min Yang, Guowei Deng

{"title":"Defect Passivation of Mn2+-Doped CsPbX3(X=Cl,Br) Perovskite Nanocrystals as Electrocatalyst for Overall Water Splitting.","authors":"Haiyun Zhou, Pingping Li, Tingting Zhong, Yunzhen Teng, Siqi Li, Xiaofeng Luo, Xinning Wang, Min Yang, Guowei Deng","doi":"10.1002/asia.202400798","DOIUrl":"10.1002/asia.202400798","url":null,"abstract":"Mn doping has been used to improve the physical chemistry of lead halide perovskite nanocrystals such as CsPbX3, where X is a halogen ion. In this paper, a two-phase method for Mn-doped CsPbX3 nanosheets (where X=Br, Cl), namely water-hexane system, is reported. Compared to conventional catalyst arrays, the band gap of CsPbBr3 nanocrystalline is easily tuned, the carrier diffusion distance is remote, the band edge position of the band structure is favorable for a wide range of electrocatalytic redox reactions, and the catalytic active site is maximally exposed, providing a larger electrolyte contact area. The porous hierarchical structure also accelerates the release of hydrogen bubbles. The results showed that the optimized Mn : CsPbBr3 catalyst exhibited excellent electrolytic performance of aquatic hydrogen in alkaline electrolyte (1 mol/L KOH). The overpotentials of the oxygen evolution reaction (OER) at the current densities of 10 and 100 mA cm-2 are only 114.4 and 505.4 mV, respectively, with a Tafel slope of 43 mV dec-1. At a current density of 10 mA cm-2, the excess potential required for the hydrogen evolution reaction (HER) is 158.6 mV and it exhibits excellent electrochemical stability. The Mn : CsPbBr3 nanocrystalline consists of two electrodes for hydrolysis of water, requiring only a voltage of 1.45 V. This provides implications for the optimization of electrocatalysts in alkaline electrolytes with the aim of developing next generation 2D electrocatalysts for overall water splitting.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142337813","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

3D Printing in Biocatalysis and Biosensing: From General Concepts to Practical Applications. 生物催化和生物传感中的 3D 打印：从一般概念到实际应用》。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-28 DOI: 10.1002/asia.202400717

Jonathan Nyenhuis, Christopher Heuer, Janina Bahnemann

引用次数: 0

Fabrication of thymol-loaded isabgol/Konjac glucomannan-based microporous scaffolds with enriched antioxidant and antibacterial properties for skin tissue engineering applications. 为皮肤组织工程应用制备具有丰富抗氧化和抗菌特性的胸腺酚负载异丁烯二酸/魔芋葡甘露聚糖基微孔支架。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-28 DOI: 10.1002/asia.202400839

Shruthi Sakthivel, Ponrasu Thangavel, Iniyan Saravanakumar, Vignesh Muthuvijayan

{"title":"Fabrication of thymol-loaded isabgol/Konjac glucomannan-based microporous scaffolds with enriched antioxidant and antibacterial properties for skin tissue engineering applications.","authors":"Shruthi Sakthivel, Ponrasu Thangavel, Iniyan Saravanakumar, Vignesh Muthuvijayan","doi":"10.1002/asia.202400839","DOIUrl":"https://doi.org/10.1002/asia.202400839","url":null,"abstract":"An antioxidant, antibacterial, and biocompatible biomaterial is essential to repair skin wounds effectively. Here, we have employed two natural biopolymers, isabgol (ISAB) and konjac glucomannan (KGM), to prepare microporous scaffolds by freezing and lyophilization. The scaffolds are loaded with thymol (THY) to impart potent antioxidant and antibacterial activities. The physicochemical properties of the ISAB + KGM + THY scaffold, like porosity (41.8 ± 2.4%), swelling, and biodegradation, were optimal for tissue regeneration application. Compared to the control, ISAB + KGM + THY scaffolds promote attachment, migration, and proliferation of L929 fibroblasts. The antioxidant activity of the ISAB + KGM + THY scaffold was significantly improved after loading THY. This would protect the tissues from oxidative damage. The antibacterial activity of the ISAB + KGM + THY scaffold was significantly higher than that of the control, which would help prevent bacterial infection. The vascularization ability of the ISAB + KGM scaffold was not altered by incorporating THY in the ISAB + KGM scaffold. Therefore, a strong antioxidant, antibacterial, and biocompatible nature of the ISAB + KGM + THY scaffold could be useful for various biomedical applications.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142337817","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

Transformative Hydrochloric Acid Treatment of Red Mud for Sustainable Cathode Material Production in Aqueous Zinc Ion Batteries. 对红泥进行盐酸转化处理，以实现锌离子水电池中可持续阴极材料的生产。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-27 DOI: 10.1002/asia.202401013

Muhammad Faheem, Arshad Hussain, Bashir Ahmed Johan, Atif Saeed Alzahrani, Md Abdul Aziz

{"title":"Transformative Hydrochloric Acid Treatment of Red Mud for Sustainable Cathode Material Production in Aqueous Zinc Ion Batteries.","authors":"Muhammad Faheem, Arshad Hussain, Bashir Ahmed Johan, Atif Saeed Alzahrani, Md Abdul Aziz","doi":"10.1002/asia.202401013","DOIUrl":"https://doi.org/10.1002/asia.202401013","url":null,"abstract":"The aluminum industry generates a significant amount of red mud as solid waste. This waste is high in mineral content, particularly metal oxides, and difficult to treat, manage, and recycle, resulting in malignant environmental effects. A simple, scalable, and precisely controlled hydrochloric acid treatment transforms the red mud into a useful product by selectively removing electrochemically inactive phases. This process produces a highly porous material with a significantly increased surface area, which effectively serves as the cathode material in an aqueous zinc ion battery (AZIB). RM-HCl, which was treated with acid, had better electrochemical performance than plain red mud (RM). It had an initial specific discharge capacity of 105 mAh g-1 at 0.2 to 1.8 voltage and a current density of 100 mA g-1, which stayed at 63% after 250 cycles. It also showed long-term cyclic stability at high currents of 500 mAg-1 and 1000 mAg-1 for 1000 cycles. The properties of a cathode material made from RM have the potential to be a cost-effective and environmentally friendly option. This study proposes a practical, sustainable, and expandable technique for recycling RM that promotes eco-friendly and sustainable growth in the aluminium industry.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142337821","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

First Vesicular Self-Assembly of an Apocarotenoid Bixin in Aqueous Liquids and Its Antibacterial Activity. 类胡萝卜素 Bixin 在水液中的首次囊状自组装及其抗菌活性

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-27 DOI: 10.1002/asia.202400361

Soumen Patra, Sukhendu Kar, Braja Gopal Bag

{"title":"First Vesicular Self-Assembly of an Apocarotenoid Bixin in Aqueous Liquids and Its Antibacterial Activity.","authors":"Soumen Patra, Sukhendu Kar, Braja Gopal Bag","doi":"10.1002/asia.202400361","DOIUrl":"10.1002/asia.202400361","url":null,"abstract":"Bixin 1 is the major constituent of the reddish carotenoids present in the seed-coat of Bixa orellana. The use of the extract of the seed-coat of Bixa orellana in food, cosmetics and garments is well known. The nano-sized long 24 C chain molecule has nine conjugated double bonds having extended conjugation with the '-COOH' and '-COOMe' groups present at the two ends of the molecule. Herein, we report the first self-assembly of bixin in several aqueous liquids. The molecule undergoes spontaneous self-assembly in several liquids yielding vesicular self-assembly. Characterizations of the self-assemblies of bixin were carried out by various microscopic techniques, X-ray diffraction and FTIR studies. The critical vesicular concentrations (CVCs) of the compound carried out in DMSO-water in three different solvent ratios as 2: 1 (v/v), 1: 1 (v/v) and 1: 4 (v/v) were determined to be 100 μM, 90 μM and 60 μM respectively indicating lower CVC values at higher proportion of water. Utilization of the vesicular self-assemblies of bixin have been demonstrated in the entrapment and release of fluorophores including the anticancer drugs doxorubicin and curcumin. Self-assembled bixin and curcumin loaded self-assembled bixin showed significant antibacterial activity with both Gram positive as well as Gram negative bacteria.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142337818","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

Electrochemical Halogenation of Naphthoquinones: A Modular and Sustainable Strategy towards Trypanocidal Compounds. 萘醌的电化学卤化：实现杀锥虫化合物的模块化和可持续战略。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-25 DOI: 10.1002/asia.202401050

Eduardo F S Guimarães, Gabriela A P Graça, Emilay B T Diogo, Renata G Almeida, Daiane B Pereira, Maria H Araujo, Caren D G da Silva, Claudia C Gatto, Victor F S Ramos, Rubem F S Menna-Barreto, Guilherme A M Jardim, Eufrânio Nunes da Silva Júnior

引用次数: 0

PVA-based Hydrogel Materials for Underwater Energy Storage and Underwater Sensing. 用于水下储能和水下传感的 PVA 基水凝胶材料。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-24 DOI: 10.1002/asia.202401109

Peidi Zhou, Bingjie Xu, Haihang Feng, Zhiling Luo, Mingcen Weng

{"title":"PVA-based Hydrogel Materials for Underwater Energy Storage and Underwater Sensing.","authors":"Peidi Zhou, Bingjie Xu, Haihang Feng, Zhiling Luo, Mingcen Weng","doi":"10.1002/asia.202401109","DOIUrl":"10.1002/asia.202401109","url":null,"abstract":"As human exploration of marine continues to expand, the demand for underwater devices is also increasing. The unique properties of hydrogel materials make them well-suited for underwater applications. We propose a multi-functional polyvinyl alcohol (PVA) - NaCl @ Polyaniline (PANI) (PNP) hydrogel, which is characterized by easy fabrication, integrated structure, and flexibility, and can be directly applied in the fields of underwater energy storage and underwater sensing. Solid-state supercapacitors fabricated by the PNP hydrogel, due to integrated and all-solid-state design, can be charged and discharged underwater without encapsulation. What's more, the PNP supercapacitor can maintain a capacitance retention rate of over 90 % after 5,000 cycles in simulated seawater, eliminating concerns about the hydrogel's dehydration when used underwater. The PNP hydrogel with an integrated three-layer structure can also be applied to the capacitive pressure sensors, which can also be directly used in underwater environments without the need for encapsulation, significantly reducing the structural complexity and preparation steps of the device. Finally, we demonstrate a \"supercapacitor module\" with a voltage window greater than 1.6 V created by directly connecting multiple PNP supercapacitors in series, as well as an underwater intelligent glove, providing new solutions for underwater energy storage and underwater wearable sensing applications.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142337820","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

A Novel ⋅OH-Monitor ER-Targeted Probe to Expose the Function of Sorafenib. 一种新型 -OH-monitor ER 靶向探针，用于揭示索拉非尼的功能。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-24 DOI: 10.1002/asia.202400980

Lingyu Kong, Manfen Zhao, Xiaofei Zhu, Jianfei Liu, Di Zhang, Yong Ye

{"title":"A Novel ⋅OH-Monitor ER-Targeted Probe to Expose the Function of Sorafenib.","authors":"Lingyu Kong, Manfen Zhao, Xiaofei Zhu, Jianfei Liu, Di Zhang, Yong Ye","doi":"10.1002/asia.202400980","DOIUrl":"10.1002/asia.202400980","url":null,"abstract":"The hydroxyl radical (⋅OH), widely recognized as the most potent free radical, plays a crucial role in numerous physiological and pathological pathways due to its strong oxidizability.Ferroptosis, as a novel mode of cell death, is initiated by the accumulation of iron-dependent lipid peroxidation. Among them, ⋅OH as the original reactive oxygen species (ROSs)is mass-produced due to Fenton reaction in vivo and closely related to cancer treatment.Besides, endoplasmic reticulum (ER) as a membrane-rich structure organelle, is a crucial organelle in all eukaryotes where excessive expression of ROSs, including ⋅OH can triggerER stress which was reported thatwasclosely related toferroptosis. So developing a new probe for their interrelationship research is important. In this paper, we constructed a1,8-naphthalimide-based ER-targeted fluorescence probe named M-1 to monitor ⋅OH variation in vitro and vivo. What's more, we achieved the monitor of ⋅OH during ER stress andferroptosis processesin cancer cells, andfurther explored the important role of ER stress and ferroptosis processes in SF (sorafenib) involved cancer cells.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142306768","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

High Proton Conductivity of Sulfonate-amine Ionic HOFs and Enhancement of SPEEK Composite Membranes. 磺酸胺离子 HOFs 的高质子传导性和 SPEEK 复合膜的增强。

IF 3.5 3区化学

Chemistry - An Asian Journal Pub Date : 2024-09-24 DOI: 10.1002/asia.202400870

Dan Yang, Xu-Yong Chen, Li-Hui Cao

{"title":"High Proton Conductivity of Sulfonate-amine Ionic HOFs and Enhancement of SPEEK Composite Membranes.","authors":"Dan Yang, Xu-Yong Chen, Li-Hui Cao","doi":"10.1002/asia.202400870","DOIUrl":"10.1002/asia.202400870","url":null,"abstract":"Hydrogen-bonded organic frameworks (HOFs) are crystalline materials assembled by intermolecular hydrogen-bonding interactions, and their hydrogen-bonding structures are effective pathways for proton transport. Herein, we synthesize iHOF-45 using 4,4'-diaminodiphenylmethane and 1,3,6,8-pyrenetetrasulfonicacid sodium salt with 2D hydrogen-bonding networks. The stability of ionic HOFs (iHOFs) can be enhanced by introducing ionic bonds in addition to hydrogen-bonding forces. Thermal analyses demonstrated that iHOF-45 exhibited excellent thermal stability up to 332 °C. The proton conductivity of iHOF-45 was evaluated, demonstrating a notable increase with rising temperature and RH. At 100 °C and 98 % RH, the conductivity reached 5.25×10-3 S cm-1. The activation energy (Ea) of iHOF-45 was calculated to be 0.281 eV for 98 % RH, and the proton conduction was attributed to the Grotthuss mechanism, whereby the protons were transported in 2D hydrogen-bonding networks. Moreover, iHOF-45 was doped into SPEEK to prepare composite membranes, the proton conductivity of the 15 % iHOF-45/SPEEK membrane reached 9.52×10-2 S cm-1 at 80 °C and 98 % RH, representing a 45.1 % increase over that of the SPEEK. This suggests that doping enhances the proton conductivity of SPEEK and providing a reference for the development of high proton conductivity materials.","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142306769","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