Bioinorganic Chemistry and Applications最新文献

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Optimization of Precious Metals Recovery from Electronic Waste by Chromobacterium violaceum Using Response Surface Methodology (RSM). 响应面法优化紫色色杆菌从电子废弃物中回收贵金属的工艺。
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2023-01-01 DOI: 10.1155/2023/4011670
Wan Nur Fazlina Abdol Jani, Fatihah Suja', Sharifah Iziuna Sayed Jamaludin, Nor Fadilah Mohamad, Noor Hidayu Abdul Rani
{"title":"Optimization of Precious Metals Recovery from Electronic Waste by <i>Chromobacterium violaceum</i> Using Response Surface Methodology (RSM).","authors":"Wan Nur Fazlina Abdol Jani,&nbsp;Fatihah Suja',&nbsp;Sharifah Iziuna Sayed Jamaludin,&nbsp;Nor Fadilah Mohamad,&nbsp;Noor Hidayu Abdul Rani","doi":"10.1155/2023/4011670","DOIUrl":"https://doi.org/10.1155/2023/4011670","url":null,"abstract":"<p><p>An effective recovery technology will be valuable in the future because the concentration of the precious metal contained in the source can be a key driver in recycling technology. This study aims to use response surface methodology (RSM) through Minitab software to discover the optimum oxygen level (mgL<sup>-1</sup>), e-waste pulp density (% w/v), and glycine concentration (mgL<sup>-1</sup>) for the maximum recovery of gold (Au) and silver (Ag). The method of precious metals recovery used for this study was taken from the bioleaching using 2 L of batch stirred tank reactor (BSTR). A Box-Behnken of RSM experimental statistical designs was used to optimize the experimental procedure. The result of the RSM optimization showed that the highest recovery was achieved at an oxygen concentration of 0.56 mgL<sup>-1</sup>, a pulp density of 1.95%, and a glycine concentration of 2.49 mgL<sup>-1</sup>, which resulted in the recovery of 62.40% of Au. The pulp density and glycine concentration greatly impact how much Au is bioleached by <i>C. violaceum</i>. As a result, not all of the variables analyzed seem crucial for getting the best precious metals recovery, and some adjustments may be useful in the future.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":"2023 ","pages":"4011670"},"PeriodicalIF":3.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10079379/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9265730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Retracted: Development Mode of Recreation Belt around the City: Ecological Authenticity or Fashion Creativity? 摘要:环城游憩带的发展模式:生态本真还是时尚创意?
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2023-01-01 DOI: 10.1155/2023/9862820
Bioinorganic Chemistry And Applications
{"title":"Retracted: Development Mode of Recreation Belt around the City: Ecological Authenticity or Fashion Creativity?","authors":"Bioinorganic Chemistry And Applications","doi":"10.1155/2023/9862820","DOIUrl":"https://doi.org/10.1155/2023/9862820","url":null,"abstract":"<p><p>[This retracts the article DOI: 10.1155/2022/9292668.].</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":"2023 ","pages":"9862820"},"PeriodicalIF":3.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10469363/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10525630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced Peroxidase-Like and Antibacterial Activity of Ir-CoatedPd-Pt Nanodendrites as Nanozyme. ir包覆pd - pt纳米枝作为纳米酶增强过氧化物酶样和抗菌活性。
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2023-01-01 DOI: 10.1155/2023/1689455
Jingfang Song, Jian He, Lin Yang, Weiguo Wang, Qinqin Bai, Wei Feng, Ranhui Li
{"title":"Enhanced Peroxidase-Like and Antibacterial Activity of Ir-CoatedPd-Pt Nanodendrites as Nanozyme.","authors":"Jingfang Song,&nbsp;Jian He,&nbsp;Lin Yang,&nbsp;Weiguo Wang,&nbsp;Qinqin Bai,&nbsp;Wei Feng,&nbsp;Ranhui Li","doi":"10.1155/2023/1689455","DOIUrl":"https://doi.org/10.1155/2023/1689455","url":null,"abstract":"<p><p>To inhibit the growth of bacteria, the DA-PPI nanozyme with enhanced peroxidase-like activity was synthesized. The DA-PPI nanozyme was obtained by depositing high-affinity element iridium (Ir) on the surface of Pd-Pt dendritic structures. The morphology and composition of DA-PPI nanozyme were characterized using SEM, TEM, and XPS. The kinetic results showed that the DA-PPI nanozyme possessed a higher peroxidase-like activity than that of Pd-Pt dendritic structures. The PL, ESR, and DFT were employed to explain the high peroxidase activity. As a proof of concept, the DA-PPI nanozyme could effectively inhibit <i>E. coli</i> (G<sup>-</sup>) and <i>S. aureus</i> (G<sup>+</sup>) due to its high peroxidase-like activity. The study provides a new idea for the design of high active nanozymes and their application in the field of antibacterial.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":"2023 ","pages":"1689455"},"PeriodicalIF":3.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9946763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10793939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Targeting Tumor Microenvironment by Metal Peroxide Nanoparticles in Cancer Therapy. 在癌症治疗中利用过氧化金属纳米粒子靶向肿瘤微环境
IF 4.7 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2022-12-16 eCollection Date: 2022-01-01 DOI: 10.1155/2022/5041399
Simon Ngigi Mbugua
{"title":"Targeting Tumor Microenvironment by Metal Peroxide Nanoparticles in Cancer Therapy.","authors":"Simon Ngigi Mbugua","doi":"10.1155/2022/5041399","DOIUrl":"10.1155/2022/5041399","url":null,"abstract":"<p><p>Solid tumors have a unique tumor microenvironment (TME), which includes hypoxia, low acidity, and high hydrogen peroxide and glutathione (GSH) levels, among others. These unique factors, which offer favourable microenvironments and nourishment for tumor development and spread, also serve as a gateway for specific and successful cancer therapies. A good example is metal peroxide structures which have been synthesized and utilized to enhance oxygen supply and they have shown great promise in the alleviation of hypoxia. In a hypoxic environment, certain oxygen-dependent treatments such as photodynamic therapy and radiotherapy fail to respond and therefore modulating the hypoxic tumor microenvironment has been found to enhance the antitumor impact of certain drugs. Under acidic environments, the hydrogen peroxide produced by the reaction of metal peroxides with water not only induces oxidative stress but also produces additional oxygen. This is achieved since hydrogen peroxide acts as a reactive substrate for molecules such as catalyse enzymes, alleviating tumor hypoxia observed in the tumor microenvironment. Metal ions released in the process can also offer distinct bioactivity in their own right. Metal peroxides used in anticancer therapy are a rapidly evolving field, and there is good evidence that they are a good option for regulating the tumor microenvironment in cancer therapy. In this regard, the synthesis and mechanisms behind the successful application of metal peroxides to specifically target the tumor microenvironment are highlighted in this review. Various characteristics of TME such as angiogenesis, inflammation, hypoxia, acidity levels, and metal ion homeostasis are addressed in this regard, together with certain forms of synergistic combination treatments.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":"2022 ","pages":"5041399"},"PeriodicalIF":4.7,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9788889/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10438084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of Behavior of 13X Zeolite Modified with Transition Metals for Catalytic Applications. 过渡金属改性13X沸石的催化性能评价
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2022-10-26 eCollection Date: 2022-01-01 DOI: 10.1155/2022/7352074
Elena David
{"title":"Evaluation of Behavior of 13X Zeolite Modified with Transition Metals for Catalytic Applications.","authors":"Elena David","doi":"10.1155/2022/7352074","DOIUrl":"https://doi.org/10.1155/2022/7352074","url":null,"abstract":"<p><p>This work was intended to develop catalysts based on 13X zeolite modified with transition metals for catalytic applications. In this regard, 13X zeolite was modified by loading of transition metals such as Fe, Co, Cu and various types of catalysts such as Fe-, Co-, Cu-, Fe-Co-, Fe-Cu-, and Co-Cu/13X zeolite were obtained. To prepare these catalysts, the wet impregnation method and metallic precursors were used. The catalysts were characterized by SEM, XRD, BET, and ammonia adsorption. Then the catalytic performance was investigated during upgrading of rapeseed residual biomass pyrolysis vapors using this catalysts and a fixed-bed reactor in two stages. Experimental results showed that the addition of transition metals improved the catalytic selectivity towards aromatic hydrocarbons and Fe-Cu/13X zeolite catalyst was the best and had a high deoxygenation activity (from 62.45% to 20.56%), produced maximum monoaromatic hydrocarbons (of 27.45%), the oxygen content in bio-oil was reduced from 34.98 wt% to 16.06 wt%, the calorific value increased and thus the bio-oil quality was improved.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":" ","pages":"7352074"},"PeriodicalIF":3.8,"publicationDate":"2022-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9629948/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40471229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Facile Fabrication of CuO Nanoparticles Embedded in N-Doped Carbon Nanostructure for Electrochemical Sensing of Dopamine. 氮掺杂碳纳米结构中嵌入CuO纳米粒子的制备及其对多巴胺的电化学传感。
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2022-10-14 eCollection Date: 2022-01-01 DOI: 10.1155/2022/6482133
Nebras Sobahi, Mohd Imran, Mohammad Ehtisham Khan, Akbar Mohammad, Md Mottahir Alam, Taeho Yoon, Ibrahim M Mehedi, Mohammad A Hussain, Mohammed J Abdulaal, Ahmad A Jiman
{"title":"Facile Fabrication of CuO Nanoparticles Embedded in N-Doped Carbon Nanostructure for Electrochemical Sensing of Dopamine.","authors":"Nebras Sobahi,&nbsp;Mohd Imran,&nbsp;Mohammad Ehtisham Khan,&nbsp;Akbar Mohammad,&nbsp;Md Mottahir Alam,&nbsp;Taeho Yoon,&nbsp;Ibrahim M Mehedi,&nbsp;Mohammad A Hussain,&nbsp;Mohammed J Abdulaal,&nbsp;Ahmad A Jiman","doi":"10.1155/2022/6482133","DOIUrl":"https://doi.org/10.1155/2022/6482133","url":null,"abstract":"<p><p>In the present study, a highly selective and sensitive electrochemical sensing platform for the detection of dopamine was developed with CuO nanoparticles embedded in N-doped carbon nanostructure (CuO@NDC). The successfully fabricated nanostructures were characterized by standard instrumentation techniques. The fabricated CuO@NDC nanostructures were used for the development of dopamine electrochemical sensor. The reaction mechanism of a dopamine on the electrode surface is a three-electron three-proton process. The proposed sensor's performance was shown to be superior to several recently reported investigations. Under optimized conditions, the linear equation for detecting dopamine by differential pulse voltammetry is <i>I</i> <sub>pa</sub> (<i>μ</i>A) = 0.07701 <i>c</i> (<i>μ</i>M) - 0.1232 (<i>R</i> <sup>2</sup> = 0.996), and the linear range is 5-75 <i>μ</i>M. The limit of detection (LOD) and sensitivity were calculated as 0.868 <i>μ</i>M and 421.1 <i>μ</i>A/<i>μ</i>M, respectively. The sensor has simple preparation, low cost, high sensitivity, good stability, and good reproducibility.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":" ","pages":"6482133"},"PeriodicalIF":3.8,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9586835/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40653517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
The Adsorption Potential of Cr from Water by ZnO Nanoparticles Synthesized by Azolla pinnata. 由羽状萍合成的ZnO纳米颗粒对水中铬的吸附势。
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2022-10-11 eCollection Date: 2022-01-01 DOI: 10.1155/2022/6209013
Ou Wenjie, Waqas Ahmed, Fu Xiuxian, Wang Lu, Li Jiannan, Yang Jie, Rana Muhammad Ammar Asghar, Mohsin Mahmood, Juha M Alatalo, Muhammad Imtiaz, Weidong Li, Sajid Mehmood
{"title":"The Adsorption Potential of Cr from Water by ZnO Nanoparticles Synthesized by <i>Azolla pinnata</i>.","authors":"Ou Wenjie,&nbsp;Waqas Ahmed,&nbsp;Fu Xiuxian,&nbsp;Wang Lu,&nbsp;Li Jiannan,&nbsp;Yang Jie,&nbsp;Rana Muhammad Ammar Asghar,&nbsp;Mohsin Mahmood,&nbsp;Juha M Alatalo,&nbsp;Muhammad Imtiaz,&nbsp;Weidong Li,&nbsp;Sajid Mehmood","doi":"10.1155/2022/6209013","DOIUrl":"https://doi.org/10.1155/2022/6209013","url":null,"abstract":"<p><p>Aqueous solutions containing toxic elements (TEs) (such as hexavalent chromium (Cr (VI)) can be toxic to humans even at trace levels. Thus, removing TEs from the aqueous environment is essential for the protection of biodiversity, hydrosphere ecosystems, and humans. For plant fabrication of zinc oxide nanoparticles (PF-ZnONPs), <i>Azolla pinnata</i> plants were used, and X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), SEM, and FTIR techniques were used for the identification of PF-ZnONPs and ZnONPs, which were used to remove Cr (VI) from aqueous solution. A number of adsorption parameters were studied, including pH, dose, concentration of metal ions, and contact time. The removal efficiency of PF-ZnONPs for Cr (VI) has been found to be 96% at a time (60 min), 69.02% at pH 4, and 70.43% at a dose (10 mg·L<sup>-1</sup>). It was found that the pseudo-second-order model best described the adsorption of Cr (VI) onto PF-ZnONPs, indicating a fast initial adsorption via diffusion. The experimental data were also highly consistent with the Langmuir isotherm model calculations.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":" ","pages":"6209013"},"PeriodicalIF":3.8,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9578909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40560896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Cytotoxicity and Genotoxicity of Biogenic Silver Nanoparticles in A549 and BEAS-2B Cell Lines. 生物源性纳米银对A549和BEAS-2B细胞株的细胞毒性和遗传毒性。
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2022-09-23 eCollection Date: 2022-01-01 DOI: 10.1155/2022/8546079
Musthahimah Muhamad, Nurhidayah Ab Rahim, Wan Adnan Wan Omar, Nik Nur Syazni Nik Mohamed Kamal
{"title":"Cytotoxicity and Genotoxicity of Biogenic Silver Nanoparticles in A549 and BEAS-2B Cell Lines.","authors":"Musthahimah Muhamad,&nbsp;Nurhidayah Ab Rahim,&nbsp;Wan Adnan Wan Omar,&nbsp;Nik Nur Syazni Nik Mohamed Kamal","doi":"10.1155/2022/8546079","DOIUrl":"https://doi.org/10.1155/2022/8546079","url":null,"abstract":"<p><strong>Introduction: </strong>Biogenic silver nanoparticles (AgNPs-GA) were successfully synthesised using <i>Garcinia atroviridis</i> leaf extract as a reducing agent, which has ethnopharmacological claims against various diseases including cancer. <i>Aim of the Study</i>. Aim of the study is to discover whether AgNPs-GA has cytotoxic and genotoxic effects on cancerous (A549) and noncancerous (BEAS-2B) human lung cells.</p><p><strong>Materials and methods: </strong>The cytotoxicity profiles of AgNPs-GA were characterized by MTT assay, intracellular reactive oxygen species (ROS) assay, and DAPI and AOPI double staining, whilst genotoxicity was assessed using Comet Assay analysis. The level of silver ions (Ag<sup>+</sup>) and cellular uptake of AgNPs-GA were evaluated by ICP-OES and TEM analyses, respectively.</p><p><strong>Results: </strong>A significant cytotoxic effect was observed by AgNPs-GA on both A549 and BEAS-2B cell lines, with IC<sub>50</sub> values of 20-28 <i>μ</i>g/ml and 12-35 <i>μ</i>g/ml, respectively. The cytotoxicity profile of AgNPs-GA was also accompanied by a pronounced increase in ROS production, DNA damage, and apoptosis. Moreover, Ag<sup>+</sup> was also detected in cells exposed to AgNPs-GA threefold higher compared to controls. In this study, AgNPs-GA were endocytosed within lysosomes, which may direct to secondary toxicity effects including oxidative stress, impairment of the cell membrane, DNA fragmentation, and cell death.</p><p><strong>Conclusions: </strong>Taken together, novel toxicological-related mechanisms by AgNPs-GA were proposed involving the generation of ROS that causes DNA damage which led to programmed cell death in both A549 and BEAS-2B cells. Therefore, a combination of scientific assessments is constantly needed to ensure that the quality of biosynthesized nanoparticles is controlled and their safe development is promoted.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":" ","pages":"8546079"},"PeriodicalIF":3.8,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9525761/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33486559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Development and Characterization of Carbon-Based Adsorbents Derived from Agricultural Wastes and Their Effectiveness in Adsorption of Heavy Metals in Waste Water. 农业废弃物碳基吸附剂的研制、表征及其对废水中重金属的吸附效果
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2022-09-23 eCollection Date: 2022-01-01 DOI: 10.1155/2022/1659855
L Natrayan, S Kaliappan, C Naga Dheeraj Kumar Reddy, M Karthick, N S Sivakumar, Pravin P Patil, S Sekar, Subash Thanappan
{"title":"Development and Characterization of Carbon-Based Adsorbents Derived from Agricultural Wastes and Their Effectiveness in Adsorption of Heavy Metals in Waste Water.","authors":"L Natrayan,&nbsp;S Kaliappan,&nbsp;C Naga Dheeraj Kumar Reddy,&nbsp;M Karthick,&nbsp;N S Sivakumar,&nbsp;Pravin P Patil,&nbsp;S Sekar,&nbsp;Subash Thanappan","doi":"10.1155/2022/1659855","DOIUrl":"https://doi.org/10.1155/2022/1659855","url":null,"abstract":"<p><p>The current work focuses on peanut shells and agricultural wastes richly in many nations subjected to pyrolysis treatment at various temperatures in the range of 500-800°C to determine the feasible physiochemical characteristics of the biochar. The biochars with the high surface area were employed to adsorb Pb<sup>2+</sup> (lead) ions, the heaviest pollutants in the water bodies. The raw material, biochar, and pyrolyzed biochar were characterized by SEM, FTIR, partial and elemental analysis, and BET tests. The adsorption characteristics of the biochar, pre- and postpyrolysis treatment, were studied with the assistance of batch adsorption tests under varying test conditions. Adsorbing conditions were determined by evaluating the effects of adsorbing parameters like initial concentration of the lead in water, pH of the adsorbent, contact time, and mixing speed on the effective adsorption of Pb<sup>2+</sup> ions from water. Langmuir, Freundlich, and Themkin isotherm expressions were employed to study the experimental results. The adsorption kinetics study showed that the synthesized biochars were chemically stable enough to adsorb the Pb ions onto the surface.</p>","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":" ","pages":"1659855"},"PeriodicalIF":3.8,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9525768/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33486558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Biological Evaluation of Platinum(II) Sulfonamido Complexes: Synthesis, Characterization, Cytotoxicity, and Biological Imaging. 铂(II)磺胺配合物的生物学评价:合成、表征、细胞毒性和生物成像。
IF 3.8 3区 化学
Bioinorganic Chemistry and Applications Pub Date : 2022-09-13 eCollection Date: 2022-01-01 DOI: 10.1155/2022/7821284
Charini Maladeniya, Taniya Darshani, Sameera R Samarakoon, Frank R Fronczek, W M C Sameera, Inoka C Perera, Theshini Perera
{"title":"Biological Evaluation of Platinum(II) Sulfonamido Complexes: Synthesis, Characterization, Cytotoxicity, and Biological Imaging.","authors":"Charini Maladeniya,&nbsp;Taniya Darshani,&nbsp;Sameera R Samarakoon,&nbsp;Frank R Fronczek,&nbsp;W M C Sameera,&nbsp;Inoka C Perera,&nbsp;Theshini Perera","doi":"10.1155/2022/7821284","DOIUrl":"https://doi.org/10.1155/2022/7821284","url":null,"abstract":"Platinum-based compounds are actively used in clinical trials as anticancer agents. In this study, two novel platinum complexes, (C1 = [PtCl2(N(SO2quin)dpa)], C2 = [PtCl2(N(SO2azobenz)dpa)]) containing quinoline and azobenzene appended dipicolylamine sulfonamide ligands were synthesized in good yield. The singlet attributable to methylene CH2 protons of the ligands of C1 and C2 appears as two doublets in 1H NMR spectra, which confirms the presence of magnetically nonequivalent protons upon coordination to platinum. Structural data of N(SO2quin)dpa (L1), N(SO2azobenz)dpa (L2) and PtCl2(N(SO2quin)dpa) confirmed the formation of the desired compounds. Time-dependent density functional theory calculations suggested that the excitation of L1 show quin-unit-based π⟶π∗ excitations (i.e., ligand-centered charge transfer, LC), while C1 shows the metal-ligand-to-ligand charge-transfer (MLLCT) character. L1 displays intense fluorescence from the 1LC excited state, while C1 gives phosphorescence from the 3LC state. Mammalian cell toxicity of ligands and complexes was assessed with NCI–H292 nonsmall-cell lung cancer cells. Further, C1 and C2 showed significantly low IC50 values compared with N(SO2azobenz)dpa and PtCl2(N(SO2quin)dpa). Fluorescence imaging data of both ligands and complexes revealed the potential fluorescence activity of these compounds for biological imaging. All four compounds are promising novel candidates that can be further investigated on their usage as potential anticancer agents and cancer cell imaging agents.","PeriodicalId":8914,"journal":{"name":"Bioinorganic Chemistry and Applications","volume":" ","pages":"7821284"},"PeriodicalIF":3.8,"publicationDate":"2022-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9489406/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33477538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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