Results in Chemistry最新文献

{"title":"Novel 1,2,3-triazole derivatives containing benzoxazinone scaffold: Synthesis, docking study, DFT analysis and biological evaluation","authors":"Vidya Sagar Reddy Avuthu ,&nbsp;Tejeswara Rao Allaka ,&nbsp;Mohd Afzal ,&nbsp;Pilli Veera Venkata Nanda Kishore ,&nbsp;Srinivasadesikan Venkatesan ,&nbsp;Pratik Rameshchandra Patel","doi":"10.1016/j.rechem.2024.101800","DOIUrl":"10.1016/j.rechem.2024.101800","url":null,"abstract":"<div><div>In order to address the drastic demand for novel broad-spectrum antibacterial and anticancer medicines with enhanced activity, computer modelling was utilized to rationally develop newer anticancer triazole based drugs. A unique series of benzo[d][1,3]oxazin-4-one linked 1,2,3-triazoles was synthesised in five steps, with good yields and an assessment of their antibacterial and anticancer activities. IR spectroscopy, ¹H NMR, ¹³C NMR, and mass spectrometry were used to characterize the synthesis of triazole compounds. From antibacterial screening, the prepared derivatives namely, 8a, 8e, 8h and 8k showed excellent inhibitory potential against S. aureus with ZI of 28 ± 0.48, 30 ± 0.42, 30 ± 0.11, 35 ± 0.23 mm respectively, compared to moxifloxacin (33 ± 0.15 mm). Compared to doxorubicin (IC₅₀ = 2.45 ± 0.14 μM), compounds 8h and 8k demonstrated superior and exceptional cytotoxicity against the A549 cell line (IC₅₀ = 2.30 ± 0.26 and 1.90 ± 0.30 μM, respectively). Latter All the derivatives were further subjected to <em>in silico</em> docking studies against human lung (PDB: 2P85), VEGFR2 kinase domain (PDB: 3CP9) and could serve as ideal leads for additional modification in the field of anticancer research. Based on docking results, 8e showed that the amino acids Arg³⁷³(A), Gly¹¹³(A), Glu¹⁰³(A), Asp¹⁰⁸(A), Ser¹¹⁹(A), Asn³⁷⁵(A), Val³⁷⁴(A), Lys³⁸⁷(A), and Asn¹²⁰(A) exhibited highly stable binding to cytochrome P4502A13 receptor of lung cancer. Furthermore, Density Functional Theory (DFT) calculations are performed to support the molecular docking studies. Compounds 8e, 8h, and 8k were discovered to have estimated energy gaps (eV) of 3.181, 4.034, and 3.539 eV, respectively. Triazole 8h exhibited the lowest chemical hardness (1.962 eV) and the highest chemical softness (0.252 eV), which also suggests that it is more reactive than all the other compounds under study. Moreover, these scaffolds physicochemical characteristics, filtration molecular properties, assessment of toxicity, and bioactivity scores were assessed in relation to ADME (absorption, distribution, metabolism, and excretion). In conclusion, we discovered a novel benzoxazinone linked 1,2,3-triazoles with promising antimicrobial and anticancer activity and a favorable pharmacokinetic profile.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101800"},"PeriodicalIF":2.5,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S221171562400496X/pdfft?md5=a15bc0832e8fc4acf11e794d7ef1e87b&pid=1-s2.0-S221171562400496X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142311254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amine-functionalized cellulose-silica composites for the remediation of hexavalent chromium (Cr IV) in contaminated water","authors":"Mayenzeke Trueman Mazibuko ,&nbsp;Stanley Chibuzor Onwubu ,&nbsp;Phumlane Selby Mdluli ,&nbsp;Vimla Paul ,&nbsp;Mokhena Clement Teboho ,&nbsp;Mokhothu Thabang","doi":"10.1016/j.rechem.2024.101796","DOIUrl":"10.1016/j.rechem.2024.101796","url":null,"abstract":"<div><div>Adsorption method for Hexavalent chromium (Cr(VI) removal from domestic and industrial wastewater is widely desirable due to public health concern of the heavy metal. The purpose of this study was to investigate the evaluation of Cr(VI) adsorption using a novel adsorbent: amine-functionalized cellulose-silica composite derived from banana fibers. We employed the in-situ sol–gel method to create cellulose-silica silane functionalized composites, analyzing them through different characterization techniques such as Attenuated total reflectance- Fourier transform infrared spectroscopy (ATR-FTIR), X-ray Diffraction Analysis (XRD), Thermo gravimetric analysis (TGA)/differential thermogravimetric (DTG), Brunauer–Emmett–Teller (BET), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM) techniques. ATR-FTIR depicted key organic constituents in raw banana pseudo stem fibers (BF) and the formation of Si<img>O bonds in BC<img>SiO₂ composite, and further enhanced by the grafting of N-[3-(trimethoxysilyl)propyl ethylenediamine (DAPTMS) onto the BC-SiO₂ surface in BC-SiO₂-DAPTMS. XRD and TGA/DTG analyses revealed changes in crystallinity and thermal stability, while BET analysis showcased altered surface area and pore characteristics in BC-SiO₂-DAPTMS (2 %). SEM and TEM imaging provided visual evidence of structural modifications and improved dispersion in BC-SiO₂-DAPTMS composites. The impact of composite weight, contact time, and pH on Cr(VI) removal rates was examined, revealing optimal performance at slightly acidic pH 4 value (80.7 %) and enhanced efficiency with increased contact time of 65 min (86.66 %), composite weight of 1 g (82.62 %), and initial concentration was for 0.8 mg/l (80 %). The kinetics and isotherms analyzed using pseudo second order (PSO) and pseudo first order (PFO) models, highlight the composite’s efficiency. The Freundlich model was found to better fit the adsorption isotherm data, while the PSO model described the kinetics more accurately. These insights contribute to optimizing the BC-SiO2-DAPTMS (2 %) composite for efficient Cr(VI) ion removal in water treatment applications.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101796"},"PeriodicalIF":2.5,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142319897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pyrazole-based N-phenyl pyrazolines: Synthesis, docking, and pharmacological evaluation","authors":"Nargisbano A. Peerzade ,&nbsp;Shravan Y. Jadhav ,&nbsp;Raghunath B. Bhosale ,&nbsp;Vijay H. Masand ,&nbsp;Rakhi G. Gawali ,&nbsp;Sami A. Al-Hussain ,&nbsp;Aamal A. Al-Mutairi ,&nbsp;Magdi E.A. Zaki","doi":"10.1016/j.rechem.2024.101793","DOIUrl":"10.1016/j.rechem.2024.101793","url":null,"abstract":"<div><div>A series of methoxy substituted pyrazole based pyrazoline derivatives <strong>(4a-j)</strong> were synthesized in good to excellent yield from corresponding pyrazole-chalcones <strong>(3a-j).</strong> All synthesized derivatives were characterized and screened for their <em>in vitro</em> anti-inflammatory, antioxidant, antidiabetic, and antibacterial activities. <strong>Among the series,</strong> compounds <strong>4f,</strong> 4j, 4a, <strong>and 4i</strong> showed better anti-inflammatory activity as compared to diclofenac sodium. In DPPH free radical scavenging assay, all the compounds were shown excellent activity and moderate to good activity in SO and NO free radical scavenging assay as compared to standard ascorbic acid. Antibacterial screening of synthesized pyrazolines showed that compounds <strong>4f</strong> and <strong>4j</strong> have significant antibacterial activity. The compounds <strong>4j, 4f, 4 h, 4a,</strong> and <strong>4</strong>c have shown comparable inhibition of alpha-amylase enzyme leading to good antidiabetic activity as compared to standard acarbose. Molecular docking studies suggest that these compounds have strong binding with COX-2 and alpha-amylase enzyme due to significant capability of aromatic and hydrophobic interaction. The outstanding results of reported compounds in all biological screening will pave the way for the design of new drug candidate bearing pyrazole moiety.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101793"},"PeriodicalIF":2.5,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142319899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, characterization, anticancer activity, molecular docking and DFT calculation of 3-acetylcoumarin thiosemicarbazones and Schiff’s bases","authors":"Anand Kumar Yadav ,&nbsp;Neeta Singh ,&nbsp;Manoj Silwal ,&nbsp;Achyut Adhikari ,&nbsp;Paras Nath Yadav","doi":"10.1016/j.rechem.2024.101794","DOIUrl":"10.1016/j.rechem.2024.101794","url":null,"abstract":"<div><div>The new thiosemicarbazones (3a-d) of 3-acetylumbelliferone and Schiff’s bases (4a-b) of 3-acetylcoumarin were synthesized, characterized by elemental analysis, UV–Vis, FT-IR, NMR, and ESI-HR MS, and evaluated for their anticancer potency against the human breast cancer (MCF-7) cell line. All the tested compounds exhibited good to moderate anticancer efficacy in a dose-dependent manner. The synthesized compounds exhibited potent preferential inhibition effects against the MCF-7 cell line, with IC₅₀ range of 147.8–505.1 µg/mL. The most potent compound, (<em>E</em>)-N-(1-(7-hydroxy-2-oxo-2<em>H</em>-chromen-3-yl) ethylidine)-2,6-dimethylmorpholine-4-carbothiohydrazide <strong>(3c)</strong>, showed significant cytotoxicity with an IC₅₀ value of 147.8 µg/mL against the tested cell line. It showed a higher proportion of cells in G1 (37.21 %) and S (26.86 %) phases and a lower proportion of cells in G2 phase (26.37 %), with respect to control. Molecular docking of all the synthesized compounds with target proteins VEGFR2 and EGFR demonstrated their significant binding affinity and interactions with key residues compared to the reference drug (erlotinib). DFT-based analysis showed that all the compounds have effective reactivity due to the low band gap energy of HOMO and LUMO relative to the reference drug, erlotinib (4.26 eV). The reactivity-related quantum mechanical parameters η, S, χ, μ, and ω indicated that these compounds have a high efficacy towards the target enzymes VEGFR2 and EGFR. All of the synthesized compounds had drug-like action, according to ADMET predictions.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101794"},"PeriodicalIF":2.5,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2211715624004909/pdfft?md5=6ac0d1a4439b47df6982b223bff2d9e9&pid=1-s2.0-S2211715624004909-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142311336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design, synthesis, biological evaluation and molecular docking study of thiadiazole-isatin hybrid analogues as potential anti-diabetic and anti-bacterial agents","authors":"Ghadah Aleid ,&nbsp;Shahzad Ahmad Abbasi ,&nbsp;Hayat Ullah ,&nbsp;Reda Abdel-Hameed ,&nbsp;Asmaa Hegazy ,&nbsp;Gul Mehnaz ,&nbsp;Eshraqa Ali ,&nbsp;Sumayyah Al-Marshedy ,&nbsp;Anoud AlShammari ,&nbsp;Fazal Rahim ,&nbsp;Hidayat Ullah Khan ,&nbsp;Shoaib Khan ,&nbsp;Rashid Iqbal ,&nbsp;Zeeshan Niaz ,&nbsp;Muhammad Taha","doi":"10.1016/j.rechem.2024.101805","DOIUrl":"10.1016/j.rechem.2024.101805","url":null,"abstract":"<div><div>We have synthesized thiadiazole-isatin hybrid analogues (<strong>1</strong>–<strong>20</strong>), characterized through different spectroscopic techniques such as ¹HNMR, ¹³CNMR, HREI-MS, and evaluated against <em>α</em>-glucosidase and <em>α</em>-amylase enzymes. All analogues showed potent inhibitory potentials, having an IC₅₀ values ranged from 22.08 ± 0.09 to 54.03 ± 0.07 μM (against α-amylase) and 19.03 ± 0.04 to 50.03 ± 0.02 μM (α-glucosidase) when compared with the standard drug acarbose (IC₅₀ = 22.07 ± 0.02 μM for α-amylase and IC₅₀ = 18.01 ± 0.06 μM for α-glucosidase respectively). Among the series, analogues <strong>13</strong> (IC₅₀ = 19.03 ± 0.04 and 22.08 ± 0.09 μM), <strong>12</strong> (IC₅₀ = 21.03 ± 0.07 and 24.03 ± 0.07 μM), and <strong>5</strong> (IC₅₀ = 22.02 ± 0.03 and 26.02 ± 0.04 μM) were identified as the most active inhibitors. The structure–activity relationship was carried out, mainly associated with the nature, number, position, and electron-donating and electron-withdrawing effects of the substituent (s) on the phenyl ring. With the help of molecular docking, the binding interaction of the most active analogues within the active site of enzymes was confirmed. Almost twelve compounds were also screened for antibacterial potential, and few were found to be effective against <em>Bacillus subtilis</em>. All compounds were verified for cytotoxicity against the 3 T3 mouse fibroblast cell line and detected non-toxic.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101805"},"PeriodicalIF":2.5,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2211715624005010/pdfft?md5=4b012c3eb333554742ba94272ca81d77&pid=1-s2.0-S2211715624005010-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142311335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification, isolation and structural characterization of forced degradation products of sotorasib using advanced analytical techniques","authors":"Shweta Mishra ,&nbsp;Ashlesha Chauhan ,&nbsp;R. Ramajayam","doi":"10.1016/j.rechem.2024.101799","DOIUrl":"10.1016/j.rechem.2024.101799","url":null,"abstract":"<div><div>Sotorasib is a small molecule inhibitor and approved by USFDA for the treatment of non-small cell lung cancer (NSCLC). In the present study, forced degradation behavior of sotorasib was carried out by utilizing LC-MS/MS technique. As per ICH guidelines, the forced degradation is conducted in various conditions such as acidic, basic, oxidative, thermal and photolytic. A significant degradation was found in acidic, basic and oxidative conditions conversely sotorasib was found relatively stable in thermal and photolytic conditions. In acidic condition, two degradation products such as DP1 and DP3 were isolated. Also, DP3 is the common degradant obtained in both acidic and basic conditions. DP2 is obtained from oxidative conditions. All the isolated degradation products are new and not reported in the literature. All the degradation products are completely characterized by IR, ¹H NMR and mass spectroscopy. In conclusion, the scope of study will certainly useful in the regulatory requirements such as physiochemical stability of sotorasib, pharmacokinetic studies and clinical research related.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101799"},"PeriodicalIF":2.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2211715624004958/pdfft?md5=1546f9707550e675c8ef90c465198348&pid=1-s2.0-S2211715624004958-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142311252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Copper Oxide-Nickel oxide nanocomposites synthesized via Allium cepa peel extract for photocatalytic degradation of methylene blue","authors":"Gamachu Mulatu Mamo,&nbsp;Shibiru Yadeta Ejeta","doi":"10.1016/j.rechem.2024.101801","DOIUrl":"10.1016/j.rechem.2024.101801","url":null,"abstract":"<div><p>Phyto-mediated synthesis of nanomaterials is attractive for its simplicity, non-toxicity, and eco-friendliness. This study focused on synthesizing copper oxide/nickel oxide nanocomposites (Cu-NiO NCs) using <em>Allium cepa</em> peel extract and their efficacy was evaluated against methylene blue (MB) dye degradation. Phytochemical investigation of the plant extract exposed the existence of alkaloids, flavonoids, tannins, phenols, and saponins, which aided in nanoparticle synthesis. Characterization using Ultraviolet Visible (UV–Vis), Fourier transform infra-red (FT-IR), X-ray diffraction (XRD) spectroscopies, and scanning electroscope microscopy (SEM) revealed band gaps of 3.55, 3.38, and 3.02 eV and particle sizes of 6.15, 6.89, and 7.73 nm for NiO NPs, 2 % Cu-NiO NCs, and 5 % Cu-NiO NCs, respectively. Besides, the degradation efficiencies of MB were 86.48 %, 94.92 %, and 97.36 %, using the most optimum catalyst under visible light source in 70 min. Finally, the reusability of the photocatalysts was evaluated in three consecutive cycles, which showed a decrease in degradation efficiency of only 21.58 %, 7.17 %, and 7.95 % for NiO NPs, 2 % Cu-NiO NCs, and 5 % Cu-NiO NCs catalysts, respectively indicating good reusability of the catalysts. The study highlights Cu-NiO NCs as promising photocatalysts for MB dye degradation.</p></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101801"},"PeriodicalIF":2.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2211715624004971/pdfft?md5=23555ee896a464dd5b8fdb95d4d38b54&pid=1-s2.0-S2211715624004971-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142242298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supramolecular blends of C-alkylpyrogallol[4]arenes and polytetrahydrofurans","authors":"Oleg Andrew Kulikov ,&nbsp;Arshad Mehmood ,&nbsp;Sergey Vodzinsky","doi":"10.1016/j.rechem.2024.101804","DOIUrl":"10.1016/j.rechem.2024.101804","url":null,"abstract":"<div><div>A small series of the amphiphilic macrocycles – <em>C</em>-alkylpyrogallol[4]arenes has been synthesized and examined by single crystal X-ray analysis which showed the formation of two supramolecular arrangements depending on solvent used for crystallization, <em>i.e.,</em> multilayered motif and hexameric capsule. Those structural findings provided an insight into blends prepared from aforementioned macrocycles and various polytetrahydrofurans (polyTHFs). Thus, 1:1 wt ratio mixtures were obtained and investigated by combination of Fourier-transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). As it turned out, the viscosity of these blends was increased compared to starting materials, which imply that pyrogallol[4]arenes can be successfully utilized as supramolecular cross-linkers enhancing H-bonding between adjacent macromolecular chains. As the major difference between compounds synthesized is the length and geometry of their respective alkyl side chains attached directly to macrocyclic core, <em>i.e.</em>, <em>n</em>-propyl- and cyclohexyl- <em>vs. n</em>-dodecyl-, it seemed likely that even insignificant increase in their hydrophobicity can induce high order aggregation of nanoparticles in the slurries, thus affecting their viscosity. Overall, material viscoelastic properties are tunable at macroscopic level by choosing particular pyrogallol[4]arene/solvent combination and adjusting the temperature, which may be advantageous for the design of hybrid materials.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101804"},"PeriodicalIF":2.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2211715624005009/pdfft?md5=e43de30dc902b1b3ee68e1ff872748a0&pid=1-s2.0-S2211715624005009-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142316054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative antioxidant and antimicrobial activities of Nigella sativa flower, leaf, stem, and seed derived silver nanoparticles","authors":"Fizza Perveen ,&nbsp;Fakhria A. Al-Joufi ,&nbsp;Rabia Zeb ,&nbsp;Naila Qamar ,&nbsp;Abdul Jabbar ,&nbsp;Muhammad Naveed Umar ,&nbsp;Muhammad Zahoor","doi":"10.1016/j.rechem.2024.101808","DOIUrl":"10.1016/j.rechem.2024.101808","url":null,"abstract":"<div><p>This study was aimed to synthesize biogenic silver nanoparticles (AgNPs) using <em>Nigella sativa (N. sativa)</em> plant extracts as bio-reductant. The fabricated nanoparticles were characterized by UV–visible, FTIR, and XRD. The extracts and AgNPs were then evaluated for their antioxidant and antimicrobial potentials using DPPH (2, 2-diphenyl-1-picrylhydrazyl) assay and agar well diffusion assay correspondingly. The color change from pale yellow to tan brownish confirmed the fabrication of nanoparticles. The broad peak from 420 to 430 in the UV–Visible spectrum also confirmed AgNPs formation. In XRD spectrum the peaks indices (1<!--> <!-->1<!--> <!-->1), (2<!--> <!-->0<!--> <!-->0), (2<!--> <!-->2<!--> <!-->0), and (3<!--> <!-->1<!--> <!-->1) belonging to 2θ values of 38.101, 44.370, 64.179, and 77.549 indicated the presence of silver crystals (JCPDS file no. 00-001-1167). The presence of organic functional groups in the FTIR spectra confirmed the involvement of plant phytochemicals in fabrication of nanoparticles. Comparatively strong antioxidant potential was recorded for silver nanoparticles in comparison to parental extract. The lowest IC50 recorded was in the case flower based AgNPs was 70 µl where it corresponding crude extract resulted in IC50 of 910 µl. Highest IC50 was recorded for stem extract based NPs (100 µl). The antifungal potential of AgNPs from flower was high (24 mm) and that of the stem extract-based NPs was low (19 mm) whereas the antibacterial potential of the stem and seed extract-based extract was comparable however, the leaf and flower-based extract-based NPs were also, substantial. It was concluded from the results that all the whole <em>Nigella sativa</em> plant contained the reductant phytochemicals which be effectively used to fabricate NPs of the desired sizes. The fabricated NPs also exhibited good antioxidant and antimicrobial properties and can be considered as alternative drugs subjected to further verifications of the results in animal model.</p></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101808"},"PeriodicalIF":2.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2211715624005046/pdfft?md5=dc71470e8723e21b98897ff54e9c50f0&pid=1-s2.0-S2211715624005046-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A critical review on sodium benzoate from health effects to analytical methods","authors":"Leila Hejazi ,&nbsp;Mohammad Mahboubi-Rabbani ,&nbsp;Vahideh Mahdavi ,&nbsp;Mehrdad Alemi ,&nbsp;Elham Khanniri ,&nbsp;Maryam Bayanati","doi":"10.1016/j.rechem.2024.101798","DOIUrl":"10.1016/j.rechem.2024.101798","url":null,"abstract":"<div><p>Sodium benzoate (SB) is a salt of benzoic acid that is highly soluble in water, bland, and unscented. It is produced by mixing benzoic acid with sodium hydroxide. Sodium benzoate does not exist organically, yet when combined with water, it creates benzoic acid, which exists natively in particular crops. Because of its antifungal and antibacterial effects, it is used as a food preservative at tightly controlled dosages. Though some research suggests that sodium benzoate is effective in helping alleviate depression, pain, schizophrenia, autism spectrum disorders, and neurodegenerative illnesses, others claim that it is hazardous. It has been shown to produce mutagenesis consequences, oxidative stress, hormone disruption, and decreased fertility. In recent years, there have been worries regarding the growing use of this chemical as a preservative in meals, particularly processed foods. Due to the large number of reports regarding the harmfulness of food additives like sodium benzoate, more and more researchers are increasingly looking for techniques to quantify the quantity of this molecule utilized in foods. High-performance liquid chromatography (HPLC-UV and LC-MS/MS) methods are two examples of instrumental analytical methods that have been developed and validated for quantitative analyses of sodium benzoate in foods and beverages. Obviously, there are numerous other approaches to analyzing these materials. The purpose of this study is to comprehensively discuss the safety profile of sodium benzoate and its potential usefulness, as well as the hazardous effects. Furthermore, we have discussed the ways of determining the quantity and identity of this component in food.</p></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"11 ","pages":"Article 101798"},"PeriodicalIF":2.5,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2211715624004946/pdfft?md5=6d0a0a3fb693281ae14c4dd46db4ee0e&pid=1-s2.0-S2211715624004946-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142242297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}