{"title":"Synergistic Ca–Mg Promotion of Ni/γ-Al2O3 Catalysts for Selective Sorbitol Valorization via Aqueous-Phase Reforming","authors":"Mohamad Razlan Md Radzi, Mohd Hizami Mohd Yusoff","doi":"10.1002/slct.74762","DOIUrl":"https://doi.org/10.1002/slct.74762","url":null,"abstract":"<div>\u0000 \u0000 <p>Aqueous-phase reforming (APR) of biomass-derived sorbitol provides a sustainable route for producing value-added oxygenated chemicals. In this study, Ca- and Mg-promoted Ni/γ-Al<sub>2</sub>O<sub>3</sub> catalysts containing 10 wt% Ni and 0.5–5 wt% promoters were synthesized sonochemically and evaluated for sorbitol APR in a batch reactor. The 5Ca–5Mg–10Ni/ Ni/γ-Al<sub>2</sub>O<sub>3</sub> catalyst exhibited the best performance. Under optimized conditions of 280°C, 35 bar, 0.10 mol sorbitol, and 3 h, 94.57% sorbitol conversion and 90.49 mol% total quantified liquid yield were achieved, comprising 30.38 mol% 1,4-butanediol, 20.04 mol% propanal, 18.27 mol% propylene glycol (PG), 12.25 mol% pentanol, and 9.54 mol% ethylene glycol (EG). The enhanced performance was attributed to the synergistic effects of Ca, Mg, and Ni, which promoted multiple reaction pathways. The catalyst retained approximately 73% of its initial activity after five consecutive cycles, demonstrating satisfactory short-term stability.</p>\u0000 </div>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Review on Isatin–Acenaphthoquinone Hybrids: Emerging Multitarget Scaffolds for Antimicrobial and Anticancer Therapy","authors":"Suraiya Khan, Malik Nasibullah","doi":"10.1002/slct.74747","DOIUrl":"https://doi.org/10.1002/slct.74747","url":null,"abstract":"<div>\u0000 \u0000 <p>The emergence of drug resistance and limitations of single-target therapies have increased interest in molecular hybridization as a drug-design strategy. This review focuses on isatin-based hybrid Schiff bases, particularly isatin–acenaphthoquinone hybrids. Both scaffolds exhibit diverse biological activities, including antibacterial, antifungal, antiviral, and anticancer effects. The review summarizes their synthetic approaches, structural features, antibacterial, and anticancer activities, enzyme inhibition, and computational studies, with emphasis on <i>mono</i> -, <i>bis</i>, and <i>tetra</i>-Schiff base frameworks. Structure–activity relationships and the correlation between in- vitro findings and in- silico investigations are also discussed. Overall, the available evidence highlights the potential of isatin–acenaphthoquinone hybridization for developing multifunctional bioactive compounds while identifying current limitations and opportunities for further experimentally validated research.</p>\u0000 </div>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quantum-Engineered Magnesium Phthalocyanine for Multifunctional Optoelectronics: Charge Transfer Dynamics, Topological Features, and Device-Level Integration","authors":"Imen Cherif, Dorsaf Bouazzi, Mostefa Benhaliliba, Charazade-Elj Benouis, Ahmed Bouriche, Sahbi Ayachi","doi":"10.1002/slct.74759","DOIUrl":"https://doi.org/10.1002/slct.74759","url":null,"abstract":"<p>Magnesium phthalocyanine (MgPc) is investigated as an organic semiconductor through a combined theoretical and experimental approach. Density functional theory (DFT) and time-dependent DFT calculations reveal a moderate HOMO-LUMO gap (2.16 eV), pronounced π→π* and intramolecular charge-transfer transitions, and a low exciton binding energy (0.345 eV), indicating favorable charge separation. Topological and wavefunction analyses (QTAIM, ELF, LOL, RDG-NCI, and Hirshfeld surfaces) elucidate the coexistence of ionic Mg–N coordination and stabilizing non-covalent interactions that support charge transport and exciton delocalization. Experimentally, MgPc thin films prepared by spin coating and thermal evaporation were integrated into Ag/MgPc/n-GaAs/Au-Ge heterojunction diodes. Optical measurements show broad visible absorption and high near-infrared transmittance, with an experimental optical bandgap of 2.94 eV, while current–voltage characteristics confirm rectifying diode behavior. These results demonstrate that MgPc combines tunable electronic structure with functional device performance, highlighting its potential for optoelectronic and photovoltaic applications.</p>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/slct.74759","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jyoti Kuchhadiya, Jignesh H. Kamdar, Gautam Kumar Dhuda, Khushal Kapadiya
{"title":"Catalyst-Free Synthesis of 9H-Fluorene-Based Petasis Borono–Mannich Adducts: Design, Optimization, Anti-Inflammatory Activity, and Molecular Docking Studies","authors":"Jyoti Kuchhadiya, Jignesh H. Kamdar, Gautam Kumar Dhuda, Khushal Kapadiya","doi":"10.1002/slct.74779","DOIUrl":"https://doi.org/10.1002/slct.74779","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, we report a catalyst-free Petasis Borono–Mannich approach for the efficient synthesis of novel 9<i>H</i>-fluorene-based alkyl-amino derivatives with potential anti-inflammatory activity. The reaction, involving 2-fluorenecarboxaldehyde, various secondary amines, and substituted boronic acids, was optimized using 1,4-dioxane and molecular sieves at 90°C, affording a series of compounds <b>(4a–4o)</b> in excellent yields. Biological evaluation via bovine serum albumin (BSA) denaturation assay revealed promising anti-inflammatory activity, with compound <b>4o</b> (IC<sub>50</sub> = 13.02 µM) showing efficacy comparable to diclofenac sodium (IC<sub>50</sub> = 12.11 µM). Structure–activity relationship (SAR) analysis indicated <i>N</i>-methylpiperazine and electron-donating aryl boronic acids as key contributors to potency. Molecular docking against COX-1 identified compound <b>4o</b> as having the most favorable predicted docking score (−10.2 kcal/mol). Additionally, 100 ns molecular dynamics simulation of the lead 1EQG–<b>4o</b> complex provided further insight into its conformational behavior and residue-level flexibility under dynamic conditions. Preliminary in silico ADMET assessment indicated generally favorable absorption-related properties across the series, while also identifying potential toxicity liabilities that require experimental validation.</p>\u0000 </div>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RETRACTION: Intermolecular Interactions Between Nitrosourea and Polyoxometalate Compounds","authors":"","doi":"10.1002/slct.74709","DOIUrl":"https://doi.org/10.1002/slct.74709","url":null,"abstract":"<p><b>RETRACTION</b>: M. D. Mohammadi, F. Abbas, H. Louis, L. E. Afahanam and T. E. Gber, “Intermolecular Interactions between Nitrosourea and Polyoxometalate compounds,” <i>ChemistrySelect</i> 7, no. 36 (2022): e202202535, https://doi.org/10.1002/slct.202202535</p><p>The above article, published online on 22 September 2022 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal Editor-in-Chief, Jos Lenders; the publishing Chemistry Europe societies; and Wiley-VCH GmbH.</p><p>Following publication, the editorial team identified concerns affecting the results presented in this article. An investigation identified deficiencies in the descriptions of the figures and of the data presented in Table 3, and other errors within the article. These flaws substantially affect the comprehensibility of the presented research.</p><p>The authors were asked to comment on the concerns raised and to provide the original data supporting the reported results but did not respond. As the findings could not be verified, the conclusions of this article are considered unreliable.</p><p>The authors have been informed of the decision to retract.</p>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/slct.74709","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. B. Ghatge, K. D. Patil, S. A. Arvindekar, K. P. Haval, P. B. Choudhari
{"title":"Microwave-Assisted Grafting of Mucuna pruriens Gum as a Sustained-Release Modifying Polymer for Ibuprofen Tablets","authors":"K. B. Ghatge, K. D. Patil, S. A. Arvindekar, K. P. Haval, P. B. Choudhari","doi":"10.1002/slct.74335","DOIUrl":"https://doi.org/10.1002/slct.74335","url":null,"abstract":"<div>\u0000 \u0000 <p>Natural polysaccharides are potential excipients for controlled drug delivery. However, their pharmaceutical application is often limited due to poor swelling behavior and poor matrix-forming ability. The present work deals with the chemical modification of the gum of <i>Mucuna pruriens</i> by microwave assisted acrylamide graft polymerization for the development of novel sustained release matrix polymer for ibuprofen tablets. Design of Experiments (DoE) is used for optimizing the grafting process and the optimized polymer is characterized by suitable methods. The successful graft polymerization was supported by GPC analysis that showed an increase in the molecular weight from Mn 1,168 g/mol and Mw 1,230 g/mol for native <i>Mucuna pruriens</i> gum to Mn 1.72 × 10<sup>6</sup> g/mol and Mw 5.16 × 10<sup>6</sup> g/mol for AAm-g-MPG with the increase in polydispersity index from 1.053 to 2.994. FTIR and solid-state 13C NMR confirm the incorporation of acrylamide, while DSC, PXRD and SEM show improved thermal stability, reduced crystallinity and the formation of a porous morphology. The wet-granulated formulation limits ibuprofen release to 51.21% after 12 h, compared with 60.0% for direct compression, 80.2% and 83.0% for native gum, and 95.0% and 95.5% for HPMC formulations, establishing AAm-g-MPG as a promising polymer for sustained oral drug delivery.</p>\u0000 </div>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coumarin-Benzimidazole Hybrids as Multitarget Scaffolds for Antileishmanial Drug Discovery","authors":"Fernanda Melo Jucá, Damião Sampaio de Sousa, Caio Henrique Alexandre Roberto, Márcia Machado Marinho, Emmanuel Silva Marinho","doi":"10.1002/slct.74741","DOIUrl":"https://doi.org/10.1002/slct.74741","url":null,"abstract":"<p>Leishmaniasis is a globally distributed zoonosis and a major challenge to public health, with increasing incidence and limited therapeutic options marked by toxicity and emerging resistance. Aiming to identify safer and more effective alternatives for disease control, this study evaluated the antileishmanial potential of coumarin-benzimidazole hybrids through structure-based virtual screening, targeting two essential enzymes of <i>Leishmania</i> spp., Cathepsin B (CatB), and N-myristoyltransferase (NMT). Molecular docking simulations revealed higher binding affinities for all hybrids compared with the reference drug miltefosine (MTF), with CBZ2 and CBZ3 showing the strongest interactions with CatB and NMT, respectively. Molecular dynamics simulations (200 ns) confirmed the conformational stability of these complexes, supported by Root-mean-square deviation (RMSD)/Root-mean-square fluctuation (RMSF) analyses and persistent hydrogen bonds. MM/GBSA calculations further indicated favorable binding free energies. Additionally, CBZ2 and CBZ3 presented a favorable balance between permeability and lipophilicity, suggesting adequate passive membrane diffusion and a viable predicted pharmacokinetic profile. These findings highlight coumarin-benzimidazole hybrids as promising candidates for future antileishmanial drug development research.</p>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/slct.74741","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Oskay Kahraman, Pınar Küce Cevik, Ersan Turunc, Riza Binzet
{"title":"Green Synthesis of Starch Nanoparticles Using Endemic Alyssum giosnanum Extract: Structural Characterization and Antioxidant, Antimicrobial, and Photocatalytic Applications","authors":"Oskay Kahraman, Pınar Küce Cevik, Ersan Turunc, Riza Binzet","doi":"10.1002/slct.74666","DOIUrl":"https://doi.org/10.1002/slct.74666","url":null,"abstract":"<div>\u0000 \u0000 <p>Starch nanoparticles (SNPs) have attracted attention as sustainable nanomaterials, owing to their biodegradability, biocompatibility, and versatile application potential. In this study, SNPs were synthesized via a green approach using the endemic Turkish plant <i>Alyssum giosnanum</i>. The synthesized nanoparticles were characterized by XRD, FTIR, SEM, and zeta potential analyses to evaluate their structural and physicochemical properties. The SNPs exhibited an average particle size of 54.52 nm and a zeta potential of −20.5 mV, indicating good colloidal stability. XRD confirmed that the native A-type crystalline structure of starch was preserved after nanoparticle formation, while SEM revealed the transformation of starch granules into nanosized particles. The SNPs showed a water absorption capacity of 1.25 g/g and an oil absorption capacity of 0.61 g/g. Moderate antioxidant activity was observed in free radical scavenging assays. Antimicrobial evaluation demonstrated inhibition zones of 12.3, 14.4, 17.6, and 14.4 mm against <i>Escherichia coli, Pseudomonas aeruginosa, Enterobacter aerogenes</i>, and <i>Candida albicans</i>, respectively, with corresponding MIC<sub>99</sub> values of 304.87, 279.39, 244.19, and 222.65 µg/mL. Furthermore, under UV irradiation in the presence of H<sub>2</sub>O<sub>2</sub>, the SNPs achieved photocatalytic degradation efficiencies of 90.14% for methylene blue and 83.21% for rhodamine B, outperforming native starch and highlighting their potential as multifunctional nanomaterials.</p>\u0000 </div>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mayur J. Nath, Shubham R. Choudhury, Priyanka, Yukta Mukhi, Ajit K. Singh, Kasturi Saloi, Vandan Nagar, Rohini Muthuswani, Sanjay K. S. Patel, Manabendra Mandal
{"title":"Inhibitory Assessment of Centella asiatica-based Endophytic Bacillus pumilus Extract on Biofilm and Quorum Sensing of Pseudomonas aeruginosa","authors":"Mayur J. Nath, Shubham R. Choudhury, Priyanka, Yukta Mukhi, Ajit K. Singh, Kasturi Saloi, Vandan Nagar, Rohini Muthuswani, Sanjay K. S. Patel, Manabendra Mandal","doi":"10.1002/slct.74757","DOIUrl":"https://doi.org/10.1002/slct.74757","url":null,"abstract":"<div>\u0000 \u0000 <p>Endophytes are ubiquitous across nearly all plant species, exhibit rich biodiversity, and serve as a vital source of natural bioactive compounds that can be used as alternatives to antibiotics. In this study, <i>Centella asiatica</i>-based endophyte MM02, identified as <i>Bacillus pumilus</i>, was examined for antimicrobial activity against various pathogens and for its potential to inhibit <i>Pseudomonas aeruginosa</i> biofilm formation and quorum-sensing (QS)-regulated virulence. The compositional analysis of the MM02 crude extract revealed the presence of diverse bioactive compounds, as validated by biochemical and chromatographic analyses with potential plant-growth-promoting, antimicrobial, anti-biofilm, and anti-QS properties. The extract inhibits biofilm and exopolysaccharide formation in a dose-dependent manner, up to 87.8%, and various QS-dependent and virulence activities, up to 85.3%. Microscopy, virulence gene expression, and <i>in-silico</i> analyses successfully validated biofilm and QS inhibition in <i>P. aeruginos</i>a. These findings demonstrate that a novel endophytic <i>B. pumilus</i> extract enriched in biomolecules can be used to treat <i>P. aeruginosa</i> as a sustainable alternative to antibiotics.</p>\u0000 </div>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anup D. Vadodariya, Savan S. Bhalodiya, Chirag D. Patel, Shana Balachandran, Madan Kumar Arumugam, Hitendra M. Patel
{"title":"[BMIM]OAc-Mediated One-Pot Synthesis of Pyrazolo[4,3-a]acridines and Their Pharmaceutical Evaluations","authors":"Anup D. Vadodariya, Savan S. Bhalodiya, Chirag D. Patel, Shana Balachandran, Madan Kumar Arumugam, Hitendra M. Patel","doi":"10.1002/slct.74697","DOIUrl":"https://doi.org/10.1002/slct.74697","url":null,"abstract":"<div>\u0000 \u0000 <p>An environmentally friendly one-pot synthesis of pyrazolo[4,3-<i>a</i>]acridine derivatives 4(a–o) has been developed using 1-butyl-3-methylimidazolium acetate ([BMIM]OAc) as a green and recyclable catalyst in ethanol under reflux conditions. The reaction between 5-aminoindazole, dimedone, and various isatin derivatives resulted in high yields (84%–96%) of the desired compounds within short reaction times. Structural characterization was achieved using NMR and mass spectrometry. The synthesized compounds were evaluated for antimicrobial and anticancer activities. Compounds 4e, 4k, and 4n exhibited strong antibacterial and antifungal effects, with zones of inhibition comparable to standard drugs. Additionally, compounds 4c, 4e, 4k, and 4m demonstrated potent cytotoxicity against MDA-MB-231, MCF-7, and SiHa cancer cell lines, with IC<sub>50</sub> values close to that of paclitaxel. These findings suggest that the synthesized pyrazolo[4,3-<i>a</i>]acridines are promising scaffolds for future antimicrobial and anticancer drug development.</p>\u0000 </div>","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"11 38","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}