New Journal of Chemistry最新文献

{"title":"ANRORC-type reactions of azolo[1,5-a]pyrimidine-6-carbonitriles with O- and N-nucleophiles†","authors":"Semen V. Aminov, Victor V. Fedotov, Konstantin V. Savateev, Artyom O. Neymash, Evgeny N. Ulomsky, Pavel A. Slepukhin and Vladimir L. Rusinov","doi":"10.1039/D5NJ00255A","DOIUrl":"https://doi.org/10.1039/D5NJ00255A","url":null,"abstract":"<p >Azolo[1,5-<em>a</em>]pyrimidines represent an important class of nitrogen-containing heterocycles due to a wide range of useful properties. In this work, we have investigated in detail the ANRORC-type reactions for aryl-azolo[1,5-<em>a</em>]pyrimidine-6-carbonitriles and their benzannelated analogs initiated by treatment with <em>O</em>- and <em>N</em>-nucleophiles. The reactivity of the starting azolopyrimidines was studied, and the proposed mechanisms were confirmed by DFT-calculations.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8627-8631"},"PeriodicalIF":2.7,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140069","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}

{"title":"Novel aza-BODIPY-carborane conjugates: synthesis and characterization†","authors":"Andrei V. Zaitsev, Alexander F. Smol’yakov, Elena G. Kononova and Valentina A. Ol'shevskaya","doi":"10.1039/D5NJ01231G","DOIUrl":"https://doi.org/10.1039/D5NJ01231G","url":null,"abstract":"<p >With the objective of preparing efficient photo/radiosensitizers for PDT and BNCT, a synthetic approach was developed for the introduction of carborane clusters into the aza-BODIPY core based on the S<small>_N</small>Ar substitution reaction of <em>para</em>-fluorine atoms in 1,7-dipentafluorophenyl-3,5-diphenyl-4,4-difluoro-4-bora-3<em>a</em>,4<em>a</em>,8-triaza-<em>s</em>-indacene with mercapto-carborane. The possibility for the synthesis of boron-enriched (33%) aza-BODIPYs was also demonstrated starting from the reaction of corresponding aza-dipyrromethenes with carborane <em>S</em>-nucleophile, followed by complexation with BF<small>₃</small>·OEt<small>₂</small>. The new compounds were characterized <em>via</em><small>¹</small>H-NMR, <small>¹¹</small>B-NMR, <small>¹⁹</small>F-NMR, UV-vis, FTIR and mass spectrometry. The crystal structures of the key aza-BODIPY-carborane conjugates were determined <em>via</em> single-crystal X-ray diffraction.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 9035-9042"},"PeriodicalIF":2.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140017","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}

{"title":"Synthetic, biological and physiological identity of green cobalt oxide nanosponges engineered for multidrug-resistant pathogenic bacteria†","authors":"Tuba Tariq, Iftikhar Ahmed, Muhammad Mahmood Ahmed, Shafiq Ahmad, Riffat Batool, Sobia Tauheed, Muhammad Shabir, Ghazala Mustafa and Murtaza Hasan","doi":"10.1039/D5NJ00815H","DOIUrl":"https://doi.org/10.1039/D5NJ00815H","url":null,"abstract":"<p >The combination of nanoscale drug carriers and LOX-targeting strategies offers a multifaceted approach to effectively combat bacterial infections, potentially overcoming the challenges associated with traditional antibiotic therapies. The cobalt nano-precipitates underwent a straightforward transformation into fine nano-sponges, facilitated by green reduction using <em>Withania coagulans</em>. The functional nano-sponges were thoroughly characterized using UV-visible spectroscopy, X-ray diffraction analysis and SEM. Thermogravimetric analysis (TGA) and zeta potential measurements were conducted to assess the thermal stability of the synthesized Co<small>₃</small>O<small>₄</small> NS. <em>P. aeruginosa</em> bacterial inhibition with SL Co<small>₃</small>O<small>₄</small> NS showed 52%, 68% and 78.9% enhanced activity compared to the control at concentrations of 10 mg mL<small>⁻¹</small>, 20 mg mL<small>⁻¹</small> and 40 mg mL<small>⁻¹</small>, respectively. However, DL Co<small>₃</small>O<small>₄</small> NS showed 94.7% and 84.2% inhibition at 10 mg mL<small>⁻¹</small> and 20 mg mL<small>⁻¹</small>, respectively, with a 10% increase in activity compared to the control. Similarly, DL Co<small>₃</small>O<small>₄</small> NS showed earlier inhibition of the LOX enzyme compared to Co<small>₃</small>O<small>₄</small> NS and the drug alone. These nano-sponges contributed to the development of a synergistic approach to drug delivery, where the cobalt oxide nano-sponges (Co<small>₃</small>O<small>₄</small> NS) were functionalized with antimicrobial agents, specifically diclofenac and streptomycin, to target and inhibit LOX expansion.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8991-9002"},"PeriodicalIF":2.7,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140014","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}

{"title":"A bifunctional urea catalyst enables controlled/living ring-opening polymerization: access to various polyesters†","authors":"Yaling Yin, Shuyuan Luo, Zhenjiang Li, Jin Huang and Kai Guo","doi":"10.1039/D5NJ00933B","DOIUrl":"https://doi.org/10.1039/D5NJ00933B","url":null,"abstract":"<p >The development of bifunctional catalysts for synergistic catalysis has emerged as a key strategy for achieving precise polymer synthesis, particularly for challenging ring-opening polymerizations (ROP). We introduce a series of bifunctional catalysts designed for the controlled/living ROP of <small>L</small>-lactide (LLA) and other cyclic monomers. By combining hydrogen-bond donor groups with bio-based Lewis base anions, these catalysts achieve synergistic activation of both monomers and initiators. The catalytic system demonstrates high efficiency, excellent selectivity, and precise control over molecular weight, leading to a narrow dispersity (<em>Đ</em><small>_M</small> &lt; 1.20) across varied monomer-to-initiator ratios. The versatility of these catalysts extends to the polymerization of other monomers such as trimethylene carbonate (TMC) and δ-valerolactone (VL), showing similarly controlled outcomes. Mechanistic investigations using NMR titration reveal that the activation of monomers and initiators through cooperative hydrogen bonding is a key factor driving the high performance. This study provides valuable insights into catalyst design for ROP, offering a promising pathway for sustainable and efficient polymer synthesis.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8923-8930"},"PeriodicalIF":2.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140006","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}

{"title":"Cation tuning in anionic framework hydroborates: tailored deep-ultraviolet optical crystals with large birefringence†","authors":"Yansheng Jiang, Hangwei Jia, Wenhu Wang, Muhammad Arif, Xiuling Yan and Xueling Hou","doi":"10.1039/D5NJ01198A","DOIUrl":"https://doi.org/10.1039/D5NJ01198A","url":null,"abstract":"<p >Birefringent crystals are important optical crystals that have the ability to modulate the polarization of light. It is difficult to achieve the development of modern deep-ultraviolet (DUV) optics. It is urgent to develop DUV birefringent crystals with excellent performance due to the fact that DUV birefringent crystals are relatively rare. Boron–oxygen group systems are the first choice for birefringent materials due to their excellent micro-optical properties and structural diversity. However, eliminating the dangling bonds of terminal oxygen atom and promoting the cutoff edge of borate materials to the DUV region is still a challenge. It has been found that the introduction of hydroxyl groups can effectively eliminate the dangling bonds of terminal oxygen atom and promote the cutoff edge to the DUV region. Here, four DUV metal hydroxyborates with suitable birefringence, <strong>LiB<small>₅</small>O<small>₇</small>(OH)<small>₂</small></strong><strong>(NH<small>₄</small>)<small>₂</small>B<small>₁₀</small>O<small>₁₄</small>(OH)<small>₄</small>·H<small>₂</small>O</strong>, <strong>(NH<small>₄</small>)<small>_0.5</small>K<small>_1.5</small>B<small>₁₀</small>O<small>₁₄</small>(OH)<small>₄</small>·H<small>₂</small>O</strong> and <strong>(NH<small>₄</small>)<small>_0.7</small>Cs<small>_1.3</small>B<small>₁₀</small>O<small>₁₄</small>(OH)<small>₄</small>·H<small>₂</small>O</strong>, were successfully synthesized <em>via</em> a high-temperature solution method. <strong>LiB<small>₅</small>O<small>₇</small>(OH)<small>₂</small></strong> and <strong>(NH<small>₄</small>)<small>₂</small>B<small>₁₀</small>O<small>₁₄</small>(OH)<small>₄</small>·H<small>₂</small>O</strong> exhibit short UV cutoff edges (&lt;200 nm) and suitable birefringence (0.077/0.054@546 nm). Theoretical results indicate that the optical properties of these compounds are mainly determined by the <strong>[B<small>₅</small>O<small>₇</small>(OH)<small>₂</small>]</strong> or <strong>[B<small>₁₀</small>O<small>₁₄</small>(OH)<small>₄</small>]</strong> anionic groups and their arrangement in the structure. The introduction of hydroxyborate groups is an effective way to design and synthesize crystals for DUV optical crystals.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8908-8913"},"PeriodicalIF":2.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140132","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}

{"title":"Fe3O4-loaded carbon nanotubes to enhance electromagnetic shielding of PAM/L hydrogels†","authors":"Hongwei Wang, Yuhuan Xu, Teng Zhou, Kunlan Diao, Xuebin Long, Daohai Zhang and Shuhao Qin","doi":"10.1039/D5NJ01366F","DOIUrl":"https://doi.org/10.1039/D5NJ01366F","url":null,"abstract":"<p >Carbon nanotubes (CNTs) are common fillers, but their nanoscale radial size still offers great potential for processability. In this study, the mechanical strength and electrical conductivity of hydrogels were significantly improved by modulating the introduction strategies of CNTs and Fe<small>₃</small>O<small>₄</small>@CNTs, followed by synergistic interaction with Linum fiber (L). The results showed that the maximum compressive strength of the prepared hydrogel PAM/L/4-CNTs reached 17.82 kPa, and the electrical conductivity of PAM/L/6-CNTs reached 2.91 S m<small>⁻¹</small>. In addition, the interfacial polarisation effect enhanced the electromagnetic shielding (EMI) performance, with an average shielding effectiveness (SET) of 43.29 dB for PAM/L/6-CNTs, while the SET of Fe<small>₃</small>O<small>₄</small>@CNTs reached 41.52 dB at 4 wt%. All samples exhibited an absorption mechanism for electromagnetic shielding.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8632-8638"},"PeriodicalIF":2.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140070","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}

{"title":"AgBr-garlic peel QD system: a promising composite for simultaneous degradation of a binary mixture of cationic and anionic dyes","authors":"Bosely Anne Bose, Abhijit Saha, Ange Nzihou and Nandakumar Kalarikkal","doi":"10.1039/D5NJ00463B","DOIUrl":"https://doi.org/10.1039/D5NJ00463B","url":null,"abstract":"<p >The conversion of waste into value-added products is a key focus of modern research. In this study, we synthesized nitrogen (N) and sulfur (S) co-doped carbon quantum dots (CQDs) from garlic peel using a hydrothermal method and incorporated them into silver bromide (AgBr) to enhance the photocatalytic efficiency. The AgBr–QD composite was prepared with QD concentrations of 1, 5, 10, 20, and 30 wt%, and the 20 wt% QD composite exhibited the highest photocatalytic activity. Under visible light irradiation, this optimized composite achieved 92.4% degradation of a dye-contaminant mixture within 15 minutes. The improved performance was attributed to enhanced charge separation and reduced electron–hole recombination, as confirmed by radical trapping experiments, which identified holes as the primary active species in the photodegradation. These findings suggest that garlic peel-derived QDs can significantly enhance the efficiency of AgBr-based photocatalysts for wastewater treatment.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8957-8968"},"PeriodicalIF":2.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140010","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}

{"title":"Bimetallic–organic framework-derived Co–ZnO grown on carbon nanofibers as a bifunctional electrocatalyst for rechargeable Zn–air batteries†","authors":"Xiaolan Wang, Shaoshuai Xu, Jie Bai, Xingwei Sun and Chunping Li","doi":"10.1039/D5NJ00965K","DOIUrl":"https://doi.org/10.1039/D5NJ00965K","url":null,"abstract":"<p >For rechargeable Zn–air batteries (ZABs), developing bifunctional electrocatalysts for the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) with cost-effectiveness, excellent performance, and high stability is of critical importance. Co–ZnO grown on carbon nanofibers (named Co–Zn/CNFs-2) has been synthesised as a highly active bifunctional electrocatalyst for ZABs by electrospinning combined with <em>in situ</em> growth of a bimetallic organic framework and subsequent carbonization. The as-prepared Co–Zn/CNFs-2 catalyst exhibited remarkable bifunctional catalytic activity (288 mV at 10 mA cm<small>⁻²</small> for the OER and a half-wave potential of 0.816 V for the ORR in an alkaline electrolyte). In addition, a ZAB employing Co–Zn/CNFs-2 as the air cathode delivered a considerable power density of 318.22 mW cm<small>⁻²</small> and a specific capacity of 840.88 mA h g<small>⁻¹</small> (10 mA cm<small>⁻²</small>). Moreover, the cycling stability test showed almost no change in the voltage window after 1000 h of cycling at 5 mA cm<small>⁻²</small>, indicating its considerable potential for application in advanced bifunctional electrocatalysis of ZABs.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8947-8956"},"PeriodicalIF":2.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140009","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}

{"title":"Modulation of acidic–basic and metal–carrier interactions in CO2-assisted propane dehydrogenation over Ga2Lax/ZSM-5 catalysts†","authors":"Xiude Peng, Xiaohua Cao, Huaiyu Xu, Ruibin Xiong, Dedong He, Dingkai Chen and Yongming Luo","doi":"10.1039/D5NJ00776C","DOIUrl":"https://doi.org/10.1039/D5NJ00776C","url":null,"abstract":"<p >CO<small>₂</small>-ODHP has been demonstrated to be an effective technology for the production of propylene. CO<small>₂</small> acts as a soft oxidizer that reduces over-oxidation of hydrocarbons and improves propylene selectivity. However, CO<small>₂</small>-ODHP still faces the challenge of rapid catalyst deactivation due to coke accumulation at elevated operating temperatures. Herein, we prepared a La-modified Ga/ZSM-5 catalyst, in which La modified the acidic–basic properties of Ga/ZSM-5 and improved the resistance to coke accumulation of the catalyst. The synthesized Ga<small>₂</small>La<small>₁</small>/ZSM-5 catalyst achieved propane conversion up to 80% at 580 °C. <em>In situ</em> DRIFTS analysis revealed that the addition of La could significantly accelerate the formation of HCOO* intermediates, which further improved the efficiency of the CO<small>₂</small>-ODHP reaction.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8867-8876"},"PeriodicalIF":2.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140128","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}

{"title":"Injectable bioactive wood-collagen nanocomposites for enhanced skin regeneration†","authors":"Qi Wang, Huiyu Yan, Biyang Ling, Wenhua Li and Jianxi Xiao","doi":"10.1039/D5NJ00644A","DOIUrl":"https://doi.org/10.1039/D5NJ00644A","url":null,"abstract":"<p >Skin aging is a pervasive concern that profoundly impacts human well-being and quality of life, while also heightening the risk of skin diseases, including skin cancer. Implants offer a promising treatment option for skin aging, but current implants degrade quickly and have low bioactivity, resulting in reduced therapeutic efficacy. This study introduces a novel injectable, long-lasting, highly bioactive collagen-coated nanoparticle implant for skin rejuvenation. The nanowood, produced through delignification, air-assisted superfine grinding, and sieving, demonstrates excellent injectability. The collagen-coated nanowood implant exhibits remarkable biocompatibility and bioactivity, significantly enhancing the proliferation, adhesion, and migration of human foreskin fibroblast-1 cells. In photoaged mouse skin models, the implant substantially improves dermal density and skin elasticity, creating an environment conducive to fibroblast activity and collagen regeneration. Furthermore, the implant shows excellent biosafety, with no pyrogenic or hemolytic risks. Injectable nanowood implants are a promising approach to skin regeneration with important potential applications in dermatology and tissue engineering.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8856-8866"},"PeriodicalIF":2.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140115","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}