New Journal of Chemistry最新文献

{"title":"A biocompatible silver-loaded zeolite hydrocolloid dressing with rapid antimicrobial efficacy","authors":"Jinling Liu, Ziwang Che, Jun Shao, Longhui Gong, Zezheng Zhou, Mingxuan Xu, Xinai Yu, Qiuping Qian and Yunlong Zhou","doi":"10.1039/D6NJ00331A","DOIUrl":"https://doi.org/10.1039/D6NJ00331A","url":null,"abstract":"<p >Silver-based dressings remain indispensable for the management of infected wounds, but their clinical utility depends on reconciling rapid antibacterial action with acceptable tissue compatibility. Herein, we report a lipid–hydrocolloid dressing incorporating a silver-exchanged Linde Type A (LTA) zeolite (ZeAg-4%), in which the zeolite framework provides defined ion-exchange sites and spatial confinement for regulated silver availability. ICP-MS analysis showed a silver loading of 14.98 ± 0.04 wt% in the zeolite, while the optimized dressing contained only 52 ± 3 µg cm<small>⁻²</small> silver, substantially lower than the tested commercial silver dressings. Despite this reduced silver loading, The ZeAg-4% produced rapid antimicrobial activity, with no recoverable <em>E. coli</em> after 2 h in the carrier assay and &gt;90% reduction of <em>S. aureus</em> within 4 h. Time-resolved experiments linked recoverable silver concentration with bactericidal kinetics, and additional biofilm, infected-wound, cytocompatibility, irritation, sensitization, and systemic-toxicity evaluations further defined its efficacy and safety profile. These results support zeolite-mediated silver utilization as a practical strategy for developing low-silver-loading antimicrobial dressings with improved safety margins.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 25","pages":" 10459-10472"},"PeriodicalIF":2.6,"publicationDate":"2026-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148336684","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":"Efficient removal of purpurin from pollutants based on interaction with DNA in vitro","authors":"Huimin Xu, Junsheng Li, Guoxia Huang, Liujuan Yan and Ji Ma","doi":"10.1039/D6NJ01681B","DOIUrl":"https://doi.org/10.1039/D6NJ01681B","url":null,"abstract":"<p >This study systematically investigated the interaction characteristics between purpurin and DNA by using multiple spectroscopic techniques, with a particular focus on the interaction mode between purpurin and free DNA <em>in vitro</em>. Evidence obtained through UV-vis spectroscopy, fluorescence spectroscopy, circular dichroism, fluorescence microscopy, and resonance light scattering spectroscopy showed that purpurin could form a stable purpurin–DNA complex <em>via</em> intercalation. A DNA thermal denaturation experiment revealed a 6.5 °C increase in the melting temperature (<em>T</em><small>_m</small>) upon addition of purpurin, indicating that purpurin enhanced the stability of the DNA double helix <em>via</em> intercalation. Fluorescence microscopy showed that selective adsorption between purpurin and DNA occurred, similar to the adsorption between ethidium bromide (EB) and DNA. The DNA binding saturation value (DBSV) further confirmed the strong intercalative binding of purpurin; the DBSV value was 6.41, which was significantly higher than those of its analogues except for EB (EB: 14.70, chrysophanol: 0.53, physcion: 0.15, and alizarin: 0.19). Under optimal conditions, the purpurin removal efficiency of DNA reached 97.8%. By contrast, the purpurin removal efficiency of activated carbon was only 4.25%. Adsorption kinetics indicated that the process was identified as a spontaneous process (Δ<em>G</em> &lt; 0) and followed the pseudo-second-order model (0.9929 ≤ <em>R</em><small>²</small> ≤ 0.9967) and the Langmuir isotherm model (0.9933 ≤ <em>R</em><small>²</small> ≤ 0.9965). This study provides a reference for developing a novel strategy to remove anthraquinone dyes from pollutants <em>via</em> intercalation with DNA <em>in vitro</em>, demonstrating broad application prospects.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 25","pages":" 10423-10437"},"PeriodicalIF":2.6,"publicationDate":"2026-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148336681","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":"Covalent locking of carbon dots in imprinted chitosan gel beads for reusable, visual tetracycline detection","authors":"Chaojie Yu, Yuxin Sang, Ziqi Liu, Haihong Huang, Zuwei Song, Weina Li and Qinxing Sun","doi":"10.1039/D6NJ01464J","DOIUrl":"https://doi.org/10.1039/D6NJ01464J","url":null,"abstract":"<p >This work presents a reusable and visual sensing platform for tetracycline (TC) detection by covalently locking carbon dots (CDs) within molecularly imprinted chitosan gel beads. The key to this design is the use of epichlorohydrin (ECH) as a dual-role agent, which simultaneously crosslinks the chitosan network and forms stable covalent bonds with the CDs. This “covalent locking” strategy not only prevents fluorophore leaching but also induces a permanent blue-shift in the CDs emission from red to green, creating an intense and stable visual signal under UV light. Coupled with the TC-selective cavities created by molecular imprinting, the resulting gel beads exhibit concentration-dependent fluorescence quenching with high specificity. The sensor achieves a low detection limit of 12.23 nM (spectrometric) and, importantly, enables on-site quantitative analysis <em>via</em> a smartphone by monitoring the attenuation of the green emission, yielding a comparable detection limit of 10.69 nM. Demonstrating excellent robustness over a wide range of pH and ionic strength, the sensor retains over 90% of its initial response after 10 regeneration cycles. It was successfully applied to the analysis of spiked milk samples with accurate recoveries (97.3–103.2%) and high reproducibility (RSD ≤ 2.64%). This study highlights a straightforward yet effective material design paradigm where covalent immobilization and molecular imprinting are synergistically integrated to create stable, reusable, and equipment-light sensors for point-of-care applications.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 22","pages":" 9462-9471"},"PeriodicalIF":2.5,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148193748","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 dopant-free porphyrin as a hole-transporting material enabling over 18% efficiency in perovskite solar cells","authors":"Yanjiao Li, Xiaohan Liu, Yujia Fan, Mengxue Ma and Wei Zhang","doi":"10.1039/D6NJ00778C","DOIUrl":"https://doi.org/10.1039/D6NJ00778C","url":null,"abstract":"<p >In recent years, n–i–p structured perovskite solar cells (PSCs) have witnessed significant progress, with their power conversion efficiency (PCE) soaring from 3.9% in 2013 to 24.6% in 2025. This achievement is largely attributable to the continuous optimization of hole-transporting materials (HTMs). Porphyrin-based compounds have emerged as promising HTM candidates due to their electron-rich nature. Although significantly high PCEs have been reported for porphyrin-based HTMs, opportunities for further enhancement through rational molecular design remain. In this work, we designed and synthesized a series of porphyrin-based HTMs with zinc (Zn), gallium (Ga), or copper (Cu) as the central metal, functionalized with triphenylamine groups bearing different substituents on the porphyrin core. The elevated HOMO level of the porphyrin, induced by the –OMe group, results in a non-ideal energy alignment with the perovskite. In contrast, the weaker electron-donating methylthio group (–SMe) results in a suitably lowered HOMO level, facilitating better energy level matching with the perovskite, which enhances the open-circuit voltage (<em>V</em><small>_oc</small>). Furthermore, the sulfur atom in the –SMe group acts as a soft base, forming strong coordination bonds with lead ions (a soft acid) from the perovskite at the HTM/perovskite interface. This interaction effectively passivates interfacial defects, thereby improving the photovoltaic performance of the devices.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 24","pages":" 10344-10350"},"PeriodicalIF":2.6,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285372","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":"Aminoazine-based unsymmetric multidentate ligands in Mn(ii and i) complexes and their application in hydrophosphination reactions","authors":"Aabid A. Wani, Shivkanya M. Bhujbal, Kriti Mehta, Sumit S. Chourasiya, Deepika Kathuria, Michael Wörle, Hansjörg Grützmacher and Prasad V. Bharatam","doi":"10.1039/D6NJ00370B","DOIUrl":"https://doi.org/10.1039/D6NJ00370B","url":null,"abstract":"<p >Two aminoazine-based, non-palindromic, neutral ligands, <strong>L1</strong> and <strong>L2</strong>, were synthesized. Ligand <strong>L1</strong> was complexed with MnCl<small>₂</small> and Mn(OAc)<small>₂</small> to yield Mn(<small>II</small>) pincer complexes <strong>C1</strong> and <strong>C2</strong>. Ligand <strong>L2</strong> was reacted with Mn(CO)<small>₅</small>Br to form Mn(<small>I</small>) complex <strong>C3</strong>. The crystal structures of the three complexes <strong>C1</strong>, <strong>C2</strong>, and <strong>C3</strong> were determined. In all three complexes, the ligands are in their neutral state. In the pincer complexes <strong>C1</strong> and <strong>C2</strong>, the ligand adopts a hydrazone tautomeric state; however, in the bidentate complex <strong>C3</strong>, the azine tautomeric form of the ligand was observed. In addition, an intramolecular N–H–Br(Mn) bond was observed in <strong>C3</strong> (the H4A–Br1 distance is 2.44(3) Å). These complexes were employed in the catalysis of hydrophosphination reactions with cinnamonitrile, cinnamaldehyde, benzylideneacetone, 2-vinylpyridine, styrene, and cyclohexenone. The mechanism of hydrophosphination reactions was explored through quantum chemical analysis, revealing that the ligands can exhibit hemilability and participate <em>via</em> nitrene–imide conversion during catalysis.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 24","pages":" 10153-10159"},"PeriodicalIF":2.6,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285345","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":"Replacing carbazole with [2.2]paracyclophane and triptycene donors: theoretical insights into the modulation of second-order nonlinear optical properties","authors":"Jin-Ting Ye, Jin-Zhe Zhang, Sarula Jin, Yong-Qing Qiu, Li-Hui Wang and Feng-Yang Bai","doi":"10.1039/D6NJ01235C","DOIUrl":"https://doi.org/10.1039/D6NJ01235C","url":null,"abstract":"<p >Functionalization of the weaker carbazole (Cz) donor and arene bridge moieties in compounds is an effective way to regulate their second-order nonlinear optical (NLO) properties. In this work, the second-order NLO responses of donor-π-acceptor molecules that consisted of [2.2]paracyclophane (<strong>CzpPhTrz</strong>)/triptycene scaffolds (<strong>TCz-Trz</strong>) incorporated into carbazole were investigated using the density functional theory method. The charge transfer (CT) characteristics of the three systems were assessed based on frontier molecular orbitals (FMOs), confirming the effective intramolecular CT (ICT) from the donor group to the diphenyltriazine (cyaphenine) acceptor moiety. A stronger electron-donating ability effectively increased the distribution of the HOMO orbital, which has an effect on the static first hyperpolarizability, <em>β</em><small>_tot</small>. The Pcp with through-space interactions (TSIs) and TCz groups can accelerate the ICT characteristic and enhance the contributions to the axial component of the <em>β</em><small>_tot</small> values of <strong>CzpPhTrz</strong> (38.7 × 10<small>⁻³⁰</small> esu) and <strong>TCz-Trz</strong> (41.3 × 10<small>⁻³⁰</small> esu) compared to that of <strong>CzPhTrz</strong> (36.3 × 10<small>⁻³⁰</small> esu) using the <em>ω</em>*B97XD method with optimally-tuned range-separated parameters. In order to confirm its practical significance, the dynamic hyperpolarizability of the studied system was evaluated. The CT characteristics of the crucial excited state were studied based on hole–electron analysis. The reported <em>D</em>-index ranged from 5.634 Å to 5.995 Å, indicating the obvious charge separation in donor-substituted systems. Overall, donor substitution leads to an increase in polarization and CT characteristic, which is an effective way to regulate the second-order NLO response.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 23","pages":" 9875-9883"},"PeriodicalIF":2.5,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247640","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":"Synergistic effects of oxygen vacancies and metal-support interactions in rare earth modified Cu–ZnO–Al2O3 catalysts for CO2 hydrogenation to methanol","authors":"Dan Xie, Zhihao Wu, Lulu Zhou, Weiquan Feng, Jie Cheng, Yue Li and Yongdong Chen","doi":"10.1039/D6NJ01091A","DOIUrl":"https://doi.org/10.1039/D6NJ01091A","url":null,"abstract":"<p >The hydrogenation of CO<small>₂</small> to methanol is pivotal for carbon valorization and a sustainable carbon cycle. However, conventional Cu-based catalysts are plagued by limited CO<small>₂</small> conversion and suboptimal methanol selectivity, which severely hinder their industrial applications. To address this critical challenge, a series of rare earth (RE)-doped Cu–ZnO–Al<small>₂</small>O<small>₃</small> catalysts was synthesized <em>via</em> a facile and scalable method. Experimental results demonstrate that the Ce-modified Cu–ZnO–Al<small>₂</small>O<small>₃</small> catalyst exhibits the most outstanding catalytic performance. Specifically, under the reaction conditions of 220 °C, 3 MPa, and a gas hourly space velocity (GHSV) of 6000 mL g<small>⁻¹</small> h<small>⁻¹</small>, the CO<small>₂</small> conversion reaches 11.4%, the methanol selectivity is 63.5%, and the maximum space-time yield (STY) of methanol is 155.3 g<small>_MeOH</small> kg<small>_Cat</small><small>⁻¹</small> h<small>⁻¹</small>. Comprehensive characterization and in-depth mechanism analysis reveal a significant synergistic effect between the oxygen vacancies and metal-support interactions (MSI). The introduction of cerium not only induces the formation of abundant surface oxygen vacancies, which enhances the adsorption and activation of CO<small>₂</small>, but also remarkably strengthens MSI. This synergistic effect effectively reduces the particle size of copper, promotes the formation of Cu–ZnO interfaces, and stabilizes the key Cu<small>⁺</small> species favorable for methanol synthesis. This coupling of oxygen vacancy-assisted molecular activation and MSI-dominated active site stabilization fundamentally boosts the catalytic efficiency of the Cu-based catalyst. <em>In situ</em> DRIFTS confirms that the reaction follows the HCOO* hydrogenation pathway. This study highlights the effectiveness of RE elements in enhancing the catalytic performance of Cu-based catalysts by regulating the synergistic interactions between oxygen vacancies and MSI, thereby providing new insights and a feasible strategy for the design and development of highly efficient CO<small>₂</small> hydrogenation catalysts.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 25","pages":" 10448-10458"},"PeriodicalIF":2.6,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148336683","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":"Enhanced structural stability and selective furfural hydrogenation over Ru and Si co-doped SrFeO3−δ perovskites","authors":"Meloth Bhavisha, Arsha P. Joseph, Chinnakonda S. Gopinath, Sarkarainadar Balamurugan, Naragalu J. Venkatesha, Venkatachalam Ganesh and Ayyamperumal Sakthivel","doi":"10.1039/D6NJ01060A","DOIUrl":"https://doi.org/10.1039/D6NJ01060A","url":null,"abstract":"<p >Doping of SrFeO<small>_{3−<em>δ</em>}</small> with transition and non-transition elements provides a powerful route to modulate its physicochemical properties. In this investigation, a series of ruthenium and silicon co-doped SrFeO<small>_{3−<em>δ</em>}</small> (SrFe<small>_{0.95−<em>x</em>}</small>Ru<small>_0.05</small>Si<small>_<em>x</em></small>O<small>_{3−<em>δ</em>}</small>) samples were prepared <em>via</em> the sol–gel combustion method using hexamine as fuel. The doped samples crystallized in the cubic structure with the <em>Pm</em><img><em>m</em> (221) space group. The presence of Si<small>⁴⁺</small>, Fe<small>³⁺</small>, Fe<small>⁴⁺</small> and Ru<small>⁴⁺</small> in the SrFe<small>_{0.95−<em>x</em>}</small>Ru<small>_0.05</small>Si<small>_<em>x</em></small>O<small>_{3−<em>δ</em>}</small> sample was confirmed by XPS analysis. The presence of an EPR signal at <em>g</em> = 1.9393 and the temperature-programmed desorption of oxygen (TPD-O<small>₂</small>) analyses validated the presence of oxygen vacancies. The ruthenium and silicon co-doped SrFeO<small>_{3−<em>δ</em>}</small> effectively hydrogenates biomass-derived platform molecule furfural with 95% conversion and exhibits 88% furfuryl alcohol selectivity at 185 °C for 6 h under 30 bar H<small>₂</small> pressure. The spent ruthenium-doped SrFeO<small>_{3−<em>δ</em>}</small> (SrFe<small>_0.95</small>Ru<small>_0.05</small>O<small>_{3−<em>δ</em>}</small>) catalyst exhibited a phase transformation from the cubic perovskite structure to the brownmillerite phase with the exsolution of the metallic ruthenium species. The exsolution of metallic ruthenium can be correlated with the formation of secondary products, <em>viz.</em>, non-selective hydrogenation leads to tetrahydrofurfuryl alcohol, furan, and methylfuran. Ruthenium and silicon co-doped perovskite oxide showed selectivity towards furfuryl alcohol with the retention of its original cubic perovskite structure. This modification of perovskite oxide with ruthenium and silicon demonstrates a highly effective strategy for engineering stable and chemo-selective catalysts for the sustainable upgrading of platform chemicals.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 23","pages":" 9884-9893"},"PeriodicalIF":2.5,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247641","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 high-performance type-II MIL/BiVO4 heterojunction: a robust photocatalyst for efficient Cr(vi) detoxification","authors":"Lidan Yang, Xu Jia, Xiulian Wang, Zhiqi Song, Jiaqi Zhang, Liuxue Zhang, Jiaolong Qiao and Genxing Zhu","doi":"10.1039/D6NJ01338D","DOIUrl":"https://doi.org/10.1039/D6NJ01338D","url":null,"abstract":"<p >To address the issues of low efficiency and complex processes in traditional chromium pollution control technologies, a MIL/BiVO<small>₄</small> heterojunction composite photocatalyst was constructed <em>via</em> hydrothermal <em>in situ</em> growth. This structure effectively promotes the separation of photo-generated charges, achieving complementary advantages between the two components, thereby significantly enhancing the photocatalytic reduction activity and efficiency toward Cr(<small>VI</small>). The MIL/BiVO<small>₄</small> heterojunction achieved a reduction rate of nearly 100% towards hexavalent chromium within 15 minutes under the optimized conditions (UV irradiation, 15 mg of catalyst, 2 mM hexavalent chromium, and 0.7 mL of formic acid). After five cycles of reuse, the material retains over 95% of its catalytic activity, demonstrating excellent stability and reusability. This study provides new insights into developing highly efficient and sustainable materials for heavy-metal pollution remediation.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 23","pages":" 9894-9902"},"PeriodicalIF":2.5,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247642","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":"Tuning metal–ligand crosslinking for shape-stable, self-healing capacitive pressure sensors","authors":"Lina Rose, Fatemeh Motaghedi, Nicole Vanier, Mohammed Jalal Ahamed and Simon Rondeau-Gagné","doi":"10.1039/D6NJ00535G","DOIUrl":"https://doi.org/10.1039/D6NJ00535G","url":null,"abstract":"<p >Self-healing polymers inspired by biological tissue regeneration pave the way for developing robust, flexible wearable electronic devices. In this work, we report a self-healing capacitive pressure sensor composed of an imine- and metal–ligand crosslinked polymer as the dielectric layer, integrated with carbon nanotube (CNT) electrodes. Through fine-tuning of the dynamic crosslinking ratios, a clear structure–property relationship was established, yielding a dielectric with improved geometric stability, mechanical rigidity, and efficient autonomous self-healing. The fabricated sensor demonstrated stable performance under pressures ranging from 60 kPa to 1 MPa, with minimal hysteresis, high cyclic durability, and good fatigue resistance. The crack width and healing time were quantitatively analysed, and the device showed stable operation after consecutive cut-and-healing cycles, while the CNT electrodes retained conductivity with only minor resistance drift. The optimized material was subsequently incorporated into Mesoamerican pyramidal (MAP) microstructured devices to enhance pressure-sensing performance. This work highlights a scalable, intrinsically self-healing pressure sensor with potential for long-term use in wearable electronics, biomedical devices, and harsh industrial environments.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 25","pages":" 10684-10693"},"PeriodicalIF":2.6,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/nj/d6nj00535g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148336712","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}