Journal of Photochemistry and Photobiology A-chemistry最新文献

{"title":"Linear relationship between carbonyl index of weathered microplastics with a CC backbone and solar light photodegradation kinetics of nicotine","authors":"Pietro Bonechi ,&nbsp;Irina Kandylioti ,&nbsp;Alessandra Cincinelli ,&nbsp;Ioana Alexandra Ionescu ,&nbsp;Elefteria Psillakis","doi":"10.1016/j.jphotochem.2025.116609","DOIUrl":"10.1016/j.jphotochem.2025.116609","url":null,"abstract":"<div><div>In this study, we argue that the Carbonyl Index (CI) values of weathered microplastics with carbon–carbon backbones can reliably predict their ability to enhance indirect photodegradation of organics under solar light, an effect that is independent of the type of polymer used. Polystyrene (PS), polypropylene (PP), and low-density polyethylene (LDPE) pellets were artificially weathered under UV-C, either in ambient air or submerged in water. Surface changes were characterized using ATR-FTIR spectroscopy, and the CI values were calculated. PS exhibited a much higher weathering rate than PP and LDPE, with air exposure being more effective than water for all plastic types. Nicotine (NIC) was used as the model organic compound. NIC photodegradation (10 mg L⁻¹) was monitored in the presence of each weathered pellet type (50 g L⁻¹) for 6 h under simulated sunlight at pH 11. The apparent pseudo-first-order rate constants, <em>k,</em> were 0.025 ± 0.015 h⁻¹ (air-weathered LDPE), 0.036 ± 0.002 h⁻¹ (water-weathered PP), 0.079 ± 0.029 h⁻¹ (air-weathered PP), 0.216 ± 0.014 h⁻¹ (water-weathered PS), and 0.346 ± 0.016 h⁻¹ (air-weathered PS). A linear correlation (R² = 0.956) was found between CI and k, indicating that photodegradation is primarily governed by the degree of aging rather than the polymer type. This relationship was further validated using naturally weathered PS and PP items collected from beaches, which aligned with the established CI–k correlation. These findings suggest that the CI is a practical indicator for predicting the environmental reactivity of weathered microplastics.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116609"},"PeriodicalIF":4.1,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633105","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":"Performance optimization of mechanically stacked c-Si solar cells TOPCon, HIT, PERC in tandem configurations under albedo varying light intensities","authors":"Rafi Ur Rahman ,&nbsp;Maha Nur Aida ,&nbsp;Jaljalalul Abedin Jony ,&nbsp;Muhammad Quddamah Khokhar ,&nbsp;Hasnain Yousuf ,&nbsp;Alamgeer ,&nbsp;Sangheon Park ,&nbsp;Shahzada Qamar Hussain ,&nbsp;Junsin Yi","doi":"10.1016/j.jphotochem.2025.116606","DOIUrl":"10.1016/j.jphotochem.2025.116606","url":null,"abstract":"<div><div>This research investigates the performance of Si/Si mechanically stacked solar cells using TOPCon technology in various configurations, specifically TOPCon/TOPCon, TOPCon/HIT, and TOPCon/PERC. The cells were tested under parallel and series across Albedo illumination (0.1 to 0.5 suns) to evaluate their efficiency and energy output. The key performance parameters measured include J_sc, V_oc, FF, and overall efficiency. In the parallel configuration, the TOPCon/TOPCon configuration exhibited the highest efficiency of 31.48 %, with a V_oc of 1.42 V, J_sc of 52.68 mA/cm², and FF of 81.43 %. The TOPCon/HIT parallel configuration demonstrated a strong performance, with an efficiency of 29.33 %, V_oc of 1.43 V, and J_sc of 49.34 mA/cm². The TOPCon/PERC parallel configuration showed the highest J_sc of 48.71 mA/cm², V_oc (1.43 V), and FF (79.53 %), resulting in an efficiency of 29.05 %. TOPCon/TOPCon series achieved a J_sc of 17.81 mA/cm² and an efficiency of 20.59 %. These results highlight the advantages of the TOPCon/TOPCon parallel configuration, which effectively leverages both voltage and current, making it the optimal configuration for maximizing energy output. The findings of this study offer valuable insights into optimizing solar cell performance, particularly for applications requiring efficient use of direct and reflected sunlight.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"470 ","pages":"Article 116606"},"PeriodicalIF":4.1,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611860","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":"Bamboo-derived carbon supported plasmonic ag nanoparticles for visible-light-driven photocatalytic degradation of tetracycline","authors":"Fei Li,&nbsp;Xingyu Li,&nbsp;Xiliang Chen,&nbsp;Qinfang Li,&nbsp;Haian Xia","doi":"10.1016/j.jphotochem.2025.116602","DOIUrl":"10.1016/j.jphotochem.2025.116602","url":null,"abstract":"<div><div>A large number of antibiotics, such as tetracycline (TC), etc., are released into the aqueous system, which poses a great threat to human health and ecological balance. Nowadays, the adsorption method is still a commonly used method to remove the persistent pollutants. However, adsorption materials, such as hierarchical carbon materials, are prone to adsorption saturation, which is uneconomical and requires frequent regeneration. Herein, to address this issue, novel bamboo-derived carbon composite catalysts consisting of N-doped oxygen vacancy-rich TiO₂, and Ag nanoparticles (NPs) (Ag-N-TiO₂/BC) were prepared and used for the photocatalytic degradation of TC under visible light irradiation. 1 %Ag-N-TiO₂/BC(1) was found to have an excellent photocatalytic degradation of TC, with 77 % degradation after 180 min of visible light irradiation, and the kinetic study showed that the reaction rate constant was 0.00686 min⁻¹. The physicochemical and electrochemical properties of the catalysts were systematically characterized by XRD, TEM, XPS, and EIS, etc. Importantly, it is revealed that the introduction of Ag NPs with SPR effect and the presence of oxygen vacancies of N-TiO₂ provide a long-term degradation activity of TC, thus avoiding the frequent regeneration of bamboo charcoal (BC). The reaction mechanism study showed that h⁺ plays a dominant role in the degradation of TC. After four cycles of tests, the degradation rate of TC by this composite catalyst could still reach 69 %, demonstrating its good stability and reusability in the cycling experiment. This study provides a new method for the high-value utilization of BC to fabricate the composite photocatalysts for the long-term and economic removal of antibiotics.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116602"},"PeriodicalIF":4.1,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588902","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 photosensitive tricarbonyl Mn(I) CO-releasing molecule of 6-mercaptopurine: Genotoxicity and mode of cell death","authors":"Ahmed M. Mansour ,&nbsp;Rabaa M. Khaled ,&nbsp;Krzysztof Radacki ,&nbsp;Ola R. Shehab ,&nbsp;Gamal A.E. Mostafa ,&nbsp;Essam A. Ali ,&nbsp;Mona A.M. Abo Zeid ,&nbsp;Mahmoud T. Abo-Elfadl","doi":"10.1016/j.jphotochem.2025.116587","DOIUrl":"10.1016/j.jphotochem.2025.116587","url":null,"abstract":"<div><div>Two photosensitive tricarbonyl manganese(I) complexes [MnX(bpy)(CO)₃]^0/+ (X = Br (<strong>1</strong>) and 6-mercaptopurine (<strong>2</strong>); bpy = 2,2′-bipyridine) were tested for their antiproliferative effects against six normal and malignant cell lines of various origins under dark and 468 nm light exposure. 6-Mercaptopurine is a widely recognised therapeutic drug used to treat human leukaemia. Compound <strong>1</strong> was highly toxic to the THP-1 cell line, with an IC₅₀ value of 13.6 ± 1.2 μM in light and 3.0 ± 0.1 μM in dark, while <strong>2</strong> had no effect on it. On the other hand, <strong>2</strong> demonstrated slighlty toxicity towards HepG2 cells, with IC₅₀ values of about 100 μM under dark and light conditions. The illumination at 468 nm increased the formation of the reactive oxygen species (ROS) of both <strong>1</strong> and <strong>2</strong> in comparison to the dark ones. Complex <strong>1</strong> had the greater capacity for apoptosis, which was the predominant mode of cell death. The Comet assay confirmed the genotoxicity of both complexes and the light conditions caused significant genotoxic damage compared to the dark conditions.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116587"},"PeriodicalIF":4.1,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580606","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":"Primary intermediate identified during heterogeneous photolysis of acid Orange 7","authors":"Jaroslava Kořínková ,&nbsp;Kateřina Nováková ,&nbsp;Aleš Imramovský ,&nbsp;Oldřich Machalický","doi":"10.1016/j.jphotochem.2025.116591","DOIUrl":"10.1016/j.jphotochem.2025.116591","url":null,"abstract":"<div><div>Acid Orange 7 was photocatalytically degraded in a titanium dioxide slurry using oxygen bubbling and polychromatic radiation from a high-pressure Hg lamp in a back-flow tubular photoreactor. The dye was dissolved in buffers based on aqueous sodium carbonate (pH 10), sodium hydroxide (pH 10), or hydrochloric acid (pH 4). Reaction products were analyzed by NMR and MS spectroscopy as well as HPLC.</div><div>A previously undescribed primary intermediate, 3-hydroxy-4-[(2-hydroxy-1-naphthyl)diazenyl]benzenesulfonic acid, was detected and isolated on a preparative scale from the photoreactor. The identity of the photolysis product was confirmed by comparison with a chemically synthesized standard.</div><div>The kinetics of the heterogeneous photolysis of Acid Orange 7 was also investigated.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116591"},"PeriodicalIF":4.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580609","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":"On a nanocontainer having a magnetic core and a porous shell loaded with Erythrosin B for the optical sensing and adsorption of perfluorooctane sulfonate","authors":"Rou Cai ,&nbsp;Yu Jiang ,&nbsp;Qi Liu ,&nbsp;Weidong Li ,&nbsp;Jianping Qiu","doi":"10.1016/j.jphotochem.2025.116604","DOIUrl":"10.1016/j.jphotochem.2025.116604","url":null,"abstract":"<div><div>The pollution of <em>per</em>- and poly-fluoroalkyl substances (PFAS) has attracted increasing research attention due to their wide applications in daily life, which consequently demands reliable detection and treatment techniques for PFAS pollutants. In this work, we intend to construct an optical sensing and removal platform (denoted as EB@Fe₃O₄) for perfluorooctane sulfonate (PFOS), using Erythrosin B (EB) as the probe and a core-shell structure of Fe₃O₄-silica as the carrier. The optical sensing performance of EB towards PFOS was first discussed through its photophysical responses to PFOS, including absorption spectra, emission spectra, and emission quantum yields. An emission turn-on effect was observed from EB after adding PFOS with the help of hexadecyltrimethylammonium bromide (CTAB) due to the interaction between EB:CTAB micelles and PFOS. An optimal concentration ratio of EB:CTAB was determined as 0.5 μM:80 μM. Then, this core-shell structure was characterized and confirmed by SEM (scanning electron microscopy), XRD (X-ray diffraction), N₂ adsorption/desorption, and TGA (thermal gravimetric analysis). The guest molecules of EB:CTAB were loaded into the porous tunnels of EB@Fe₃O₄ with a weight ratio of 34 %. EB@Fe₃O₄ showed a linear emission turn-on effect within the PFOS concentration region of 0 to 14 μM, with a LOD of 0.29 μM and good sensing selectivity (except for perfluorooctanoic acid). EB@Fe₃O₄ could remove PFOS effectively, with an adsorption capacity of 0.115 mg/g.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116604"},"PeriodicalIF":4.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580608","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":"Sustainable ammonia-driven large-scale synthesis of low-defect poly(heptazine imide) for boosted photocatalytic hydrogen evolution","authors":"Zhengliang Zhao ,&nbsp;Zehui Jia ,&nbsp;Shuting Zhang ,&nbsp;Zhenzhen Song ,&nbsp;Jun Zhou ,&nbsp;Zhu Shu","doi":"10.1016/j.jphotochem.2025.116600","DOIUrl":"10.1016/j.jphotochem.2025.116600","url":null,"abstract":"<div><div>The synthesis of crystalline poly(heptazine imide) (PHI) represents a promising approach to enhance the photocatalytic activity of carbon nitride. However, achieving high yields of PHI has been a persistent challenge in the field. Herein, we introduced a novel one-step strategy for large-scale synthesis of PHI by thermal heating a mixture of melamine, KSCN and NH₄Cl. Benefitting from the dual effects of the by-product precursor NH₄SCN, produced from the reaction of KSCN and NH₄Cl, as well as the maintenance of a sustainable NH₃ atmosphere, the yields of the resultant PHIx samples can reach up to 100.5 % relative to 2 g of melamine. Among these samples, PHI2 stands out due to its superior crystallinity and minimal defect density compared to conventional PHI. As a result, the photocatalytic H₂ evolution reaction (HER) rate of PHI2 is 7.0 times than that of PHI. Furthermore, PHI2 demonstrates an exceptional apparent quantum efficiency (AQE) of 30.7 % at a wavelength of 420 nm. The enhanced HER rate and AQE of PHI2 are attributed to the reduced defect density in its conjugated heptazine skeleton, which facilitates efficient charge carrier separation and transfer. This work not only achieves high-yield production of PHI but also paves the way for the large-scale application of carbon nitride photocatalysts.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116600"},"PeriodicalIF":4.1,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522253","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":"Photodynamic antibacterial potential of pomegranate peel-derived carbon quantum dots synthesized via pyrolytic and hydrothermal methods","authors":"Tzu-Hao Huang ,&nbsp;Yi-Chun Chen ,&nbsp;Wen-Cheng Wang ,&nbsp;Yu-Tung Yen ,&nbsp;Yung-Pin Tsai ,&nbsp;Chia-Hua Lin","doi":"10.1016/j.jphotochem.2025.116603","DOIUrl":"10.1016/j.jphotochem.2025.116603","url":null,"abstract":"<div><div>In this study, carbon quantum dots (CQDs) were synthesized from pomegranate peel via pyrolytic (PY-ppCQD) and hydrothermal (HT-ppCQD) methods at 160 °C and 180 °C. Transmission electron microscopy (TEM) revealed uniformly dispersed nanoparticles with diameters ranging from 2 to 5 nm and lattice fringes indicative of graphitic carbon structures. FTIR and XPS analyses confirmed the presence of surface functional groups—such as hydroxyl, carboxyl, and carbonyl moieties—originating from the polyphenolic components of the raw biomass, indicating effective retention of bioactive functionalities. Cytotoxicity assessment using the MTT assay showed dose-dependent effects on HEK-293 cells, with significant inhibition observed at 800 μg/mL, supporting the selection of 0–400 μg/mL for subsequent antibacterial evaluations. The antibacterial efficacy of CQDs against <em>Staphylococcus aureus</em> (SA) was assessed via OD600 and colony-forming unit (CFU) measurements, revealing concentration-dependent growth inhibition, with PY-ppCQD exhibiting slightly superior activity compared to HT-ppCQD, particularly at 400 μg/mL. Under 440 nm blue light irradiation, antibacterial activity was significantly enhanced for both CQDs, attributed to the generation of reactive oxygen species (ROS) that induce bacterial membrane damage. Scanning electron microscopy (SEM) further confirmed morphological deformation and cell rupture, especially in the PY-ppCQD-treated groups under light exposure. These findings demonstrate that pomegranate peel-derived CQDs—particularly those prepared via pyrolysis—possess strong intrinsic and photo-enhanced antibacterial properties, highlighting their potential as sustainable and multifunctional nanomaterials for biomedical and antimicrobial applications.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116603"},"PeriodicalIF":4.1,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522254","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":"Improving the efficiency of ultraviolet-C light-emitting diode water disinfection reactors by using light guide plates","authors":"Chien-Ping Wang,&nbsp;Jhen-Wei Hong","doi":"10.1016/j.jphotochem.2025.116601","DOIUrl":"10.1016/j.jphotochem.2025.116601","url":null,"abstract":"<div><div>Light guide plates have been widely used to convert light-emitting diode (LED) point light sources into uniform surface light sources for lighting and backlighting applications. Because of their unique optical features, light guide plates can be used to achieve uniform ultraviolet light irradiation of microbes in water and to improve the performance of reactors equipped with ultraviolet-C LEDs. This study examined the effects of LED arrangement and microstructural pattern on irradiance uniformity and on <em>Escherichia coli</em> inactivation effectiveness. Four LGP configurations (single-side emission with uniform microstructures (SU), single-side emission with gradient microstructures (SG), double-side emission with uniform microstructures (DU) and double-side emission with symmetric microstructures (DS)) were designed in this study to improve irradiance uniformity. Simulations and experiments were conducted to determine the ultraviolet fluence received by microbes and the inactivation value of <em>E. coli</em>. The simulation results indicated that the DS configuration had the highest irradiance uniformity value of 85.7 %, which was approximately 62.3 %, 38.1 %, and 22.7 % higher than the values of the SU, DU, and SG configurations, respectively. Similarly, the experimental results indicated that the DS configuration had the highest inactivation value of 5.1 log at a flow rate of 300 mL/min, which was 19.0 %, 13.4 %, and 10.4 % higher than the values of the SU, DU, and SG configurations, respectively. In summary, this study developed a novel light guide plate configuration that can improve the efficiency of ultraviolet-C LED water disinfection reactors.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116601"},"PeriodicalIF":4.1,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522252","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":"Synthesis of pyridinium-based fluorescence compounds with different counter anions and their piezochromism property and antimicrobial activity","authors":"Cheng Zeng,&nbsp;Richao Shen,&nbsp;Yong Li,&nbsp;Jiawei Lv,&nbsp;Yasong Cao,&nbsp;Haowen Huang,&nbsp;Sanbao Wang,&nbsp;Hongting Fan,&nbsp;Shuangyu Dong,&nbsp;Ziqiang Lei,&nbsp;Hengchang Ma","doi":"10.1016/j.jphotochem.2025.116594","DOIUrl":"10.1016/j.jphotochem.2025.116594","url":null,"abstract":"<div><div>In the field of organic chemistry, synthesizing fluorescence compounds with multiple emission colors is an interesting but great challenging work, which usually requires several tedious steps and is also costly less effective, time-consuming et al. In this contribution, pyridinium-based fluorescence compounds (named as <strong>TPB/anion</strong> derivatives) were obtained by simply replacing the accompanied anions at room temperature. It was found that the anions totally managed the optical performance of the <strong>TPB</strong> core, leading to the products with emission wavelength located from 479 to 594 nm in their solid state. Meanwhile, due to the very twisted conformation and intramolecular electron donating (D) and accepting (A) interaction, these <strong>TPB/anion</strong> derivatives were highly sensitive to the external force, demonstrating the smart behavior of piezochromism property. Hereof, we convinced that the interactions between the negative counter-ion with <strong>TPB</strong> framework makes great contribution to the multiple emission colors and piezochromism property. Beyond that, three <strong>TPB/anion</strong> derivatives were successfully employed as antimicrobial materials due to the positively charged skeleton (used as anchor to the bacteria membrane) and excellent reactive oxygen species (ROS) generating capability, this synergetic antimicrobial activity is extremely favorable to overcome the drug resistance in the future. What should be noted that the used <strong>TPB/anion</strong> derivatives are of excellent selectivity of bacteria killing performance to <em>Methicillin-resistant S. aureus</em> rather than <em>E. coli</em>, <em>E. faecalis</em> and <em>P. aeruginosa</em>. <em>T.</em>, the preliminary research result confirmed the better affinity between the <strong>TPB</strong> derivatives with <em>Methicillin-resistant S. aureus</em> played an important role for the effective antimicrobial activity.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"469 ","pages":"Article 116594"},"PeriodicalIF":4.1,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501601","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}