Journal of Photochemistry and Photobiology A-chemistry最新文献

英文中文

Study of factors impacting the light-driven removal of ciprofloxacin (Ciprocinal®) and identification of degradation products using LC–ESI–MS2 研究影响光驱去除环丙沙星（Ciprocinal®）的因素，并利用 LC-ESI-MS2 鉴定降解产物

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-29 DOI: 10.1016/j.jphotochem.2024.116119

Dušica Jovanović, Dejan Orčić, Daniela Šojić Merkulov, Vesna Despotović, Nina Finčur

This study aimed to assess the photocatalytic removal efficiency of the fluoroquinolone antibiotic ciprofloxacin (CIP), a pharmaceutically active compound of Ciprocinal®, from the aquatic environment. It focused on evaluating how various influencing factors – radiation type, catalyst loading, initial substrate concentration, CIP source, the introduction of different electron acceptors and scavengers of reactive species, water matrix, as well as photoreactor design – influence the photodegradation efficiency of the antibiotic. Namely, CIP photolytic removal efficiency was enhanced in the presence of H₂O₂, (NH₄)₂S₂O₈, and KBrO₃. The highest reaction rate was achieved with a ZnO loading of 1.0 mg/mL, while the degradation rate of CIP increased with the initial concentration across the studied concentration range (0.0025–0.05 mmol/L). Molecular O₂ has the best electron acceptor properties in CIP photocatalytic experiments, whereas central role in the degradation mechanism belongs to

{HO}_{ads}^{∙}

, h⁺, and

O_{2}^{∙ -}

. Next, CIP present in a commercial formulation was more prone to removal than the analytical standard, and its photocatalytic degradation occurs in natural water, however with a reduced removal efficiency compared to ultrapure water. Moreover, reaction intermediates formed during photocatalytic degradation were studied in detail by employing LC–ESI–MS² technique, whereby the formation of nine degradation intermediates was revealed, and possible CIP degradation patways were proposed. Lastly, ECOSAR model predicted that these intermediates do not pose acute or chronic toxicity towards the aquatic organisms.

本研究旨在评估水生环境中氟喹诺酮类抗生素环丙沙星（CIP）的光催化去除效率，环丙沙星是 Ciprocinal® 的一种药物活性化合物。研究重点是评估各种影响因素（辐射类型、催化剂负载、初始底物浓度、CIP 源、不同电子受体和反应物清除剂的引入、水基质以及光反应器设计）如何影响抗生素的光降解效率。也就是说，在 H2O2、(NH4)2S2O8 和 KBrO3 的存在下，CIP 的光解去除效率会提高。ZnO 负载量为 1.0 mg/mL 时反应速率最高，而在所研究的浓度范围（0.0025-0.05 mmol/L）内，CIP 的降解速率随初始浓度的增加而增加。在 CIP 光催化实验中，分子 O2 具有最好的电子受体特性，而降解机制中的核心角色属于 HOads∙、h+ 和 O2∙-。其次，与分析标准相比，商用配方中的 CIP 更容易被去除，其在天然水中也会发生光催化降解，但与超纯水相比，去除效率较低。此外，利用 LC-ESI-MS2 技术详细研究了光催化降解过程中形成的反应中间产物，发现了九种降解中间产物，并提出了可能的 CIP 降解途径。最后，根据 ECOSAR 模型预测，这些中间产物不会对水生生物产生急性或慢性毒性。

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引用次数: 0

Construction of direct Z-scheme Sn3O4/WO3 heterostructure photocatalyst for enhanced Congo red degradation and Cr(Ⅵ) reduction performance 构建直接 Z 型 Sn3O4/WO3 异质结构光催化剂以提高刚果红降解和 Cr（Ⅵ）还原性能

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-29 DOI: 10.1016/j.jphotochem.2024.116122

Lina Zhang , Xiaotong Yin , Xinyu Liu , Wei Zhang , Yuxin Tian , Xiaodong Li , Boxin Li , Shi Su

The development of well-designed architectures is crucial in accelerating the transport of photon-generated carriers in composite photocatalysts. In this study, a direct Z-scheme Sn₃O₄/WO₃ (SW) photocatalyst was successfully fabricated utilizing a straightforward hydro/solvothermal approach, where Sn₃O₄ nanosheets (NSs) grew in-situ onto WO₃ nanorods (NRs) uniformly. The optimal SW-2 composite exhibits a remarkable reduction rate of 93.5 % for Congo Red (CR) within 40 min, with a rate constant (k) of 0.075 min⁻¹. This performance surpasses that of pristine Sn₃O₄ and WO₃, which have rate constants of 0.027 min⁻¹ and 0.018 min⁻¹, respectively. Additionally, the SW-2 composite effectively removes 89.2 % of Cr(VI) over 100 min, achieving a k value of 0.019 min⁻¹, which is higher than that of Sn₃O₄ (0.013 min⁻¹) and WO₃ (0.001 min⁻¹). Furthermore, the photocatalytic degradation performance of the recovered samples retains their photocatalytic degradation performance after five consecutive experimental cycles, indicating excellent durability. The enhanced photocatalytic performance can be attributed to the construction of a direct Z-scheme heterostructure, which not only broadens the spectral response range, bur also ensures efficient separation of photoexcited carriers and fosters robust photo-redox capacity within the composite. This study is expected to provide some valuable insights into the design and synthesis of Z-scheme heterojunction photocatalysts, aimed at addressing pressing environmental pollution challenges.

在复合光催化剂中，设计良好的结构对于加速光子产生的载流子的传输至关重要。本研究采用直接的水溶热法成功制备了一种直接 Z 型 Sn3O4/WO3 （SW）光催化剂，其中 Sn3O4 纳米片（NSs）均匀地原位生长在 WO3 纳米棒（NRs）上。最佳 SW-2 复合材料在 40 分钟内对刚果红 (CR) 的还原率达到 93.5%，速率常数 (k) 为 0.075 min-1。这一性能超过了原始 Sn3O4 和 WO3，它们的速率常数分别为 0.027 min-1 和 0.018 min-1。此外，SW-2 复合材料在 100 分钟内可有效去除 89.2% 的六价铬，其 k 值为 0.019 min-1，高于 Sn3O4（0.013 min-1）和 WO3（0.001 min-1）。此外，回收样品的光催化降解性能在连续五个实验周期后仍然保持不变，表明其具有极佳的耐久性。光催化性能的增强可归功于直接 Z 型异质结构的构建，它不仅拓宽了光谱响应范围，还确保了光激发载流子的有效分离，并在复合材料中培养了强大的光氧化还原能力。这项研究有望为设计和合成 Z 型异质结光催化剂提供一些有价值的见解，从而应对紧迫的环境污染挑战。

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引用次数: 0

Enhanced photocatalytic phenol production from benzene on polymers with coordinatively unsaturated Fe centers 在具有配位不饱和铁中心的聚合物上增强苯的光催化苯酚生产

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-29 DOI: 10.1016/j.jphotochem.2024.116123

Bo Wang , Peng Li , Zongbo Xie , Zhanggao Le

The photocatalytic hydroxylation of benzene to phenol using low-cost Fe-based materials is of great significance but remains a great challenge for the conversion of benzene in an efficient manner. Here we report a novel method to construct polymeric Fe-BTC-350 with highly dispersed coordinatively unsaturated (CUS) Fe centers by a simple pyrolysis of iron benzene tricarboxylic acid (Fe-BTC) coordination polymer. The CUS Fe centers in Fe-BTC-350 function as Lewis acid sites to accept both electrons and hydroxyl radicals, thus enhancing photocatalytic phenol generation. An optimal phenol yield of 22.7 % has been achieved over optimized Fe-BTC-350 which is 2.8 times that of the Fe-BTC. No evident decay in the activity was found after 4 cycles of consecutive reactions, indicating the robust stability of the photocatalyst. It is expected that the construction of CUS transition metal centers can also be utilized for other photocatalytic radical reactions.

使用低成本的铁基材料进行苯到苯酚的光催化羟基化具有重要意义，但对于苯的高效转化仍是一个巨大挑战。在此，我们报告了一种新方法，即通过简单热解苯三羧酸铁（Fe-BTC）配位聚合物，构建具有高度分散的配位不饱和（CUS）铁中心的聚合物 Fe-BTC-350。Fe-BTC-350 中的 CUS Fe 中心具有路易斯酸位点的功能，可以接受电子和羟基自由基，从而提高光催化苯酚的生成。经过优化的 Fe-BTC-350 的最佳苯酚产量为 22.7%，是 Fe-BTC 的 2.8 倍。连续反应 4 个周期后，活性没有明显下降，这表明光催化剂具有很强的稳定性。预计 CUS 过渡金属中心的构建还可用于其他光催化自由基反应。

引用次数: 0

Based on D–π–A structure of near-infrared turn-on fluorescent probe for cysteine imaging in renal ischemia–reperfusion injury in mice 基于 D-π-A 结构的近红外开启荧光探针在小鼠肾缺血再灌注损伤中的半胱氨酸成像研究

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-28 DOI: 10.1016/j.jphotochem.2024.116114

Chunpo Ge, Feng Pei, Pengcheng Zhang, Xiaoyu Wang, Xiaopeng Jiang, Kaiwen Chang, Zhijun Yang

Cysteine (Cys) is an important biomarker, particularly relevant in studying physiological and pathological processes related to oxidative stress. Small-molecule fluorescent probes for detecting Cys are essential in these investigations. In this study, we designed and synthesized the fluorescent probe DCI-Th-Cys, utilizing dicyanoisophorone and acrylic ester as its structural components. DCI-Th-Cys exhibits near-infrared emission at 670 nm, with a large Stokes shift of 190 nm upon reacting with Cys, demonstrating high sensitivity and selectivity. We successfully imaged Cys in both cellular and mouse models, notably detecting elevated Cys levels in the kidneys of a mouse model with renal ischemia–reperfusion injury.

半胱氨酸（Cys）是一种重要的生物标志物，尤其适用于研究与氧化应激有关的生理和病理过程。检测 Cys 的小分子荧光探针在这些研究中至关重要。在这项研究中，我们利用二氰异佛尔酮和丙烯酸酯作为其结构成分，设计并合成了荧光探针 DCI-Th-Cys。DCI-Th-Cys 在 670 纳米波长处发出近红外荧光，与 Cys 反应后会产生 190 纳米波长的大斯托克斯位移，具有高灵敏度和高选择性。我们成功地在细胞和小鼠模型中对 Cys 进行了成像，特别是在肾缺血再灌注损伤小鼠模型的肾脏中检测到了 Cys 水平的升高。

引用次数: 0

Enhanced piezo-photocatalytic activity of ZnS/Fe2O3: Benefit from type I junction and weak water flow-induced piezoelectric polarization 增强 ZnS/Fe2O3 的压电光催化活性：受益于 I 型结和弱水流诱导的压电极化

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-28 DOI: 10.1016/j.jphotochem.2024.116117

Yingge Zhang , Xiaolei Zhang , Yihe Zhang , Youpeng Zhang , Hongfen Li , Hongwei Huang

Photocatalysis is considered to be a sustainable and less polluting environmental purification technology, however, the limited photogenerated charge separation efficiency and light absorption hinder its large-scale application. Encouragingly, piezocatalysis is proposed as an emerging and appealing strategy to drive the migration and separation of photoinduced carriers. Nevertheless, the source of piezocatalysis is usually derived from high energy-consuming ultrasonic vibration. Herein, we realize superior piezo-photocatalytic chlortetracycline hydrochloride degradation performance stimulated by low-frequency water flow-driven piezoelectric polarization of I-type ZnS/Fe₂O₃ junction. The integration of Fe₂O₃ is beneficial to extend the light absorption from ultraviolet region to visible range and boost the charge separation efficiency of ZnS/Fe₂O₃. Meanwhile, the piezoelectric polarization triggered by weak water flow further promotes the directional separation of photogenerated carriers. With all these merits, the optimized ZnS/Fe₂O₃ shows a piezo-photocatalytic chlortetracycline hydrochloride (CTC) degradation rate of 73.2 % within 20 min, which is 2.8 and 2.1 times that of Fe₂O₃ and ZnS, respectively, and 17.4-fold and 1.1-fold that of single stirring and light, respectively. This work provides a feasible guidance for designing efficient piezo-photocatalysts for in-situ purification of wastewater in natural environmental with effective visible light responsiveness and sensitivity to weak mechanical stress.

光催化被认为是一种可持续的、污染较少的环境净化技术，然而，光生电荷分离效率和光吸收能力有限，阻碍了其大规模应用。令人鼓舞的是，压电催化被认为是一种新兴的、有吸引力的策略，可推动光诱导载流子的迁移和分离。然而，压电催化的源泉通常来自高耗能的超声波振动。在此，我们通过低频水流驱动 I 型 ZnS/Fe2O3 结的压电极化，实现了卓越的压电光催化盐酸金霉素降解性能。Fe2O3 的集成有利于将 ZnS/Fe2O3 的光吸收从紫外区扩展到可见光范围，并提高电荷分离效率。同时，弱水流引发的压电极化进一步促进了光生载流子的定向分离。综合上述优点，优化后的 ZnS/Fe2O3 在 20 分钟内的压电光催化盐酸金霉素（CTC）降解率达到 73.2%，分别是 Fe2O3 和 ZnS 的 2.8 倍和 2.1 倍，是单一搅拌和光的 17.4 倍和 1.1 倍。这项工作为设计高效的压电光催化剂提供了可行的指导，该催化剂具有有效的可见光响应性和弱机械应力敏感性，可用于自然环境中废水的原位净化。

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引用次数: 0

Theoretical study on the relationship between ESIPT process and solvent of 9,10-dihydroxybenzo[h]quinolone 关于 9,10-二羟基苯并[h]喹啉酮 ESIPT 工艺与溶剂关系的理论研究

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-28 DOI: 10.1016/j.jphotochem.2024.116121

Liangyue Cheng, Alexander G. Cherednichenko

To elucidate the relationship between the excited-state intramolecular proton transfer (ESIPT) mechanism of 9,10-dihydroxybenzo[h]quinoline (9-10-HBQ) and the influence of solvents, for better application. This paper focuses on the investigation of hydrogen bond geometric changes, the ESIPT mechanism, and its behavior modulated by solvent polarity. The structural parameters of the ground-state (S₀) and excited-state (S₁) related to the hydrogen bond (O₁H₂⋯O₃), along with the infrared vibrational spectra, core-valence bifurcation (CVB) index, hydrogen bond bond-critical point (BCP) parameters, RDG function isosurfaces, and scatter plots, reveal that the enhanced hydrogen bond strength in the S₁ state promotes the ESIPT behavior of 9-10-HBQ-PT1. Further frontier molecular orbital and natural Population Analysis (NPA) charge analyses indicate that intramolecular charge redistribution facilitates the ESIPT process. Based on the analysis of potential energy curves, transition states (TS), and intrinsic reaction coordinate (IRC) pathways, we found that the reaction energy barriers can be tuned by the solvent. For example, in cyclohexane (Cy), toluene (Tol), chloroform (TCM), and acetonitrile (ACN), the reaction energy barriers were 7.12 kcal/mol, 7.25 kcal/mol, 7.65 kcal/mol, and 8.15 kcal/mol, respectively.

为了阐明 9,10-二羟基苯并[h]喹啉（9-10-HBQ）激发态分子内质子转移（ESIPT）机理与溶剂影响之间的关系，以便更好地应用。本文重点研究了氢键几何变化、ESIPT 机理及其受溶剂极性调节的行为。与氢键（O1H2⋯O3）相关的基态（S0）和激发态（S1）的结构参数，以及红外振动光谱、核-价分叉（CVB）指数、氢键临界点（BCP）参数、RDG 函数等值线和散点图显示，S1 状态下氢键强度的增强促进了 9-10-HBQ-PT1 的 ESIPT 行为。进一步的前沿分子轨道和自然群体分析（NPA）电荷分析表明，分子内电荷再分布促进了 ESIPT 过程。根据对势能曲线、过渡态（TS）和固有反应坐标（IRC）途径的分析，我们发现反应能垒可由溶剂调节。例如，在环己烷（Cy）、甲苯（Tol）、氯仿（TCM）和乙腈（ACN）中，反应能垒分别为 7.12 kcal/mol、7.25 kcal/mol、7.65 kcal/mol 和 8.15 kcal/mol。

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引用次数: 0

ESIPT-induced intersystem crossing leads to tautomer fluorescence quenching for 3-mercapto-2-(4-(trifluoromethyl)phenyl)-4H-chromen-4-one molecule ESIPT 诱导的系统间交叉导致 3-巯基-2-(4-(三氟甲基)苯基)-4H-苯并吡喃-4-酮分子的同系物荧光淬灭

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-24 DOI: 10.1016/j.jphotochem.2024.116111

Meng-Huan Jiang , Mai-Ning Li , Yu Zhao , Yu-Hui Liu , Jun Gao , Chaoyuan Zhu

The excited-state intramolecular proton-transfer (ESIPT) dynamics of 2-(4-(diethylamino)phenyl)-3-mercapto-4H-chromen-4-one (3NTF) and 3-mercapto-2-(4-(trifluoromethyl)phenyl)-4H-chromen-4-one (3FTF) have been investigated using time-dependent density functional theory (TDDFT). Upon photoexcitation, 3NTF exhibits a single fluorescence emission while 3FTF is fluorescence quenched when dissolved in cyclohexane solution. The present study reveals that both species undergo barrierless ESIPT process, and the underlying reason for fluorescence quenching in 3FTF has been elucidated. Specifically, it is concluded that intersystem crossing (ISC) is responsible for the fluorescence quenching in the 3FTF molecule due to the energy gap between the S₁ and T₂ states is only 0.12 eV plus large S₁ → T₂ spin–orbit coupling resulting in a strong interaction between the singlet and triplet states. The present study provides a reference for the fluorescence quenching associated with thiol-hydrogen bond molecules, and it is helpful for further research on ESIPT reactions of sulfur-containing molecules.

利用时间相关密度泛函理论（TDDFT）研究了 2-(4-(二乙基氨基)苯基)-3-巯基-4H-苯并吡喃-4-酮（3NTF）和 3-巯基-2-(4-(三氟甲基)苯基)-4H-苯并吡喃-4-酮（3FTF）的激发态分子内质子转移动力学。在光激发下，3NTF 发出单一荧光，而 3FTF 溶于环己烷溶液时会被淬灭荧光。本研究揭示了这两种物质都经历了无障碍 ESIPT 过程，并阐明了 3FTF 荧光淬灭的根本原因。具体来说，由于 S1 和 T2 态之间的能隙仅为 0.12 eV，加上 S1 → T2 自旋轨道耦合很大，导致单重态和三重态之间的相互作用很强，因此得出结论认为系统间交叉（ISC）是 3FTF 分子中荧光淬灭的原因。本研究为硫醇-氢键分子相关的荧光淬灭提供了参考，有助于进一步研究含硫分子的 ESIPT 反应。

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引用次数: 0

Visible-light-promoted aerobic synthesis of phenanthridinones from biaryl-2-oxamic acids 双芳基-2-氧肟酸在可见光促进下有氧合成菲啶酮类化合物

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-24 DOI: 10.1016/j.jphotochem.2024.116113

Jia-Dong Guo , Chen-Hong Wang , Qiao He , Xiu-Long Yang, Xiao-Ning Guo, Bin Chen, Chen-Ho Tung, Li-Zhu Wu

Phenanthridinones is an important structure found in natural products and biologically active molecules. An intramolecular decarboxylative cyclization of biaryl-2-oxamic acids is here presented to generate phenanthridinones, utilizing organic dye (4CzIPN) as the photocatalyst and base (K₃PO₄) in air at room temperature. The protocol exhibits great functional group tolerance, good to excellent yields, and scaled up application.

菲啶酮是天然产物和生物活性分子中的一种重要结构。本文介绍了利用有机染料（4CzIPN）作为光催化剂和碱（K3PO4）在室温空气中对双芳基-2-氧肟酸进行分子内脱羧环化生成菲啶酮的方法。该方法对官能团有很好的耐受性，产率高至极佳，并可扩大应用范围。

引用次数: 0

Chiral discrimination during photoinduced electron transfer from L/D-tryptophan to electron-excited uranyl ion as a part of UO22+ ⊂ α–CD inclusion complex 作为 UO22+ ⊂ α-CD 包合物的一部分，L/D-色氨酸向电子激发铀酰离子的光诱导电子转移过程中的手性判别

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-24 DOI: 10.1016/j.jphotochem.2024.116109

Regina R. Kayumova, Sergey L. Khursan

Spectral-luminescent research indicates the formation of inclusion complexes during the interaction of uranyl nitrate and α–cyclodextrin (α–CD) in aqueous solutions. The chiral α–CD matrix imparts optical activity to the electronically excited uranyl ion *UO₂²⁺_aq in the clathrate, which manifests itself in the chiral discrimination of the quenching of *UO₂²⁺_aq by tryptophan enantiomers. It was found that the Stern-Volmer constant for D–Trp is 1.8 ± 0.2 times higher than that for L–Trp. A mechanistic explanation for the observed effect is proposed by DFT calculations.

光谱发光研究表明，硝酸铀酰和α-环糊精（α-CD）在水溶液中相互作用时会形成包合物。手性 α-CD 矩阵为凝块中电子激发的尿苷离子 *UO22+aq 带来了光学活性，这种活性表现在色氨酸对映体对 *UO22+aq 的淬灭的手性鉴别上。研究发现，D-Trp 的斯特恩-沃尔默常数是 L-Trp 的 1.8 ± 0.2 倍。通过 DFT 计算，提出了观察到的效应的机理解释。

引用次数: 0

Preparation of cysteine-functionalized graphene quantum dots – Zinc phthalocyanines supramolecular hybrid system and their sono-photochemical studies 半胱氨酸功能化石墨烯量子点-酞菁锌超分子杂化体系的制备及其声光化学研究

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry

Pub Date : 2024-10-24 DOI: 10.1016/j.jphotochem.2024.116108

Gökçe Gökçil , Göknur Yaşa Atmaca , Pınar Şen , Fikrettin Şahin , Ali Erdoğmuş

Current PDT agents often suffer from low singlet oxygen quantum yields, photobleaching, and poor biocompatibility. To address these issues, we propose novel PDT agents that combine the synthesized phthalocyanines with cysteine-functionalized graphene quantum dots (cys-GQDs) for the first time. This combination aims to enhance singlet oxygen production and improve solubility in biological media. In this way, new zinc phthalocyanines with halogen substituents were synthesized for potential use in photodynamic therapy (PDT). Specifically, 2-Bromo-4-methylphenol zinc (II) phthalocyanine (2a) and 2-chloro-4-methylphenol zinc(II) phthalocyanine (2b) and their graphene quantum dots derivatives were synthesized and characterized. The photochemical, sonochemical, and sono-photochemical properties of these compounds were analyzed, focusing on their efficiency in singlet oxygen production. Our studies of the 2a@cys-GQDs and 2b@cys-GQDs conjugates demonstrated higher singlet oxygen yields, suggesting their enhanced potential for clinical applications.

目前的光透射疗法制剂往往存在单线态氧量子产率低、光漂白和生物相容性差等问题。为了解决这些问题，我们首次提出了将合成的酞菁与半胱氨酸功能化石墨烯量子点（cys-GQDs）相结合的新型光导放疗药物。这种组合旨在提高单线态氧的产生，并改善其在生物介质中的溶解度。通过这种方法，我们合成了具有卤素取代基的新型锌酞菁，有望用于光动力疗法（PDT）。具体而言，合成并表征了 2-溴-4-甲基苯酚锌（II）酞菁（2a）和 2-氯-4-甲基苯酚锌（II）酞菁（2b）及其石墨烯量子点衍生物。我们分析了这些化合物的光化学、声化学和声光化学特性，重点研究了它们产生单线态氧的效率。我们对 2a@cys-GQDs 和 2b@cys-GQDs 共轭物的研究表明，它们具有更高的单线态氧产率，这表明它们具有更高的临床应用潜力。

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引用次数: 0

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