INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Tian Xing,Jiawei Wang,Jiayu Zhang,Hao Liu,Lijie Xu,Wen Zhang,Ruijin Hong,Chunxian Tao,Qi Wang,Hui Lin,Zhaoxia Han,Dawei Zhang
Ag 2 O-Ag/CH 3 NH 3 PbBr 3 (MAPbBr 3 ) heterojunction composites were synthesized using a strategy that combines one-step spin coating, electron beam evaporation, and laser irradiation. Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) analyses confirmed the formation of dense and uniform nanoparticles on the sample surface after laser irradiation, as well as the successful introduction of oxygen vacancies. These nanostructures and oxygen defects contribute to the emergence of a broad plasmonic resonance absorption peak and enhance the local electromagnetic field intensity, thereby promoting stronger nonlinear optical effects. Z -scan results show that the Ag 2 O-Ag/MAPbBr 3 heterojunction composites exhibit strong saturable absorption (SA), in contrast to monolayer Ag 2 O–Ag or MAPbBr 3 , due to efficient interfacial charge transfer that suppresses reverse saturable absorption (RSA) arising from excited-state absorption and multiphoton absorption. The nonlinear optical absorption was effectively tuned by laser irradiation with different pulse widths. The maximum third-order nonlinear absorption coefficient of the heterojunction was measured to be −7.96 × 10 −7 cm/W. In addition, the finite-difference time-domain (FDTD) simulation results were in good agreement with the experimental data. These results indicate that the as-synthesized Ag 2 O-Ag/MAPbBr 3 heterojunction composites have promising potential for applications in nonlinear optical devices.
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NANOTECHNOLOGY
·
2025
·Vol. 36
·期 30
·305101
·
IF 2.8
Gaojian Liu,Wenjing Wen,Xuan Zhao,Yanan Jing,Hao Li,Xulong Fan,ZiXuan Huang,Gaofeng Liang
Breast cancer is the most prevalent fatal cancer among women worldwide and the leading cause of death for women. Ferroptosis is a form of programmed cell death that relies on iron and is non-apoptotic, triggered by the inhibition of the cellular antioxidant system. Photodynamic therapy (PDT) employs photosensitizers to produce reactive oxygen species (ROS), increasing oxidative stress in tumor cells. When combined with ferroptosis, PDT can work synergistically to regulate intracellular redox balance. In this study, we designed engineered nano-erythrocyte membranes for targeted delivery of Chlorin e6 (Ce6) and cisplatin (DDP) to enhance breast cancer treatment. By using mild ultrasound, Ce6 and DDP were co-loaded onto the nano-erythrocyte membranes, combining ferroptosis inducers and photosensitizers to combat breast cancer. To improve targeting capability towards breast cancer, RGD cyclic peptides were modified onto the nano-erythrocyte membranes through a thiol–maleimide coupling reaction. The RGD-modified nano-erythrocyte membranes co-loaded with Ce6 and DDP not only inherited the good stability and significant biocompatibility of red blood cell membranes but also promoted the uptake by breast cancer cells, effectively inducing ferroptosis in these cells. In conclusion, this multifunctional ‘natural’ nanodrug delivery system provides an effective and safe method for PDT combined with ferroptosis for breast cancer treatment.
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高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Yu Zhu,Liying Guo,Ruiyue Zhang,Qianqian Tian,Hongzhang Cao,Li Wang,Yu Tang,Liangliang Liu
Hierarchical porous carbon modified with multiple carbonyl ligands (HPC-1) was synthesized for the selective extraction of light rare earth elements. The material was fabricated through a dual-template strategy combined with KOH activation to enhance the specific surface area, followed by surface ligand modification. Structural integrity after activation and functionalization was confirmed by SEM and TEM analyses, while FTIR, XPS and TGA collectively verified the covalent bonding of carbonyl groups. Adsorption studies revealed rapid equilibrium kinetics and enhanced light rare earth element selectivity, achieving a saturation capacity of 29.11 mg g−1. FTIR and XPS verified the chemical anchoring of the carbonyl ligand and the coordination mechanism with rare earths, and it was speculated that the metal ions in this system were coordinated with tridentate ligands (e.g., carbonyl and pyridine N), accompanied by physical adsorption in some of the micropores. Density functional theory (DFT) calculations of the difference in binding energies of the ligands and ions further revealed the mechanism of adsorption selectivity. Compared to conventional porous carbons, HPC-1 demonstrates superior acidic stability, reduced column backpressure, and improved reusability, effectively addressing critical challenges in solid–liquid extraction systems. The synergistic combination of hierarchical porosity and tailored surface chemistry establishes HPC-1 as a promising platform for selective light rare earth element recovery.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Na Meng,Yajing Li,Xiaorong Shi,Ziqiang Wang,Junhao Liu,Yutian Xu,Yuanhao Cui,Xinwu Ke,Xueli Li,Boya Hu,Xue Min,Kui Xu,Zhelu Hu,Lingfeng Chao,Yingdong Xia,Qingxun Guo,Yonghua Chen
Thermally evaporated perovskite light-emitting diodes (PeLEDs) have emerged as a promising technology for next-generation display applications. However, achieving high luminance remains a critical challenge. In this study, a significant enhancement in the luminance of fully vacuum-evaporated PeLEDs is demonstrated by optimizing both the crystallinity of perovskite films and hole injection efficiency. A lateral 0D/3D Cs 4 PbBr 6 /MA x Cs 1-x PbBr 3 heterostructure is achieved via co-evaporation of MABr (MA + = CH 3 NH 3 + ), CsBr, and PbBr 2 . Theoretical calculations indicate that MAPbBr 3 , with its lower formation energy, preferentially forms and serves as a nucleation site for the growth of high-quality MA x Cs 1-x PbBr 3 , significantly improving crystallization. Excess CsBr and PbBr 2 react to form Cs 4 PbBr 6 , which passivates defects and confines excitons, thereby enhancing photoluminescence efficiency. The resulting perovskite films exhibit suppressed non-radiative recombination. Additionally, hole injection and transport efficiency are improved through p-type doping, ensuring sufficient carrier injection for high-luminance emission. As a result, the optimized PeLEDs achieve a maximum brightness of 246, 211 cd m − 2 , representing the highest level reported to date for thermally evaporated PeLEDs. These findings underscore the potential of thermally evaporated perovskites for high-brightness display and lighting applications.
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Materials Today Bio
·
2025
·
IF 10.2
Yi Liao,Shengmei Zhou,Andrew J. Quantock,Wei Li,Yuan Xu,Xie Fang,Robert D. Young,Wanling He,Qingjian Li,Houjian Zhang,Ruochen Wang,Yi Han,Hongwei Cheng,Wenjun Li,Lu Peng,Rongrong Zong,Yi Hong,Zhirong Lin,Zuguo Liu
Although cell-encapsulating hydrogels are of tremendous interest in regenerative medicine, few of them have been used in clinics and rarely used natural extracellular matrices as polymer precursors. One successful example is to use riboflavin (RF)/ultraviolet A (UVA) to cross-link corneal collagen, which has been used in clinics to halt disease progression in patients with corneal ectatic diseases. However, high-energy UVA and its action on RF cause tissue damage, particularly irreversible endothelium loss, and thus standard RF/UVA protocol may have limitations in treating patients at the advanced stage with thin cornea. Photo-initiators lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) has high efficiency under visible 405 nm light, and is widely applied in 3D bioprinting to cross-link synthesized monomers. Here, we introduced a new strategy to cross-link cornea using LAP and visible light (VL). The LAP/VL protocol could effectively increase corneal stiffness with equivalent efficiency to the RF/UVA protocol in both porcine and rabbit cornea. As LAP and VL were used, the loss of corneal endothelial and stromal cells was minimized, and epithelial wound healing and stromal cell repopulation were accelerated. In summary, we propose that the LAP/VL protocol is an effective and safe alternate for cornea CXL with advantages for relatively thin cornea. Our study also expands the application scope of LAP, indicating it is a suitable photocatalyst for in situ natural extracellular matrices CXL.
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高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2025
·Vol. 131
·期 6
·1-11
·
IF 2.8
Wang Qun,Bu Ranran,Xu Changyuan,Zhao Fengjiao,Yin Hongming
Tellurite glass samples doped with Er 3+ and Eu 3+ were synthesized by the high-temperature solid phase method. The XRD diffraction pattern shows the amorphous properties of the prepared samples. The luminescence properties of glass samples were analyzed using the absorption spectrum, excitation spectrum, and emission spectrum. The energy transfer mechanism between Er 3+ ions and Eu 3+ ions was studied by changing the concentration of Eu 3+ ions, and the results were verified by measuring the luminescence decay lifetime. It is worth noting that at 380 nm excitation, Er 3+ and Eu 3+ co-doped tellurite glass exhibits remarkable tunable luminescence characteristics: by adjusting the concentration of Eu 3+ ions, the emission color can be flexibly adjusted from green to orangish-red. In addition, by effectively combining the prepared co-doped glass sample with the 380 nm GaN chip, the cold white light emission with CIE coordinates of (0.324, 0.320) was successfully achieved. According to the variable-temperature spectroscopy, at 210℃, the emission peak intensities of the co-doped Er 3+ /Eu 3+ tellurite glass at 547 nm and 613 nm are above 70% of the room-temperature luminescence intensity, demonstrating excellent thermal stability. Graphical
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jie Zeng,Lei Xie,Tianyi Liu,Yanjun He,Weiyan Liu,Qing Zhang,Junyan Li,Xiaofeng Li,Beilei Qiu,Shan Zhou,Qirui Liang,Xudong Wang,Kang Liang,Jinyao Tang,Jian Liu,Lei Jiang,Gang Huang,Biao Kong
In the field of sustainable chemistry, it is still a significant challenge to realize efficient light-powered space-confined catalysis and propulsion due to the limited solar absorption efficiency and the low mass and heat transfer efficiency. Here, novel semiconductor TiO2 nanorockets with asymmetric, hollow, mesoporous, and double-layer structures are successfully constructed through a facile interfacial superassembly strategy. The high concentration of defects and unique topological features improve light scattering and reduce the distance for charge migration and directed charge separation, resulting in enhanced light harvesting in the confined nanospace and resulting in enhanced catalysis and self-propulsion. The movement velocity of double-layered nanorockets can reach up to 10.5 μm s–1 under visible light, which is approximately 57 and 119% higher than that of asymmetric single-layered TiO2 and isotropic hollow TiO2 nanospheres, respectively. In addition, the double-layered nanorockets improve the degradation rate of the common pollutant methylene blue under sustainable visible light with a 247% rise of first-order rate constant compared to isotropic hollow TiO2 nanospheres. Furthermore, FEA simulations reveal and confirm the double-layered confined-space enhanced catalysis and self-propulsion mechanism.
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高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Senyi Gong,Mengdi Shang,Runnan Shao,Sen Li,Li He,Yanfei Cai,Teng Wang,Jian Jin,Zhaoqi Yang
Chemotherapy as a primary treatment for breast cancer is limited due to drug resistance in clinical treatment. The rapid proliferation and invasive biological properties of breast cancer, resulting in intratumoral hypoxia and adaptive antioxidation, are common manifestations of drug-resistant breast cancer. Photodynamic therapy is a potential strategy to overcome drug resistance, but its effectiveness is often limited by tumor hypoxia. In order to overcome the problem of tumor hypoxia and improve the effectiveness of photodynamic therapy, a strategy that employs ZIF-90 nanoparticles simultaneously delivering a hypoxia-induced drug (TPZ) and photosensitizer Ce6 labeled antisense nucleic acid (Ce6-G3139) into breast cancer cells was developed. Owing to the pH responsiveness of ZIF-90, TPZ and Ce6-G3139 are able to be efficiently released inside the tumor microenvironment. First, Ce6-G3139 can perform gene therapy, downregulating the expression of antiapoptotic protein BCL-2 and accelerating cell apoptosis. On the other hand, photosensitizer Ce6 can undergo photodynamic therapy (PDT), producing reactive oxygen species that interfere with the apoptosis mechanism of cells. More importantly, although the continuous consumption of oxygen in PDT aggravates the hypoxic environment of the tumor, the hypoxic-induced chemotherapy drug was further activated. Our research results indicate that the designed strategy targeting the hypoxic microenvironment of drug-resistant breast cancer exhibits significant anticancer effects both in vitro and in vivo, favoring the development of a PDT treatment paradigm that is effective against drug resistance under hypoxic conditions.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Yue Yang,Rong Tang,Yuqi Lei,Di Gao,Houteng Zhao,Samra Jabeen,Yufeng Du,Ya Yang,Chenyi Wang,Xinyue Zhang,Ruijin Yu,Xianchao Du
To realize full-spectrum illumination systems for daily applications, the development of cyan-emitting phosphors capable of addressing the spectral deficiency in the 480-520 nm region (between blue and green emissions) has emerged as a critical research frontier in solid-state lighting technology. In this investigation, a scandium silicate phosphor, KSr 6 ScSi 4 O 16 :Eu 2+ , was initially synthesized via a high-temperature solid-state reaction under a reducing atmosphere. The target compounds crystallize in an orthorhombic system with a centrosymmetric space group of Pnma (No. 62). KSr 6 ScSi 4 O 16 :2 mol%Eu 2+ shows asymmetric broadband mainly at 481 nm under excitation of 359 nm. Based on Gaussian fitting and Van Uitert's equation, the Eu 2+ ion was confirmed to occupy two different coordination environments of Sr 2+ , producing two different luminescent centers at 477 nm and 528 nm. The optimal doping concentration of KSr 6 ScSi 4 O 16 : x Eu 2+ cyan phosphors was founded to be 2 mol%. Within the temperature range of 300 to 480 K, CIE coordinates remain stable during the heating process, and an activation energy of 0.35 eV has been determined. The color rendering index ( R a ) of the full spectrum WLED produced by KSr 6 ScSi 4 O 16 :Eu 2+ , reached 92.5, which is higher than the WLED packaged with commercial powder, effectively supplementing the cyan light component and closer to the full-spectrum lighting LEDs.
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jingkun Wang,Yanqin Miao,Ze Lu,Qi Zhang,Wenhao Guo,Min Zhao,Xinping Zhai,Huayun Du
Stanene nanodots (SnNDs) derived from layered tin have attracted considerable interest due to their conveniently tunable bandgap and topological superconductivity. However, high-yield exfoliation of ultrathin SnNDs is still a challenge due to the short layer spacing and strong binding energy. In this work, atomically thin SnNDs with a uniform size of 2.3 nm are successfully prepared by utilizing imidazolium ionic liquid-assisted exfoliation. The obtained SnNDs possess a wide bandgap of 2.69 eV, along with notable solvent compatibility (well dispersed in both polar and nonpolar solvents) and excellent stability. Furthermore, we construct Ir(ppy)3-based green OLED with hybridizing SnNDs and graphene oxide (GO) as the hole injection layer (HIL). It proves that the application of SnNDs helps to modulate the work function and passivate surface defects of GO, increasing hole mobility and thereby improving the device performance. Compared to the PEDOT:PSS-based control device, the optimized SnNDs-GO-based OLED demonstrates an improvement of 6.56, 41.06, and 8.16% in current efficiency (CE), power efficiency (PE), and external quantum efficiency (EQE), respectively. This work not only introduces a new approach to preparing 2D SnNDs but also creates a novel HIL material for OLED devices.
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高影响因子
ACS Photonics
·
2024
·
IF 6.5
Haixiao Zhao,Chenlin Wang,Chengxi Lyu,Xian Zhao,Baoqing Sun,Yuan Gao
Colloidal quantum dots (CQDs) are promising optical gain media distinguished by their narrow emission spectra and adaptable wavelengths. However, their isotropic nature often results in randomly oriented transition dipoles within laser cavities, thereby reducing their coupling with the optical modes. Here, we propose nanoplatelets (NPLs) as an alternative. By aligning them on a large scale, we ensure well-oriented transition dipoles with the longitudinal modes of Fabry–Perot (F-P) cavities. This alignment enhances coupling with cavity modes, resulting in directional emission and a significant reduction in lasing thresholds by a factor of 2.19. Our approach illuminates pathways for optimizing CQD-based optoelectronic devices by improving light-matter interaction.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Liu Ming,Ehsan Ghasali,Ye Cheng,Congya Zhu,Junsheng Ye,Pengfei Zhang,Saleem Raza,Asif Hayat,Yasin Orooji
High entropy oxide (HEO) has shown great potential in the field of new photocatalytic materials due to its tunable composition and excellent thermal stability. In this paper, a high entropy rare earth oxide Er 2 Tm 2 Yb 2 Lu 2 Ho 2 O 15 composed of pure rare earth elements was synthesized by solid phase reaction method (SRM). Its structural and optical properties were investigated by various characterization techniques such as XRD, TEM, SEM and UV-DRS. The results showed that the material elements were uniformly distributed, with a wide light absorption range and abundant defects. To study the photocatalytic properties of the samples, Congo Red (CR) dye was degraded under visible light irradiation. The results show that the Er 2 Tm 2 Yb 2 Lu 2 Ho 2 O 15 high entropy material has excellent photocatalytic activity, showing a degradation rate of 99.2% to 20 mg/L Congo Red (CR) under visible light, showing remarkable stability in the cycle experiment, showing its potential to degrade organic pollutants. At the same time, free radical scavenging experiments and degradation mechanisms are also discussed. This work has reference value for the study of rare earth-based high entropy oxides.
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