Materials Today Bio
·
2025
·
IF 10.2
Weijie Wang,Chenguang Sun,Linhao Jing,Yaning Xia,Shuijun Zhang,Yupeng Shi
The integration of chemotherapy and phototherapy for treating advanced liver cancer has gained considerable attention. However, challenges such as short drug retention times significantly impact patient prognosis. We introduce a light-triggered nanosystem that employs molecular aggregation control for PTT and sustained chemotherapy. This nanosystem, known as Reg/IR783@CM nanoparticles (RIMNPs), consists of a core-shell carrier-free nanodrug self-assembled from the chemotherapy drug regorafenib (Reg) and the photothermal agent IR783, coated with a homologous liver cancer cell membrane. The developed core-shell nanocarrier exhibits excellent water dispersibility, high drug load, extended blood circulation, and tumor site enrichment. Upon light exposure, the nanosystem provides outstanding near-infrared imaging and robust photothermal effects. Concurrently, light exposure accelerates the degradation of the outer IR783 layer, resulting in regorafenib exposure and triggering secondary assembly, which significantly enhances drug retention at the tumor site. Our findings indicate that the nanosystem effectively suppresses tumor growth by combining photothermal therapy with the inhibition of tumor cell proliferation and angiogenesis, and by modulating tumor-associated macrophages. Notably, this nanosystem also demonstrates low cytotoxicity and high biocompatibility. This study presents a novel light-driven in-situ assembly strategy, offering a simplified and effective approach for constructing tumor imaging and treatment systems.
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DOI
PubMed
高影响因子
ACS Applied Electronic Materials
·
2025
·
IF 4.7
Can Li,Yunjiao Gu,Xiaoman Li,Chenlu Mao,Fenghua Liu,Shuxue Zhou,Chengjian Chen,Weiping Wu
Optoelectronic synapses, capable of perceiving and retaining external visual information, are ideally suited for the development of future biomimetic eyes and visual automation systems. Organic field-effect transistors (OFETs) have emerged as a powerful platform for artificial neuromorphic computing systems. However, intricate design and fabrication of devices are required to modulate the light-response ability and the charge transfer at the interface. In this study, we successfully fabricated a [1]benzothieno[3,2-b][1]benzothiophene (Ph-BTBT-12) UV-sensitive synaptic transistor, exhibiting prominent visual synaptic behavior. This was achieved by functionalizing the dielectric layer with light-responsive azobenzene (AZO) derivatives through sequential reactions with silanes, significantly improving the performance of OFET-based synapses. By adjustment of the silane precursors and thus control of the number of AZO groups grafted on the interface, the light sensitivity of the as-fabricated photonic synapse is easily adjusted. The responsivity (R) and specific detectivity (D*) of these AZO-grafted OFET have reached as high as 23.9 A/W and 5.4 × 1010 cm Hz0.5 W–1. The superior UV sensitivity and synaptic behavior of the OFET with a densely grafted AZO interface stem from the efficient capture and retention of photogenerated electrons at defect sites, facilitated by the photoisomerization of AZO. Proof-of-concept demonstration by UV light pulses to simulate multiple brain activities, such as perception, processing, and memory of visual information, uncovers its potential in artificial intelligence and enlightens a research direction for developing neuromorphic devices.
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DOI
高影响因子
CHEMICAL PHYSICS LETTERS
·
2020
·
IF 2.029
Xiaoya Bu,Yan-gai Liu,Baochen Wang,Ruiyu Mi,Ziyao Wang,Zhaohui Huang
The Eu 2+ activated Ca 8 ZnGd(PO 4 ) 7 :Eu 2+ green light emitting phosphors and Eu 2+ /Mn 2+ co-doped tunable light emitting phosphors Ca 8 ZnGd(PO 4 ) 7 :Eu 2+ ,Mn 2+ were successfully synthesized via the solid-state reaction method. The X-ray powder diffraction measurements and Rietveld refinement were used to assess the phase composite and crystal structure. The photoluminescence properties, diffuse reflection spectrum, chromaticity coordinates and fluorescence decay curves of the samples were investigated. It has been confirmed that the resonant type Eu 2+ →Mn 2+ energy transfer occurs via a dipole-quadrupole interaction. With various Eu 2+ /Mn 2+ molar ratios, the spectrum-tunable phosphors are obtained from green (0.183, 0.335) to white (0.297, 0.298).
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
·
2023
·Vol. 98
·期 9
·2136-2145
·
IF 3.4
Long Wang,Liu-Lin Zhao,Qin-Yuan He,Dan-Dan Shao,Shi-Peng Sun,Xue-Li Cao
BACKGROUND Desalination membranes have been widely in demand for separating dyes and salts. However, dyes are easily adsorbed on/in the membranes, deteriorating membrane performance. Coupling photocatalysis and membrane separation might be a promising strategy for efficiently alleviating membrane fouling. Aiming at the defects of single catalyst, this work constructed photocatalytic membranes based on heterostructured Fe 3 O 4 -doped g-C 3 N 4 (FeCN)/TiO 2 catalysts by successively filtrating FeCN aqueous dispersion and titanium butoxide/isopropanol solution on the hydrolyzed polyacrylonitrile substrate. RESULTS The H-bonds among TiO 2 , FeCN and substrate lead to excellent load stability of the photoresponsive layer. Due to the low-potential conduction band and high conductivity of Fe 3 O 4 and the low-potential conduction band of TiO 2 in FeCN/TiO 2 , electrons can be more easily transferred to guarantee the high separation efficiency of electrons and holes. Hence the membrane not only exhibited superior permeability (104 L m −2 h −1 bar −1 ) and dye desalting performance (Coomassie brilliant blue R250 rejection of >98.80% and NaCl rejection of <7.00%), but also displayed highly efficient and stable dye photodegradation. CONCLUSION The degradation efficiency surpassed that reported in the literature in comparable circumstances, and the recovery rate of permeability still reached 89.12% after three fouling–photodegradation cycles. This work provides new opportunities for designing high-efficiency self-cleaning membranes to solve membrane fouling based on low-cost materials. © 2023 Society of Chemical Industry (SCI).
研究领域:
材料科学
·
环境工程
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DOI
高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 4.7
Nan Shi,Kangjia Ji,Tong Xu,Peng Li,Fushan Wen,Dong Liu
Solar-driven interfacial water evaporation is a promising technology for sustainable freshwater production. In this study, a series of thermo-switchable Janus hydrogel evaporators were fabricated via a facile copolymerization of N-isopropylacrylamide and acrylamide, using lignin methacrylate as the dual-functional photothermal cross-linker. No additional light absorbers or cross-linkers were required in the preparation. Under illumination, the Janus structure, featuring a reduced-hydrophilic top surface and a highly hydrophilic bottom layer, was induced in situ by the photothermal-thermoresponsive cascade, avoiding mismatches inherent in conventional predesigned structural or compositional asymmetry. The asymmetric architecture synergistically suppressed salt crystallization, relieved heat loss, and facilitated fast water transportation, resulting in an evaporation rate of 2.46 kg·m–2·h–1 under 2 sun irradiation in deionized water. The evaporation rates exceeded 2.34 kg·m–2·h–1 in 3.5 wt % NaCl and 2.25 kg·m–2·h–1 in real seawater, slightly degraded when compared to that in freshwater. In the dark, the hydrogel recovered its full hydrophilicity, which could completely dissolve the accumulated surface salt within 3 h. The light-adaptive dynamic Janus switching and hydrophilicity alternation offered a feasible route for sustainable and diurnal solar desalination, enabling daytime evaporation and nighttime regeneration. This capability was validated by stable evaporation performance during the 7 day outdoor seawater evaporation experiment. The integration of photothermal conversion and covalent cross-linking into the single lignin-derived component ensured the stability of the hydrogel for long-term evaporation and provided a promising avenue for developing simple and robust biomass-based solar-driven evaporators.
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DOI
高影响因子
Photonics
·
2026
·Vol. 13
·期 2
·108
·
IF 1.9
Chenyang Fan,Chengzhao Luo,Yanhui Ding,Siwen Xia,Junlong Wu,Yunpeng Xiao,Yu Chen
Perovskite quantum dots (PQDs) based on CsPbX3(X = Cl, Br, I) have attracted extensive attention due to their outstanding optoelectronic properties; however, their practical applications are hindered by poor environmental stability. In this work, a sequential surface-modification strategy is developed to address these limitations. First, CsPbBr3PQDs are passivated with (3-aminopropyl) triethoxysilane (APTES), which reduces surface defects and enhances the photoluminescence quantum yield (PLQY) from 38.5% to 74.4%. Subsequently, a dense silica shell is constructed via in situ hydrolysis of tetramethyl orthosilicate (TMOS), further improving the PLQY to 95.6% and significantly boosting environmental stability. Structural and optical characterizations confirm effective defect passivation and suppress non-radiative recombination, with carrier lifetimes extended from 2.5 ns to 36.9 ns. Remarkably, the silica-coated PQDs retain over 50% of their initial emission intensity after 100 min of water immersion, far exceeding the stability of uncoated counterparts. Furthermore, when integrated with a commercial K2SiF6: Mn4+red phosphor and a blue light-emitting diode (LED) chip, the resulting white LED (WLED) exhibits a wide color gamut covering 104% of the National Television System Committee (NTSC) standard and Commission Internationale de l’Éclairage (CIE) coordinates of (0.323, 0.331), closely matching standard white light. Importantly, only the silica-coated PQDs maintain a stable electrically driven device emission spectrum after water exposure.
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DOI
高影响因子
ACS Applied Engineering Materials
·
2026
·
IF 3.5
Rui Fang,Weiqi Xu,Chen Yuan,Di Sun,Yanchuan Guo,Yisheng Xu
To address the challenge of antibiotic resistance in wound healing, we developed a functional electrospun fiber membrane utilizing a nonantibiotic antimicrobial strategy. Zinc phthalocyanine (ZnPc), a potent photosensitizer, was encapsulated into NPs exhibiting dual photothermal and photodynamic properties via flash nanoprecipitation (FNP). The resulting ZnPc nanoparticles (NPs) demonstrated a high photothermal conversion efficiency of 34.6% and robust photodynamic activity under 660 nm laser irradiation. These nanoparticles were incorporated into a polycaprolactone/gelatin (ZnPc-PG) nanofibrous membrane. The membrane demonstrated 99% bactericidal efficiency against Staphylococcus aureus and Escherichia coli within 5 min of laser irradiation through synergistic photothermal and photodynamic therapies. In vivo experiments confirmed that the ZnPc-PG membrane effectively accelerated wound healing and suppressed inflammatory responses in infected wounds while exhibiting excellent biocompatibility. This study provides an effective strategy for developing functional wound dressings for treating bacterial wound infections.
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DOI
高影响因子
Advanced Materials Interfaces
·
2021
·Vol. 8
·期 7
·2002175
·
IF 6.147
Lu Hou,Yihua Zhu,Jingrun Zhu,Xuyan Li,Feng Zeng,Tingyu Yang,Yiqin Gong,Jianhua Shen,Chunzhong Li
Mn-doped 2D perovskites are emerging as good candidates for light-emitting applications due to their excellent optical and electrical properties. Major synthetic routes, solid-state grinding and high-temperature solution synthesis, are extensively studied to prepare Mn-doped 2D perovskites. However, complicated synthesis, small-scale yields, and poor-stability impede their widespread applications. Herein, a one-step acid-solution-assisted method is exhibited for gram-scale production of Mn-doped 2D (C 8 H 17 NH 2 ) 2 PbBr 4 with a solid yield of 1.35 g products out of 3 mL solvent. After Mn-doped 2D (C 8 H 17 NH 2 ) 2 PbBr 4 being stored in the air for 90 days, the photoluminescence (PL) quantum yield of powders has minor changes, showing good stability. Phosphor-converted monochrome light-emitting diodes (LEDs) are fabricated. After the LEDs work 6 h under a voltage of 3 V, their PL spectra have no obvious change, showing a great potential in optoelectronic devices. This study provides a new effective strategy for large-scale synthesis of ultrastable Mn-doped 2D perovskites, which is expected to provide inspiration for the industrial optoelectronic applications of perovskites.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
Small
·
2023
·Vol. 20
·期 16
·2307786
·
IF 13.3
Jiefei Sui,Pengpeng Liu,Yifan Jia,Ruiling Guo,Lixia Bao,Jin Zhao,Lulu Dong,Yufei Wang,Weichao Lin,Yijing Liu,Jiliang Wang
To date, transforming environmental energy into electricity through a non-mechanical way is challenging. Herein, a series of photomechaelectric (PME) polyurethanes containing azobenzene-based photoisomer units and ionic liquid-based dipole units are synthesized, and corresponding PME nanogenerators (PME-NGs) to harvest electricity are fabricated. The dependence of the output performance of PME-NGs on the structure of the polyurethane is evaluated. The results show that the UV light energy can directly transduce into alternating-current (AC) electricity by PME-NGs via a non-mechanical way. The optimal open-circuit voltage and short-circuit current of PME-NGs under UV illumination reach 17.4 V and 696 µA, respectively. After rectification, the AC electricity can be further transformed into direct-current (DC) electricity and stored in a capacitor to serve as a power system to actuate typical microelectronics. The output performance of PME-NGs is closely related to the hard segment content of the PME polyurethane and the radius of counter anions in the dipole units. Kelvin probe force microscopy is used to confirm the existence of the PME effect and the detailed mechanism about the generation of AC electricity in PME-NGs is proposed, referring to the back and forth drift of induced electrons on the two electrodes in contact with the PME polyurethanes.
研究领域:
材料科学
·
能源技术
·
光电转换
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DOI
高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2024
·Vol. 26
·期 38
·25232-25239
·
IF 2.9
Jielong Li,Rongbin Deng,Muci Li,Jingwei Wu,Bingyu Wang,Liming Liu,Zichuan Yi,Honghang Wang,Xiaowen Zhang
Light emission from carbon dots (CDs) is of great interest in both electroluminescence and photoluminescence. Herein, we construct electroluminescent and photoluminescent light-emitting diodes (LEDs) from emitters of CDs. The electroluminescent LED with host–guest-doped dual emissive layers (EMLs) of [poly(9-vinylcarbazole) (PVK)-CDs] × 2 gives satisfactory electro-optical properties, with maximum luminance of 560 cd m−2 at 16 V, luminous efficiency of 0.183 cd A−1, power efficiency of 0.082 lm W−1, and external quantum efficiency of 0.25%, which are superior to the counterparts with single-EML of CDs, single-EML of [PVK-CDs], and triple-EMLs of [PVK-CDs] × 3. These enhanced properties are rationally ascribed to optimization of the device architecture, carrier balance improvement, and reduction in concentration-induced quenching. The electroluminescent LEDs also show color evolution from PVK to CDs, and/or to the PVK/CDs interface, with increasing driving voltages, owing to incomplete energy transfer from PVK to CDs. Highly efficient photoluminescent LEDs with 365- and 395-nm UV excitation are demonstrated. With a CDs : polyvinyl pyrrolidone ratio of 1 : 3, the 365-nm excited photoluminescent LED gives a maximum luminance of 512 347 cd m−2 with a power efficiency of 25.2 lm W−1, while the 395-nm excited photoluminescent device gives a maximum luminance of 670 954 cd m−2 with a power efficiency of 22.0 lm W−1, with both showing yellow emission. Our experiments provide some new ideas for broadening CD applications and advancing LEDs.
研究领域:
材料科学
·
光学工程
·
电子工程
✓ 已验证
DOI
高影响因子
Materials Today Physics
·
2021
·
IF 9.298
Jiangdong Gong,Huanhuan Wei,Yao Ni,Shuo Zhang,Yi Du,Wentao Xu
Optoelectronic synapses that integrate and process light and electric signals simultaneously received giant attention for the development of artificial visual system. However, to mimic robust perception and processing ability of biological vision demands exceptional photoresponse and tunable plasticity of the optoelectronic synaptic units. Herein, we demonstrated a Methylammonium (MA) halide-doped perovskite artificial synapse. The introduction of MA halide additives into formamidinium lead iodide (FAPbI 3 ) can effectively improve the film morphology and crystallinity , leading to a wider regulatory range of synaptic plasticity. The effect of light irradiation on shaping synaptic plasticity was revealed to realize important synaptic functions. With the assistance of light stimuli, high-order learning behaviors have been achieved, including dynamic logic operation and conditioned reflex. A higher pattern recognition accuracy (88.2%) of handwritten digits was achieved in simulation. Moreover, the correlation between light irradiation and the hybrid perovskite-based artificial synapse can be utilized to perceive environmental change and to tune information processing efficiency. These results provide a new strategy for constructing future artificial intelligent system.
研究领域:
材料科学
·
神经形态计算
·
光电技术
✓ 已验证
DOI
高影响因子
ACS Applied Electronic Materials
·
2024
·
IF 4.3
Yanjun Duan,Bingxin Yang,Yujiao Ma,Chao Gao,Shengren Li,Lin Yang,Zhiqiang Li
High-quality photodetectors are essential for getting external information, especially those operating in the near-infrared range. These devices play a critical role in remote communication systems by effectively converting light into electronic signals effectively. The emerging copper-based chalcogenides have attracted attention for thin film solar cells and self-powered photodetectors. However, they can detect only certain wavelengths of infrared light because of their wide bandgaps. In this work, we prepared a hexahydroxy chalcogenide copper–cadmium-zinc–tin sulfur–selenium (CCZTS) absorber with a narrow bandgap of 0.87 eV. Then, we developed a self-powered CCZTS/cadmium sulfide (CdS) thin film photodetector. Furthermore, the manganese (Mn2+) dopant is incorporated into the CdS buffer layer to improve the heterojunction interface properties. As a result, the devices based on the CCZTS/CdS:Mn heterojunction exhibit high responsivity, reduced dark current, and a fast response speed in the wavelength range of 300–1550 nm. At 1319 nm, it has a responsivity of 0.96 A W–1, a detectivity of 3.79 × 1012 Jones. In addition, the resulting CCZTS-based photodetector is successfully integrated into an optical communication system as an optical signal receiver. Our results demonstrate that it has a significant potential for low-cost infrared photodetection and optical communications.
研究领域:
材料科学
·
光电子学
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DOI
高影响因子
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