JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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2023
·Vol. 98
·期 9
·2136-2145
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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
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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产品关联
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
Nature Communications
·
2025
·Vol. 16
·期 1
·1-14
·
IF 15.7
Yuan Chunyu,Yin Hongfei,Li Jing,Zhang Yuxi,Chen Hongji,Xiao Dongdong,Wang Qizhao,Zhang Yongzheng,Xue Qi-Kun
Photocorrosion triggered by the unconsumed photogenerated holes severely deteriorates the photocatalytic efficiency and stability of semiconductor photocatalysts, especially in seawater with complex ions. Here, we report a hierarchical hollow ZnIn 2 S 4 heterostructure integrating an inner CoO x nanocage and atomically dispersed Pt anchoring at surface S vacancies for hydrogen evolution from natural seawater (23.88 mmol g −1 h −1 ) and pure water (48.99 mmol g −1 h −1 ) under visible light. The dynamic Co 2+ /Co 3+ self-reconstruction of the inner CoOx cage effectively consumes photogenerated holes, while the outer Pt 1 single atoms localized at S vacancies serve as electron sinks to facilitate electron extraction and proton reduction. Benefiting from the dynamic hole-scavenging mechanism via oxidation self-reconstruction, the Pt 1 -ZnIn 2 S 4 @CoO X photocatalyst exhibits enhanced durability against alkali metal ions in seawater and maintains high reactivity for long-term hydrogen evolution. This work underscores the importance of light-induced transition metal dynamic self-reconstruction within hierarchical hollow heterostructure photocatalysts for sustainable hydrogen evolution.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.7
Wanying Zhang,Kaihuai Zhuo,Jie Chen,Tongtong Wang,Xuanyang He,Mengjie Li,Weilin Gao,Yiran Zhao,Xue Yang,Zhuoyin Peng,Xiaoyu Zhang,Yingwei Wang,Keqiang Chen,Guogang Li
Surface ligands are crucial for perovskite quantum dot (PQD) optoelectronics. However, long alkyl chains limit charge transport, while short chains destabilize their soft lattice, presenting a stability–mobility dilemma. Moreover, surface-bound protonated primary amines are susceptible to deprotonation, accelerating performance decay and structural collapse. In this work, we introduced tetrabutylphosphonium bromide (TBPB) as a surface passivation ligand to overcome these limitations. TBPB combines minimal molecular polarity—enabling a short chain for superior charge transport—with a fully coordinated phosphonium center that resists deprotonation and passivates halogen vacancies. This yields quantum dots with near-unity PLQY and robust stability, leading to LEDs achieving a maximum external quantum efficiency (EQE) of 24.28% and luminance of 122,786 cd m −2 , far surpassing control devices. Further shortening the ligand chain increases EQE to 27.89% but at the cost of severe luminance loss, underscoring the delicate balance in ligand engineering.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF CONTROLLED RELEASE
·
2026
·
IF 11.5
Ping Li,Qianying Li,Lu Ding,Wan Zhang,Shiyu Peng,Hui Wei,Xuanqi Zhao,Tingtao Chen,Yonghua Xiong,Benzhong Tang,Xiaolin Huang
Bacteria are emerging as a promising tool for targeted cancer therapy due to their innate tumor-homing ability, high mobility, and capacity to rapidly colonize in the tumor microenvironment (TME). However, bacterial cancer therapy (BCT) alone has not proven fully effective. Herein, we present an innovative bio-therapeutic system, TEPy@VNP-D, which integrates genetically engineered Salmonella typhimurium VNP20009 carrying humanized DNase I toxin plasmids (VNP-D) with an aggregation-induced emission photosensitizer (TEPy), enabling photoimmunotherapy for melanoma. Leveraging the tumor-targeting properties of VNP20009, TEPy@VNP-D ensures effective delivery of both TEPy and DNase I to tumor sites, promoting the intratumoral accumulation of cytotoxic agents. Upon light activation, TEPy@VNP-D not only disrupts bacterial structures, facilitating plasmid release but also directly kills cancer cells through the generation of cytotoxic reactive oxygen species. Accordingly, the synergistic effects of photodynamic therapy (PDT) from TEPy and tumor lysis by VNP-D result in significant tumor suppression. Furthermore, TEPy@VNP-D enhances both innate and adaptive immune responses by triggering immunogenic cell death and remodeling the immunosuppressive TME. When combined with anti-PD-L1 antibody, TEPy@VNP-D elicits remarkable synergistic effects under light irradiation, effectively eliminating distant abscopal tumors and establishing robust immune memory to prevent recurrence and rechallenge. Together, the TEPy@VNP-D-mediated BCT synergized photoimmunotherapy strategy offers a powerful, tailored approach to cancer treatment, achieving cooperative antitumor activity with reduced toxicity. This promising approach holds great potential for advancing combination cancer therapies.
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
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2016
·
IF 7.145
Huabing Liu,Huilin Hou,Fengmei Gao,Xiaohong Yao,Weiyou Yang
Bismuth vanadate (BiVO4) is considered as a potentially attractive candidate for the O2 evolution and photodegradation of organic pollutants. In an effort to develop visible-light-driven photocatalysts with high activities, the thoroughly mesoporous BiVO4 nanofibers were fabricated via a foaming-assisted electrospinning strategy. It was found that the introduced foaming agent of diisopropyl azodiformate within the solutions plays a crucial role on the formation of thoroughly mesoporous BiVO4 nanofibers, making their growth tunable. The obtained mesoporous BiVO4 nanofibers possess well-defined one-dimensional mesoporous architectures with high purity in their morphology and a surface area of 22.5 m2/g, which is ∼4 times that of conventional solid counterparts (5.8 m2/g). Accordingly, they exhibit much higher efficient photocatalytic activities toward the degradation of rhodamine B under visible-light irradiation, which is 3 times that of conventional solid counterparts, suggesting their promising application as novel and efficient photocatalysts for water purification.
研究领域:
材料科学
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纳米技术
·
环境科学
·
光催化
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2020
·
IF 10.652
Qinzhe Li,Yewei Zhang,Xuan Huang,Dongliang Yang,Lixing Weng,Changjin Ou,Xuejiao Song,Xiaochen Dong
Drug-resistant bacterial infection is a serious threat to the survival and health of human. Clinically, the conventional therapy for subcutaneous infections generally involves the systemic administration of high dose of antibiotics and frequently causes detrimental side effects in normal tissues. To overcome this issue, an acidity-responsive near infrared (NIR) light-triggered injectable hydrogel was designed for non-antibiotic local treatment. Herein, poly(ethylene glycol) diacrylate (PEGDA) was used as hydrogel matrix, polyoxometalate (POM) as acidity-enhanced photothermal agent and 2,2′-azobis[2-(2-imidazolin-2-yl) propane] dihydro-chloride (AIPH) as thermo-responsive initiator. After the hydrogel precursor solution (AIPH/POM/PEGDA) was injected into the acidic infected tissue, the aggregated POM with strong photothermal property was restricted to the site of abscess. Upon excitation at 1060 nm laser, the heat generated from POM would trigger alkyl radical formation from AIPH and thereafter achieving NIR-triggered in situ gel. Consequently, the POM and AIPH were trapped in Gel(AIPH/POM) and exhibited long-term retention in the abscess for further repeated local photothermal/thermodynamic antibacterial therapy. In vitro antibacterial evaluation indicated that the system could effectively eradicate drug-resistant bacteria through destroying bacteria integrity and producing the noxious alkyl radical under NIR light illumination. Moreover, the bacterial burden of abscess was significantly relieved and more collagens were deposited after the administration of Gel(AIPH/POM) and repeated NIR light. Meanwhile, no apparent adverse effect was observed during the treatment. This work not only provides a light-triggered gelation for local photothermal/thermodynamic synergistic therapy, but also offers a novel strategy for the rational design of light-responsive intelligent antibacterial hydrogels.
研究领域:
生物医学工程
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药学
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材料科学
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抗菌治疗
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光热治疗
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智能药物递送系统
✓ 已验证
DOI
高影响因子
Device
·
2023
·
IF 0
Qiaoyan Ma,Mengen Ma,Liming Liu,Peng Yang,Wujie He,Xing Zhang,Jianzha Zheng,Cuiling Zhang,Chong Liu,Shaohang Wu,Yousheng Wang,Yaohua Mai
The defects presented at three-dimensional wide-band-gap (WBG) perovskites can be passivated by the in situ formed two-dimensional/three-dimensional bulk heterostructures incorporating long-chain alkylamine oleylammonium ligands. As-fabricated WBG perovskite solar minimodules (PSMs) with six subcells connected in series yield record efficiencies of 19.20% and 43.54% with superb high open-circuit voltage ( V oc ) of 7.40 V and 6.49 V (average V oc of 1.233 V and 1.08 V for each subcell) under one-sun and light-emitting diode (1,000 lux and 3,000 K) illumination, respectively. Such results represent an important step in the area of indoor photovoltaics and also further confirm that indoor WBG PSMs have great potential to achieve higher efficiency toward the theoretical limit.
研究领域:
材料科学
·
能源工程
·
光学
✓ 已验证
DOI
Advanced Sensor and Energy Materials
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2022
·
IF 0
Wen-Xuan Fu,Ping Zhou,Wei-Liang Guo,Bin Su
As one of most advanced transduction techniques, electrochemiluminescence (ECL), such as that generated by tris(2,2′-bipyridyl)ruthenium (Ru(bpy) 3 2+ ), has been extensively used in chemical sensing and analysis, but the reaction mechanism has not been fully resolved. Aiming at gaining insightful mechanistic information on the coreactant system involving (Ru(bpy) 3 2+ ) and tri- n -propylamine (TPrA), herein we investigate the variation of thickness of ECL layer (TEL) with the concentration ratio of (Ru(bpy) 3 2+ ) to TPrA ( c Ru / c TPrA ) by ECL microscopy. Using carbon fiber as the working electrode, TEL was observed to grow with the increase of c Ru / c TPrA remarkably. In conjunction with finite element simulations, the extension of ECL layer was rationalized to be associated with the incremental contribution of so-called “catalytic route”. This route offers an additional channel of generating remote light emission in solution, apart from surface-confined emission produced by the “oxidative-reduction route”. Given the quantitative analysis of coreactant-type analytes is often based on the calibration curve, namely a graph generated by plotting the measured light intensity of a series of standard solutions against their concentrations, the contribution of “catalytic route” particularly at a low concentration of analyte (equivalent to a relatively large c Ru / c TPrA ) is favorable to the analytical sensitivity. Moreover, the presence and absence of this route will result in a nonlinear and linear calibration curve, respectively, for example in the detection of TPrA and pyruvate. The results highlight the microwire-based imaging approach can provide insightful mechanistic information and help unveil the concentration dependence of measured ECL intensity for precise quantitative analysis.
研究领域:
分析化学
·
电化学
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生物传感
✓ 已验证
DOI
Functional Materials Letters
·
2024
·
IF 1.2
Fengyang Zhao,Runmeng Yu,Yongjian Jiang
Herein, a nitrogen, carbon co-doped anatase and rutile double-phase waxberry-shaped TiO 2 composite photocatalyst is prepared with the one-step simple hydrothermal synthesis process, in which P25 was used as the precursor, and urea as the source of nitrogen and carbon. A suitable valence band position (2.52 eV) is provided by N–C–TiO 2 , with more active species (e.g. h + , e − , • OH and • O 2 ) being formed on the active catalysis surface, which is helpful to the redox reaction. Further comparison of experimental results ( E g = 3.01 eV) proved that the novel N–TiO 2 has preferable photocatalytic activity. In this study, an ingenious nitrogen- carbon co-doping structure was designed for the improvement of TiO 2 photocatalytic performance, which is much for reference of this method to other photocatalyst designs.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yu Xu,Haoyu Qi,Mingming Sun,Zongxu Liu,Qing Liu,Kang Li,Wei Guo
While light-driven motors that can exhibit characteristic response have attracted significant research attention, they generally lack a stable and editable structure for exploration the versatile motions and their practical applications. Herein, a MXene/Polyurethane (PU) motor with robust “brick-and-mortar” structure was configured as the platform to study the light-driven self-propelled behaviors and mechanisms. Our experimental and theoretical results demonstrated that the external near-infrared laser (NIR) light stimulus triggers the photothermal Marangoni effect to create the local difference in surface tension, which serves as the driving force to overcome the flow resistance. The MXene/PU motor floating on the water phase exhibited programmable motion under the irradiation of NIR light, especially, complex motions such as directed motion, clockwise and counterclockwise rotations, and intermittent motion (alteration between resting and moving states). More interestingly, the MXene/PU motor can not only move along any complicated routes such as maze but also execute the stir task at designated place on the water surface. We believe that the fabricated MXene/PU motor has potential to fundamentally solve challenges in cargo transport and beyond, and the concept of remote motion-control of micro-objects by external stimulus can inspire further explorations of design of self-propelled motors and systems.
研究领域:
材料科学
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纳米技术
·
光学工程
✓ 已验证
DOI
高影响因子
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