INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Lingkang Yu,Yining Wang,Xiaole Xing,Zheng Xu,Mengmeng Shang
Presently, a multitude of all-inorganic and lead-free metal halide perovskites are chosen as matrices for Cr3+ doping due to their favorable coordination environments, aiming to achieve a near-infrared (NIR) emission. Nonetheless, the acquisition of a more efficient NIR emission remains challenging. Herein, we successfully enhanced NIR luminescence within the Cs2ScCl5·H2O:Cr3+ by codoping Te4+ ions. The weak symmetry of Cs2ScCl5·H2O provides an appropriate crystal environment for the broadband near-infrared emission of Cr3+. The NIR emission from the 4T2 → 4A2 transition of Cr3+ is significantly enhanced due to the energy transfer by the emission of STEs, with a photoluminescence quantum yield (PLQY) of 11.02%. Compared to single doping with Cr3+, the emission intensity of Cs2ScCl5·H2O:Cr3+, Te4+ in the NIR region obtains a 3-fold enhancement, while a new yellow emission is simultaneously obtained. This discovery offers a viable method for achieving efficient NIR emission in lead-free metal halides via codoping with ns2 ions and Cr3+. Additionally, Cs2ScCl5·H2O:Cr3+, Te4+ sample was combined with a 380 nm violet light chip for encapsulation, demonstrating its potential applications in the fields of nondestructive material testing and night vision.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 51
·期 14
·18513-18519
·
IF 5.6
Haixia Zheng,Zhongxiang Shao,Faling Ling,Li Li,Guotao Xiang,Yongjie Wang,Xianju Zhou
The effectiveness of near-infrared phosphor-converted light-emitting diodes (NIR pc-LEDs) is primarily determined by the NIR phosphors. Unfortunately, there is still a shortage of effective broadband near-infrared luminescent materials which emit NIR light with wavelengths exceeding 800 nm. Herein, Cr 3+ doped SrGe 4 O 9 phosphors were prepared by a high-temperature solid-state reaction. The phosphor exhibits a wide NIR emission spanning from 650 to 1250 nm, with the center located at approximately 846 nm. It demonstrates a full width at half maximum (FWHM) of 190 nm and a quantum yield of 66.9 % when excited by the blue light at 442 nm. When subjected to 373 K, the luminescence intensity of the phosphor remains above 80 % of the value at room temperature . The application in night vision and biological imaging have been realized by the prepared SrGe 3.99 O 9 : 1%Cr 3+ phosphor combined with a commercial 440 nm blue chip.
研究领域:
材料科学
·
光电子学
·
光子学
·
发光材料
·
固态照明
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高影响因子
Small
·
2020
·Vol. 16
·期 24
·2001417
·
IF 11.459
Bin Wang,Yuting Zou,Huanyu Lu,Wenchi Kong,Subhash C. Singh,Chen Zhao,Chaonan Yao,Jun Xing,Xin Zheng,Zhi Yu,Cunzhu Tong,Wei Xin,Weili Yu,Bo Zhao,Chunlei Guo
Triple-cation mixed metal halide perovskites are important optoelectronic materials due to their high photon to electron conversion efficiency, low exciton binding energy, and good thermal stability. However, the perovskites have low photon to electron conversion efficiency in near-infrared (NIR) due to their weak intrinsic absorption at longer wavelength, especially near the band edge and over the bandgap wavelength. A plasmonic functionalized perovskite photodetector (PD) is designed and fabricated in this study, in which the perovskite ((Cs 0.06 FA 0.79 MA 0.15 )Pb(I 0.85 Br 0.15 ) 3 ) active materials are spin-coated on the surface of Au bowtie nanoantenna (BNA) arrays substrate. Under 785 nm laser illumination, near the bandedge of perovskite, the fabricated BNA-based plasmonic PD exhibits ≈2962% enhancement in the photoresponse over the Si/SiO 2 -based normal PD. Moreover, the detectivity of the plasmonic PD has a value of 1.5 × 10 12 with external quantum efficiency as high as 188.8%, more than 30 times over the normal PD. The strong boosting in the plasmonic PD performance is attributed to the enhanced electric field around BNA arrays through the coupling of localized surface plasmon resonance. The demonstrated BNA-perovskite design can also be used to enhance performance of other optoelectronic devices, and the concept can be extended to other spectral regions with different active materials.
研究领域:
材料科学
·
光学工程
·
纳米技术
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高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Bin Shang,Yuan Zhan,Min Chen,Limin Wu
Although quite some self-healing coatings have been reported to date, underwater healable coatings were involved very limited. Here, we report a novel underwater healable superoleophobic coating through depositing functional SiO 2 @ [email protected] particles on the TPA/EVA-70% film. The obtained coating not only possess excellent underwater superoleophobic and antifouling properties, but also quick healable performance by remote NIR irradiation. Thus, it may provide stable and long-lasting underwater antifouling properties against marine growth and oil contamination.
研究领域:
材料科学
·
表面化学
·
海洋技术
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高影响因子
Journal of Materials Chemistry B
·
2020
·Vol. 8
·期 30
·6429-6437
·
IF 5.344
Ting Zhang,Zhiyu Liu,Hüsnü Aslan,Chunhua Zhang,Miao Yu
Locally administrable drugs with controllable release on external cues hold great promise for antitumor therapy. Here, we report an injectable, supramolecular hydrogel (SHG), where the drug release can be controllably driven by near infrared (NIR) irradiation. The SHGs are formed by electrostatic interactions with LAPONITE® (XLG), in which upconverting nanoparticles (UCNPs) modified with α-cyclodextrin (α-CD) are used as the core, and azobenzene quaternary ammonium salts (E-azo) are further assembled through host–guest interactions. The hydrogel demonstrates reversible phase transition between gel and sol states and photothermal conversion capability. In detailed in vitro and vivo trials, drug-loaded SHGs successfully suppressed invasion by cancer cells. Phase transitions that are regulated by NIR light and promote drug release using photothermal effects, highlighting the considerable potential of supramolecular hydrogels in anticancer therapies, especially for treatments requiring long-term, on-demand drug supply in clinics.
研究领域:
药学
·
材料科学
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生物医学工程
·
癌症治疗
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 31
·期 29
·2100218
·
IF 18.808
Yun Sun,Jingling Liu,Hongyu Wang,Shanshan Li,Xueting Pan,Bolong Xu,Hailong Yang,Qingyuan Wu,Wenxuan Li,Xin Su,Zhijun Huang,Xindong Guo,Huiyu Liu
Microneedles (MNs) have attracted widespread scientific and industrial interest in the past decade as an efficient, painless, low-cost, and relatively safe transdermal drug delivery device. However, their drawbacks such as insufficient dose accuracy and limited penetration depth may limit the clinical applications. Here, a light-controlled liquid band-aid based on MNs is developed for antibacterial applications. Metal–organic framework-derived peroxidase-like nanozyme loaded in MNs can not only convert light energy into heat to enhance drug permeation but also decompose hydrogen peroxide into hydroxyl radicals for antibacteria. The heat generated by the nanozyme can facilitate MNs to melt and form a liquid band-aid, which is beneficial to insulate the wound from the surrounding bacterial environment. These studies in a Staphylococcus aureus -infected mice model also prove that this laser-triggered liquid band-aid can efficiently reduce skin inflammation and promote wound healing. Together, these results demonstrate that the rational design of MNs can enhance antibacterial and wound healing efficiency.
研究领域:
生物医学工程
·
药学
·
伤口护理
·
纳米技术
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Xingxing Chen,Ruyue Wang,Chenhui Cui,Le An,Qiang Zhang,Yilong Cheng,Yanfeng Zhang
Fabrication of covalent adaptable networks with the combination of intrinsic photothermal responsiveness, NIR-triggered welding, multiple-shape memory, and selective shape memory recovery remains a challenge. Herein, we developed a series of poly(urea-oxime urethane) thermosets (PUOUs) based on 1,4-benzoquinone dioxime, Jeffamine D230, and hexamethylene diisocyanate trimer using an organic bismuth compound (U600) as the catalyst. The inherently strong photothermal effect of the PUOUs could trigger and manipulate the dynamic exchange of oxime-carbamate bonds to undergo rapid welding by near-infrared laser (NIR, λ = 808 nm) irradiation. The lap shear strength of the two PUOUs with an overlapped area of 4 cm × 4 cm reached 1.2 MPa after irradiation by a NIR laser for 150 s with an irradiation intensity of 2.7 W/cm 2 . Due to the two independent glass transition temperatures of the PUOUs, triple shape memory property was detected and selective shape memory recovery could achieve in the area subjected to NIR irradiation. Hence, the PUOUs show vast potential for the construction of weldable thermosets and may find applications in intelligent shape-memory devices.
研究领域:
材料科学
·
高分子化学
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高影响因子
Physica Status Solidi-Rapid Research Letters
·
2020
·Vol. 14
·期 11
·2000384
·
IF 2.291
Xing Xu,Chao Fan,Yanguo Wang,Zhuodong Qi,Beibei Dai,Haotian Jiang,Shaowei Wang,Qinglin Zhang
The direct growth of semiconductor nanowire (NW) arrays horizontally aligned on a substrate is critically important for the applications of NWs in electronic or optoelectronic devices at the circuit level. The strict requirement of lattice matching between a substrate and a material in the covalent epitaxy of crystals makes the wire arrays be grown on the substrates only with similar lattice parameters. Herein, a van der Waals epitaxy route is developed to realize the in-plane growth of large-scale Bi 2 S 3 NW arrays on mica with a large lattice mismatch. The orthorhombic Bi 2 S 3 NWs grow epitaxially with the axial direction of ⟨ 001 ⟩ Bi 2 S 3 along the six symmetric directions of the mica. Transmission electron microscope measurements show that the epitaxial relationships are [ 001 ] Bi 2 S 3 | | [ 100 ] mica and [ 3 2 ¯ 0 ] Bi 2 S 3 | | [ 010 ] mica along the length and width directions of the wires, respectively. More importantly, photodetectors based on Bi 2 S 3 NWs show a wide photoresponse spectrum range from 500 to 980 nm. A high responsivity (5233 A W −1 ) and a specific detectivity (1.8 × 10 12 Jones) are achieved under 830 nm light irradiation with ultralow intensity (64 nW cm −2 ). In addition, the photodetectors exhibit high stability with at least 48 day storage in ambient atmosphere or with 1000 times bending.
研究领域:
材料科学
·
电子工程
·
光学工程
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高影响因子
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
·
2020
·
IF 2.734
Xiaowei Wang,Yufen Li,Ji Li,Yaxuan Gu,Lihong Sang,Dongkai Wang
The combination of multiple therapies could significantly improve the efficiency of treatment for malignant tumors, which has become the trend of cancer research and treatment. Astragaloside IV (AS-IV) is able to enhance the sensitivity of anti-tumor drugs and reduces the adverse reactions, but AS-IV alone is not much powerful lethality to cancer cells. AS-IV and photosensitizer ICG are combined, which contributes to elevate the anti-tumor effect. In this study, we constructed the liposome co-loading with AS-IV and near infrared (NIR) dye ICG for chemo-photothermal therapy of breast cancer. In addition, the anticancer properties of the liposome have been studied in vitro and in vivo . AS-IV/ICG-LPs showed the uniform structure, preferable photothermal response, excellent physiological stability, and photo-responsive drug release behavior. Furthermore, in comparison with individual chemotherapy or PTT, the combinational chemo-PTT therapy of AS-IV/ICG-LPs with NIR laser irradiation synergistically induced apoptosis and death of cancer cells in vitro , and demonstrated synergistic chemo-PTT efficiency in vivo as evidenced by highly efficient tumor tissue ablation. Moreover, the liposome materials of FDA-approved agents provide a safe strategy in the rational design of synergistic combination therapy.
研究领域:
癌症研究
·
治疗学
·
药学
·
生物医学工程
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高影响因子
Nanoscale
·
2018
·Vol. 10
·期 39
·18520-18530
·
IF 7.233
Xiaomei Dai,Yu Zhao,Yunjian Yu,Xuelei Chen,Xiaosong Wei,Xinge Zhang,Chaoxing Li
The chronic infection of humans by antibiotic-resistant bacteria and their related biofilm have, so far, not been properly addressed. In the present work, we developed a novel antibacterial nanoplatform showing the most efficient antibiotic-resistant bacteria inhibition and biofilm eradication. This particular formulation contains tobramycin-conjugated graphene oxide, for efficiently capturing bacteria through electrostatic interactions and eliminating bacteria as a “nano-knife”, and copper sulphide nanoparticles for enhancing the photothermal and photodynamic properties. This novel formulation can selectively eliminate bacteria over NIH 3T3 cells, and the biofilm eradication capacity was up to 70%. Importantly, the nanoplatforms can inhibit bacterial growth and promote the repair of antibiotic-resistant bacteria-infected wounds on rats without non-specific damage to normal tissue. This work provides an effective, simple, and rapid method for the design and fabrication of near-infrared light-induced nanoplatforms that offer possibilities to treat biofilm-related infections.
研究领域:
医学
·
材料科学
·
感染病学
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PubMed
高影响因子
Nano Research
·
2018
·Vol. 11
·期 10
·5657-5669
·
IF 7.994
Chen Qian,Chen Jiawen,Yang Zhijuan,Zhang Lin,Dong Ziliang,Liu Zhuang
The use of near-infrared (NIR) light for photodynamic therapy (PDT) is a promising strategy to circumvent the limitations of current PDT, in which visible light with limited tissue penetration depth is usually used. In the present study, alkyl thiolated gold nanoclusters (AuNCs) were co-modified with human serum albumin (HSA) and catalase (CAT), and then employed as a multifunctional, optical, theranostic nano-agent. In the AuNC@HSA/CAT system, the AuNCs were able to produce singlet oxygen under excitation by a 1,064-nm laser, which locates in the second NIR window (NIR-II), and featured much lower tissue absorption and scattering, enabling NIR-II-triggered PDT. The HSA coating greatly improved the physiological stability of the nanoparticles, which showed efficient tumor retention after intravenous injection, as revealed by detecting the AuNC fluorescence. Moreover, the presence of CAT in the nanoparticles triggered decomposition of tumor endogenous H 2 O 2 to generate oxygen, thereby enhancing the efficacy of PDT by relieving tumor hypoxia. Compared with conventional PDT using visible light, NIR-II-triggered PDT exhibits remarkably increased tissue penetration. Thus, we developed a new type of photosensitizing nano-agent that simultaneously enables in vivo fluorescence imaging, tumor hypoxia relief, and NIR-II light-induced in vivo PDT in the treatment of cancer.
研究领域:
生物医学工程
·
肿瘤学
·
纳米医学
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Fan Hao,Liangyu Wang,Binling Chen,Lin Qiu,Jun Nie,Guiping Ma
Smart response hydrogel has a broad application prospect in human health real-time monitoring due to its responses to a variety of stimuli. In this study, we developed a novel smart hydrogel dressing based on conductive MXene nanosheets and a temperature-sensitive PNIPAm polymer. γ-Methacryloxypropyltrimethoxysilane (KH570) was selected to functionalize the surface of MXene further to improve the interface compatibility between MXene and PNIPAm. Our prepared K-M/PNIPAm hydrogel was found to have a strain-sensitive property, as well as a respond to NIR phase change and volume change. When applied as a strain flexible sensor, this K-M/PNIPAm hydrogel exhibited a high strain sensitivity with a gauge factor (GF) of 4.491, a broad working strain range of ≈250%, a fast response of ∼160 ms, and good cycle stability (i.e., 3000 s at 20% strain). Besides, this K-M/PNIPAm hydrogel can be used as an efficient NIR light-controlled drug release carrier to achieve on-demand drug release. This work paved the way for the application of smart response hydrogel in human health real-time monitoring and NIR-controlled drug release functions.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
·
健康监测
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高影响因子
危险品化学品经营许可证（带存储）