Inorganic Chemistry Frontiers
·
2026
·
IF 6.2
Jia-Wei Liu,Dan Li,Peng-Xu Lu,Tao-Xiao Wen,Yan-Ru Chen,Jian-Hua Jia,Ming-Liang Tong
Luminescent metal nanoclusters featuring near-infrared (NIR) emission hold promise for diverse applications. Although ligand engineering can modulate their NIR optical properties, separating the effects of single-ligand in dual-ligand systems remains challenging. In this study, we employed a controlled variable approach to prepare three structurally comparable silver-rich clusters-Ag11Cu3, Cu@Ag14-xCux, and Ag18. By maintaining a constant thiolate ligand and solely varying the phosphines, we elucidated the synergistic regulatory impacts of the ligands on the core configuration and excited-state dynamics. Structural and optical analyses reveal that the monodentate phosphine (TPP) stabilizes an Ag6@Ag5Cu3 core of the cluster Ag11Cu3, leading to NIR-I emission (720 nm) originating from mixed triplet state metal-centered and charge transfer transitions. In contrast, the bidentate phosphine (trans-dppe) facilitates the formation of a nested Ag6@Ag8@Ag4 core of the cluster Ag18, triggering NIR-II emission (1424 nm) associated with highly delocalized core-based excited states. Moreover, the spatial influence of the chiral bidentate phosphine ((S,S)-BDPP) can induce core-structural distortion, which promotes nonradiative decay and results in luminescence quenching of the cluster Cu@Ag14-xCux. This work clarifies the relation between the structure and luminescence properties of ligand-mediated metal clusters, offering valuable insights for the design of tailored NIR optical materials.
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高影响因子
Advanced Materials Technologies
·
2022
·Vol. 8
·期 4
·2201181
·
IF 8.856
Bo-Mei Liu,Xiao-Xuan Guo,Lin Huang,Rong-Fu Zhou,Rui Zou,Chong-Geng Ma,Jing Wang
Near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) have sparked tremendous interest in NIR spectroscopy. However, conventional NIR pc-LEDs with a narrow full-width at half-maximum (FWHM) and single-emission block the detection scope and detection accuracy for NIR spectroscopy analysis. Herein, a multicenter strategy is developed for the preparation of blue-light-excitable Mg 2 SnO 4 :Cr 3+ ,Ni 2+ phosphors with NIR dual-emission (λ em = 830/1480 nm, total FWHM = 532 nm). Benefiting from the unique NIR dual-emission, a ratiometric measurement system with a self-calibration function is established for highly precise and nondestructive detection. For the first time, a good linear relationship with a detection limit of 0.22 wt.% is achieved for quantitative, non-invasive detection of water/ethanol mixtures in the field of NIR spectroscopy applications. Additionally, a super-broadband pc-LED with a NIR output power of 16.1mW@300 mA is fabricated, demonstrating its applications in high-penetration imaging and anticounterfeiting. These results provide an approach to achieving NIR dual-emission phosphor, thereby opening a new avenue for exploring ratiometric NIR spectroscopy techniques.
研究领域:
材料科学
·
光学工程
·
分析化学
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高影响因子
Journal of Materials Chemistry C
·
2017
·Vol. 5
·期 37
·9770-9777
·
IF 5.256
Shaohua Fan,Guojun Gao,Dmitry Busko,Zhiquan Lin,Shikai Wang,Xue Wang,Shiyu Sun,Andrey Turshatov,Bryce S. Richards,Hongtao Sun,Lili Hu
Monodisperse β-NaYF4:Yb3+,Tm3+ (NYF) hexagonal microplates with efficient near-infrared (NIR)-to-NIR up-conversion (UC) developed via a new ion-exchange modified hydrothermal method are reported. Ion exchange modification (IEM) not only significantly increases the UC intensity by up to 1000 times and prolongs the emission lifetimes of Tm3+ and Yb3+, but also enables the monodisperse morphology and size of hexagonal microplates to be maintained. A high UC quantum efficiency (QE) of 3.1% is obtained for IEM β-NaYF4:20%Yb3+,1%Tm3+ when excited with 980 nm light at a power density of 10 W cm−2. The UC emission properties can be finely tailored by changing the NaF/NYF molar ratio (NYF represents lanthanide doped β-NaYF4) and the doping concentration of Tm3+. The two photon NIR UC emission centered at ∼803 nm (arising from Tm3+: 3H4 → 3H6) dominates the UC emission spectrum and high concentrations of Tm3+ favor NIR UC further. A proof-of-concept optical image of printed patterns is demonstrated to verify their applications in security. These results suggest the promising applications of the newly developed monodisperse β-NaYF4:Yb3+,Tm3+ hexagonal microplates in security, luminescent labels, solid-state lasers, amplifiers, and biomedicine.
研究领域:
材料科学
·
光子学
·
纳米技术
·
光学材料
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发光学
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稀土掺杂
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生物医学工程
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高影响因子
Laser & Photonics Reviews
·
2023
·Vol. 18
·期 1
·2300784
·
IF 11
Taoze Wang,Yuzhen Wang,Weibin Chen,Zhiguo Xia
Near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) lighting sources are applied in non-destructive examination and illumination supplements for night monitoring. As a critical component of NIR pc-LED, NIR phosphors are required to possess a high external quantum efficiency (EQE), super thermal stability, and broadband emission to meet applications. Here, Na 2 SrGe 6 O 14 :Cr 3+ (NSGO:Cr) glass ceramics (GC) bulk via highly crystallization from glass precursor is fabricated and demonstrates an ultrabroad emission band centered at 815 nm with a full width at half-maximum (FWHM) of 214 nm and a high EQE of 49.2%. Moreover, Yb 3+ co-doping significantly enhances Cr 3+ → Yb 3+ energy transfer (ET) due to the stronger Yb 3+ : 2 F 7/2 - 2 F 5/2 absorption. Benefiting from the ET process, the Cr/Yb co-doped GC exhibits NIR-I/II emission with improved thermal stability from 30.1% to 65.0%. Furthermore, an encapsulant-free NIR GC-converted LED (GCc-LED) is prepared and exhibits 52.2 mW NIR output power with a high photoelectric conversion efficiency (PCE) of 19.4%. Under a large current of 600 mA, the NIR device exhibits a watt-level output power of 922.4 mW with a PCE of 9.1%. Compared to conventional NIR powder phosphors, NSGO:Cr/Yb GC with high performance can open up an avenue for the fabrication of high power NIR lighting sources.
研究领域:
材料科学
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光学工程
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高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Ding Wen,Lile Dong,Kai Li,Yechao Du,Ruiping Deng,Jing Feng,Hongjie Zhang,Daguang Wang
Despite bismuth-based energy conversion nanomaterials having attracted extensive attention for nanomedicine, the nanomaterials suffer from major shortcomings including low tumor accumulation, long internal retention time, and undesirable photothermal conversion efficiency (PCE). To combat these challenges, bovine serum albumin and folic acid co-modified Bi2Se3 nanomedicine with rich selenium vacancies (abbreviated as VSe-BS) was fabricated for the second near-infrared (NIR-II) light-triggered photonic hyperthermia. More importantly, selenium vacancies on the crystal planes (0 1 5) and (0 1 11) of VSe-BS with similar formation energies could be distinctively observed via aberration-corrected scanning transmission electron microscopy images. The defect engineering endows VSe-BS with enhanced conductivity, making VSe-BS possess outstanding PCE (54.1%) in the NIR-II biowindow and desirable photoacoustic imaging performance. Tumor ablation studies indicate that VSe-BS possesses satisfactory therapeutic outcomes triggered by NIR-II light. These findings give rise to inspiration for further broadening the biological applications of defect engineering bismuth-based nanomaterials.
研究领域:
纳米医学
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生物材料学
·
肿瘤治疗
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高影响因子
ADVANCED MATERIALS
·
2024
·Vol. 36
·期 33
·2402482
·
IF 27.4
Wanyuan Li,Baiyao Liu,Leyan Ou,Gangzhou Li,Dapeng Lei,Ze Xiong,Huihua Xu,Jizhuang Wang,Jinyao Tang,Dan Li
Emerging light-driven micro/nanorobots (LMNRs) showcase profound potential for sophisticated manipulation and various applications. However, the realization of a versatile and straightforward fabrication technique remains a challenging pursuit. This study introduces an innovative bulk heterojunction organic semiconductor solar cell (OSC)-based spin-coating approach, aiming to facilitate the arbitrary construction of LMNRs. Leveraging the distinctive properties of a near-infrared (NIR)-responsive organic semiconductor heterojunction solution, this technique enables uniform coating across various dimensional structures (0D, 1D, 2D, 3D) to be LMNRs, denoted as “motorization.” The film, with a slender profile measuring ≈140 nm in thickness, effectively preserves the original morphology of objects while imparting actuation capabilities exceeding hundreds of times their own weight. The propelled motion of these microrobots is realized through NIR-driven photoelectrochemical reaction-induced self-diffusiophoresis, showcasing a versatile array of controllable motion profiles. The strategic customization of arbitrary microrobot construction addresses specific applications, ranging from 0D microrobots inducing living crystal formation to intricate, multidimensional structures designed for tasks such as microplastic extraction, cargo delivery, and phototactic precise maneuvers. This study advances user-friendly and versatile LMNR technologies, unlocking new possibilities for various applications, signaling a transformative era in multifunctional micro/nanorobot technologies.
研究领域:
材料科学
·
微纳米技术
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生物医学工程
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DOI
PubMed
高影响因子
POLYMER
·
2020
·
IF 4.231
Haohao Wu,Dekun Sheng,Xiangdong Liu,Yan Zhou,Li Dong,Fance Ji,Shaobin Xu,Yuming Yang
Polypyrrole nanoparticles (PPy) are widely used in cancer treatment because of its excellent photo-thermal effect. To our best knowledge, the application of such property in self-healing polymers have rarely been reported. Here, thermoplastic polyurethanes (TPU) were prepared by two-step method, and then TPU/PPy nanocomposites were prepared by solution blending. The stress and strain of TPU were increased from 8.20 MPa to 1540% to 13.50 MPa and 1650% with 0.25 wt% PPy respectively. Meanwhile, the thermal stability was also improved significantly. After the composite film was cut and spliced together, the fracture was irradiated with NIR, the mechanical strength of the composite material could be restored to over 80% in only 30 s. The strengthening effect of PPy in polyurethane and the rapid repair performance of composite materials can well solve the contradiction that self-repairing materials cannot improve the repair efficiency and mechanical properties simultaneously, and at the same time broaden the application area of PPy.
研究领域:
材料科学
·
生物医学工程
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DOI
高影响因子
SOLAR ENERGY
·
2023
·
IF 6.7
Wei Zhang,Tianhao Li,Erxiao Wu,Ke Chen,Shiyu Du,Wenlong Yang,Qing Huang,Xin Su,Wangqiao Chen,Ming Liu,Yujie Song
Urban heat island effects are mainly caused by near infrared region (NIR) thermal radiation (700–2500 nm) produced by sunlight. To reduce accumulation of heat, cooling paintings containing NIR reflective pigments is one possible solution. In this research, 4- tert -butyl phthalocyanines were synthesized through environmentally friendly solvent-free methods. The NIR reflective behaviors could be readily tuned through modification of phthalocyanines structures, and it was found out that the distribution state of the electron in d orbit plays a key role in determining the intensity of NIR reflectance. 4- tert- butyl Cu(II) phthalocyanine showed the highest total solar reflectance (73 %) among all synthesized phthalocyanines, and It exhibited good heat resistance, weathering stability. Eventually, the film prepared by mixing polydimethylsiloxane and 4- tert -butyl Cu(II) phthalocyanine (PDMS- Pc ) showed a temperature difference of 7.5 °C compared to pure polydimethylsiloxane film in the model house study, demonstrating potential applications as cooling coatings. This cooling coating material can reduce the energy consumption caused by cooling equipment such as air conditioners which will achieve energy conservation in the future.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
Science Advances
·
2022
·Vol. 8
·期 40
·
IF 14.957
Bin Zhao,Lingting Zeng,Danyang Chen,Songqing Xie,Zhaokui Jin,Guanglin Li,Wei Tang,Qianjun He
Synovial microenvironment (SME) plays a vital role in the formation of synovial pannus and the induction of cartilage destruction in arthritis. In this work, a concept of the photocatalytic regulation of SME is proposed for arthritis treatment, and monodispersive hydrogen–doped titanium dioxide nanorods with a rutile single-crystal structure are developed by a full-solution method to achieve near infrared–photocatalytic generation of hydrogen molecules and simultaneous depletion of overexpressed lactic acid (LA) for realizing SME regulation in a collagen-induced mouse model of rheumatoid arthritis. Mechanistically, locally generated hydrogen molecules scavenge overexpressed reactive oxygen species to mediate the anti-inflammatory polarization of macrophages, while the simultaneous photocatalytic depletion of overexpressed LA inhibits the inflammatory/invasive phenotypes of synoviocytes and macrophages and ameliorates the abnormal proliferation of synoviocytes, thereby remarkably preventing the synovial pannus formation and cartilage destruction. The proposed catalysis-mediated SME regulation strategy will open a window to realize facile and efficient arthritis treatment.
研究领域:
生物医学工程
·
材料科学
·
风湿病学
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DOI
PubMed
高影响因子
Theranostics
·
2025
·Vol. 15
·期 10
·4481
·
IF 13.3
Yupeng Sun,Rui Li,Yike Cai,Yan Liu,Peiyuan Wang,Ming Wu,Xiaolong Zhang,Naishun Liao,Cuilin Zhang,Aixian Zheng,Haipo Xu,Rui Zeng,Yongyi Zeng,Xiaolong Liu
Tumor-infiltrating CD8 + T cells and programmed death-1 (PD1) levels are critical indicators for tumor immunophenotyping and therapeutic decision-making. Noninvasive optical imaging in the second near infrared window (NIR-II) is particularly well-suited for investigating the biological processes within tumors in live mammals, thanks to its deep-tissue penetration and superior spatiotemporal resolution. However, in vivo NIR-II imaging has primarily been restricted to a single probe at a time. Methods: Herein, we developed a two-plex NIR-II molecular imaging method utilizing the non-overlapping fluorescence emission of indocyanine green (ICG) in the NIR-IIa window (1000-1200 nm) and PbS/CdS core-shell quantum dots (QDs) in the NIR-IIb window (1500-1700 nm). By integrating PD1 aptamer-labeled ICG (ICG-Apt-PD1, targeting PD1) and CD8 aptamer-labeled QDs (QDs@Apt-CD8, targeting CD8 + T cells), our two-plex NIR-II molecular imaging enabled simultaneous and noninvasive monitoring of the number of CD8 + T cells and PD1 levels in tumors. Results: QDs@Apt-CD8 demonstrated the excellent ability for in vivo imaging of tumor infiltrating CD8 + T cells, owing to its strong NIR-IIb luminescence and the high selectivity and specificity. This two-plex in vivo molecular imaging allowed for dynamic monitoring for PD1 levels and the number of CD8 + T cells in tumors. We observed the heterogeneous bio-distributions of PD1 and CD8 + T cells across different tumor types and revealed the tumor immunophenotypes. Moreover, our findings indicated that the low PD1 and high CD8 + T cells levels in tumors predicted a better anti-tumor effect. Conclusions: Such in vivo noninvasive NIR-II molecular imaging would complement ex vivo biopsy-based diagnostic techniques, and it could contribute to developing an in vivo tumor immune-scoring algorithm to offer a more precise prediction for immunotherapeutic response.
研究领域:
生物医学工程
·
肿瘤免疫学
·
分子影像学
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产品关联
DOI
PubMed
高影响因子
Biomaterials Science
·
2015
·Vol. 3
·期 7
·1147-1156
·
IF 3.831
Minghui Zan,Junjie Li,Mingming Huang,Shanqing Lin,Dan Luo,Shizhong Luo,Zhishen Ge
Near-infrared (NIR) light-triggered drug release systems are promising for drug delivery applications in view of the advantages of NIR light, which include high tissue penetration and low damage. In this report, we developed nanogels (NGs) by supramolecular self-assembly from adamantine (AD)-conjugated copolymer, poly[poly(ethylene glycol)monomethyl ether metharcylate]-co-poly(N-(2-hydroxypropyl)methacrylamide)-co-poly(N-adamantan-1-yl-2-methacrylamide) (PPEGMA-co-PHPMA-co-PADMA), and β-cyclodextrin (β-CD)-functionalized poly(amidoamine) (PAMAM) dendrimer based on the host–guest interaction of the AD and β-CD moieties, and they were used to encapsulate indocyanine green (ICG) and doxorubicin (DOX) for combined photothermal-chemotherapy. NGs simultaneously loading ICG and DOX (DINGs) showed significant photothermal effects and stimuli-triggered drug release under NIR laser irradiation by the photothermal-induced relaxation or dissociation of the NGs. In vitro cytotoxicity evaluation of DINGs under NIR irradiation demonstrated the synergistic effects of hyperthermia, photothermal-triggered drug release, and chemotherapy. In vivo investigation revealed their high accumulation in tumor tissue and significant tumor growth suppression under NIR irradiation. These NIR light-triggered drug release NGs represent efficient and promising anticancer drug vectors for the combined photothermal-chemotherapy of cancer to maximize therapeutic efficacy and minimize side effects.
研究领域:
生物医学工程
·
癌症研究
·
材料科学
·
药物递送系统
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DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2016
·
IF 3.014
Xia Hu,Xiao-Jie Zheng,Yan Li,Jing Zhang,De-Kun Ma
Various architectures of Cu 2 PO 4 OH including multibranches-like, rose-like, rod-like and brick-like were synthesized through a facile solvothermal route, employing different kinds of alcohols as solvents. It was found that the types of the alcohols, the ratios of alcohols to water, and the presence of PEG 2000 played key roles in the aspect of adjusting the growth of Cu 2 PO 4 OH architectures. All of the as-obtained products showed strong and wide absorption in the range of 600–1500 nm. Under the irradiation of a continuous 808 nm laser, the materials exhibited morphology-dependent photothermal performance. The present study not only develops a new strategy to synthesize Cu 2 PO 4 OH with various architectures but also provides a promising near-infrared (NIR) light-driven photothermal agent.
研究领域:
材料科学
·
化学
·
纳米技术
·
光热治疗
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）