CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Hengjuan Deng,Xinxin Han,Xinyi Wang,Dongxi Liu,Sheng Cao,Bingsuo Zou
Multifunctional luminescent materials emiting dual white and near-infrared (NIR) radiation have broad applications in various fields, including illumination, food detection and bio-imaging. Herein, an ultra-wide spectrum ranging from 330 to 1000 nm is achieved simply by co-doping Bi 3+ and Cr 3+ into the double perovskite K 2 LiGaF 6 , enabling simultaneous emission of white and NIR light. The emission bands peaking at 475 and 750 nm correspond to the radiative transitions of Bi 3+ and Cr 3+ , respectively. Systematically studies reveal that the NIR emission of Cr 3+ originates from efficient energy transfer from Bi 3+ , with energy transfer efficiency exceeding 80 %. The energy transfer mechanism is thoroughly explained. Moreover, the red partial emission of Cr 3+ in turn compensates the missing red component in the bluish emission of Bi 3+ , contributing to the final white emission. Notably, Bi 3+ ions occupy double lattice sites of Ga 3+ and Li + , which exhibit distinct luminescence properties. The luminescence behaviors of double Bi 3+ and Cr 3+ centers at various temperatures are systematically analyzed. Finally, the combination of the as-prepared dual-emissive K 2 LiGaF 6 :Bi 3+ ,Cr 3+ phosphor and a UV chip demonstrates potential applications in illumination, food detection and bio-imaging. This work provides new perspectives for the design of multifunctional luminescent materials and their deployment in diverse application scenarios.
研究领域:
材料科学
·
生物成像
·
食品检测
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2018
·
IF 2.831
Jing-Wen Hao,Nai-Dong Chen,Cun-Wu Chen,Fu-Cheng Zhu,De-Liang Qiao,Yong-Jun Zang,Jun Dai,Xiang-Wen Song,Han Chen
A rapid, green, low cost and nondestructive attenuated total reflection near infrared (ATR NIR) method was developed to quantify the total polysaccharide and the main monosaccharides mannose and glucose in Dendrobium huoshanense. Total 100 D. huoshanense samples from different places were analyzed using ATR NIR method. Potential outlying samples were initially removed from the collected NIR data using the PCA-Mahalanobis distance method. Spectral data preprocessing was studied in the construction of a partial least squares (PLS) model and six different signal pretreatment methods, including multiplicative scattering correction (MSC), standard normal transformation (SNV), first and second derivatives, the combination of MSC with the first derivative, and the combination of SNV with the first derivative, were compared. The results showed that the best signal pretreatment method was the spectral data pretreated by SNV combined with the first derivative due to it showed the lowest root-mean-square error of cross-validation (RMSECV), highest R 2 for both the polysaccharide and its main monosaccharides . In order to improve the performance of the model, the pretreated full spectrum was calculated by different wavelength selection method. The results showed that the optional wavelength selection model was the one simultaneously selecting the NIR wavelength ranges 7500–5750 cm −1 , 5250–4700 cm −1 , 4450–4300 cm −1 and 4200–4100 cm −1 because of the lowest RMSECV and the highest R 2 among the ten wavelength selection models. The external validation and the complete external validation confirmed the robustness and reliability of the developed NIR model. The contents of the total polysaccharide and the main monosaccharides are the essential quality assessment criterion for plant medicines while their traditional quantification methods involved sample destruction, tedious sample processing and non-environmentally friendly pretreatment, therefore, our study might provide an efficient technique tool for the rapid, green and nondestructive quantification of the total polysaccharide and the main monosaccharides for D. huoshanense and other rich-in-polysaccharide plant medicines.
研究领域:
植物学
·
分析化学
·
药学
✓ 已验证
DOI
高影响因子
TALANTA
·
2021
·
IF 6.057
Linna Huang,Feng Chen,Xia Zong,Qiujun Lu,Cuiyan Wu,Ziqi Ni,Meiling Liu,Youyu Zhang
Due to similar charges, atomic radii, and chemical properties of most metal ions , the selective sensing of these metal ions and imaging in vivo is still a challenge. A DNAzyme assemblied and near-infrared (NIR) light excited nanosensor was developed to detect and image Pb 2+ . In this nanosensor, NaYF 4 :Yb, Er upconversion nanoparticles (UCNPs) introduced as NIR-to-Vis transducer were the donor of luminescence resonance energy transfer (LRET), and DNAzyme-functionalized black hole quencher 1 (BHQ1) acted as energy transfer acceptor. This proposed nanosensor was applied to detecting Pb 2+ in solution with high sensitivity and selectivity . Furthermore, we have successfully demonstrated the imaging ability of this nanosensor towords Pb 2+ in living cells and early-stage zebrafish with negligible autofluorescence and good photostability. The UCNP-DNAzyme nanosensor would enrich the method of imaging Pb 2+ in vivo, and might serve as a potential tool for understanding the metabolic pathways of Pb 2+ and the mechanism of lead poisoning in biological system.
研究领域:
生物化学
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分析化学
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分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Jiulong Zhao,Chunhua Zhou,Chenyao Wu,Huan Wu,Chunping Zhu,Changqing Ye,Shige Wang,Duowu Zou
Alginate-Ca2+ hydrogel has been used to immobilize photothermal materials as well as chemotherapy drugs at lesion sites to prevent their entry into the bloodstream. However, the alginate-Ca2+ gelation mechanism may result in hardening of the blood vessels because of Ca2+ migration to the lesion site. In this study, a unique and facile one-pot formation of chemotherapeutic (doxorubicin, DOX) and polypyrrole-containing alginate hydrogel was designed by introducing Fe3+, which can synchronously induce the polymerization of pyrrole and gelatinization of alginate, into the DOX/pyrrole/alginate solution. The formed composite hydrogel was endowed with superior photothermal conversion properties in both the NIR-I (650–950 nm) and NIR-II (1000–1700 nm) biowindows and light-to-heat conversion efficiency higher than 50%, which enabled effective tumor hyperthermia treatment. Besides, near-infrared (NIR) irradiation could be used as a remote controller to trigger the DOX-release because of the heat generation, thus achieving continuous and on-demand tumor chemotherapy. The composite polymer hydrogels exhibited favorable hemo-, cyto-, and histocompatibility, as well as simple and cost-effective preparation and good clinical prospects.
研究领域:
生物医学工程
·
肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Materials Interfaces
·
2016
·Vol. 3
·期 22
·1600767
·
IF 3.365
Wenxi Lei,Kefeng Ren,Tingting Chen,Xiachao Chen,Bochao Li,Hao Chang,Jian Ji
Graphical Very thin polydopamine (PDA) coating with 20–30 nanometer thickness is prepared through self-polymerization of dopamine. This PDA nanocoating can generate high local heat upon near-infrared (NIR) irradiation in minutes, leading to the efficient killing of both Gram negative and positive bacteria, and fungus as well.
研究领域:
生物医学工程
·
抗菌材料研究
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Jian Wei,Li Yuan,Guozheng Liang,Aijuan Gu
Endowing near-infrared light (NIR) induced self-healing coatings with high transparency is an interesting issue with big challenge. Herein, starting from designing an acrylate resin system and surface activated W 18 O 49 nanowires (mW 18 O 49 ), a new kind of NIR induced self-healing composite coating was developed, which is coded as ACWx (x is the loading of mW 18 O 49 in each coating). The effect of mW 18 O 49 loading on the integrated performance of ACWx coatings was studied. As the content of mW 18 O 49 increases, the transparency of ACWx coatings decreases, but the transmittance at 550 nm of all coatings is still >83.9 %. In addition, ACW0.5 and ACW0.65 composite coatings exhibit outstanding NIR induced self-healing ability after irradiation under NIR (power density of 2.5 W/cm 2 ) for 3 min. Meanwhile, the integrated properties including adhesion, flexibility, hardness, gloss, acid and alkali resistance of ACWx composite coatings meet the application requirements of automotive varnishes.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2022
·Vol. 128
·期 8
·1-11
·
IF 2.983
Chen Zhangxu,Zhu Danchen,Zhang Lidan
To overcome the intrinsic disadvantages of pristine g-C 3 N 4 and make it reusable, improve the activity of g-C 3 N 4 by making use of the near-infrared region, the magnetic Fe 3 O 4 /β-NaYF 4 /g-C 3 N 4 (FO/UC/CN) heterogeneous materials with high and stable NIR enhanced photocatalytic activity were prepared via a new facile one-step solvothermal synthesis method. It can be revealed that FO/UC/CN can activate UV–visible light under excitation of 980 nm. Compared with pure Fe 3 O 4 , g-C 3 N 4 and Fe 3 O 4 /g-C 3 N 4 , the obtained FO/UC/CN15 heterojunction exhibits good photodegradation rates of 65.56, 21.35, 59.22 and 20.49% for MB, MO, RhB and phenol, respectively. In addition, after four cycles of the photocatalytic degradation test, the photodegradation rates remain 62.14, 20.54, 57.64 and 19.36%, respectively. The results illustrate magnetic FO/UC/CN heterojunction exhibits highly NIR-enhanced photocatalytic activity and excellent stability. This study indicates a promising system to synthesize g-C 3 N 4 -based magnetic photocatalysis for effectively utilizing the NIR and treating industrial wastewater, which can be expected to alleviate the energy crisis and enhance the application of solar energy for dealing with environmental remediation in the future.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2021
·
IF 6.953
Yangjin Dong,Shanshan Li,Xiaoyun Li,Xiaoying Wang
Smart hydrogels responsive to minimally invasive near-infrared (NIR) light have great potential in localized drug delivery for cancer treatment, but they still show some limitations such as low photothermal conversion, poor photothermal stability, and improper temperature range in biomedical applications. In this paper, the two-dimensional MXene nanosheets with high photothermal conversion efficiency as well as photothermal stability was firstly prepared, then the MXene nanosheets and the therapeutic drug were embedded in the low-melting-point agarose hydrogel network to fabricate the drug-loaded MXene/agarose hydrogel (MXene@Hydrogel). With the addition of low concentration of MXene (20 ppm), the MXene@Hydrogel could quickly rise to 60 °C under NIR irradiation and melt to release the encapsulated drugs. Importantly, the drug on/off release and the kinetics could be easily controlled with varied agarose concentration, MXene concentration, light intensity, and exposure time. In addition, the drug doxorubicin retained the anticancer activity after released from the MXene@Hydrogel network under NIR irradiation. With the excellent biocompatibility, the newly fabricated NIR-responsive MXene@Hydrogel offers a novel way for the development of smart hydrogel-based drug delivery system for localized cancer treatment.
研究领域:
生物医学工程
·
材料科学
·
肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Hao Jiang,Hao Chen,Yutuo Fu,Chongshen Guo
To make the most of solar energy, it is of great significance to utilize the near infrared (NIR) light outside the visible and UV region for the related applications. In this work, a multifunctional SnFe 2 O 4 had been designed for this purpose. The SnFe 2 O 4 was a full-solar-range responsive photocatalyst, which could realize the photocatalytic degradation of methylene blue under both visible and near infrared irradiation. Meanwhile, NIR triggered photothermal effect of SnFe 2 O 4 favored sterilization and improved comprehensive purification of sewage. On the basis of unique piezoelectric property, SnFe 2 O 4 also presented the excellent piezocatalytic activity and further a synergistic effect of piezocatalysis enhanced NIR-driven photocatalysis was realized. Finally, the possible mechanism was investigated by radical scavenging tests, ESR signals and density functional theory calculation. The simulated electronic structure and molecular activation well explained the generation of reactive oxygen species and it was also well supported by experimental results. This work provided a theoretical basis for extending use of solar spectrum for the photocatalysis and constructing the multifunctional photocatalysis and piezocatalysis.
研究领域:
材料科学
·
环境科学
·
光化学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Jie Zhang,Jia Liu,Shu He,Zhiyue Cui,Wei Shao
In recent years, hydrogel actuators have been widely used in various types of intelligent devices due to their unique stimulus responsiveness (such as temperature, near-infrared (NIR) light, and pH). Herein, a thermal/NIR/magnetically actuated hydrogel based on asymmetric structure was constructed. Iron oxide nanoparticles (Fe 3 O 4 NPs) were loaded onto graphene oxide (GO) to firstly prepare magnetic GO (mGO) with high photothermal conversion ability and magnetic property . Then they were introduced into the PNIPAM hydrogel with the assistance of magnetic field in the polymerization process to obtain the gradient distribution of mGO in the hydrogel. The prepared mGO/PNIPAM hydrogel exhibited fast bending behaviors in different stimulus environments as well as good reversible cycling performance. Thus, the mGO/PNIPAM hydrogel actuator was successfully used as intelligent devices such as NIR switch for controlling circuit, temperature and NIR light-actuated petals, magnetic-actuated starfish, and triple-actuated bionic octopus. This work provides a new strategy for the construction and preparation of multiple stimuli-responsiveness hydrogel actuators.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Yingcui Bu,Yingyu Zhu,Yuxin Yang,Ting Wang,Xiaojiao Zhu,Xingxing Chen,Qiong Zhang,Mingdi Yang,Hongping Zhou
At present, some progress has been made in developing NIR light-responsive free radical generators. However, the efficacy of theranostics continues to be hindered by tumor-associated inflammatory reactions. Hence, fulfilling the in situ release of free radicals upon NIR light excitation specifically activated by the inflammation microenvironment would be an ideal strategy for efficient inflammation eradication and tumor suppression but remains a challenge. Herein, a SO2 (overexpressed reactive sulfur species in inflamed site)-stimulated phototheranostic agent (CVS) is successfully developed. Through a specific response to both endogenous and exogenous SO2 with a low LOD (31.7 nM), CVS demonstrates the “switch on” two-photon activity as well as efficient OH· generation. Remarkably, in CVS-treated H22-tumor-bearing mice, the NIR light-activated accurate inflammation eradication and tumor suppression are accomplished. This reactive phototheranostic platform not only facilitates the quantification of SO2 during inflammation but also renders it a potent NIR antihypoxic tumor agent.
研究领域:
生物医学工程
·
药理学
·
肿瘤学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Science
·
2024
·
IF 14.3
Zhengwei Liu,Hui Zhang,Jingjing Gan,Yuanjin Zhao,Yongxiang Wang
Hydrogel-derived implants have proven value in bone tissue regeneration, and current efforts have concentrated on devising strategies for producing functional implants with desired structures and functions to improve therapeutic outcomes. Herein, a novel black phosphorus (BP) tagged responsive strontium (Sr) hydrogel particles are presented for bone defect repair. By applying microfluidic technology, Sr and carboxymethyl chitosan, and BP are integrated into poly(N-isopropyl acrylamide) (pNIPAM) hydrogel matrix to generate such microparticles called pNBCSMs. Upon exposure to near-infrared irradiation, the pNBCSMs experience volume shrinkage and provoke the extrusion of the incorporated Sr, ascribed to the photothermal conversion ability of BP and the thermosensitivity of pNIPAM. In vitro and in vivo experimental results reveal that pNBCSMs subjected to near-infrared light display superior anti-inflammatory, anti-apoptotic, bacterial inhibitory, as well as osteogenesis-promoting effects, thereby effectively improving defective cranial bone repair. These features suggest that the proposed pNBCSMs can be promising candidates for bone repair.
研究领域:
生物材料学
·
组织工程学
·
医学
✓ 已验证
DOI
PubMed
高影响因子
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