Scientific Reports
·
2025
·Vol. 15
·期 1
·1-10
·
IF 3.9
Li Wenchen,Sha Yunfei,Xiong Junwei,Chen Yumei,Zhang Yaqiong,Zhang Jianhao,Xu Lan,Lu Weiying
A rapid and efficient detection method to detect the total starch in tobacco leaves using smartphone-based anthrone-sulfuric acid colorimetry is established under the framework of the low-cost, immediate, general-purpose, and high-throughput (LIGHt) smartphone-based colorimetry. The LIGHt smartphone colorimetry resulted average relative error of 5.74%, with a relative standard deviation (RSD) ranging from 2.58 to 4.31%, a detection limit of 1.53 µg/mL, and an average recovery rate of 95.72%. The results demonstrated that the LIGHt smartphone colorimetry perform comparably to the regular visible spectrophotometry in determining starch concentration, validating the feasibility of this novel colorimetric method, which requires no specific instruments. The LIGHt-based method indicated the feasibility and potential for application in the field of rapid quality detection of plant leaves and other food and medicinal-related quality control practices.
研究领域:
植物学
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食品科学
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医学检测
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DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Ruonan He,Junyi Yang,Shengjie Yuan,Ling Chen,Hongqiang Ren,Bing Wu
Real-time monitoring of estrogenic activity in the aquatic environment is a challenging task. Current biosensors face difficulties due to their limited response speed and environmental tolerance, especially for detecting wastewater, the major source of estrogenic compounds in aquatic environments. To address these difficulties, this study developed a single fluorescent protein (FP) -based whole-cell bacterial biosensor named ER-Light, which was achieved by inserting the sensing domain of the estrogen receptor (ER) into the FP Citrine and expressing it in the periplasm of Escherichia coli . As designed, ER-Light enables the detection of net estrogenic activity in mixtures, represented by estradiol equivalent concentration (EEQ). ER-Light detects EEQ in 40 s with a detection limit of 4.55 × 10 −7 μM and a maximum working range of 1.1 × 10 −4 μM, demonstrating sufficient response speed, sensitivity, and working range. In addition, the ER-Light can survive and tolerate wastewater effluent. Satisfactory recoveries (91.0 % to 102.1 %) eliminated concerns about the matrix effect of wastewater. EEQs (Not detected-2.9 ×10 −5 µM) measured by ER-Light from the effluent of 9 wastewater treatment plants validate its practicality in detecting wastewater. This is the first attempt to integrate ER into FP-based biosensors for environment monitoring. Our findings provide valuable design rules for real-time detection of bioactivity effects in the environment, contributing to the safeguarding of ecological and human health.
研究领域:
环境科学
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分子生物学
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生物技术
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产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-20
·
IF 16.6
Zhou Songlei,Huang Yukun,Chen Yu,Liu Yipu,Xie Laozhi,You Yang,Tong Shiqiang,Xu Jianpei,Jiang Gan,Song Qingxiang,Mei Ni,Ma Fenfen,Gao Xiaoling,Chen Hongzhuan,Chen Jun
The limited benefits of immunotherapy against glioblastoma (GBM) is closely related to the paucity of T cells in brain tumor bed. Both systemic and local immunosuppression contribute to the deficiency of tumor-infiltrating T cells. However, the current studies focus heavily on the local immunosuppressive tumor microenvironment but not on the co-existence of systemic immunosuppression. Here, we develop a nanostructure named Nano-reshaper to co-encapsulate lymphopenia alleviating agent cannabidiol and lymphocyte recruiting cytokine LIGHT. The results show that Nano-reshaper increases the number of systemic T cells and improves local T-cell recruitment condition, thus greatly increasing T-cell infiltration. When combined with immune checkpoint inhibitor, this therapeutic modality achieves 83.3% long-term survivors without recurrence in GBM models in male mice. Collectively, this work unveils that simultaneous reprogramming of systemic and local immune function is critical for T-cell based immunotherapy and provides a clinically translatable option for combating brain tumors.
研究领域:
肿瘤学
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免疫学
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纳米技术
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神经科学
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产品关联
DOI
PubMed
高影响因子
Advanced Materials Technologies
·
2022
·Vol. 8
·期 2
·2201083
·
IF 8.856
Kai Hou,Jiaxin Wu,Xingchao Li,Xuesen Zhang,Yongqi Sun,Yue Long,Kai Song
The manipulation of light actuators benefits from the advantages of the immediacy of light response. However, the immediacy of light response leads to indispensability of light irradiation in the actuating processes. The actuation after light irradiation stops, i.e., a delayed actuation can execute actuation functions, which is free of direct light irradiation. Here are proposed several delayed actuation systems after light irradiation based on intrinsic delay properties of shape memory alloy materials and additional regulation of soft silicone layers. Continuous motions after light stopping have been realized such as linear and rotating motions. Moreover, the delayed actuation relatively separates the irradiation and actuation, where an operational window period is allowed for task execution in light-preventing scenarios. The delay principle of light actuation overcomes the limitation of immediate response of light manipulation, and is also applicable to more materials and systems.
研究领域:
材料科学
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光学
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机器人技术
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机械工程
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产品关联
DOI
高影响因子
Nanoscale
·
2019
·Vol. 11
·期 8
·3489-3494
·
IF 6.97
Zhen Tian,Pengfei Tian,Xiaojie Zhou,Gufan Zhou,Shiliang Mei,Wanlu Zhang,Xutao Zhang,Di Li,Ding Zhou,Ruiqian Guo,Songnan Qu,Andrey L. Rogach
Herein, we report UV-pumped white light emissive carbon dot (CD)-based phosphors to prevent blue light hazard in phosphor-converted WLEDs. Then, UV-pumped WLEDs with a color rendering index exceeding 85 and VLC with a modulation bandwidth of 75 MHz and a data transmission rate of 224 Mbps have been realized.
研究领域:
材料科学
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光学工程
·
电子工程
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 8.2
Shirui Zhang,Peng Zhang,Hongyu Wen,Junzheng Niu,Yi Huang,Xuhui Xu,Huaiqiang Ba,Yu Zhang,Ru Zhao
Thermochromic smart windows dynamically regulate sunlight transmittance in response to temperature changes, thereby suppressing indoor temperature increases. The near-infrared light in sunlight is the main band that causes the indoor temperature to rise. However, the smart window materials in existing research have significant limitations in the absorption of this band. To optimize the modulation efficiency of the infrared band, upconversion nanoparticles (UCNPs) were introduced into the poly(N-isopropylacrylamide) (PNIPAm) matrix. This approach effectively blocks sunlight when natural visible light is obstructed due to an increase in temperature, thereby supplementing indoor brightness with the NIR-to-visible light conversion capability of UCNPs. The 1 wt % microcrystalline composite hydrogel exhibits the best solar spectral modulation performance: the visible light transmittance is 80.1% at room temperature, and the value is reduced to 34.7% after phase transition. In addition, the smart window achieves a temperature drop of 23 °C compared to that of the standard glass window during all-day modulation. It provides a novel approach to developing thermochromic smart windows with broadband solar spectrum modulation capability and excellent durability.
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产品关联
DOI
PubMed
高影响因子
ACS Applied Electronic Materials
·
2022
·
IF 4.494
Linghui Shen,Tong Wei,Yongchao Shi,Xiangyu Wang,Liwei Wu,Jiao Cui,Tianyang Zhang,Hongzhi Yu,Zepeng Li
Upconversion (UC) luminescence materials with dynamically adjustable activity under external stimuli are of great interest owing to their potential applications in optical storage and high-sensitivity optical switches. Recently, photochromic (PC) effect was considered as an alternate way to regulate the UC luminescence of inorganic materials; however, external-field-induced bleaching was routinely completed by single stimulation, which limited its practical application. In this work, one kind of smart phosphor, Er-activated Bi7Ti4NbO21 intergrowth bismuth layer-structured ceramics that exhibited both intense UC green emission and prominent PC reaction, was synthesized. The UC luminescence, PC effect, and their coupling properties were researched. Interestingly, light–heat and light–light dual-controlled UC luminescence and PC processes were realized. Accompanying the PC effect, the UC luminescence can be reversibly modified by alternating 405 and 532 nm light stimulation (or thermal stimulation). Under 405 nm irradiation, the UC luminescence quenching ratio can reach up to 80.8%. Meanwhile, the UC luminescence raise ratio can respectively reach up to 426.9 and 118.1% under 250 °C thermal treatment and 532 nm light bleaching. The UC luminescence modulation was exposed to be tightly related to the irradiation coloration and thermal/light decoloration processes. Good fatigue resistance of the UC luminescence switching was also achieved. The mechanisms related to the UC luminescence modulation and PC process were discussed. These results indicated that Er-activated Bi7Ti4NbO21 samples can be adopted as a kind of optical data memory materials.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Jie Wang,Changzhou Gao,Jiaojiao Fang,Liang Fang,Chunhua Lu,Zhongzi Xu
Light and heat management in greenhouses are important for crops yield and quality. Here, we created waterborne polyurethane (WPU) composite coatings for greenhouse films, which can act both as ultraviolet (UV) light down-conversion and directional infrared light barrier for the light and temperature conditions in pepper greenhouses. Rare-earth organic complexes (REOC) that can convert UV light to red light were mixed with WPU by ball-milling. The REOC nanoparticles presented good dispersion in WPU coatings, which were determined by atomic force microscopy , and the coating with 1 wt% REOC still remained comparably high transparency. The luminescence properties were increased with REOC loadings. The coatings with REOC showed lower infrared (IR) light transmittance and higher IR light reflectance than those of the pristine film and WPU coatings. The preferable location of the composite coatings on inner side of films acted as IR light barrier and facilitated the maintenance of heat inside the greenhouses, increasing the temperature. Simulation was performed to testify the temperature increase using IR barrier covered layer. Small and big greenhouses with different films were built and the temperatures were recorded. The results show that the film containing REOC increase the temperature in the greenhouses by >2 °C compared to traditional agricultural films. Finally, due to light conversion and IR light barrier, the yields of green peppers can be increased by 35 %. The mass of single fruits can also be increased by 8 g.
研究领域:
农业工程
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材料科学
·
植物科学
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产品关联
DOI
高影响因子
Nanoscale Advances
·
2020
·Vol. 2
·期 11
·5403-5411
·
IF 0
Weidong Han,Su-Hyeong Chae,Taewoo Kim,Daewoo Lee,Hakyong Kim
White-light-emitting materials have received significant attention because of their potential application in lighting, displays, and sensors. However, it is a challenge to obtain white light from one phosphor, because the basic requirement of the white light emission spectrum is that it should be wide enough to cover the entire visible light region. In this study, we have designed and demonstrated a white-light-emitting PMMA–CBS-127/PVP–coumarin 6/PAN–rhodamine B (PSCR) fibrous membrane, which was prepared through a triphasic electrospinning method. Three luminescent organic dyes, CBS-127 (4.77 wt%, blue), coumarin 6 (0.1 wt%, green), and rhodamine B (0.42 wt%, red), were elaborately selected and doped into PMMA, PVP, and PAN, respectively. The resulting flexible PSCR membranes show white light emission (cover the entire visible-light region from 382 to 700 nm) with Commission Internationale de L'Eclairage (CIE) coordinates of (0.31, 0.32), which is very close to ideal white light with CIE coordinates (0.33, 0.33). In addition, the PSCR membranes maintained high-quality white light emission after about 10 weeks of storage. The PSCR membranes can be used as the phosphor converting layer in white light-emitting diodes (WLEDs) through a remote membrane packaging method. A bright white emission is achieved at an applied voltage of 9 V. Therefore, the results indicate that PSCR membranes are potentially attractive candidates for application in WLEDs and displays.
研究领域:
材料科学
·
光学工程
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产品关联
DOI
PubMed
Nature Communications
·
2026
·
IF 18.1
Wang Guojuan,Xiong Wei,Qiu Linrong,Hong Chengwu,Liu Ye,He Yutong,Li Shuxing,Xie Rong-Jun
Laser-driven light sources are critically important for lighting, display, and communication systems. However, the traditional phosphor ceramics used in these light sources suffer from low light conversion efficiency, low color rendering index and narrowly tunable color temperature. Here we present a approach of rapid pulsed high-temperature sintering technology to fabricate phosphor ceramics with both dense and grain refined microstructure simultaneously. It results in a 31% improvement in light conversion efficiency, markedly better color mixing uniformity, and 1.5-fold increased fracture toughness for Lu 3 Al 5 O 12 :Ce ceramics. Moreover, this method enables the Lu 3 Al 5 O 12 :Ce–CaAlSiN 3 :Eu composite ceramics with a 95-fold enhancement in quantum efficiency, showing white light under blue laser excitation with a color rendering index of 93 and good reliability. An accurate emission wavelength prediction model was also established with an interval below 5 nm from 495 to 605 nm, and achieved a broad color temperature range (1996-9803 K). This research enhances the development of high-performance light sources toward lighting and indoor/underwater visible light communication.
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DOI
PubMed
高影响因子
Advanced Optical Materials
·
2022
·Vol. 10
·期 12
·2102742
·
IF 10.05
Wei Chen,Chuan Xu,Lingqing Kong,Xiang-Yang Liu,Xingye Zhang,Naibo Lin,Xinhua Ouyang
It is an essential issue for the efficiency of flexible organic light-emitting diodes (OLEDs) to be improved in display and lighting applications. Herein, the use of silk fibroin (SF) as a flexible OLED substrate with enhanced light extraction efficiency (LEE) is reported. Regenerated SF is prepared via a casting method and then coated with conductive indium tin oxide (ITO) via magnetron sputtering. SF-based flexible OLED outperforms its reference device in terms of turn-on voltage, peak brightness, and LEE, where glass and polyethylene terephthalate are used as rigid and flexible substrates, respectively. The improved device performance can be ascribed to the low refractive index of SF and its lower surface roughness and more matched energy levels compared to those of other substrates, resulting in a high LEE. Notably, a molecular dipole layer can be formed between the interface of ITO and SF. The dipole moment pointing to the ITO surface effectively changes the ITO work function and reduces the potential barrier height for hole transfer. The work provides new ideas for constructing high-performance OLEDs on biomass-based substrates with excellent flexibilities and high LEEs.
研究领域:
材料科学
·
光电技术
·
显示技术
·
柔性电子
✓ 已验证
产品关联
DOI
高影响因子
Collagen and Leather
·
2024
·Vol. 6
·期 1
·1-18
·
IF 0
Zhang Xinyue,Zhan Xue,Hu Chen,Dong Zuqin,Luo Tao,Li Haihang,Fan Xiaoju,Liang Jie,Chen Yafang,Fan Yujiang
The objective of regenerative wound healing dressings is to accelerate skin tissue regeneration and restore normal physiological function at wound sites. Achieving this goal requires biomaterials capable of repairing distinct phases of wound healing in a way that balances material function, degradation, safety, and tissue growth. In this study, we introduced a novel dual-stage wound dressing system comprising methacrylic anhydride-modified recombinant humanized type III collagen (rhCol III-MA) and methacrylic anhydride-modified dopamine (DMA) (RMDM), which was synthesized through free radical polymerization and π-π stacking. Within this system, RMDM was formulated into two forms with identical compositions: hydrogel and sponge, tailored for application across various stages of wound repair. These materials displayed favorable hemocompatibility, biocompatibility, antioxidant properties, and angiogenic potential in vitro . Moreover, the in vivo experiments also demonstrated that sponges could rapidly stop the bleeding of wounds in mouse tail amputation and liver incision models. Notably, the sponge/gel (S/G) system accelerated wound healing compared to individual sponge and gel treatments in a rat full-thickness skin wound model, underscoring the synergistic benefits of combining sponge and gel materials for wound repair at different stages. Therefore, this research provides valuable insights into designing advanced biomaterials that can be tailored to specific stages of wound healing, which may have significant potential for biomedical applications. Graphical Abstract
研究领域:
生物材料
·
组织工程
·
再生医学
·
生物医学
✓ 已验证
DOI
危险品化学品经营许可证（带存储）