Science Advances
·
2025
·Vol. 11
·期 10
·
IF 12.5
Lu Wang,Yishun Guo,Ben Chen,Si Lu,Jianhua Yang,Yingying Jin,Xinyi Wang,Xinyue Sun,Shuting Wang,Bailiang Wang
Microneedles directly penetrating into the cornea inevitably cause pain, corneal structure damage, and reduced light transmittance. In this work, a minimally invasive annular microneedle (A-MN) patch was developed avoiding direct puncture into the central cornea for ophthalmic drug delivery. The feasible mechanical strength of A-MNs was achieved by adjusting the ratio of PVP-β-CD and PVA to puncture the cornea barrier. Through effective diffusion to corneal stroma, bioavailability of hydrophilic small-molecule drugs, hydrophobic drugs, and macromolecular protein drugs through an A-MN patch was 24.36, 17.47, and 5.36 times higher than that of free drug administration. A-MNs effectively maintained light transmittance of the cornea with a light transmittance of 96.33 to 100%, which was higher than that of S-MNs. Furthermore, A-MNs effectively avoided corneal tissue and nerve damage along with the pain. The efficiency and safety of A-MNs were also examined through both an in vitro cell experiment and an in vivo animal experimental model, which showed great potential in clinical application.
研究领域:
药学
·
生物医学工程
·
眼科
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2021
·
IF 2.495
Chang-An Xu,Mangeng Lu,Kun Wu,Jun Shi
Nano-cellulose is widely used in the fields of double-hydrophobic interface fabric, high-grade protective clothing, chemical industry and medicine. Although the research of nano-cellulose has received widespread attention, because of its strong intermolecular force, its dispersion in the medium is not ideal. In order to further increase the dispersion of nano-cellulose in the medium, one of the methods used is to weaken the hydrogen bonding between nano-cellulose by chemical route. In this work, nano-cellulose is simply modified by coupling agent in environment-friendly solvent. Different analytical methods are used to verify the successful modification of nano-cellulose. The results show that the dispersibility of the modified nano-cellulose in water is improved, and the thermal stability is enhanced in the range of 300–567℃. It is worth remarking that the transmittance of the modified nano-cellulose in visible light still remains above 85%. This study provides a feasible, simple and environmental-friendly strategy for developing the application of nano-cellulose, especially in the field of photopolymerization, radical polymerization and cross linking reaction.
研究领域:
材料科学
·
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2024
·
IF 6.3
Yunqi Wang,Xinyu Tan,Xiongbo Yang,Guiguang Qi,Yiteng Tu
The rising temperature of ground objects under solar irradiation has led people to an increasing dependence on cooling methods that consume huge energy such as air conditioners and fans. Building windows and vehicle windows also have caused huge losses of energy due to allowing sunlight to enter. Therefore, it is of great significance to simultaneously endow outdoor application materials with radiative cooling capacity and adjustable light transmittance. In this study, hydroxypropyl cellulose (HPC) hydrogel radiative cooler was developed with high emissivity (0.96) and excellent visible light modulation ability (ΔT lum ) with a high maximum transmittance (91.2 %) and ΔT lum (83.8 %). An ultra-low phase change temperature of 45 °C is achieved to meet insulation requirements and energy saving targets under hot climatic conditions. In the outdoor experiment, the HPC hydrogel radiative cooler can reduce the temperature by approximately 5 °C and 15 °C compared with the ordinary glass and aluminum sheet. The HPC hydrogel after phase transformation shows excellent cooling effect on different substrates such as glass and aluminum sheet. After 20 heating/cooling cycles and one month of exposure, the transmittance and ΔT lum of the cooler have no obvious changes. The significant temperature rise suppression effect and transmittance adjustable performance of the HPC hydrogel radiative cooler opens up a promising avenue for application.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-11
·
IF 36.3
Liu Xianhu,Zhang Haoyu,Pan Yamin,Ma Jun,Liu Chuntai,Shen Changyu
As living standards improve, the energy consumption for regulating indoor temperature keeps increasing. Windows, in particular, enhance indoor brightness but also lead to increased energy loss, especially in sunny weather. Developing a product that can maintain indoor brightness while reducing energy consumption is a challenge. We developed a facile, spectrally selective transparent ultrahigh-molecular-weight polyethylene composite film to address this trade-off. It is based on a blend of antimony-doped tin oxide and then spin-coated hydrophobic fumed silica, achieving a high visible light transmittance (> 70%) and high shielding rates for ultraviolet (> 90%) and near-infrared (> 70%). When applied to the acrylic window of containers and placed outside, this film can cause a 10 °C temperature drop compared to a pure polymer film. Moreover, in building energy simulations, the annual energy savings could be between 14.1% ~ 31.9% per year. The development of energy-efficient and eco-friendly transparent films is crucial for reducing energy consumption and promoting sustainability in the window environment.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Yan Jiang,Zehai Wang,Lin Zhou,Shan Jiang,Xiuyu Liu,Hui Zhao,Qin Huang,Lijun Wang,Guoning Chen,Shuangfei Wang
Transparent lignocellulose nanopaper (LNP) has been demonstrated to be a promising candidate light-management material for next-generation optical engineering applications. Similar to its role in plant cell walls, lignin serves as a vital functional component in LNP matrices. However, its intrinsic light absorption property renders LNP undesirable for a range of optical management systems. Here, a highly efficient, controllable and ecofriendly lignin modification strategy is developed for modulating the optical performance of LNPs by taking advantage of the beneficial synergistic effect of H 2 O 2 and UV light in selectively eliminating lignin chromophores . The obtained lignin-modified LNP features not only a high visible light transmittance (89%) but also a high haze (90%) and excellent UV-shielding capacity, owing to the well-preserved lignin aromatic skeleton structures after lignin modification. Furthermore, patterning is easily achieved on hot-pressing-induced densified LNPs through a selective lignin modification approach, which endows LNPs with intriguing optical designability. Benefitting from the multifunctionality of lignin components for nanopaper matrices, patterned LNPs demonstrate outstanding water and thermal stability, barrier properties, durability and biodegradability, which are of great significance for practical applications. Furthermore, we demonstrate the great applicability of this optically designable and multifunctional LNP as a light-management material for energy efficient buildings by highlighting its attractive sun- and indoor- light managing effects, effective thermal insulation , as well as superior durability for long-term use. In combination with its efficient, ecofriendly and controllable production, this novel high-performing LNP holds great potential in many other applications that require light-management structural materials, such as optoelectronic and sensing devices.
研究领域:
材料科学
·
光学工程
·
绿色化学
✓ 已验证
DOI
高影响因子
NANOTECHNOLOGY
·
2020
·Vol. 32
·期 5
·055603
·
IF 3.551
Wenwen Wang,Zhonglin Yang,Yujia Gu,Zelei Wu,Guixin Wang,Guinan Chen,Minchu Huang,Chenhui Xu,Cui Ye,Wang Zhang,Jianwei Nai,Yongwu Peng,Jun Pan,Changhui Ye
Silver nanowires are susceptible to degradation under ultraviolet (UV) light illumination. Encapsulating silver nanowire transparent conductive films (AgNW TCFs) with UV shielding materials usually result in the increasing of the sheet resistance or the decrease of the visible light transparency. Herein, we combine a reducing species (FeSO4) and a thin layer (overcoating) of UV shielding material to solve the stability and the optical performance issues simultaneously. The AgNW TCFs show excellent stability under continuous UV light illumination for 14 h, and their sheet resistance varies only 6%. The dramatic enhancement of the stability against UV light illumination for as-obtained TCFs will make them viable for real-world applications in touch panels and displays.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Yifan Liu,Jiazuo Zhou,Yudong Li,Xiaohan Sun,Ziyao Wang,Haiyue Yang,Chengyu Wang
Gels as compelling soft material shows its promising versatility in actuators, soft electronics, and biomedical sensors. However, most gel materials are too rigid to cope with long-term changing scenarios and specific needs. Inspired by the switchable behavior of bio-behavior of muscle, the study reports a thermodynamically controllable and stiffness-transformative cellulose-salt gel by simple thermal mixing of hydrous salt, cellulose nanofiber, and polyacrylamide. The achieved cellulosic gel with dynamic microstructure presents an amazing stiffness switchability between crystalline state and melted states of 32.38 to 0.02 MPa, as well as the regulable light transmittance between 41.59% and 93.43%. In addition, this cellulose-salt gel has excellent thermal controllable behavior. That is, by controlling the crystallization process, the cellulose-salt gel displays the start-stop releasing-energy behaviors on demand. Enabled by these outstanding properties, the study further demonstrates the promising application of cellulose-salt gel in controllable soft-rigid coupling thermoelectric device, showing the broader implications for wearable electronics aiming at on-demand work.
研究领域:
材料科学
·
软体机器人
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2021
·
IF 15.881
Chao Wang,Na Meng,Aijaz Ahmed Babar,Xiaobao Gong,Gaohui Liu,Xianfeng Wang,Jianyong Yu,Bin Ding
Currently, the quest for highly transparent and flexible fibrous membranes with robust mechanical characteristics, high breathability, and good filtration performance is rapidly rising because of their potential use in the fields of electronics, energy, environment, medical, and health. However, it is still an extremely challenging task to realize transparent fibrous membranes due to serious surface light reflection and internal light scattering. Here, we report the design and development of a simple and effective topological structure to create porous, breathable, and high visible light transmitting fibrous membranes (HLTFMs). The resultant HLTFMs exhibit good optical performance (up to 90% transmittance) and high porosities (>80%). The formation of such useful structure with high light transmittance has been revealed by electric field simulation, and the mechanism of fibrous membrane structure to achieve high light transmittance has been proposed. Moreover, transparent masks have been prepared to evaluate the filtration performance and analyze their feasibility to meet requirement of facial recognition systems. The prepared masks display high transparency (>80%), low pressure drop (<100 Pa) and high filtration efficiency (>90%). Furthermore, the person wearing this mask can be successfully identified by facial recognition systems. Therefore, this work provides an idea for the development of transparent, breathable, and high-performance fibrous membranes.
研究领域:
材料科学
·
环境科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Qianyi Li,Shanshan Deng,Donglai Li,Junlin Yang,Haibo Jin,Jingbo Li
Cesium tungsten bronze (Cs x WO 3 ), a unique energy-saving material, has attracted great interest because of its excellent visible transmittance and near-infrared absorption. In order to improve its optical properties , the Ti doping modification was carried out in this work, and a series of Ti-doped Cs X WO 3 (Ti-Cs x WO 3 ) nanopowders were synthesized by a solvothermal reaction and post-annealing. The 1.71 at. % of Ti dopants achieved remarkable enhancement of both integral visible transmittance ( T lum , 380–780 nm) and near-infrared shielding efficiency ( Ψ NIR , 780–2500 nm) of Cs x WO 3 . The T lum and Ψ NIR of the 1.71 at. % Ti-Cs x WO 3 polymer film reaches 63.87 % and 76.90 %, respectively, higher by 51.88 % and 65.00 % than those of the Cs x WO 3 film. The improvement of T lum is attributed to the broadening of band gap and smaller size of the nanoparticles induced by Ti doping, and the enhanced Ψ NIR would result from the increased free electron concentration and energy levels of impurities. The incorporation of Ti elements renders Cs x WO 3 a promising application in the field of energy saving.
研究领域:
材料科学
·
纳米技术
·
光学材料
·
能源效率
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Hao Liang,Guang Yang,Meng Zhang,Daiqi Zhou,Fang Xia,Barbara E. Etschmann,Joël Brugger,Viktor Taktas,Yanfeng Gao
Windows are essential for advancing energy efficiency, yet fabricating window materials that simultaneously achieve high visible light transmission, exceptional and ultrabroadband near-infrared (NIR) shielding, neutral color appearance, excellent stability, and cost-effective, sustainable production remains a significant challenge. This study introduces ferrous ion-doped phosphosilicate glass (Fe 2+ -PSG), a material that meets all these criteria, establishing itself as a promising candidate for energy-efficient windows. Comprehensive characterization using Raman spectroscopy, synchrotron X-ray absorption near edge spectroscopy (XANES), UV–Vis-NIR transmission spectroscopy, and structural analysis reveals that the glass achieves superior visible light transmission performance (T lum = 84.1 ± 0.3 %) and a neutral color temperature of 6753 ± 45 K. These remarkable properties are primarily attributed to the formation of colorless ferrous [FeO 6 ] units, whose unique coordination environment is precisely controlled through phosphorus incorporation. Superior ultrabroadband NIR-shielding (750–2500 nm), with a high NIR-shielding figure of merit of 1.8 ± 0.1, is enabled by the incorporation of larger alkali ions such as K + and Cs + . Additionally, Fe 2+ -PSG demonstrates exceptional stability, maintaining its performance after 12 months under ambient conditions and 24 h in hot water at 80 °C and in air at 120 °C. These high-performance characteristics are attributed to structural modifications that alter the splitting energy of ferrous ions, enabling precise control over optical properties across the visible and NIR spectrum. Manufactured using the scalable and cost-effective melt-quench method, Fe 2+ -PSG offers a practical solution for sustainable window production, addressing limitations of current technologies and paving the way for real-world applications.
研究领域:
材料科学
·
光学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL PHYSICS LETTERS
·
2021
·
IF 2.328
Zhiqiang Li,Mingyue Sun,Beiping Dong,Juncheng Liu
Sb/Yb co-doped SnO 2 film was deposited on the glass with sol–gel to prepare high thermal insulation film with high visible transmittance. Its crystal structure is consistent with that of SnO 2 . Its sheet resistance first decreases then increases with Yb doping content, gets the minimum at 9.0 mol%, reduced about an order of magnitude compared with Sb doped film. Its visible average transmittance (380–780 nm) fluctuates a bit, gets the minimum 79.0% at 9.0 mol%, the maximum 84.1% at 6.0 mol%. Its average near-infrared transmittance (780–2500 nm) gets the minimum 27.9% at 9.0 mol%, decreases 70.2% compared with the glass.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2019
·
IF 4.784
Xiong-Fei Zhang,Lian Song,Zhongguo Wang,Yaquan Wang,Lin Wan,Jianfeng Yao
This work investigates the ultraviolet (UV) shielding property of composite films synthesized with graphene oxide (GO) nanosheets and regenerated cellulose . Regenerated cellulose was prepared from ZnCl 2 /CaCl 2 /GO solution. The GO sheets presented a homogenous dispersion in the film matrix. The incorporation of GO endows the cellulose films with improved UV shielding capacity. When GO loading reaches 2%, the UVA and UVB blocking percentages are 66.7% and 54.2%, respectively. Moreover, the composite films had excellent visible light transmittance. The resulting films possess promising applications as protective and packing materials.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）