RSC Advances
·
2018
·Vol. 8
·期 6
·2873-2879
·
IF 2.936
Dongxia Li,Jin Qin,Jinzhi Lv,Jiajia Yang,Guiqin Yan
Biosensors based on excellent optical properties of quantum dots (QDs) nanohybrids are efficient for biological detection. In this work, a room-temperature phosphorescent (RTP) PDAD–Mn–ZnS QDs biosensor was constructed with poly(diallyldimethylammonium chloride) (PDAD) as the modifier of MPA-capped Mn–ZnS QDs, and used to detect hyaluronic acid (HA). The newly-added HA induced severe electrostatic interaction with PDAD–Mn–ZnS QDs, leading to the aggregation between PDAD–Mn–ZnS QDs and HA and thereby enhancing RTP. The enhancement of RTP was proportional to the HA concentrations within certain ranges. On this basis, a high-performance HA sensor was built and this sensor had a detection limit of 0.03 μg mL−1 and a detection range of 0.08–2.8 μg mL−1. This proposed RTP sensor can avoid interferences from the background fluorescence or scattering light of the matrix that are encountered in spectrofluorometry. Thus, this biosensor is potentially suitable for detection of HA in real samples without complicated pretreatment.
研究领域:
生物化学
·
纳米技术
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanomaterials
·
2020
·Vol. 10
·期 12
·2479
·
IF 4.324
Shimin Li,Qianqian Xu,Ziji Zhou,Wenchao Zhao,Xiaowen Li,Zhengji Wen,Yao Yao,Hao Xu,Huiyong Deng,Ning Dai,Jiaming Hao
Transparent heat mirrors have been attracting a great deal of interest in the last few decades due to their broad applications, which range from solar thermal convection to energy-saving. Here, we present a flexible Polyethylene terephthalate/Ag-doped Indium tin oxide/Polydimethylsiloxane (PAIP) thin film that exhibits high transmittance in visible range and low emissivity in the thermal infrared region. Experimental results show that the temperature of the sample can be as high as 108 °C, which is ~23 °C higher than that of a blackbody control sample under the same solar radiation. Without solar radiation, the temperature of the PAIP thin film is ~6 °C higher than that of ordinary fabric. The versatility of the large-area, low-radiation-loss, highly-transparent and flexible hydrophobic PAIP thin film suggest great potential for practical applications in thermal energy harvesting and manipulation.Keywords:Ag-doped ITO;transparent heat mirrors;thermal applications;flexible;transparent
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICAL CHEMISTRY
·
2017
·
IF 6.32
Weiqiang Yang,Jiancong Ni,Fang Luo,Wen Weng,Qiaohua Wei,Zhenyu Lin,Guonan Chen
Carbon dots (CDs) emerge as excellent fluorescent nanomaterials, but the full exploitation and application of their exceptional properties in the development of fluorescence assay are still rare. In this work, cationic carbon dots (C-CDs) covered with plenty of positive charges on the surface were synthesized through a facile ultrasonic method. Negatively charged hyaluronic acid (HA) caused the aggregation of positively charged C-CDs and neutral red (NR) along its linear chain via electrostatic adsorption, leading to a remarkable Förster resonance energy transfer (FRET) from C-CDs to NR. However, the presence of hyaluronidase (HAase) resulted in the enzymolysis of HA, as well as the liberation of C-CDs and NR. The corresponding change of fluorescence color from red to green-yellow afforded a reliable ratiometric assay for HAase. Also the ratio of fluorescence intensity for C-CDs (I525) to that for NR (I630) was used for quantitative detection of HAase. The proposed sensing system was easily operated in aqueous media with a detection limit of 0.05 U/mL. This strategy provides a new approach for the wider application of some special CDs in detecting biomolecules.
研究领域:
生物化学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Forests
·
2024
·Vol. 15
·期 2
·384
·
IF 2.4
Yang Liu,Yi Zhang,Jianhui Guo,Gaiping Guo,Cheng Li
Transparent wood has excellent optical and thermal properties and has great potential utilization value in energy-saving building materials, optoelectronic devices, and decorative materials. In this work, transparent wood with soft-/hard-switchable and shape recovery capabilities was prepared by introducing an epoxy-based polymer with a glass transition temperature of about 0 °C into the delignified wood template. The epoxy resin was well filled in the pore structure of the delignified wood, and the as-prepared wood exhibited excellent transparency; the optical transmittance and haze of the transparent wood with a thickness of 2.0 mm were approximately 70% and 95%, respectively. Because the glass transition temperature of the epoxy-based polymer was about 0 °C, the prepared transparent wood was rigid below 0 °C and flexible above °C; meanwhile, the transparent wood exhibited shape change and shape recovery properties. Incorporating optical transparency and soft-/hard-switchable ability into the transparent wood opens a new avenue for developing advanced functional wood-based materials.
研究领域:
材料科学
·
林业工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 20
·7162-7168
·
IF 5.7
Zhenghao He,Zhiqiang Bao,Xiaoyang Guo,Ying Lv,Tienan Wang,Yuejia Ma,Xingyuan Liu
Transparent displays are one of the development directions of future displays, and have great application potential in smart windows, wearable electronic products, virtual reality technology, touch screens and other fields. Perovskite materials have high fluorescence quantum efficiency and high color purity, which make a thin luminous layer achieve high device performance, making us foresee their potential application in the field of transparent displays in the future. However, due to the limitations of the modulation of the luminescent layer and top transparent electrodes, the performance of transparent perovskite light-emitting diodes (TPeLEDs) still has a certain gap compared to the traditional perovskite light-emitting diodes (PeLEDs). In this work, the first blue emitted TPeLEDs were prepared by using quasi two-dimensional perovskite materials and multilayer transparent top electrodes. By designing and optimizing the performance of the luminescent layer and the structure of the top transparent electrode, the transmittance and device efficiency of TPeLEDs were enhanced. The best TPeLED shows a maximum transmittance of nearly 70%, and displays a maximum brightness of 2294 cd m−2 and a maximum external quantum efficiency (EQE) of 11.73%.
研究领域:
材料科学
·
光学工程
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2019
·
IF 2.687
Xiaoying Li,Qiang Liu,Hongming Pan,Nan Jiang,Zhaoxiang Yang,Tengfei Xie,Lexiang Wu,Jiang Li
Terbium gallium garnet (TGG) ceramics were fabricated by air sintering and successive HIP post-treating from the TGG nanoparticles synthesized via the co-precipitation technique. The influences of the calcination temperature on the phase and morphology evolution of the nano-powders, as well as the optical transparency and microstructure of the obtained TGG ceramics were investigated in detail. The powders calcined at 1100–1250 °C retained the TGG phase purity and displayed significantly less agglomeration. Using the above powders as raw materials, the TGG ceramics pre-sintered at 1500 °C for 3 h in air and then HIP post-treated at 1550 °C for 3 h under 150 MPa argon gas showed the similar optical qualities and the in-line transmittances were about 70% at 1064 nm. The Verdet constants of all the ceramics were calculated to be about 137 rad T −1 m −1 at room temperature, which were nearly independent of the optical quality of the ceramics.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2023
·
IF 3
Bin Cheng,Kaiwen Zhuang,Na Liu,Yilin Guo,Jiangxi Chen,Guomei He
Transparent polymer with excellent heat resistance and mechanical properties play an important role in many fields. However, transparent polyetheretherketones films are rarely reported, probably due to their high crystallinity. In this work, a transparent polymer polyetherketone was prepared from the reaction of 4,4′-difluorobenzophenone, 2,6-bis(4-hydroxybenzylidene) cyclohexanone, and tert-butylhydroquinone in the presence of K 2 CO 3 . This new polymer has excellent thermal stability, high glass transition temperature (T g = 172°C), good film-casting property, high transparency, good hydrophobicity, and low saturated water absorption (0.52%). The material has broad application prospects in flexible solar cells, UV protection, and thin insulation materials.
研究领域:
材料科学
·
聚合物化学
✓ 已验证
DOI
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2025
·Vol. 32
·期 3
·1-9
·
IF 2.8
Xian Wenqi,He Maoyi,Zheng Rui,Liu Zhu,Lu Ming,Chu Yuehuan,Cao Hao
CO 2 copolymer diol (PPCD) with superior transparency is an indispensable raw material for the polyurethane, especially for waterborne polyurethane coatings. However, commercial PPCD is generally opaque. In this work, A sustainable, colorless and transparent PPCD was prepared by using carbon dioxide (CO 2 ) and propylene oxide (PO) as raw materials. Research shows that the increase in CO 2 content (from 23.5 wt.% to 31.5 wt.%) will affect the transparency and thermal stability of PPCD and the transparency of PPCD with 29.1 wt.% CO 2 content is even higher than 90%, while the 5 wt.% mass loss temperature reaches 240.1 ℃. Furthermore, a series of waterborne polyurethane (WPU) was successfully synthesized by prepolymer method with PPCD as the soft segment. With the increase of CO 2 content, the thermodynamic property of WPU was significantly improved. When CO 2 content increased from 23.50 wt.% to 31.50 wt.%, the tensile strength increased from 23.27 MPa to 34.63 MPa and the elongation at break decreased from 750.85% to 520.37%, accompanied by the glass-transition temperature increased from -49.7 ℃ to -34.5 ℃. In addition, it was found that WPU prepared by transparent PPCD has better tensile strength, transparency, and storage stability. A new inspiration was provided for its application in the fields of optical components, transparent medical materials and UV curable coatings.
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
CHINESE JOURNAL OF POLYMER SCIENCE
·
2024
·
IF 4.1
Wang He,Liu Zhen-Chao,Shang Xue,Feng Li-Dong,Bian Xin-Chao,Chen Xue-Si
A series of transparent crosslinked colorless polyimide (CPI) films are prepared from 3,3′,4,4′-biphenyltetracarboxylic dianhydride (BPDA), 2,2′-bis(trifluoro-methyl)benzidine (TFMB), and 4,4′-oxydianiline (ODA) by thermal imidization, incorporating varying contents of 2,2′-(1,3-phenylene)bis(2-oxazoline) (1,3-PBO) as the crosslinking agent. Following the incorporation of the crosslinking structure, the CPI films show good optical transparency (approximately 85% winthin visible light range), enhanced glass transition temperature (from 325 °C to 341 °C), and improved thermal stability, and tensile strength. Notably, compared with the pristine uncrosslinked CPI, these crosslinked CPI films significantly increase in elongation at break (from 5.4% to 44.2%). Furthermore, the new approach ensures that crosslinked CPIs improve heat resistance and mechanical properties, while avoiding the embrittlement of materials. This study also offeres straightforward preparation methods for optically transparent crosslinked polyimides without additional processing steps. All these results make this approach can effectively improve the competitive performance of the CPI films for potential applications in microelectronic and optoelectronic fields.
研究领域:
材料科学
·
高分子化学
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2018
·
IF 5.667
Xiangqian Li,Zhan Zhou,Yiping Tang,Cheng Cheng Zhang,Yuhui Zheng,Jinwei Gao,Qianming Wang
The development of nanoprobes with high sensitivity and specificity for tumor marker detection has gained increasing attention in biological applications. Here, we have designed and synthesized a novel 4,4',4”,4”'-(ethene-1,1,2,2-tetrayltetrakis(benzene-4,1-diyl))tetrakis (1-(4-bromobenzyl)pyridin-1-ium) bromide (TPE-4N + ) based aggregation induced emission (AIE) fluorescent sensor and it gives rise to electrostatic adsorption towards hyaluronic acid (HA), resulting in an effective emission recovery in yellow-greenish region. In the presence of hyaluronidase (HAase), the enzymatic digestion between HA and HAase induces the fluorescence quenching and this “ on-off ” change has been analyzed by two consecutive linear equations. The low detection limit is determined to be 0.02 U/mL by quantitative evaluation and its practical application has been verified by detecting human urine samples. It is promising that this new approach can be utilized to study a wide variety of other depolymerization reactions.
研究领域:
生物化学
·
医学诊断
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2019
·Vol. 30
·期 22
·225201
·
IF 3.399
Yaguo Cai,Xianqing Piao,Xuejiao Yao,Wei Gao,Er Nie,Zhejuan Zhang,Zhuo Sun
In this paper, hybrid transparent conductive films (TCFs) are designed by combining silver nanowires with the single-wall carbon nanotubes (SWCNTs) and the transparent heating films (THFs) based on the TCFs are evaluated for possible vehicle applications. By comparing the properties, including the transmittance, sheet resistance, microstructure and heating curves, we found that the SWCNTs/AgNWs are considerably suitable for making THFs. The after-treatment methods, such as physical method (hot roll pressing) and chemical method (nitric acid and Poly (diallydimethylammonium chloride) solution, (PDAC)) were researched in detail to optimize the sheet resistance and transparency to fit the THF requirements. A careful study of the different after-treatment methods revealed that hot roll pressing can quickly and efficiently improve the properties, while the nitric acid is more helpful than PDAC for the long-term stability. The results showed that a small amount of SWCNTs addition can promote the endurable maximum electric current by spreading the heat fast and efficiently, and the maximum current flow can be as high as 4 A. The thermal stability of the THFs and the de-frog performance were tested, indicating that the hybrid film had an advantage in resisting current shock and good thermal efficiency was obtained. The fabricated TCFs of stable thermal properties are qualified as a windshield-glass heater.
研究领域:
材料科学
·
纳米技术
·
汽车工程
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 41
·22182-22193
·
IF 14.511
Guanhua Zhang,Yanli Zhao,Jin Hu,Huaizhi Liu,Tianwei Chen,Huihuang Yu,Huigao Duan
Flexible transparent energy storage systems are urgently desirable to power flexible intelligent electronics, but their development is hampered by the inevitable trade-off between optical transparence and areal capacity. Here, we report a freestanding ultralight (0.54 mg cm−2) nickel micromesh (NM) with exceptional optoelectronic characteristics (Rs = 0.7 Ω sq−1, T = 92.1%) and outstanding mechanical flexibility for flexible transparent supercapacitors. Based on the developed transparent NM, the positive electrode is further constructed by integrating the highly conductive NM with the high-capacity NiCoP (NM@NiCoP), which achieves a specific capacity as high as 11.1 μAh cm−2 with a transmittance of 80.2%. Additionally, a flexible transparent negative electrode is also developed by loading ZIF-8 derived nitrogen-doped porous carbon onto NM (NM@NPC). The assembled solid-state flexible transparent asymmetric supercapacitor with an optical transmittance of 67.5% yields a high areal energy density of 8.0 μW h cm−2 and an extremely stable capacity retention of 97.6% with 50 000 cycles at 10 mA cm−2 as well as mechanical stability even under harsh bending modes. A controllable and universal approach to conquer the trade-off between the specific energy density and optical transparence of the flexible transparent energy supply units is proposed in this work.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）