CRYSTENGCOMM
·
2011
·Vol. 13
·期 6
·2071-2076
·
IF 4.006
Weimin Du,Dehua Deng,Zhitao Han,Wei Xiao,Cheng Bian,Xuefeng Qian
Single-crystalline, hexagonal tin disulfide (SnS2) nanoplatelets were successfully synthesized through an improved solvothermal process with SnCl4·5H2O and carbon disulfide (CS2) as precursors. The crystal phase, morphology, and crystal lattice of the prepared products were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM), respectively. Results reveal that the synthesized SnS2 nanoplatelets are in the hexagonal structure with 20–60 nm in diameter and 7–10 nm in thickness. The structural and HRTEM analysis indicates that the formation of SnS2 nanoplatelets with hexagonal morphology result from the accelerating growth of six energetically equivalent high-index crystalline planes {110} and the retarded growth of {001} crystalline planes. The photocatalytic degradation properties of hexagonal SnS2 nanoplatelets driven by solar light were further investigated with Rhodamine B (RhB) as simulating pollutant. Results show that these SnS2 nanoplatelets have a good performance of photocatalytic degradation on RhB, and the decolorizing rate can reach 97.7% after being irradiated for 70 min by solar light. Better photocatalytic properties indicate that hexagonal SnS2 nanoplatelets are a type of promising photocatalyst driven by solar light and have potentially applied prospects in wastewater treatment and environmental protection.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2022
·Vol. 10
·期 17
·2200386
·
IF 10.05
Yue-Yue Ma,Yu-Ming Sun,Wen-Jie Xu,Xue-Lei Liu,Qian-Qian Zhong,Ying-Rui Song,Han-Qi Fu,Cheng-Yang Yue,Xiao-Wu Lei
Despite remarkable luminescent performance of 0D lead halide perovskites, achieving highly efficient blue light emission is extremely challenging and crucial for this domain. Considering the high toxicity of Pb 2+ ion, it is significant to explore water-stable lead-free 0D halides as highly efficient and stable blue emitting materials. To address these issues, a family of 0D hybrid zinc halides of AZnBr 4 (A = EP, BP, and TMPDA) based on discrete [ZnBr 4 ] 2− tetrahedrons is herein reported as desirable blue light emitters. The wide band gaps enable these 0D halides to display highly efficient blue light emissions (452–485 nm) with highest photoluminescence quantum yield (PLQY) of 35.47%. More importantly, all these 0D halides present extraordinary chemical stabilities in humid air and water for one month, and are also capable of withstanding extreme pH conditions in the range of 0–14, likely the widest observed pH range for perovskites. Notably, the ultrahigh chemical stabilities of 0D zinc halides are nearly unmatchable among all known literature perovskite materials to the best of the authors’ knowledge. Combined superiorities of unusual blue light emission, promising PLQY, ultrahigh stability, and non-toxicity highlight the potential optoelectronic applications in wide chemical environments for these 0D zinc halides.
研究领域:
材料科学
·
光学
·
化学
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2015
·Vol. 25
·期 20
·2961-2971
·
IF 11.805
Kai Han,Qi Lei,Shi-Bo Wang,Jing-Jing Hu,Wen-Xiu Qiu,Jing-Yi Zhu,Wei-Na Yin,Xu Luo,Xian-Zheng Zhang
In this paper, a self-delivery system PpIX-PEG-(KLAKLAK) 2 (designated as PPK) is fabricated to realize mitochondria-targeted photodynamic tumor therapy. It is found that the PPK self-delivery system exhibited high drug loading efficacy as well as novel capacity in generation of intracellular reactive oxygen species (ROS). This study also indicated that the photochemical internalization effect of the photosensitizer protoporphyrin IX (PpIX) under a short time light irradiation improved the cellular internalization of PPK. On the contrary, PPK could target to the subcellular organelle mitochondria due to the presence of proapoptosis (KLAKLAK) 2 peptide. Importantly, the in situ generation of ROS in mitochondria enhanced the photodynamic therapy efficacy under another long time irradiation, leading to significant cell death with decreased mitochondrial membrane potential. Besides, relative high tumor accumulation, minimal systemic cytotoxicity and efficacious long-term tumor inhibition in vivo are also confirmed by using a murine model. All these results demonstrated the self-delivery system PPK with a dual-stage light irradiation strategy is a promising nanoplatform for tumor treatment.
研究领域:
生物医学工程
·
肿瘤学
·
药剂学
✓ 已验证
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2022
·
IF 12.545
Liangwen Hao,Weitao Yang,Yan Xu,Tianming Cui,Guoqi Zhu,Weiwei Zeng,Kexin Bian,Hongying Liang,Pengfei Zhang,Bingbo Zhang
The pandemic of highly contagious diseases has put forward urgent requirements for high sensitivity and adaptive capacity of point-of-care testing (POCT). Herein, for the first time, we report an aggregation-induced emission (AIE) dye-energized light-initiated afterglow nanoprobes (named LiAGNPs), implemented onto a lateral flow immunoassay (LFIA) test strip, for diagnosis of two highly contagious diseases, human immunodeficiency virus (HIV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as model validation. The primary working mechanism relies on the cyclically generated singlet oxygen ( 1 O 2 )-triggered time-resolved luminescent signals of LiAGNPs in which AIE dyes (TTMN) and chemiluminescent substrates (SO) are loaded. The designed LiAGNPs were found 2-fold and 32-fold sensitive than the currently used Eu(III)-based time-resolved fluorescent nanoparticles and gold nanoparticles in lateral flow immunoassay (LFIA), respectively. In addition, the extra optical behaviors of nude color and fluorescence of LiAGNPs enable the LFIA platform with the capability of the naked eye and fluorescent detection to satisfy the applications under varying scenarios. In short, the versatile LiAGNPs have great potential as a novel time-resolved reporter in enhancing detection sensitivity and application flexibility with LFIA platform for rapid but sensitive infectious disease diagnostics.
研究领域:
生物医学工程
·
分析化学
·
传染病学
·
纳米技术
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2020
·
IF 4.049
Feng Huo,Ting wan,Yaohui Wang,Yuhang Liu,Pran Gopal Karmaker,Xiupei Yang
An enhanced fluorescence detection system of capillary electrophoresis (CE) was equipped with a concave silver mirror, by which the detection sensitivity of light-emitting diode induced fluorescence (LEDIF) can be increased greatly. The silver concave mirror and the cathode window in photomultiplier tube (PMT) were accurately set face to face at the same axis. When the two labeled tumor markers exactly moved to the center of detection window, the emission from analytes are excitated by LED source. Currently, the analytes may be regarded as a luminescent source point. When the source point exactly moves to the focus of the concave mirror, the emission of the labeled sample was collected effectively, enhanced by convergence and reflected by the concave mirror. Then it was sensitively detected by the PMT. The optical mechanism of enhancing detection sensitivity was explored. A simple comparative test on sensitivity was carried out, which aimed to compare sensitivity of the new detection system with concave mirror to that without concave mirror but the other conditions were kept the same. Two tumor markers labeled with FITC were selected for the test, using the simple LEDIF detect system. The results (LOD, 150 nM for L-Leu and L-Val) showed that the detection sensitivity matched with concave mirror reached more 16 times than the detection method without concave mirror.
研究领域:
分析化学
·
生物医学工程
·
光学
✓ 已验证
DOI
PubMed
高影响因子
ACS Nano
·
2020
·
IF 14.588
Tengyang Ye,Fei Xiu,Shuai Cheng,Chaoyi Ban,Zhihui Tian,Yingying Chen,Yamei Ding,Ziwei Zhen,Juqing Liu,Wei Huang
Realizing multiple functions and sustainable manufacturing within the same electronic device would be highly attractive from a design and fabrication perspective. Here we demonstrate a recyclable dual-mode thin-film device that can perform both light emission and heat management simultaneously. The device is composed of a dissolvable emitting layer sandwiched between two undissolvable conducting films. The vertical multilayered device enables a highly flexible and foldable multicolor electroluminescent emission ranging from yellow or blue to white, and the coplanar monolayered conductor achieves tunable Joule heat temperature setting. By utilizing selective dissolution and artificial reconstruction of each layered component, the parent device shows full recyclability and reconstructability without severe performance degradation after several recycles. The proof-of concept device provides an ideal strategy to construct a multifunctional film system with recyclability and makes a significant contribution to scientific and technological advancement in low-cost sustainable electronics and optoelectronics.
研究领域:
材料科学
·
电子工程
·
可持续技术
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2019
·Vol. 7
·期 21
·1900775
·
IF 7.125
Qianyi Guo,Minchen Wei,Zekun Zheng,Xiongjian Huang,Xiaoqian Song,Shao-Bin Qiu,Xiao-bao Yang,Xiaofeng Liu,Jianrong Qiu,Guoping Dong
Polymeric g-C 3 N 4 with controllable photoluminescence emission wavelength in the whole visible light range (450–650 nm) is synthesized through the one-step molecular doping during the thermal condensation process of g-C 3 N 4 conjugated framework, which opens up its application beyond the conventional catalysis scopes. By adjusting the doped content of hetero-molecules, the modified g-C 3 N 4 with the optical properties controlled according to the demand of practical applications can be facilely and largely obtained. It overcomes the limitation of the narrow adjusting range of conventional g-C 3 N 4 on optical properties and makes it become more promising for applications in solid-state displays. The corresponding multiple-color g-C 3 N 4 -based LED devices and the white-light LEDs with high quality can be obtained as supported by experiments and theoretical calculations. Moreover, the effect of doped molecule on the π-conjugated system of g-C 3 N 4 is systematically studied here, and the tunable luminescence mechanism is proposed.
研究领域:
材料科学
·
光学工程
·
化学
✓ 已验证
DOI
高影响因子
Bioactive Materials
·
2021
·
IF 14.593
Yilun Luo,Xiaowen Zheng,Peiqi Yuan,Xingyao Ye,Lie Ma
Due to the critical roles of macrophage in immune response and tissue repair, harnessing macrophage phenotypes dynamically to match the tissue healing process on demand attracted many attentions. Although there have developed many advanced platforms with dynamic features for cell manipulation, few studies have designed a dynamic chemical pattern to sequentially polarize macrophage phenotypes and meet the immune requirements at various tissue repair stages. Here, we propose a novel strategy for spatiotemporal manipulation of macrophage phenotypes by a UV-induced dynamic Arg-Gly-Asp (RGD) pattern. By employing a photo-patterning technique and the specific interaction between cyclodextrin (CD) and azobenzene-RGD (Azo-RGD), we prepared a polyethylene glycol-dithiol/polyethylene glycol-norbornene (PEG-SH/PEG-Nor) hydrogel with dynamic RGD-patterned surface. After irradiation with 365-nm UV light, the homogeneous RGD surface was transformed to the RGD-patterned surface which induced morphological transformation of macrophages from round to elongated and subsequent phenotypic transition from pro-inflammation to anti-inflammation. The mechanism of phenotypic polarization induced by RGD pattern was proved to be related to Rho-associated protein kinase 2 (ROCK2). Sequential modulation of macrophage phenotypes by the dynamic RGD-patterned surface provides a remote and non-invasive strategy to manipulate immune reactions and achieve optimized healing outcomes.
研究领域:
生物材料
·
组织工程
·
免疫学
·
细胞生物学
✓ 已验证
DOI
PubMed
高影响因子
Theranostics
·
2026
·Vol. 16
·期 10
·5259
·
IF 14.9
Shuailei Wang,Ze Qiang Zhao,Yumiao He,Bo Zhi Chen,Hongju Liu,Xin Dong Guo,Yuguang Huang
Rationale Effective local anesthesia with rapid onset and minimal invasiveness is essential for certain minor surgeries, such as aesthetic procedures, but remains difficult to achieve with conventional local anesthesia. Methods A photothermal-responsive microneedle system (LiH/MXene@MNs) was developed, consisting of lidocaine-loaded needle tips and a backing layer in which MXene was confined exclusively. This system employs a spatial design that separates the drug and photothermal components, allowing efficient drug delivery under short-term near-infrared (NIR) irradiation. Mechanical, optical, and histological assessments were performed to evaluate the system's properties. In vitro and in vivo studies were conducted to assess biosafety and invasiveness, while behavioral tests were performed in a rat plantar incision model to evaluate the onset and duration of anesthesia. Results The LiH/MXene@MNs system exhibited robust skin penetration and high drug-loading efficiency. Behavioral tests in a rat plantar incision model further verified that anesthesia onset was induced within 5 minutes and sustained for up to 60 minutes on this platform, comparable to that achieved with invasive injection. Additionally, the system exhibited minimal invasiveness and excellent biosafety, as demonstrated by both in vitro and in vivo studies. Conclusions The LiH/MXene@MNs platform offers an efficient, minimally invasive, and safe alternative to traditional local anesthesia techniques. This approach holds strong potential for use in minimally invasive aesthetic procedures, providing a promising solution for rapid and effective pain management
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS SCIENCE FORUM
·
2017
·
IF 0
Ming Shan Yang,Peng Wei Yin,Hong Liang Tong
The narrow particle size distribution of poly (vinyl silicone) microspheres were prepared by the hydrolysis-polycondensation method with vinyl silane (VTMS) as raw materials. And the influences of pH value, oil/water ratio on the morphology, particle size and distribution of the microspheres were studied. The results shows that the particle size of microspheres decrease with the increasing of the PH value of polymerization, and the particle size has no specific linear relationship with the PH value of hydrolysis reaction, while the oil-water ratio is smaller, single particle size distribution is more narrow, more uniform distribution.
研究领域:
材料科学
·
高分子化学
·
胶体与界面科学
✓ 已验证
DOI
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Yuxin Liu,Feixue Gao,Shuya Liu,Hangxi Liu,Ming Fang,Xiaoli Tan
The utilization of near-infrared (NIR) light may greatly enlarge the application range of irradiated light of a photocatalyst, which is still an issue needing to be solved. In this work, CdTe nanoparticles are firstly found to be endowed with the capacity to photo-reduce Cr(VI) to Cr(III) under infrared light irradiation. The CdTe nanoparticles are prepared under a facile hydrothermal condition, with diameters of approximately 22 nm, which shows high photo-reduced efficiencies to Cr(VI) of 82.44% at the irradiation of a Xe lamp (500 W, including the visible light and infrared light), and 25.54% under the irradiation of infrared light, respectively. The active species of e − , h + , and OH participate in the reduction of Cr(VI), and the photogenerated e − and OH both play a critical role in the infrared light region. This study proposes a new pathway for Cr(VI) photoreduction in wastewater under visible-NIR light irradiation which shows an application potential as a photocatalyst at the infrared light range and provides new insights for pollution reduction and environmental improvement.
✓ 已验证
产品关联
DOI
高影响因子
Light-Science & Applications
·
2022
·Vol. 11
·期 1
·1-9
·
IF 20.257
Ju Songman,Zhu Yangbin,Hu Hailong,Liu Yang,Xu Zhongwei,Zheng Jinping,Mao Chaomin,Yu Yongshen,Yang Kaiyu,Lin Lihua,Guo Tailiang,Li Fushan
Interactive display devices integrating multiple functions have become a development trend of display technology. The excellent luminescence properties of perovskite quantum dots (PQDs) make it an ideal luminescent material for the next generation of wide-color gamut displays. Here we design and fabricate dual-function light-sensing/displaying light-emitting devices based on PQDs. The devices can display information as an output port, and simultaneously sense outside light signals as an input port and modulate the display information in a non-contact mode. The dual functions were attributed to the device designs: (1) the hole transport layer in the devices also acts as the light-sensing layer to absorb outside light signals; (2) the introduced hole trapping layer interface can trap holes originating from the light-sensing layer, and thus tune the charge transport properties and the light-emitting intensities. The sensing and display behavior of the device can be further modulated by light signals with different time and space information. This fusion of sensing and display functions has broad prospects in non-contact interactive screens and communication ports.
✓ 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）