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| 1 | Highly stable lead-free Cs3Bi2I9 perovskite nanoplates for photodetection applications显示文摘Lead halide perovskites have received tremendous attentions recently for their excellent properties such as high light absorption coefficient and long charge carrier diffusion length. However, the stability issues and the existence of toxic lead cations have largely limited their applications in optoelectronic area. Herein, we report the synthesis and investigation of highly stable and lead-free Cs3Bi2I9 perovskite nanoplates for visible light photodetection applications. The Cs3Bi2I9 nanoplates were synthesized through a facile solution-processed method, which is also applicable to various substrates. The achieved nanoplates present very good crystal quality and exhibit excellent long-term stability even exposed in moist air for several months. Photodetectors were constructed based on these high-quality perovskite nanoplates for the first time, and display a maximum photoresponsivity of 33.1 mA/W under the illumination of 450 nm laser, which is six times higher than the solution-synthesized CH3NH3PbI3 nanowire photodetectors. The specific detectivity of these devices can reach up to 10^10 Jones. Additionally, the devices exhibit fast rise and decay time of 10.2 and 37.2 ms, respectively, and highly stable photoswitching behavior with their photoresponse well retaining under alternating light and darkness. This work opens up a new opportunity for stable and low-toxic perovskite-based optoelectronic applications. | Zhaoyang Qi Xianwei Fu Tiefeng Yang Dong Li Peng Fan Honglai Li Feng Jiang Lihui Li Ziyu Luo Xiujuan Zhuang Anlian Pan | 2019 | Nano Research2019，12，8： | 7 |
| 2 | High-yield preparation of robust gold nanoshells on silica nanorattles with good biocompatiblity显示文摘Although gold nanoshells are widely considered as one of the promising photothermal nanomaterials used for biomedicine, the high cost, low yield and poor stability severely limit their potential application in clinical trials.Herein, robust gold nanoshells on silica nanorattles(GSNs)were easily prepared in a high yield by an improved seedmediated method employing polyvinylpyrrolidone(PVP) as a stabilizing and capping agent. The present method is very simple, effective and reproducible and can well control the growth process of gold nanoshells. The as-prepared GSNs have a narrow size distribution(<10 % in standard deviation). Furthermore, the utilization rate of Au in the solution used for the growth of gold nanoshells increases by 70 %than that in previous method. The resultant GSNs have a good structural stability after placing over 6 months due to the protection of PVP. More importantly, in vivo and in vitro toxic studies indicate that the GSNs have good biocompatibility. We believe that our preparation method will remarkably promote the use of gold nanoshells for biomedicine. | Changhui Fu Chaofeng He Longfei Tan Shunhao Wang Lu Shang Linlin Li Xianwei Meng Huiyu Liu | 2016 | Science Bulletin2016，61，4： | 5 |
| 3 | A displacement-relay videometric method for surface subsidence surveillance in unstable areas显示文摘When measuring the surface subsidence of unstable areas such as railroad beds and large construction fields, it is not practical to always find stable positions to install measurement instruments. Yet installing those instruments in unstable positions will cause measurement errors or even the complete failure of long-term subsidence surveillance. In this paper, the innovative concept and its method of 'displacement-relay videometrics' are proposed. With the method, a double-headed camera is designed, and two constraints, the 'fixation constraint' and the 'homologous constraint', are established to construct the displacement-relay measurement equations, which can concurrently give the subsidence of the points to be measured and the positions where the cameras are fixed. The method and its measurement system are thus capable of automatically measuring the surface subsidence under the condition that the cameras are mounted on unstable locations over long durations. Therefore, the method has the broad prospect of undertaking automatic, long-term and continuous measurement for surface subsidence in engineering projects such as railroad beds, bridges and the ground beds of tall buildings. The proposed method opens a new area that cameras can be mounted on unstable platform to make high accuracy measurements, which is of great significance for applications. | YU QiFeng JIANG GuangWen SHANG Yang XU Yong LIU XiaoLin FU SiHua GUAN BangLei ZHU XianWei | 2015 | Science China(Technological Sciences)2015，58，6： | 5 |
| 4 | Positive influence of the scattering medium on reflective ghost imaging显示文摘The scattering medium is usually thought to have a negative effect on the imaging process.In this paper,it is shown that the imaging quality of reflective ghost imaging(GI)in the scattering medium can be improved effectively when the binary method is used.By the experimental and the numerical results,it is proved that the existence of the scattering medium is just the cause of this phenomenon,i.e.,the scattering medium has a positive effect on the imaging quality of reflective GI.During this process,the effect from the scattering medium behaves as the random noise which makes the imaging quality of binary ghost imaging have an obvious improvement. | QIN FU YANFENG BAI XIANWEI HUANG SUQIN NAN PEIYI XIE XIQUAN FU | 2019 | Photonics Research2019，7，12： | 3 |
| 5 | Structural design for electrocatalytic water splitting to realize industrial-scale deployment: Strategies, advances, and perspectives显示文摘The green hydrogen generation powered by renewable electricity promises the potential decarbonization of the hard-to-abate sector and is essential for the fulfillment of the Paris Agreement that attempts to limit the global average temperature rise in the range of 1.5–2.0 ℃ above the pre-industrial level by the end of this century. Tremendous efforts have been devoted to the optimization of the electrocatalytic performance of the catalysts under industrial-relevant current densities via rational structure design,which induces a preferential electron distribution that favors the adsorption/desorption behavior of the key intermediates, thus accelerating the reaction kinetics. In this review, a brief introduction of the current energy status will be first presented to necessitate the importance of green hydrogen.Followed by the basic concepts and fundamental understanding of the reaction mechanisms, we present efficient strategies for the enhancement of the electrocatalytic performance of the catalysts to meet the rigorous requirement under industrial conditions and the in-depth understanding behind the reinforcement will be briefly discussed next. Then the recent advances regarding the rational design of electrocatalysts operating at an industrial scale will be summarized. Finally, the challenges and perspectives in this thriving field will be proposed from our point of view. | Xianwei Fu Ruijuan Shi Shilong Jiao Mengmeng Li Qiuye Li | 2022 | Journal of Energy Chemistry2022，31，7： | 2 |
| 6 | Enhanced antibacterial activity of silica nanorattles with ZnO combination nanoparticles against methicillin-resistant Staphylococcus aureus显示文摘Silica nanorattles(SNs) with zinc oxide(ZnO) combination nanoparticles are reported to inhibit methicillin-resistant Staphylococcus aureus(MRSA) for the first time. SNs loaded with ZnO nanoparticles,which can produce free radicals, can cause severe damage to bacteria. ZnO nanoparticles not only provide free radicals in the combined nanostructures, which can inhibit the growth of bacteria, but also form nanorough surfaces with an irregular distribution of spikes on the SNs, which can enhance their adhesion to bacteria. Nanorough silica shell surfaces maintain the high activity and stability of small-sized ZnO nanoparticles and gather ZnO nanoparticles together to enhance production, which improves the efficiency of free radicals against the cytomembranes of bacterial cells. The enhanced adhesion of ZnO@SN nanoparticles to MRSA cells shortens the effective touching distance between free radicals and MRSA, which also improves antibacterial activity. As we expected, the ZnO@SN nanoparticles exhibit a better antibacterial effect than free ZnO nanoparticles against MRSA in vitro and in vivo. We also demonstrate that SNs loaded with ZnO nanoparticles can accelerate wound healing in MRSA skin inflammation models. This method of multilevel functionalization will be potentially applicable to the antibacterial field. | Qianqian Chai Qiong wu Tianlong Liu Longfei Tan Changhui Fu Xiangling Ren Yue Yang Xianwei Meng | 2017 | Science Bulletin2017，62，17： | 1 |
| 7 | Circular array targets detection from remote sensing images based on saliency detection显示文摘 | HAN Xianwei and FU Yili | 2012 | Optical Engineering2012，51，02： | 1 |
| 8 | Development strategies and improved photocatalytic CO_(2) reduction performance of metal halide perovskite nanocrystals显示文摘In recent years,photocatalytic CO_(2)reduction reaction(CRR) has attracted much scientific attention to overcome energy and environmental issues by converting CO_(2)into high-value-added chemicals utilizing solar energy.Metal halide perovskite(MHP) nanocrystals(NCs) are recognized as an ideal choice for CRR owing to their outstanding optoelectronic properties.Although great efforts have been devoted to designing more effective photocatalysts to optimize CRR performance,severe charge recombination,instability,and unsatisfactory activity have become major bottlenecks in developing perovskite-based photocatalysts.In this review,we mainly focus on the recent research progress in the areas of relevance.First,a brief insight into reaction mechanisms for CRR and structural features of MHPs are introduced.Second,efficient modification approaches for the improvement of the photocatalytic activity and stability of the perovskite-based catalysts are comprehensively reviewed.Third,the state-of-the-art achievements of perovskite-based photocatalysts for CRR are systematically summarized and discussed,which are focused on the modification approaches,structure design,and the mechanism of the CO_(2)reduction process.Lastly,the current challenges and future research perspectives in the design and application of perovskite materials are highlighted from our point of view to provide helpful insights for seeking breakthroughs in the field of CRR.This review may provide a guide for scientists interested in applying perovskite-based catalysts for solar-to-chemical energy conversion. | Xianwei Fu Tingting Ren Shilong Jiao Zhihong Tian Jianjun Yang Qiuye Li | 2023 | Journal of Energy Chemistry2023，，8： | 1 |
| 9 | Luminescent silver nanoclusters for efficient detection of adenosine triphosphate in a wide range of pH values显示文摘In this work,polymethacrylic acid(PMAA)-templated silver nanoclusters(Ag NCs)were developed as the fluorescent probe for the efficient and sensitive detection of adenosine triphosphate(ATP)in a wide range of pH values.The fluorescence intensity of the Ag NCs could keep stable with pH values ranging from2.5 to 9.3.The detection of ATP was based on the quenching of the fluorescent Ag NCs in the presence of ATP.The fluorescence quenching of the Ag NCs with increasing ATP concentration was studied at pH 2.5,4.5,7.0 and 8.5 which involved a wide pH environment in body fluids.The limit of detection(LOD)for ATP was as low as 0.1 mmol/L in an acidic environment with pH of 2.5 and all the linear correlation coefficients were satisfactory under wide-span pH values from 2.5 to 8.5.In addition,the sensitive determination of ATP was also achieved by adding copper ions(Cu^2+).The high selectivity and rapid detection process proved that the fluorescent probe had great potential to detect ATP in biological samples under different pH conditions. | Meijia Liu Xiangling Ren Xin Liu Longfei Tan Hui Li Jing Wei Changhui Fu Qiong Wu Jun Ren Hongbo Li Xianwei Meng | 2020 | Chinese Chemical Letters2020，31，12： | 1 |
| 10 | Pressure-sensitive Transistor Fabricated from an Organic Semiconductor 1,1'-Dibutyl-4,4'-bipyridinium Diiodide显示文摘 | FU Xianwei LIU Yang LIU Zhi DONG Ning ZHAO Tianyu ZHAO Dan LIAN Gang WANG Qilong CUI Deliang | 2018 | Chemical Research in Chinese Universities2018，34，1： | 0 |
| 11 | Nanoscale metal organic frameworks inhibition of pyruvate kinase of M2显示文摘Tumor cells usually show abnormally high glycolysis rate to maintain the dynamic balance of energy.The growth of tumor cells can be affected by inhibiting the activity of pyruvate kinase(especially M2-type isozyme,PKM2),the rate limiting enzyme of glycolysis.This is helpful to the treatment of tumor.Herein,metal organic frameworks(MOFs) were found to inhibit the activity of PKM2.Nanoscale ZIF-8 was synthesized by standing and ultrasonic method,respectively.The ZIF-8 has the performance of inhibiting PKM2.Further research showed that the inhibition ability was attributed to zinc ion in ZIF-8.Interestingly,the IC_(50) of ZIF-8 on PKM2 was one percent of that of zinc ion.This novel enzyme inhibitor is expected to be used in cancer therapy. | Xiangling Ren Xinyuan Huang Qiong Wu Longfei Tan Changhui Fu Yi Chen Xianwei Meng | 2021 | Chinese Chemical Letters2021，32，10： | 0 |
| 12 | Zirconium metal-organic framework nanocrystal as microwave sensitizer for enhancement of tumor therapy显示文摘Although surgical resection and chemotherapy were widely applied in tumor therapy, the dysfunction of normal cells resulted in the side effects (such as anorexia, nausea). MW thermal therapy is a non-invasive anticancer strategy under the help of MW sensitizer, with the safety and higher efficacy. Zirconium metal-organic framework nanocubes (ZrMOF NCs) modified with polyethylene glycol, were prepared via one pot method and carbodiimide technique, resulting in their large specific surface area and porosity.Our results showed that non-ion-loaded ZrMOF NCs in 0.9% NaCl solution exhibited better heating effect,higher than that in pure water, due to the robust collision among the ions under MW irradiation. The in vivo experiments confirmed that ZrMOF-PEG NCs + MW group exhibited the higher temperature in the tumor region than that of only MW treatment, suggesting a better MW thermal therapeutic anticancer efficacy. This work provides a new preparation strategy of biosafety nanomaterial as MW sensitizer for enhancing MW thermal anticancer therapy. | Yuanwen Zou Wei Zhang Hongqiao Zhou Changhui Fu Longfei Tan Zhongbing Huang Xiangling Ren Jun Ren Xudong Chen Xianwei Meng | 2019 | Chinese Chemical Letters2019，30，2： | 0 |
| 13 | 肿瘤微环境通过诱导NK细胞代谢重编程抑制杀伤功能显示文摘文章简介自然杀伤(NK)细胞是一种效应淋巴细胞,在机体抵抗肿瘤过程中发挥至关重要的作用。NK细胞无需预先致敏,即能够直接杀伤肿瘤细胞,并且能够通过分泌细胞因子促进适应性免疫的抗肿瘤作用。基于上述原理,NK细胞在肿瘤免疫治疗中的价值已得到广泛认可。 | 丛靖婧 Xianwei Wang Xiaohu Zheng Dong Wang Binqing Fu Rui Sun 田志刚 魏海明 | 2019 | 科学新闻2019，0，2： | 0 |
| 14 | Chemical chaperone delivered nanoscale metal–organic frameworks as inhibitor of endoplasmic reticulum for enhanced sensitization of thermo-chemo therapy显示文摘Thermotherapy and chemotherapy have received extensive attention to tumor treatment. However, thermal tolerance and drug resistance severely limit clinical effect of tumor therapy owing to endoplasmic reticulum(ER) stress. Reducing thermal tolerance and drug resistance of tumors is an urgent challenge to be solved. In this work, we design a nanoplatform of PBA-Dtxl@MIL-101 as an ER inhibitor. Amino functionalized Fe-metal organic framework(MIL-101) nanoparticles are synthesized as p H and microwave(MW) dual stimuli-responsive drug delivery system. Then, the chemical chaperones of 4-phenylbutyric acid(PBA) and antineoplastic drug Docetaxel(Dtxl) were successfully loaded into MIL-101 nanoparticles to form PBA-Dtxl@MIL-101 nanoparticles. Furthermore, PBA-Dtxl@MIL-101 nanoparticles exhibit inhibitor effect of ER stress through upregulating caspase 9 proteins and reduce thermal tolerance by downregulating HSP 90. It was demonstrated that the therapy sensitized by PBA-Dtxl@MIL-101 nanoparticles obviously destroyed tumor cells, showing simultaneously enhanced thermo-chemo therapy. | Xiaoyan Ma Qiong Wu Longfei Tan Changhui Fu Xiangling Ren Qijun Du Lufeng Chen Xianwei Meng | 2022 | Chinese Chemical Letters2022，33，3： | 0 |
| 15 | Thermodynamic Modeling and Simulation of Air System Control Device显示文摘This paper aims to obtain the thermodynamic characteristics of the air system control device sealing part in different compressor bleed air and ambient temperature.On the basis of considering the main factors affecting the heat exchange process and simplifying the physical model of the air system control device,the thermodynamic model of air system control device is established based on the basic theory of laminar flow heat transfer and heat conduction theory.Then the piston motion characteristics and the thermodynamic characteristics of the air system control device seal are simulated.The simulation results show that the valve actuation dynamic time of piston is about 0.13 s in the actual working conditions,and the temperature effect on the dynamic response of the piston rod is only 5 ms when the inlet air temperature at 300 ℃ and 370 ℃.The maximum temperature of the air system control device sealing part is not more than 290 ℃ under long time working condition of compressor air entraining.The highest temperature of the sealing part can reach up to 340 ℃ when the air flow temperature reaches the limit temperature of 370 ℃,and the longest duration working temperature limit is not more than 14 s.Therefore,the selection of control device sealing material should consider the work characteristic of instantaneous temperature limit. | FU Jiangfeng LI Huacong LIU Xianwei HONG Linxiong | 2019 | Transactions of Nanjing University of Aeronautics and Astronautics2019，36，3： | 0 |
| 16 | Toxicity and bio-distribution of carbon dots after single inhalation exposure in vivo显示文摘Because of the advantages of excellent light stability, carbon dots(CDs) are considered to be a promising agent in the bio-marker application. Nevertheless, there are many unresolved issues with the toxicity of CDs in vitro and in vivo. In the study, CDs were synthesized by citric acid and ethylenediamine into deionized water, then the inhalation toxicity and bio-distribution of CDs in vivo were systematically assessed. The results showed that CDs caused animals death at higher dosages and induced injury in the lung and liver including inflammation and necrosis after single inhalation exposure at 5, 2 and 1 mg/kg dosages of the CDs. We also found that the injury increase with a dose-dependent and time-dependent manner. Fluorescent examination and TEM results showed that CDs mainly located at the lung and liver.And the fluorescent intensity increase with a time-dependent manner. This study provides a theoretical basis of the respiratory toxicity of CDs, and provides a basis for the use of CDs as a bio-marker. | Yue Yang Xiangling Ren Zhenning Sun Changhui Fu Tianlong Liu Xianwei Meng Zili Wang | 2018 | Chinese Chemical Letters2018，29，6： | 0 |
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