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1LAG-3 expression on tumor-infiltrating T cells in soft tissue sarcoma correlates with poor survival显示文摘Objective: To elucidate the role and prognostic significance of lymphocyte activation-gene-3(LAG-3) in soft tissue sarcoma(STS).Methods: The expression of LAG-3 in patient and matched normal blood samples was analyzed by flow cytometry. The localization and prognostic values of LAG-3^+ cells in 163 STS patients were analyzed by immunohistochemistry. In addition, the expression of tumor-infiltrating CD3^+ T, CD4^+ T, and CD8^+ T cells and their role in the prognosis of STS were evaluated by immunohistochemistry. The effect of LAG-3 blockade was evaluated in an immunocompetent MCA205 fibrosarcoma mouse model.Results: Peripheral CD8^+ and CD4^+ T cells from STS patients expressed higher levels of LAG-3 than those from healthy donors.LAG-3 expression in STS was significantly associated with a poor clinical outcome(P = 0.038) and was correlated with high pathological grade(P < 0.001), advanced tumor stage(P = 0.016). Additionally, LAG-3 expression was highly correlated with CD8^+ T-cell infiltration(r = 0.7034, P < 0.001). LAG-3 was expressed in murine tumor-infiltrating lymphocytes, and its blockade decreased tumor growth and enhanced secretion of interferon-gamma by CD8^+ and CD4^+ T cells.Conclusions: LAG-3 blockade may be a promising strategy to improve the effects of targeted therapy in STS.Yi Que Zhixin Fang Yuanxiang Guan Wei Xiao Bushu Xu Jingjing Zhao Huoying Chen Xinke Zhang Musheng Zeng Yao Liang Xing Zhang 2019Cancer Biology & Medicine2019,16,2:9
2Efficient manipulations of circularly polarized terahertz waves with transmissive metasurfaces显示文摘The unrestricted control of circularly polarized(CP)terahertz(THz)waves is important in science and applications,but conventional THz devices suffer from issues of bulky size and low efficiency.Although Pancharatnam-Berry(PB)metasurfaces have shown strong capabilities to control CP waves,transmission-mode PB devices realized in the THz regime are less efficient,limiting their applications in practice.Here,based on Jones matrix analysis,we design a trilayer structure(thickness of ~λ/5)and experimentally demonstrate that the structure can serve as a highly efficient transmissive meta-atom(relative efficiency of ~90%)to build PB metadevices for manipulating CP THz waves.Two ultrathin THz metadevices are fabricated and experimentally characterized with a z-scan THz imaging system.The first device can realize a photonic spin Hall effect with an experimentally demonstrated relative efficiency of ~90%,whereas the second device can generate a high-quality background-free CP Bessel beam with measured longitudinal and transverse field patterns that exhibit the nondiffracting characteristics of a Bessel beam.All the experimental results are in excellent agreement with full-wave simulations.Our results pave the way to freely manipulate CP THz beams,laying a solid basis for future applications such as biomolecular control and THz signal transportation.Min Jia Zhuo Wang Heting Li Xinke Wang Weijie Luo Shulin Sun Yan Zhang Qiong He Lei Zhou 2019Light(Science & Applications)2019,8,1:9
3Graphene-enabled electrically controlled terahertz meta-lens显示文摘Metasurfaces have become a new photonic structure for providing potential applications to develop integrated devices with small thickness, because they can introduce an abrupt phase change by arrays of scatterers. To be applied more widely, active metasurface devices are highly desired. Here, a tunable terahertz meta-lens whose focal length is able to be electrically tuned by ~4.45λ is demonstrated experimentally. The lens consists of a metallic metasurface and a monolayer graphene. Due to the dependence of the abrupt phase change of the metasurface on the graphene chemical potential, which can be modulated using an applied gate voltage, the focal length is changed from 10.46 to 12.24 mm when the gate voltage increases from 0 to 2.0 V. Experimental results are in good agreement with the theoretical hypothesis. This type of electrically controlled meta-lens could widen the application of terahertz technology.WEIGUANG LIU BIN HU ZONGDUO HUANG HONGYU GUAN HETING LI XINKE WANG YAN ZHANG HONGXING YIN XIAOLU XIONG JUAN LIU YONGTIAN WANG 2018Photonics Research2018,6,7:8
4Prognostic value of programmed death.1, programmed death-ligand 1, programmed death-ligand 2 expression, and CD8(+) T cell density in primary tumors and metastatic lymph nodes from patients with stage T1.4N+M0 gastric adenocarcinoma显示文摘Background: Anti-programmed death-1/programmed death-ligand 1(PD-1/PD-L1) immunotherapy has been proved to be effective on gastric cancer in ongoing clinical trials. However, the value of PD-L1 in predicting responses of patients with gastric cancer to anti-PD-1/PD-L1 immunotherapy is controversial. Some studies suggested that intra-and inter-tumoral heterogeneity of PD-L1 expression might explain the controversy.This study aimed to analyze the expression of PD-L1, PD-L2, and PD-1 as well as CD8(+) T-cell density in primary tumors and lymph nodes from patients with stage T1-4 N+M0 gastric adenocarcinoma to explore the heterogeneity of PD-1 signaling pathway molecules.Methods: In primary tumors and metastatic as well as non-metastatic lymph nodes from patients with stage T1-4 N+M0 gastric adenocarcinoma, we detected PD-L1 and PD-L2 expression with immunohistochemistry. CD8(+)T-cell density in primary tumors and PD-1 expression on CD8(+)T cells were detected with immunofluorescence. Univariate analysis was used to determine the prognostic values of them. Cox proportional hazard regression model was used to identify independent risk factors that affect patients' overall survival and disease-free survival.Results: Among 119 eligible patients who had undergone surgical resection, the positive rate of PD-L1 was higher in metastatic lymph nodes than in primary tumors(45.4% vs. 38.7%, P = 0.005); the positive rate of PD-1 on CD8(+)T cells was significantly higher in primary tumors and metastatic lymph nodes than in tumor-free lymph nodes(both P < 0.001). The intensity of PD-1 expression on CD8(+) T cells in primary tumors and in metastatic lymph nodes were stronger than that in tumor-free lymph nodes from the same patient. Beside, the positive rate of PD-L2 did not show any differences between primary tumors and metastatic lymph nodes. In multivariate analysis, PD-L1 expression,PD-L2 expression, a low density of CD8(+) T cells in primary tumors, and PD-1 expression on CD8(+) T cells in primary tumors were associated with poor prognosis.Conclusion: The expression of PD-L1 is heterogeneous in primary tumors and in metastatic lymph nodes from patients with stageT1-4 N+M0 gastric adenocarcinoma, which might explain the inconsistent results in assessing the prognostic value of PD-L1 expression in previous studies.Yuan Gao Su Li Dazhi Xu Shangxiang Chen Yuchen Cai Wenqi Jiang Xinke Zhang Jin Sun Kefeng Wang Boyang Chang Fenghua Wang Minghuang Hong 2017Chinese Journal of Cancer2017,36,11:8
5Sediment provenance and evolution of the East Asian winter monsoon since 700 ka recorded by major elements in the West Philippine Sea显示文摘To synthetically realize the character of major-element compositions as well as its significance for provenance and paleoenvironment recorded in core sediments of the West Philippine Sea over the last 700 ka,grain size and major elements of 221 bulk sediments,together with major-element compositions in the detrital phase of 16 typical samples,in core MD06-3047 collected from the Benham Rise were analyzed.Both discrimination plot and R-mode factor analysis indicate that vertical changes of major elements are mainly controlled by the sedimentation of nearby volcanic matter and the eolian dust input,whereas influences from marine biologic deposition and hydrothermal activity are minor.In particular,Al2O3 and K2O are representative of an eolian dust factor.The variation in the eolian dust factor score is characterized by the obviously glacial-interglacial periodicity and can be well compared with the paleotemperature record of the Antarctic ice core and the evolution of the East Asian winter monsoon(EAWM) recorded in the Chinese loess sequence,and then offers a new proxy for the evolution history of eolian dust input into the study area that is controlled by the EAWM intensity and aridity in the continental source regions of atmospheric dust.XU ZhaoKai LI TieGang YU XinKe LI AnChun TANG Zheng CHOI JinYong NAN QingYun 2013Chinese Science Bulletin2013,58,9:7
6Reservoir differences and formation mechanisms in the Ke-Bai overthrust belt,northwestern margin of the Junggar Basin,China显示文摘There are some differences in reservoir quality of clastic rock between the hanging wall and the foot wall of the Ke-Bai overthrust belt,northwestern margin of the Junggar Basin,western China,which affect the effi cient petroleum exploration in this highly mature exploration area. Based on a large number of thin-sections,cast thin-sections,and physical property analysis of cores,we systematically discuss the Permian-Jurassic reservoir differences between the hanging wall and the foot wall of the Ke-Bai overthrust fault from the aspects of structural evolution,time-space distribution of the depositional system,diagenesis characteristics,and reservoir quality and analyzed the reasons for the differences in reservoir properties. The overthrusting of the Ke-Bai fault directly results in different burial histories,diagenesis evolution,and porosity evolution between the hanging wall and the foot wall. The differences of reservoir characteristics are mainly embodied in buried depth,grain size,sedimentary facies,diagenetic stage,and reservoir quality. The analysis results showed that burial history and depositional characteristics controlled by overthrusting are direct influencing factors of reservoir differences. Because of shallow burial depth of the hanging wall,the reservoir compaction is weak and primary pores are preserved well. The porosity of reservoir on the hanging wall is generally 10%-25%. The strata on the foot wall are deeply buried,and there are mainly mixed pores with the average porosity of 5%-20%. The favorable reservoir on the foot wall is generally developed near faults or in the channel sand bodies,which are usually dissolution development areas.Zhu Xiaomin Zhu Shifa Xian Benzhong Chen Shuping Kuang Lichun Xue Xinke Xue Jingjing You Xincai 2010Petroleum Science2010,7,1:7
7Mechanism and kinetics study on removal of Iron from phosphoric acid by cation exchange resin显示文摘Iron element is one of the main impurities in wet-process phosphoric acid and it has a significant impact on the subsequent phosphorus chemical products. This paper studied the feasibility of using Sinco-430 cation exchange resin for iron removal from phosphoric acid. The specific surface area and the total exchange capacity of resin were 8.91 m2·g-1 and 5.18 mmol·g-1, respectively. The sorption mechanism was determined by FTIR and XPS and the results indicated that iron was combined with-SO3 H in resin. The removal process was studied as a function of temperature, H3 PO4 content and mass ratio between resin and solution. The unit mass of resin to remove iron was 0.058 g·g-1 resin when the operating parameters were T = 50 ℃, H3 PO4 content = 27.61 wt%and S/L = 0.1, respectively. Kinetics study demonstrated that pseudo-second-order reaction model fits this study best and the calculated activation energy of overall reaction is 29.10 kJ·mol-1. The overall reaction process was mainly controlled by pore diffusion.Xinke Leng Yanjun Zhong Dehua Xu Xinlong Wang Lin Yang 2019Chinese Journal of Chemical Engineering2019,27,5:7
8Study on characteristics of double surface VOC emissions from dry fiat-plate building materials显示文摘This paper sets up an analytic model of double surface emission of volatile organic com- pound (VOC) from dry,flat-plate building materials. Based on it,the influence of factors including air change rate,loading factor of materials in the room,mass diffusion coefficient,partition coefficient,con- vective mass transfer coefficient,thickness of mate- rials,asymmetric convective flow and initial VOC concentration distribution in the building material on emission is discussed. The conditions for simplifying double surface emission into single surface emission are also discussed. The model is helpful to assess the double surface VOC emission from flat-plate building materials used in indoor furniture and space partition.WANG Xinke ZHANG Yinping ZHAO Rongyi 2006Chinese Science Bulletin2006,51,18:5
9Effects of 12C6+ heavy ion beam irradiation on the p53 signaling pathway in HepG2 liver cancer cells显示文摘重离子横梁被认为是为放射疗法的理想的来源。细胞内部的 apoptosis 表明的 p53 肿瘤 suppressor 基因感觉 DNA 损坏和 transducts。以前的报告证明重离子横梁能触发细胞的 DNA 的损坏的复杂形式,导致房间周期拘捕和 HepG2 人的肝癌症房间的 apoptosis;然而,机制充分仍然保持不清楚。为了探索内在或外来的小径是否参与这,处理, HepG2 房间在 0 的剂量(控制)与12C6+ HIB 照耀被对待,有各种各样的方法的 1 , 2 , 4 ,和 6 Gy 采用了理解相关机制例如 apoptosis 的察觉,由流动 cytometry 的房间周期,和船边交货表示,由扫描共焦的显微镜学,并且屏蔽差别的电子显微镜学和激光的 apoptotic 形态学的分析表示了关于旁边表明小径的 p53 的基因这研究显示出在 6 Gy 的剂量的重离子横梁照耀导致的那 12C6+ 经由 synergistic 的人的 HepG2 房间的内长的 DNA 双海滨损坏, G2/M 房间周期拘捕,和 apoptosis 外来、内在的小径完成。差别在表明与 DNA 损坏修理, apoptosis,周期规定,转移,恶化和辐射抵抗有关的小径的 p53 表示了基因也被发现。因而,船边交货, TP53BP2, TP53AIP1,和 CASP9 的表情是在 12C6+ HIB 照耀处理以后的证实的 upregulated。在结论,这研究表明了 12C6+ 导致的抑制和 apoptosis 的机制 HepG2 癌症房间上的重离子横梁照耀被表明小径包括的 p53 的生物功能的开始调停外来、内在的 apoptosis 小径(吗?作者 2017。代表生物化学和房间生物学的研究所由牛津大学出版社出版了,为生物科学的上海研究所,中国科学院。版权所有。为权限,请发邮件:journals.permissions@oup.com。)Kai Liu Xinke Zhao Jing Gu Jianjun Wu Hong Zhang Yingdong Li 2017Acta Biochimica et Biophysica Sinica2017,49,11:5
10Distribution, sources and burial fl ux of sedimentary organic matter in the East China Sea显示文摘Distribution of total organic carbon(TOC),total nitrogen(TN),stable isotope ratio of organic carbon and nitrogen(δ13 C andδ15 N)in 31 surface sediments were examined to quantitatively discriminate the source and burial of sedimentary organic matter(SOM)in the East China Sea(ECS).Results show that high content of TOC and TN occurred in the southern inner shelf and the northeast area due to the transport of organic matter(OM)from the Changjiang(Yangtze)River southwards by the Zhejiang Fujian Coastal Current(ZFCC)and the delivery from the old Huanghe(Yellow)River estuary by the Subei Coastal Current(SbCC),respectively.The signifi cant relationship of TOC to clay provided evidence that the fi ne-grained sediment was the primary carrier for SOM from the inner shelf to open sea.The TN varied proportionally to the TOC with the neglected intercept,suggesting that most of nitrogen measured was related to the SOM and the infl uence of the sorption of inorganic nitrogen was insignifi cant.The seaward enrichment ofδ13 C and seaward depletion of C/N andδ15 N illustrated the decrease of terrestrial OM(TOM)and the increase of marine OM(MOM).The close of average C/N ratio to the Redfi eld ratio indicated the minor role of terrestrial plant debris in the SOM.Distribution of bulk OM properties was ascribed to the terrestrial and marine input by the shelf circulation and phytoplankton with the contributions of 76.1%MOM and 23.9%TOM to SOM,respectively.The burial fl ux of OC ranged within 0.34–7.56 mg/(cm 2∙a)(averaged 2.80 mg/(cm 2∙a))and enriched along the shore and in the fi ne-grained area,manifesting the signifi cant input of the land-based sources and the eff ect of shelf mud depositional process on the fate of SOM.The sharp seaward decrease of burial fl uxes of terrestrial and marine OC gave evidences that the majority of organic carbon were settled in the inner shelf with the small fraction of them further transported eastwards.WU Xiaodan WU Bin JIANG Mingyu CHANG Fengming NAN Qingyun YU Xinke Saren Gaowa 2020Journal of Oceanology and Limnology2020,38,5:5
11The relationships of vitamin D, vitamin D receptor gene polymorphisms, and vitamin D supplementation with Parkinson's disease显示文摘In recent years,many studies have investigated the correlations between Parkinson's disease(PD)and vitamin D status,but the conclusion remains elusive.The present review focuses on the associations between PD and serum vitamin D levels by reviewing studies on the associations of PD with serum vitamin D levels and vitamin D receptor(VDR)gene polymorphisms from PubMed,Web of Science,Cochrane Library,and Embase databases.We found that PD patients have lower vitamin D levels than healthy controls and that the vitamin D concentrations are negatively correlated with PD risk and severity.Furthermore,higher vitamin D concentrations are linked to better cognitive function and mood in PD patients.Findings on the relationship between VDR gene polymorphisms and the risk of PD are inconsistent,but the Fokl(C/M)polymorphism is significantly linked with PD.The occurrence of Fokl(CT)gene polymorphism may influence the risk,severity,and cognitive ability of PD patients,while also possibly influencing the effect of Vitamin D3 supplementation in PD patients.In view of the neuroprotective effects of vitamin D and the close association between vitamin D and dopaminergic neurotransmission,interventional prospective studies on vitamin D supplementation in PD patients should be conducted in the future.Lingling Lv Xuling Tan Xinke Peng Rongrong Bai Qile Xiao Ting Zou Jieqiong Tan Hainan Zhang Chunyu Wang 2020Translational Neurodegeneration2020,9,3:5
12SHY2 as a node in the regulation of root meristem development by auxin, brassinosteroids, and cytokinin显示文摘In multicellular organisms,the balance be-tween cell division and differentiation determines organ size,and represents a central unknown in devel-opmental biology.In Arabidopsis roots,this balance is mediated between cytokinin and auxin through a reg-ulatory circuit converging on the IAA3/SHORT HYPO-COTYL 2(SHY2)gene.Here,we show that crosstalk between brassinosteroids(BRs)and auxin occurs in the vascular transition zone to promote root meristem de-velopment.We found that BR increases root meristem size by up-regulating expression of the PINFORMED 7(PIN7)gene and down-regulating expression of the SHY2 gene.In addition,BES1 could directly bind to the pro-moter regions of both PIN7 and SHY2,indicating that PIN7 and SHY2 mediate the BR-induced growth of the root meristem by serving as direct targets of BES1.Moreover,the PIN7 overexpression and loss-of-function SHY2 mutant were sensitive to the effects of BR and could partially suppress the short-root phenotypes associated with deficient BR signaling.Interestingly,BRs could inhibit the accumulation of SHY2 protein in response to cytokinin.Taken together,these findings suggest that a complex equilibrium model exists in which regulatory interactions among BRs,auxin,and cytokinin regulate optimal root growth.Taotao Li Xinke Kang Wei Lei Xiuhong Yao Lijuan Zou Dawei Zhang Honghui Lin 2020Journal of Integrative Plant Biology2020,62,10:5
13Monolithic integration of MoS2-based visible detectors and GaN-based UV detectors显示文摘With the increasing demand for high integration and multi-color photodetection for both military and civilian applications, the research of multi-wavelength detectors has become a new research hotspot. However, current research has been mainly in visible dual-or multi-wavelength detectors, while integration of both visible light and ultraviolet(UV) dual-wavelength detectors has rarely been studied. In this work, large-scale and high-quality monolayer MoS2 was grown by the chemical vapor deposition method on transparent free-standing GaN substrate. Monolithic integration of MoS2-based visible detectors and GaN-based UV detectors was demonstrated using common semiconductor fabrication technologies such as photolithography, argon plasma etching, and metal deposition. High performance of a 280 nm and 405 nm dual-wavelength photodetector was realized.The responsivity of the UV detector reached 172.12 A/W, while that of the visible detector reached 17.5 A/W.Meanwhile, both photodetectors achieved high photocurrent gain, high external quantum efficiency, high normalized detection rate, and low noise equivalent power. Our study extends the future application of dual-wavelength detectors for image sensing and optical communication.YOU WU ZHIWEN LI KAH-WEE ANG YUPING JIA ZHIMING SHI ZHI HUANG WENJIE YU XIAOJUAN SUN XINKE LIU DABING LI 2019Photonics Research2019,7,10:4
14General analytical mass transfer model for VOC emissions from multi-layer dry building materials with internal chemical reactions显示文摘A general mass transfer based model was developed for analyzing volatile organic compound (VOC) emissions from dry multi-layer building materials with two emission surfaces.This model adds to an earlier multi-layer model by considering chemical reactions within the materials.Consequently,it can be used to analyze the effect of these chemical reactions on removing VOCs,and for characterizing secondary VOC emissions from the building material.The model was validated with literature data and our experimental results.Some typical secondary emissions were analyzed using this model,and obviously differed from the primary emissions.The model is a useful tool for predicting,analyzing and 'designing' the VOC emission characteristics,including secondary emissions,of building materials.WANG XinKe ZHANG YinPing 2011Chinese Science Bulletin2011,56,2:4
15Polarization multiplexing for double images display显示文摘Metasurface provides subwavelength structures for manipulating wavefronts of light. The benefits of subwavelength components offer a continuous modulation of amplitude, phase, and polarization, thus eliminating the production of higher-order images and improving the utilization of light intensity. Despite the rapid progress in this field, multiparameter control of light using single layer metasurface is rarely reported. In fact, multiparameter control of light helps to improve information storage capacity and image fidelity. With simultaneous manipulation of polarization and amplitude at each pixel, it is possible to encode two separate images into one metasurface and reconstruct them under proper conditions. In a proof of concept experiment, we demonstrate an independent display of two binary images at the same position with polarization de-multiplexing from a single metasurface. This unique technology of encoding two images through amplitude and polarization manipulation provides a new opportunity for various applications in, such as encryption, information storage, polarization holograms, optical communications and fundamental physics.Jinying Guo Teng Wang Baogang Quan Huan Zhao Changzhi Gu Junjie Li Xinke Wang Guohai Situ Yan Zhang 2019Opto-Electronic Advances2019,2,7:4
16Calcareous nannofossil bioevents and microtektite stratigraphy in the Western Philippine Sea during the Quaternary显示文摘Two sediment cores, MD06-3050 and MD06-3047, were analyzed to study the Quaternary calcareous nannofossil and microtektite records. We dated bioevents and the microtektite impact event by calibrating with oxygen isotope stratigraphy. Seven calcareous nannofossil bioevents were identified over the past 2.36 Ma including the last appearance of data for Discoaster brouweri, Calcidiscus macintyrei, large Gephyrocapsa and Pseudoemiliania lacunosa, the first appearance of data for large Gephyrocapsa and Emiliania huxleyi, and the abrupt increase in the abundance of Gephyrocapsa caribbeanica. In addition, we fortunately observed that Australasian microtektites were distributed in core MD06-3050 from 1340 to 1374 cm.SUN HanJie LI TieGang SUN RongTao YU XinKe CHANG FengMing TANG Zheng 2011Chinese Science Bulletin2011,56,25:3
173D macropore carbon-vacancy g-C_(3)N_(4) constructed using polymethylmethacrylate spheres for enhanced photocatalytic H_(2) evolution and CO_(2) reduction显示文摘Metal-free g-C_3N_4 is widely used in photocatalytic reactions owing to its suitable band structure.However, it has low specific surface area and insufficient absorbance for visible light, and its photoexcited carriers have high recombination rates. In this study, the 3 D macropore C-vacancy g-C_3N_4 was prepared through a facile one-step route. Polymethylmethacrylate is used as a template to increase the surface reaction sites of g-C_3N_4 and extend its visible-light range. Compared to unmodified g-C_3N_4, the H2 production and CO_2 reduction rates of the fabricated g-C_3N_4 significantly improved. The special pore structure significantly improved the light utilization efficiency of g-C_3N_4 and increased the number of surface-active sites. The introduction of C-vacancy extended the absorption band of visible-light and suppressed the carrier recombination. The newly developed synthesis strategy can improve solar energy conversion efficiency and potentially modifies g-C_3N_4.Xuewen Wang Qjuchan Li Lei Gan Xinfei Ji Fayun Chen Xinke Peng Rongbin Zhang 2021Journal of Energy Chemistry2021,30,2:3
18Construction of van der Waals substrates for largely mismatched heteroepitaxy systems using first principles显示文摘The high density of defects induced by large strains in largely mismatched heteroepitaxy systems, such as AlN and GaN, because of the large lattice and thermal mismatch between substrates and epilayers is the bottleneck problem. Graphene-assisted van der Waals(vdW) heteroepitaxy offers a new opportunity to resolve this problem. However, it suffers from the difficulty of nucleation. Here we theoretically assess the effects of five 2D materials for vdW heteroepitaxy of AlN and GaN, including graphene, hBN, MoS2, gC3N, and gC3N4, and provide physical insights using first-principle calculations. MoS2 and gC3N exhibit significant potential to overcome the shortcomings of graphene owing to their appropriate binding strengths and Al(or Ga)diffusion barriers. Moreover, the interface behavior between the epilayers and the substrates are carefully analyzed. Our findings are helpful not only for obtaining high-quality AlN and GaN films but also for developing new criterions to discover effective 2D materials for vdW heteroepitaxy.ZhiMing Shi XiaoJuan Sun YuPing Jia XinKe Liu ShanLi Zhang ZhanBin Qi DaBing Li 2019Science China(Physics,Mechanics & Astronomy)2019,62,12:3
19The functions and applications of A7R in anti-angiogenic therapy, imaging and drug delivery systems显示文摘Vascular endothelial growth factor receptor 2(VEGFR-2)and neuropilin-1(NRP-1)are two prominent antiangiogenic targets.They are highly expressed on vascular endothelial cells and some tumor cells.Therefore,targeting VEGFR-2 and NRP-1 may be a potential antiangiogenic and antitumor strategy.A7R,a peptide with sequence of Ala-Thr-Trp-Leu-Pro-Pro-Arg that was found by phage display of peptide libraries,can preferentially target VEGFR-2 and NRP-1 and destroy the binding between vascular endothelial growth factor 165(VEGF165)and VEGFR-2 or NRP-1.This peptide is a new potent inhibitor of tumor angiogenesis and a targeting ligand for cancer therapy.This review describes the discovery,function and mechanism of the action of A7R,and further introduces the applications of A7R in antitumor angiogenic treatments,tumor angiogenesis imaging and targeted drug delivery systems.In this review,strategies to deliver different drugs by A7R-modified liposomes and nanoparticles are highlighted.A7R,a new dual targeting ligand of VEGFR-2 and NRP-1,is expected to have efficient therapeutic or targeting roles in tumor drug delivery.Lu Lu Hongyuan Chen Dake Hao Xinke Zhang Fengshan Wang 2019Asian Journal of Pharmaceutical Sciences2019,14,6:3
20Highly efficient vectorial field manipulation using a transmitted tri-layer metasurface in the terahertz band显示文摘Polarization is a basic characteristic of electromagnetic waves that conveys much optical information owing to its many states.The polarization state is manipulated and controlled for optical information security,optical encryption,and optical communication.Metasurface devices provide a new way to manipulate wave-fronts of light.A single ultrathin metasurface device can generate and modulate several differently polarized light fields,and thus carries optical information in several different channels.Terahertz(THz)waves have become widely used as carrier waves for wireless communication.Compact and functional metasurface devices are in high demand for THz elements and systems.This paper proposes a tri-layer metallic THz metasurface for multi-channel polarization generation and phase modulation with a high efficiency of approximately 80%.An azimuthally polarized THz vectorial beam generator is realized and characterized for use as a THz polarization analyzer.The incident polarization angle can be observed graphically with high accuracy.Moreover,a vectorial hologram with eight channels for different linear polarization states is demonstrated experimentally.The information in different holograms can be hidden by choosing the polarization channel for detection.This work contributes to achieving multi-functional metasurface in the THz band and can benefit THz communication and optical information security.Huan Zhao Xinke Wang Shutian Liu Yan Zhang 2023Opto-Electronic Advances2023,6,2:2
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