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| 1 | Two-photon-excited near-infrared emissive carbon dotsas multifunctional agents for fluorescence imaging andphotothermal therapy显示文摘C dots (CDs) have shown great potential in bioimaging and phototherapy.However, it is challenging to manipulate their fluorescent properties andtherapeutic efficacy to satisfy the requirements for clinic applications. In thisstudy, we prepared S, Se-codoped CDs via a hydrothermal method anddemonstrated that the doping resulted in excitation wavelength-independentnear-infrared (NIR) emissions of the CDs, with peaks at 731 and 820 nm.Significantly, the CDs exhibited a photothermal conversion efficiency of -58.2%,which is the highest reported value for C nanostructures and is comparable tothat of Au nanostructures. Moreover, the CDs had a large two-photon absorptioncross section (-30,045 GM), which allowed NIR emissions and the photothermalconversion of the CDs through the two-photon excitation (TPE) mechanism. Invitro and in vivo tests suggested that CDs can function as new multi functionalphototheranostic agents for the TPE fluorescence imaging and photothermaltheraov of cancer cells. | Minhuan Lan Shaojing Zhao Zhenyu Zhang Li Yan Liang Guo Guangle Niu Jinfeng Zhang Junfang Zhao Hongyan Zhang Pengfei Wang Guangyu Zhu Chun-Sing Lee Wenjun Zhang | 2017 | Nano Research2017，10，9： | 9 |
| 2 | A Noncovalently Fused-Ring Asymmetric Electron Acceptor Enables Efficient Organic Solar Cells显示文摘Main observation and conclusion Recently,the asymmetric nonfullerene acceptors(NFAs)with acceptor-donor-acceptor(A-D-A)structure have been developed rapidly,especially for the modification of asymmetric core,asymmetric side chains and asymmetric end groups.In this work,a novel asymmetric A-D-π-A type NFA with a noncovalently fused-ring core named PIST-4F is synthesized,containing an indacenodithieno[3,2-b]dithiophene(IDT),two strong electron-withdrawing end groups and an alkylthio-substituted thiopheneπ-bridge.Benefiting from the S···S noncovalent interaction between the sulfur atom onπ-bridge and the adjacent thiophene in IDT,the PIST-4F presents nearly planar geometry and extended conjugated area,resulting in the optimized electronic properties,charge transport,and film morphology compared to the symmetric NFA PI-4F.As a result,PM6:PIST-4F-based devices achieve a higher power conversion efficiency(PCE)of 13.8%,while the PM6:PI-4F-based devices only show a PCE of 7.1%.Notably,the PM6:PIST-4F-based devices processed with nonhalogen solvent toluene exhibit an excellent PCE as high as 13.1%.These results indicate that PIST-4F is an effective acceptor for high-efficiency organic solar cells. | Ji Lin Qing Guo Qi Liu Junfang Lv Haiyan Liang Yang Wang Lei Zhu Feng Liu Xia Guo Maojie Zhang | 2021 | Chinese Journal of Chemistry2021，39，10： | 1 |
| 3 | Integrated Metabolite and Gene Expression Profiles Identify Lipid Biomarkers Associated With Progression of Hepatocellular Carcinoma and Patient Outcomes显示文摘 | Anuradha Budhu Stephanie Roessler Xuelian Zhao Zhipeng Yu Marshonna Forgues Junfang Ji Edward Karoly Lun–Xiu Qin Qing–Hai Ye Hu–Liang Jia Jia Fan Hui–Chuan Sun Zhao–You Tang Xin Wei Wang | 2013 | Gastroenterology2013，，5： | 1 |
| 4 | Microwave induced in-situ formation of SiC nano wires on SiCNO ceramic aerogels with excellent electromagnetic wave absorption performance显示文摘Electromagnetic absorption(EMA)materials with light weight and harsh environmental robustness are highly desired and crucially important in the stealth of high-speed vehicles.However,meeting these two requirements is always a great challenge,which excluded the most attractive lightweight candidates,such as carbon-based materials.In this study,SiC_(nw)-reinfbrced SiCNO(SiC_(nw)/SiCNO)composite aerogels were fabricated through the in-situ growth of SiC_(nw) in polymer-derived SiCNO ceramic aerogels by using catalyst-assisted microwave heating at ultra-low temperature and in short time.The phase composition,microstructure,and EMA property of the SiC_(nw)/SiCNO composite aerogels were systematically investigated.The results indicated that the morphology and phase composition of SiC_(nw)/SiCNO composite aerogels can be regulated easily by varying the microwave treatment temperature.The composite aerogels show excellent EMA property with minimum reflection loss of -23.9 dB@13.8 GHz,-26.5 dB@10.9 GHz,and -20.4 dB@14.5 GHz and the corresponding effective bandwidth of 5.2 GHz,3.2 GHz,and 4.8 GHz at 2.0 mm thickness for microwave treatment at 600℃,800℃,and 1000℃,respectively,which is much better than that of SiCN ceramic aerogels.The superior EMA performance is mainly attributed to the improved impedance matching,multireflection,multi-interfacial polarization,and micro current caused by migration of hopping electrons. | Keke YUAN Daoyang HAN Junfang LIANG Wanyu ZHAO Mingliang LI Biao ZHAO Wen LIU Hongxia LU Hailong WANG Hongliang XU Gang SHAO Rui ZHANG | 2021 | Journal of Advanced Ceramics2021，10，5： | 1 |
| 5 | Coastal wetland hyperspectral classification under the collaborative of subspace partition and infinite probabilistic latent graph ranking显示文摘The abundance of spectral information provided by hyperspectral imagery offers great benefits for many applications.However,processing such high-dimensional data volumes is a challenge because there may be redundant bands owing to the high interband correlation.This study aimed to reduce the possibility of“dimension disaster”in the classification of coastal wetlands using hyperspectral images with limited training samples.The study developed a hyperspectral classification algorithm for coastal wetlands using a combination of subspace partitioning and infinite probabilistic latent graph ranking in a random patch network(the SSP-IPLGR-RPnet model).The SSP-IPLGR-RPnet approach applied SSP techniques and an IPLGR algorithm to reduce the dimensions of hyperspectral data.The RPnet model overcame the problem of dimension disaster caused by the mismatch between the dimensionality of hyperspectral bands and the small number of training samples.The results showed that the proposed algorithm had a better classification performance and was more robust with limited training data compared with that of several other state-of-the-art methods.The overall accuracy was nearly 4%higher on average compared with that of multi-kernel SVM and RF algorithms.Compared with the EMAP algorithm,MSTV algorithm,ERF algorithm,ERW algorithm,RMKL algorithm and 3D-CNN algorithm,the SSP-IPLGR-RPnet algorithm provided a better classification performance in a shorter time. | HU YaBin REN GuangBo MA Yi YANG JunFang WANG JianBu AN JuBai LIANG Jian MA YuanQing SONG XiuKai | 2022 | Science China(Technological Sciences)2022，65，4： | 0 |
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