User recommended papers

User-recommended papers allows you to suggest a paper you would like to see on Nature China. When these papers appear on our site, users may comment and vote on them. To recommend a paper please use this form. Please note that you cannot recommend a paper you have authored. The editors will reject any self-recommendations. All comments and recommendation are checked by the editors and may be edited prior to publication on the site.

  • Materials

    • Climate change, land use change, and China’s food security in the twenty-first century: an integrated perspective


      • Original article citation: Climatic Change 93," 433 - 445, (2009).

      • Categories: Earth & Environment, Ecology & Evolution, and Materials
      • Recommended by : Jinwei Dong on 06/05/2009 11:50AM GMT

        Food security of China is always a principal problem for China even the whole world. And substantive studies have focused on the topic because of the challenges from loss of cropland, population growth, and water shortages. However, existed studies have generally failed to comprehensively consider future scenarios concluding climate change, land use, socioeconomic and technological scenarios. The paper provided an integrated perspective on China’s food demand and supply in future based on all the data from the aspects of land, population, climate and socioeconomic scenarios. The results provided effective and valuable conclusions for decision making of the government and future researches.
      • Comment on this subject: 2 comments made

    • Resonance capacity of surface plasmon on subwavelength metallic structures

      • Ying Gu, Liangliang Chen, Haixi Zhang, Qihuang Gong
        Original article citation: Europhys. Lett. 83," 27004 , (2008).

      • Categories: Physics and Materials
      • Recommended by : Limin Tong on 08/13/2008 02:50AM GMT

        Plasmonics — the coupling between the light and the collective oscillation of free electrons in metal — becomes one of the important branches in nanooptics due to its applications in nanodevices breaking through the diffraction limit. In this paper, Qihuang Gong and co-workers at Peking University in Beijing have provided a new method, Green’s matrix method, to directly design the surface plasmon resonances in irregular nanometer metals. By introducing the resonance capacity associated to the electric energy of a resonant nanostructure, the researchers can select those strong resonances with respect to the parameter dielectric permittivity. They used this resonance capacity to study the optical antenna and good agreement with previously reported experimental results is obtained. They also gave us an elegant way to understand the electrostatic limit. If the dimension of structure is largely below the wavelength, the resonance peaks become insensitive to the illumination wavelength. Starting from a given geometry, the proposed technique can give us the plasmon resonances information at some wavelength. Conversely, at a specific wavelength, it can also determine the geometry to which the real metal can access. So it is extremely useful to design the plasmonic structures with optical resonances in a specific spectral region.
      • Comment on this subject: 1 comment made

    • Tuning of Redox Properties of Iron and Iron Oxides via Encapsulation within Carbon Nanotubes

      • W. Chen, X. Pan, X. Bao
        Original article citation: J. Am. Chem. Soc. 129," 7421 - 7426, (2007).

      • Categories: Chemistry and Materials
      • Recommended by : Gemma Moxham on 12/06/2007 04:41PM GMT

        There is great interest in the use of carbon nanotubes as templates for synthesis of other nanomaterials or as nanosized reaction vessels. Many studies have shown the benefits of using CNTs as a support for metal catalysts on the outer surface but few efforts have been made to carry out reactions on metals encapsulated within the nanotubes. Little is therefore known about the effects of confining chemical reactions in such a way. This paper reports the encapsulation of iron and iron-oxide particles within CNTs and investigates the interaction of the nanoparticles with the CNTs by Raman spectroscopy. The effect of these interactions on the reduction and oxidation reactions of the particles is investigated.
      • Comment on this subject: 0 comments made

    • Reversible Surface Switching of Nanogel Triggered by External Stimuli

      • Xiaochen Shen, Leyang Zhang, Xiqun Jiang, Yong Hu, Jian Guo
        Original article citation: Angew. Chem. Int. Ed. 46," 7104 - 7107, (2007).

      • Categories: Chemistry and Materials
      • Recommended by : Gemma Moxham on 11/21/2007 11:38AM GMT

        Many organisms are able to change the properties of their surface membrane proteins in response to a change in pH in order to overcome biological membrane barriers. It is highly desirable to mimic such behaviour synthetically for biomedical and pharmaceutical application, hence, a variety of stimuli-responsive polymeric systems have been developed. However, the alterations that occur on a change in pH usually involve a disassembly process result in a change in dimension. In this papar the preparation of a novel nanogel of two biocompatible components is described which has a fully reversible pH-dependent switch process. The particle integrity is maintained over the entire pH range and the nanogel structure better resembles the structures of most organisms than the usual block co-polymer assemblies.
      • Comment on this subject: 0 comments made

    • Nano-effects, quantum-like properties in electrospun nanofibers

      • J HE, Y WAN, L XU
        Original article citation: Chaos, Solitons & Fractals 33," 26 - 37, (2007).

      • Categories: Materials, Biotechnology, and Physics
      • Recommended by : Yong Liu on 11/15/2007 12:32AM GMT

        It is an excellent papers in nanoscience field. This research reveals that fascinating phenomena arise when the diameter of the electrospun nanofibers is less than 100 nm. The nano-effect has been demonstrated for unusual strength, high surface energy, surface reactivity, high thermal and electric conductivity. Dragline silk is made of many nano-fibers with diameter of about 20 nm, thus it can make full use of nano-effects. It is a challenge to developing technologies capable of preparing for nanofibers within 100 nm.
      • Comment on this subject: 0 comments made
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