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Recently Published Articles

  1. Large-Field-of-View Wide-Spectrum Artificial Reflecting Superposition Compound Eyes

    Chi-Chieh Huang, Xiudong Wu, Hewei Liu, Bader Aldalali, John A. Rogers and Hongrui Jiang

    Article first published online: 25 APR 2014 | DOI: 10.1002/smll.201400037

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    Artificial reflecting superposition compound eyes (RSCEs), inspired by the unique designs of their natural counterparts, possess superior optical features such as minimum chromatic aberration, wide-angle field of view (FOV), high acuity to motion and enhanced sensitivity to light unmatched by state-of-the-art refraction-based lenses. Our life-sized, wide-angle-FOV artificial RSCE can form high-quality images without any post-imaging processing in the wide visible light spectrum.

  2. Fly-Eye Inspired Superhydrophobic Anti-Fogging Inorganic Nanostructures

    Ziqi Sun, Ting Liao, Kesong Liu, Lei Jiang, Jung Ho Kim and Shi Xue Dou

    Article first published online: 22 APR 2014 | DOI: 10.1002/smll.201400516

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    Fly-eye bio-inspired inorganic nanostructures are synthesized via a two-step self-assembly approach, which have low contact angle hysteresis and excellent anti-fogging properties, and are promising candidates for anti-freezing/fogging materials to be applied in extreme and hazardous environments.

  3. Silicon Decorated Cone Shaped Carbon Nanotube Clusters for Lithium Ion Battery Anodes

    Wei Wang, Isaac Ruiz, Kazi Ahmed, Hamed Hosseini Bay, Aaron S. George, Johnny Wang, John Butler, Mihrimah Ozkan and Cengiz S. Ozkan

    Article first published online: 19 APR 2014 | DOI: 10.1002/smll.201400088

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    A three dimensional cone shaped CNT clusters (CCC) structure is prepared via chemical vapor deposition (CVD) with subsequent inductively coupled plasma (ICP) treatment. Silicon decorated cone shaped CNT clusters (SCCC) is prepared by depositing amorphous silicon onto CCC via magnetron sputtering. Lithium ion batteries (LIBs) based on 3D SCCC architecture demonstrates high reversible capacity and excellent cycling stability. The cone shaped nature of the SCCC architecture offers small interpenetrating channels for faster electrolyte access into the electrode which enhances the rate performance.

  4. Multifunctional Yolk-in-Shell Nanoparticles for pH-triggered Drug Release and Imaging

    Hongyu Chen, Bin Qi, Thomas Moore, Fenglin Wang, Daniel C. Colvin, Liurukara D. Sanjeewa, John C. Gore, Shiou-Jyh Hwu, O. Thompson Mefford, Frank Alexis and Jeffrey N. Anker

    Article first published online: 19 APR 2014 | DOI: 10.1002/smll.201303769

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    Multifunctional nanoparticles are synthesized for pH-triggered drug release and imaging with radioluminescence, upconversion luminescence, and magnetic resonance imaging (MRI). The particles have a yolk-in-shell morphology, with a radioluminescent core, an upconverting shell, and a hollow region between the core and shell for loading drugs. The nano­phosphors display bright luminescence under X-ray, blue light (480 nm), and near infrared light (980 nm).

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    Single-Molecule Reconstruction of Oligonucleotide Secondary Structure by Atomic Force Microscopy

    Alice Pyne, Ruth Thompson, Carl Leung, Debdulal Roy and Bart W. Hoogenboom

    Article first published online: 17 APR 2014 | DOI: 10.1002/smll.201400265

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    Based on soft-touch atomic force microscopy, a method is described to reconstruct the secondary structure of single extended biomolecules, without the need for crystallization. The method is tested by accurately reproducing the dimensions of the B-DNA crystal structure. Importantly, intramolecular variations in groove depth of the DNA double helix are resolved, which would be inaccessible for methods that rely on ensemble-averaging.