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Cover image for Vol. 9 Issue 9‐10

Editor-in-Chief: José Oliveira; Deputy Editor: Mary Farrell

Online ISSN: 1613-6829

Associated Title(s): Advanced Energy Materials, Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Advanced Materials

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Recently Published Articles

  1. Enhanced Photocatalytic Performances of CeO2/TiO2 Nanobelt Heterostructures

    Jian Tian, Yuanhua Sang, Zhenhuan Zhao, Weijia Zhou, Dongzhou Wang, Xueliang Kang, Hong Liu, Jiyang Wang, Shaowei Chen, Huaqiang Cai and Hui Huang

    Article first published online: 17 MAY 2013 | DOI: 10.1002/smll.201202346

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    The enhanced photocatalytic performance of CeO2/TiO2 heterostructured nanobelts is attributed to a novel capture–photodegradation–release degradation mechanism. During the photocatalytic process, MO molecules are captured by CeO2 nanoparticles on the surface of the heterostructure, then quickly photodegraded under UV or visible light irradiation, and ultimately the degradation products are released to external environment.

  2. Uptake Kinetics and Nanotoxicity of Silica Nanoparticles Are Cell Type Dependent

    Julia Blechinger, Alexander T. Bauer, Adriano A. Torrano, Christian Gorzelanny, Christoph Bräuchle and Stefan W. Schneider

    Article first published online: 17 MAY 2013 | DOI: 10.1002/smll.201301004

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    A set of experiments comparing the cytotoxicity and uptake behavior of silica nanoparticles into cells is presented. Human vascular endothelial cells (HUVEC) are more efficient in nanoparticle uptake than cervix carcinoma cells (HeLa), within the first 4 h of incubation. After 10 or 24 h, the mean number of intracellular particles for HeLa cells increases dramatically, becoming larger than the one for HUVECs. HUVECs show increased sensitivity towards silica nanoparticles when compared to HeLa cells. These results show nanotoxicity has to be assessed for each cell type individually.

  3. You have free access to this content
    Filling Knowledge Gaps that Distinguish the Safety Profiles of Nano versus Bulk Materials (pages 1426–1427)

    Yuliang Zhao, Andre Nel and Kristina Riehemann

    Article first published online: 16 MAY 2013 | DOI: 10.1002/smll.201300500

  4. Perforated Bicontinuous Cubic Phases with pH-Responsive Topological Channel Interconnectivity

    Alexandru Zabara, Renata Negrini, Ozana Onaca-Fischer and Raffaele Mezzenga

    Article first published online: 16 MAY 2013 | DOI: 10.1002/smll.201300348

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    The presence of OmpF membrane proteins at the bilayers of a bicontinuous cubic phase provides unique topological interconnectivities among the two distinct sets of water channels, enabling molecular active gating between them. This newly designed perforated cubic phase attains transport properties well beyond those of the standard mesophase, allowing faster, sustained release of bioactive target molecules.

  5. Exhaustion of Racing Sperm in Nature-Mimicking Microfluidic Channels During Sorting

    Savas Tasoglu, Hooman Safaee, Xiaohui Zhang, James L. Kingsley, Paolo N. Catalano, Umut Atakan Gurkan, Aida Nureddin, Emre Kayaalp, Raymond M. Anchan, Richard L. Maas, Erkan Tüzel and Utkan Demirci

    Article first published online: 16 MAY 2013 | DOI: 10.1002/smll.201300020

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    Fertilization is central to the survival and propagation of a species, however, the precise mechanisms that regulate the sperm's journey to the egg are not well understood. In nature, the sperm has to swim through the cervical mucus, akin to a microfluidic channel. Inspired by this, a simple, cost-effective microfluidic channel is designed on the same scale. The experimental results are supported by a computational model incorporating the exhaustion time of sperm.

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