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An Essay on Synthetic Chemistry of Colloidal Nanocrystals

Xiaogang Peng()

Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA

DOI 10.1007/s12274-009-9047-2

Nano Res(2009)2:425-447

Address correspondence to xpeng@uark.edu

Control of size and shape of colloidal nanocrystals is important, but there are some other equally important¡ªif not more important¡ªissues to be considered.

    

Highly Fluorescent Dye-Doped Silica Nanoparticles Increase Flow Cytometry Sensitivity for Cancer Cell Monitoring

M. -Carmen Est¨¦vez, Meghan B. O'Donoghue, Xiaolan Chen, and Weihong Tan()
Center for Research at the Bio/Nano Interface, Departments of Chemistry and Department of Physiology and Functional Genomics,
Shands Cancer Center and UF Genetics Institute, McKnight Brain Institute, University of Florida, Gainesville, Florida 32611-7200, USA

DOI 10.1007/s12274-009-9041-8

Nano Res (2009)2:448-461

Address correspondence to tan@chem.ufl .edu

Highly fl uorescent nanoparticles can increase the analytical sensitivity of flow cytometry for cancer cell monitoring.

    

Nanostructured 3-D Collagen/Nanotube Biocomposites for Future Bone Regeneration Scaffolds

Edelma E. da Silva1, Heloisa H. M. Della Colleta2, Andre S. Ferlauto1, Roberto L. Moreira1, Rodrigo R. Resende1, Sergio Oliveira1, Gregory T. Kitten2, Rodrigo G. Lacerda1() , and Luiz O. Ladeira1
 
1Universidade Federal de Minas Gerais, Departamento de F¨ªsica, Laborat¨®rio de Nanomateriais, Av. Antônio Carlos, 6627, 30123-970, Belo Horizonte, MG, Brazil
2Universidade Federal de Minas Gerais, Departamento de Morfologia, Av. Antônio Carlos, 6627, 30123-970, Belo Horizonte, MG, Brazil

DOI 10.1007/s12274-009-9042-7

Nano Res (2009)2:4620-473

Address correspondence to rlacerda@fi sica.ufmg.br

In this work we have presented a collagen-nanotube composite which has the potential to serve as a scaffold for tissue regeneration. The biofunctionality (shape maintenance) associated with this biocomposite and the observation that the composite induces mineralization of HA crystals in vitro opens a wide range of new possibilities concerning its use for the tissue engineering of bone.

    

Synthesis and Characterization of Bionanoparticle-Silica Composites and Mesoporous Silica with Large Pores

Zhongwei Niu1, Saswat Kabisatpathy1, Jinbo He2, L. Andrew Lee1, Jianhua Rong1, Lin Yang3, Godfrey Sikha4, Branko N. Popov4, Todd S. Emrick2, Thomas P. Russell2, and Qian Wang1()
1Department of Chemistry and Biochemistry and Nanocenter, University of South Carolina, Columbia, SC 29208, USA
2Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA 01003, USA
3Brookhaven National Laboratory, Upton, NY 11973, USA
4Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA

DOI 10.1007/s12274-009-9043-6

Nano Res (2009)2:474-483

Address correspondence to wang@mail.chem.sc.edu

A sol¨Cgel process allows bionanoparticles such as turnip yellow mosaic virus, cowpea mosaic virus, tobacco mosaic virus and ferritin to be incorporated into silica, while maintaining the integrity and morphology of the particles.

    

Ni1-xPtx (x-0 0.08) Films as the Photocathode of Dye-Sensitized Solar Cells with High Effi ciency

Shengjie Peng, Jifu Shi, Juan Pei, Yanliang Liang, Fangyi Cheng, Jing Liang, and Jun Chen()
Institute of New Energy Material Chemistry, Key Laboratory of Energy Material Chemistry, and Engineering Research Center of High-
Energy Storage and Conversion, Ministry of Education, Nankai University, Tianjin 300071, China

DOI 10.1007/s12274-009-9044-5

Nano Res (2009)2:484-492

Address correspondence to chenabc@nankai.edu.cn

Dye-sensitized solar cells (DSCs) based on a photocathode of Ni0.94Pt0.06 films that were prepared by reaction of chemically plated Ni films with H2PtCl6 solution have shown higher conversion effi ciencies than the DSC based on a pure Pt fi lm obtained by conventional thermal decomposition indicating that the as-prepared Ni0.94Pt0.06 films (with a low Pt loading of 5.13 ¦Ìg/cm2) is a promising photocathode material for commercial DSCs.

    

Self-Assembly of Luminescent Twisted Fibers Based on Achiral Quinacridone Derivatives

Yunfeng Zhao1, Yan Fan1, Xiaoyue Mu1, Hongze Gao1, Jia Wang1, Jingying Zhang1, Wensheng Yang1, Lifeng Chi2, and Yue Wang1()
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
2Physikalisches Institut and Center for Nanotechnology (CeNTech), Universität M¨¹nster, M¨¹nster 48149, Germany

DOI 10.1007/s12274-009-9045-4

Nano Res (2009)2:493-499

Address correspondence to yuewang@jlu.edu.cn

Luminescent twisted nano-/micro-structures based on achiral quinacridone derivatives have been prepared by a hierarchical selfassembly process. The luminescence of twisted fi bers displays thermal sensitive properties.

    

Proton-Resistant Quantum Dots: Stability in Gastrointestinal Fluids and Implications for Oral Delivery of Nanoparticle Agents

Aaron M. Mohs, Hongwei Duan, Brad A. Kairdolf, Andrew M. Smith, and Shuming Nie()
Departments of Biomedical Engineering and Chemistry, Emory University and Georgia Institute of Technology, 101
Woodruff Circle NE, Suite 2001, Atlanta, Georgia 30322, USA

DOI 10.1007/ s12274-009-9046-3

Nano Res(2009)2:500-508

Address correspondence to snie@emory.edu

Quantum dots with proton-resistant surface coatings show stable fl uorescence in strongly acidic simulated gastric (stomach) fl uids, opening new possibilities in quantum dot oral delivery applications.

    

Growth of Large-Area Single- and Bi-Layer Graphene by Controlled Carbon Precipitation on Polycrystalline Ni Surfaces

Alfonso Reina1, Stefan Thiele2, Xiaoting Jia1, Sreekar Bhaviripudi3, Mildred S. Dresselhaus3,4,  Juergen A. Schaefer2, and Jing Kong3()
1 Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
2 Institut f¨¹r Physik and Institut f¨¹r Mikro- und Nanotechnologien, Technische Universität Ilmenau, Ilmenau 98684, Germany
3 Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
4 Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

DOI 10.1007/s12274-009-9059-y

Nano Res (2009)2:509-516

Address correspondence to jingkong@mit.edu

Graphene fi lms consisting mostly of single and bilayer graphene are grown by ambient pressure CVD by controlled segregation of carbon on polycrystalline Ni films.

    

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