Gelatin-Graphene Nanocomposites with Ultralow Electrical Percolation Threshold

被引:66
作者
Nassira, Hoda [1 ,2 ]
Sanchez-Ferrer, Antoni [1 ]
Adamcik, Jozef [1 ]
Handschin, Stephan [1 ]
Mahdavi, Hossein [2 ]
Qazvini, Nader Taheri [2 ,3 ]
Mezzenga, Raffaele [1 ]
机构
[1] ETH, Dept Hlth Sci & Technol, Food & Soft Mat Sci, IFNH, Schmelzbergstr 9, CH-8092 Zurich, Switzerland
[2] Univ Tehran, Coll Sci, Sch Chem, Div Polymer, POB 14155-6455, Tehran, Iran
[3] Univ Chicago, Inst Mol Engn, Chicago, IL 60637 USA
关键词
CROSS-LINKED GELATIN; DRUG-DELIVERY; MECHANICAL-PROPERTIES; ASSISTED FABRICATION; SENSING PROPERTIES; WOUND DRESSINGS; COMPOSITES; HYDROGELS; OXIDE; CONDUCTIVITY;
D O I
10.1002/adma.201601115
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Gelatin-graphene conductive biopolymer nanocomposites (CPCs) with ultralow percolation threshold are designed by reducing in situ graphene oxide nanosheets with ascorbic acid and suppressing the aggregation of the graphene nanosheets. The resulting conductive nanocomposites show a record-low electrical percolation threshold of 3.3 x 10(-2) vol%, which arises from the homogeneous dispersion of the graphene nanosheets within the gelatin matrix.
引用
收藏
页码:6914 / +
页数:8
相关论文
共 56 条
[1]   Gelatin: The Paramount food additive [J].
Baziwane, D ;
He, QA .
FOOD REVIEWS INTERNATIONAL, 2003, 19 (04) :423-435
[2]  
Boran G., 2013, Gelatin: Production, Applications and Health Implications
[3]   Controlling Mechanical Properties of Cell-Laden Hydrogels by Covalent Incorporation of Graphene Oxide [J].
Cha, Chaenyung ;
Shin, Su Ryon ;
Gao, Xiguang ;
Annabi, Nasim ;
Dokmeci, Mehmet R. ;
Tang, Xiaowu ;
Khademhosseini, Ali .
SMALL, 2014, 10 (03) :514-523
[4]  
Childres I., 2013, DEV PHOTON MAT RES, V13, P978
[5]   Electrical applications of carbon materials [J].
Chung, DDL .
JOURNAL OF MATERIALS SCIENCE, 2004, 39 (08) :2645-2661
[6]   Electrospun Blends of Gelatin and Gelatin-Dendrimer Conjugates As a Wound-Dressing and Drug-Delivery Platform [J].
Dongargaonkar, Alpana A. ;
Bowlin, Gary L. ;
Yang, Hu .
BIOMACROMOLECULES, 2013, 14 (11) :4038-4045
[7]   Fabrication, Mechanical Properties, and Biocompatibility of Graphene-Reinforced Chitosan Composites [J].
Fan, Hailong ;
Wang, Lili ;
Zhao, Keke ;
Li, Nan ;
Shi, Zujin ;
Ge, Zigang ;
Jin, Zhaoxia .
BIOMACROMOLECULES, 2010, 11 (09) :2345-2351
[8]   A mechanically strong, flexible and conductive film based on bacterial cellulose/graphene nanocomposite [J].
Feng, Yiyu ;
Zhang, Xuequan ;
Shen, Yongtao ;
Yoshino, Katsumi ;
Feng, Wei .
CARBOHYDRATE POLYMERS, 2012, 87 (01) :644-649
[9]   Vitamin C Is an Ideal Substitute for Hydrazine in the Reduction of Graphene Oxide Suspensions [J].
Fernandez-Merino, M. J. ;
Guardia, L. ;
Paredes, J. I. ;
Villar-Rodil, S. ;
Solis-Fernandez, P. ;
Martinez-Alonso, A. ;
Tascon, J. M. D. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (14) :6426-6432
[10]   Raman spectrum of graphene and graphene layers [J].
Ferrari, A. C. ;
Meyer, J. C. ;
Scardaci, V. ;
Casiraghi, C. ;
Lazzeri, M. ;
Mauri, F. ;
Piscanec, S. ;
Jiang, D. ;
Novoselov, K. S. ;
Roth, S. ;
Geim, A. K. .
PHYSICAL REVIEW LETTERS, 2006, 97 (18)