Biomimetic Nanowire Coatings for Next Generation Adhesive Drug Delivery Systems

被引:139
作者
Fischer, Kathleen E. [1 ,2 ,3 ]
Aleman, Benjamin J. [4 ,5 ,6 ]
Tao, Sarah L. [7 ]
Daniels, R. Hugh [8 ]
Li, Esther M. [8 ]
Buenger, Mark D. [1 ,2 ]
Nagaraj, Ganesh [1 ,2 ]
Singh, Parminder [1 ,2 ]
Zettl, Alex [4 ,5 ,6 ]
Desai, Tejal A. [1 ,2 ,3 ]
机构
[1] Univ Calif San Francisco, Dept Bioengn & Therapeut Sci, San Francisco, CA 94158 USA
[2] Univ Calif San Francisco, Dept Physiol, San Francisco, CA 94158 USA
[3] UCSF UCB Joint Grad Grp Bioengn, San Francisco, CA 94158 USA
[4] Math Sci Div LBNL, Berkeley, CA 94720 USA
[5] Ctr Integrated Nanomech Syst COINS, Berkeley, CA 94720 USA
[6] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[7] Charles Stark Draper Lab Inc, Cambridge, MA 02139 USA
[8] Nanosys Inc, Palo Alto, CA 94304 USA
基金
美国国家卫生研究院; 美国国家科学基金会;
关键词
ATOMIC-FORCE MICROSCOPE; SPRING CONSTANT; TOMATO LECTIN; GECKO; BIOADHESION; CANTILEVERS; CALIBRATION; NOISE; LESS;
D O I
10.1021/nl803219f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Without bioadhesive delivery devices, complex compounds are typically degraded or cleared from mucosal tissues by the mucous layer.(1-3) While some chemically modified, microstructured surfaces have been studied in aqueous environments 4,5 adhesion due to geometry alone has not been investigated. Silicon nanowire-coated beads show significantly better adhesion than those with targeting agents under shear, and can increase the lift-off force 100-fold. We have shown that nanowire coatings, paired with epithelial physiology, significantly increase adhesion in mucosal conditions.
引用
收藏
页码:716 / 720
页数:5
相关论文
共 54 条
[1]  
AINSLIE KM, 2008, J BIOMED MAT RES A, P35501
[2]  
Alberts B., 2002, Garland Science, V4th
[3]   Frictional adhesion: a new angle on gecko attachment [J].
Autumn, K. ;
Dittmore, A. ;
Santos, D. ;
Spenko, M. ;
Cutkosky, M. .
JOURNAL OF EXPERIMENTAL BIOLOGY, 2006, 209 (18) :3569-3579
[4]   Evidence for van der Waals adhesion in gecko setae [J].
Autumn, K ;
Sitti, M ;
Liang, YCA ;
Peattie, AM ;
Hansen, WR ;
Sponberg, S ;
Kenny, TW ;
Fearing, R ;
Israelachvili, JN ;
Full, RJ .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (19) :12252-12256
[5]   Adhesive force of a single gecko foot-hair [J].
Autumn, K ;
Liang, YA ;
Hsieh, ST ;
Zesch, W ;
Chan, WP ;
Kenny, TW ;
Fearing, R ;
Full, RJ .
NATURE, 2000, 405 (6787) :681-+
[6]   Lectin-mediated drug targeting: history and applications [J].
Bies, C ;
Lehr, CM ;
Woodley, JF .
ADVANCED DRUG DELIVERY REVIEWS, 2004, 56 (04) :425-435
[7]   CALCULATION OF THERMAL NOISE IN ATOMIC-FORCE MICROSCOPY [J].
BUTT, HJ ;
JASCHKE, M .
NANOTECHNOLOGY, 1995, 6 (01) :1-7
[8]  
CHENG H, 1995, ANAT REC, V207, P427
[9]   A NONDESTRUCTIVE METHOD FOR DETERMINING THE SPRING CONSTANT OF CANTILEVERS FOR SCANNING FORCE MICROSCOPY [J].
CLEVELAND, JP ;
MANNE, S ;
BOCEK, D ;
HANSMA, PK .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1993, 64 (02) :403-405
[10]   Diameter-controlled synthesis of single-crystal silicon nanowires [J].
Cui, Y ;
Lauhon, LJ ;
Gudiksen, MS ;
Wang, JF ;
Lieber, CM .
APPLIED PHYSICS LETTERS, 2001, 78 (15) :2214-2216