A complete microfluidic screening platform for rational protein crystallization

被引:104
作者
Lau, Billy T. C. [1 ]
Baitz, Chris A. [1 ]
Dong, Xiao P. [1 ]
Hansen, Carl L. [1 ]
机构
[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
关键词
D O I
10.1021/ja065855b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We describe a complete microfluidic screening platform for protein crystallization that integrates fully programmable on-chip combinatorial mixing with dense assay storage using two-phase flows. This device supports rational crystallization strategies based on systematic solubility phase space mapping followed by nanoliter volume crystallization screening. Sequential formulation of arbitrary chemical mixtures and injection of nanoliter volume droplets into an immiscible carrier fluid creates a water/oil emulsion with independent control over droplet chemistry, size, frequency, and spacing. Long-term incubation of droplets with controlled dehydration is used to induce crystallization.
引用
收藏
页码:454 / 455
页数:2
相关论文
共 10 条
[1]   A microfluidic device for kinetic optimization of protein crystallization and in situ structure determination [J].
Hansen, CL ;
Classen, S ;
Berger, JM ;
Quake, SR .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (10) :3142-3143
[2]   A robust and scalable microfluidic metering method that allows protein crystal growth by free interface diffusion [J].
Hansen, CL ;
Skordalakes, E ;
Berger, JM ;
Quake, SR .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (26) :16531-16536
[3]   Systematic investigation of protein phase behavior with a microfluidic formulator [J].
Hansen, CL ;
Sommer, MOA ;
Quake, SR .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2004, 101 (40) :14431-14436
[4]   Controlling nonspecific protein adsorption in a plug-based microfluidic system by controlling interfacial chemistry using fluorous-phase surfactants [J].
Roach, LS ;
Song, H ;
Ismagilov, RF .
ANALYTICAL CHEMISTRY, 2005, 77 (03) :785-796
[5]   Millisecond kinetics on a microfluidic chip using nanoliters of reagents [J].
Song, H ;
Ismagilov, RF .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (47) :14613-14619
[6]   Interfacial tension driven monodispersed droplet formation from microfabricated channel array [J].
Sugiura, S ;
Nakajima, M ;
Iwamoto, S ;
Seki, M .
LANGMUIR, 2001, 17 (18) :5562-5566
[7]   Dynamic pattern formation in a vesicle-generating microfluidic device [J].
Thorsen, T ;
Roberts, RW ;
Arnold, FH ;
Quake, SR .
PHYSICAL REVIEW LETTERS, 2001, 86 (18) :4163-4166
[8]  
THOSEN T, 2002, SCIENCE, P298
[9]   Effects of viscosity on droplet formation and mixing in microfluidic channels [J].
Tice, JD ;
Lyon, AD ;
Ismagilov, RF .
ANALYTICA CHIMICA ACTA, 2004, 507 (01) :73-77
[10]   A droplet-based, composite PDMS/glass capillary microfluidic system for evaluating protein crystallization conditions by microbatch and vapor-diffusion methods with on-chip X-ray diffraction [J].
Zheng, B ;
Tice, JD ;
Roach, LS ;
Ismagilov, RF .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (19) :2508-2511