The smaller the better.  [electronic resource] 

 -  Nature methods  Jun 2008 
 - 457 p.  digital 
<br/><br/> Publication Type: Editorial; Introductory Journal Article 
<br/><br/><label>ISSN: </label>1548-7105 
<br/><br/><label>Standard No.: </label>10.1038/nmeth0608-457  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--instrumentation<br/>Biophysics--methods<br/>Microscopy, Atomic Force--methods<br/>Models, Biological<br/>Molecular Motor Proteins--metabolism<br/>Nanotechnology--methods<br/>Optical Tweezers