Evaporative deposition of bacteria from a sessile drop: Effects of suspension aging

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


In this work, we report on the evaporative deposition of bacteria from a drying aqueous drop on mica as a function of the bacterial suspension age. For sufficiently aged bacterial suspensions, residues are small and more filled-in than residues formed from fresh suspensions on similarly aged mica. In addition, the interior deposition pattern transitions from a cellular film characteristic of fresh suspensions to a cracked carpet pattern for aged suspensions. Suspension aging related changes in the residues are attributed to accumulation of organic materials such as DNA, RNA, proteins, and other bacterial components in the suspension. The aging process is also observed to be at least partially dependent on ventilation of the suspension during aging.

Original languageEnglish (US)
Title of host publicationEvaporative Self Assembly of Polymers, Nanoparticles, and DNA
PublisherMaterials Research Society
Number of pages6
ISBN (Print)9781617822261
StatePublished - 2010

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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