Reply to Comment on Evaporation-Induced Patterns from Droplets Containing Motile and Nonmotile Bacteria

Nellimoottil, Tittu Thomas; Rao, Pinjala Nagaraju; Ghosh, Siddhartha Sankar; Chattopadhyay, Arun

doi:10.1021/la7026048

Cited by 2 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By simply controlling the buildup of atmospheric components on the surface, one can manipulate residue size and interior deposition. Nellimoottil et al [8] replied that both the motile and non-motile bacteria were from identical strains and therefore should have had equal stickiness, that bacteria swimming randomly should move down the bacterial concentration gradient, and there was no food for chemotaxis because the bacteria were washed twice in doubly distilled sterilized water. They reported that non-motile bacteria deposited preferentially at the residue edge relative to motile bacteria.…”

Section: Introductionmentioning

confidence: 99%

Evaporative Deposition of Bacteria from a Sessile Drop: Effects of Suspension Aging

Baughman¹,

Maier

Curry

2010

MRS Proc.

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%