Roughness Influence on Human Blood Drop Spreading and Splashing

Langmuir : the ACS Journal of Surfaces and Colloids
Fiona R SmithDavid Brutin

Abstract

Bloodstain pattern analysis (BPA) is used on a daily basis as evidence in crime scene reconstruction. However, though the impact behavior of complex fluid droplets have been extensively studied, important questions still remain. We investigate the influence of surface roughness and wettability on the splashing limit of droplets of blood, a non-Newtonian colloidal fluid. Droplets of blood perpendicularly impacting different surfaces at different velocities were recorded with a high-speed camera. The recordings were analyzed as well as the surfaces characteristics in order to find an empirical solution because we found that roughness plays a major role in the threshold of the splashing/nonsplashing behavior of blood compared to the wettability. Moreover, it appears that roughness alters the deformation of the drip stains. These observations are key to characterizing features of drip stains with the impacting conditions, yielding a more complete forensic analysis in certain cases.

References

May 21, 2005·Physical Review Letters·Lei XuSidney R Nagel
May 4, 2007·Journal of Pediatric Oncology Nursing : Official Journal of the Association of Pediatric Oncology Nurses·James P RiddelDavid P Lillicrap
Aug 7, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Lei Xu
May 28, 2006·Nanotechnology·S VafaeiP M Ajayan
Sep 26, 2012·Physical Review Letters·Andrzej LatkaSidney R Nagel
Apr 20, 2013·Forensic Science International : Synergy·N KabaliukE Williams
Jul 9, 2014·Science & Justice : Journal of the Forensic Science Society·H F MilesJ E Millington
Dec 2, 2014·Forensic Science International : Synergy·K De Wael, L Lepot
Mar 21, 2015·Advances in Colloid and Interface Science·Ilia V RoismanCameron Tropea

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Citations

Jan 15, 2020·Soft Matter·Meenakshi SharmaDileep Mampallil
Feb 26, 2020·Scientific Reports·Lama HamadehDavid J Fairhurst
Aug 22, 2018·The European Physical Journal. E, Soft Matter·Patrice BacchinMarie-Louise Saboungi
Feb 13, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Melike Begum Tanis-KanburFei Duan
May 1, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Arul Mozhi Devan PadmanathanSameer V Dalvi
Sep 2, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Lei YangPeng Zhang

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