PMID- 26586273 OWN - NLM STAT- MEDLINE DCOM- 20161011 LR - 20181113 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 5 DP - 2015 Nov 20 TI - A Wireless Intracranial Brain Deformation Sensing System for Blast-Induced Traumatic Brain Injury. PG - 16959 LID - 10.1038/srep16959 [doi] LID - 16959 AB - Blast-induced traumatic brain injury (bTBI) has been linked to a multitude of delayed-onset neurodegenerative and neuropsychiatric disorders, but complete understanding of their pathogenesis remains elusive. To develop mechanistic relationships between bTBI and post-blast neurological sequelae, it is imperative to characterize the initiating traumatic mechanical events leading to eventual alterations of cell, tissue, and organ structure and function. This paper presents a wireless sensing system capable of monitoring the intracranial brain deformation in real-time during the event of a bTBI. The system consists of an implantable soft magnet and an external head-mounted magnetic sensor that is able to measure the field in three dimensions. The change in the relative position of the soft magnet WITH respect to the external sensor as the result of the blast wave induces changes in the magnetic field. The magnetic field data in turn is used to extract the temporal and spatial motion of the brain under the blast wave in real-time. The system has temporal and spatial resolutions of 5 mus and 10 mum. Following the characterization and validation of the sensor system, we measured brain deformations in a live rodent during a bTBI. FAU - Song, S AU - Song S AD - School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA. AD - Birck Nanotechnology Center, West Lafayette, IN, USA. FAU - Race, N S AU - Race NS AD - Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA. AD - School of Medicine, Indiana University, Indianapolis, IN, USA. FAU - Kim, A AU - Kim A AD - School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA. AD - Birck Nanotechnology Center, West Lafayette, IN, USA. FAU - Zhang, T AU - Zhang T AD - School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA. AD - Birck Nanotechnology Center, West Lafayette, IN, USA. FAU - Shi, R AU - Shi R AD - Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA. AD - Department of Basic Medical Sciences, Purdue University, West Lafayette, IN, USA. FAU - Ziaie, B AU - Ziaie B AD - School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA. AD - Birck Nanotechnology Center, West Lafayette, IN, USA. LA - eng GR - R21 NS090244/NS/NINDS NIH HHS/United States GR - 1 R21 NS090244-01/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20151120 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Ferric Compounds) RN - 0 (Silicone Elastomers) RN - 1K09F3G675 (ferric oxide) SB - IM MH - Animals MH - Biosensing Techniques/instrumentation/*methods MH - Blast Injuries/*complications MH - Brain Diseases/*diagnosis/physiopathology MH - Brain Injuries/*diagnosis/etiology/physiopathology MH - Ferric Compounds/chemistry MH - Humans MH - Magnetic Fields MH - Magnets/chemistry MH - Motion MH - Nanoparticles/chemistry MH - Rats MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Silicone Elastomers/chemistry MH - *Wireless Technology PMC - PMC4653713 EDAT- 2015/11/21 06:00 MHDA- 2016/10/12 06:00 PMCR- 2015/11/20 CRDT- 2015/11/21 06:00 PHST- 2015/05/28 00:00 [received] PHST- 2015/10/20 00:00 [accepted] PHST- 2015/11/21 06:00 [entrez] PHST- 2015/11/21 06:00 [pubmed] PHST- 2016/10/12 06:00 [medline] PHST- 2015/11/20 00:00 [pmc-release] AID - srep16959 [pii] AID - 10.1038/srep16959 [doi] PST - epublish SO - Sci Rep. 2015 Nov 20;5:16959. doi: 10.1038/srep16959.