Results 51 to 60 of about 7,827 (274)

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Neural activity in a hippocampus-like region of the teleost pallium is associated with active sensing and navigation

eLife, 2019
Most vertebrates use active sensing strategies for perception, cognition and control of motor activity. These strategies include directed body/sensor movements or increases in discrete sensory sampling events. The weakly electric fish, Gymnotus sp., uses
Haleh Fotowat, Candice Lee, James Jaeyoon Jun, Len Maler   +3 more
doaj   +1 more source

Electric Organ Discharge and Electrosensory Reafference in Skates

The Biological Bulletin, 1994
Skates possess bilateral electric organs that produce intermittent, weak discharges of relatively long duration compared to the discharges of other weakly electric fish. They, like all elasmobranchs, also have an electrosensory system capable of detecting weak, low-frequency electric fields.
openaire   +4 more sources

Electric organ discharge diversity in the genus Gymnotus: anatomo-functional groups and electrogenic mechanisms

, 2013
Previous studies describe six factors accounting for interspecific diversity of electric organ discharge (EOD) waveforms in Gymnotus. At the cellular level, three factors determine the locally generated waveforms: (1) electrocyte geometry and channel ...
Rodríguez-Cattáneo, A., Cilleruelo, E., Caputi, A. A., Crampton, W. G. R., Aguilera, P.   +4 more
core   +1 more source

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

Advanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam, Seon Yeong Chae, Young Woo Kwon, Hye Jin Heo, Hye Rin Lee, Ji Hyeok Lee, Dong‐Wook Han, Yun Hak Kim, Suck Won Hong   +8 more
wiley   +1 more source

Rapid evolution of a voltage-gated sodium channel gene in a lineage of electric fish leads to a persistent sodium current.

PLoS Biology, 2018
Most weakly electric fish navigate and communicate by sensing electric signals generated by their muscle-derived electric organs. Adults of one lineage (Apteronotidae), which discharge their electric organs in excess of 1 kHz, instead have an electric ...
Ammon Thompson, Daniel T Infield, Adam R Smith, G Troy Smith, Christopher A Ahern, Harold H Zakon   +5 more
doaj   +1 more source

Status-Dependent Vasotocin Modulation of Dominance and Subordination in the Weakly Electric Fish Gymnotus omarorum

Frontiers in Behavioral Neuroscience, 2018
Dominant-subordinate status emerges from agonistic encounters. The weakly electric fish, Gymnotus omarorum, displays a clear-cut example of non-breeding territorial aggression.
Rossana Perrone, Ana C. Silva, Ana C. Silva   +2 more
doaj   +1 more source

Peak amplitude of the electromotive force for every regional component of the electric organ discharge in the three compared species (mean±standard error).

, 2013
Peak amplitude of the electromotive force for every regional component of the electric organ discharge in the three compared species (mean±standard error).
Ana Carolina Pereira (90124), Angel A. Caputi (90127), Alejo Rodríguez-Cattaneo (90123), William G. R. Crampton (90126), Pedro A. Aguilera (90125)   +4 more
core   +1 more source

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

Advanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim, Uijung Yong, Myungji Kim, Jaewook Kim, Yeonggwon Jo, In Kyong Shim, Song Cheol Kim, Jinah Jang   +7 more
wiley   +1 more source

Effects of Social Interaction on the Electric Organ Discharge in a Mormyrid Fish, Gnathonemus Petersii (Mormyridae, Teleostei)

, 2003
African weakly discharging electric fish (Mormyridae) use their self-generated electric signals and electroreceptive abilities for orientation and communication in the context of courtship and territorial interactions.
Terleph, Thomas A., Moller, Peter
core   +1 more source