We report the first recorded capture of a blue-banded sea snake（Laticauda laticaudata Linnaeus, 1758, Jobeuntti Kun Badabam in Korean） in South Korea based on one male specimen collected from Marado-ri, Seogwiposi, ...We report the first recorded capture of a blue-banded sea snake（Laticauda laticaudata Linnaeus, 1758, Jobeuntti Kun Badabam in Korean） in South Korea based on one male specimen collected from Marado-ri, Seogwiposi, Jeju-do on 20 October 2016. The morphological features of the lateral nostrils, the much wider ventrals than adjacent dorsals, the horizontally undivided rostral, the two prefrontals, and the uniform black bands on the body indicate that the specimen is L. laticaudata. An analysis of the partial mitochondrial cytochrome b gene sequence indicated that the specimen fits well into the known L. laticaudata phylogenetic group, which confirms that the sea krait is L. laticaudata. Including this report, five species of sea snakes（L. laticaudata, L. semifasciata, Hydrophis platurus, H. cyanocinctus, and H. melanocephalus） have now been reported in Korean waters.展开更多
Recently,flexible pressure sensors have gained substantial research interest in bioelectronics because they can monitor the conditions of various organs,enable early diagnosis of diseases,and provide precise medical t...Recently,flexible pressure sensors have gained substantial research interest in bioelectronics because they can monitor the conditions of various organs,enable early diagnosis of diseases,and provide precise medical treatment by applying them to various parts of the body.In particular,inorganic materials,metal and carbon-based materials are broadly used in novel structured pressure sensors from wearable devices to implantable devices.With the excellent electronic properties,distinctive morphologies,and remarkable mechanical and chemical stability of these materials,it is expected that these flexible pressure sensors can be the basis for new methods for human healthcare.This article covers an extensive review of the inorganic,metal and carbon-based flexible pressure sensor design strategies and sensing mechanisms studied in recent years for diverse applications such as tactile sensors,arterial pulse sensors,intracranial pressure sensors,intraocular pressure sensors,and bladder pressure sensors.Each section provides an overview by introducing the recent progress in flexible pressure sensors.展开更多
Challenges in the understanding of three-dimensional(3D)brain networks by simultaneously recording both surface and intracortical areas of brain signals remain due to the difficulties of constructing mechanical design...Challenges in the understanding of three-dimensional(3D)brain networks by simultaneously recording both surface and intracortical areas of brain signals remain due to the difficulties of constructing mechanical design and spatial limitations of the implanted sites.Here,we present a foldable and flexible 3D neural prosthetic that facilitates the 3D mapping of complex neural circuits with high spatiotemporal dynamics from the intracortical to cortical region.This device is the tool to map the 3D neural transmission through sophisticatedly designed four flexible penetrating shanks and surface electrode arrays in one integrated system.We demonstrate the potential possibilities of identifying correlations of neural activities from the intracortical area to cortical regions through continuous monitoring of electrophysiological signals.We also exploited the structural properties of the device to record synchronized signals of single spikes evoked by unidirectional total whisker stimulation.This platform offers opportunities to clarify unpredictable 3D neural pathways and provides a next-generation neural interface.展开更多
基金supported by the Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(2014R1A1A4A01005302)
文摘We report the first recorded capture of a blue-banded sea snake（Laticauda laticaudata Linnaeus, 1758, Jobeuntti Kun Badabam in Korean） in South Korea based on one male specimen collected from Marado-ri, Seogwiposi, Jeju-do on 20 October 2016. The morphological features of the lateral nostrils, the much wider ventrals than adjacent dorsals, the horizontally undivided rostral, the two prefrontals, and the uniform black bands on the body indicate that the specimen is L. laticaudata. An analysis of the partial mitochondrial cytochrome b gene sequence indicated that the specimen fits well into the known L. laticaudata phylogenetic group, which confirms that the sea krait is L. laticaudata. Including this report, five species of sea snakes（L. laticaudata, L. semifasciata, Hydrophis platurus, H. cyanocinctus, and H. melanocephalus） have now been reported in Korean waters.
基金support received from the National Research Foundation of Korea(Nos.NRF-2018M3A7B4071109 and NRF-2019R1A2C2086085).
文摘Recently,flexible pressure sensors have gained substantial research interest in bioelectronics because they can monitor the conditions of various organs,enable early diagnosis of diseases,and provide precise medical treatment by applying them to various parts of the body.In particular,inorganic materials,metal and carbon-based materials are broadly used in novel structured pressure sensors from wearable devices to implantable devices.With the excellent electronic properties,distinctive morphologies,and remarkable mechanical and chemical stability of these materials,it is expected that these flexible pressure sensors can be the basis for new methods for human healthcare.This article covers an extensive review of the inorganic,metal and carbon-based flexible pressure sensor design strategies and sensing mechanisms studied in recent years for diverse applications such as tactile sensors,arterial pulse sensors,intracranial pressure sensors,intraocular pressure sensors,and bladder pressure sensors.Each section provides an overview by introducing the recent progress in flexible pressure sensors.
基金support received from the National Research Foundation of Korea (Grant Nos.NRF-2019R1A2C2086085,NRF-2021R1A4A1031437,and NRF2018M3A7B4071109)support provided by the National Institutes of Health (Award Nos.R21EB030140,U01DA056242,and R61HL154215).
文摘Challenges in the understanding of three-dimensional(3D)brain networks by simultaneously recording both surface and intracortical areas of brain signals remain due to the difficulties of constructing mechanical design and spatial limitations of the implanted sites.Here,we present a foldable and flexible 3D neural prosthetic that facilitates the 3D mapping of complex neural circuits with high spatiotemporal dynamics from the intracortical to cortical region.This device is the tool to map the 3D neural transmission through sophisticatedly designed four flexible penetrating shanks and surface electrode arrays in one integrated system.We demonstrate the potential possibilities of identifying correlations of neural activities from the intracortical area to cortical regions through continuous monitoring of electrophysiological signals.We also exploited the structural properties of the device to record synchronized signals of single spikes evoked by unidirectional total whisker stimulation.This platform offers opportunities to clarify unpredictable 3D neural pathways and provides a next-generation neural interface.
