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84 results for “Biomimetic”
The self-cleaning properties of biomimetic surfaces to repel Escherichia coli and Listeria monocytogenes attachment, adhesion, and retention
<p>Surface hydrophobicity and roughness were determined for unmodified wax surfaces (control), biomimetic wax surfaces, and Gladioli leaves. The self-cleaning properties of the biomimetic and control surfaces were compared by measuring their propensity to repel <em>Escherichia coli</em> and <em>Listeria monocytogenes</em> attachment, adhesion, and retention in mono- and co-culture conditions.</p>
Figures - Vat photopolymerization of biomimetic bone scaffolds based on Mg, Sr, Zn-substituted hydroxyapatite: Effect of sintering temperature
<p>Figures of publication "<span>Vat photopolymerization of biomimetic bone scaffolds based on Mg, Sr, Zn-substituted hydroxyapatite: Effect of sintering temperature</span>".</p> <p><a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.ceramint.2024.05.038" target="_blank" rel="noreferrer noopener"><span><span>https://doi.org/10.1016/j.ceramint.2024.05.038</span></span></a></p>
Will Biomimetic Robots Be Able to Change a Hivemind to Guide Honeybees' Ecosystem Services? (dataset)
<p>Simulation data for different simulation runs from the publication "Will Biomimetic Robots Be Able to Change a Hivemind to Guide Honeybees’ Ecosystem Services?"<br> <br> Dataset for figure 4: The Model replicates Seeleys Choice Experiment (1991).<br> (Shown in the folder: 'Model_Validation_Choice_Empirical','Model_Validation_Choice_Model')<br> Aditionally the accumulated energy [J] (net gain) gathered threw the foraging targets is displayed.<br> <br> Dataset for figure 5: The Model replicates Seeleys Cross Inhibition Experiment (2009).<br> (Shown in the folder: 'Model_Validation_Equilib_Empirical','SModel_Validation_Equilib_Model')<br> Aditionally the accumulated energy [J] (net gain) gathered threw the foraging targets is displayed.<br> <br> Dataset for figure 6: Model data of Seeley's choice experiment (1991) under more natural conditions.<br> The effect of the single parameters and the effect of all parameters together is shown.<br> (Shown in the folder: 'Natural_Foraging_Forager_Size','Natural_Foraging_crop_Load',<br> 'Natural_Foraging_CFS','Natural_Foraging_All_Conditions',)<br> <br> Dataset for figure 7: Model data of Seeley's Cross Inhibition Experiment under more natural conditions.<br> The effect of the single parameters and the effect of all parameters together is shown.<br> (Shown in the folder: 'Natural_Foraging_Equilib_Forager_Size','Natural_Foraging_Equilib_crop_Load',<br> 'Natural_Foraging_Equilib_CFS','Natural_Foraging_Equilib_All_Conditions',)<br> <br> Dataset for figure 8: The influence of waggle dancing robots on the foraging behaviour of honeybees with two different qualities of the foraging targets A and B.<br> After 14400 second (12:00) a pesticide is sprayed on the foraging target B under natural conditions.<br> The waggle dancing robot starts advertising foraging target B when time > 14400 seconds.<br> (The folder shows: 'robo_influence_bad_vs_bad','robo_influence_good_vs_bad','robo_influence_good_vs_good',)</p> <p>Dataset for figure 9: The influence of 10 waggle dancing robots on the foraging behaviour of honeybees with two different qualities of the foraging targets A and B<br> and varrying colony fill status (CFS).<br> After 14400 second (12:00) a pesticide is sprayed on the foraging target B under natural conditions.<br> The 10 waggle dancing robots start advertising foraging target B when time > 14400 seconds. The CFS is varried (0.1, 0.3, 0.5, 0.7, 0.9).<br> (The folder shows: 'robo_influence_bad_vs_bad','robo_influence_good_vs_bad','robo_influence_good_vs_good',)<br> <br> Dataset for figure 10: The effects at the end of the waggle dancing robots on the accumulated energy (through the trips), accumulated pesticides (through trips on foraging target<br> B, where after time>14400 pesticide was sprayed on the foraging target), pollination flights to foraging target A.<br> After 14400 second (12:00) a pesticide is sprayed on the foraging target B under natural conditions.<br> The waggle dancing robot starts advertising foraging target A when time > 14400 seconds.<br> (The folder shows: 'robo_influence_acc_energy','robo_influence_acc_pesticide','robo_influence_pollination')<br> <br> The datasets are contained in the zipped file folder Figures_data.zip.</p>
Data from: Long-term, high frequency in situ measurements of intertidal mussel bed temperatures using biomimetic sensors
At a proximal level, the physiological impacts of global climate change on ectothermic organisms are manifest as changes in body temperatures. Especially for plants and animals exposed to direct solar radiation, body temperatures can be substantially different from air temperatures. We deployed biomimetic sensors that approximate the thermal characteristics of intertidal mussels at 71 sites worldwide, from 1998-present. Loggers recorded temperatures at 10–30 min intervals nearly continuously at multiple intertidal elevations. Comparisons against direct measurements of mussel tissue temperature indicated errors of ~2.0–2.5 °C, during daily fluctuations that often exceeded 15°–20 °C. Geographic patterns in thermal stress based on biomimetic logger measurements were generally far more complex than anticipated based only on 'habitat-level' measurements of air or sea surface temperature. This unique data set provides an opportunity to link physiological measurements with spatially- and temporally-explicit field observations of body temperature.
Characterization and effect of biomimetic surfaces based on the topography of a self-cleaning leaf on bacterial binding
<p>Four self-cleaning leaves (Tenderheart, Cauliflower, White cabbage, and Leek) and the corresponding biomimetic surfaces were analyzed for their properties (water contact angle, surface hydrophobicity and roughness). The antifouling behavior was assessed by bacterial attachment, adhesion, and retention assays.</p>
Data from: Energy harvesting in a flow-induced vibrating flapper with biomimetic gaits
<p>Energy harvesting from flow induced vibrations (FIV) in flexible bodies offer opportunities for power generation in biomimicking robotic devices and is an active area of research. The focus of this study is on investigating the underlying physics and qualitatively analysing the energy extraction scenarios in similar structural systems, comprising of a flexible piezoelectric flapper in a low Reynolds number flow regime. A high-fidelity three-way fully coupled fluid-structure-electric energy solver is developed in-house to study the energy harvesting capabilities of such a flapper, its hydrodynamic characteristics and the associated unsteady flow-field. The results indicate that the flapper deformation profiles at the most efficient harvesting regimes, resemble the propulsion gaits of natural swimmers. Investigations on the effects of a sinusoidal heaving actuation reveal no significant impact on the harvested power at the high yield (high power output) regime, identified under the passive condition showing biomimetic gait. This study provides mechanics based insights that is expected to be useful for bio-inspired designs of FIV based harvesters.</p>
Biomimetic robotic skin implemented with hydrogel-elastomer hybrids and tomographic imaging methods
<p>Human skin perceives physical stimuli applied to the body and mitigates the risk of physical interaction through its soft and resilient mechanical properties. Social robots would benefit from whole-body robotic skin (or tactile sensors) resembling human skin in realizing a safe, intuitive, and contact-rich interaction with humans. However, existing soft tactile sensors show several drawbacks (complex structure, poor scalability, and fragility), which limit their application in whole-body robotic skin. Here, we introduce biomimetic robotic skin based on hydrogel-elastomer hybrids and tomographic imaging. The developed skin consists of tough hydrogel and silicone elastomer forming a skin-inspired multilayer structure, achieving sufficient softness and resilience for protection. The sensor structure can also be easily repaired with adhesives even after severe damage (incision). For multimodal tactile sensation, electrodes and microphones are deployed in the sensor structure to measure local resistance changes and vibration due to touch. The ionic hydrogel layer is deformed due to an external force, and the resulting local conductivity changes are measured via electrodes. The microphones also detect the vibration generated from touch to determine the location and type of dynamic tactile stimuli. The measurement data are then converted into multimodal tactile information through tomographic imaging and deep neural networks. We further implement a sensorized cosmetic prosthesis, demonstrating that our design could be used to implement deformable or complex-shaped robotic skin.</p>
Spectroscopic data for the compounds and reactions published in "Vinyl-pyrazole as a biomimetic acetaldehyde surrogate"
<p>Here, the uploaded data are associated with the manuscript "Vinyl-pyrazole as a biomimetic acetaldehyde surrogate" published in Chem. Comm. under the following DOI: https://doi.org/10.1039/D4CC01305K</p> <p>The .dpt files represent IR spectra of the compounds published in the manuscript.</p> <p>The .scv files represent NMR spectra of the compounds published in the manuscript.</p> <p>HPLC-MS data is presented as .pdf files.</p> <p>The labeling of the compounds and reactions follows the one in the published manuscript.</p>
Spectroscopic data for the compounds and reactions published in "Nucleophiles Target the Tungsten Center Over Acetylene in Biomimetic Models"
<p>Here, the uploaded data are associated with the manuscript "Nucleophiles Target the Tungsten Center Over Acetylene in Biomimetic Models" published in Inorg. Chem. under the following https://doi.org/10.1021/acs.inorgchem.4c00286<br>The .dpt files represent IR spectra of the compounds published in the manuscript. Gas IR spectrum is reported as .scv file. The .scv files represent NMR spectra of the compounds and reactions published in the manuscript. Line Shape Analysis calculation is presented in the excel file.<br>The labeling of the compounds and reactions follows the one in the published manuscript.</p>
Fig. 1. Parts for biomimetic mesurements. A in Description of a new species of the genus Chrysolina (Coleoptera: Chrysomelidae) from Honshu, and notes on records of Chrysolina aeruginosa in Japan
Fig. 1. Parts for biomimetic mesurements. A – adult of Chrysolina; B – pronotum of species in dorsal view; C – head and pronotum in lateral view. Abbreviations:APW – pronotum width at anterior margin; EL – length of elytra, measured from top of humerus to apex of each elytron; EW – maximum width across elytra; HW – width of head including eyes; PEL – length of pronotum and elytron; PL – length of pronotum; PPW – width of posterior margin of pronotum.
Data from: Energy harvesting in a flow-induced vibrating flapper with biomimetic gaits
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Biomimetic robotic skin implemented with hydrogel-elastomer hybrids and tomographic imaging methods
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Data from: Long-term, high frequency in situ measurements of intertidal mussel bed temperatures using biomimetic sensors
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A biomimetic approach to shielding from ionizing radiation: the case of melanized fungi
<p>Experimental data and Jupyter notebooks supporting the article "A biomimetic approach to shielding from ionizing radiation: the case of melanized fungi".</p> <p>The repository folder:</p> <ul> <li><strong>experiments</strong> contains the recordings from the shielding experiments. The directory name is the date the data was recorded. The files are ASCII text at the native output of WinSPEC for Inspectors format (see <a href="https://www.gbs-elektronik.de/en/downloads/downloads-nuclear-measurements.php?lang=EN">supplier website</a> for more information).</li> <li><strong>geant_apps</strong> contains the Geant4 applications and output files from the simulations. Any application can be compiled and installed using cmake, similar to the Geant4 examples.</li> <li><strong>python</strong> contains the <a href="https://jupyter.org/">Jupyter notebooks</a> to produce the figures and the tables on the aforementioned article.</li> </ul> <p>To compile the Geant4 applications, an installation of <a href="https://geant4.web.cern.ch/">Geant4</a> is needed. The results in the repository were obtain using Geant4 10.5.</p>
Data set for manuscript 'A universal poroelastic mechanism for hydraulic signals in biomimetic and natural branches'
<p>The zip file contains all raw data associated with the manuscript 'A universal poroelastic mechanism for hydraulic signals in biomimetic and natural branches' with Python files used to process the data and plot the figures of the manuscript.</p>
Remotely controlled 3D-engineered scaffolds for biomimetic in vitro investigations on brain cell co-cultures
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Diffusion-relaxation MRI data from biomimetic phantoms
<p>Diffusion-relaxation MRI data and tools to estimate the inner fibre radius of biomimetic phantoms, as reported here:</p> <blockquote> <p><strong>Pore size estimation in axon-mimicking microfibers with diffusion-relaxation MRI</strong>. Erick J. Canales-Rodríguez, Marco Pizzolato, Feng-Lei Zhou, Muhamed Barakovic, Jean-Philippe Thiran, Derek K. Jones, Geoffrey J.M. Parker, Tim B. Dyrby. Magn Reson Med. 2024; 91: 2579-2596. doi: 10.1002/mrm.29991 <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/mrm.29991" rel="nofollow">https://onlinelibrary.wiley.com/doi/full/10.1002/mrm.29991</a></p> </blockquote> <p>Run the code to replicate the figures reported in the paper. We provide the raw diffusion-relaxation data (spherical mean signal) to facilitate future evaluations and developments.</p> <p> </p> <p> </p>
Supporting information and Figures of the article "Harnessing the Biomimetic Effect of Macromolecular Crowding in the Cell-Derived Model of Clubfoot Fibrosis"
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Stl. and nTopology program file of the scaffold used in publication "Vat photopolymerization of biomimetic bone scaffolds based on Mg, Sr, Zn-substituted hydroxyapatite: Effect of sintering temperature"
<p>Stl. nTopology program file of the scaffold used in <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.ceramint.2024.05.038" target="_blank" rel="noreferrer noopener">https://doi.org/10.1016/j.ceramint.2024.05.038</a></p>
Dataset for: Biomimetic models of fish gill rakers as lateral displacement arrays for particle separation
<p class="MsoNormal">Ram suspension-feeding fish such as herring use gill rakers to separate small food particles from large water volumes while swimming forward with an open mouth. Fish gill raker function was tested using 3D-printed conical models and computational fluid dynamics (CFD) simulations over a range of slot aspect ratios. (See CFD simulation output in Dryad dataset: case and data files for ANSYS Fluent 19.1 CFD simulations.)</p> <p class="MsoNormal">Our hypothesis predicting the exit of particles based on mass flow rates, dividing streamlines (i.e., stagnation streamlines) at the slots between gill rakers, and particle size was supported by the results of experiments with physical models in a recirculating flume. (See R code with embedded comments in Dryad dataset to test Hypotheses 1 and 2 for particle exit/trapping.)</p> <p class="MsoNormal">Particle movement in suspension-feeding fish gill raker models was consistent with the physical principles of lateral displacement arrays ("bump arrays") for microfluidic and mesofluidic separation of particles by size. Although particles were smaller than the slots between rakers, particles skipped over the vortical region that was generated downstream from each raker. Particles "bumped" on anterior raker surfaces during posterior transport. (See particle movement data in Dryad dataset: three files for particle contact, exit, and retention in the physical models.)</p> <p class="MsoNormal">Experiments in a recirculating flume demonstrated that the shortest distance between the dividing streamline and the raker surface preceding the slot predicts the maximum radius of a particle that will exit from the model by passing through the slot. This theoretical maximum radius is analogous to the critical separation radius identified with reference to the stagnation streamlines in microfluidic and mesofluidic devices that use deterministic lateral displacement and sieve-based lateral displacement. These conclusions provide new perspectives and metrics for analyzing crossflow and cross-step filtration in fish with applications to filtration engineering. </p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.