Results 81 to 90 of about 17,869 (307)

Human iPSC‐Derived Tissue‐Engineered Nigrostriatal Pathway for Chronic Restoration of Dopaminergic Axon Tracts in a Rat Parkinson's Model

open access: yesAdvanced Healthcare Materials, EarlyView.
Inspired by conventional cell therapy and emerging bioengineering approaches, the tissue‐engineered nigrostriatal pathway (TE‐NSP) has an anatomically‐inspired design comprising a population of human dopaminergic neurons with unidirectional, long‐projecting axon tracts.
Wisberty J. Gordián‐Vélez   +8 more
wiley   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

open access: yesAdvanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj   +8 more
wiley   +1 more source

Iterative synthesis of monodisperse pendants for making comb-like polyurethanes

open access: yes, 2018
Polyurethanes grafted with well-defined polar pendants were synthesized and investigated. A series of linear and dendritic poly(urea/malonamide)s with uniform chain length were first prepared from an iterative synthesis route, which is based on a dual ...
Shenghong A. Dai   +8 more
core   +1 more source

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

open access: yesAdvanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz   +11 more
wiley   +1 more source

Contrasting nanoscale surface morphologies of polyurethanes containing polyoxetane soft blocks with random and block segmer sequences

open access: yes, 2004
The effect of shock block sequence distribution on surface morphology and wetting behavior was analyzed. It was observed that polyurethanes such as PU-1 were highly effective in modification of the surface of conventional polyurethanes.
Fujiwara, Tomoko, Wynne, Kenneth J.
core   +1 more source

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

open access: yesAdvanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Sintesis de poliuretanos a partir de polioles obtenidos a partir del aceite de higuerilla modificado por transesterificación con pentaeritritol Polyurethanes sintetized of polyols obtained from castor oil modified by transesterification with pentaerythritol</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Química Nova</i>, 2008 </span><br><span class="r_content">Castor oil was reacted by transesterification with various percentages in mass of pentaerythritol to obtain different esters of pentaerythritol. Alternatively, glycerol was also used instead of pentaerythritol for the same reaction in order to establish ...</span><br><span class="r_sub"><i>Manuel F. Valero<span id="ma_8" style="display:none">, Jorge E. Pulido, Álvaro Ramírez, Zhengdong Cheng</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_8')">+3 more</a></small></i></span><br><small><a href="https://doaj.org/article/cb845b3b31224c5f94e377eef3c8ac64" target="_blank" rel="nofollow" title="doaj.org/article/cb845b3b31224c5f94e377eef3c8ac64">doaj</a> </small>   <div id="more_8" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0100-40422008000800031" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0100-40422008000800031'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0100-40422008000800031)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_8')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1002/adma.74641" target="_blank" rel="nofollow">Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Advanced Materials, EarlyView.</i></span><br><span class="r_content">Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...</span><br><span class="r_sub"><i>Jordan Noronha<span id="ma_9" style="display:none">, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_9')">+7 more</a></small></i></span><br><small><a href="https://onlinelibrary.wiley.com/doi/10.1002/adma.74641?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default" target="_blank" rel="nofollow" title="wiley.com/doi/10.1002/adma.74641?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default">wiley</a> </small>   <div id="more_9" style="display:none"><a href="/sci_redir.php?doi=10.1002%2Fadma.74641" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1002/adma.74641'); alert('Copied the doi');">copy doi</a> <small>(10.1002/adma.74641)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_9')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1002/adma.75075" target="_blank" rel="nofollow">Selective Laser Sintering and Graphitization for Mono‐Matrix Unibody Fabrication of Integrated Stereo‐Circuit and Stereo‐Fluidic Wearable Electronics</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Advanced Materials, EarlyView.</i></span><br><span class="r_content">A novel selective laser sintering and graphitization (SLSG) 3D printing technology enables unibody fabrication of compacted insulating structures and conductive circuits in fluidic‐integrated wearable electronics through adaptive photonic modulation.</span><br><span class="r_sub"><i>Li Zhang, Wing Cheung Mak</i></span><br><small><a href="https://onlinelibrary.wiley.com/doi/10.1002/adma.75075?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default" target="_blank" rel="nofollow" title="wiley.com/doi/10.1002/adma.75075?mi=2or9o2m&af=R&AllField=polyurethanes&ConceptID=15941&content=articlesChapters&target=default">wiley</a> </small>   <div id="more_10" style="display:none"><a href="/sci_redir.php?doi=10.1002%2Fadma.75075" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1002/adma.75075'); alert('Copied the doi');">copy doi</a> <small>(10.1002/adma.75075)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_10')">+1 more source</a></small><br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-mechanical_properties/" class="suggestion"onclick="show_loader();"><b>mechanical properties</b></a><br/><a href="/q-polyurethane/" class="suggestion"onclick="show_loader();"><b>polyurethane</b></a><br/><a href="/q-environmental_sciences/" class="suggestion"onclick="show_loader();"><b>environmental sciences</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-degradation/" class="suggestion"onclick="show_loader();"><b>degradation</b></a><br/><a href="/q-thermal_properties/" class="suggestion"onclick="show_loader();"><b>thermal properties</b></a><br/></div></div></div><div class="pagenav"><a href="/q-polyurethanes/p-8/" rel="nofollow"><b>previous</b></a>   <a href="/q-polyurethanes/p-7/" rel="nofollow">7</a>  <a href="/q-polyurethanes/p-8/" rel="nofollow">8</a>  <b>9</b>  <a href="/q-polyurethanes/p-10/" rel="nofollow">10</a>  <a href="/q-polyurethanes/p-11/" rel="nofollow">11</a>   <a href="/q-polyurethanes/p-10/" id="next" rel="nofollow"><b>next</b></a> </div><br></div> </div> <script>document.getElementById('loadingGif').style.display='none';</script><div style="width: 100%; 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