Results 91 to 100 of about 10,058 (253)

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source

Re-agglomeration of carbon nanotubes in two-part epoxy system; influence of the concentration [PDF]

, 2007
Carbon nanotubes, because of their exceptional mechanical properties, are one of the potential reinforcements for polymers in near future. Before substituting these nanocomposites in commercial applications, there are many problems, like dispersion ...
Inam, Fawad, Peijs, Ton
core  

Ligand Engineering for Precise Control of Ultrathin CsPbI3 Nanoplatelet Superlattices for Efficient Light‐Emitting Diodes

Advanced Materials, EarlyView.
In this work, we introduce ancillary‐ligand‐mediated growth control of ultrathin CsPbI3 PeNPLs to achieve highly uniform thickness and reduced agglomeration. Strong ancillary‐ligand coordination to the perovskite surface regulates nucleation and improves surface passivation, enabling color‐pure emission and preferentially oriented superlattices.
Jongbeom Kim, Woo Hyeon Jeong, Junzhi Ye, Allison Nicole Arber, Vikram, Donghan Kim, Yi‐Teng Huang, Yixin Wang, Dongeun Kim, Dongryeol Lee, Chia‐Yu Chang, Xinyu Shen, Sung Yong Bae, Ashish Gaurav, Ye In Kim, Jinkyu Yang, Boseung Je, Changsoon Cho, Akshay Rao, Henry J. Snaith, M. Saiful Islam, Bo Ram Lee, Myoung Hoon Song, Robert L. Z. Hoye   +23 more
wiley   +1 more source

The functional graphene/epoxy resin composites prepared by novel two-phase extraction towards enhancing mechanical properties and thermal stability

Frontiers in Chemistry
Epoxy resins, known for their excellent properties, are widely used thermosetting resins, but their tendency towards brittle fracture limits their applications.
Wenfeng Zhu, Qianxi Wang, Pengchao Zhang, Lei Li, Li Zhang, Houbu Li, Lekang Ding, Zunlong Jin, Peipei Li, Jiaoxia Zhang, Jiaoxia Zhang   +10 more
doaj   +1 more source

In-situ cure monitoring of epoxy resin systems [PDF]

, 1998
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis describes the work carried out at Brunel University to develop novel optical fibre sensors capable of monitoring the cure state of an epoxy ...
Powell, Graham
core  

Effect of block copolymer nano-reinforcements on the low velocity impact response of sandwich structures [PDF]

, 2014
Sandwich composites with fibre reinforced plastic (FRP) facesheets have emerged as a major class of lightweight structural materials in a wide range of engineering fields including aerospace, automotive and marine structures.
GUÉRARD, Sandra, RAMAKRISHNAN, Karthik Ram, VIOT, Philippe, SHANKAR, Krishna   +3 more
core   +1 more source

Material Before Morphology: Substrate‐Dependent Mechanical Tuning of Radular Teeth

Advanced Materials Interfaces, EarlyView.
Substrate‐dependent material tuning in Clausilia radular teeth. Closely related taxa retain a conserved gross tooth morphology, but differ in elemental composition and mechanical properties according to feeding substrate. Rock‐associated taxa show increased Ca–Si enrichment and higher stiffness and hardness, especially in the central radular region ...
Ida Lilienthal, Bernhard Hausdorf, Stanislav N. Gorb, Wencke Krings   +3 more
wiley   +1 more source

3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics

Advanced Materials Technologies, EarlyView.
A 3D‐printable porous dopamine‐polyurethane acrylate elastomer results in conductive, stretchable, and compressible structures that can be metallized in situ through catechol‐mediated silver reduction. The resulting material function as both compliant soft robot with a and strain sensors without complex assemblies, enabling fully 3D‐printed soft ...
Ouriel Bliah, Konstantin Sakharov, Pooi See Lee, Shlomo Magdassi   +3 more
wiley   +1 more source

Testing and Simulation of Multilayer Polyvinylidene Fluoride‐Based Piezoelectric Energy Harvester Devices

Advanced Materials Technologies, EarlyView.
The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin, Silvia Monchetti, Paolo Emilio Puddu, Luciano Teresi, Antonio DeSimone, Roberto Brighenti   +5 more
wiley   +1 more source

Strain rate and temperature effects on impact properties of toughened epoxy resins

Journal of Aeronautical Materials
To investigate the effects of strain rate，temperature and toughening modification on the impact properties of epoxy resin，uniaxial dynamic compression tests are performed on neat and toughened epoxy resins at −40，0，23 ℃ (room temperature) and 70 ℃ using ...
ZHANG Yilong, SHAO Mingzhe, LIU Longhao, LUAN Yihao, GUO Jianqiang   +4 more
doaj   +1 more source