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Related Concept Videos

Protein-protein Interfaces02:04

Protein-protein Interfaces

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
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Members Made of Elastoplastic Material01:19

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The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
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Bending of Members Made of Several Materials01:11

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In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
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Overview of Advanced Functional Groups02:22

Overview of Advanced Functional Groups

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Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
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Related Experiment Video

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Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
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Recent Advances in Materials, Devices, and Systems for Neural Interfaces.

Sang Min Won1, Enming Song2, Jianing Zhao3

  • 1Department of Electrical and Computer Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana Champaign, Urbana, IL, 61801, USA.

Advanced Materials (Deerfield Beach, Fla.)
|June 2, 2018
PubMed
Summary

Advanced neural interfaces are crucial for neuroscience and treating neurological disorders. Innovations in materials and device engineering are paving the way for high-density, long-lasting optical/electrical connections to the brain.

Keywords:
bioelectronicselectrodesneural interfacesneural recordingneural stimulation

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Materials Science

Background:

  • Intimate, long-lived optical/electrical interfaces are vital for neuroscience research.
  • Developing high-density interfaces for 3D neural populations in living subjects is a significant challenge.
  • Advanced biocompatible materials and engineered electrode/emitter structures are essential.

Purpose of the Study:

  • To review recent progress in neural interface technologies.
  • To highlight promising concepts, materials, devices, and systems for neural interfacing.
  • To discuss the future of scalable optical/electrical neural interfaces.

Main Methods:

  • Overview of electrode materials with enhanced electrical/mechanical properties (planar films, micro/nanostructured surfaces, 3D porous frameworks, soft composites).
  • Highlighting integration with active materials for multiplexed addressing, amplification, wireless data transmission, and power harvesting.
  • Discussion of multimodal operation in soft, shape-conformal systems.

Main Results:

  • Demonstrated advancements in electrode materials for improved performance.
  • Integration of active components enabling sophisticated functionalities.
  • Development of soft, shape-conformal systems for multimodal neural interfacing.

Conclusions:

  • Recent advances provide foundations for future scalable neural interface architectures.
  • The integration of biotic and abiotic systems will drive progress in neuroscience and human health.
  • Engineered materials and devices are key to overcoming challenges in high-density neural interfacing.