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Lens, Crystalline: A transparent, biconvex structure of the Eye, enclosed in a capsule and situated behind the Iris and in front of the vitreous humor (Vitreous body). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the Ciliary body is crucial for Ocular accommodation.

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

1Jülich Centre for Neutron Science Outstation at MLZ, Forschungszentrum Jülich GmbH, 2Department of Chemistry, Louisiana State University, 3Jülich Centre for Neutron Science JCNS-1 & Institute of Complex Systems ICS-1, Forschungszentrum Jülich GmbH, 4Central Institute of Engineering, Electronics and Analytics — Electronic Systems (ZEA-2), Forschungszentrum Jülich GmbH, 5Central Institute of Engineering, Electronics and Analytics — Engineering and Technology (ZEA-1), Forschungszentrum Jülich GmbH

JoVE 54639


 Bioengineering

Characterization of Calcification Events Using Live Optical and Electron Microscopy Techniques in a Marine Tubeworm

1Department of Biological Sciences, Clemson University, 2Department of Marine Biodiversity Research (BioDive), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3Advanced Material Research Laboratory (AMRL), Clemson University, 4Swire Institute of Marine Sciences and School of Biological Sciences, The University of Hong Kong

JoVE 55164


 Biology

Physical Properties Of Minerals I: Crystals and Cleavage

JoVE 10007

Source: Laboratory of Alan Lester - University of Colorado Boulder

The physical properties of minerals comprise various measurable and discernible attributes, including color, streak, magnetic properties, hardness, crystal growth form, and crystal cleavage. Each of these properties are mineral-specific, and they are fundamentally related to a particular mineral’s chemical make-up and atomic structure. This experiment examines two properties that stem primarily from symmetric repetition of fundamental, structural atomic groupings, called unit cells, within a crystal lattice, a crystal growth form, and crystal cleavage. Crystal growth form is the macroscopic expression of atomic-level symmetry, generated by the natural growth process of adding unit cells (the molecular building blocks of minerals) to a growing crystal lattice. Zones of rapid unit-cell-addition become the edges between the planar surfaces, i.e. faces, of the crystal. It is important to recognize that rocks are aggregates of mineral grains. Most rocks are polymineralic (multiple kinds of mineral grains) but some are effectively monomineralic (composed of a single mineral). Because rocks are combinations of minerals, rocks are not referred to as having crystal form. In some cases, geologists refer to rocks as having a general cleavage, but here the term is simply used


 Earth Science

Scanning Light Scattering Profiler (SLPS) Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

1Office of Device Evaluation, Center for Devices and Radiological Health, U.S. Food and Drug Administration, 2Optical Therapeutics and Medical Nanophotonics Laboratory, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U.S. Food and Drug Administration

JoVE 55421


 Engineering

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light

1Institute for Complex Molecular Systems (ICMS), Technical University of Eindhoven, 2Department of Chemical Engineering and Chemistry, Laboratory of Macromolecular and Organic Chemistry, Technical University of Eindhoven, 3Department of Chemical Engineering and Chemistry, Laboratory for Functional Organic Materials and Devices (SFD), Technical University of Eindhoven

JoVE 56266


 Engineering

Characterization of Ultra-fine Grained and Nanocrystalline Materials Using Transmission Kikuchi Diffraction

1School of Civil Engineering, The University of Sydney, 2Australian Centre for Microscopy and Microanalysis, The University of Sydney, 3Department of Earth and Planetary Sciences, Macquarie University, 4Charles Delaunay Institute, LASMIS, UMR STMR CNRS 6281, University of Technology of Troyes

JoVE 55506


 Engineering

Experimental Multiscale Methodology for Predicting Material Fouling Resistance

1Department of Mechanical Engineering, Massachusetts Institute of Technology, 2Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, 3Department of Mechanical Engineering, University of Arkansas, 4Department of Materials Science and Engineering, Massachusetts Institute of Technology

Video Coming Soon

JoVE 52952


 JoVE In-Press

Experimental Approach for Determining Semiconductor/liquid Junction Energetics by Operando Ambient-Pressure X-ray Photoelectron Spectroscopy

1Division of Chemistry and Chemical Engineering, California Institute of Technology, 2Joint Center for Artificial Photosynthesis, California Institute of Technology, 3Advanced Light Source, Lawrence Berkeley National Laboratory, 4Beckman Institute, California Institute of Technology

Video Coming Soon

JoVE 54129


 JoVE In-Press

Aerosol-assisted Chemical Vapor Deposition of Metal Oxide Structures: Zinc Oxide Rods

1Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), 2SIX Research Centre, Brno University of Technology, 3Institute of Physics of Material, Academy of Science of Czech Republic, 4Institute of Physical Engineering and Central European Institute of Technology, Brno University of Technology

JoVE 56127


 Chemistry

Planar and Three-Dimensional Printing of Conductive Inks

1Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 2Center for Micro- and Nanotechnology, Lawrence Livermore National Laboratory, 3Presently at the Interdisciplinary Center for Wide Band-gap Semiconductors, University Of California Santa Barbara

JoVE 3189


 Bioengineering

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

1Materials Science Division, Argonne National Laboratory, 2Department of Physics, University of Illinois at Chicago, 3Department of Physics, CUNY Queens College, 4Center for Nanoscale Materials, Argonne National Laboratory, 5Department of Physics, University of Northern Iowa, 6Institute for Materials Science, University of Tsukuba

JoVE 53948


 Engineering

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