نتایج جستجو برای: biomimetic

تعداد نتایج: 8027  

2016
Ki Dong Park Xiumei Wang Jae Young Lee Kyung Min Park ShengMin Zhang Insup Noh

We introduce our active experts' communications and reviews (Part II) of 2015 Korea-China Joint Symposium on Biomimetic Medical Materials in Republic of Korea, which reflect their perspectives on current research trends of biomimetic medical materials for tissue regeneration in both Korea and China. The communications covered three topics of biomimetics, i.e., 1) hydrogel for therapeutics and e...

2003
Shoujue Wang

A new model of pattern recognition principles—Biomimetic Pattern Recognition, which is based on “matter cognition” instead of “matter classification”, has been proposed. As a important means realizing Biomimetic Pattern Recognition, the mathematical model and analyzing method of ANN get breakthrough: a novel all-purpose mathematical model has been advanced, which can simulate all kinds of neuro...

Journal: :cell journal 0
nima dehdilani karim shamsasenjan aliakbar movassaghpour parvin akbarzadehlaleh bahram amoughli tabrizi hamed parsa

background: three-dimensional (3d) biomimetic nanofiber scaffolds have widespread applications in biomedical tissue engineering. they provide a suitable environment for cellular adhesion, survival, proliferation and differentiation, guide new tissue formation and development, and are one of the outstanding goals of tissue engineering. electrospinning has recently emerged as a leading technique ...

2003
Wei Chung Wu Luca Schenato Robert J. Wood Ronald S. Fearing

Four prototypes of biomimetic sensors have been designed and implemented for flight control of a robotic flying insect. The ocelli use four photodiodes to detect changes in light intensity in the surrounding. The halteres use piezoactuated vibrating structures to sense body rotational velocities via the Coriolis forces. The optic flow sensors consist of linear arrays of elementary motion detect...

Journal: :Journal of the American Chemical Society 2012
Chao Li Longyang Dian Weidong Zhang Xiaoguang Lei

We report the first biomimetic syntheses of (-)-gochnatiolides A-C and (-)-ainsliadimer B based on our proposed biogenetic pathway. Our synthesis features one-pot cascade transformations including Saegusa oxidation, intermolecular Diels-Alder cycloaddition, and radical-mediated allylic oxidation, which allow for the rapid generation of (-)-gochnatiolides A-C in a collective manner. We also disc...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Mila Boncheva David H Gracias Heiko O Jacobs George M Whitesides

This paper introduces a biomimetic strategy for the fabrication of asymmetrical, three-dimensional electronic devices modeled on the folding of a chain of polypeptide structural motifs into a globular protein. Millimeter-size polyhedra-patterned with logic devices, wires, and solder dots-were connected in a linear string by using flexible wire. On self-assembly, the string folded spontaneously ...

2005
Thomas D. Jorgensen Charlotte C. F. Norlund

In this paper we explain the mechanical design of the robot herring that we have developed. The use of mechanical accumulators is a fundamental issue in the design of this robot. Two different types of mechanical accumulators are implemented and tested as a spine on the robot. We argue that using an Euler buckled spine, on a robot fish, will give more efficient robots and a naturally occurring ...

Journal: :Molecules 2014
Sueng Hwan Jo Jeong Sun Sohn

For underwater adhesives with biocompatible and more flexible bonds using biomimetic adhesive groups, DOPA-like adhesive molecules were modified with cyanoacrylates to obtain different repeating units and chain length copolymers. The goal of this work is to copy the mechanisms of underwater bonding to create synthetic water-borne underwater medical adhesives through blending of the modified DOP...

Journal: :Organic & biomolecular chemistry 2009
Jonathan Sperry Jimmy J P Sejberg Frank M Stiemke Margaret A Brimble

Studies towards the biomimetic synthesis of cardinalin 3 are described. Despite the successful enantioselective synthesis of the monomeric pyranonaphthoquinone ventiloquinone L, it subsequently failed to undergo a proposed biomimetic homodimerisation to cardinalin 3 using a range of oxidants. However, treatment of a related naphthopyran with cerium ammonium nitrate (CAN) facilitated a tandem bi...

2012
Hong-Bing Ji Xian-Tai Zhou

Cytochrome P-450 mono-oxygenase enzymes play a key role in the oxidative transformation in living systems. As one kind of cytochrome P-450 models, metalloporphyrins have been widely used in selective oxygenation of hydrocarbons under mild conditions. The chapter focuses on reviewing the biomimetic homogeneous oxidation of organic compounds catalyzed by metalloporphyrins with green oxidants such...

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