نتایج جستجو برای: biomimetic

تعداد نتایج: 8027  

Journal: :Analytical and bioanalytical chemistry 2009
Claus Hélix Nielsen

Biological membranes constitute the set of membranes defining boundaries and organelles in living cells--the structural and functional building blocks of all known living organisms. The integrity of the cell depends on its ability to separate inside from outside and yet at the same time allow massive transport of matter in and out the cell. Nature has elegantly met this challenge by developing ...

Journal: :Pattern recognition letters 2014
Salvador Dura-Bernal George L. Chadderdon Samuel A. Neymotin Joseph T. Francis William W. Lytton

Brain-machine interfaces can greatly improve the performance of prosthetics. Utilizing biomimetic neuronal modeling in brain machine interfaces (BMI) offers the possibility of providing naturalistic motor-control algorithms for control of a robotic limb. This will allow finer control of a robot, while also giving us new tools to better understand the brain's use of electrical signals. However, ...

2017
Zarema I Gazitaeva Anna O Drobintseva Yongji Chung Victoria O Polyakova Igor M Kvetnoy

BACKGROUND Biomimetic peptides are synthetic compounds that are identical to amino acid sequence synthesized by an organism and can interact with growth factor receptors and provide antiaging clinical effects. PURPOSE The purpose of this study was to investigate the effects of biomimetic peptides on the repair processes in the dermis using a model of cell cultures and in vivo. PATIENTS AND ...

2009
Ugo Ripamonti

INTRODUCTION the induction of bone formation, the emergence of the skeleton, of the vertebrates and of Homo species * Different strategies for the induction of bone formation. Biological significance of redundancy and synergistic induction of bone formation. Biomimetism and biomimetic matrices self-assembling the induction of bone formation The concavity: the shape of life and the induction of ...

Journal: :The Biochemical journal 1996
N E Labrou E Eliopoulos Y D Clonis

Molecular modelling and kinetic inhibition studies, as well as KD determinations by both difference-spectra and enzyme-inactivation studies, were employed to assess the ability of purpose-designed chimaeric biomimetic dyes (BM dyes) to act as affinity ligands for bovine heart L-malate dehydrogenase (MDH). Each BM dye was composed of two enzyme-recognition moieties. The terminal biomimetic moiet...

2008
U Ripamonti P W Richter R W N Nilen L Renton

Long-term studies in the non-human primate Chacma baboon Papio ursinus were set to investigate the induction of bone formation by biphasic hydroxyapatite/p-tricalcium phosphate (HA/beta-TCP) biomimetic matrices. HA/beta-TCP biomimetic matrices in a pre-sinter ratio (wt%) of 40/60 and 20/80, respectively, were sintered and implanted in the rectus abdominis and in calvarial defects of four adult ...

2016
Zhenming Wang Li Dong Lu Han Kefeng Wang Xiong Lu Liming Fang Shuxin Qu Chun Wai Chan

Producing biomimetic extracellular matrix (ECM) is an effective approach to improve biocompatibility of medical devices. In this study, biomimetic ECM nanostructures are constructed through layer-by-layer self-assembling positively charged chitosan (Chi), negatively charged oxidized sodium alginate (OAlg), and positively charged bovine serum albumin (BSA)-based nanoparticles. The BSA-based nano...

Journal: :Nature nanotechnology 2011
Stefan W Kowalczyk Larisa Kapinos Timothy R Blosser Tomás Magalhães Pauline van Nies Roderick Y H Lim Cees Dekker

Nuclear pore complexes regulate the selective exchange of RNA and proteins across the nuclear envelope in eukaryotic cells. Biomimetic strategies offer new opportunities to investigate this remarkable transport phenomenon. Here, we show selective transport of proteins across individual biomimetic nuclear pore complexes at the single-molecule level. Each biomimetic complex is constructed by cova...

Journal: :Materials today 2013
Xianfeng Wang Bin Ding Bingyun Li

Biomimetic nanofibrous scaffolds mimicking important features of the native extracellular matrix provide a promising strategy to restore functions or achieve favorable responses for tissue regeneration. This review provides a brief overview of current state-of-the-art research designing and using biomimetic electrospun nanofibers as scaffolds for tissue engineering. It begins with a brief intro...

2007
Lisa M. Kindschy Evangelyn C. Alocilja

The technique of molecular imprinting produces artificial receptor sites in a polymer that can be used in a biomimetic sensor. This research extends previous studies of a molecularly imprinted polymer (MIP) biomimetic sensor for the small drug theophylline. The presence of theophylline in the biomimetic sensor was monitored by analyzing the peak currents from cyclic voltammetry experiments. The...

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