منابع مشابه
Studies in Confined Biopolymers
In this work we analyze the theoretical aspects of a single polymer confined inside a cavity. The problem is of biological relevance since it is known, for instance, that molecules like proteins need an isolated environment in order to quickly and correctly reach their folded native state. The polymer is considered in the Grand Canonical ensemble of its monomeric units, where its average length...
متن کاملAveraging fuzzy biopolymers
Let d be a metric on the set FP(X) of fuzzy subsets of a finite set X. A midpoint of two fuzzy subsets μ, ν ∈ FP(X) is any fuzzy subset ξ ∈ FP(X) such that d(ξ, μ) = d(ξ, ν) = 1 2d(μ, ν). These midpoints can be used to represent “middle ways” or “compromises” between two situations described by the fuzzy subsets μ and ν. Now, the imprecise knowledge of a nucleic acid or protein sequence of leng...
متن کاملInteraction of Cartilage Biopolymers
Section on Tissue Biophysics and Biomimetics, NICHD, National Institutes of Health, 13 South Drive, Bethesda, MD 20892, USA E-mail: [email protected] Summary: Aggrecan is a charged biopolymer whose complexes with hyaluronic acid provide the compressive resistance of cartilage. In cartilage extracellular matrix aggrecan-hyaluronic acid complexes are enmeshed within a network of collagen fibr...
متن کاملConformations of confined biopolymers.
Nanoscale and microscale confinement of biopolymers naturally occurs in cells and has been recently achieved in artificial structures designed for nanotechnological applications. Here, we present an extensive theoretical investigation of the conformations and shape of a biopolymer with varying stiffness confined to a narrow channel. Combining scaling arguments, analytical calculations, and Mont...
متن کاملOptical Microrheology of Biopolymers
We use passive and active techniques to study microrheology of a biopolymer solution. The passive technique is video tracking of tracer particles in the biopolymer, a technique which is well established. The active technique is based on rotating optical tweezers, which is used to study viscosity. A method to actively measure viscoelascity using time varying rotation of a particle trapped in opt...
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ژورنال
عنوان ژورنال: Chinese Journal of Chemistry
سال: 2014
ISSN: 1001-604X
DOI: 10.1002/cjoc.201490002