کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5370811 1503912 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cell membrane causes the lipid bilayers to behave as variable capacitors: A resonance with self-induction of helical proteins
ترجمه فارسی عنوان
غشای سلولی موجب می شود که دو لایه لیپید به عنوان خازن متغیر رفتار شود: رزونانس با خود القاء پروتئین های حلزونی
کلمات کلیدی
دو لایه لیپیدی، خازن های متغیر خازن های غشایی سلولی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی


- Cell membrane variable capacitor and self-induction of helical proteins
- The resonance of which is the main reason for biological pulses
- The quantum tunneling is allowed in some micro positions while it is forbidden in other forms.

Cell membrane has a unique feature of storing biological energies in a physiologically relevant environment. This study illustrates a capacitor model of biological cell membrane including DPPC structures. The electron density profile models, electron localization function (ELF) and local information entropy have been applied to study the interaction of proteins with lipid bilayers in the cell membrane. The quantum and coulomb blockade effects of different thicknesses in the membrane have also been specifically investigated. It has been exhibited the quantum effects can appear in a small region of the free space within the membrane thickness due to the number and type of phospholipid layers. In addition, from the viewpoint of quantum effects by Heisenberg rule, it is shown the quantum tunneling is allowed in some micro positions while it is forbidden in other forms of membrane capacitor systems. Due to the dynamical behavior of the cell membrane, its capacitance is not fixed which results a variable capacitor. In presence of the external fields through protein trance membrane or ions, charges exert forces that can influence the state of the cell membrane. This causes to appear the charge capacitive susceptibility that can resonate with self-induction of helical coils; the resonance of which is the main reason for various biological pulses.

“Free space between two layers in a dynamic situation”“it is suitable space for electron tunneling in a coulomb blockade effect”

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biophysical Chemistry - Volume 207, December 2015, Pages 114-127
نویسندگان
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