Inventing atomic resolution scanning dielectric microscopy to see a single protein complex operation live at resonance in a neuron without touching or adulterating the cell

被引:13
作者
Agrawal, Lokesh [1 ]
Sahu, Satyajit [2 ]
Ghosh, Subrata [3 ]
Shiga, Takashi [4 ]
Fujita, Daisuke [1 ]
Bandyopadhyay, Anirban [1 ]
机构
[1] Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki, Japan
[2] IIT Jodhpur, Nano Bio Syst Sci, Jodhpur, Rajasthan, India
[3] CSIR, North East Inst Sci & Technol, Nat Prod Chem Div, Jorhat 785006, Assam, India
[4] Univ Tsukuba, Fac Med, Dept Neurobiol, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058577, Japan
关键词
Scanning non-linear dielectric microscopy (SNDM); resonance; protein; neuron; spectroscopy; microtubule; tubulin; SCALE; MICROTUBULE; FIELDS; TRANSMISSION; PERFORMANCE; TUBULIN; IMPULSE; DIODE;
D O I
10.1142/S0219635216500333
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
A substantial ion flow in a normally wet protein masks any other forms of signal transmission. We use hysteresis and linear conduction (both are artifacts) as a marker to precisely wet a protein, which restricts the ionic conduction (hysteresis disappears), and at the same time, it is not denatured (quantized conductance and Raman spectra are intact). Pure electric visualization of proteins at work by eliminating the screening of ions, electrons, would change the way we study biology. Here we discuss the technical challenges resolved for imaging a protein or live cell using nonlinear dielectric response (spatial distribution of conductance, capacitance and phase, GCP trio). We electromagnetically triggered electrical, mechanical, thermal and ionic resonant vibrations in a protein. During resonant oscillations, we imaged the protein using resonant scanning tunneling microscopy of biomaterials (Brestum) and during ionic firing we imaged live what happens inside an axon core of a neuron by using our atomic scale scanning dielectric microscopy (Asadim). Both Asadim and Brestum are housed in a homebuilt scanning tunneling microscope (bio-STM) and a special micro-grid developed by us (patent JP-5187804) for fractal supercomputing. We found the trick to turn a membrane transparent and see inside without making any physical contact. We image live that a protein molecule adopts a unique configuration for each resonance frequency, - thus far unknown to biology. "Membrane alone fires" is found to be wrong after a century, micro-neuro-filaments communicate prior to firing to decide its necessity and then regulate it suitably. We introduce a series of technologies e.g., fractal grid, point contact, micro THz antenna, to discover that from atomic structure to a living cell, the biomaterials vibrate collectively.
引用
收藏
页码:435 / 462
页数:28
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