Formation mechanism of GaP nanorods under mild Benzene-thermal condition

Abstract

GaP nanorods with widths of 20—40nm and lengths of 200—500nm, and nanoparticles with diameters of 20—40nm were synthesized via the mild benzene-thermal route, using Na, P and GaCl3 as the starting materials. X-ray powder diffraction, Transmission electron microscopy and X-ray photoelectron spectroscopy were used to characterize the morphology and crystal structure of the products. The results indicated that when the reaction temperature is lower than 250℃, the products consist almost is GaP nanorods. The nanorods change into nanoparticles gradually with increasing temperature. When the reaction temperature exceed 280℃, the products are regularly particles. The reaction proceeds through a metallic gallium intermediate and a solution-liquid-solid mechanism is proposed for the one-dimensional growth.

Modulation of electroencephalograph activity by manual acupuncture stimulation in healthy subjects: An autoregressive spectral analysis

“…Now it has been widely introduced to investigate brain activities. [7,[10][11][12][13][14] By characterizing EEG signals, various effects of acupuncture stimulation have been proposed. Earlier experimental studies have shown that acupuncture stimulation can reduce gamma waves and increase alpha and theta waves in rabbits, [15] which are similar to those observed during sleep.…”

The modulation of brain functional connectivity with manual acupuncture in healthy subjects: An electroencephalograph case study

“…Recently, several researchers have proposed a new perspective to investigate the functional connectivity by characterizing EEG signals at the whole brain level using the graph theory. [11][12][13][14] It allows us to quantitatively characterize the global organization and investigate the topological reconfiguration of the whole brain in response to acupuncture stimulation. To the best of our knowledge, few studies have used this approach to investigate the functional connectivity in the entire brain modulated by acupuncture.…”

Analysis of a phase synchronized functional network based on the rhythm of brain activities

“…[9,10] Although the underlying mechanisms remain unclear, alpha desynchronization to visual input has been proposed to reflect long-range communication between cortical and thalamo-cortical areas, to facilitate visual perception or information processing. [11,12] Except alpha band, theta (4-7 Hz) and beta (14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) bands also show the reduction of power from EC to EO state. [7] Recently more studies focus on the functional con-nectivity among brain activities of different brain areas, which is assumed as a tentative index of functional interactions.…”