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Your search keyword '"Fu, Xiu-Yan"' showing total 29 results
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29 results on '"Fu, Xiu-Yan"'

28. Improved NO 2 Gas Sensing Properties of Graphene Oxide Reduced by Two-beam-laser Interference.

Author

Guo L, Hao YW, Li PL, Song JF, Yang RZ, Fu XY, Xie SY, Zhao J, and Zhang YL

Abstract

We report on the fabrication of a NO 2 gas sensor from room-temperature reduction of graphene oxide(GO) via two-beam-laser interference (TBLI). The method of TBLI gives the distribution of periodic dissociation energies for oxygen functional groups, which are capable to reduce the graphene oxide to hierarchical graphene nanostructures, which holds great promise for gaseous molecular adsorption. The fabricated reduced graphene oxide(RGO) sensor enhanced sensing response in NO 2 and accelerated response/recovery rates. It is seen that, for 20 ppm NO 2 , the response (R a /R g ) of the sensor based on RGO hierarchical nanostructures is 1.27, which is higher than that of GO (1.06) and thermal reduced RGO (1.04). The response time and recovery time of the sensor based on laser reduced RGO are 10 s and 7 s, which are much shorter than those of GO (34 s and 45 s), indicating that the sensing performances for NO 2 sensor at room temperature have been enhanced by introduction of nanostructures. This mask-free and large-area approach to the production of hierarchical graphene micro-nanostructures, could lead to the implementation of future graphene-based sensors.

Published
2018
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29. [Decreased mRNA expressions of T-type channel alpha1H and alpha1G in the sperm of varicocele patients and their implication].

Author

Wang SP, Wang PT, Gao F, Li Q, Liu ZQ, Fu XY, Li HQ, and Wang XS

Subjects
Adolescent, Adult, Calcium Channels, T-Type genetics, Case-Control Studies, Humans, Infertility, Male genetics, Male, RNA, Messenger genetics, Semen Analysis, Varicocele genetics, Young Adult, Calcium Channels, T-Type metabolism, Spermatozoa metabolism, Varicocele metabolism
Abstract

Objective: To study the relationship of varicocele (VC) with the expressions of T-type channel alpha1H and alpha1G in the sperm of VC patients., Methods: Based on the WHO criteria, we examined the semen samples by computer-aided sperm analysis (CASA), and divided the samples into groups A (normal semen from volunteers, n = 20), B (normal semen from VC patients, n = 16) and C (abnormal semen from VC patients, n = 44). We optimized the semen by discontinuous Percoll grade centrifugation, and determined the mRNA expressions of T-type channel alpha1H and alpha1G in the three groups using using reverse transcription polymerase chain reaction (RT-PCR)., Results: Compared with group A, the mRNA expressions of alpha1H and alpha1G showed with no significant decrease in group B (P>0.05), but were remarkably reduced in group C (P<0.01)., Conclusion: The abnormal mRNA expressions of T-type channel alpha1H and alpha1G may be one of the causes of declined semen quality and consequently infertility in VC patients, which has pointed out a new direction for the studies of the causes and treatment of VC-related infertility.

Published
2012

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