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Your search keyword '"Yao, Qiang"' showing total 36 results
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36 results on '"Yao, Qiang"'

5. Priestia sp. LWS1 Is a Selenium-Resistant Plant Growth-Promoting Bacterium That Can Enhance Plant Growth and Selenium Accumulation in Oryza sativa L.

Author

Xiao-Rui Lin, Han-Bing Chen, Yi-Xi Li, Zhi-Hua Zhou, Jia-Bing Li, Yao-Qiang Wang, Hong Zhang, Yong Zhang, Yong-He Han, and Shan-Shan Wang

Subjects
plant-growth-promoting bacteria, selenium, Oryza sativa, Priestia sp. LWS1, microbial biofortification, Agriculture
Abstract

Selenium (Se) is essential for the basic functions of life, but the low daily intake of Se urges us to find reliable ways to increase food Se content. Plant-growth-promoting bacteria (PGPB) have shown potential in enhancing plant growth and Se accumulation. In this study, the soils collected from a Se tailing were used to isolate Se-tolerant PGPB. The results showed that a total of three strains were identified. Strain LWS1, belonging to Priestia sp., grew well in M9 medium and exhibited typical PGP characteristics by an IAA-production ability of 24.3 ± 1.37 mg·L−1, siderophore-production ability of 0.23 ± 0.04 and phosphate-solubilizing ability of 87.5 ± 0.21 mg·L−1. Moreover, LWS1 strain tolerated selenite (SeIV) up to 90 mM by a LC50 of 270.4 mg·L–1. Further investigations demonstrated that the inoculation of strain LWS1 resulted in up to 19% higher biomass and 75% higher Se concentration in rice (Oryza sativa L.) than uninoculated treatments. Our study has provided evidence that microbial Se biofortification through inoculating with Priestia sp. strain LWS1 is an alternative way to improve Se uptake in crops and maintain human health.

Published
2022
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35. Wound Microenvironment Self-Adjusting Hydrogels with Thermo-Sensitivity for Promoting Diabetic Wound Healing.

Author

Li J, Guo J, Wang BX, Zhang Y, Yao Q, Cheng DH, and Lu YH

Abstract

The hard-healing chronic wounds of diabetics are still one of the most intractable problems in clinical skin injury repair. Wound microenvironments directly affect wound healing speed, but conventional dressings exhibit limited efficacy in regulating the wound microenvironment and facilitating healing. To address this serious issue, we designed a thermo-sensitive drug-controlled hydrogel with wound self-adjusting effects, consisting of a sodium alginate (SA), Antheraeapernyi silk gland protein (ASGP) and poly(N-isopropylacrylamide) (PNIPAM) for a self-adjusting microenvironment, resulting in an intelligent releasing drug which promotes skin regeneration. PNIPAM has a benign temperature-sensitive effect. The contraction, drugs and water molecules expulsion of hydrogel were generated upon surpassing lower critical solution temperatures, which made the hydrogel system have smart drug release properties. The addition of ASGP further improves the biocompatibility and endows the thermo-sensitive drug-controlled hydrogel with adhesion. Additionally, in vitro assays demonstrate that the thermo-sensitive drug-controlled hydrogels have good biocompatibility, including the ability to promote the adhesion and proliferation of human skin fibroblast cells. This work proposes an approach for smart drug-controlled hydrogels with a thermo response to promote wound healing by self-adjusting the wound microenvironment.

Published
2023
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36. Ti 3 C 2 T x as a Sensor for SF 6 /N 2 Nitrogen-Containing Fault Decomposition Characteristic Products: A Theoretical Study.

Author

Zeng F, Qiu H, Feng X, Chao X, Dai L, Yao Q, and Tang J

Abstract

The SF 6 /N 2 gas mixture is an alternative gas to SF 6 . SF 6 /N 2 will decompose and generate nitrogenous characteristic gases, such as NO, NO 2 , N 2 O, and NF 3 , when exposed to long-term partial discharge. The adsorption models of Ti 3 C 2 T x (T=O, F, OH) and NO, NO 2 , N 2 O, NF 3 were constructed, and the most stable adsorption structure was selected in this paper. The electron density and density of states of the adsorption system were further analyzed to study the adsorption behavior, and the sensing performance was evaluated in the end. The results are as follows: four gases could be spontaneously adsorbed on Ti 3 C 2 T x , and strong adsorption occurred when surface terminal groups were OH, forming hydrogen or chemical bonds with significant charge transfer. Results show that Ti 3 C 2 (OH) 2 had a stronger sensing ability than Ti 3 C 2 F 2 and Ti 3 C 2 O 2 . The conductivity of the Ti 3 C 2 T x with different terminal groups was improved after the adsorption of NO and NO 2 , showing Ti 3 C 2 T x had a good sensing ability for NO and NO 2 . It was difficult for the four gases to desorb from the Ti 3 C 2 (OH) 2 surface, but the adsorption on the Ti 3 C 2 F 2 , Ti 3 C 2 O 2 surface had a short recovery time at room temperature.

Published
2022
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