Publications by authors named "Lei-Ying Ying"
Article Synopsis
- Abscisic acid (ABA) plays a crucial role in helping plants deal with salt and drought stress, but how it works at the molecular level is still not fully understood.* -
- The study found that overexpressing a transcription factor called MdMYB44-like in apples and Arabidopsis enhances their tolerance to salt and drought by inhibiting MdPP2CA, a negative regulator of ABA responses.* -
- The research also shows that MdMYB44-like interacts with the ABA receptor MdPYL8 to form a complex that further suppresses MdPP2CA, highlighting a regulatory loop that fine-tunes ABA signaling during stress conditions.*
Room temperature low threshold lasing of green GaN-based vertical cavity surface emitting laser (VCSEL) was demonstrated under continuous wave (CW) operation. By using self-formed InGaN quantum dots (QDs) as the active region, the VCSEL emitting at 524.0 nm has a threshold current density of 51.
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- Researchers demonstrated dual-wavelength switchable emission in InGaN quantum dot micro-cavity light-emitting diodes (MCLEDs) that can toggle between outputs at 498.5 nm and 541.7 nm by adjusting the injected current levels.
- The microcavity effect allows for high spectral purity with a narrow linewidth of 0.21 nm, enabling deterministic mode switching in the green spectrum.
- The study highlights design and fabrication techniques for controlled dual-wavelength operation, which can be utilized in applications like multi-wavelength optical recording and optical switches.
III-nitrides based microdisks with the mushroom-type shape are key components for integrated nanophotonic circuits. The air gap undercut in the mushroom-type microdisk is essential for maintaining vertical optical confinement, but this structure is still facing the difficulty of electrical injection. In this work, we demonstrate an electrically injected GaN-based microdisk of such structure.
View Article and Find Full Text PDFSemiconductor vertical-cavity surface-emitting lasers (VCSELs) with wavelengths from 491.8 to 565.7 nm, covering most of the 'green gap', are demonstrated.
View Article and Find Full Text PDF[Influence of calcineurin on apoptosis of pre-B lymphocytes and the leukemia cells derived from pre-B lymphocytes].
Zhongguo Shi Yan Xue Ye Xue Za Zhi
October 2014
Article Synopsis
- This study compares calcineurin expression in mouse Pre-B cell lines (S9) and leukemia tumor cell lines (S4C2) to understand its role in cell apoptosis.
- Using techniques like quantitative PCR and Western blot, researchers found that S4C2 cells had significantly higher calcineurin levels, correlating with increased resistance to apoptosis.
- The findings suggest calcineurin contributes to preventing apoptosis in leukemia cells, and that cyclosporine A enhances apoptotic effects in these cells, especially when combined with the drug imatinib.
[Treatment of leukemia with immunized donor cell infusion after nonmyeloablative haploidentical bone marrow transplantation].
Zhongguo Shi Yan Xue Ye Xue Za Zhi
June 2013
This study was purposed to investigate the therapeutic effects of early transfusion of immunized donor lymphocytes after haploidentical transplantation by means of mouse model of nonmyeloablative haploidentical bone marrow transplantation. CB6F1 female mouse was served as recipient and C57BL/6 male mouse was served as donor. Each CB6F1 female mouse was subjected to intravenous transfusion with 1×10(6) erythroleukemia (EL9611) cells at day 4 before transplantation, followed with intraperitoneal injection of Ara-C (0.
View Article and Find Full Text PDFWell-width dependence of the emission linewidth in ZnO/MgZnO quantum wells.
Nanoscale Res Lett
October 2012
Photoluminescence (PL) spectra were measured as a function of well width (LW) and temperature in ZnO/Mg0.1Zn0.9O single quantum wells (QWs) with graded thickness.
View Article and Find Full Text PDFGaN-based light emitting diodes (LEDs) fabricated on sapphire substrates were successfully transferred onto silicon substrates using a double-transfer technique. Compared with the conventional LEDs on sapphire, the transferred LEDs showed a significant improvement in the light extraction and thermal dissipation, which should be mainly attributed to the removal of sapphire and the good thermal conductivity of silicon substrate. Benefited from the optimized wafer bonding process, the transfer processes had a negligible influence on electrical characteristics of the transferred LEDs.
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