다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1（PfPMP1）与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员，通过启动转录不同的var基因变异体为抗原变异提供了分子基础。

疟原虫var基因转换速率变化导致抗原变异[英]／Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A

We report on solid-state mesoscopic heterojunction solar cells employing nanoparticles (NPs) of methyl ammonium lead iodide (CH3NH3)PbI3 as light harvesters. The perovskite NPs were produced by reaction of methylammonium iodide with PbI2 and deposited onto a submicron-thick mesoscopic TiO2 film, whose pores were infiltrated with the hole-conductor spiro-MeOTAD. Illumination with standard AM-1.5 sunlight generated large photocurrents (JSC) exceeding 17 mA/cm2, an open circuit photovoltage (VOC) of 0.888 V and a fill factor (FF) of 0.62 yielding a power conversion efficiency (PCE) of 9.7%, the highest reported to date for such cells. Femto second laser studies combined with photo-induced absorption measurements showed charge separation to proceed via hole injection from the excited (CH3NH3)PbI3 NPs into the spiro-MeOTAD followed by electron transfer to the mesoscopic TiO2 film. The use of a solid hole conductor dramatically improved the device stability compared to (CH3NH3)PbI3 -sensitized liquid junction cells.

/pdf/lead-iodide-perovskite-sensitized-all-solid-state-submicron-3ydqttohnr.pdf

Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9%

Chitin and chitosan: Properties and applications

Polydopamine and Its Derivative Materials: Synthesis and Promising Applications in Energy, Environmental, and Biomedical Fields

Perovskite single-crystal thin films (SCTFs) have emerged as a significant research hotspot in the field of optoelectronic devices owing to their low defect state density, long carrier diffusion length, and high environmental stability. However, the large-area and high-throughput preparation of perovskite SCTFs is limited by significant challenges in terms of reducing surface defects and manufacturing high-performance devices. This review focuses on the advances in the development of perovskite SCTFs with a large area, controlled thickness, and high quality. First, we provide an in-depth analysis of the mechanism and key factors that affect the nucleation and crystallization process and then classify the methods of preparing perovskite SCTFs. Second, the research progress on surface engineering for perovskite SCTFs is introduced. Third, we summarize the applications of perovskite SCTFs in photovoltaics, photodetectors, light-emitting devices, artificial synapse and field-effect transistor. Finally, the development opportunities and challenges in commercializing perovskite SCTFs are discussed. 

/pdf/perovskite-single-crystal-thin-films-preparation-surface-1chbjwgt.pdf

Perovskite single-crystal thin films: preparation, surface engineering, and application

The present invention relates to an organic semiconductor compound which has excellent charge transfer rate and low band gap while having a wide region of light absorption and a proper molecular level. The conductive organic semiconductor compound can be utilized as various materials for organic optoelectronic devices such as an organic photodetector (OPD), an organic light emitting diode (OLED), an organic thin-film transistor (OTFT), an organic solar cell, etc. Moreover, the conductive organic semiconductor compound can be formed as a thin film using a solution process. Thus, the conductive organic semiconductor compound is advantageous in manufacturing devices having a large area, and can reduce manufacturing costs of the devices.

Organinc semiconductor compound, manufacturing method therof and organic thin film transistor having them

Hydrogen-Embrittled Catalyst Surface During hydrogen evolution reaction, hydrogen diffuses into the catalyst grain boundaries either in atomic or molecular form and severely affects its mechanical properties causing catastrophic brittle failures (hydrogen embrittlement). The H-embrittled catalyst surface possesses good oxygen adsorption efficiency and when this highly strained electrode is employed for oxygen evolution reaction one can anticipate an enhanced catalytic activity, as reported in article number 2101209 by Pitchiah Esakki Karthik, Min Jae Ko, Sung Chul Yi, and co-workers. 

Enhanced Electrochemical Oxygen Evolution Reaction on Hydrogen Embrittled CoSe Surface (Adv. Mater. Interfaces 3/2022)

Artificial intelligence-assisted auto-optical inspection toward the stain detection of an organic light-emitting diode panel at the backplane fabrication step

Highly efficient dye-sensitized solar cells were prepared on plastic substrates by a synergistic approach and reached an efficiency of 8.6%, which optimized the light trapping and charge collection properties based on a theoretical modeling.

Min Jae Ko

Papers

Perovskite single-crystal thin films: preparation, surface engineering, and application

Organinc semiconductor compound, manufacturing method therof and organic thin film transistor having them

Enhanced Electrochemical Oxygen Evolution Reaction on Hydrogen Embrittled CoSe Surface (Adv. Mater. Interfaces 3/2022)

Artificial intelligence-assisted auto-optical inspection toward the stain detection of an organic light-emitting diode panel at the backplane fabrication step

Optimized light harvesting and charge collection properties of plastic dye-sensitized solar cells with theoretical modeling and synergistic approach