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

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

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

Since its discovery, the asymmetric Fano resonance has been a characteristic feature of interacting quantum systems. The shape of this resonance is distinctively different from that of conventional symmetric resonance curves. Recently, the Fano resonance has been found in plasmonic nanoparticles, photonic crystals, and electromagnetic metamaterials. The steep dispersion of the Fano resonance profile promises applications in sensors, lasing, switching, and nonlinear and slow-light devices.

The Fano resonance in plasmonic nanostructures and metamaterials

Diamond-like carbon (DLC) films were prepared by pulsed laser deposition at various substrate temperatures. These films have been studied using ultraviolet (UV, 244 nm) and visible (514 nm) micro-Raman scattering. The Raman characteristics and structural changes in the films are found as a function of deposition temperature. The total sp3 fraction in the film remains almost constant at a temperature not greater than 200 °C and shows a sharp decrease at a temperature greater than 200 °C. In the visible Raman spectra, only vibrational modes of sp2-bonded carbon (G and D peaks) are observed. A wide peak, called the T peak, located at 1080–1260 cm-1, associated with the vibrational mode of sp3-bonded carbon, appears in the UV Raman spectra from DLC films deposited at temperatures from 25 to 200 °C. In the visible Raman spectra, the G-peak width and the intensity ratio I(D)/I(G) are sensitive to the structural changes induced by the change of the deposition temperature. In the UV Raman spectra, both G peak and T peak positions are sensitive to these structural changes.

Ultraviolet and visible Raman spectroscopy characterization of diamond-like carbon film growth by pulsed laser deposition

A novel hybrid approach to fabricate large-area well-ordered Ag/Au bimetallic nanodot arrays and its potential applications for biosensing is investigated. With the combination of laser interference lithography and the thermal annealing technique, Ag/Au bimetallic nanodots about ∼50 nm are formed inside periodic nanodisk arrays at a dimension of ∼530 nm on quartz substrates. Extinction spectra of the fabricated nanostructures show their localized surface plasmon resonance (LSPR) can be well controlled by Au concentration, which offers a means to flexibly tune the optical properties of the nanodot arrays. To study the sensitivity of the nanodot arrays, resonance wavelength changes per refractive index unit (RIU) are performed in different surrounding environments. This shows a 94% increase in peak shift per refractive index unit (nanometers/RIU) compared to the nanodot arrays formed only by thermal annealing. These results demonstrate a feasible approach to improve LSPR-based biosensor performance.

Tuning of localized surface plasmon resonance of well-ordered Ag/Au bimetallic nanodot arrays by laser interference lithography and thermal annealing.

This invention relates to a method and apparatus for cleaning solid surfaces like Si substrate, disk or magnetic head slider where contaminants, including organic contaminants, especially particles in the micron or sub-micron scale are effectively remove from the solid surfaces. The invention achieves this by generating a strong laser-induced liquid jet and shock wave near the solid surfaces immersed in liquid. The liquid is a solution of water and other solvents to help reduce adhesion force and enhance cleaning efficiency.

Method and apparatus for cleaning surfaces

Sub-micron surface patterning by laser irradiation through microlens arrays

Planar hybrid metamaterial with different split ring resonators (SRR) structure dimensions are fabricated on silicon substrates by femtosecond (fs) laser micro-lens array (MLA) lithography and lift-off process. The fabricated metamaterial structures consist of: (a) uniform metamaterial with 4 SRRs at same design and dimension as a unit cell and (b) hybrid metamaterial with 4 SRRs at same design but different dimensions as a unit cell. The electromagnetic field responses of these hybrid and single dimension metamaterial structures are characterized using a terahertz (THz) time-domain spectroscopy. Transmission spectra of these metamaterial show that a broader resonance peak is formed when 2 SRRs are close to each other. FDTD simulation proves that there is a strong mutual coupling between 2 SRRs besides a strong localized electric field at the split gap, which can enhance the electric field up to 364 times for tunable, broad band and high sensitivity THz sensing. Meanwhile, the strong coupling effect could lead to the formation of an additional resonance peak at ~0.2 THz in the THz spectra regime.

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Minghui Hong

Papers

Ultraviolet and visible Raman spectroscopy characterization of diamond-like carbon film growth by pulsed laser deposition

Tuning of localized surface plasmon resonance of well-ordered Ag/Au bimetallic nanodot arrays by laser interference lithography and thermal annealing.

Method and apparatus for cleaning surfaces

Sub-micron surface patterning by laser irradiation through microlens arrays

Hybrid metamaterial design and fabrication for terahertz resonance response enhancement.