Direct photoacoustic measurement of silicon nanoparticle degradation promoted by a polymer coating

2021 ◽  
pp. 132860
Author(s):  
Ivan V. Zelepukin ◽  
Evgeny A. Mashkovich ◽  
Nikolay A. Lipey ◽  
Anton A. Popov ◽  
Victoria O. Shipunova ◽  
...  
2015 ◽  
Vol 4 (9) ◽  
pp. 974-978 ◽  
Author(s):  
Shan Wang ◽  
Haolong Li ◽  
Dan Li ◽  
Tianyang Xu ◽  
Shilin Zhang ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuuki Iida ◽  
Kumiko Hongo ◽  
Takanobu Onoda ◽  
Yusuke Kita ◽  
Yukio Ishihara ◽  
...  

AbstractCentral venous port (CVP) is a widely used totally implantable venous access device. Recognition of risks associated with CVP-related complications is clinically important for safe, reliable, and long-term intravenous access. We therefore investigated factors associated with CVP infection and evulsion, including the device type. A total of 308 consecutive patients with initial CVP implantation between January 2011 and December 2017 were retrospectively reviewed, and the association of clinical features with CVP-related complications were analyzed. Intraoperative and postoperative complications occurred in 11 (3.6%) and 39 (12.7%) patients, respectively. The overall rate of CVP availability at six months was 91.4%. Malignancy and 2-Methacryloyloxyethyl phosphorylcholine (MPC) polymer-coated catheter use were negatively associated with the incidence of CVP infections. Accordingly, malignancy and MPC polymer-coated catheter use were independent predictors for lower CVP evulsion rate (odds ratio, 0.23 and 0.18, respectively). Furthermore, both factors were significantly associated with longer CVP availability (hazard ratio, 0.24 and 0.27, respectively). This retrospective study identified factors associated with CVP-related complications and long-term CVP availability. Notably, MPC polymer-coated catheter use was significantly associated with a lower rate of CVP infection and longer CVP availability, suggesting the preventive effect of MPC coating on CVP infection.


Nano Letters ◽  
2021 ◽  
Author(s):  
Dongdong Wang ◽  
Hongxia Liu ◽  
Fang Liu ◽  
Guorong Ma ◽  
Jian Yang ◽  
...  

2021 ◽  
Author(s):  
XINGYUN Li ◽  
Bin Han ◽  
Yaojie Xu ◽  
Xiao Liu ◽  
Chunhui Zhao ◽  
...  

As an advanced two-dimensional (2D) material with unique properties, black phosphorus (BP) has attracted great attention in a variety of fields. One of the main obstacles for practical application of...


2021 ◽  
Vol 57 (27) ◽  
pp. 3391-3394
Author(s):  
Abdalrahman U. Alrayyes ◽  
Ze-Xian Low ◽  
Huanting Wang ◽  
Kei Saito

This communication reports the use of light to reversibly constrict or ease the flow of oxygen through a very thin polymer coating. This is achievable by reversibly changing the polymer structure from a dense and rigid film to a loose and soft film.


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