超极化及再极化都表明细胞内负电性的增强。
Hyperpolarization and repolarization both describe increased electronegativity within the cell.
但是，大多数此类化合物是呈负电性的，不能有效跨越细胞膜。
However, many classes of oligonucleotides are polyanions, so they cannot cross over cell membrane.
正电性荷电材料表面带有较强的正电荷，对负电性的细菌、病毒和细菌内毒素有较强的亲和作用。
Positivly charged material carries stronger positive charge on its surface and has a stronger affinity for bacterium, virus and bacterial endotoxin which cany negative charge.
实验结果表明，赖氨酸分子在电极表面组装形成的单层膜不很致密，对于呈负电性的活性探针离子具有静电排斥作用。
The experiment results indicated that there is a not very compact Lysine monolayer on the surface of glassy carbon electrode, which has an electrostatic repulsion to the negative REDOX probe.
纳米电子蚀刻素描可以通过施加负电压，对画好的线路进行选择性清除。 他们的成果刊登在去年出版的《科学》杂志上。
Not so with the nanoelectric Etch A Sketch, which can selectively erase the conducting lines it creates by applying negative voltage.
作者认为离子型造影剂的高渗性、负电荷和碘的化学毒性是促使冠状动脉狭窄进展的原因之一。
It is believed that the higher osmosis and the electronegative and chemical toxicities of iodine of the ionic contrast medium are responsible for the higher acceleration.
三种氨基酸修饰玻碳电极表面在中性溶液均呈现荷负电性，对于带负电荷的活性探针离子均具有静电排斥作用。
In neutral condition, three kinds of amino monolayer show electronegative, which has an electrostatic repulsion to the negative REDOX probe.
我们已经展示了人工放射现象的可能性，这种放射现象的特征是用以射线轰击用咄硼和镁中的正电子或负电子。
We have shown that it is possible to create a radioactivity characterized by the emission of positive or negative electrons in boron and magnesium by bombardment with alpha rays.
骨架呈负电性，具有可交换的阳离子，被广泛用作吸附剂、催化剂和催化剂载体，是一种具有优异择形选择性、热稳定性和湿热稳定性的新型催化材料。
SAPO is a novel class of catalytic materials which exhibit excellent shape selectivity, thermal stability and hydrothermal stability, which can catalyze hydrocarbon reactions.
骨架呈负电性，具有可交换的阳离子，被广泛用作吸附剂、催化剂和催化剂载体，是一种具有优异择形选择性、热稳定性和湿热稳定性的新型催化材料。
SAPO is a novel class of catalytic materials which exhibit excellent shape selectivity, thermal stability and hydrothermal stability, which can catalyze hydrocarbon reactions.
应用推荐