zwitterion

英式音标：['tsvɪtəraɪən]

美式音标：['tsvɪtəˌaɪən]

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词义：

n.

两性离子；

英英释义

Zwitterion

In chemistry, a zwitterion ( ; from German zwitter "hybrid"and formerly called a dipolar ion) is a neutral molecule with a positive and a negative electrical charge, distinct from dipoles, at different locations within that molecule. Zwitterions are sometimes also called inner salts.

以上来源于:Wikipedia

用法：

权威例句

Is Arginine a Zwitterion in the Gas Phase?

Lithium Salts of Pyrroldinium Type Zwitterion and the Preparation Method of the Same

The glycine zwitterion does not exist in the gas phase: results from a detailed ab initio electronic structure study

Polymerization via Zwitterion. 10. Alternating Cooligomerization of 2-Methyl-2-oxazoline with Ethylenesulfonamide

Polymerization via Zwitterion. VIII. Alternating Cooligomerizations of N-Benzylideneaniline with Electrophilic Monomers

Polymerization via Zwitterion. 18. Alternating Cooligomerizations of Ethylenesulfonamide with Cyclic Phosphorus Compounds

On the Number of Water Molecules Necessary To Stabilize the Glycine Zwitterion

Extension of the fragment method to calculate amino acid zwitterion and side chain partition coefficients.

Monte Carlo simulation of water solvent with biomolecules: Serine and the corresponding zwitterion

Kinetics of interfacial catalysis by phospholipase A2 in intravesicle scooting mode, and heterofusion of anionic and zwitterionic ve...

造句：

1. Coefficient of dissociation of this kind of zwitterion is low, can affect its to organize penetration, but can raise its to be opposite mucous penetration.

这种两性离子离解系数低，可影响其组织穿透力，但可提高其对粘液的穿透力。

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2. The cysteine in the clay mineral existed in the forms of zwitterion and anion, the O and S in it chelated zinc cation to form configuration of hexatomic ring.

强相互作用吸附的半胱氨酸主要是以去质子的两性离子和阴离子形式存在于粘土矿物上，与过渡金属形成螯合的六元环结构。

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3. In this paper the chemical reaction of poly (vinyl pyridine) was studied and the polyelectrolytes CAPVP containing zwitterion structure units were synthesized.

以聚乙烯吡啶的化学反应制备了含正负离子对结构单元的两性聚合物CAPVP。

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4. The zwitterion terpolymers of the invention are made from the terpolymers by internal transfer of the proton of the carboxylic acid to the amino group of the acrylamide or acrylate monomer.

发明的两性离子共聚物是由从对羧酸质子内部转移到丙烯酰胺或丙烯酸单体氨基酸组的三元共聚物。

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5. The zwitterion terpolymers of the invention are made from the terpolymers by internal transfer of the proton of the carboxylic acid to the amino group of the acrylamide or acrylate monomer.

发明的两性离子共聚物是由从对羧酸质子内部转移到丙烯酰胺或丙烯酸单体氨基酸组的三元共聚物。

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6. Zwitterion An ion with both a positive and a negative charge.

两性离子：既带有正电荷又带有负电荷的离子。氨基酸就是这样一种离子：氨基基团为-NH3+而羧基端为-COO-。

-- 来源 -- 网友提供

7. At an intermediate pH value, an amino acid acts as a dipolar ion, or zwitterion, which has no net charge

在pH值适中的时候,氨基酸可作为偶极离子,或两性离子,它不带电。这个pH值叫等电点,它随着R基团的不同而不同。

-- 来源 -- 英汉 - 翻译参考[网络]