OBSERVATION OF INDIVIDUAL CHEMICAL REACTIONS IN SOLUTION

被引：93

作者：

COLLINSON, MM ^{[1
]}

WIGHTMAN, RM ^{[1
]}

机构：

[1] UNIV N CAROLINA, DEPT CHEM, CHAPEL HILL, NC 27599 USA

来源：

SCIENCE | 1995年 / 268卷 / 5219期

关键词：

D O I：

10.1126/science.268.5219.1883

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Discrete chemical reaction events occurring in solution have been observed by single photon detection of a bimolecular, chemiluminescent reaction. The reactants were generated from 9,10-diphenylanthracene in acetonitrile with potential pulses applied to an ultramicroelectrode. Electrogenerated radical ions of opposite sign react to yield the excited singlet state of the parent compound. The chemical reactions were restricted to a 20-femtoliter volume adjacent to the electrode by the use of rapid potential pulses. Individual chemical reaction events were stochastic and followed the Poisson distribution, and the interarrival time between successive reaction events was exponentially distributed.

引用

页码：1883 / 1885

页数：3

共 29 条

[21]

SCALES G, 1988, ATOMIC MOL BEAM METH, V1

[22] ANALYSIS OF FLUORESCENCE LIFETIME DATA FOR SINGLE RHODAMINE MOLECULES IN FLOWING SAMPLE STREAMS [J].

TELLINGHUISEN, J ;

GOODWIN, PM ;

AMBROSE, WP ;

MARTIN, JC ;

KELLER, RA .

ANALYTICAL CHEMISTRY, 1994, 66 (01) :64-72

[23] NEAR-FIELD SPECTROSCOPY OF SINGLE MOLECULES AT ROOM-TEMPERATURE [J].

TRAUTMAN, JK ;

MACKLIN, JJ ;

BRUS, LE ;

BETZIG, E .

NATURE, 1994, 369 (6475) :40-42

[24]

vanKampen N. G., 1981, STOCHASTIC PROCESSES

[25] ELECTROLUMINESCENCE IN SOLUTIONS OF AROMATIC HYDROCARBONS [J].

VISCO, RE ;

CHANDROSS, EA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1964, 86 (23) :5350-&

[26] ELECTROGENERATED CHEMI-LUMINESCENCE .35. TEMPERATURE-DEPENDENCE OF THE ECL EFFICIENCY OF RU(BPY)3 2+ IN ACETONITRILE AND EVIDENCE FOR VERY HIGH EXCITED-STATE YIELDS FROM ELECTRON-TRANSFER REACTIONS [J].

WALLACE, WL ;

BARD, AJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1979, 83 (10) :1350-1357

[27] VOLTAMMETRY WITH MICROSCOPIC ELECTRODES IN NEW DOMAINS [J].

WIGHTMAN, RM .

SCIENCE, 1988, 240 (4851) :415-420

[28] HIGH-SPEED CYCLIC VOLTAMMETRY [J].

WIGHTMAN, RM ;

WIPF, DO .

ACCOUNTS OF CHEMICAL RESEARCH, 1990, 23 (03) :64-70

[29] PROBING SINGLE-MOLECULE DYNAMICS [J].

XIE, XS ;

DUNN, RC .

SCIENCE, 1994, 265 (5170) :361-364

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