Femtogram-Scale Photothermal Spectroscopy of Explosive Molecules on Nanostrings

被引：14

作者：

Biswas, T. S. ^{[1
]}

Miriyala, N. ^{[2
]}

Doolin, C. ^{[1
]}

Liu, X. ^{[2
]}

Thundat, T. ^{[2
]}

Davis, J. P. ^{[1
]}

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2E9, Canada

[2] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2E1, Canada

来源：

ANALYTICAL CHEMISTRY | 2014年 / 86卷 / 22期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

NANOMECHANICAL MASS-SPECTROMETRY; QUANTUM CASCADE LASER; INFRARED-SPECTROSCOPY; RESONATORS; FREQUENCY; SAMPLES; ARRAYS;

D O I：

10.1021/ac503318e

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We demonstrate detection of femtogram-scale quantities of the explosive molecule 1,3,5-trinitroperhydro-1,3,5-triazine (RDX) via combined nanomechanical photothermal spectroscopy and mass desorption. Photothermal spectroscopy provides a spectroscopic fingerprint of the molecule, which is unavailable using mass adsorption/desorption alone. Our measurement, based on thermomechanical measurement of silicon nitride nanostrings, represents the highest mass resolution ever demonstrated via nanomechanical photothermal spectroscopy. This detection scheme is quick, label-free, and is compatible with parallelized molecular analysis of multicomponent targets.

引用

页码：11368 / 11372

页数：5

共 32 条

[1] Simultaneous electrical and optical readout of graphene-coated high Q silicon nitride resonators [J].

Adiga, V. P. ;

De Alba, R. ;

Storch, I. R. ;

Yu, P. A. ;

Ilic, B. ;

Barton, R. A. ;

Lee, S. ;

Hone, J. ;

McEuen, P. L. ;

Parpia, J. M. ;

Craighead, H. G. .

APPLIED PHYSICS LETTERS, 2013, 103 (14)

[2] Detection and differentiation of biological species using microcalorimetric spectroscopy [J].

Arakawa, ET ;

Lavrik, NV ;

Rajic, S ;

Datskos, PG .

ULTRAMICROSCOPY, 2003, 97 (1-4) :459-465

[3] PHOTOTHERMAL SPECTROSCOPY WITH FEMTOJOULE SENSITIVITY USING A MICROMECHANICAL DEVICE [J].

BARNES, JR ;

STEPHENSON, RJ ;

WELLAND, ME ;

GERBER, C ;

GIMZEWSKI, JK .

NATURE, 1994, 372 (6501) :79-81

[4] Remote Sensing in Hybridized Arrays of Nanostrings [J].

Biswas, T. S. ;

Xu, Jin ;

Rojas, X. ;

Doolin, C. ;

Suhel, A. ;

Beach, K. S. D. ;

Davis, J. P. .

NANO LETTERS, 2014, 14 (05) :2541-2545

[5] High-Q gold and silicon nitride bilayer nanostrings [J].

Biswas, T. S. ;

Suhel, A. ;

Hauer, B. D. ;

Palomino, A. ;

Beach, K. S. D. ;

Davis, J. P. .

APPLIED PHYSICS LETTERS, 2012, 101 (09)

[6]

Chaste J, 2012, NAT NANOTECHNOL, V7, P300, DOI [10.1038/NNANO.2012.42, 10.1038/nnano.2012.42]

[7] Multidimensional optomechanical cantilevers for high-frequency force sensing [J].

Doolin, C. ;

Kim, P. H. ;

Hauer, B. D. ;

MacDonald, A. J. R. ;

Davis, J. P. .

NEW JOURNAL OF PHYSICS, 2014, 16

[8] QUANTUM CASCADE LASER [J].

FAIST, J ;

CAPASSO, F ;

SIVCO, DL ;

SIRTORI, C ;

HUTCHINSON, AL ;

CHO, AY .

SCIENCE, 1994, 264 (5158) :553-556

[9] Microwave cavity-enhanced transduction for plug and play nanomechanics at room temperature [J].

Faust, T. ;

Krenn, P. ;

Manus, S. ;

Kotthaus, J. P. ;

Weig, E. M. .

NATURE COMMUNICATIONS, 2012, 3

[10]

Gavartin E, 2012, NAT NANOTECHNOL, V7, P509, DOI [10.1038/nnano.2012.97, 10.1038/NNANO.2012.97]

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