WO2006011348A1 - 分子計測装置および分子計測方法 - Google Patents
分子計測装置および分子計測方法 Download PDFInfo
- Publication number
- WO2006011348A1 WO2006011348A1 PCT/JP2005/012689 JP2005012689W WO2006011348A1 WO 2006011348 A1 WO2006011348 A1 WO 2006011348A1 JP 2005012689 W JP2005012689 W JP 2005012689W WO 2006011348 A1 WO2006011348 A1 WO 2006011348A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molecule
- substrate
- cantilever
- probe
- measurement
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01Q—SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBE MICROSCOPY [SPM]
- G01Q60/00—Particular types of SPM [Scanning Probe Microscopy] or microscopes; Essential components thereof
- G01Q60/24—AFM [Atomic Force Microscopy] or apparatus therefor, e.g. AFM probes
- G01Q60/38—Probes, their manufacture, or their related instrumentation, e.g. holders
- G01Q60/42—Functionalisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y35/00—Methods or apparatus for measurement or analysis of nanostructures
Definitions
- the conventional single-molecule measurement method is a technique in which a single polymer is sandwiched between a probe and a substrate, and molecules are stretched in a uniaxial direction.
- molecules are stretched using one of the three axes (x, y, z axes) of the fine displacement element with reference to, for example, an atomic force microscope.
- As a control in the uniaxial direction based on the apparatus for example, there is a control method in which the stretching is performed with a constant uniaxial motion speed or a force acting in the uniaxial direction.
- there are few methods such as controlling the stretching direction of molecules using multiple axes.
- An object of the present invention is to provide a molecular measurement apparatus and a molecular measurement method for measuring molecules by controlling the stretching direction of molecules in a uniaxial direction.
- the molecular measurement apparatus of the present invention includes a pulling means for pulling up one end of a molecule existing on the substrate, a portion where the molecule is in contact with the substrate, and a portion where the molecule is separated from the substrate by pulling up And a control means for controlling the position of the pulling means on the vertical line with respect to the substrate.
- molecules can be measured by controlling the stretching direction of the molecules in a uniaxial direction. wear.
- FIG. 1 is a diagram showing an example of an operation for stretching a molecule in one embodiment of the present invention.
- FIG.7 Diagram showing an example of the configuration of a molecular measurement device
- Examples of the lifting unit include a means used in a measuring method for deforming molecules, such as a cantilever, glass-one dollar, light radiation pressure (optical pipette), and the like.
- Glass-One dollar is a glass rod that is processed into a thin needle shape.
- the lifting section has a tip (tip portion, for example, a forcech probe) for lifting one end of the molecule.
- the “peeling point” is a boundary between a portion where the molecule is in contact with the substrate and a portion where the molecule is separated from the substrate by pulling up.
- the term “by pulling up” means that the molecule is stretched or the molecule is pulled up by the pulling portion.
- the measurement amounts in the molecular measurement are “a movement amount of the molecular measurement device (for example, an atomic force microscope device)” and “a force in a direction perpendicular to the substrate”.
- “Movement amount of molecular measurement device” is the distance between the substrate and the tip of the lifting part (for example, the cantilever probe), and “force in the direction perpendicular to the substrate” is the deflection amount of the lifting part.
- the “movement amount of the molecular measuring device” can be said to be the movement amount of the device or the experimenter. Therefore, in order to make the movement amount of the molecular measurement device coincide with the displacement amount of the molecule, uniaxial stretching measurement is desired.
- FIG. 2 is a diagram illustrating an example of an operation for stretching a molecule by non-uniaxial stretching.
- Fig. 2 when the molecule 900 is pulled, the direction in which it was pulled (stretching direction) and the direction in which the material was deformed (displacement vector) should be the same axis.
- FIG. 3 is a diagram schematically illustrating an example of the flow of the uniaxial stretching operation.
- the length b Assume an object with four panels.
- the serial panel shown in Fig. 3 is a virtual material.
- the actual molecular peeling unit is expected to be continuous (discontinuous at the atomic level), and the model in Fig. 3 differs from the actual molecular chain.
- the linear distance, ⁇ is the angle formed by the z-axis and the cantilever 200 probe.
- the scanner 500 installs the substrate 100 and moves the substrate 100 in the X-axis, y-axis, and z-axis directions.
- the deflection amount storage unit 512 stores the measured deflection amount and position information where the deflection amount is measured. For the measured deflection amount, a predetermined number of deflection amounts, for example, the number of deflection amounts in a predetermined range for extracting the minimum value is stored.
- the position information is information for specifying the position of the probe when the deflection amount is measured.
- FIG. 9 is a flowchart showing an example of the molecular measurement operation.
- the operation of the control unit 510 will be mainly described.
- the measurement determination unit 511 acquires the amount of deflection after moving the probe and stores it in the deflection amount storage unit 512 (S 14).
- the measurement determination unit 511 determines whether the deflection amount is measured for the plurality of measurement points (S15). If not all measurement points have been measured (NO in S15), repeat the process from S13. When all measurement points are measured (YES at S15), the measurement judgment unit 511 extracts the minimum value of the measured deflection amount force (S16) and moves the probe to the minimum value position via the probe control unit 514. Is moved (S 17).
- the measurement determination unit 511 determines whether the amount of deflection at each measurement point is within a predetermined range (S18). The predetermined range is held by the measurement determination unit 511.
- the probe position force of the molecule before the peeling is also removed.
- the shape, the length of the peeled molecule (the length or amount of the part that should be peeled if the molecular weight is divided), and the behavior of the adsorption force and adsorption / desorption time change from the fluctuation of the starting point can be known (acquisition of position information necessary for molecular manipulation).
- This molecular space information becomes basic information in the molecular translation and rotation operation, and can be used for the production of molecular wiring.
- the scanner 500 force or another scanner is installed, and the cantilever 200 is moved under the control of the computer 300.
- the cantilever 200 is moved, and the relative position between the peeling point of the molecule 900 and the cantilever 200 is controlled by moving the substrate by controlling the scanner 500. Including.
- FIG. 8 and FIG. 9 it can also be realized by a force electronic circuit or the like that describes an example of controlling the position of the probe using software.
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- Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Radiology & Medical Imaging (AREA)
- Crystallography & Structural Chemistry (AREA)
- Analytical Chemistry (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/658,728 US7752897B2 (en) | 2004-07-30 | 2005-07-08 | Molecule measuring device and molecule measuring method |
JP2006529009A JP4852759B2 (ja) | 2004-07-30 | 2005-07-08 | 分子計測装置および分子計測方法 |
EP05758240A EP1780529A4 (en) | 2004-07-30 | 2005-07-08 | DEVICE FOR MEASURING MOLECULES AND METHOD FOR MEASURING MOLECULES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004224573 | 2004-07-30 | ||
JP2004-224573 | 2004-07-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006011348A1 true WO2006011348A1 (ja) | 2006-02-02 |
Family
ID=35786099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/012689 WO2006011348A1 (ja) | 2004-07-30 | 2005-07-08 | 分子計測装置および分子計測方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7752897B2 (ja) |
EP (1) | EP1780529A4 (ja) |
JP (1) | JP4852759B2 (ja) |
WO (1) | WO2006011348A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4734653B2 (ja) * | 2004-09-09 | 2011-07-27 | 国立大学法人北海道大学 | ゲル基板材料を用いた分子測定装置および分子測定方法 |
CN113436777B (zh) * | 2021-08-27 | 2022-01-14 | 之江实验室 | 基于探针的双向电泳力光阱起支方法及装置与应用 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001165840A (ja) * | 1999-12-07 | 2001-06-22 | Seiko Instruments Inc | 遺伝子解析方法及び装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6677697B2 (en) * | 2001-12-06 | 2004-01-13 | Veeco Instruments Inc. | Force scanning probe microscope |
-
2005
- 2005-07-08 WO PCT/JP2005/012689 patent/WO2006011348A1/ja active Application Filing
- 2005-07-08 EP EP05758240A patent/EP1780529A4/en not_active Withdrawn
- 2005-07-08 JP JP2006529009A patent/JP4852759B2/ja active Active
- 2005-07-08 US US11/658,728 patent/US7752897B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001165840A (ja) * | 1999-12-07 | 2001-06-22 | Seiko Instruments Inc | 遺伝子解析方法及び装置 |
Non-Patent Citations (5)
Title |
---|
INOKAI ATSUSHI ET AL: "Tribology eno Atarashii Approach, Tan'itsu Tanpakushitsu Bunshi no Rikigakuteki Enshin to Rheology Jikken.", JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS., vol. 49, no. 1, 15 January 2004 (2004-01-15), pages 49 - 55, XP002996813 * |
INOKAI ATSUSHI.: "Hyomen Kotei sareta Tanpakushitsu no Nano Rikigaku. (Nanomechanics of Surface Immobilized Protein Molecules)", JOURNAL OF THE SURFACE SCIENCE SOCIETY OF JAPAN., vol. 22, no. 9, 10 September 2001 (2001-09-10), pages 620 - 626, XP002996815 * |
NAKAMURA CHIKASHI ET AL: "AFM o Mochiita Seitai Bunshi, Saibo Sosa Gijutsu no Kaihatsu.", THE ELECTROCHEMICAL SOCIETY OF JAPAN DAI 69 KAI TAIKAI KOEN YOSHISHU., 25 March 2002 (2002-03-25), pages 283, XP002996814 * |
See also references of EP1780529A4 * |
TAKEDA SEIJI ET AL: "Measurement of the Length of the alpha Helical Section of a Peptide Directly Using Atomic Force Microscopy.", CHEM PHARM BULL., vol. 49, no. 12, 2001, pages 1512 - 1516, XP002996812 * |
Also Published As
Publication number | Publication date |
---|---|
JP4852759B2 (ja) | 2012-01-11 |
EP1780529A1 (en) | 2007-05-02 |
US20080289404A1 (en) | 2008-11-27 |
US7752897B2 (en) | 2010-07-13 |
JPWO2006011348A1 (ja) | 2008-05-01 |
EP1780529A4 (en) | 2011-11-09 |
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