CN1351254A - Signal detecting method and device for biochip - Google Patents
Signal detecting method and device for biochip Download PDFInfo
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- CN1351254A CN1351254A CN00130065A CN00130065A CN1351254A CN 1351254 A CN1351254 A CN 1351254A CN 00130065 A CN00130065 A CN 00130065A CN 00130065 A CN00130065 A CN 00130065A CN 1351254 A CN1351254 A CN 1351254A
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Abstract
A signal detecting method and device for biochip is disclosed. Said method includes such steps as arranging a biochip on an optical disk, reading the fluorescent signals of biochip and the data signal of optical disk by theoptical disk reader at same time, and reconstructing the 2D format of said fluorescent signal according the format of data signal relative to the fluorescent signal and the address relative to said data format. Its advantages include high resolution and high read speed of biochip.
Description
The present invention relates to method and device thereof that a kind of optical signal reads, particularly relate to a kind of method and apparatus of fluorescent signal detection of biochip.
Biochip (Biochip) has been used in aspects such as disease detection, DNA ordering analysis in biomedical sciemtifec and technical sphere, a kind of biochip 1 as shown in Figure 1 has plural number-individual biochemical probe 2 (Bioprob) in its surface, this biochemistry probe can be the biochemical molecular of various tool different chemical compositions, when examining object (for example, blood sample, Virus Sample etc.) contact with this biochemistry probe 2, promptly produce different chemical reactions.This bioprobe 2 after reacting with examining object can produce fluorescent signal 4 under the irradiation of incident ray 3, can check out the special properties of this examining object by the fluorescent signal that reads and analyze this biochip 1, for example, and viral species, gene ordering etc.Present known biochip optical signal detection system device, for example, U.S. Patent number 5346789 and 6067246, biochip is directly placed a reading device, incide biochip with a light source then, produce fluorescent, directly read the fluorescent signal again by a smooth check system through biochemical reaction.This kind biochip light check system is quite complicated huge, can't reach the purpose of fast detecting, and the resolution of the sample that can detect is poor.Along with biochip and detection technique thereof towards high density, high efficiency development trend, detection method and device that a kind of biochip optical signal quicker, more high-res need be provided are arranged.
The object of the present invention is to provide a kind of method and apparatus of signal detection of biochip, it has overcome, and known biochip light check system detection rates is slow, resolution is low and bulky shortcoming, has the little characteristics of high-res, high reading speed and volume.
According to above-mentioned purpose, the present invention utilizes existing compact disc system, with biochip design on CD-RW discsCD-RW, servo-drive system by CD-ROM device correctly focuses on laser spots on the biochip, because the laser spots of compact disc system is quite little, and reading speed is fast, can increase substantially the resolution of biochip and the speed that signal reads.
According to above-mentioned purpose, the present invention cooperates the data layout of CD-ROM device, when reading the fluorescent signal of biochip, read the signal of this CD-RW discsCD-RW data Layer simultaneously, by the signal of this data Layer at the pairing address of CD-RW discsCD-RW data layout, rebuild the two-dimensional format of this biochip fluorescent signal, and then analyze this chip.
For reaching above-mentioned purpose,, comprise the following steps: a biological chip design is placed in a CD-RW discsCD-RW according to a kind of biochip fluorescent signal detecting method of the present invention; Read the signal of this biological fluorescent signal and pairing this CD-RW discsCD-RW data Layer of this biochip simultaneously with a CD-RW discsCD-RW reading device; At the pairing address of data layout, rebuild the two-dimensional format of the fluorescent signal of this biochip by the signal of pairing this data Layer of this fluorescent signal.
For reaching above-mentioned purpose, a kind of CD-RW discsCD-RW reading device according to the present invention is to be designed to produce two laser spots simultaneously, focus on respectively on pairing this CD-RW discsCD-RW data Layer of this biochip and this biochip, and by a spectroscope that is positioned at the light echo light path, the signal light echo that the fluorescent signal that this biochip is produced and this data Layer reflect is separated, and with light detection device signal is taken out respectively then.
According to a kind of CD-RW discsCD-RW that is combined with biochip of the present invention, be to comprise at least one biochip, be attached at the surface of a CD-RW discsCD-RW or be implanted in the inside of CD-RW discsCD-RW, this CD-RW discsCD-RW has a data Layer at least.And the set-up mode of this biochip is a principle with fluorescent signal and pairing this CD-RW discsCD-RW data Layer of this biochip that cooperates the CD-RW discsCD-RW reading device can read this biochip simultaneously.
Below in conjunction with embodiment and accompanying drawing thereof the present invention is described in further detail.
Figure 1A and Figure 1B are a kind of synoptic diagram of known biochip;
Fig. 2 is the process flow diagram according to a kind of biochip light detecting method of the present invention;
Fig. 3 A is first example structure synoptic diagram according to a kind of biochip light check system of the present invention;
Fig. 3 B is according in the first embodiment of the invention, and the rear surface is pasted with the CD-RW discsCD-RW of biochip;
Fig. 3 C is that the rear surface that illustrates a CD-RW discsCD-RW is formed with groove in order to ccontaining biochip;
Fig. 4 A is second example structure synoptic diagram according to a kind of biochip light check system of the present invention;
Fig. 4 B is according in the second embodiment of the invention, and front surface is pasted with the CD-RW discsCD-RW of biochip;
Fig. 4 C is that the front surface that illustrates a CD-RW discsCD-RW is formed with groove in order to ccontaining biochip;
A CD-RW discsCD-RW is inner to be provided with biochip with position, the isoplanar outer ring of a data Layer to Fig. 4 D in order to illustrate.
As shown in Figure 2, be process flow diagram according to the signal detecting method of a kind of biochip of the present invention.
At first, a biological chip is combined 101 with a CD-RW discsCD-RW, wherein this CD-RW discsCD-RW for example, is the CD-RW discsCD-RW of a single-surface single-layer, has single data Layer, but not as limit, also can be the CD-RW discsCD-RW that other has the plural layer data Layer.This CD-RW discsCD-RW can be a read-only CD-RW discsCD-RW, also can be the CD-RW discsCD-RW that mono-recordable is gone into CD-RW discsCD-RW or be can be write type, so long as can all can be selected for use by any CD-RW discsCD-RW that a CD-RW discsCD-RW reading device reads.And this biochip can anyly be convenient to the mode that CD-RW discsCD-RW reads and is arranged at this CD-RW discsCD-RW surface or inner;
Then, read signal 102 with a CD-RW discsCD-RW reading device, this CD-RW discsCD-RW reading device for example is a specially designed CD-ROM device, can read the fluorescent signal 103 of this biochip and the signal 104 of pairing this CD-RW discsCD-RW data Layer of this biochip simultaneously;
Then, by signal pairing address on this CD-RW discsCD-RW data layout of pairing this data Layer of this fluorescent signal, rebuild the two-dimentional signal form 105 of the fluorescent signal of this biochip.And then analyze the signal of this biochip.
As shown in Figure 3A, be embodiment synoptic diagram according to a kind of biochip optical signal detection system of the present invention.
One CD-RW discsCD-RW 10 places a CD-RW discsCD-RW reading device 20, and the rear surface 11 of this CD-RW discsCD-RW 10 is pasted with at least one biochip 15, and this CD-RW discsCD-RW 10 also has at least one data Layer 13, and this data Layer 13 can be half penetrated bed.The thickness of this biochip 15 for example is 3 μ m, can directly be attached on the rear surface 11 of this CD-RW discsCD-RW 10 shown in Fig. 3 B.Also can be attached in these CD-RW discsCD-RW 10 rear surfaces 11 formed grooves 111 shown in Fig. 3 C, the size of this groove 111 is the sizes that are equivalent to biochip 15.This CD-RW discsCD-RW reading device 20 is with a laser diode (LaserDiode; LD) 21 to send wavelength be λ
1Laser 211, this laser 211 reflexes to collimation lens (Collimator Len) 23 via one first spectroscope (Beam Splitter) 22 becomes directional light, via a pair of focus objective lens (Objective Len) 24, the laser 211 that this is parallel focuses on this data Layer 13 of this biochip 15 and this biochip 15 pairing these CD-RW discsCD-RW 10 respectively again.Signal light echo 212 after this laser that focuses on this data Layer 13 is reflected still keeps original wavelength X
1, it is λ that this laser focusing then produces wavelength in this biochip 15
2 Fluorescent signal 213 reflection.After this signal light echo 212 of this data Layer 13 and this fluorescent signal 213 of this biochip 15 pass through these object lens 24, this collimation lens 23 and this first spectroscope 22 via original optical path, drop on a light echo spectroscope 25, this light echo spectroscope 25 is designed to this fluorescent signal 2132 of this signal light echo 212 of this data Layer 13 and this biochip 15 is separated.Therefore, this signal light echo 212 of this data Layer 13 reflexes to one first optical detector (Photo Detector) 26 through behind these light echo spectroscopes 25, and sensed and read.In addition, this fluorescent signal 213 of this biochip 15 then passes this light echo spectroscope 25 and is fed to one second optical detector 27, and is sensed then and read.The signal of this data Layer 13 that this first optical detector 26 is obtained, can be used on the one hand to produce the required servo signal of this CD-RW discsCD-RW reading device 20, comprise focusing, follow rail signal and automated power controlling signal (APC signal), for example, can provide and take advantage of an actuator 28 that carries these object lens 24 to do the action that focuses on and follow rail, this laser 211 can accurately be focused on this data Layer 13 and this biochip 15 of this CD-RW discsCD-RW 10.On the other hand, also can be by the signal of this data Layer 13 at the pairing address of data layout, as of the reference of this fluorescent signal 213 at these biochip 15 relative positions, for example, when this second optical detector 27 reads this fluorescent signal 213 of this biochip 15, the signal that writes down this data Layer 13 simultaneously is at the pairing address of data layout, then can rebuild the two-dimensional format of this fluorescent signal 213 of this biochip 15, and then analyze this biochip 15.
In above-mentioned first embodiment according to the invention, these bifocal object lens 24 also can be replaced by two object lens on same actuator.And second embodiment of the present invention that can be illustrated as Fig. 4 A.
One CD-RW discsCD-RW 10 that is combined with at least one biochip 15 is positioned in the CD-RW discsCD-RW reading device 20, and this CD-RW discsCD-RW 10 also has at least one data Layer 13.This biochip 15 can be attached at a front surface 12 of this CD-RW discsCD-RW 10 shown in Fig. 4 B.Also can be shown in Fig. 4 C, the groove 121 that is equivalent to these biochip 15 sizes that forms on this front surface of this CD-RW discsCD-RW 10 is with ccontaining this biochip 15.Also can be shown in Fig. 4 D, this biochip 15 is placed this CD-RW discsCD-RW 10 inside, with this position, data Layer 13 conplane outer ring of this CD-RW discsCD-RW 10.This reading device of optic disk machine 20 has one first object lens 31 and one second object lens 32 are arranged on the same actuator 28.One laser diode (Laser Diode; LD) 21 to send wavelength be λ
1Laser 211, this laser 211 reflexes to collimation lens (Collimator Len) 23 via one first spectroscope (Beam Splitter) 22 becomes directional light, again via one second spectroscope 29, this laser 211 is divided into two-way, wherein one the tunnel via this data Layer 13 that focuses on this CD-RW discsCD-RW 10 behind these first object lens 31, another road then via after the reflection of a reflexed mirror (Folding Mirror) 30 by these second object lens 32, and focus on this biochip 15.Signal light echo 212 after this laser that focuses on this data Layer 13 is reflected still keeps original wavelength X
1, this laser focusing then produces wavelength X in this biochip 15
2 Fluorescent signal 213 reflection.This signal light echo 212 of this data Layer 13 drops on a light echo spectroscope 25 after passing through these first object lens 31, this reflexed mirror 30, this second spectroscope 29, this collimation lens 23 and this first spectroscope 22 via original optical path.And this fluorescent signal 213 of this biochip 15 via original optical path by these second object lens 32, this reflexed mirror 30, this second spectroscope 29, this collimation lens 23 and this first spectroscope 22 after, drop on this light echo spectroscope 25, this light echo spectroscope 25 is designed to this fluorescent signal 213 of this signal light echo 212 of this data Layer 13 and this biochip 15 is separated.Therefore, this signal light echo 212 of this data Layer 13 reflexes to one first optical detector (Photo Detector) 26 through behind these light echo spectroscopes 25, and sensed and read.In addition, this fluorescent signal 213 of this biochip 15 then passes this light echo spectroscope 25 and is fed to one second optical detector 27, and is sensed then and read.
Above-described content only is the preferred embodiment among the present invention, is not to be used for limiting basis-working of an invention scope; All equal variation and modifications of being done according to this claim scope are this claim scope and contain.
Claims (23)
1, a kind of signal detecting method of biochip, wherein to be subjected to wavelength be λ to this biochip
1Rayed the time wavelength that can produce be λ
2The fluorescent signal, it is characterized in that comprising the following steps: at least
At least one this biochip is arranged at a CD-RW discsCD-RW with at least one data Layer;
Read the signal of this data Layer of the fluorescent signal of this biochip and pairing this CD-RW discsCD-RW of this biochip simultaneously with a CD-RW discsCD-RW reading device; And
At the pairing address of data layout, rebuild the two-dimensional format of the fluorescent signal of this biochip by the signal of pairing this data Layer of this fluorescent signal.
2, the signal detecting method of biochip as claimed in claim 1 is characterized in that this CD-RW discsCD-RW reading device is that to produce wavelength simultaneously be λ
1Two laser spots, focus on pairing this data Layer of this biochip and this biochip respectively, and after separating with the fluorescent that a light echo spectroscope produces light echo and this biochip of this data Layer reflection, with one first optical detector sensing and read the signal of this data Layer, with one second optical detector sensing and read this fluorescent signal.
3, the signal detecting method of biochip as claimed in claim 2 is characterized in that this two laser spots is to see through a pair of focus objective lens to produce.
4, the signal detecting method of biochip as claimed in claim 2 is characterized in that this two laser spots is that two object lens that see through on the actuator of this CD-RW discsCD-RW reading device produce.
5, a kind of structure of signal detecting system of biochip, wherein to be subjected to wavelength be λ to this biochip
1Rayed the time can to produce wavelength be λ
2The fluorescent signal, it is characterized in that comprising at least:
One is provided with the CD-RW discsCD-RW of at least one this biochip, and this CD-RW discsCD-RW also has at least one data Layer;
One CD-RW discsCD-RW reading device can read the signal of this data Layer of the fluorescent signal of this biochip and pairing this CD-RW discsCD-RW of this biochip simultaneously; And
One data processing unit at the pairing address of data layout, is rebuild the two-dimensional format of the fluorescent signal of this biochip by the signal of pairing this data Layer of this fluorescent signal.
6, the structure of the signal detecting system of biochip as claimed in claim 5 is characterized in that it is λ that this CD-RW discsCD-RW reading device can produce wavelength simultaneously
1Two laser spots, focus on pairing this data Layer of this biochip and this biochip respectively, and this CD-RW discsCD-RW reading device has a light echo spectroscope, the fluorescent that produces in order to light echo and this biochip with this data Layer reflection separates; One first optical detector is in order to sensing and read the signal of this data Layer; And one second optical detector, in order to sensing and read this fluorescent signal.
7, the structure of the signal detecting system of biochip as claimed in claim 6, it is characterized in that-this CD-RW discsCD-RW reading device also has a pair of focus objective lens, produces this two laser spots by these bifocal object lens.
8, the structure of the signal detecting system of biochip as claimed in claim 6 is characterized in that this CD-RW discsCD-RW reading device also has two object lens and is positioned on the actuator of this CD-RW discsCD-RW reading device, produces this two laser spots by these two object lens.
9, the structure of the signal detecting system of biochip as claimed in claim 5 is characterized in that this biochip is the rear surface that is attached at this CD-RW discsCD-RW.
10, the structure of the signal detecting system of biochip as claimed in claim 9, the rear surface that it is characterized in that this CD-RW discsCD-RW also be formed be equivalent to this biochip size groove in order to ccontaining this biochip.
11, the structure of the signal detecting system of biochip as claimed in claim 5 is characterized in that this biochip is the front surface that is attached at this CD-RW discsCD-RW.
12, the structure of the signal detecting system of biochip as claimed in claim 11, the front surface that it is characterized in that this CD-RW discsCD-RW also be formed be equivalent to this biochip size groove in order to ccontaining this biochip.
13, the structure of the signal detecting system of biochip as claimed in claim 5 is characterized in that this biochip is to be arranged in this CD-RW discsCD-RW and position, the isoplanar outer ring of this data Layer.
14, a kind of CD-RW discsCD-RW reading device, in order to read the CD-RW discsCD-RW that is provided with at least one biochip, wherein to be subjected to wavelength be λ to this biochip
2Rayed the time can produce the fluorescent signal that wavelength is λ, it is characterized in that: this CD-RW discsCD-RW reading device, can produce wavelength simultaneously is λ
1Two laser spots and focus on this biochip respectively and the data Layer of pairing this CD-RW discsCD-RW of this biochip, with the fluorescent signal that reads this biochip simultaneously and the signal of pairing this data Layer of this biochip.
15, CD-RW discsCD-RW reading device as claimed in claim 14, it is characterized in that the light echo of this data Layer reflection and the fluorescent of this biochip generation being separated with a light echo spectroscope, and with one first optical detector sensing and read the signal of this data Layer, and one second optical detector sensing and read this fluorescent-signal.
16, CD-RW discsCD-RW reading device as claimed in claim 14 is characterized in that producing this two laser spots by a bifocal thing.
17, CD-RW discsCD-RW reading device as claimed in claim 14 is characterized in that two object lens on the actuator that is positioned at this CD-RW discsCD-RW reading device produce this two laser spots.
18, a kind of CD-RW discsCD-RW that is combined with biochip is characterized in that this CD-RW discsCD-RW is provided with at least one biochip.
19, the CD-RW discsCD-RW that is combined with biochip as claimed in claim 18 is characterized in that this biochip is the rear surface that is attached at this CD-RW discsCD-RW.
20, the CD-RW discsCD-RW that is combined with biochip as claimed in claim 19, the rear surface that it is characterized in that this CD-RW discsCD-RW also be formed be equivalent to this biochip size groove in order to ccontaining this biochip.
21, the CD-RW discsCD-RW that is combined with biochip as claimed in claim 18 is characterized in that this biochip is the front surface that is attached at this CD-RW discsCD-RW.
22, the CD-RW discsCD-RW that is combined with biochip as claimed in claim 21, the front surface that it is characterized in that this CD-RW discsCD-RW also be formed be equivalent to this biochip size groove in order to ccontaining this biochip.
23. the CD-RW discsCD-RW that is combined with biochip as claimed in claim 18 is characterized in that this biochip is to be arranged in this CD-RW discsCD-RW and the position, the isoplanar outer ring of a data Layer of this CD-RW discsCD-RW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001300652A CN1177939C (en) | 2000-10-26 | 2000-10-26 | Signal detecting method and device for biochip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001300652A CN1177939C (en) | 2000-10-26 | 2000-10-26 | Signal detecting method and device for biochip |
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| Publication Number | Publication Date |
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| CN1351254A true CN1351254A (en) | 2002-05-29 |
| CN1177939C CN1177939C (en) | 2004-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001300652A Expired - Lifetime CN1177939C (en) | 2000-10-26 | 2000-10-26 | Signal detecting method and device for biochip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312476C (en) * | 2004-08-27 | 2007-04-25 | 清华大学 | Method and system for detecting biological chip by space phase modulation interference array |
| CN100412547C (en) * | 2002-06-06 | 2008-08-20 | 索尼株式会社 | Bioassay unit and substrate for bioassay |
-
2000
- 2000-10-26 CN CNB001300652A patent/CN1177939C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412547C (en) * | 2002-06-06 | 2008-08-20 | 索尼株式会社 | Bioassay unit and substrate for bioassay |
| CN1312476C (en) * | 2004-08-27 | 2007-04-25 | 清华大学 | Method and system for detecting biological chip by space phase modulation interference array |
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| Publication number | Publication date |
|---|---|
| CN1177939C (en) | 2004-12-01 |
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Granted publication date: 20041201 |