CN106636405B - 一种核酸检测的复合物及其制备方法与核酸检测的方法 - Google Patents
一种核酸检测的复合物及其制备方法与核酸检测的方法 Download PDFInfo
- Publication number
- CN106636405B CN106636405B CN201611217300.0A CN201611217300A CN106636405B CN 106636405 B CN106636405 B CN 106636405B CN 201611217300 A CN201611217300 A CN 201611217300A CN 106636405 B CN106636405 B CN 106636405B
- Authority
- CN
- China
- Prior art keywords
- nucleic acid
- detection
- compound
- solution
- detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 150000007523 nucleic acids Chemical class 0.000 title claims abstract description 119
- 108020004707 nucleic acids Proteins 0.000 title claims abstract description 110
- 102000039446 nucleic acids Human genes 0.000 title claims abstract description 110
- 238000001514 detection method Methods 0.000 title claims abstract description 47
- 150000001875 compounds Chemical class 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000002105 nanoparticle Substances 0.000 claims abstract description 29
- 239000010931 gold Substances 0.000 claims abstract description 20
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052737 gold Inorganic materials 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 201000010099 disease Diseases 0.000 claims abstract description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 7
- 230000000295 complement effect Effects 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 19
- 238000000862 absorption spectrum Methods 0.000 claims description 8
- 108020004414 DNA Proteins 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 102000053602 DNA Human genes 0.000 claims description 4
- 108020004682 Single-Stranded DNA Proteins 0.000 claims description 4
- 239000007853 buffer solution Substances 0.000 claims description 4
- 108091028043 Nucleic acid sequence Proteins 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000036541 health Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 description 14
- 239000000047 product Substances 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- -1 3-hydroxyethyl piperazine-2-hydroxypropanesulfonic acid Chemical compound 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- GIZQLVPDAOBAFN-UHFFFAOYSA-N HEPPSO Chemical compound OCCN1CCN(CC(O)CS(O)(=O)=O)CC1 GIZQLVPDAOBAFN-UHFFFAOYSA-N 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 239000012491 analyte Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000026350 Inborn Genetic disease Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 230000006907 apoptotic process Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000008827 biological function Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009509 drug development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 208000016361 genetic disease Diseases 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004660 morphological change Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006053 organic reaction Methods 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000014493 regulation of gene expression Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 238000002371 ultraviolet--visible spectrum Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Zoology (AREA)
- Biochemistry (AREA)
- Wood Science & Technology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Immunology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- General Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Biophysics (AREA)
Abstract
本发明涉及核酸检测领域,特别涉及一种核酸检测复合物及制备方法。本发明提供一种核酸检测复合物,包括核酸、金纳米粒子和氧化石墨烯;所述核酸为与待测核酸反向互补的核酸序列;氧化石墨烯上修饰有纳米粒子。本发明还提供所述复合物的制备方法和应用所述复合物检测核酸的方法。由此,本发明解决了现有技术中检测特定核酸序列的费时费力的技术问题,提供的检测方法无需对样品进行预处理,操作简单、识别灵敏度高。同时,本发明提供的核酸检测复合物化学性质稳定,在室温条件下可长时间保存,应用方便,可用于医院临床疾病和健康状况诊断。
Description
技术领域
本发明涉及核酸检测领域,特别涉及一种核酸检测的复合物及其制备方法与核酸检测的方法。
背景技术
众所周知,核酸与病原基因和遗传疾病、基因表达调控、细胞增殖和凋亡以及癌症的发生、发展存在着重要的联系。生物的组织、细菌、病毒均具有独特的核酸序列,这些特定序列的检测在基因分析、疾病诊断、食品污染、法医鉴定和环境监测等领域起着重要作用。研究新的核酸检测技术对促进生物功能研究、疾病诊断以及相关基因药物开发具有重大意义。
在过去的几十年中,特定核酸序列的检测方法具有用时长、操作复杂、费时费力的技术缺陷。
伴随着生物放大技术和纳米技术的迅速发展,利用新颖的生物放大技术和特殊性质的纳米探针,构建基于双倍信号放大的超灵敏核酸传感器是当前的发展方向。但是由于核酸序列没有可显示的信号,核酸的检测方法,总要对核酸进行复杂的信号标记,这使得检测变得更为复杂。因此研发一种高灵敏的、无标记的核酸检测方法是本领域技术人员亟待解决的技术问题。
目前所知的纳米粒子具有催化的特殊性质,因此,能应用于很多有机反应。而纳米粒子的催化活性完全依赖于其表面性质,其表面微小的形态变化可以影响其催化行为,进而影响催化产物的数量。基于上述原理,利用纳米粒子的表面性质和催化产物数量的对应关系,可以作为新的设计思路研发一种高灵敏的、无标记的核酸检测产品。
发明内容
有鉴于此,为了解决上述的技术问题,本发明公开了一种核酸检测复合物以及制备方法与核酸检测的方法。
为了实现上述发明目的,本发明提供以下技术方案:
本发明提供了一种核酸检测复合物,包括核酸、金纳米粒子和氧化石墨烯;所述核酸负载在纳米粒子修饰的氧化石墨烯上。
作为优选,所述核酸为单链DNA或RNA。
本领域技术人员可以理解,所述核酸检测复合物中所述核酸的含量依赖于所述负载金纳米粒子氧化石墨烯的含量,而所述纳米粒子的含量依赖于所述氧化石墨烯的含量,以达到饱和负载为止。
本发明还提供了所述核酸检测复合物的制备方法,金纳米粒子与氧化石墨烯结合,得到金纳米粒子负载的氧化石墨烯,然后与核酸分子结合得到核酸检测复合物。
本发明还提供了一种核酸检测的组合物,包括本发明上述的核酸检测的复合物和3-(羟乙基哌嗪)-2-羟基丙磺酸(HEPPSO)。
本发明还提供了一种核酸检测的方法,包括以下步骤:
步骤1,将待测样品加入缓冲溶液中,得到待测溶液;
步骤2,将权利要求1所述核酸检测的复合物溶液与3-羟乙基哌嗪-2-羟基丙磺酸溶液混合,然后与待测溶液混合,检测其紫外可见吸收光谱;
其中所述核酸检测的复合物中的核酸序列为与待测样品中的核酸序列特异性结合的序列。
3-(羟乙基哌嗪)-2-羟基丙磺酸可以吸附于金纳米粒子的表面,并被金催化得到具有紫外吸收(340nm)的催化产物-酸酐类衍生物。但当核酸序列(单链的核酸)吸附于金纳米粒子表面时,由于核酸分子和金纳米粒子的相互作用,阻止了金纳米粒子表面和HEPPSO的作用,没有催化产物产生。当与待测溶液混合时,由于待测溶液中的核酸分子和金纳米粒子表面核酸分子的相互作用发生特异性结合,形成互补配对结合的双链核酸,会导致金纳米粒子表面的核酸分子脱离下来,使得HEPPSO和金纳米粒子表面再发生相互作用,诱导催化产物的出现,其紫外吸收强度升高。根据待测溶液中的核酸分子的数量与催化产物吸收强度增加的对应关系,可以定量检测核酸分子。
此外,3-(羟乙基哌嗪)-2-羟基丙磺酸还可以判断所述核酸检测的复合物中的核酸分子和金纳米粒子是否充分反应,判断该核酸检测的复合物是否可用于核酸检测。所述核酸检测的复合物与HEPPSO反应,所述复合物在340nm不出现吸收峰时,即反应充分,可用于核酸检测。
其中,所述3-羟乙基哌嗪-2-羟基丙磺酸溶液的制备方法为HEPPSO溶解于水中,氢氧化钠水溶液调节pH至7.4-7.5。
作为优选,所述核酸检测的复合物的工作浓度为0.5mg/mL-1mg/mL,所述3-(羟乙基哌嗪)-2-羟基丙磺酸的工作浓度为25mmol/L。
作为优选,所述核酸检测的方法中,所述待测样品为体液或血清。
所述待测样品中的核酸包括但不限于病毒核酸或细菌核酸,还可以为疾病的标志物的核酸。如肿瘤标志物的核酸。
进一步,所述待测样品中的核酸为单链DNA或RNA。
作为优选,所述单链DNA或RNA的浓度为1.0×10-11mol/L-2.5×10-7mol/L。
本发明所述核酸检测的方法中所述检测波长优选为340nm。
与现有技术相比,本发明提供的核酸检测复合物及核酸检测的组合物化学性质稳定,同时在室温条件下可长时间保存,应用方便。本发明提供的核酸检测的方法无需对样品进行预处理,操作简单、识别灵敏度高,广泛适用于医院临床疾病和健康状况诊断。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1示实施例2中核酸复合物中加入核酸后催化产物的紫外可见吸收光谱图,吸收强度随着分析物浓度的增加而增强;
图2示实施例2中核酸复合物对核酸检测的浓度范围曲线图。
具体实施方式
本发明公开了一种核酸复合物,本领域技术人员可以借鉴本文内容,适当改进工艺参数实现。特别需要指出的是,所有类似的替换和改动对本领域技术人员来说是显而易见的,它们都被视为包括在本发明。本发明的方法及应用已经通过较佳实施例进行了描述,相关人员明显能在不脱离本发明内容、精神和范围内对本文所述的方法和应用进行改动或适当变更与组合,来实现和应用本发明技术。
本发明提供的一种核酸检测的复合物及其制备方法与核酸检测的方法,其中所用原料及试剂均可由市场购得。
HEPPSO溶液的配制:将HEPPSO溶解在二次蒸馏水中,利用摩尔浓度为6mol/L的氢氧化钠溶液调节pH,得到浓度为100mmol/L,pH值为7.5的HEPPSO溶液
下面结合实施例,进一步阐述本发明:
实施例1:核酸检测的复合物的制备:
将浓度为6nmol/L Au纳米粒子与浓度为0.5mg/mL的氧化石墨烯充分反应,然后离心纯化,最后得到负载有Au纳米粒子的石墨烯复合物,最终其浓度调节为0.5mg/mL,再把浓度为1μmol/L与待测核酸反向互补的核酸序列(序列为5’-AATCCGTCGAGCAGAGTT-3’,SEQ IDNO.1)负载到所述纳米粒子氧化石墨烯的复合结构上,离心2次去除多余核酸分子,得到核酸检测的复合物。
将制得的核酸检测的复合物与浓度为25mmol/L的HEPPSO反应,若所述复合物在340nm不出现吸收峰,则该复合物中的金纳米粒子和核酸分子充分反应,可用于核酸检测。
实施例2:检测核酸分子:
将待测核酸(序列为5’-AACTCTGCTCGACGGATT-3,SEQ ID NO.2)溶于缓冲溶液中,配成0.01mol/L的核酸储备溶液,用缓冲溶液将所述待测核酸储备液分别稀释为1.0×10-11,5.0×10-11,1.0×10-10,5.0×10-10,1.0×10-9,5.0×10-9,1.0×10-8,5.0×10-8,1.0×10-7,5.0×10-7,1.0×10-6,2.5×10-6,1.0×10-5,2.0×10-5,3.0×10-5和1.0×10-4mol/L。取17份实施例1制备的核酸复合物,编号为1-17,每份180μL,向第2-17份核酸复合物中分别加入20μL上述各个浓度的核酸储备溶液,第1份核酸复合物中添加20μL缓冲溶液,混匀放置1小时后,将各溶液在6000rmp下离心15分钟,取上清液,测定各上清液的吸收光谱,结果参见图1。图1为本发明实施例提供的试剂混合液中加入核酸以后催化产物的紫外可见吸收光谱图。
参见图1,图1中的曲线由下到上分别为空白的上清液、含1.0×10-12mol/L、5.0×10-12mol/L、1.0×10-11mol/L、5.0×10-11mol/L、1.0×10-10mol/L、5.0×10-10mol/L、1.0×10-9mol/L、5.0×10-9mol/L、1.0×10-8mol/L、5.0×10-8mol/L、1.0×10-7mol/L、2.5×10- 7mol/L、1.0×10-6mol/L、2.0×10-6mol/L、3.0×10-6mol/L和1.0×10-5mol/L待测核酸的核酸复合物的上清液的紫外可见吸收光谱图。由图1可知,吸收强度随着分析物浓度的增加而增强。当核酸浓度达到5.0×10-12mol/L时,催化产物吸收光谱在340nm开始出现;随着核酸浓度的增加,催化产物吸收光谱的增加程度更加明显;当浓度达到1.0×10-5mol/L时,吸收光谱最强。因此,本发明提供的核酸复合物检测核酸的灵敏度可达5.0×10-12mol/L,灵敏度较高。
参见图2可知,从1.0×10-11mol/L-2.5×10-7mol/L可以很好的线性拟合,因此本发明提供的核酸复合物检出核酸的浓度线性范围为1.0×10-11mol/L-2.5×10-7mol/L。
综上所述,本发明解决了现有技术中检测特定核酸序列的费时费力的技术问题。本发明提供的检测方法无需对样品进行预处理,操作简单、识别灵敏度高。同时,本发明提供的核酸检测复合物化学性质稳定,在室温条件下可长时间保存,应用方便,可用于医院临床疾病和健康状况诊断。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
SEQUENCE LISTING
<110> 中国科学院长春光学精密机械与物理研究所
<120> 一种核酸检测的复合物及其制备方法与核酸检测的方法
<130> MP1621579
<160> 2
<170> PatentIn version 3.3
<210> 1
<211> 18
<212> DNA
<213> 人工序列
<400> 1
aatccgtcga gcagagtt 18
<210> 2
<211> 18
<212> DNA
<213> 人工序列
<400> 2
aactctgctc gacggatt 18
Claims (4)
1.一种核酸检测的组合物,包括核酸检测的复合物和3-(羟乙基哌嗪)-2-羟基丙磺酸,
所述核酸检测的复合物由表面核酸分子、金纳米粒子和氧化石墨烯组成;所述表面核酸分子负载在金纳米粒子修饰的氧化石墨烯上;所述表面核酸分子为单链DNA或RNA,可与待测核酸特异性结合、形成互补配对的双链核酸。
2.一种非疾病诊断目的的核酸检测的方法,其特征在于,包括以下步骤:
步骤1,将待测样品加入缓冲溶液中,得到待测溶液;
步骤2,将权利要求1所述核酸检测的复合物的溶液与3-(羟乙基哌嗪)-2-羟基丙磺酸溶液混合,然后与待测溶液混合,检测其紫外可见吸收光谱;
所述检测波长为340nm。
3.根据权利要求2所述的方法,其特征在于,所述3-(羟乙基哌嗪)-2-羟基丙磺酸溶液的pH 为7.4-7.5。
4.根据权利要求2所述的方法,其特征在于,所述核酸检测的复合物的工作浓度为0.5mg/mL -1 mg/mL,所述3-(羟乙基哌嗪)-2-羟基丙磺酸的工作浓度为25 mmol/L。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611217300.0A CN106636405B (zh) | 2016-12-26 | 2016-12-26 | 一种核酸检测的复合物及其制备方法与核酸检测的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611217300.0A CN106636405B (zh) | 2016-12-26 | 2016-12-26 | 一种核酸检测的复合物及其制备方法与核酸检测的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106636405A CN106636405A (zh) | 2017-05-10 |
CN106636405B true CN106636405B (zh) | 2021-01-05 |
Family
ID=58828295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611217300.0A Expired - Fee Related CN106636405B (zh) | 2016-12-26 | 2016-12-26 | 一种核酸检测的复合物及其制备方法与核酸检测的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106636405B (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103033544A (zh) * | 2012-12-11 | 2013-04-10 | 常州大学 | 基于石墨烯-贵金属复合材料的电化学dna传感器及其制备方法 |
CN103201057A (zh) * | 2010-11-05 | 2013-07-10 | 田中贵金属工业株式会社 | 免疫学测定用蓝色金纳米颗粒、其制造方法以及使用该蓝色金纳米颗粒的测定方法 |
CN103411933A (zh) * | 2013-08-04 | 2013-11-27 | 吉林大学 | 基于氧化石墨烯的表面等离激元共振dna传感器的制备方法 |
CN105727894A (zh) * | 2014-12-09 | 2016-07-06 | 中国科学院大连化学物理研究所 | 核酸适体修饰的磁性氧化石墨烯复合材料及其制备和应用 |
CN105886611A (zh) * | 2016-04-06 | 2016-08-24 | 青岛大学 | 磁性氧化石墨烯-纳米金免标记复合物的制备方法及应用 |
CN105879027A (zh) * | 2014-05-16 | 2016-08-24 | 中国科学院苏州纳米技术与纳米仿生研究所 | 核酸配体修饰的金纳米-石墨烯复合材料及其制备方法和应用 |
-
2016
- 2016-12-26 CN CN201611217300.0A patent/CN106636405B/zh not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103201057A (zh) * | 2010-11-05 | 2013-07-10 | 田中贵金属工业株式会社 | 免疫学测定用蓝色金纳米颗粒、其制造方法以及使用该蓝色金纳米颗粒的测定方法 |
EP2636469A1 (en) * | 2010-11-05 | 2013-09-11 | Tanaka Kikinzoku Kogyo K.K. | Blue-colored gold nanoparticles for immunological measurement, process for production of same, and measurement method using same |
CN103033544A (zh) * | 2012-12-11 | 2013-04-10 | 常州大学 | 基于石墨烯-贵金属复合材料的电化学dna传感器及其制备方法 |
CN103411933A (zh) * | 2013-08-04 | 2013-11-27 | 吉林大学 | 基于氧化石墨烯的表面等离激元共振dna传感器的制备方法 |
CN105879027A (zh) * | 2014-05-16 | 2016-08-24 | 中国科学院苏州纳米技术与纳米仿生研究所 | 核酸配体修饰的金纳米-石墨烯复合材料及其制备方法和应用 |
CN105727894A (zh) * | 2014-12-09 | 2016-07-06 | 中国科学院大连化学物理研究所 | 核酸适体修饰的磁性氧化石墨烯复合材料及其制备和应用 |
CN105886611A (zh) * | 2016-04-06 | 2016-08-24 | 青岛大学 | 磁性氧化石墨烯-纳米金免标记复合物的制备方法及应用 |
Non-Patent Citations (2)
Title |
---|
"Catalysis-reduction strategy for sensing inorganic and organic mercury based on gold nanoparticles";Xiaokun Li 等;《Biosensors and Bioelectronics》;20161105;第92卷;摘要,正文第329页左栏最后一段,第330页左栏第1段至333页左栏第2段,图4 * |
"DNA cleavage by Good’s buffers in the presence of Au(III)";Masaaki Tabata等;《Bull. Chem. Soc. Jpn》;20050731;第78卷;摘要,1263页右栏第2段至1267页左栏第1段 * |
Also Published As
Publication number | Publication date |
---|---|
CN106636405A (zh) | 2017-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Khonsari et al. | Recent trends in electrochemiluminescence aptasensors and their applications | |
Zhang et al. | Application of multiplexed aptasensors in food contaminants detection | |
He et al. | “Off” to “On” surface-enhanced raman spectroscopy platform with padlock probe-based exponential rolling circle amplification for ultrasensitive detection of MicroRNA 155 | |
Dong et al. | Electrochemical DNA biosensor based on a tetrahedral nanostructure probe for the detection of avian influenza A (H7N9) virus | |
Yin et al. | Label-free and turn-on aptamer strategy for cancer cells detection based on a DNA–silver nanocluster fluorescence upon recognition-induced hybridization | |
Arai et al. | Exploring the use of upconversion nanoparticles in chemical and biological sensors: from surface modifications to point-of-care devices | |
Wang et al. | Aptamer biosensor based on fluorescence resonance energy transfer from upconverting phosphors to carbon nanoparticles for thrombin detection in human plasma | |
Zhuang et al. | Ratiometric fluorescent bioprobe for highly reproducible detection of telomerase in bloody urines of bladder cancer patients | |
Yang et al. | A multicolor fluorescence nanoprobe platform using two-dimensional metal organic framework nanosheets and double stirring bar assisted target replacement for multiple bioanalytical applications | |
Wang et al. | Biomolecule-assisted synthesis and functionality of metal nanoclusters for biological sensing: a review | |
Zhang et al. | Time-resolved probes based on guanine/thymine-rich DNA-sensitized luminescence of terbium (III) | |
Han et al. | Multifunctional G-quadruplex-based fluorescence probe coupled with DNA-templated AgNCs for simultaneous detection of multiple DNAs and MicroRNAs | |
Ding et al. | Label-free detection of microRNA based on the fluorescence quenching of silicon nanoparticles induced by catalyzed hairpin assembly coupled with hybridization chain reaction | |
Wang et al. | Functionalized persistent luminescence nanoparticle-based aptasensor for autofluorescence-free determination of kanamycin in food samples | |
Cengiz Ozalp et al. | Aptamers: molecular tools for medical diagnosis | |
Mazlan et al. | Optical biosensing using newly synthesized metal salphen complexes: A potential DNA diagnostic tool | |
Wu et al. | A novel recyclable surface-enhanced Raman spectroscopy platform with duplex-specific nuclease signal amplification for ultrasensitive analysis of microRNA 155 | |
Gao et al. | Recent advances in biological detection with rolling circle amplification: design strategy, biosensing mechanism, and practical applications | |
Yu et al. | Label-free detection of Hg2+ based on Hg2+-triggered toehold binding, Exonuclease III assisted target recycling and hybridization chain reaction | |
Yazdian-Robati et al. | Application of the catalytic activity of gold nanoparticles for development of optical aptasensors | |
Eom et al. | Superb specific, ultrasensitive, and rapid identification of the Oseltamivir-resistant H1N1 virus: Naked-eye and SERS dual-mode assay using functional gold nanoparticles | |
Liu et al. | Rapid and ultrasensitive detection of DNA and microRNA-21 using a zirconium porphyrin metal-organic framework-based switch fluorescence biosensor | |
Wang et al. | Highly sensitive and selective aptasensor for detection of adenosine based on fluorescence resonance energy transfer from carbon dots to nano-graphite | |
CN105784666B (zh) | 一种纳米荧光生物传感器及其制备方法和应用 | |
Rahman et al. | Nanobiotechnology enabled approaches for wastewater based epidemiology |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 |
|
CF01 | Termination of patent right due to non-payment of annual fee |