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DNA,*,,,,,(,730000):DNA,、、、、、,、、、、。DNA,,。:DNA;;FundamentalsandprogressesofDNAelectrochemicalbiosensorMaoBin,HanGen-liang*,MaLi-ping,LiuBin,GaoXiao-ping,LiGong-nong,LiuGuo-han(InstituteofSensorTechnology,GansuAcademyofSciences,Lanzhou730000,China)Abstract:DNAelectrochemicalbiosensor,whichhasbeendevelopedrapidlyinrecentyears,isonenewtypeofbiosensors.Thiskindofbiosensorshassuperiorityinelectrodefabrication,durableyears,reproductionquality,testingsensitivity,productioncostandmicromationrealization.Sotheyareofsignificantprogressinresearchandapplication,suchasclinicalmedicalanalysis,geneticengineering,mechanismofdrugaction,newdrugselection,environmentalmonitoringandfoodengineering.ThefundamentalsofDNAelectrochemicalbiosensorisintroduced,theprogressesofthebiosensorareassortedandappraisedbrieflyanditsdevelopmenttrendsisdiscussedinthisarticle.Keywords:DNAelectrochemicalbiosensor;fundamentals;progress0(humangenomeproject,HGP),,。,、、。、、。,、,DNADNA,。DNA,DNA[1],、[2]、[3][4],。DNA[5]。DNA()DNA。、、、、、、、、、[5]。DNADNA[6]。:(QS001-C32-01)*,Tel:0931-8633673,E-mail:genlhan@vip.sina.comVol.29,No.1Mar.2009CHEMICALSENSORS29120093DNA,、、、、[7~9]。1DNADNA[10]DNA(single-strandedDNA,ssDNA),,,DNA。DNA(1):ssDNA、、1DNAFig.1ThemajorstepsofDNAelectrochemicalbiosensorfabrication。:1.1ssDNAssDNADNA,25~80,DNA。ssDNAssDNA,DNA。ssDNA:1),[11][12]ssDNA。2)DNA,,(2)。[13],,DNA。3),,、、。[14],DNAAu-S,DNA。4)-、(kD=1015)。DNA[15],,,1~10×10-12g。1.2ssDNA,ssDNA,DNA(double-strandedDNA,dsDNA)。:、、pH。1.3,。1.3.1DNA[16]。DelosSantos-Alvarez[17],,ssDNA,,DNA。1.3.2,dsDNAssDNA29102DNA(a),(b),(c),(d),(e),(f),(g)Fig.2Covalent-bindingMethodsofDNAligandsImmobilization(a)glasscarbonelectrode,(b)carbonpasteelectrode,(c)graphiteelectrode,(d)Auelectrode,(e)Auelectrode,(f)Ptelectrode,(g)manykindsofbasicelectrodedsDNA,:dsDNA,DNA。dsDNA,dsDNA,DNA。[18]、,DNA,[19]、[20][21]。1.3.3,ssDNA1:DNA11,,,DNA。[22]、[23~24]、[25~27]。、,,,DNA。DNA,:、[28~29]DNA。1.3.4。DNA,,。,,,DNA。Kavanagh[30]DNA,DNA。[31~33],[34]。2DNADNA:2.12.1.1,,,。DNA,Hashimoto[35]0.3mmDNA,。2.1.2Millan[36]ssDNA,18。Wang[37]p53,。Wang[38](PNA)ssDNA,PNA,ssDNA,。2.1.3DNADNA。[39],(、),DNAssDNA,DNA。Wang[40]dsDNA,,DNA,DNA。2.1.4DNA。Brett[41]DNA;Ovádeková[42]DNA;Kerman[43],;Gu[44]。2.22.2.1Wang[45]DNA,,1×10-9g/mL。[46]DNA,。Brett[47]DNA,。2.2.2(E.coli),,Wang[48],E.coliDNA。2.2.3DNA,DNA,[49~50]。[51]DNA,2.0×10-8mol/L。29122.32.3.1[52]ssDNA-,DNA,。2.3.2[53]DNA,(ATP)。DNAATP,,,,ATP。。2.4,、DNA(:、)。,,:、、、、、、、。[54]。、、。DNA,DNA。Devaraj[55],,、DNA。,DNA,[56]DNA-,。3DNA,,、、。,,DNA:1)ssDNA,,ssDNA;2),;3)、;4)DNA,;5)(peptidenucleicacid,PNA)ssDNA,;6)、、,。[1]CilkowskiML,FanfMM,LundMEJ.AsurfaceplasmonresonancemethodfoedetectingmultiplemodesofDNA-ligandinteractionws[J].Pharm.Biomed.Anal,2000,22(6):1037~1045.[2]PopeLH,AllenS,DaviesMC,etal.ProbingDNADuplexFormationandDNA-DrugInteractionsbytheQuartzCrystalMicrobalanceTechnique[J].Langmuir,2001,17(26):8300~8304.[3]VercoutereW,AkesonM.BiosensorsforDNAsequencedetection[J].Biology,2002,6(6):816~822.[4]OrpanaAK.Fluorescenceresonanceenergytransfer(FRET)usingssDNAbindingfluorescentdye[J].BiomolEng.,2004,21(2):45~50.[5]WangJ.SurveyandsummaryfromDNAbiosensorstogenechips[J].Nucl.Acids.Res.,2000,28(16):3011~3016.[6]MasciniM,PalchettiI,MarrazzaG,etal.DNAelec-trochemicalbiosensors[J].Anal.Chem.,2001,369(1):15~22.[7],,,.DNA[J].,2001,20(10):1~3.[8]BrabecV.DNAsensorforthedeterminationofantitumorplatinumcompounds[J].Electrochem.Acta.,2000,45:2929~2932.[9].DNA[J].,2001,28(1):125~128.[10]PividoriMI,MerkociA,AlegretS.Electrochemicalgenosensordesign:immobilisationofoligonucleotidesontotransducersurfacesanddetectionmethods[J].1:DNA13Biosens.Bioelectron.,2000,15(5-6):291~303.[11]XuC,CaiH,HeP,etal.Characterizationofsingle-strandedDNAonchitosan-modifiedelectrodeanditsap-plicationtothesequence-specificDNAdetection[J].FreseniusJ.Anal.Chem.,2001,369(5):428~432.[12]DellAD,TombelliS,MinunniM,etal.Detectionofclinicallyrelevantpointmutationsbyanovelpiezoelec-tricbiosensor[J].Biosens.Bioelectron.,2006,21(10):1876~1879.[13]SunXY,HePG,LiuSH,etal.Immobilizationofsin-gle-strandeddeoxyribonucleicacidongoldelectrodewithself-assembledaminoethanethiolmonolayerforDNAelectrochemicalsensorapplications[J].Talanta,1998,47(2):487~495.[14],,,.[J].,2005,26(3):193~196.[15]FilliardAD,BillonM,ValivacheT,etal.Biotin/avidinsystemforthegenerationoffullyrenewableDNAsensorbasedonbiotinylatedpolypyrrolefilm[J].Anal.Chim.Acta.,2004,515(2):271~277.[16]KermanK,KobayashiM,TamiyalE.RecenttrendsinelectrochemicalDNAbiosensortechnology[J].Meas.Sci.Technol.,2004,15(2):R1~R11.[17]De-los-Santos-AlvarezP,de-los-Santos-AlvarezN,Lobo-CastanonMJ,etal.Amplifiedlabel-freeelec-trocatalyticdetectionofDNAinthepresenceofcalciumions[J].Anal.Chem.,2002,74(14):3342~3347.[18]RobertMU,SharonW,JostV,etal.ElectronicDetectionofNucleicAcids:AVersatilePlatformforMolecularDi-agnostics[J].J.Molec.Diagn.,2001,3(2):74~84.[19]ErdemA,KermanK,MericB,etal.DNAelectrochemicalbiosensorforthedetectionofshortDNAsequencesrelat-edtothehepatitisBvirus[J].Electroanal.,1999,11:586~587.[20]YangIV,RoppPA,ThorpHH.TowardElectrochemicalResolutionofTwoGenesonO
本文标题:DNA电化学生物传感器的原理与研究进展
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