Visual detection of myoglobin via G-quadruplex DNAzyme functionalized gold nanoparticles-based colorimetric biosensor

Abstract Since myoglobin plays a major role in the diagnosis of acute myocardial infarction (AMI), monitoring of myoglobin in point-of-care is fundamental. Here, a novel colorimetric assay for myoglobin detection was developed based on hemin/G-quadruplex DNAzyme functionalized gold nanoparticles (AuNPs). In the presence of myoglobin, the anti-myoglobin antibody, which was modified on the surface of polystyrene microplate, could first capture the target myoglobin. Then the captured target could further bind to DNA1 probe which contained the aptamer sequence through aptamers/myoglobin interaction. Next, as the DNA2 probe modified AuNPs were introduced, DNA2 probe modified AuNPs could hybridize with the captured DNA1 probe. Subsequently, DNA2 probe which was modified on the AuNPs could fold into a G-quadruplex structure and bind to hemin, and then catalyze the oxidation of colorless ABTS 2− to green ABTS + by H 2 O 2 . Consequently, the relationship between the concentration of myoglobin and the absorbance was established. Due to AuNPs amplification, the myoglobin concentration as low as 2.5 nM could be detected, which was lower than clinical cutoff for myoglobin in healthy patients. This assay also showed high selectivity for myoglobin and was used for the detection of myoglobin in the human serum samples. This work may provide a simple but effective tool for early diagnosis of AMI in the world, especially in developing countries.

[1]  Andrey V Lisitsa,et al.  Highly sensitive detection of human cardiac myoglobin using a reverse sandwich immunoassay with a gold nanoparticle-enhanced surface plasmon resonance biosensor. , 2013, Analytica chimica acta.

[2]  Aninda J. Bhattacharyya,et al.  Employing denaturation for rapid electrochemical detection of myoglobin using TiO2 nanotubes. , 2013, Journal of materials chemistry. B.

[3]  Kemin Wang,et al.  Sensitive point-of-care monitoring of cardiac biomarker myoglobin using aptamer and ubiquitous personal glucose meter. , 2015, Biosensors & bioelectronics.

[4]  Daniela Rhodes,et al.  G-quadruplex structures: in vivo evidence and function. , 2009, Trends in cell biology.

[5]  Xianfeng Zhang,et al.  Iminodiacetic acid-functionalized gold nanoparticles for optical sensing of myoglobin via Cu2+ coordination. , 2011, Langmuir : the ACS journal of surfaces and colloids.

[6]  L. Ling,et al.  Colorimetric detection of cholesterol with G-quadruplex-based DNAzymes and ABTS2-. , 2012, Analytica Chimica Acta.

[7]  A. Wu,et al.  Immunoassays for serum and urine myoglobin: myoglobin clearance assessed as a risk factor for acute renal failure. , 1994, Clinical chemistry.

[8]  Yee-Siew Choong,et al.  Development of an Antigen-DNAzyme Based Probe for a Direct Antibody-Antigen Assay Using the Intrinsic DNAzyme Activity of a Daunomycin Aptamer , 2013, Sensors.

[9]  Feng Zhang,et al.  Evaluation of a modified lateral flow immunoassay for detection of high-sensitivity cardiac troponin I and myoglobin. , 2013, Biosensors & bioelectronics.

[10]  H. Park,et al.  An ultrasensitive DNAzyme-based colorimetric strategy for nucleic acid detection. , 2009, Chemical communications.

[11]  F. T. Moreira,et al.  Myoglobin-biomimetic electroactive materials made by surface molecular imprinting on silica beads and their use as ionophores in polymeric membranes for potentiometric transduction. , 2011, Biosensors & bioelectronics.

[12]  Itamar Willner,et al.  DNAzyme-Functionalized Au Nanoparticles for the Amplified Detection of DNA or Telomerase Activity , 2004 .

[13]  G. Frens Controlled nucleation for the regulation of the particle size in monodisperse gold solutions , 1973 .

[14]  S. Aldous,et al.  Cardiac biomarkers in acute myocardial infarction. , 2013, International journal of cardiology.

[15]  Adil Denizli,et al.  Microcontact imprinted surface plasmon resonance sensor for myoglobin detection. , 2013, Materials science & engineering. C, Materials for biological applications.

[16]  Kemin Wang,et al.  Electrochemical biosensors for detection of point mutation based on surface ligation reaction and oligonucleotides modified gold nanoparticles. , 2011, Analytica chimica acta.

[17]  Devendra Kumar,et al.  Electrochemical impedance spectroscopy characterization of mercaptopropionic acid capped ZnS nanocrystal based bioelectrode for the detection of the cardiac biomarker--myoglobin. , 2012, Bioelectrochemistry.

[18]  M. Goreti F. Sales,et al.  Electrochemical biosensor based on biomimetic material for myoglobin detection , 2013 .

[19]  George C Schatz,et al.  What controls the melting properties of DNA-linked gold nanoparticle assemblies? , 2000, Journal of the American Chemical Society.

[20]  Yingfu Li,et al.  DNA-enhanced peroxidase activity of a DNA-aptamer-hemin complex. , 1998, Chemistry & biology.

[21]  Tina M. Battaglia,et al.  Quantitative measurement of cardiac markers in undiluted serum. , 2007, Analytical chemistry.

[22]  J. Lakowicz,et al.  Myoglobin immunoassay utilizing directional surface plasmon-coupled emission. , 2004, Analytical chemistry.

[23]  S. Yin,et al.  Detection of 4-hydroxy-2-nonenal adducts of turkey and chicken myoglobins using mass spectrometry. , 2010 .

[24]  A. Cass,et al.  Smart plastic antibody material (SPAM) tailored on disposable screen printed electrodes for protein recognition: application to myoglobin detection. , 2013, Biosensors & bioelectronics.

[25]  Minhee Yun,et al.  Highly sensitive single polyaniline nanowire biosensor for the detection of immunoglobulin G and myoglobin. , 2011, Biosensors & bioelectronics.

[26]  Guonan Chen,et al.  Amplified colorimetric detection of mercuric ions through autonomous assembly of G-quadruplex DNAzyme nanowires. , 2014, Biosensors & bioelectronics.

[27]  G. Frens Controlled Nucleation for the Regulation of the Particle Size in Monodisperse Gold Suspensions , 1973 .

[28]  A. Parente,et al.  Myoglobin as marker in meat adulteration: a UPLC method for determining the presence of pork meat in raw beef burger. , 2013, Food chemistry.

[29]  J. Huppert,et al.  Structure, location and interactions of G‐quadruplexes , 2010, The FEBS journal.

[30]  Kemin Wang,et al.  Screening of DNA aptamers against myoglobin using a positive and negative selection units integrated microfluidic chip and its biosensing application. , 2014, Analytical chemistry.