@article{MTMT:32699595,
	title = {Dynamic Features of Herd Immunity: Similarities in Age-Specific Anti-Measles Seroprevalence Data between Two Countries of Different Epidemiological History},
	url = {https://m2.mtmt.hu/api/publication/32699595},
	author = {Böröcz, Katalin and Samardžić, Senka and Drenjančević, Ines and Markovics, Ákos and Berki, Tímea and Németh, Péter},
	doi = {10.3390/jcm11041145},
	journal-iso = {J CLIN MED},
	journal = {JOURNAL OF CLINICAL MEDICINE},
	volume = {11},
	unique-id = {32699595},
	year = {2022},
	eissn = {2077-0383},
	orcid-numbers = {Böröcz, Katalin/0000-0002-6126-1840; Drenjančević, Ines/0000-0003-4964-7721; Berki, Tímea/0000-0002-0134-8127}
}

@article{MTMT:31996319,
	title = {Imported Infections Versus Herd Immunity Gaps; A Didactic Demonstration of Compartment Models Through the Example of a Minor Measles Outbreak in Hungary},
	url = {https://m2.mtmt.hu/api/publication/31996319},
	author = {Böröcz, Katalin and Markovics, Ákos and Csizmadia, Zsuzsanna and Najbauer, József and Berki, Tímea and Németh, Péter},
	journal-iso = {SOUTHEAST EUR MED J},
	journal = {SOUTHEASTERN EUROPEAN MEDICAL JOURNAL},
	volume = {5},
	unique-id = {31996319},
	issn = {2459-9484},
	year = {2021},
	pages = {1-16},
	orcid-numbers = {Berki, Tímea/0000-0002-0134-8127}
}

@article{MTMT:31164687,
	title = {Application of a fast and cost-effective ‘three-in-one’ MMR ELISA as a tool for surveying anti-MMR humoral immunity: the Hungarian experience},
	url = {https://m2.mtmt.hu/api/publication/31164687},
	author = {Böröcz, Katalin and Csizmadia, Zsuzsanna and Markovics, Ákos and Borbásné Farkas, Kornélia and Najbauer, József and Berki, Tímea and Németh, Péter},
	doi = {10.1017/S0950268819002280},
	journal-iso = {EPIDEMIOL INFECT},
	journal = {EPIDEMIOLOGY AND INFECTION},
	volume = {148},
	unique-id = {31164687},
	issn = {0950-2688},
	year = {2020},
	eissn = {1469-4409},
	orcid-numbers = {Böröcz, Katalin/0000-0002-6126-1840; Borbásné Farkas, Kornélia/0000-0002-5349-6527; Berki, Tímea/0000-0002-0134-8127}
}

@article{MTMT:3401786,
	title = {Development of a robust and standardized immunoserological assay for detection of anti-measles IgG antibodies in human sera.},
	url = {https://m2.mtmt.hu/api/publication/3401786},
	author = {Böröcz, Katalin and Csizmadia, Zsuzsanna and Markovics, Ákos and Meszaros, V and Borbásné Farkas, Kornélia and Telek, Vivien and Varga, V and Maloba, GO and Bodó, Kornélia and Najbauer, József and Berki, Tímea and Németh, Péter},
	doi = {10.1016/j.jim.2018.07.009},
	journal-iso = {J IMMUNOL METHODS},
	journal = {JOURNAL OF IMMUNOLOGICAL METHODS},
	volume = {464},
	unique-id = {3401786},
	issn = {0022-1759},
	abstract = {Because of measles outbreaks there is a need for continuous monitoring of immunological protection against infection at population level. For such monitoring to be feasible, a cost-effective, reliable and high-throughput assay is necessary. Herein we describe an ELISA protocol for assessment of anti-measles antibody levels in human serum samples that fulfills the above criteria and is easily adaptable by various laboratories. A serum bank of anonymous patient sera was established (N>3000 samples). Sera were grouped based on measles immunization schedules and/or changes in vaccine components since the introduction of the first measles vaccine in Hungary in 1969. Newly designed ELISA was performed by using Siemens BEP 2000 Advance System and data were confirmed using commercially available kits. Our indirect ELISA was compared to indirect immunfluoresence and to anti-measles nucleocapsid (N) monoclonal antibody-based sandwich ELISA. The results obtained are in high agreement with the confirmatory methods, and reflect measles vaccination history in Hungary ranging from pre-vaccination era, through the initial period of measles vaccination, to present. Based on measurement of 1985 sera, the highest ratio of low/questionable antibody level samples was detected in cluster '1978-1987' (~25.4%), followed by cluster '1969-1977' (~15.4%).Our assay is suitable for assessment of anti-measles immunity in a large cohort of subjects. The assay is cost-effective, allows high-throughput screening and has superior signal-to-noise ratio. This assay can serve as a first step in assessment of the effectiveness of all three components of the MMR vaccine.},
	keywords = {IGG; Immunity; ELISA; measles; assay development},
	year = {2019},
	eissn = {1872-7905},
	pages = {1-8},
	orcid-numbers = {Borbásné Farkas, Kornélia/0000-0002-5349-6527; Berki, Tímea/0000-0002-0134-8127}
}

@article{MTMT:2777546,
	title = {Optical Ammonia Sensors for Environmental Applications},
	url = {https://m2.mtmt.hu/api/publication/2777546},
	author = {Markovics, Ákos and Kovács, Barna},
	doi = {10.1080/00032719.2013.843188},
	journal-iso = {ANAL LETT},
	journal = {ANALYTICAL LETTERS},
	volume = {47},
	unique-id = {2777546},
	issn = {0003-2719},
	abstract = {Triphenyl-methane based indicators bromophenol blue and bromocresol green were immobilized in ormosil sol-gel films prepared from phenyl-triethoxysilane in order to prepare colorimetric ammonia sensors. The sensing layers contained different molar ratios of the indicators, in this way-depending on the pKa values of the indicators-sensors with tailored dynamic ranges could be fabricated. Adsorption based immobilization was also used for the fabrication of chemical layers immersing anodized aluminum films in aqueous solutions of the indicators. Simultaneous immobilization of the indicators was considerably effortful on the anodized aluminum film, compared with the sol-gel film; therefore, the significant temperature dependency of the sensor response was used to shift the dynamic range. The effect of an ionic liquid additive was also investigated to increase the lifetime of these sensors. All sensors were tested spectrophotometrically, although a simple reflection based read-out device was also constructed using two light emitting diodes as light sources and two photodiodes as detectors. The device did not produce a concentration dependent signal but gave a digital yes or no (1 or 0) indicating that ammonia concentrations had reached a preset level. © 2014 Copyright Taylor and Francis Group, LLC.},
	keywords = {Optical ammonia sensor; Tunable sensor; Sensor read-out; Anodized aluminum},
	year = {2014},
	eissn = {1532-236X},
	pages = {465-477}
}

@mastersthesis{MTMT:33771485,
	title = {Új típusú rétegek optikai ammónia érzékelőkhöz},
	url = {https://m2.mtmt.hu/api/publication/33771485},
	author = {Markovics, Ákos},
	unique-id = {33771485},
	year = {2013}
}

@article{MTMT:2241729,
	title = {Fabrication of optical chemical ammonia sensors using anodized alumina supports and sol–gel method},
	url = {https://m2.mtmt.hu/api/publication/2241729},
	author = {Markovics, Ákos and Kovács, Barna},
	doi = {10.1016/j.talanta.2013.01.054},
	journal-iso = {TALANTA},
	journal = {TALANTA},
	volume = {109},
	unique-id = {2241729},
	issn = {0039-9140},
	abstract = {In this comparative study, the fabrication and the sensing properties of various reflectometric optical ammonia gas sensors are described. In the first set of experiments the role of the support material was investigated on four different sensor membranes. Two of them were prepared by the adsorption of bromocresol green indicator on anodized aluminum plates. The applied anodizing voltages were 12 V and 24 V, which resulted in different dynamic ranges and response times for gaseous ammonia. The sol–gel method was used for the preparation of the other batch of sensors. These layers were coated on anodized aluminum plates (24 V) and on standard microscope cover glasses. In spite of the identical sensing chemistry, slightly different response times were measured merely because of the aluminum surface porosity. Gas molecules can remain entrapped in the pores, which results in delayed recovery time. On the other hand, the porous oxide film provides excellent adhesion, making the anodized aluminum an attractive support for the sol–gel layer.},
	keywords = {sol-gel; Ormosil; Anodized alumina; Optical ammonia sensor},
	year = {2013},
	eissn = {1873-3573},
	pages = {101-106}
}

@inproceedings{MTMT:1748381,
	title = {Measurement of CO2 using refractometric fiber optic sensors. 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10},
	url = {https://m2.mtmt.hu/api/publication/1748381},
	author = {Gouveia, C and Markovics, Ákos and Baptista, J M and Kovács, Barna and Jorge, P A S},
	booktitle = {Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10},
	unique-id = {1748381},
	abstract = {An indicator free optical fiber sensor for determination of carbon dioxide is presented. The sensing layer is based on the acid-basic equilibrium of phenol and of its derivative p-nitro-phenol that, in the presence of CO2, are prone to protonation introducing refractive index changes. The new sensitive layer is characterized and tested in different refractometric fiber optic sensor configurations. Using a fiber based interferometric setup, a CO 2 dependent refractive index change of ∼0.05 RIU is observed, in the 10%-90% CO2 concentration range, demonstrating the membrane viability. Preliminary results are presented for an all-fiber LPG-based carbon dioxide sensor.},
	keywords = {FIBERS; PHENOLS; sensors; Carbon Dioxide; carbon fibers; Concentration ranges; refractometry; Refractive index; Materials science; Optical fibers; Light refraction; Fiber optic sensors; Sensing layers; Optic sensor; Carbon dioxide sensors; All fiber; Optical fiber sensor; LPG-Long-period grating; Semiconductor quantum wells; Refractometers; Atmospheric composition; Sensitive layers; Refractive index changes},
	year = {2010},
	pages = {169-173}
}

@article{MTMT:1608446,
	title = {Fiber-optic detection of chlorine in water},
	url = {https://m2.mtmt.hu/api/publication/1608446},
	author = {Kasik, Ivan and Mrazek, Jan and Podrazky, Ondrej and Seidl, Miroslav and Aubrecht, Jan and Tobiska, Petr and Pospisilova, Marie and Matejec, Vlastimil and Kovács, Barna and Markovics, Ákos and Szili, Mónika},
	doi = {10.1016/j.snb.2008.10.064},
	journal-iso = {SENSOR ACTUAT B CHEM},
	journal = {SENSORS AND ACTUATORS B-CHEMICAL},
	volume = {139},
	unique-id = {1608446},
	issn = {0925-4005},
	abstract = {Monitoring of the chlorine content represents important issue of the control of water quality. Crucial points of this control are detection of low chlorine concentrations around 1 ppm and reversibility of chemical reactions between strong oxidation agent, chlorine and opto-chemical transducers used for the detection. This paper deals with fiber-optic detection of chlorine in water by using a commercially available absorption transducer o-phenylenediamine (o-PDA) electrochemically immobilized onto fiber-optic substrates coated with Indium-Tin-Oxide (ITO). Sensitive layers of the absorption transducer o-PDA were prepared electrochemically by cyclic voltammetry. The layers were applied onto declad segments of polymer-clad silica fibers coated with a thin conductive ITO layer making the electrochemical deposition possible. Prepared detection elements were exposed to aqueous solutions of chlorine of various concentrations and spectral response and time response curves were measured. Oxidized sensitive layers were regenerated chemically by using a solution of sodium thiosulfate. A limit of detection of chlorine in water of about 0.14 ppm has been achieved, making the detection of chlorine in water within the hygienic limits feasible.},
	keywords = {chlorine; Optical fibers; o-Phenylenediamine; Optical detection},
	year = {2009},
	eissn = {0925-4005},
	pages = {139-142}
}

@article{MTMT:1295373,
	title = {Reflection-based sensor for gaseous ammonia},
	url = {https://m2.mtmt.hu/api/publication/1295373},
	author = {Markovics, Ákos and Nagy, Géza and Kovács, Barna},
	doi = {10.1016/j.snb.2009.02.075},
	journal-iso = {SENSOR ACTUAT B CHEM},
	journal = {SENSORS AND ACTUATORS B-CHEMICAL},
	volume = {139},
	unique-id = {1295373},
	issn = {0925-4005},
	abstract = {In this Work we describe the fabrication of an ammonia sensor on anodized aluminum substrate. Pure aluminum was oxidized with direct Current (DC) method at different voltages to obtain oxide layers with different porosity. The adsorption capacities of the differently prepared layers were measured. Bromophenol blue (BPB), bromocresol green (BCG) and bromocresol Purple (BCP) indicators were immobilized by simple adsorption. Sensor properties, Such as detection limit (100 ppb, 5 and 50 ppm for BPB, BCG and BCP, respectively), dynamic range (0-80, 10-90, 100-600 ppm for BPB, BCG and BCP, respectively), response time and reversibility were investigated. We found, that sensors prepared on different oxide layers with the same indicator, show different signal change in the presence of the same concentration of ammonia gas. Sensors with optimal performance were selected for solving different tasks. (C) 2009 Elsevier B.V. All rights reserved.},
	year = {2009},
	eissn = {0925-4005},
	pages = {252-257}
}