Center for sensing technologies

Project aim: CleanNanoCatalyze project handles development of advanced materials for photocatalysis of organic compound water pollutants, and designing of sensor system for monitoring of photocatalysis efficiency by measurement of total organic carbon (TOC) content during the process.
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About the project: CleanNanoCatalyze deals with burning topics of today, which is water purification and water quality monitoring. Project tasks include the development of a photocatalysis system, which has a sensor implemented in the construction to monitor the total content of organic matter. The main goal of the project is to obtain a new material based on ZnO, in the form of powder and film, to establish a link between the structural and functional (morphological and electrical) properties and efficiency of photocatalysis in the given process parameters. Environmentally friendly green technologies will be used to obtain the powder shaped materials, which will be further formed into thick films using screen printing. Innovation in the development of the material and the process in general will be searched in combining of additional oxides with ZnO, in order to increase the efficiency of photocatalysis in the visible part of the wavelength spectrum, while adjusting the environmental process parameters in the reactor. Also, testing the photocatalytic efficiency of thick films will be explored since the films themselves represent a better solution in reactor design because powder filtration is not required, and a continuous process may be allowed. For evaluation of the efficiency of photocatalysis, a sensor of organic matter will be developed, which works on the principle of UV absorption. For sensor development, a cheap solution will be designed, through dedicated electronics, and an LED optical system, with signal processing. The entire system will be adapted for sampling from the reactor for the monitoring of organic molecules decomposition in defined time intervals. In addition to the use of photocatalytic materials for water purification, the efficiency of sub-critical water will be examined by members of the project team from the Faculty of Technology Novi Sad. The Faculty of Natural Sciences and Mathematics in Novi Sad and the BioSense Institute will participate in the implementation of activities in the development, characterization and testing of new materials. Extensive research on the content and impact of organic matter (pesticides) will be performed at the Scientific Veterinary Institute “Novi Sad”.
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Research associate in the field of technical/technological sciences -  material science 

Branimir Bajac

Slobodan Birgermajer is research associate in the Center for Sensing Technologies at the BioSense Institute. Mr. Birgermajer received his PhD in microware electronics form the Faculty of Technical Sciences, University of Novi Sad, in 2019. He is currently working on development and application of the sensors in agriculture, food industry, and environmental monitoring, and he is actively involved in many H2020 projects such as ANTARES, IPANEMA SHealty, etc. His main research interest includes microwave passive devices, photonic crystals, microfluidic sensors, and 3D and 4D printing.

Slobodan Birgermajer

Damir Krklješ works as a Senior Researcher at the BioSense institute. He received PhD at the University of Novi Sad, Faculty of Technical Sciences, Novi Sad, Serbia, in 2016. He worked as a research and teaching assistant at the Faculty of Technical Sciences, teaching electronics, sensors and actuators and mechatronics. During that time he participated in many national and international projects, where his main research topics involved robotics (sensorized, two degree of freedom gripper. Sensorized robotic foot for ZMP measurement), force sensors (optical and force sensing resistors) and capacitive angular speed and position sensors, based on printed flexible substrates. Starting in 2013 he moved to the industry, where he worked for a few companies, mostly in a design service area for leading worldwide industrial partners. He was engaged both, as an engineer, and as a head of the department. During that period he was involved in a development of industrial products involving high-end LED lightning digitally controlled power converters, sophisticated devices for water pumps monitoring, power converters, etc. Damir Krklješ published over 30 journal and conference papers.

Damir Krklješ

Dr Branimir Bajac (M), researcher at BioSense institute, received the Ph.D. degrees in 2017 at the University of Novi Sad, Faculty of Technology Novi Sad, Serbia, in field of materials engineering. Author and co-author of more than 30 papers in international journals and conferences and 1 book chapter. His PhD involves research in ceramic multiferroic thin films, but his current scientific interests are in fields of metal-oxide gas sensors, biopolymers and optical gas sensors in smart food packaging. Experienced in various material procesing techniques and film deposition, characterization of their structural and functional properties. In the last 5 years a member of two H2020 projects (Shealthy, PROTEIN), two COST projects, one EUREKA, and two national Serbian project.

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Logo ENG

This project has received funding from Science Fund of Republic of Serbia, under grant agreement no. 7747845.



National

<a href="https://biosens.rs/en/themes/biosensors">Biosensors for toxin and pathogen detection</a>

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<a href="https://biosens.rs/en/themes/materials-science-nanomaterials-silica-nanomaterials-2">Water purification based on functionalized nanomaterials and hybrid membranes</a>

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<a href="https://biosens.rs/en/themes/materials-science-nanomaterials-silica-nanomaterials-2">Removal of iron from well water in irrigation systems</a>

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<a href="https://biosens.rs/en/projects/water-quality-monitoring-system-with-multi-parameter-iot-sensor-nodes-for-proactive-water-resource-management-2019-2022-e13044">Instrument for detection of pollutant and biochemical contamination of water</a>

Environmental monitoring applications

Metal oxides stand out as a landmark in materials science due to their unique properties, widely exploited in basic research and technological applications. Among these materials, TiO2, ZnO, SnO2 and Fe3O4 are prime examples of multifunctionality, since these materials possess suitable electrical resistance combined with optical transparency in the most of visible spectrum. Also, metal oxide-based materials are recognized for outstanding surface related catalytic properties, leaving high impact on gas-sensing performance and broad applications in sensing technologies.
Our research activities are focused on development of various synthesis techniques, such as soft chemistry, nanocasting, as well as hydrothermal and templated methods for fabrication of metal oxide nanomaterials with tailored properties, suitable for application in advanced technologies.

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The following step in the conducted research is to develop functional dispersions of metal oxide nanoparticles in the form of inks and pastes for printing on flexible and rigid substrates, with the final goal to design electrochemical gas sensors. Undertaken approach combines inkjet and screen-printing techniques for fabrication of sensor transducers and sensitive layers based on synthesized metal oxide materials. Integration of such technologies is achieved on flexible platforms such as paper and PET substrates, suitable for agri-food applications.
We also investigate laser post-processing of metal oxide nanomaterials, i.e. the effect of the laser irradiation on the morphology and structure of metal oxides such as crystallinity, porosity and roughness in order to increase and tune their contribution in gas sensing mechanisms.

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<img class="alignnone wp-image-1522 size-full" src="https://api.biosens.rs/wp-content/uploads/2021/06/66.png" alt="" width="755" height="567" />

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Projects:

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III 44006 Development of new information and communication technologies, based on advanced mathematical methods, with applications in medicine, telecommunications, power systems, protection of national heritage and education, Ministry of Education, Science, and Technological Development of the Republic of Serbia.

Metal oxide nanomaterials

CleanNanoCatalyze – In situ pollutants removal from waters by sustainable green nanotechnologie

Centar za senzorske tehnologije

Cilj projekta: CleanNanoCatalyze projekat bavi se razvojem naprednih materijala za fotokatalizu organskih jedinjenja zagađivača vode, i dizajniranjem senzorskog sistema za praćenje efikasnosti fotokatalize merenjem sadržaja ukupnog organskog ugljenika (UOU) tokom procesa.
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O projektu: CleanNanoCatalyze se bavi gorućim temama današnjice, a to je prečišćavanje i ispitivanje kvaliteta vode.  Projektni zadaci obuhvataju razvoj sistema za fotokatalizu, koji u konstrukciji ima implementiran sensor za prećenje ukupnog sadržaja organske materije. Glavni cilj projekta je dobijanje novog materijala na bazi ZnO, u obliku praha i filma, odnosno uspostavljanje veze između strukturnih i funkcionalnih (morfoloških i električnih) svojstava i efikasnosti fotokatalize u datim procesnim parametrima. Za dobijanje praškastog oblika materijala će se koristiti ekološki prihvatljive zelene tehnologije, koji će se dalje formirati u debele filmove pomoću sito štampe. Inovativnost u razvoju materijala i samog procesa uopšte se traži u kombinovanju dodatnih oksida sa ZnO, u cilju povećanja efiksnosti fotokatalize u vidljivom delu spektra talasnih dužina, uz podešavanje parametara procesa okruženja koji vladaju u reaktoru. Takođe, ispitivanje fotokatalitičke efikasnosti debelih filmova će se vršiti iz razloga što sami filmovi predstavljaju bolje rešenje kod projektovanja reaktora jer se time izbegava filtracija praha i omogućava kontinualan proces. Kao merilo efikasnosti fotokatalize biće razvijen senzor organske materije koji radi na principu apsorpcije UV zračenja. U svrhu rada senzora, biće dizajnirano jeftino rešenje, kroz namenski razvijenu elektroniku, i LED optički sistem, uz procesiranje signala. Ceo sistem će biti prilagođen da uzima uzorak iz reaktora i u definisanim vremenskim intervalima prati tok razgradnje organskih molekula. Pored primene fotokatalitičkih materijala za prečišćavanje vode, ispitivaće se i efikasnost sub-kritične vode od strane članova projektnog tima sa Tehnološkog fakulteta Novi Sad. Za realizaciju aktivnosti pri razvoju, karakterizaciji i testiranju materijala učestvovaće Prirodno-matematički fakultet u Novom Sadu i Institut BioSens. Opsežna ispitivanja sadržaja i uticaja organskih materija (pesticida) biće vršena na Naučnom institutu za veterinarstvo „Novi Sad“.

Naučni saradnik u oblasti tehničko- tehnoloških nauka – nauka o materijalima

Slobodan Birgermajer je naučni saradnik u Centru za Senzorske Tehnologije pri Institutu BioSens. Doktorat iz mikrotalasne elektronike odbranio je 2019. godine na Fakultetu Tehničkoih Nauka, Univerziteta u Novom Sadu. Trenutno radi na razvoju i primeni senzora u poljprivredi, prehrambenoj industriji i monitoringu životne sredine, i aktivno je uključena na više međunarodnih projekata iz poziva H2020, kao što su ANTARES, SHEALTY, IPANEMA, i drugi. Takođe, domen istraživanja obuhvata razvoj i fabrikaciju mikrotalasnih pasivnih kola, fotonskih kristala, mikrofludinih senzora, kao i 3D i 4D tehnologiju štampe.

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Damir Krklješ radi kao viši istraživač na institutu BioSense. Doktorirao je na Univerzitetu u Novom Sadu, Fakultet tehničkih nauka, Novi Sad, Srbija, 2016. Radio je kao istraživač i asistent u nastavi na Fakultetu tehničkih nauka, predajući elektroniku, senzore i aktuatore i mehatroniku. Za to vreme učestvovao je u mnogim nacionalnim i međunarodnim projektima, gde su mu glavne teme istraživanja bile robotika (senzorisana hvataljka sa dva stepena slobode. Senzorisano robotsko stopalo za ZMP-metenja), senzori sile (optički i otpornici osetljivi na silu) i kapacitivni senzori ugla i ugaone brzine, na bazi štampane elektronike na fleksibilnim podlogama. Počevši od 2013. prelazi u industriju, gde je radio za nekoliko kompanija, uglavnom u oblasti dizajnerskih usluga za vodeće svetske industrijske partnere. Bio je angažovan i kao inženjer i kao šef odeljenja. U tom periodu bio je uključen u razvoj industrijskih proizvoda koji uključuju vrhunske LED rasvete, digitalno kontrolisane pretvarače snage, sofisticirane uređaje za nadzor pumpi, pretvarače snage itd. Od 2019 radi na BioSens institutu. Damir Krklješ objavio je preko 30 časopisa i konferencijskih radova.

Dr Branimir Bajac (M), stariji istraživač na Institutu Biosens, doktorirao je 2017. godine na Univerzitetu u Novom Sadu, Tehnološki fakultet Novi Sad, Srbija, u oblasti inženjerstva materijala. Autor i koautor više od 30 radova u međunarodnim časopisima i konferencijama i jednog poglavlja o knjizi. Njegov doktorat obuhvata istraživanje keramičkih multiferoičnih tankih filmova, dok mu se trenutna naučna interesovanja nalaze u oblasti metal-oksidnih gasnih senzora, biopolimera i optičkih senzora gasova kod pametne ambalaže za hranu. Poseduje široko iskustvo u raznim tehnikama procesiranja materijala i depoziciji filmova, karakterizaciji njihovih strukturnih i funkcionalnih svojstava. U poslednjih 5 godina član dva H2020 projekta (SHealthy, PROTEIN), dva COST projekta, jednog EUREKA i dva nacionalna projekta republičkog ministarstva.

Fond za nauku logo za oba projekta

Ovaj projekat je finansiran od strane Fonda za Nauku Republike Srbije, pod sporazumom o grantu broj 7747845.


Nacionalni

<a href="https://biosens.rs/themes/biosenzori">Biosenzori za detekciju toksina i patogena</a>

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<a href="https://biosens.rs/themes/silikatni-nanomaterijali-3">Prečišćavanje vode korišćenjem funkcionalizovanih nanomaterijala i hibridnih membrana</a>

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<a href="https://biosens.rs/themes/silikatni-nanomaterijali-3">Uklanjanje gvožđa iz bunarske vode u sistemima za navodnjavanje</a>

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<a href="https://biosens.rs/projects/remote-sensing">Instrument za detekciju polutanata i biohemijske kontaminacije vode</a>

Primene u monitoringu životne sredine

Oksidi metala zauzimaju posebno mesto u nauci o materijalima zbog svojih jedinstvenih osobina, široko iskorišćenih u osnovnim istraživačkim i tehnološkim primenama. Među ovim materijalima, TiO2, ZnO, SnO2 i Fe3O4 su najbolji primeri multifunkcionalnosti, s obzirom na to da ovi materijali poseduju odgovarajuću električnu otpornost udruženu sa optičkom transparentnošću u većem delu vidljivog spektra. Takođe, materijali na bazi oksida metala su prepoznati po izuzetnim površinskim katalitičkim svojstvima, ostavljajući visok uticaj na efikasnost gasnih senzora i široku primenu u senzorskim tehnologijama.

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Naše istraživačke aktivnosti usmerene su ka razvoju različitih tehnika sinteze, poput tehnika meke hemije, nanocasting-a, hidrotermalnih i šablonskih tehnika za proizvodnju metaloksidnih nanomaterijala sa željenim svojstvima, pogodnim za primenu u naprednim tehnologijama.
Naredni korak u istraživanju jeste razvoj funkcionalnih disperzija nanočestica metalnog oksida u obliku mastila i pasta za štampu na fleksibilnim i krutim podlogama, sa krajnjim ciljem projektovanja elektrohemijskih gasnih senzora. Ovaj pristup kombinuje tehnike inkdžet i sitoštampe za proizvodnju komponenti senzora poput transdjusera i osetljivih slojeva na bazi sintetisanih metaloksidnih materijala. Integracija takvih tehnologija postiže se na fleksibilnim platformama kao što su papir i PET podloge, pogodne za poljoprivredno-prehrambene primene.
Takođe ispitujemo i lasersku obradu nanočestica oksida metala, tj. efekat laserskog zračenja na morfologiju i strukturu metalnih oksida, kao što su kristalna struktura, poroznost i hrapavost, u cilju povećanja i podešavanja njihovog doprinosa u mehanizmima detekcije gasova.

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<img class="alignnone wp-image-1522 size-full" src="https://api.biosens.rs/wp-content/uploads/2021/06/66.png" alt="" width="755" height="567" />

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Projekat:

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III 44006 Razvoj novih informaciono-komunikacionih tehnologija, korišćenjem naprednih matematičkih metoda, sa primenama u medicini, telekomunikacijama, energetici, zaštiti nacionalne baštine i obrazovanju, Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije.

CleanNanoCatalyze-In situ uklanjanje polutanata iz vode održivim zelenim nanotehnologijama

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CST