BrainMap

Mr. Dan Batalu

PhD

Associate Professor - UNIVERSITATEA NAȚIONALĂ DE ȘTIINȚĂ ȘI TEHNOLOGIE POLITEHNICA BUCUREȘTI

Researcher | Teaching staff | Scientific reviewer

Web of Science ResearcherID: F-5912-2013

Curriculum Vitae (13/07/2023)

Expertise & keywords

Novel technology for implants manufacturing from 3D printable reinforced composite filaments for guided bone regeneration Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2021-1650 2022 - 2024

Role in this project:

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA NAŢIONALĂ DE ŞTIINŢĂ ŞI TEHNOLOGIE POLITEHNICA BUCUREŞTI (RO); UNIVERSITATEA BUCURESTI (RO)

Affiliation:

Project website: http://www.florinmiculescu.ro/bonegapfill/

Abstract:

Compared to the limited market of products destined for bone reconstructive surgery and the high-patient-risks of current approaches, this project is a necessity to solve the absence of 3D products with optimal geometry, internal architecture and mechanical properties for customized compatibility with natural bone and a rapid repair of defects with variable dimensions. The overall goal of the project is to develop and promote a new reproducible and sustainable manufacturing technology for the products fabrication by 3D printing, using as platform the previously implemented technology for the synthesis of hydroxyapatite derived from bovine bone biogenic resources and the project team`s experience in the field. Composite filaments with printable features will be obtained based on natural hydroxyapatite and two polymers, one of which will be of natural origin. Also, superior and adaptable mechanical characteristics will be ensured by reinforcing the ceramic matrix with multi-layer graphene-based materials. Further, the filaments will be used for 3D printing of products with regular and random internal architecture (based on a new STL file developed within the project). Afterwards, the products will be tested as to evaluate their performance as potential bone replacements. In this regard, a patent application will be filed. The proposed topic is new and challenging for the project team, but all the premises are fulfilled through the team`s synergy and previous research experience. The concept and experimental testing of the possibility of embedding naturally derived ceramic particles into a polymer matrix of natural origin were also demonstrated and reported by the team members as viable for achieving the project objectives.

3D printed graphene-based membranes for medical applications Call name: P 3 - SP 3.1 - Proiecte de mobilități, România-Belgia
PN-III-CEI-BIM-PBE-2020-0014 2021 - 2022

Role in this project:

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); University of Mons (BE)

Affiliation:

Project website: https://www.researchgate.net/project/3D-printed-graphene-based-membranes-for-medical-applications

Abstract:

Photopolymerizable inks have received a lot of attention in 3D printing techniques due to its attractive curing kinetics and relatively mild implementation. Currently, UV light is the main illumination source employed to trigger the photoreactions through radical processes, but it can damage sensitive matters such as living cells in the case of prolonged illumination. Although it is saver and has deeper penetration depth in materials than UV light, near-infrared light (NIR) is still underexplored in photopolymerization methodologies. This project aims to design a new NIR-photocurable ink based on surface-functionalized graphene. As an emerging nanofiller, graphene is an efficient platform able to efficiently absorb NIR-light and convert it to photo/heat-activate radically-derived moieties as grafted at the graphene surface. To validate our approach, we propose to investigate natural polymer matrices modified with photopolymerizable moieties, particularly methacrylic gelatin, towards stereolithography process in order to elaborate hemodialysis membranes as models. The goals of this project will be carried out using advanced experimental techniques and conducted by experienced and skilled partners, in an interdisciplinary consortium formed between University Politehnica of Bucharest (Romania) and University of Mons (Belgium).

Algorithm for valorification of entomological and leather residues in multivalent systems for skin tissue regeneration Call name: P 2 - SP 2.1 - Proiect de transfer la operatorul economic
PN-III-P2-2.1-PTE-2019-0655 2020 - 2022

Role in this project:

Coordinating institution: BIOTEHNOS SA

Project partners: BIOTEHNOS SA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEXTILE SI PIELARIE-I.N.C.D.T.P. BUCURESTI SUCURSALA BUCURESTI INSTITUTUL DE CERCETARE PIELARIE - INCALTAMINTE I.C.P.I. (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: https://5-pte.biotehnos.ro/

Abstract:

The project is focused on strengthening of the innovation capacity and development of technologies and products by the implementation of optimized biotechnologies for obtaining structural compounds with healing effect (chitin and keratin) from entomological and skin residues and innovative multicomponent associations (plant extracts and bio- efficient intermetallic materials) with the purpose of obtaining, by 3D-printing technology ,of integrated systems for the delivery of active principles. We propose to obtain at least three prototypes (dressing / polymeric 3D matrix, with integrated active principles; film forming gel and powder), aiming skin regeneration, an essential element in the therapies for chronic skin diseases like „non-healing wounds” / „delayed healing wounds” with high incidence in population. The complex transition of the project’s technological maturity will made gradually, with different stages of initiation TRL4 / TRL5, based on experimental and technological know-how towards the validation of the multicomponents system (keratin / chitin / plant extracts / magnesium boride / 3D matrices), and proof of „in vitro”- „in vivo” intercorrelated efficacy by accelerated skin regeneration models. The innovative character is given by: the biotechnological valorification of the entomological and skin residues; associations of structural compounds / herbal extracts / intermetallic antimicrobial structures; top-of-the-line advanced topical formulations - 3D-printing for skin regeneration, with impact on personalized medicine in Romania. The concept of multifunctionality and the multidisciplinary approach to the biotechnological valorisation of entomological and skin residues opens excellent opportunities for all the partners involved in the project and promotes the implementation of new technologies in the industry in line with the integral exploitation of raw materials

Advanced biodegradable materials based on MgB2 resistant to microbial colonization Call name: P 3 - SP 3.2 - Proiecte ERA.NET - COFUND
COFUND-M-ERA.NET II-BIOMB 2017 - 2021

Role in this project: Partner team leader

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); UNIVERSITATEA BUCURESTI (RO)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: http://infim.ro/project/biomb/

Abstract:

The innovation of this project consists in the evaluation for the first time of the MgB2 potential for biomedical applications, although it is currently produced for superconductivity devices. Expectations are to generate new MgB2-based composite multifunctional biomaterials with antimicrobial/antifouling properties, and an increased biocompatibility at interfaces between the material and the biological media.

The MgB2 powders, coatings and bulks could be used in biodegradable implants or drug delivery systems, handles and surgical tools, catheters, wound dressings and so on. The mechanical and physico-chemical properties of the proposed materials will be investigated by a comprehensive approach, and bioevaluation will include in vitro and in vivo assays. The MgB2 materials are viewed as solutions for space and time- scale controlled variation of the functional properties required for different bio-applications.

Regulation mechanism of magnetic properties in rare-earth-free nanocrystalline MnBi permanent magnets Call name: P 3 - SP 3.1 - Proiecte de mobilități, România-China (bilaterale)
PN-III-P3-3.1-PM-RO-CN-2018-0113 2018 - 2019

Role in this project: Project coordinator

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); Tongji University (CN)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: http://magnet.pub.ro/

Abstract:

Considering the special interest on developing electric motors for electric vehicles (cars, aircraft, drones, ships, etc), there is a great demand of permanent magnets, but free of limited and expensive rare-earth elements. Even though China has the largest rare earths deposit, yet limited, Chinese researchers make great efforts to find alternatives for decreasing or avoiding the use of rare earth elements.

In our project we propose to look for correlations between material-processing-properties to improve the magnetic properties of MnBi, but without using rare earth elements as additions.

Based on theoretical studies it was found that the magnetic field of MnBi can reach high values such as 5.6 T, but the measured magnetic field does not exceed 2 T. From this point of view, it is important to find new fabrication technologies or intelligent/useful additions which may allow to exceed the actual limits.

The Romanian research team together with the Chinese one propose two approaches: (1) processing through unconventional sintering technology of Spark Plasma Sintering, through which very dense and nano-crystalline materials can be obtained, and (2) use of new additions.

From Roman bricks in Romula to modern materials for restoration Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2016-1741 2017 - 2018

Role in this project:

Coordinating institution: UNIVERSITATEA BUCURESTI

Project partners: UNIVERSITATEA BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO)

Project website: http://rombricks.unibuc.ro/

Abstract:

Studies of the ancient bricks and of their fabrication technologies can provide new ideas for restoration of the historic monuments as an immediate application. In many cases brick work used for restoration is not up to expectations, fast degradation being observed as that from Roman Later archaeological site from Celei-Sucidava. Among the reasons is that there were used for restoration of the Secret Fountain the produced the modern bricks of low quality far from excellent properties of the original ones of Late Ancient Period.

A strong argument about the high quality of Roman bricks made in Romula is that they were re-used as building materials for two relevant neighborhood medieval monuments: for walls of a church from 16th century in Caracal city and a monastic complex dated in 17th century from Hotărani village. The project scope is to reproduce the recipe (chemical composition, and the ratio of constitutive components) of the Roman bricks, based on the suitable technology (time and temperatures for heat treatment) that can provide similar characteristics as of the original. The recipe and the technology will be the demonstration model to be developed, tested and validated. The resulted product will be a brick of smaller dimensions, keeping the same geometry.

Reproducing a high quality brick is very important for restoration of Roman archaeological sites from former Roman province of Dacia Inferior (Malvensis) placed in South part of Romania, between Lower Danube and Southern Carpatian Mountains.

Advanced exploitation of calcium carbonate rocks from Buciumi Call name: P 2 - SP 2.1 - Cecuri de inovare
PN-III-P2-2.1-CI-2017-0652 2017 - 2017

Role in this project:

Coordinating institution: PRO CONIC SRL

Project partners: PRO CONIC SRL (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: http://www.proconic.geobm.ro/index.php/proiecte/novumcalc

Abstract:

Study of the roman mortar and of the technologies involved for obtaining it, preserving the specificity of restoration site and of local resources, is of large interest for conservation the national heritage as an immediate application.

Currently, in many cases, the restoration works are not up to expectations, fast degradation being observed, as that from Roman Later archaeological site from Celei-Sucidava. Among the reasons is that the quality of materials used for restoration of the Secret Fountain was far from that of Late Ancient Period.

Through company-university partnership we aim to establish a scientific approach for characterization of the original materials, and to exploit the raw materials from Buciumi increasing their value, based on a mortar recipe very close to the original one.

Our interest is to obtain new long-lasting materials compatible with the original ones, used for various historical objectives, and which will not deteriorate the original materials.

To reproduce the recipe (chemical composition, and the ratio of constitutive components) of a roman mortar is important both for restoration of archaeological sites, spread on the actual area of our country, and for understanding the advanced materials from the Late Ancient Period, that proved to pass the test of time up to our days.

New hard composite ceramic-based materials for cutting tools Call name:
PN3-P3-127.3BM/2016 2016 - 2017

Role in this project: Partner team leader

Coordinating institution: INSTITUTUL NAŢIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA MATERIALELOR - INCDFM BUCUREŞTI

Project partners: INSTITUTUL NAŢIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA MATERIALELOR - INCDFM BUCUREŞTI (RO)

Affiliation: INSTITUTUL NAŢIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA MATERIALELOR - INCDFM BUCUREŞTI (RO)

Project website:

Abstract:

MgB2 based superconducting tapes Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1065 2014 - 2017

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); R & D SPECIAL ALLOYS SRL (RO)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: http://infim.ro/projects/mgb2-based-superconducting-tapes-benzisupra

Abstract:

Nano structured composites in the form of powder-in-tube tapes, based on MgB2 with different additions and targeting improved critical functional parameters such as critical current density and irreversibility fields will be prepared. Innovative solutions are proposed and explored based on processing-properties relationships and vortex pinning details (from advanced relaxation magnetometry measurements). Expectations are to provide a model tape for further implementation and commercialization.

Complex systems with deformable structure for ballistic protection of armored vehicles involved in asymmetric conflicts Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1296 2014 - 2017

Role in this project: Key expert

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); R & D SPECIAL ALLOYS SRL (RO); Academia Tehnica Militara (RO)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: http://www.upb-armprot.webs.com

Abstract:

The recrudescence of terrorist attacks typical of asymmetrical war during the past years has compelled the accelerated development of protection structures and systems destined for both light vehicles and individual equipments. The aim of the project is the accomplishment of multifunctional complex materials with deformable structure and controlled characteristics for special applications, by using advanced techniques allowing structural molding and projecting the properties of the material (in concordance with the theme areas 4.2, 4.3 and 4.4 of FP 7) as well as the integration of the classical processing technologies with the non-classical ones which led to the occurrence of integrated and flexible technological processes for industrial applications – sectorial and intersectorial – thus favoritizing the development of new technologies, processing techniques and production processes in the field of the defense industry.

The main objective of the research project consists of establishing the optimal technology for attaining a complex system with deformable structure type „sandwich”: Ti72Si28 alloy-Maraging steel foam-Ti82Si18 alloy,destined for ballistic protection.The ARMPROT project is carried on by means of highly complex research and technological development activities including industrial and technological development research as well technology transfer activities and certification of investigated products which are carried on by collaboration within a consortium that is representative at a national level for the specific field of top technologies. As far as the technical measurable objectives go the aim is to establish the processing conditions and to elaborate the optimal technology for the achievement of a complex system with deformable structure type ”sandwich”: Ti72Si28 alloy-Maraging steel foam-Ti82Si18 alloy, for ballistic protection with small or medium caliber weaponry, with the following framing of the values of the properties:-Maraging steel foam with a high elastic limit (1800MPa, hardness of around 320 HB, density of 3.9-4.4g/cm3, porosity higher than 50%,low tendency of hardening when deformed N≈ 0,02 and a high capacity of absorbing kinetic energy able to ensure its dissipation in a high volume of material;extra-hard plates made out of Ti72Si28 alloy and Ti82Si18 alloy respectively (density of the TiSi system:4.2-5.3g/cm3,hardness 1300-1700 HV30, depending of the majoritary intermetallic compound which forms:Ti5Si3 or Ti3Si respectively) which are formed directly on the sides of the foam strip from precipitation hardening of Maraging stainless made by SHS.

The application of innovative technologies–SHS and Horizontal Continuous Casting of metal foams in the form of a steel strips of Maraging precipitation hardening steels-which will allow the accomplishment of the stratified material with deformable structure type Ti72Si28 alloy-Maraging steel foam-Ti82Si18 alloy, represents a nationally premiere.The estimated results of the project shall consist of:-the realization of the multilayered complex system with deformable structure destined for ballistic protection, in which the exterior extrahard layers shall be attained by means of the SHS technique applied to powdery Ti72Si28 and Ti82Si18 alloys, and the interior layer(deformable layer)shall be realized with Maraging steel foam (with modified composition–for the increase of stability at warmth) by an innovative procedure of „foamy continuous casting”. The project shall be completed with:-realization of experimental model of hybrid material with deformable structure for ballistic protection;-realization of prototype batch of the complex system with„sandwich” type structure:Ti72Si28 alloy-Maraging steel foam-Ti82Si18 alloy;-elaboration of technical-economical documentation for the prototype batch;-optimized technologyof the prototype batch;-elaboration of final technical documentation;-patenting of technology/experimental model;-dissemination.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects