1ST INTERNATIONAL CONFERENCE ON ALUMINA AND OTHER FUNCTIONAL CERAMICS (AOFC-2015) [Type text] 11th to 13th March, 2015 INVITED SPEAKER Professor Bikramjit Basu Laboratory for Biomaterials, Materials Research Center and Interdisciplinary Bio-Engineering Program, Indian Institute of Science (IISc), Bangalore - 560012, India. Phone: (080) 22933256 (O), Fax : (080) 23607316 E-mail: [email protected] Bikramjit Basu (https://sites.google.com/site/bikramiisc/; http://en.wikipedia.org/wiki/Bikramjit_Basu) Dr. Bikramjit Basu is currently an Associate Professor at Materials Research Center, Indian Institute of Science (IISc), Bangalore since May, 2011 and also an Adjunct faculty, Department of Materials Science & Engineering, Indian Institute of Technology Kanpur (IIT K), since July, 2014. Born on September 15, 1973, he obtained his undergraduate and postgraduate degrees, both in Metallurgical Engineering, from National Institute of Technology (NIT), Durgapur and IISc in 1995 and 1997, respectively. He earned his PhD in Ceramics at Katholieke Universiteit Leuven, Belgium in March, 2001. After a brief post-doctoral stint at University of California (UCSB), he joined IIT K in November 2001 as Assistant Professor and promoted to Full Professor in March, 2012. He has authored/coauthored 211 peer-reviewed research papers with 23 papers in Journal of American Ceramic Society. Hindex of his publications is 28 and a total citation is more than 2821 with 400 plus citations per year over last three years (512 citations in 2013, source: www.scopus.com). He edited a book on Biomaterials (2008) and authored two textbooks - one on Structural Ceramics (2011) and the other on Tribology (2011), all published by John Wiley & Sons, Inc. He currently serves on editorial board of 12 SCI journals. Over last one decade, Professor Bikramjit Basu established state-of-art research facilities in the multidisciplinary area of Biomaterials, first at IIT Kanpur and later at IISc, Bangalore. He mentored more than 100 undergraduate students/summer interns, 32 MS/PhD students and 10 young academic colleagues from multiple backgrounds, including Metallurgy/ Materials Science, Ceramic Engineering, Physics, Chemistry, Biological Sciences, and biomedical entrepreneurs. In particular, Dr. Basu has made major contributions in the area of Biomaterials science by bringing in a strong materials engineering perspective to address biologically and clinically relevant problems. His research, encompassing theory and experiments, has led to a better understanding of the complex synergistic interaction between the material properties (electrical conductivity/magnetization) and electric/magnetic field stimulation towards cell functionality modulation in vitro, on the newly developed functional biomaterial surfaces. Overall, his research has direct applications in key areas of human health care, such as bone, neural and cardiovascular tissue engineering. At present, he is leading an interdisciplinary team of 16 active researchers from academic institutions, National R & D labs, clinicians and biomedical entrepreneurs to establish a center for excellence on orthopedic and dental biomaterials. Prof. Basu’s research has uniquely demonstrated that the intermittent delivery of pulse electric stimulation can enhance osteoblast cell proliferation on electroconductive biomaterials or can facilitate differentiation of human mesenchymal stem cells to neural-like cells on compliant polymeric substrates in a conductivity dependent manner in vitro, in the absence of biochemical growth factors. Extending electrical stimulation approach, subsequent research has demonstrated the effect of weak magnetic field towards bactericidal effect and osteogenesis of stem cells, in vitro. The recent results have illustrated the synergistic effect of the magnetic field stimulation and magnetic substrate properties towards enhanced bactericidal property. On the computational aspects, the analytical solution of Poisson-Boltzman equation with Debye-Huckel approximation provided the external field dependent evolution of intercellular, extracellular and membrane stress fields. Based on such theoretical analysis, it has been postulated that bioelectric stress in the order of µPa to mPa can significantly influence cell morphological changes and functionality in vitro. 1ST INTERNATIONAL CONFERENCE ON ALUMINA AND OTHER FUNCTIONAL CERAMICS (AOFC-2015) [Type text] 11th to 13th March, 2015 INVITED SPEAKER Dr. Basu has also led major international multi-institutional research programs on biomaterials. As Principal Investigator of Indo-US science and Technology forum funded Biomaterials Center (2008-2012) as well as UKIndia Education & Research Initiative, UKIERI (2009-2012), he has played a pivotal role towards the success of multiple bilateral projects in the area of orthopedics and cardiovascular tissue engineering. His collaborative research with Brown University on developing PLGA-carbon nanofiber based cardiac patches has received media attention worldwide. One of the most groundbreaking research outcomes of UKIERI collaboration was to establish long term implant stability and faster osseointegration of strontium-substituted glass ceramic implants in rabbit model, in the context of the treatment of osteoporosis. In addition, Dr. Basu has organised major bilateral workshops with Germany and Japan. As part of outreach activities to promote research in the field of Biomaterials, Dr. Basu has started “International conference series on design of biomaterials” (IITK-2006/ IISc2012) as well as workshop on “Advances on biomaterials” (IITK-2007/IISc-2012) and has organized 15 theme sessions in major international conferences. In recognition of contributions to the field of Biomaterials Science and Ceramics, Dr. Basu is declared as the recipient of the Shanti Swarup Bhatnagar award in Engineering Sciences (the highest honor of Indian Science awarded by the Prime Minister of India), 2013 and is elected as a Fellow of National Academy of Sciences, India (NASI-the oldest Science Academy of India) in 2013. Other noteworthy awards include ‘Metallurgist of the year’ award (2010) by Ministry of Steels, Government of India; ‘NASI-SCOPUS Young Scientist Award’, 2010 by Elsevier and Materials Research Society of India (MRSI) Medal, 2011. He also received the prestigious ‘Coble Award for Young Scholars’ (highest recognition for ceramic scientist of 35 years or below) from the American Ceramic Society in 2008. Prior to this, he received Young Scientist awards from the Indian Ceramic Society (2003), Indian National Academy of Engineering (2004) and Indian National Science Academy (2005). Many of his former students currently serve as faculty members in various IITs/NITs in India. In addition to his scholarly contributions, he delivered 10 Plenary/Keynote lectures and more than 100 invited seminars in India, USA, Germany and Japan. ABSTRACT Development of Multifunctional Bioceramics and External Field Stimulated Cell Functionality Modulation: A New Paradigm Bikramjit Basu* Laboratory for Biomaterials, Materials Research Center and Interdisciplinary Bio-Engineering Program, Indian Institute of Science, Bangalore, India. E-mail: [email protected] In the interdisciplinary field of biomaterials, the phenomenological interaction of a biological cell on a material substrate under normal culture conditions is broadly known and researchers use many approaches to tailor surface modulus or wettability in an effort to enhance cell-material interaction. It is also known that theelectrical properties possessed by bone assists the formation/growth, fracture healing as well as controls other metabolic activities [Nature 90, 1217 (1961)]. In this context, the results of a strikingly different approach with the overall objective to develop an integrated approach of understanding the role of material properties together with external field stimulation on cell fate processes in isolation/ combinationwill be presented in this talk.This talk would also address the challenges in designing the synthetic materials to mimic bone-like electrical or piezoelectric properties as well as how to tailor the properties to facilitate better bone cell proliferation or cell differentiation, in general, both in the presence or absence of external electric field stimulation [Biomaterials (2013)]. It will be shown how the intermittent delivery of pulse electric field stimulation can enhance cell growth on electroconductive biomaterial substrates, which are fabricated using a novel processing route (Spark Plasma Sintering). The effectiveness of the above approach will be demonstrated using multiple cell lines (bone cells, neuronal cells, muscle cells, gram positive and gram negative bacteria) as well as on materials with varying stiffness and conductivity properties. This novel 1ST INTERNATIONAL CONFERENCE ON ALUMINA AND OTHER FUNCTIONAL CERAMICS (AOFC-2015) [Type text] 11th to 13th March, 2015 INVITED SPEAKER approach overcomes the conventional biological approach of various biochemical growth factor additions to enhance cell growth/differentiation in vitro. Starting from deterministic modeling to solve a structurally detailed electrical analog of a single cell[J. Applied Physics (2009)], the inherent randomness of the biological system of multiple cells in culture into the cell-external field interaction will be introduced using the stochastic modeling approach [J.Biological Physics (2011)]. The results of the analytical studies provide an estimate of the time of cell interaction as well as the critical window of the current fluctuation for a stimulated biological cell. Extending simulation work to experimental research, a narrow window of electric field stimulation parameters will be shown to facilitate optimal cell growth on biomaterial substrates [J. Biomedical Materials Research (2011)]. Also, the results obtained with biomaterials having a range of electrical conductivity will be presented to demonstrate the synergistic role of the external field stimulation and substrate conductivity towards the modulation of in vitro cell fate processes (proliferation, differentiation)[Royal Society of Chemistry Advances (2013)]. Some theoretical analyses on the estimation of pulse stimulation as well as Maxwell stress field based approach to explain the field strength dependence of cell functionality will also be discussed. Extending the approach of electrical stimulation, subsequent research has demonstrated the effect of weak magnetic field towards bactericidal effect in vitro. The recent results will illustrate the synergistic effect on better bactericidal effect with the application of magnetic field stimulation on magnetic biocomposites. Towards the end, the results of our analytical modeling to predict the external field dependent evolution of bioelectric stress field (Maxwell stress) both at intercellular, extracellular and at cell membrane. It will be shown that much lower stress level of (µPa to mPa) can significantly influence cell morphological changes and functionality in vitro. To summarise, the present talk will demonstrate our recent research efforts, encompassing theory and experiments at the interface of Materials and Biology, that have enabled us to achieve a better understanding of the complex synergistic interaction between the material properties (electrical conductivity/magnetization) and electric/magnetic field stimulation towards cell functionality modulation in vitro, on the newly developed functional biomaterial surfaces. References: 1. Alok Kumar, K. Biswas and Bikramjit Basu; On the Toughness Enhancement in Hydroxyapatite-Based Biocomposites, Acta Materialia 61 [14] (2013) 5198–5215. 2. Greeshma Thrivikraman, Prafulla Kumar Mallik and Bikramjit Basu; Substrate conductivity dependent modulation of cell proliferation and differentiation in vitro; Biomaterials 34 (2013) 7073-7085. 3. Shilpee Jain, Ashutosh Sharma and Bikramjit Basu, Vertical electric field stimulated neuronal cell functionality on porous amorphous carbon electrodes; Biomaterials 34 (2013) 9252-9263. 4. Indu Bajpai, Kantesh Balani and Bikramjit Basu, Spark Plasma Sintered HA-Fe3O4 based Multifunctional Magnetic Biocomposites, J. Am. Cer. Soc. 96 [7] (2013) 2100-2108. 5. A. K. Dubey and B. Basu; Pulsed Electrical Stimulation and Surface Charge Induced Cell Growth on Multistage Spark Plasma Sintered Hydroxyapatite-Barium Titanate Piezobiocomposite; J. Am. Cer. Soc. 97 [2] (2014) 481-489. ---------------------------------------------------------------------------------------------------------------------------
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