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| 1 | Corrosion behavior of as-cast Mg–8Li–3Al+xCe alloy in 3.5wt% NaCl solution显示文摘Mg–8Li–3Al+xCe alloys(x = 0.5wt%, 1.0wt%, and 1.5wt%) were prepared through a casting route in an electric resistance furnace under a controlled atmosphere. The cast alloys were characterized by X-ray diffraction, optical microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The corrosion behavior of the as-cast Mg–8Li–3Al+xCe alloys were studied under salt spray tests in 3.5wt% NaC l solution at 35°C, in accordance with standard ASTM B–117, in conjunction with potentiodynamic polarization(PDP) tests. The results show that the addition of Ce to Mg–8Li–3Al(LA83) alloy results in the formation of Al_2Ce intermetallic phase, refines both the α-Mg phase and the Mg_(17)Al_(12) intermetallic phase, and then increases the microhardness of the alloys. The results of PDP and salt spray tests reveal that an increase in Ce content to 1.5wt% decreases the corrosion rate. The best corrosion resistance is observed for the LA83 alloy sample with 1.0wt% Ce. | S.Manivannan P.Dinesh R.Mahemaa Nandhakumaran MariyaPillai S.P.Kumaresh Babu Srinivasan Sundarrajan | 2016 | International Journal of Minerals,Metallurgy and Materials2016，23，10： | 5 |
| 2 | 功能化纤维素:PET纤维沸石分子筛复合材料对神经毒剂的解毒性研究(英文)显示文摘Presently activated carbon is used as an adsorptive material for chemical and biological warfare agents. It possess excellent surface properties such as large surface area, fire-resistance and plenty availability, but has disadvantages such as its heavy weight, low breathability (after adsorption of moisture) and disposal. In this paper, we propose to utilize novel electrospun polymeric nanostructures having zeolites as catalyst materials. In this respective, the electrospun polymer nanofibers would serve as the best possible substitutes to activated carbon based protective clothing applications. This is the first in the literature that reports the integration of these types of catalysts with nanofiberous membranes. Electrospinning of cellulose/polyethylene terephthalate (PET) blend nanofibers has been carried out. Zeolite catalysts (Linde Type A and Mordenite) for the detoxification of nerve agent stimulant-paraoxon, were prepared due to their relative simplicity of synthesis. The catalysts were then coated onto nanofiber membranes and their morphology was confirmed using SEM. This is the first report on the coating of nanofibers with zeolites and their successful demonstration against nerve agent stimulant. The UV absorption spectra clearly show the detoxification ability of the functionalized fibers and their potential to be used in textiles for protection and decontamination. | Agarwal Satya R Sundarrajan Subramanian Ramakrishna Seeram | 2012 | 无机材料学报2012，27，3： | 2 |
| 3 | Cardiogenic differentiation of mesenchymal stem cells on elastomeric poly (glycerol sebacate)/collagen core/shell fibers显示文摘AIM: To facilitate engineering of suitable biomaterials to meet the challenges associated with myocardial infarction. METHODS: Poly (glycerol sebacate)/collagen (PGS/ collagen) core/shell fibers were fabricated by core/ shell electrospinning technique, with core as PGS and shell as collagen polymer; and the scaffolds were characterized by scanning electron microscope (SEM), fourier transform infrared spectroscopy (FTIR), contact angle and tensile testing for cardiac tissue engineering. Collagen nanofibers were also fabricated by electrospinning for comparison with core/shell fibers. Studies on cell-scaffold interaction were carriedout using cardiac cells and mesenchymal stem cells (MSCs) co-culture system with cardiac cells and MSCs separately serving as positive and negative controls respectively. The co-culture system was characterized for cell proliferation and differentiation of MSCs into cardiomyogenic lineage in the co-culture environment using dual immunocytochemistry. The co-culture cells were stained with cardiac specific marker proteins like actinin and troponin and MSC specific marker protein CD 105 for proving the cardiogenic differentiation of MSCs. Further the morphology of cells was analyzed using SEM.RESULTS: PGS/collagen core/shell fibers, core is PGS polymer having an elastic modulus related to that of cardiac fibers and shell as collagen, providing natural environment for cellular activities like cell adhesion, proliferation and differentiation. SEM micrographs of electrospun fibrous scaffolds revealed porous, beadless, uniform fibers with a fiber diameter in the range of 380 ± 77 nm and 1192 ± 277 nm for collagen fibers and PGS/collagen core/shell fibers respectively. The obtained PGS/collagen core/shell fibrous scaffolds were hydrophilic having a water contact angle of 17.9 ± 4.6° compared to collagen nanofibers which had a contact angle value of 30 ± 3.2°. The PGS/collagen core/shell fibers had mechanical properties comparable to that of native heart muscle with a young's modulus of 4.24 ± 0.7 MPa, while that of collagen nanofibers was comparatively higher around 30.11 ± 1.68 MPa. FTIR spectrum was performed to confirm the functional groups present in the electrospun scaffolds. Amide Ⅰ and amide Ⅱ of collagen were detected at 1638.95 cm -1 and 1551.64 cm -1 in the electrospun collagen fibers and at 1646.22 cm -1 and 1540.73 cm -1 for PGS/collagen core/shell fibers respectively. Cell culture studies performed using MSCs and cardiac cells co-culture environment, indicated that the cellproliferation significantly increased on PGS/collagen core/shell scaffolds compared to collagen fibers and the cardiac marker proteins actinin and troponin were expressed more on PGS/collagen core/shell scaffolds compared to collagen fibers alone. Dual immunofluorescent staining was performed to further confirm the cardiogenic differentiation of MSCs by employing MSC specific marker protein, CD 105 and cardiac specific marker protein, actinin. SEM observations of cardiac cells showed normal morphology on PGS/collagen fibers and providing adequate tensile strength for the regeneration of myocardial infarction. CONCLUSION: Combination of PGS/collagen fibers and cardiac cells/MSCs co-culture system providing natural microenvironments to improve cell survival and differentiation, could bring cardiac tissue engineering to clinical application. | Rajeswari Ravichandran Jayarama Reddy Venugopal Subramanian Sundarrajan Shayanti Mukherjee Seeram Ramakrishna | 2013 | World Journal of Cardiology2013，5，3： | 2 |
| 4 | Studies on thermally grown oxide as an interface between plasma-sprayed coatings and a nickel-based superalloy substrate显示文摘A thermally grown oxide layer formed by hot corrosion was investigated as an interface between plasma-sprayed coatings and a nickel-based superalloy substrate. The hot corrosion mechanism of NiCr–Cr_2O_3 and Al_2O_3–40wt% TiO_2(A40T) plasma coated Inconel 617 was evaluated. The experiments were carried out at 1000°C using a combination of Na_2SO_4, NaCl, and V_2O_5 salts to simulate the conditions of a gas turbine in a marine environment. The hot corrosion results revealed the spallation and dissolution of oxides upon prolonged exposure. Optical images and scanning electron micrographs of the exposed samples revealed the formation of oxide scale and provided details of its morphology in NiCr–Cr_2O_3 coated samples. Microstructure characterization of A40T coatings demonstrated a thermally grown oxide(TGO) layer at 1000°C. Increasing the thickness of the TGO layer decreased the corrosion resistance. The elemental analysis and image mapping revealed the migration of active elements from the substrate and coatings toward the corrosive environment. | Adam Khan Mahaboob Basha Sundarrajan Srinivasan Natarajan Srinivasan | 2017 | International Journal of Minerals,Metallurgy and Materials2017，24，6： | 2 |
| 5 | Fabrication of nanocomposite membranes from nanofibers and nanoparticles for protection against chemical warfare stimulants 显示文摘 | SUNDARRAJAN S RAMAKRISHNA S | 2007 | J Mater Sci2007，42，： | 1 |
| 6 | Electrospun nanofibers for pharmaceutical and medical applications 显示文摘 | R Sridhar JR Venugopal S Sundarrajan | 2011 | Journal of drug delivery science and technology2011，21，6： | 1 |
| 7 | Association between estrogen receptor-β gene polymorphisms and ovulatory dysfunctions in patients with menstrual disorders 显示文摘 | Sundarrajan C Liao WX Roy AC | 2001 | J Clin Endocrinol Metab2001，86，1： | 1 |
| 8 | Role of light andheavy minerals on natural radioactivity level of high background radi-ation area, Kerala, India显示文摘 | Ramasamy V Sundarrajan M Suresh G | 2014 | Appl Radiat Isot2014，85，： | 1 |
| 9 | Thermal expansion behaviour of particulate metal-matrix composites显示文摘 | Elomari S Skibo M D Sundarrajan A | | 0，，3： | 1 |
| 10 | Ex- pression of cardiac proteins in neonatal cardiomyocytes on PGS/fibrinogen core/shell substrate for Cardiac tfssue engi- neering 显示文摘 | Ravichandran R Venugopal JR Sundarrajan S | 2013 | Int J Cardiol2013，167，4： | 1 |
| 11 | Synthesis and characterization of saturated and unsaturated polysulfide and their thermal degradation processes investigated by flash pyrolysis-gas chromatogrphy/mass sepectrometry显示文摘 | Sundarrajan S Surianaratanan M | 2005 | Joumal of Polymer Science Part A:Polymer Chemistry2005，43，3： | 1 |
| 12 | Influence of Electro- spun Fiber Size On the Separation Efficiency of Thin Film Nanofiltration Composite Membrane显示文摘 | Kaur S Sundarrajan S Rana D | 2012 | Journal of Membrane Science2012，，392： | 1 |
| 13 | Buckled structures and 5-azacytidine enhance cardiogenic differentiation of adipose-derived stem cells显示文摘 | Rajeswari Ravichandran Jayarama Reddy Venugopal Martina Mueller Subramanian Sundarrajan Shayanti Mukherjee Damian Pliska Erich Wintermantel Seeram Ramakrishna | 2013 | Nanomedicine2013，，12： | 1 |
| 14 | Hot pressing of electrospun membrane and its influence onseparation per- formance on thin film composite nanofiltrtion membrane显示文摘 | Kaur S Barhate R Sundarrajan S | 2011 | Desalination2011，279，： | 1 |
| 15 | 显示文摘 | Ravichandran R Venugopal J R Sundarrajan S | 2013 | J Ma- ter Sci Mater Med2013，24，12： | 1 |
| 16 | Thermal expansion behavior of particulate metal matrix composites 显示文摘 | Elomari S skibo M D Sundarrajan A et ol | 1998 | Composites Science and Technology1998，58，3： | 1 |
| 17 | Thermal expansion behaviour of particulate metal matrix composites显示文摘 | Elomari S Skibo M D Sundarrajan A Richards H | 1998 | Composites Science and Technology1998，58，34： | 1 |
| 18 | Click chemistry approach for fabricating PVA/gelatin nanofibers for the differentiation of ADSCs to keratinocytes 显示文摘 | Ravichandran R Venugopal JR Sundarrajan S | 2013 | J Mater Sci MaterMed2013，24，12： | 1 |
| 19 | Association between estrogen reeeptor-β gene polymorphisms and ovulatory dysfunctions in patients with menstrual disorders显示文摘 | Sundarrajan C Liao WX Roy AC | 2001 | J Clin Endocrinol Metab2001，86，1： | 1 |
| 20 | Fabrication of nanocomposite membranes from nanofibers and nanoparticles for protection against chemical warfare stimulants显示文摘 | SUNDARRAJAN S RAMAKRISHNA S | 2007 | Materials Sci2007，，42： | 1 |
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