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Sanoj Rejinold N, Muthunarayanan M, Divyarani VV, Sreerekha PR, Chennazhi KP, Nair SV, Tamura H, Jayakumar R. Corrigendum to "Curcumin-loaded biocompatible thermoresponsive polymeric nanoparticles for cancer drug delivery" [J. Colloid Interface Sci. 360 (2011) 39-51]. J Colloid Interface Sci 2019; 553:864-865. [PMID: 31378342 DOI: 10.1016/j.jcis.2019.06.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- N Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - M Muthunarayanan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - V V Divyarani
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - P R Sreerekha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - S V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India.
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2
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Kumar PTS, Srinivasan S, Lakshmanan VK, Tamura H, Nair SV, Jayakumar R. Corrigendum to "Synthesis, characterization and cytocompatibility studies of α-chitin hydrogel/nano hydroxyapatite composite scaffolds" [Int. J. Biol. Macromol. 49 (2011) 20-31]. Int J Biol Macromol 2019; 138:1138-1141. [PMID: 31279592 DOI: 10.1016/j.ijbiomac.2019.06.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- P T Sudheesh Kumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - Sowmya Srinivasan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - Vinoth-Kumar Lakshmanan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - S V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India.
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3
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Jayakumar R, Ramachandran R, Divyarani VV, Chennazhi KP, Tamura H, Nair SV. Corrigendum to "Fabrication of chitin-chitosan/nano TiO 2-composite scaffolds for tissue engineering applications" [Int. J. Biol. Macromol. 48 (2011) 336-344]. Int J Biol Macromol 2019; 135:1285-1287. [PMID: 31256977 DOI: 10.1016/j.ijbiomac.2019.06.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- R Jayakumar
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
| | - Roshni Ramachandran
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - V V Divyarani
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - S V Nair
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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4
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Jayakumar R, Ramachandran R, Kumar PTS, Divyarani VV, Srinivasan S, Chennazhi KP, Tamura H, Nair SV. Corrigendum to "Fabrication of chitin-chitosan/nano ZrO 2 composite scaffolds for tissue engineering applications" [Int. J. Biol. Macromol. 49 (2011) 274-280]. Int J Biol Macromol 2019; 135:1283-1284. [PMID: 31255323 DOI: 10.1016/j.ijbiomac.2019.06.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- R Jayakumar
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
| | - Roshni Ramachandran
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - P T Sudheesh Kumar
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - V V Divyarani
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Sowmya Srinivasan
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - S V Nair
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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5
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Rejinold NS, Sreerekha PR, Chennazhi KP, Nair SV, Jayakumar R. Corrigendum to "Biocompatible, biodegradable and thermo-sensitive chitosan-g-poly(N-isopropylacrylamide) nanocarrier for curcumin drug delivery" [Int. J. Biol. Macromol. 49 (2011) 161-172]. Int J Biol Macromol 2019; 135:1279-1282. [PMID: 31253371 DOI: 10.1016/j.ijbiomac.2019.06.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- N Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - P R Sreerekha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - S V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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Shalumon KT, Anulekha KH, Chennazhi KP, Tamura H, Nair SV, Jayakumar R. Corrigendum to "Fabrication of chitosan/poly(caprolactone) nanofibrous scaffold for bone and skin tissue engineering" [Int. J. Biol. Macromol. 48 (2011) 571-576]. Int J Biol Macromol 2019; 134:1217. [PMID: 31076183 DOI: 10.1016/j.ijbiomac.2019.04.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- K T Shalumon
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India
| | - K H Anulekha
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India
| | - K P Chennazhi
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering and High Technology Research Centre, Kansai University, Osaka 564-8680, Japan
| | - S V Nair
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India.
| | - R Jayakumar
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India.
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Shalumon KT, Anulekha KH, Nair SV, Nair SV, Chennazhi KP, Jayakumar R. Corrigendum to "Sodium alginate/poly(vinyl alcohol)/nano ZnO composite nanofibers for antibacterial wound dressings" [Int. J. Biol. Macromol., 49 (2011) 247-254]. Int J Biol Macromol 2019; 134:1218. [PMID: 31076181 DOI: 10.1016/j.ijbiomac.2019.04.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- K T Shalumon
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - K H Anulekha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - Sreeja V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - S V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India.
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India.
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Gutstein D, Lynall D, Nair SV, Savelyev I, Blumin M, Ercolani D, Ruda HE. Mapping the Coulomb Environment in Interference-Quenched Ballistic Nanowires. Nano Lett 2018; 18:124-129. [PMID: 29216432 DOI: 10.1021/acs.nanolett.7b03620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The conductance of semiconductor nanowires is strongly dependent on their electrostatic history because of the overwhelming influence of charged surface and interface states on electron confinement and scattering. We show that InAs nanowire field-effect transistor devices can be conditioned to suppress resonances that obscure quantized conduction thereby revealing as many as six sub-bands in the conductance spectra as the Fermi-level is swept across the sub-band energies. The energy level spectra extracted from conductance, coupled with detailed modeling shows the significance of the interface state charge distribution revealing the Coulomb landscape of the nanowire device. Inclusion of self-consistent Coulomb potentials, the measured geometrical shape of the nanowire, the gate geometry and nonparabolicity of the conduction band provide a quantitative and accurate description of the confinement potential and resulting energy level structure. Surfaces of the nanowire terminated by HfO2 are shown to have their interface donor density reduced by a factor of 30 signifying the passivating role played by HfO2.
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Affiliation(s)
- D Gutstein
- Centre for Advanced Nanotechnology, University of Toronto , Toronto, Ontario M5S 3E3, Canada
| | - D Lynall
- Centre for Advanced Nanotechnology, University of Toronto , Toronto, Ontario M5S 3E3, Canada
| | - S V Nair
- Centre for Advanced Nanotechnology, University of Toronto , Toronto, Ontario M5S 3E3, Canada
| | - I Savelyev
- Centre for Advanced Nanotechnology, University of Toronto , Toronto, Ontario M5S 3E3, Canada
| | - M Blumin
- Centre for Advanced Nanotechnology, University of Toronto , Toronto, Ontario M5S 3E3, Canada
| | - D Ercolani
- NEST - Scuola Normale Superiore and Istituto Nanoscienze CNR , Pisa, Italy
| | - H E Ruda
- Centre for Advanced Nanotechnology, University of Toronto , Toronto, Ontario M5S 3E3, Canada
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Gopika G, Asha AM, Sivakumar N, Balakrishnan A, Nair SV, Subramanian KRV. Photocatalytic Applications of Electrospun TiO2 Nanofibres Embedded with Bimodal Sized and Prismatic Gold Nanoparticles. J Nanosci Nanotechnol 2015; 15:7153-7159. [PMID: 26716301 DOI: 10.1166/jnn.2015.10531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this paper, we have synthesized electrospun TiO2 nanofibers embedded with bimodal sized and prismatic gold nanoparticles. The surface plasmons generated in the gold nanoparticles were used to enhance the performance of photocatalysis. The photocatalytic conversion efficiencies of these bimodal sized/prismatic gold nanoparticles when embedded in electrospun TiO2 fibres showed an enhancement of upto 60% over bare fiber systems and also show higher efficiencies than electrospun fibrous systems embedded with unimodal sized gold nanoparticles. Anisotropic bimodal gold nanoparticles show the highest degree of photocatalytic activity. This may be attributed to greater density/concentration of nanoparticles with higher effective surface area and formation of a junction between the smaller and larger nanoparticles. Such a bimodally distributed range of nanoparticles could also lead to greater trapping of charge carriers at the TiO2 conduction band edge and promoting catalytic reactions on account of these trapped charges. This enhanced photocatalytic activity is explained by invoking different operating mechanisms such as improved surface area, greater trapping, coarse plasmon resonance and band effects. Thus, a useful applicability of the gold nanoparticles is shown in the area of photocatalysis.
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Nair SV, Abdulsalim S, Yedavalli NS, Shukla R, Mohan MK. Prospective Study on the Average Cost of Therapy for Bronchial Asthma Patients in an Indian Tertiary Care Teaching Hospital. Value Health 2014; 17:A594. [PMID: 27202036 DOI: 10.1016/j.jval.2014.08.2047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- S V Nair
- Manipal University, Manipal, India
| | | | | | - R Shukla
- Manipal University, Manipal, India
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Yedavalli N, Shukla R, Nair SV, A S, Mohan MK. Prospective Study on Quality of Life (QOL) of Bronchial Asthma Patients in a Tertiary Care Teaching Hospital. Value Health 2014; 17:A602. [PMID: 27202081 DOI: 10.1016/j.jval.2014.08.2088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- N Yedavalli
- Manipal College Of Pharmaceutical Sciences, manipal, India
| | - R Shukla
- Manipal University, Manipal, India
| | - S V Nair
- Manipal University, Manipal, India
| | - S A
- Manipal University, Manipal, India
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12
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Roshny S, Ranjusha R, Deepak MS, Sanoj Rejinold N, Jayakumar R, Nair SV, Balakrishnan A. MnO2 nano/micro hybrids for supercapacitors: “Nano's Envy, Micro's pride”. RSC Adv 2014. [DOI: 10.1039/c4ra00935e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study provides the first reports on a low temperature molten salt route which can generate unique architecture of MnO2 nanospikes arrayed in a peculiar fashion to form micron sized ball morphology.
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Affiliation(s)
- S. Roshny
- Amrita Center for Nanosciences and Molecular Medicine
- Kochi, India
| | - R. Ranjusha
- Amrita Center for Nanosciences and Molecular Medicine
- Kochi, India
| | - M. S. Deepak
- Amrita Center for Nanosciences and Molecular Medicine
- Kochi, India
| | | | - R. Jayakumar
- Amrita Center for Nanosciences and Molecular Medicine
- Kochi, India
| | - S. V. Nair
- Amrita Center for Nanosciences and Molecular Medicine
- Kochi, India
| | - A. Balakrishnan
- Amrita Center for Nanosciences and Molecular Medicine
- Kochi, India
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Prabhakar V, Jayakrishnan G, Nair SV, Ranganathan B. Determination of Trace Metals, Moisture, pH and Assessment of Potential Toxicity of Selected Smokeless Tobacco Products. Indian J Pharm Sci 2013; 75:262-9. [PMID: 24082341 PMCID: PMC3783743 DOI: 10.4103/0250-474x.117398] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 02/23/2013] [Accepted: 03/06/2013] [Indexed: 11/05/2022] Open
Abstract
The characterization and classification of smokeless tobacco products has been a continuously evolving process. This is based on a number of different parameters like nicotine content, moisture content, amount of heavy metals, pH, and in vitro cytotoxicity assays. Their contexts often vary between countries, research institutions, and legal requirements. The categorisation of these products is quite challenging due to the diffused sample sizes, diverse array of branded products on offer, and the absence of a centralized manufacturing facility. This study aims at a systematic classification of 10 smokeless tobacco product samples from the retail market based on their potential toxicity upon long-term use. The estimation of potential toxicity follows a well-established method that employs the concentration of toxic metals in the different samples. The potential toxicity as well as heavy metal concentrations of the smokeless tobacco products analysed was found to be much higher than acceptable limits. For instance, the levels of lead, cadmium, copper and zinc of 2.5, 1, 4 and 23 ppm, respectively, are well above their recommended limits. The results from the study indicate that chronic use of smokeless tobacco products is a significant health risk, especially in the vulnerable population. Further studies of this nature will help establish a toxicological fingerprint on the diverse class of products that floods the market now.
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Affiliation(s)
- V Prabhakar
- Department of Pharmaceutical Chemistry, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham University, Health Sciences Campus, Kochi-682 041, India
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15
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Sreerekha PR, Menon D, Nair SV, Chennazhi KP. Fabrication of fibrin based electrospun multiscale composite scaffold for tissue engineering applications. J Biomed Nanotechnol 2013; 9:790-800. [PMID: 23802408 DOI: 10.1166/jbn.2013.1585] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Fabricating scaffolds mimicking the native extracellular matrix (ECM) in both structure and function is a key challenge in the field of tissue engineering. Previously we have demonstrated a novel electrospinnig method for the fabrication of fibrin nanofibers using Poly(vinyl alcohol) (PVA) as an 'electrospinning-driving' polymer. Here we demonstrate the fabrication and characterization of a multiscale fibrin based composite scaffold with polycaprolactone (PCL) by sequential electrospinning of PCL microfibers and fibrin nanofibers. This multiscale scaffold has great potential for tissue engineering applications due to the combined benefits of biological nanofibers such as cell attachment and proliferation and that of microfibers such as open structure, larger pore size and adequate mechanical strength. Physico chemical characterization of the electrospun scaffold was done by Scanning Electron Microscopy (SEM), Contact angle analysis, fibrin specific Phosphotungstic acid haematoxyllin (PTAH) staining and evaluation of mechanical properties. SEM data revealed the formation of bead free nanofibers of fibrin with a fiber diameter ranging from 50-500 nm and microfibers of PCL in the size range of 1 microns to 2.5 microns. These dimensions mimic the hierarchical structure of ECM found in native tissues. Cell attachment and viability studies using human mesenchymal stem cells (hMSC) revealed that the scaffold is non toxic and supports cell attachment, spreading and proliferation. In addition, we examined the inflammatory potential of the scaffold to demonstrate its usefulness in tissue engineering applications.
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Affiliation(s)
- P R Sreerekha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Cochin 682041, Kerala, India
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16
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Rejinold NS, Chennazhi KP, Nair SV, Jayakumar R. Fabrication of Multifunctional β-Chitin Nanogels as a Theragnostic Nanomedicine. ACTA ACUST UNITED AC 2013. [DOI: 10.1166/jcc.2013.1002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Binulal NS, Natarajan A, Menon D, Bhaskaran VK, Mony U, Nair SV. Gelatin nanoparticles loaded poly(ε-caprolactone) nanofibrous semi-synthetic scaffolds for bone tissue engineering. Biomed Mater 2012; 7:065001. [PMID: 23047255 DOI: 10.1088/1748-6041/7/6/065001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Nanofibrous semi-synthetic polymeric nanocomposite scaffolds were engineered by incorporating a maximum of 15 wt% biopolymeric gelatin nanoparticles (nGs) into the synthetic polymer poly(ε-caprolactone) (PCL) prior to electrospinning. The effect of nGs in altering the physico-chemical properties, cell material interaction and biodegradability of the scaffolds was evaluated. Experimental results showed that the inherent hydrophobicity of PCL scaffolds remained unaltered even after the incorporation of hydrophilic nGs. However, breakdown of the continuous nanofibers into lengths less than 7 µm occurred within four to eight weeks in the presence of nGs in contrast with the greater than two year time frame for the degradation of PCL fibers alone that is known from the literature. In terms of cell-material interaction, human mesenchymal stem cells (hMSCs) were found to attach and spread better and faster on PCL_nG scaffolds compared to PCL scaffolds. However, there was no difference in hMSC proliferation and differentiation into osteogenic lineage between the scaffolds. These results indicate that PCL_nG nanofibrous nanocomposite scaffolds are an improvement over PCL scaffolds for bone tissue engineering applications in that the PCL_nG scaffolds provide improved cell interaction and are able to degrade and resorb more efficiently.
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Affiliation(s)
- N S Binulal
- Amrita Centre for Nanosciences & Molecular Medicine, Amrita Vishwa Vidyapeetham University, Kochi, India
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18
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Shalumon KT, Sathish D, Nair SV, Chennazhi KP, Tamura H, Jayakumar R. Fabrication of Aligned Poly(Lactic Acid)-Chitosan Nanofibers by Novel Parallel Blade Collector Method for Skin Tissue Engineering. J Biomed Nanotechnol 2012; 8:405-16. [DOI: 10.1166/jbn.2012.1395] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shalumon KT, Chennazhi KP, Tamura H, Kawahara K, Nair SV, Jayakumar R. Fabrication of three-dimensional nano, micro and micro/nano scaffolds of porous poly(lactic acid) by electrospinning and comparison of cell infiltration by Z-stacking/three-dimensional projection technique. IET Nanobiotechnol 2012; 6:16-25. [PMID: 22423866 DOI: 10.1049/iet-nbt.2011.0028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The use of electrospun extracellular matrix (ECM)-mimicking nanofibrous scaffolds for tissue engineering is limited by poor cellular infiltration. The authors hypothesised that cell penetration could be enhanced in scaffolds by using a hierarchical structure where nano fibres are combined with micron-scale fibres while preserving the overall scaffold architecture. To assess this, we fabricated electrospun porous poly(lactic acid) (PLA) scaffolds having nanoscale, microscale and combined micro/nano architecture and evaluated the structural characteristics and biological response in detail. Although the bioactivity was intermediate to that for nanofibre and microfibre scaffold, a unique result of this study was that the micro/nano combined fibrous scaffold showed improved cell infiltration and distribution than the nanofibrous scaffold. Although the cells were found to be lining the scaffold periphery in the case of nanofibrous scaffold, micro/nano scaffolds had cells dispersed throughout the scaffold. Further, as expected, the addition of nanoparticles of hydroxyapatite (nHAp) improved the bioactivity, although it did not play a significant role in cell penetration. Thus, this strategy of creating a three-dimensional (3D) micro/nano architecture that would increase the porosity of the fibrous scaffold and thereby improving the cell penetration, can be utilised for the generation of functional tissue engineered constructs in vitro.
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Affiliation(s)
- K T Shalumon
- Amrita Vishwa Vidyapeetham University, Amrita Centre for Nanosciences and Molecular Medicine, Kochi, India
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Anitha A, Maya S, Deepa N, Chennazhi KP, Nair SV, Jayakumar R. Curcumin-loaded N,O-carboxymethyl chitosan nanoparticles for cancer drug delivery. J Biomater Sci Polym Ed 2012; 23:1381-400. [PMID: 21722423 DOI: 10.1163/092050611x581534] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Chitosan (CS) and its carboxymethyl derivatives are smart biopolymers that are non-toxic, biocompatible and biodegradable, and, hence, suitable for various biomedical applications, such as drug delivery, gene therapy and tissue engineering. Curcumin is a major chemotherapeutic agent with antioxidant, anti-inflammatory, anti-proliferative, anticancer and antimicrobial effects. However, the potential of curcumin as a chemotherapeutic agent is limited by its hydrophobicity and poor bioavailability. In this work, we developed a nanoformulation of curcumin in a carboxymethyl chitosan (CMC) derivative, N,O-carboxymethyl chitosan (N,O-CMC). The curcumin-loaded N,O-CMC (curcumin-N,O-CMC) nanoparticles were characterized using DLS, AFM, SEM, FT-IR and XRD. DLS studies revealed nanoparticles with a mean diameter of 150 ± 30 nm. AFM and SEM confirmed that the particles have a spherical morphology within the size range of 150 ± 30 nm. Curcumin was entrapped with in N,O-CMC nanopartcles with an efficiency of 80%. The in vitro drug-release profile was studied at different pH (7.4 and 4.5) at 37°C for different incubation periods with and without lysozyme. Cytotoxicity studies using MTT assay indicated that curcumin-N,O-CMC nanoparticles showed specific toxicity towards cancer cells and non-toxicity to normal cells. Cellular uptake of curcumin-N,O-CMC nanoparticles was analyzed by fluorescence microscopy and was reconfirmed by flow cytometry. Overall, these results indicate that like previously reported curcumin loaded O-CMC nanoparticles, N,O-CMC will also be an efficient nanocarrier for delivering curcumin to cancer cells.
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Affiliation(s)
- A Anitha
- a Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi , 682041 , India
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Midhun BT, Shalumon KT, Manzoor K, Jayakumar R, Nair SV, Deepthy M. Preparation of Budesonide-Loaded Polycaprolactone Nanobeads by Electrospraying for Controlled Drug Release. Journal of Biomaterials Science, Polymer Edition 2012; 22:2431-44. [DOI: 10.1163/092050610x540486] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- B. T. Midhun
- a Amrita Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidhyapeetham University, Cochin-682 041, India
| | - K. T. Shalumon
- b Amrita Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidhyapeetham University, Cochin-682 041, India
| | - K. Manzoor
- c Amrita Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidhyapeetham University, Cochin-682 041, India
| | - R. Jayakumar
- d Amrita Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidhyapeetham University, Cochin-682 041, India
| | - S. V. Nair
- e Amrita Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidhyapeetham University, Cochin-682 041, India
| | - M. Deepthy
- f Amrita Centre for Nanosciences & Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidhyapeetham University, Cochin-682 041, India.
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Renu G, Rani VVD, Nair SV, Subramanian KRV, Lakshmanan VK. Development of Cerium Oxide Nanoparticles and Its Cytotoxicity in Prostate Cancer Cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1166/asl.2012.3312] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Anitha A, Chennazhi KP, Nair SV, Jayakumar R. 5-Flourouracil Loaded N,O-Carboxymethyl Chitosan Nanoparticles as an Anticancer Nanomedicine for Breast Cancer. J Biomed Nanotechnol 2012; 8:29-42. [DOI: 10.1166/jbn.2012.1365] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Narayanan D, Anitha A, Jayakumar R, Nair SV, Chennazhi KP. Synthesis, Characterization and Preliminary In Vitro Evaluation of PTH 1-34 Loaded Chitosan Nanoparticles for Osteoporosis. J Biomed Nanotechnol 2012; 8:98-106. [DOI: 10.1166/jbn.2012.1367] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shalumon KT, Sreerekha PR, Sathish D, Tamura H, Nair SV, Chennazhi KP, Jayakumar R. Hierarchically designed electrospun tubular scaffolds for cardiovascular applications. J Biomed Nanotechnol 2012; 7:609-20. [PMID: 22195478 DOI: 10.1166/jbn.2011.1337] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Hierarchically designed tubular scaffolds with bi-layer and multi-layer structures are expected to mimic native vessels in its structural geometry. A new approach for the fabrication of hierarchically designed tubular scaffold with suitable morphology was introduced through electrospinning technique. Among these scaffolds, bi-layer scaffold had a single inner and outer layer whereas multilayer scaffold had more number of inner layers. The inner layer/layers of the scaffolds were made up of aligned poly (lactic acid) (PLA) fibers for EC adhesion where as outer layers were composed of random fibers of poly (caprolactone) (PCL) and PLA providing larger pores for SMC penetration. The fabricated scaffolds were characterized by FTIR spectroscopy and Differential Thermal Analysis (DTA) and examined by evaluating cellular interactions. Human Umbilical Vein Endothelial Cells (HUVECs) seeded on aligned PLA fibers showed enhanced cellular orientation and cytoskeletal organization. In addition, the PCL-PLA composite random fibers supported SMC adhesion and proliferation sufficiently. The functionality of the endothelial cells grown on the PLA-aligned scaffold was also found to be satisfactory. Lining the constructs with a luminal monolayer of well-organized ECs along with homogenously distributed SMCs surrounding them might result in vascular conduits suitable for in vivo applications. Since this hierarchically designed tubular scaffold closely mimics the morphology of native vessel, this could be a better candidate for vascular tissue engineering.
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Affiliation(s)
- K T Shalumon
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
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Rejinold NS, Muthunarayanan M, Chennazhi KP, Nair SV, Jayakumar R. Curcumin loaded fibrinogen nanoparticles for cancer drug delivery. J Biomed Nanotechnol 2011; 7:521-34. [PMID: 21870456 DOI: 10.1166/jbn.2011.1320] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this work we prepared and evaluated the curcumin loaded fibrinogen nanoparticles (CRC-FNPs) as a novel drug delivery system for cancer therapy. These novel CRC-FNPs were prepared by a two-step co-acervation method using calcium chloride as the cross-linker. The prepared nanoparticles were characterized using dynamic light scattering (DLS), atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetry (TG), differential thermal analysis (DTA) and X-ray diffraction (XRD) studies. DLS studies showed that the particle size of CRC-FNPs was in the range of 150-200 nm. The loading efficiency (LE) and in vitro drug release were studied using UV spectrophotometer. The LE was found to be 90%. The cytotoxicity was studied using L929 (mouse fibroblast), PC3 (prostate) and MCF7 (breast) cancer cell lines by MTT assay, which confirmed that CRC-FNPs were comparatively non toxic to L929 cell line while toxic to PC3 and MCF7 cancer cells. Cellular uptake of CRC-FNPs studied using L929, MCF-7 and PC3 cells monitored by fluorescent microscopy, demonstrated significant internalization and retention of nanoparticles inside the cells. The preferential accumulation of curcumin within the cancer cells were also confirmed by flowcytometry based uptake studies. The apoptosis assay showed increased apoptosis on MCF-7 compared to L929 cells. The blood compatibility of CRC-FNPs throws light on the fact that it is possible to administer the prepared nanoformulation intravenously. The results indicated that CRC-FNPs could be a promising therapeutic agent for cancer treatment.
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Affiliation(s)
- N Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
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Shalumon KT, Anulekha KH, Nair SV, Nair SV, Chennazhi KP, Jayakumar R. Sodium alginate/poly(vinyl alcohol)/nano ZnO composite nanofibers for antibacterial wound dressings. Int J Biol Macromol 2011; 49:247-54. [PMID: 21635916 DOI: 10.1016/j.ijbiomac.2011.04.005] [Citation(s) in RCA: 291] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Accepted: 04/06/2011] [Indexed: 11/25/2022]
Abstract
Sodium alginate (SA)/poly (vinyl alcohol) (PVA) fibrous mats were prepared by electrospinning technique. ZnO nanoparticles of size ∼160nm was synthesized and characterized by UV spectroscopy, dynamic light scattering (DLS), XRD and infrared spectroscopy (IR). SA/PVA electrospinning was further carried out with ZnO with different concentrations (0.5, 1, 2 and 5%) to get SA/PVA/ZnO composite nanofibers. The prepared composite nanofibers were characterized using FT-IR, XRD, TGA and SEM studies. Cytotoxicity studies performed to examine the cytocompatibility of bare and composite SA/PVA fibers indicate that those with 0.5 and 1% ZnO concentrations are less toxic where as those with higher concentrations of ZnO is toxic in nature. Cell adhesion potential of this mats were further proved by studying with L929 cells for different time intervals. Antibacterial activity of SA/PVA/ZnO mats were examined with two different bacteria strains; Staphylococcus aureus and Escherichia coli, and found that SA/PVA/ZnO mats shows antibacterial activity due to the presence of ZnO. Our results suggest that this could be an ideal biomaterial for wound dressing applications once the optimal concentration of ZnO which will give least toxicity while providing maximum antibacterial activity is identified.f.
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Affiliation(s)
- K T Shalumon
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
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Jayakumar R, Ramachandran R, Sudheesh Kumar PT, Divyarani VV, Srinivasan S, Chennazhi KP, Tamura H, Nair SV. Fabrication of chitin-chitosan/nano ZrO(2) composite scaffolds for tissue engineering applications. Int J Biol Macromol 2011; 49:274-80. [PMID: 21575656 DOI: 10.1016/j.ijbiomac.2011.04.020] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 04/08/2011] [Accepted: 04/28/2011] [Indexed: 11/25/2022]
Abstract
The urge to repair and regenerate natural tissues can now be satisfactorily fulfilled by various tissue engineering approaches. Chitin and chitosan are the most widely accepted biodegradable and biocompatible materials subsequent to cellulose. The incorporation of nano ZrO(2) onto the chitin-chitosan scaffold is thought to enhance osteogenesis. Hence a nanocomposite scaffold was fabricated by lyophilization technique using chitin-chitosan with nano ZrO(2). The prepared nanocomposite scaffolds were characterized using SEM, FTIR, XRD and TGA. In addition, the swelling, degradation, biomineralization, cell viability and cell attachment of the composite scaffolds were also evaluated. The results demonstrated better swelling and controlled degradation in comparison to the control scaffold. Cell viability studies proved the non toxic nature of the nanocomposite scaffolds. Cells were found to be attached to the pore walls and spread uniformly throughout the scaffolds. All these results suggested that the developed nanocomposite scaffolds possess the prerequisites for tissue engineering scaffolds and could be used for various tissue engineering applications.
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Affiliation(s)
- R Jayakumar
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India.
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Jayakumar R, Prabaharan M, Shalumon KT, Chennazhi KP, Nair SV. Biomedical Applications of Polymer/Silver Composite Nanofibers. Biomedical Applications of Polymeric Nanofibers 2011. [DOI: 10.1007/12_2011_123] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Jayakumar R, Ramachandran R, Divyarani VV, Chennazhi KP, Tamura H, Nair SV. Fabrication of chitin-chitosan/nano TiO2-composite scaffolds for tissue engineering applications. Int J Biol Macromol 2010; 48:336-44. [PMID: 21182857 DOI: 10.1016/j.ijbiomac.2010.12.010] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2010] [Revised: 12/03/2010] [Accepted: 12/13/2010] [Indexed: 12/01/2022]
Abstract
In this study, we prepared chitin-chitosan/nano TiO(2) composite scaffolds using lyophilization technique for bone tissue engineering. The prepared composite scaffold was characterized using SEM, XRD, FTIR and TGA. In addition, swelling, degradation and biomineralization capability of the composite scaffolds were evaluated. The developed composite scaffold showed controlled swelling and degradation when compared to the control scaffold. Cytocompatibility of the scaffold was assessed by MTT assay and cell attachment studies using osteoblast-like cells (MG-63), fibroblast cells (L929) and human mesenchymal stem cells (hMSCs). Results indicated no sign of toxicity and cells were found attached to the pore walls within the scaffolds. These results suggested that the developed composite scaffold possess the prerequisites for tissue engineering scaffolds and it can be used for tissue engineering applications.
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Affiliation(s)
- R Jayakumar
- Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham Elamakkara, Kochi 682026, Kerala, India.
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Guldbrand D, Goetzsche O, Eika B, Watanabe N, Taniguchi M, Akagi T, Koide N, Sano S, Orbovic B, Obrenovic-Kircanski B, Ristic S, Soskic LJ, Alhabshan F, Jijeh A, Abo Remsh H, Alkhaldi A, Najm HK, Gasior Z, Skowerski M, Kulach A, Szymanski L, Sosnowski M, Wang M, Siu CW, Lee K, Yue WS, Yan GH, Lee S, Lau CP, Tse HF, O'connor K, Rosca M, Magne J, Romano G, Moonen M, Pierard LA, Lancellotti P, Floria M, De Roy L, Blommaert D, Jamart J, Dormal F, Lacrosse M, Arsenescu Georgescu C, Mizariene V, Bucyte S, Bertasiute A, Pociute E, Zaliaduonyte-Peksiene D, Baronaite-Dudoniene K, Sileikiene R, Vaskelyte J, Jurkevicius R, Dencker M, Thorsson O, Karlsson MK, Linden C, Wollmer P, Andersen LB, Catalano O, Perotti MR, Colombo E, De Giorgi M, Cattaneo M, Cobelli F, Priori SG, Ober C, Iancu Adrian IA, Andreea Parv PA, Cadis Horatiu CH, Ober Mihai OM, Chmielecki M, Fijalkowski M, Galaska R, Dubaniewicz W, Lewicki L, Targonski R, Ciecwierz D, Puchalski W, Koprowski A, Rynkiewicz A, Hristova K, La Gerche A, Katova TZ, Kostova V, Simova Y, Kempny A, Diller GP, Orwat S, Kaleschke G, Kerckhoff G, Schmidt R, Radke RM, Baumgartner H, Smarz K, Zaborska B, Jaxa-Chamiec T, Maciejewski P, Budaj A, Kiotsekoglou A, Govind SC, Gadiyaram V, Moggridge JC, Govindan M, Gopal AS, Ramesh SS, Brodin LA, Saha SK, Ramzy IS, Lindqvist P, Lam YY, Duncan AM, Henein MY, Craciunescu IS, Serban M, Iancu M, Revnic C, Popescu BA, Alexandru D, Rogoz D, Uscatescu V, Ginghina C, Careri G, Di Monaco A, Nerla R, Tarzia P, Lamendola P, Sestito A, Lanza GA, Crea F, Giannini F, Pinamonti B, Santangelo S, Perkan A, Vitrella G, Rakar S, Merlo M, Della Grazia E, Salvi A, Sinagra G, Scislo P, Kochanowski J, Piatkowski R, Roik M, Postula M, Opolski G, Castillo J, Herszkowicz N, Ferreira C, Lonnebakken MT, Staal EM, Nordrehaug JE, Gerdts E, Przewlocka-Kosmala M, Orda A, Karolko B, Bajraktari G, Lindqvist P, Gustafsson U, Holmgren A, Henein MY, Frattini S, Faggiano P, Zilioli V, Locantore E, Longhi S, Bellandi F, Faden G, Triggiani M, Dei Cas L, Seo SM, Jung HO, An SH, Jung SY, Park CS, Jeon HK, Youn HJ, Chung WB, Kim JH, Uhm JS, Mampuya W, Brochu MC, Do DH, Essadiqi B, Farand P, Lepage S, Daly MJ, Monaghan M, Hamilton A, Lockhart C, Kodoth V, Maguire C, Morton A, Manoharan G, Spence MS, Streb W, Mitrega K, Nowak J, Duszanska A, Szulik M, Kalinowski M, Kukulski T, Kalarus Z, Calvo Iglesias FE, Solla-Ruiz I, Villanueva-Benito I, Paredes-Galan E, Bravo-Amaro M, Iniguez-Romo A, Yildirimturk O, Helvacioglu FF, Tayyareci Y, Yurdakul S, Demiroglu IC, Aytekin S, Enache R, Piazza R, Muraru D, Roman-Pognuz A, Popescu BA, Calin A, Leiballi E, Antonini-Canterin F, Ginghina C, Nicolosi GL, Ridard C, Bellouin A, Thebault C, Laurent M, Donal E, Sutandar A, Siswanto BB, Irmalita I, Harimurti G, Saxena A, Ramakrishnan S, Roy A, Krishnan A, Misra P, Bhargava B, Poole-Wilson PA, Loegstrup BB, Andersen HR, Poulsen SH, Klaaborg KE, Egeblad HE, Gu X, Gu XY, He YH, Li ZA, Han JC, Chen J, Mansencal N, Mitry E, Rougier P, Dubourg O, Villarraga H, Adjei-Twum K, Cudjoe TKM, Clavell A, Schears RM, Cabrera Bueno F, Molina Mora MJ, Fernandez Pastor J, Linde Estrella A, Pena Hernandez JL, Isasti Aizpurua G, Carrasco Chinchilla F, Barrera Cordero A, Alzueta Rodriguez FJ, De Teresa Galvan E, Gaetano Contegiacomo GC, Francesco Pollice FP, Paolo Pollice PP, Gu X, Gu XY, He YH, Li ZA, Kontos MC, Shin DH, Yoo SY, Lee CK, Jang JK, Jung SI, Song SI, Seo SI, Cheong SS, Peteiro J, Perez-Perez A, Bouzas-Mosquera A, Pineiro M, Pazos P, Campo R, Castro-Beiras A, Gaibazzi N, Rigo F, Sartorio D, Reverberi C, Sitia S, Tomasoni L, Gianturco L, Ghio L, Stella D, Greco P, De Gennaro Colonna V, Turiel M, Sitia S, Tomasoni L, Cicala S, Magagnin V, Caiani E, Turiel M, Kyrzopoulos S, Tsiapras D, Domproglou G, Avramidou E, Voudris V, Wierzbowska-Drabik K, Lipiec P, Chrzanowski L, Roszczyk N, Kupczynska K, Kasprzak JD, Sachpekidis V, Bhan A, Gianstefani S, Reiken J, Paul M, Pearson P, Harries D, Monaghan MJ, Dale K, Stoylen A, Saha SK, Kodali V, Toole R, Govind SC, Moggridge JC, Kiotsekoglou A, Gopal AS, Raju P, Mcintosh RA, Silberbauer J, Baumann O, Patel NR, Sulke N, Trivedi U, Hyde J, Venn G, Lloyd G, Wejner-Mik P, Lipiec P, Wierzbowska K, Kasprzak JD, Lowenstein JA, Caniggia C, Garcia A, Amor M, Casso N, Lowenstein Haber D, Porley C, Zambrana G, Daru V, Deljanin Ilic M, Ilic S, Kalimanovska Ostric D, Stoickov V, Zdravkovic M, Paraskevaidis I, Ikonomidis I, Parissis J, Papadopoulos C, Stasinos V, Bistola V, Anastasiou-Nana M, Gudin Uriel M, Balaguer Malfagon JR, Perez Bosca JL, Ridocci Soriano F, Martinez Alzamora N, Paya Serrano R, Ciampi Q, Pratali L, Della Porta M, Petruzziello B, Villari B, Picano E, Sicari R, Rosner A, Avenarius D, Malm S, Iqbal A, Baltabaeva A, Sutherland GR, Bijnens B, Myrmel T, Andersen M, Gustafsson F, Secher NH, Brassard P, Jensen AS, Hassager C, Madsen PL, Moller JE, Mampuya W, Brochu MC, Coutu M, Do DH, Essadiqi B, Farand P, Greentree D, Normandin D, Lepage S, Brun H, Dipchand A, Koopman L, Fackoury CT, Truong S, Manlhiot C, Mertens L, Baroni M, Mariani M, Chabane HK, Berti S, Ripoli A, Storti S, Glauber M, Scopelliti PA, Antongiovanni GB, Personeni D, Saino A, Tespili M, Jung P, Mueller M, Jander F, Sohn HY, Rieber J, Schneider P, Klauss V, Agricola E, Slavich M, Stella S, Ancona M, Oppizzi M, Bertoglio L, Melissano G, Margonato A, Chiesa R, Cejudo Diaz Del Campo L, Mesa Rubio D, Ruiz Ortiz M, Delgado Ortega M, Villanueva Fernandez E, Lopez Aguilera J, Toledano Delgado F, Pan Alvarez-Ossorio M, Suarez De Lezo Cruz Conde J, Lafuente M, Butz T, Meissner A, Lang CN, Prull MW, Plehn G, Trappe HJ, Nair SV, Lee L, Mcleod I, Whyte G, Shrimpton J, Hildick Smith D, James PR, Slikkerveer J, Appelman YEA, Veen G, Porter TR, Kamp O, Colonna P, Ten Cate FJ, Bokor D, Daponte A, Cocciolo M, Bona M, Sacchi S, Becher H, Chai SC, Tan PJ, Goh YS, Ong SH, Chow J, Lee LL, Goh PP, Tong KL, Kakihara R, Naruse C, Hironaka H, Tsuzuku T, Ozawa K, Tomaszuk-Kazberuk A, Sobkowicz B, Malyszko J, Malyszko JS, Kalinowski M, Sawicki R, Hirnle T, Dobrzycki S, Mysliwiec M, Musial WJ, Mathias W, Kowatsch I, Saroute ALR, Osorio AFF, Sbano JCN, Ramires JAF, Tsutsui JM, Sakata K, Ito H, Ishii K, Sakuma T, Iwakura K, Yoshino H, Yoshikawa J, Shahgaldi K, Lopez A, Fernstrom B, Sahlen A, Winter R, Kovalova S, Necas J, Amundsen BH, Jasaityte R, Kiss G, Barbosa D, D'hooge J, Torp H, Szmigielski CA, Newton JD, Rajpoot K, Noble JA, Kerber R, Becher H, Koopman LP, Slorach C, Chahal N, Hui W, Sarkola T, Manlhiot C, Bradley TJ, Jaeggi ET, Mccrindle BW, Mertens L, Staron A, Gasior Z, Jasinski M, Wos S, Sengupta P, Wierzbowska-Drabik K, Chrzanowski L, Kasprzak JD, Hayat D, Kloeckner M, Nahum J, Dussault C, Dubois Rande JL, Gueret P, Lim P, King GJ, Brown A, Ho E, Amuntaser I, Bennet K, Mc Elhome N, Murphy RT, Cooper RM, Somauroo JD, Shave RE, Williams KL, Forster J, George C, Bett T, George KP, D'andrea A, Riegler L, Cocchia R, Golia E, Gravino R, Salerno G, Citro R, Caso PIO, Bossone E, Calabro' R, Crispi F, Bijnens B, Figueras F, Bartrons J, Eixarch E, Le Noble F, Ahmed A, Gratacos E, Shang Q, Yip WK, Tam LS, Zhang Q, Lam YY, Li CM, Wang T, Ma CY, Li KM, Yu CM, Dahlslett T, Helland I, Edvardsen T, Skulstad H, Magda LS, Florescu M, Ciobanu A, Dulgheru R, Mincu R, Vinereanu D, Luckie M, Chacko S, Nair S, Mamas M, Khattar RS, El-Omar M, Kuch-Wocial A, Pruszczyk P, Szmigielski CA, Szulc M, Styczynski G, Sinski M, Kaczynska A, Bajraktari G, Vela Z, Haliti E, Hyseni V, Olloni R, Rexhepaj N, Elezi S, Henein MY, Onaindia JJ, Quintana O, Cacicedo A, Velasco S, Alarcon JJ, Morillas M, Rumoroso JR, Zumalde J, Lekuona I, Laraudogoitia Zaldumbide E, Haliti E, Bajraktari G, Poniku A, Ahmeti A, Elezi S, Henein MY, Duncan RF, Mccomb JM, Pemberton J, Lord SW, Leong D, Plummer C, Macgowan G, Grubb N, Leung M, Kenny A, Prinz C, Voigt JU, Zaidi A, Heatley M, Abildstrom SZ, Hvelplund A, Berning J, Saha SK, Toole R, Govind S, Kiotsekoglou A, Brodin L, Gopal A, Castaldi B, Di Salvo G, Santoro G, Gaio G, Palladino MT, Iacono C, Pacileo G, Russo MG, Calabro R, Wang YS, Dong LL, Shu XH, Pan CZ, Zhou DX, Sen T, Tufekcioglu O, Ozdemir M, Tuncez A, Uygur B, Golbasi Z, Kisacik H, Delfino L, De Leo FD, Chiappa LC, Abdel Ghani B, Schiavina R, Salvade P, Morganti A, Bedogni F, Mahia P, Gutierrez L, Pineda V, Garcia B, Otaegui I, Rodriguez JF, Gonzalez MT, Descalzo M, Evangelista A, Garcia-Dorado D, Bruin De- Bon HACM, Van Den Brink RBA, Surie S, Bresser P, Vleugels J, Eckmann HM, Samson DA, Bouma BJ, Dedobbeleer C, Antoine M, Remmelink M, Unger P, Roosens B, Hmila I, Hernot S, Droogmans S, Van Camp G, Lahoutte T, Muyldermans S, Cosyns B, Feltes G, Serra V, Azevedo O, Barbado J, Herrera J, Rivera A, Paniagua J, Valverde V, Torras J, Arriba G, Christodoulides T, Ioannides M, Simamonian K, Yiangou K, Myrianthefs M, Nicolaides E, Dedobbeleer C, Pandolfo M, Unger P, Kleijn SA, Aly MFAA, Terwee CB, Van Rossum AC, Kamp O, Delgado V, Shanks M, Siebelink HM, Sieders A, Lamb H, Ajmone Marsan N, Westenberg J, De Roos A, Schuijf JD, Bax JJ, Anwar AM, Nosir Y, Chamsi-Pasha H, Tschernich HD, Seeburger J, Borger M, Mukherjee C, Mohr FW, Ender J, Obase K, Okura H, Yamada R, Miyamoto Y, Saito K, Imai K, Hayashida A, Watanabe N, Yoshida K. Poster session III * Friday 10 December 2010, 08:30-12:30. European Journal of Echocardiography 2010. [DOI: 10.1093/ejechocard/jeq144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kuznetsov VA, Kozhurina AO, Plusnin AV, Szulik M, Sredniawa B, Streb W, Lenarczyk R, Stabryla-Deska J, Sedkowska A, Kowalski O, Kalarus Z, Kukulski T, Katova TM, Nesheva A, Simova I, Hristova K, Kostova V, Boiadjiev L, Dimitrov N, Papamichalis Michalis MP, Sitafidis George SG, Dimopoulos Basilios BD, Kelepesis Glafkos GK, Economou Dimitrios DE, Skoularigis John JS, Triposkiadis Filippos FT, Attenhofer Jost CH, Pfyffer M, Naegeli B, Levis P, Faeh-Gunz A, Brunner-Larocca HP, Velasco Del Castillo MS, Cacicedo A, Onaindia JJ, Gonzalez Ruiz J, Subinas A, Alarcon JA, Quintana O, Rodriguez I, Laraudogoitia E, Lam YY, Henein MY, Mazzone A, Vianello A, Perlini S, Corciu AI, Cappelli S, Cerillo A, Chiappino D, Berti S, Glauber M, Herrmann S, Niemann M, Stoerk S, Strotmann J, Voelker W, Ertl G, Weidemann F, Yong ZY, Boerlage - Van Dijk K, Koch KT, Vis MM, Bouma BJ, Henriques JPS, Cocchieri R, De Mol BAJM, Piek JJ, Baan J, Keenan NGJ, Cueff C, Cimadevilla C, Brochet E, Lepage L, Detaint D, Iung B, Vahanian A, Messika-Zeitoun D, Otsuka T, Suzuki M, Yoshikawa H, Hashimoto G, Osaki T, Tsuchida T, Matsuyama M, Yamashita H, Ozaki S, Sugi K, Garcia Alonso CJ, Vallejo Camazon N, Ferrer Sistach E, Camara ML, Lopez Ayerbe J, Bosch Carabante C, Espriu Simon M, Gual Capllonch F, Bayes Genis A, Deswarte G, Vanesson C, Polge AS, Huchette D, Modine T, Marboeuf P, Lamblin N, Bauters C, Deklunder G, Le Tourneau T, Agricola A, Gullace M, Stella S, D'amato R, Slavich M, Oppizzi M, Ancona M, Margonato A, Le Ven F, Etienne Y, Jobic Y, Frachon I, Castellant P, Fatemi M, Blanc JJ, Muratori M, Montorsi P, Maffessanti F, Gripari P, Teruzzi G, Ghulam Ali S, Fusini L, Celeste F, Pepi M, Goebel B, Haugaa K, Meyer K, Otto S, Lauten A, Jung C, Edvardsen T, Figulla HR, Poerner TC, Aksoy H, Okutucu S, Evranos B, Aytemir K, Kaya EB, Kabakci G, Tokgozoglu L, Ozkutlu H, Oto A, Valeur N, Pedersen HH, Videbaek R, Hassager C, Svendsen JH, Kober L, Tigen MK, Karaahmet T, Gurel E, Pala S, Dundar C, Basaran Y, Caldararu CI, Ene E, Dorobantu M, Vatasescu RG, Tigen MK, Karaahmet T, Gurel E, Dundar C, Basaran Y, Tigen MK, Karaahmet T, Gurel E, Dundar C, Pala S, Basaran Y, Tigen MK, Pala S, Karaahmet T, Dundar C, Gurel E, Basaran Y, Cikes M, Bijnens B, Gasparovic H, Siric F, Velagic V, Lovric D, Samardzic J, Ferek-Petric B, Milicic D, Biocina B, Kjaergaard J, Ghio S, St John Sutton M, Hassager C, Moreau O, Kervio G, Thebault C, Leclercq C, Donal E, Mornos C, Rusinaru D, Petrescu L, Cozma D, Ionac A, Pescariu S, Dragulescu SI, Petrovic MZ, Vujisic-Tesic B, Milasinovic G, Petrovic MT, Nedeljkovic I, Zamaklar-Trifunovic D, Calovic Z, Jelic V, Boricic M, Petrovic I, Kuchynka P, Palecek T, Simek S, Nemecek E, Horak J, Hulinska D, Schramlova J, Vitkova I, Aster V, Linhart A, Paluszkiewicz L, Guersoy D, Ozegowski S, Spiliopoulos S, Koerfer R, Tenderich G, Gaggl M, Heinze G, Sunder-Plassmann G, Graf S, Zehetmayer M, Voigtlaender T, Mannhalter C, Paschke E, Fauler G, Mundigler G, Tesic M, Trifunovic D, Djordjevic-Dikic A, Petrovic O, Nedeljkovic I, Petrovic M, Boricic M, Beleslin B, Vujisic-Tesic B, Ostojic M, Trifunovic D, Tesic M, Vujisic-Tesic B, Petrovic O, Petrovic M, Nedeljkovic I, Boricic M, Draganic G, Ostojic M, Correia CE, Rodrigues B, Santos LF, Moreira D, Gama P, Nunes L, Nascimento C, Dionisio O, Santos O, Prinz C, Oldenburg O, Bitter T, Piper C, Horstkotte D, Faber L, Nemes A, Gavaller H, Csanady M, Forster T, Calcagnino M, O'mahony C, Tsovolas K, Lambiase PD, Elliott P, Olezac AS, Bensaid A, Nahum J, Teiger E, Dubois-Rande JL, Gueret P, Lim P, Prinz C, Langer C, Oldenburg O, Horstkotte D, Faber L, Kansal M, Surapaneni P, Sengupta PP, Lester SJ, Ommen SR, Ressler SW, Hurst RT, Monivas Palomero V, Mingo Santos S, Mitroi C, Garcia Lunar I, Garcia Pavia P, Gonzalez Mirelis J, Ruiz Bautista L, Castro Urda V, Toquero Ramos J, Fernandez Lozano I, Sommer A, Poulsen SH, Mogensen J, Thuesen L, Egeblad H, Montisci R, Ruscazio M, Vacca A, Garau P, Tuveri F, Soro C, Matthieu A, Meloni L, Kosmala W, Przewlocka-Kosmala M, Wojnalowicz A, Mysiak A, Marwick TH, Yotti R, Ripoll C, Bermejo J, Benito Y, Mombiela T, Rincon D, Barrio A, Banares R, Fernandez-Aviles F, Tomaszewski A, Kutarski A, Tomaszewski M, Ticulescu R, Vriz O, Sparacino L, Popescu BA, Ginghina C, Nicolosi GL, Carerj S, Antonini-Canterin F, Agricola E, Slavich M, Stella S, Ancona M, Oppizzi M, Bertoglio L, Melissano G, Margonato A, Chiesa R, Garcia Blas S, Iglesias Del Valle D, Lopez Fernandez T, Gomez De Diego JJ, Monedero Martin MC, Dominguez FJ, Moreno Yanguela M, Lopez Sendon JL, Adhya S, Murgatroyd FD, Monaghan M, Spinarova L, Meluzin J, Hude P, Krejci J, Podrouzkova H, Pesl M, Panovsky R, Dusek L, Orban M, Korinek J, Hammerstingl C, Schwiekendik M, Nickenig G, Momcilovic D, Lickfett L, Beladan CC, Calin A, Rosca M, Popescu BA, Muraru D, Voinea F, Popa E, Matei F, Curea F, Ginghina C, Di Salvo G, Pacileo G, Gala S, Castaldi B, D'aiello AF, Mormile A, Baldini L, Russo MG, Calabro R, Halvorsen PS, Dahle G, Bugge JF, Bendz B, Aaberge L, Rein KA, Fiane A, Bergsland J, Fosse E, Aakhus S, Koopman LP, Chahal N, Slorach C, Hui W, Sarkola T, Manlhiot C, Bradley TJ, Jaeggi ET, Mccrindle BW, Mertens L, Di Salvo G, Pacileo G, Castaldi B, Gala S, Baldini L, D'aiello FA, Mormilw A, Rea A, Russo MG, Calabro R, Calin A, Rosca M, O'Connor K, Romano G, Magne J, Beladan CC, Ginghina C, Pierard L, Lancellotti P, Popescu BA, Arita T, Ando K, Isotani A, Soga Y, Iwabuchi M, Nobuyoshi M, Hammerstingl C, Momcilovic D, Wiesen M, Nickenig G, Skowasch D, Mornos C, Cozma D, Rusinaru D, Ionac A, Pescariu S, Dragulescu SI, Niemann M, Breunig F, Beer M, Herrmann S, Strotmann J, Hu K, Voelker W, Ertl G, Wanner C, Weidemann F, Morel MA, Bernard YF, Descotes-Genon V, Meneveau N, Schiele F, Vitarelli A, Bernardi M, Scarno A, Caranci F, Padella V, Dettori O, Capotosto L, Vitarelli M, De Cicco V, Bruno P, Bajraktari G, Lindqvist P, Gustafsson U, Holmgren A, Henein MY, Hassan M, Said K, Baligh E, Farouk H, Osama D, Elmahdy MF, Elfaramawy A, Sorour K, Luckie M, Zaidi A, Fitzpatrick A, Khattar RS, Schwartz J, Huttin O, Popovic B, Zinzius PY, Christophe C, Marcon O, Groben L, Juilliere Y, Chabot F, Selton-Suty C, Krastev B, Kinova ETK, Zlatareva NIZ, Goudev ARG, Teske AJ, De Boeck BW, Mohames Hoesein FA, Van Driel V, Loh P, Cramer MJ, Doevendans PA, Dillenburg F, Mertens L, Abd El Salam KM, Ho EMM, Hall M, Hemeryck L, Bennett K, Scott K, King G, Murphy RT, Mahmud A, Brown AS, Dalen H, Thorstensen A, Romundstad PR, Aase SA, Stoylen A, Vatten L, Bochenek T, Wita K, Tabor Z, Doruchowska A, Lelek M, Trusz-Gluza M, Hamodraka E, Paraskevaidis I, Karamanou A, Michalakeas C, Vrettou H, Kapsali E, Tsiapras D, Lekakis I, Anastasiou-Nana M, Kremastinos D, Sirugo L, Bottari VE, Licciardi S, Blundo A, Atanasio A, Monte IP, Park CS, Kim JH, Cho JS, Kim MJ, Cho EJ, Ihm SH, Jung HO, Jeon HK, Youn HJ, Kim KS, Fontana A, Taravella L, Zambon A, Trocino G, Giannattasio C, Kalinin A, Alekhin M, Bahs G, Lejnieks A, Kalvelis A, Kalnins A, Shipachovs P, Zakharova E, Blumentale G, Trukshina M, Biering-Sorensen T, Mogelvang R, Haahr-Pedersen S, Schnohr P, Sogaard P, Skov Jensen J, Gargani L, Agoston G, Capati E, Badano L, Moreo A, Costantino MF, Caputo ML, Mondillo S, Sicari R, Picano E, Malev EG, Timofeev EV, Reeva SV, Zemtsovsky EV, Piazza R, Enache R, Roman-Pognuz A, Muraru D, Popescu BA, Leiballi E, Pecoraro R, Antonini-Canterin F, Ginghina C, Nicolosi GL, Sadeghian H, Lotfi_Tokaldany M, Rezvanfard M, Kasemisaeid A, Majidi S, Montazeri M, Saber-Ayad M, Nassar YS, Farhan A, Moussa A, El-Sherif A, Cooper RM, Somauroo JD, Shave RE, Williams KL, Forster J, George C, Bett T, Gaze DC, George KP, Mansencal N, Dupland A, Caille V, Perrot S, Bouferrache K, Vieillard-Baron A, Jouffroy R, Cioroiu SG, Alexe OS, Bobescu E, Rus H, Schiano Lomoriello V, Esposito R, Santoro A, Raia R, Farina F, Ippolito R, Galderisi M, Aburawi EH, Malcus P, Thuring A, Maxedius A, Pesonen E, Nair SV, Joyce E, Lee L, Shrimpton J, Newman E, James PR, Jurcut C, Caraiola S, Jurcut RO, Giusca S, Nitescu D, Amzulescu MS, Copaci I, Popescu BA, Tanasescu C, Ginghina C, Silva Marques J, Silva D, Ferreira F, Ferreira PC, Almeida AG, Martim Martins J, Lopes MG, Bergenzaun L, Chew M, Ersson A, Gudmundsson P, Ohlin H, Borowiec A, Dabrowski R, Wozniak J, Jasek S, Chwyczko T, Kowalik I, Musiej-Nowakowska E, Szwed H, Wen YL, Tian J, Yan L, Cheng H, Yang H, Luo B, Wang J, Kozman H, Villarreal D, Liu K, Karavidas A, Tsiachris D, Lazaros G, Matzaraki V, Xylomenos G, Levendopoulos G, Arapi S, Perpinia A, Matsakas E, Pyrgakis V, Liu YW, Su CT, Tsai WC, Huang JW, Hung KY, Chen JH, Larsson M, Kremer F, Kouznetsova T, Bjallmark A, Lind B, Brodin LA, D'hooge J, Santoro A, Caputo M, Antonelli G, Lisi M, Giacomin E, Mondillo S, Moustafa S, Alharthi M, Kansal M, Deng Y, Chandrasekaran K, Mookadam F, Hayashi SY, Bjallmark A, Larsson M, Nascimento MM, Lindholm B, Lind B, Seeberger A, Nowak J, Riella MC, Brodin LA, Theodosis A, Fousteris E, Tsiaousis G, Krommydas A, Margetis P, Katidis Z, Beldekos D, Argirakis S, Melidonis A, Foussas S, Khaleva O, Onyshchenko O, Lukaschuk E, Sherwi N, Nikitin N, Cleland JGF, Risum N, Jons C, Olsen NT, Valeur N, Kronborg MB, Jensen MT, Fritz-Hansen T, Bruun NE, Hojgaard MV, Sogaard P, Petrini J, Yousry M, Rickenlund A, Liska J, Franco-Cereceda A, Hamsten A, Eriksson P, Caidahl K, Eriksson MJ, Elmstedt N, Lind B, Ferm-Widlund K, Westgren M, Brodin LA, Szymczyk E, Kasprzak JD, Wozniakowski B, Rotkiewicz A, Szymczyk K, Stefanczyk L, Michalski B, Lipiec P, Ring L, Eller T, Deegan P, Rusk R, Urbano Moral JA, Arias JA, Kuvin JT, Patel AR, Pandian NG, Bellsham-Revell H, Bell AJ, Miller O, Greil GF, Simpson J, Moustafa S, Kansal M, Alharthi M, Deng Y, Chandrasekaran K, Mookadam F, Ancona R, Comenale Pinto S, Caso P, Severino S, Nunziata L, Roselli T, Calabro R, Dussault C, Donal E, Lafitte S, Habib G, Reant P, Derumeaux G, Thibault H, Gueret P, Lim P, Kaladaridis A, Agrios IA, Pamboucas CP, Mesogitis SM, Vasiladiotis NV, Bramos DB, Toumanidis STT, Martiniello AR, Santangelo G, Caso P, Pedrizzetti G, Tonti G, Cioppa C, Cavallaro M, Calvi V, Chianese R, Calabro R. Poster session I * Thursday 9 December 2010, 08:30-12:30. European Journal of Echocardiography 2010. [DOI: 10.1093/ejechocard/jeq136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Shalumon KT, Binulal NS, Deepthy M, Jayakumar R, Manzoor K, Nair SV. Preparation, Characterization and Cell Attachment Studies of Electrospun Multi-scale Poly(caprolactone) Fibrous Scaffolds for Tissue Engineering. Journal of Macromolecular Science, Part A 2010. [DOI: 10.1080/10601325.2011.528288] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Salfi J, Savelyev IG, Blumin M, Nair SV, Ruda HE. Direct observation of single-charge-detection capability of nanowire field-effect transistors. Nat Nanotechnol 2010; 5:737-741. [PMID: 20852638 DOI: 10.1038/nnano.2010.180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Accepted: 08/11/2010] [Indexed: 05/29/2023]
Abstract
A single localized charge can quench the luminescence of a semiconductor nanowire, but relatively little is known about the effect of single charges on the conductance of the nanowire. In one-dimensional nanostructures embedded in a material with a low dielectric permittivity, the Coulomb interaction and excitonic binding energy are much larger than the corresponding values when embedded in a material with the same dielectric permittivity. The stronger Coulomb interaction is also predicted to limit the carrier mobility in nanowires. Here, we experimentally isolate and study the effect of individual localized electrons on carrier transport in InAs nanowire field-effect transistors, and extract the equivalent charge sensitivity. In the low carrier density regime, the electrostatic potential produced by one electron can create an insulating weak link in an otherwise conducting nanowire field-effect transistor, modulating its conductance by as much as 4,200% at 31 K. The equivalent charge sensitivity, 4 × 10(-5) e Hz(-1/2) at 25 K and 6 × 10(-5) e Hz(-1/2) at 198 K, is orders of magnitude better than conventional field-effect transistors and nanoelectromechanical systems, and is just a factor of 20-30 away from the record sensitivity for state-of-the-art single-electron transistors operating below 4 K (ref. 8). This work demonstrates the feasibility of nanowire-based single-electron memories and illustrates a physical process of potential relevance for high performance chemical sensors. The charge-state-detection capability we demonstrate also makes the nanowire field-effect transistor a promising host system for impurities (which may be introduced intentionally or unintentionally) with potentially long spin lifetimes, because such transistors offer more sensitive spin-to-charge conversion readout than schemes based on conventional field-effect transistors.
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Affiliation(s)
- J Salfi
- Centre for Advanced Nanotechnology, University of Toronto, 170 College Street, Toronto, Ontario, M5S 3E3, Canada.
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Lakshman LR, Shalumon KT, Nair SV, Jayakumar R, Nair SV. Preparation of Silver Nanoparticles Incorporated Electrospun Polyurethane Nano-fibrous Mat for Wound Dressing. Journal of Macromolecular Science, Part A 2010. [DOI: 10.1080/10601325.2010.508001] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Madhumathi K, Sudheesh Kumar PT, Abhilash S, Sreeja V, Tamura H, Manzoor K, Nair SV, Jayakumar R. Development of novel chitin/nanosilver composite scaffolds for wound dressing applications. J Mater Sci Mater Med 2010; 21:807-813. [PMID: 19802687 DOI: 10.1007/s10856-009-3877-z] [Citation(s) in RCA: 173] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2009] [Accepted: 09/17/2009] [Indexed: 05/28/2023]
Abstract
Antibiotic resistance of microorganisms is one of the major problems faced in the field of wound care and management resulting in complications like infection and delayed wound healing. Currently a lot of research is focused on developing newer antimicrobials to treat wounds infected with antibiotic resistant microorganisms. Silver has been used as an antimicrobial agent for a long time in the form of metallic silver and silver sulfadiazine ointments. Recently silver nanoparticles have come up as a potent antimicrobial agent and are finding diverse medical applications ranging from silver based dressings to silver coated medical devices. Chitin is a natural biopolymer with properties like biocompatibility and biodegradability. It is widely used as a scaffold for tissue engineering applications. In this work, we developed and characterized novel chitin/nanosilver composite scaffolds for wound healing applications. The antibacterial, blood clotting and cytotoxicity of the prepared composite scaffolds were also studied. These chitin/nanosilver composite scaffolds were found to be bactericidal against S. aureus and E. coli and good blood clotting ability. These results suggested that these chitin/nanosilver composite scaffolds could be used for wound healing applications.
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Affiliation(s)
- K Madhumathi
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi, 682 026, India
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Abstract
Marteilia sydneyi is the causative agent of QX disease in Sydney rock oyster, Saccostrea glomerata. It is responsible for disease outbreaks among oysters that occur during summer and can result in up to 95% mortality. QX disease has significantly decreased S. glomerata production in some areas of Australia's eastern seaboard over the past 30 years. Marteilia sydneyi sporulates in the digestive gland of oysters leading to complete disorganization of the infected tissues. The current study used proteomics to identify potential molecular markers of sporulating M. sydneyi infection during a field trial undertaken in the Georges River, Sydney, between December 2006 and May 2007. Early stages of M. sydneyi infection were detected by polymerase chain reaction, whilst cytological examination was used to identify sporulating M. sydneyi in the gut. Protein expression in oyster haemolymph was assessed during the M. sydneyi infection period by two dimensional electrophoresis. Proteome maps identified significant differences in the expression of four proteins in oysters with sporulating M. sydneyi infections.
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Affiliation(s)
- M Simonian
- Department of Biological Sciences, Macquarie University, North Ryde, NSW, Australia
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Payette C, Yu G, Gupta JA, Austing DG, Nair SV, Partoens B, Amaha S, Tarucha S. Coherent three-level mixing in an electronic quantum dot. Phys Rev Lett 2009; 102:026808. [PMID: 19257308 DOI: 10.1103/physrevlett.102.026808] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2008] [Indexed: 05/27/2023]
Abstract
We observe magnetic-field-induced level mixing and quantum superposition phenomena between three approaching single-particle states in a quantum dot probed via the ground state of an adjacent quantum dot by single-electron resonant tunneling. The mixing is attributed to anisotropy and anharmonicity in realistic dot confining potentials. The pronounced anticrossing and transfer of strengths (both enhancement and suppression) between resonances can be understood with a simple coherent level mixing model. Superposition can lead to the formation of a dark state by complete cancellation of an otherwise strong resonance, an effect resembling coherent population trapping in a three-level-system of quantum and atom optics.
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Affiliation(s)
- C Payette
- Institute for Microstructural Sciences M50, NRC, Montreal Road, Ottawa, Ontario, K1A 0R6, Canada
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Tanner MA, Galanello R, Dessi C, Smith GC, Westwood MA, Agus A, Roughton M, Assomull R, Nair SV, Walker JM, Pennell DJ. A randomized, placebo-controlled, double-blind trial of the effect of combined therapy with deferoxamine and deferiprone on myocardial iron in thalassemia major using cardiovascular magnetic resonance. Circulation 2007; 115:1876-84. [PMID: 17372174 DOI: 10.1161/circulationaha.106.648790] [Citation(s) in RCA: 345] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Cardiac complications secondary to iron overload are the leading cause of death in beta-thalassemia major. Approximately two thirds of patients maintained on the parenteral iron chelator deferoxamine have myocardial iron loading. The oral iron chelator deferiprone has been demonstrated to remove myocardial iron, and it has been proposed that in combination with deferoxamine it may have additional effect. METHODS AND RESULTS Myocardial iron loading was assessed with the use of myocardial T2* cardiovascular magnetic resonance in 167 patients with thalassemia major receiving standard maintenance chelation monotherapy with subcutaneous deferoxamine. Of these patients, 65 with mild to moderate myocardial iron loading (T2* 8 to 20 ms) entered the trial with continuation of subcutaneous deferoxamine and were randomized to receive additional oral placebo (deferoxamine group) or oral deferiprone 75 mg/kg per day (combined group). The primary end point was the change in myocardial T2* over 12 months. Secondary end points of endothelial function (flow-mediated dilatation of the brachial artery) and cardiac function were also measured with cardiovascular magnetic resonance. There were significant improvements in the combined treatment group compared with the deferoxamine group in myocardial T2* (ratio of change in geometric means 1.50 versus 1.24; P=0.02), absolute left ventricular ejection fraction (2.6% versus 0.6%; P=0.05), and absolute endothelial function (8.8% versus 3.3%; P=0.02). There was also a significantly greater improvement in serum ferritin in the combined group (-976 versus -233 microg/L; P<0.001). CONCLUSIONS In comparison to the standard chelation monotherapy of deferoxamine, combination treatment with additional deferiprone reduced myocardial iron and improved the ejection fraction and endothelial function in thalassemia major patients with mild to moderate cardiac iron loading.
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Affiliation(s)
- M A Tanner
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Sydney St, London SW3 6NP, UK
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Tanner MA, Galanello R, Dessi C, Westwood MA, Smith GC, Nair SV, Anderson LJ, Walker JM, Pennell DJ. Myocardial iron loading in patients with thalassemia major on deferoxamine chelation. J Cardiovasc Magn Reson 2006; 8:543-7. [PMID: 16755844 DOI: 10.1080/10976640600698155] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Heart failure secondary to myocardial iron loading remains the leading cause of death in thalassemia major (TM). We used cardiovascular magnetic resonance (CMR) to assess the prevalence of myocardial iron overload and ventricular dysfunction in a large cohort of TM patients maintained on conventional chelation treatment with deferoxamine. METHODS A mobile CMR scanner was transported from London, UK, to Sardinia, Italy where 167 TM patients were assessed for myocardial iron loading, B-natriuretic peptide (BNP), and ferritin. In patients with myocardial iron loading CMR assessments of ventricular function were also made. RESULTS Myocardial iron loading (T2* < 20 ms) was present in 108 (65%) patients, which was severe (T2* < 8 ms) in 22 (13%). Impaired (< 56%) left ventricular (LV) ejection fraction (EF) was present in 5%, 20% and 62% of patients with mild, moderate or severe iron loading. Increasing myocardial iron was related to impaired LVEF (Rs = 0.57, p < 0.001), weakly related to serum ferritin (Rs = -0.34, p < 0.001), and not related to liver iron (Rs = 0.11, p = 0.26). BNP was weakly related to myocardial iron (Rs = -0.35, p < 0.001) and was abnormal in only 5 patients. CONCLUSIONS Myocardial siderosis was found in two-thirds of thalassemia major patients on maintenance deferoxamine treatment. This was combined with a high prevalence of impaired LV function, the severity of which tracked the severity of iron deposition. BNP was not useful to assess myocardial siderosis.
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Affiliation(s)
- M A Tanner
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, London, United Kingdom
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Jose S, Nair SV, Thomas S, Karger-Kocsis J. Effect of reactive compatibilisation on the phase morphology and tensile properties of PA12/PP blends. J Appl Polym Sci 2005. [DOI: 10.1002/app.22806] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
This study identifies a complement component C3-like protein in the solitary tunicate, Styela plicata. Three different polyclonal antibodies raised against C3 molecules from two species (humans and the tunicate, Halocynthia roretzi) were used to identify the C3-like protein in S. plicata hemolymph. The C3 cross-reactive protein is a 170kDa heterodimer composed of polypeptides (116 and 80kDa) that have molecular weights comparable to those of C3alpha and C3beta from other species. Amino acid sequencing and amino acid composition analysis confirmed that the C3-like protein from S. plicata is closely related to C3 from H. roretzi.
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Affiliation(s)
- D A Raftos
- Department of Biological Sciences, Macquarie University, NSW 2109, North Ryde, Australia.
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Tujula N, Radford J, Nair SV, Raftos DA. Effects of tributyltin and other metals on the phenoloxidase activating system of the tunicate, Styela plicata. Aquat Toxicol 2001; 55:191-201. [PMID: 11595309 DOI: 10.1016/s0166-445x(01)00175-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Toxic metals, such as tributyltin (TBT), contribute substantially to anthropogenic pollution in many estuarine environments. Animals that live in those environments, particularly invertebrate filter feeders like tunicates, are likely to be exposed to substantial metal contamination. This study investigates the effects of TBT and other metals on the phenoloxidase activity of the estuarine tunicate, Styela plicata, in an effort to identify a biochemical marker of metal pollution. Hemocytes harvested from S. plicata that were exposed to tributyltin or copper in aquaria had significantly enhanced phenoloxidase activities relative to non-exposed controls. This enhanced phenoloxidase activity could be explained by an increased frequency of morula cells, which contain high levels of phenoloxidase's proenzyme, prophenoloxidase. Unlike those from tunicates exposed to metals in aquaria, the phenoloxidase activities of hemocytes incubated with tributyltin in vitro were significantly reduced when compared with hemocytes cultured without tributyltin. The ability of tributyltin to decrease phenoloxidase activity in tissue culture may reflect its known inhibitory effects on calcium-dependent signaling systems such as those involved in the exocytosis of prophenoloxidase from morula cells.
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Affiliation(s)
- N Tujula
- Department of Biological Sciences, Macquarie University, North Ryde, NSW 2109, Australia
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Abstract
This study characterizes humoral opsonins from the tunicate, Pyura stolonifera. The predominant opsonic components in P. stolonifera hemolymph were found to be calcium-dependent lectins with broad carbohydrate specificities. The opsonic lectins were purified by carbohydrate affinity chromatography which eluted a complex pattern of proteins ranging in molecular mass from 80 to >200kDa. Reducing and two dimensional SDS-PAGE indicated that the diversity of mature lectins evident under non-reducing conditions resulted from the differential oligomerization of two polypeptide sub-units (35 and 22kDa). In addition to lectin-mediated opsonic activity, hemolymph was also found to contain proteolytically activated opsonins. These data suggest that multiple, possibly interactive opsonic systems co-exist in P. stolonifera.
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Affiliation(s)
- S Pearce
- Department of Biological Sciences, Macquarie University, NSW, 2109, North Ryde, Australia
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Abstract
Previous studies have identified proteins from tunicates (invertebrate members of the Phylum Chordata) that have physicochemical and functional properties similar to those of the inflammatory cytokine, interleukin 1 (IL-1). Here we characterize one of those proteins from the tunicate, Styela plicata, that can stimulate tunicate and mammalian cell proliferation, activate phagocytosis, increase interleukin 2 (IL-2) secretion by mammalian peripheral blood mononuclear cells and enhance IL-2 receptor (IL-2R) expression by mammalian EL-4.IL-2 cells. Partial amino acid sequence data showed that the S. plicata protein resembles three C-type lectins (TC14, TC14-1 and TC14-2) from a closely related tunicate species, Polyandrocarpa misakiensis. Its similarity to carbohydrate recognition domains (CRDs) from P. misakiensis lectins suggests that the S. plicata protein modulates the activities of mammalian immunocompetent cells by interacting with carbohydrate moieties of glycosylated cell surface receptors.
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Affiliation(s)
- S V Nair
- Department of Biological Sciences, Macquarie University, 2109, North Ryde, NSW, Australia.
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Nair SV, Donovan JA. Creep enhanced adsorbtion of water or aqueous zinc chloride solution increases the creep rate of nylon 6,6. J Appl Polym Sci 2001. [DOI: 10.1002/app.1462] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
Collectins are a sub-family of C-type lectins from mammals and birds that are characterized by their collagen-like domains. The mammalian collectin, mannose binding lectin, has attracted considerable interest because it can activate complement components via a lectin-mediated complement pathway that is independent of immunoglobulins. In this study, we have identified a calcium-dependent lectin from the invertebrate (tunicate), Styela plicata, that bears substantial similarities to mammalian collectins. The tunicate lectin, which was isolated by carbohydrate affinity chromatography, has a reduced apparent molecular mass of 43 kDa. The 43 kDa reduced polypeptide appeared as dimers, trimers and hexamers when analyzed by non-reducing and two-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis, while gel filtration suggested that the native form of the protein was a nonamer. Amino acid sequence and amino acid composition analysis revealed obvious similarities between the tunicate lectin and mammalian collectins, notably the inclusion of a collagenous domain and a short, cysteine bearing N-terminal domain. The identification of a collectin-like protein in an invertebrate such as S. plicata, which does not express immunoglobulin, indicates that lectin-mediated complement pathways may predate the origin of antibodies.
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Affiliation(s)
- S V Nair
- Department of Biological Sciences, Macquarie University, North Ryde, NSW, Australia
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Tewari D, Nair SV, De Ungria MC, Lawrence GL, Hayden M, Love DN, Field HJ, Whalley JM. Immunization with glycoprotein C of equine herpesvirus-1 is associated with accelerated virus clearance in a murine model. Arch Virol 1995; 140:789-97. [PMID: 7794119 DOI: 10.1007/bf01309967] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The glycoprotein C (gC) gene of equine herpesvirus-1 (EHV-1) was expressed in insect cells by a recombinant baculovirus as several products with apparent molecular weights of 66 kDa-80 kDa. The baculovirus EHV-1 gC products were recognised by monoclonal antibody and by EHV-1 convalescent equine sera, indicating conservation of antigenic determinants and confirming this glycoprotein as a target for the equine immune system. Mice immunized with recombinant EHV-1 gC showed accelerated clearance of EHV-1 from respiratory tissues following intranasal challenge. Virus clearance was accompanied by virus specific antibodies and by cell mediated immune responses measured by a delayed type hypersensitivity reaction and lymphocyte stimulation by killed EHV-1 as antigen.
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Affiliation(s)
- D Tewari
- Department of Veterinary Medicine, University of Cambridge, U.K
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Ramaniah LM, Nair SV. Optical absorption in semiconductor quantum dots: A tight-binding approach. Phys Rev B Condens Matter 1993; 47:7132-7139. [PMID: 10004709 DOI: 10.1103/physrevb.47.7132] [Citation(s) in RCA: 100] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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