Natarajan T S - Academia.edu (original) (raw)

Papers by Natarajan T S

Research paper thumbnail of Does the "Complex" Wave Function in Quantum Mechanics Represent Anything "Real" at all

Speculations, Supplement of International Journal of Quantum Foundations, 2023

"Quantum Reconstruction" attempts to rebuild the highly successful Quantum Mechanics (QM) from sc... more "Quantum Reconstruction" attempts to rebuild the highly successful Quantum Mechanics (QM) from scratch to understand the "real" meaning of its mathematical structure. In addition, perhaps, we must re-look at the role the constant 'c' plays in physics. It would be shown here that this constant has a more crucial role at the foundations than what Relativity envisaged. It was Einstein, who postulated in his Special Theory of Relativity (SR), that the velocity of light is invariant for all inertial observers! This is counter-intuitive. Another mystery from QM is Schrodinger's "zitterbewegung" (ZB) phenomenon which is a mathematical extension of Dirac's free electron theory. By integrating these two concepts into physics at the foundational level we can rebuild a fairly consistent model which seems to unify SR and QM by giving a geometrical interpretation to the "complex wave-function" as representing a helical trajectory of particles like electrons. Helix being a geodesic on a cylinder accommodates "quantization of energy" and is a three-dimensional wave having all the properties that we are familiar with the 2D wave. Thus by postulating an internal structure to these fundamental particles consistent with ZB, many of the results of QM and SR which are at present purely based on intuitive mathematics, can be understood in a simple and "realistic" way.

Research paper thumbnail of Development and Characterization of Electropsun Poly(propylene carbonate) Ultrathin Fibers as Tissue Engineering Scaffolds

Advanced Engineering Materials, 2011

Electrospinning is a desired method to produce ultrathin fibers for tissue engineering. In order ... more Electrospinning is a desired method to produce ultrathin fibers for tissue engineering. In order to mimic the nanofibrous structure of the extracellular matrix (ECM) poly(propylene carbonate) ultrathin fibers were electrospun using N,N‐dimethyl acetamide as solvent. Cationic surfactant, cetyl trimethyl ammonium bromide, was found to aid in the formation of beadless fibers of poly(propylene carbonate). Electrospinning parameters viz. concentration of polymer and that of the surfactant used as an additive, flow rate, electrostatic field, and effect of inner diameter of the needle were investigated and optimized. Scanning electron microscopy showed porous scaffold and fibers of diameter ranging from nano‐ to submicron range. FTIR spectroscopy and thermal analysis of the obtained fibers ensured the complete evaporation of solvent and optimal thermal stability of fibers for tissue engineering applications. The prepared fibers possess Young's modulus of 10.19 and 26.39 GPa with the te...

Research paper thumbnail of Electrospinning of poly (3-hydroxybutyric acid) and gelatin blended thin films: fabrication, characterization, and application in skin regeneration

Research paper thumbnail of Development and characterization of coaxially electrospun gelatin coated poly (3-hydroxybutyric acid) thin films as potential scaffolds for skin regeneration

Materials Science and Engineering: C, 2013

The morphology of fibers synthesized through electrospinning has been found to mimic extracellula... more The morphology of fibers synthesized through electrospinning has been found to mimic extracellular matrix. Coaxially electrospun fibers of gelatin (sheath) coated poly (3-hydroxybutyric acid) (PHB) (core) was developed using 2,2,2 trifluoroethanol(TFE) and 1,1,1,3,3,3 hexafluoro-2-propanol(HFIP) as solvents respectively. The coaxial structure and coating of gelatin with PHB fibers was confirmed through transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Thermal stability of the coaxially electrospun fibers was analyzed using thermogravimetric analysis(TGA), differential scanning calorimetry(DSC) and differential thermogravimetric analysis(DTA). Complete evaporation of solvent and gelatin grafting over PHB fibers was confirmed through attenuated total reflection-Fourier transformed infrared spectroscopy (ATR-FTIR). The coaxially electrospun fibers exhibited competent tensile properties for skin regeneration with high surface area and porosity. In vitro degradation studies proved the stability of fibers and its potential applications in tissue engineering. The fibers supported the growth of human dermal fibroblasts and keratinocytes with normal morphology indicating its potential as a scaffold for skin regeneration.

Research paper thumbnail of Preparation and characterization of electrospun pullulan/montmorillonite nanofiber mats in aqueous solution

Carbohydrate Polymers, 2009

Pullulan (PULL)/montmorillonite clay (MMT) nanofiber blend mats with various weight ratios have b... more Pullulan (PULL)/montmorillonite clay (MMT) nanofiber blend mats with various weight ratios have been fabricated by the electrospinning technique in aqueous solution. The PULL/MMT nanofiber mats are characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and mechanical measurements. The study shows that the

Research paper thumbnail of Does the "Complex" Wave Function in Quantum Mechanics Represent Anything "Real" at all

Quantum Speculations, 2023

"Quantum Reconstruction" attempts to rebuild the highly successful Quantum Mechanics (QM) from sc... more "Quantum Reconstruction" attempts to rebuild the highly successful Quantum Mechanics (QM) from scratch to understand the "real" meaning of its mathematical structure. In addition, perhaps, we must re-look at the role the constant 'c' plays in physics. It would be shown here that this constant has a more crucial role at the foundations than what Relativity envisaged. It was Einstein, who postulated in his Special Theory of Relativity (SR), that the velocity of light is invariant for all inertial observers! This is counter-intuitive. Another mystery from QM is Schrodinger's "zitterbewegung" (ZB) phenomenon which is a mathematical extension of Dirac's free electron theory. By integrating these two concepts into physics at the foundational level we can rebuild a fairly consistent model which seems to unify SR and QM by giving a geometrical interpretation to the "complex wave-function" as representing a helical trajectory of particles like electrons. Helix being a geodesic on a cylinder accommodates "quantization of energy" and is a three-dimensional wave having all the properties that we are familiar with the 2D wave. Thus by postulating an internal structure to these fundamental particles consistent with ZB, many of the results of QM and SR which are at present purely based on intuitive mathematics, can be understood in a simple and "realistic" way.

Research paper thumbnail of TSN_FullPaper.pdf

Research paper thumbnail of Does the "Complex" Wave Function in Quantum Mechanics Represent Anything "Real" at all

Speculations, Supplement of International Journal of Quantum Foundations, 2023

"Quantum Reconstruction" attempts to rebuild the highly successful Quantum Mechanics (QM) from sc... more "Quantum Reconstruction" attempts to rebuild the highly successful Quantum Mechanics (QM) from scratch to understand the "real" meaning of its mathematical structure. In addition, perhaps, we must re-look at the role the constant 'c' plays in physics. It would be shown here that this constant has a more crucial role at the foundations than what Relativity envisaged. It was Einstein, who postulated in his Special Theory of Relativity (SR), that the velocity of light is invariant for all inertial observers! This is counter-intuitive. Another mystery from QM is Schrodinger's "zitterbewegung" (ZB) phenomenon which is a mathematical extension of Dirac's free electron theory. By integrating these two concepts into physics at the foundational level we can rebuild a fairly consistent model which seems to unify SR and QM by giving a geometrical interpretation to the "complex wave-function" as representing a helical trajectory of particles like electrons. Helix being a geodesic on a cylinder accommodates "quantization of energy" and is a three-dimensional wave having all the properties that we are familiar with the 2D wave. Thus by postulating an internal structure to these fundamental particles consistent with ZB, many of the results of QM and SR which are at present purely based on intuitive mathematics, can be understood in a simple and "realistic" way.

Research paper thumbnail of Development and Characterization of Electropsun Poly(propylene carbonate) Ultrathin Fibers as Tissue Engineering Scaffolds

Advanced Engineering Materials, 2011

Electrospinning is a desired method to produce ultrathin fibers for tissue engineering. In order ... more Electrospinning is a desired method to produce ultrathin fibers for tissue engineering. In order to mimic the nanofibrous structure of the extracellular matrix (ECM) poly(propylene carbonate) ultrathin fibers were electrospun using N,N‐dimethyl acetamide as solvent. Cationic surfactant, cetyl trimethyl ammonium bromide, was found to aid in the formation of beadless fibers of poly(propylene carbonate). Electrospinning parameters viz. concentration of polymer and that of the surfactant used as an additive, flow rate, electrostatic field, and effect of inner diameter of the needle were investigated and optimized. Scanning electron microscopy showed porous scaffold and fibers of diameter ranging from nano‐ to submicron range. FTIR spectroscopy and thermal analysis of the obtained fibers ensured the complete evaporation of solvent and optimal thermal stability of fibers for tissue engineering applications. The prepared fibers possess Young's modulus of 10.19 and 26.39 GPa with the te...

Research paper thumbnail of Electrospinning of poly (3-hydroxybutyric acid) and gelatin blended thin films: fabrication, characterization, and application in skin regeneration

Research paper thumbnail of Development and characterization of coaxially electrospun gelatin coated poly (3-hydroxybutyric acid) thin films as potential scaffolds for skin regeneration

Materials Science and Engineering: C, 2013

The morphology of fibers synthesized through electrospinning has been found to mimic extracellula... more The morphology of fibers synthesized through electrospinning has been found to mimic extracellular matrix. Coaxially electrospun fibers of gelatin (sheath) coated poly (3-hydroxybutyric acid) (PHB) (core) was developed using 2,2,2 trifluoroethanol(TFE) and 1,1,1,3,3,3 hexafluoro-2-propanol(HFIP) as solvents respectively. The coaxial structure and coating of gelatin with PHB fibers was confirmed through transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Thermal stability of the coaxially electrospun fibers was analyzed using thermogravimetric analysis(TGA), differential scanning calorimetry(DSC) and differential thermogravimetric analysis(DTA). Complete evaporation of solvent and gelatin grafting over PHB fibers was confirmed through attenuated total reflection-Fourier transformed infrared spectroscopy (ATR-FTIR). The coaxially electrospun fibers exhibited competent tensile properties for skin regeneration with high surface area and porosity. In vitro degradation studies proved the stability of fibers and its potential applications in tissue engineering. The fibers supported the growth of human dermal fibroblasts and keratinocytes with normal morphology indicating its potential as a scaffold for skin regeneration.

Research paper thumbnail of Preparation and characterization of electrospun pullulan/montmorillonite nanofiber mats in aqueous solution

Carbohydrate Polymers, 2009

Pullulan (PULL)/montmorillonite clay (MMT) nanofiber blend mats with various weight ratios have b... more Pullulan (PULL)/montmorillonite clay (MMT) nanofiber blend mats with various weight ratios have been fabricated by the electrospinning technique in aqueous solution. The PULL/MMT nanofiber mats are characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and mechanical measurements. The study shows that the

Research paper thumbnail of Does the "Complex" Wave Function in Quantum Mechanics Represent Anything "Real" at all

Quantum Speculations, 2023

"Quantum Reconstruction" attempts to rebuild the highly successful Quantum Mechanics (QM) from sc... more "Quantum Reconstruction" attempts to rebuild the highly successful Quantum Mechanics (QM) from scratch to understand the "real" meaning of its mathematical structure. In addition, perhaps, we must re-look at the role the constant 'c' plays in physics. It would be shown here that this constant has a more crucial role at the foundations than what Relativity envisaged. It was Einstein, who postulated in his Special Theory of Relativity (SR), that the velocity of light is invariant for all inertial observers! This is counter-intuitive. Another mystery from QM is Schrodinger's "zitterbewegung" (ZB) phenomenon which is a mathematical extension of Dirac's free electron theory. By integrating these two concepts into physics at the foundational level we can rebuild a fairly consistent model which seems to unify SR and QM by giving a geometrical interpretation to the "complex wave-function" as representing a helical trajectory of particles like electrons. Helix being a geodesic on a cylinder accommodates "quantization of energy" and is a three-dimensional wave having all the properties that we are familiar with the 2D wave. Thus by postulating an internal structure to these fundamental particles consistent with ZB, many of the results of QM and SR which are at present purely based on intuitive mathematics, can be understood in a simple and "realistic" way.

Research paper thumbnail of TSN_FullPaper.pdf