{"id":{"repo_id":"njit","oai_identifier":"oai:digitalcommons.njit.edu:theses-1349"},"canonical_url":"https://search.dev.ndltd.org/etd/njit/oai:digitalcommons.njit.edu:theses-1349","repository":{"repo_id":"njit","name":"NJIT","base_url":"https://digitalcommons.njit.edu/do/oai/"},"display":{"title":"Thermal and morphological analysis of collagen-plla electrospun blends","abstract":"Electrospinning of bovine Type I collagen and Poly (L-lactic acid) produces blended nanofiber scaffolds that may have application in tissue engineering, wound dressing and drug delivery. The goal of this research work was to produce and characterize blended nanofibers of a protein, collagen, and a synthetic polymer, poly (L-lactic acid). This study focuses on the in-depth analysis of the appearance of the structural relaxation occurring at the glass transition temperature of PLLA in the collagen-PLLA blended electrospun mats. It is speculated that occurrence of this thermal event is more prominent in PLLA with high molecular weight due to the presence of entanglements. It has also been demonstrated that electrospinning leads to the formation of an aligned microstructure of the chains but not a crystalline arrangement. In addition, morphological characterization of the collagen-PLLA nanofiber mats were performed using scanning electron microscope and transmission electron microscope in order to understand the structural features of the PLLA-collagen clectrospun blended filaments. A hypothesis has been developed on the solid state structure of the electrospun PLLA-collagen filament blends and also on the formation of sheath-core morphology in blended nanofibers.","abstract_html":"Electrospinning of bovine Type I collagen and Poly (L-lactic acid) produces blended nanofiber scaffolds that may have application in tissue engineering, wound dressing and drug delivery. The goal of this research work was to produce and characterize blended nanofibers of a protein, collagen, and a synthetic polymer, poly (L-lactic acid). This study focuses on the in-depth analysis of the appearance of the structural relaxation occurring at the glass transition temperature of PLLA in the collagen-PLLA blended electrospun mats. It is speculated that occurrence of this thermal event is more prominent in PLLA with high molecular weight due to the presence of entanglements. It has also been demonstrated that electrospinning leads to the formation of an aligned microstructure of the chains but not a crystalline arrangement. In addition, morphological characterization of the collagen-PLLA nanofiber mats were performed using scanning electron microscope and transmission electron microscope in order to understand the structural features of the PLLA-collagen clectrospun blended filaments. A hypothesis has been developed on the solid state structure of the electrospun PLLA-collagen filament blends and also on the formation of sheath-core morphology in blended nanofibers.","abstract_has_math":false,"creators":["Banerjee, Angana"],"institution":null,"degree_name":"Master of Science in Biomedical Engineering - (M.S.)","degree_level":null,"degree_discipline":"Biomedical Engineering","degree_department":null,"school":null,"contributors":["Treena Livingston Arinzeh","George Collins","William Corson Hunter"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2008,"date_issued":"2008-05-31T07:00:00Z","date_published":"2008-05-31T07:00:00Z","updated_at":"2026-07-24T03:23:16Z","subjects":["Nanofibers","Structural relaxation","Glass transition temperature","Biomedical Engineering and Bioengineering"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.njit.edu/theses/350","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Treena Livingston Arinzeh","George Collins","William Corson Hunter"]},{"key":"dc:creator","label":"Author","values":["Banerjee, Angana"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biomedical Engineering"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Biomedical Engineering - (M.S.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Nanofibers","Structural relaxation","Glass transition temperature","Biomedical Engineering and Bioengineering"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.njit.edu/theses/350"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Electrospinning of bovine Type I collagen and Poly (L-lactic acid) produces blended nanofiber scaffolds that may have application in tissue engineering, wound dressing and drug delivery. The goal of this research work was to produce and characterize blended nanofibers of a protein, collagen, and a synthetic polymer, poly (L-lactic acid). This study focuses on the in-depth analysis of the appearance of the structural relaxation occurring at the glass transition temperature of PLLA in the collagen-PLLA blended electrospun mats. It is speculated that occurrence of this thermal event is more prominent in PLLA with high molecular weight due to the presence of entanglements. It has also been demonstrated that electrospinning leads to the formation of an aligned microstructure of the chains but not a crystalline arrangement. In addition, morphological characterization of the collagen-PLLA nanofiber mats were performed using scanning electron microscope and transmission electron microscope in order to understand the structural features of the PLLA-collagen clectrospun blended filaments. A hypothesis has been developed on the solid state structure of the electrospun PLLA-collagen filament blends and also on the formation of sheath-core morphology in blended nanofibers."]},{"key":"dc:title","label":"Title","values":["Thermal and morphological analysis of collagen-plla electrospun blends"]}]}],"canonical_facts":{"dc:contributor":["Treena Livingston Arinzeh","George Collins","William Corson Hunter"],"dc:creator":["Banerjee, Angana"],"dc:description.abstract":["Electrospinning of bovine Type I collagen and Poly (L-lactic acid) produces blended nanofiber scaffolds that may have application in tissue engineering, wound dressing and drug delivery. The goal of this research work was to produce and characterize blended nanofibers of a protein, collagen, and a synthetic polymer, poly (L-lactic acid). This study focuses on the in-depth analysis of the appearance of the structural relaxation occurring at the glass transition temperature of PLLA in the collagen-PLLA blended electrospun mats. It is speculated that occurrence of this thermal event is more prominent in PLLA with high molecular weight due to the presence of entanglements. It has also been demonstrated that electrospinning leads to the formation of an aligned microstructure of the chains but not a crystalline arrangement. In addition, morphological characterization of the collagen-PLLA nanofiber mats were performed using scanning electron microscope and transmission electron microscope in order to understand the structural features of the PLLA-collagen clectrospun blended filaments. A hypothesis has been developed on the solid state structure of the electrospun PLLA-collagen filament blends and also on the formation of sheath-core morphology in blended nanofibers."],"dc:identifier":["https://digitalcommons.njit.edu/theses/350"],"dc:subject":["Nanofibers","Structural relaxation","Glass transition temperature","Biomedical Engineering and Bioengineering"],"dc:title":["Thermal and morphological analysis of collagen-plla electrospun blends"],"dc:type":["Thesis"],"thesis:degree_discipline":["Biomedical Engineering"],"thesis:degree_name":["Master of Science in Biomedical Engineering - (M.S.)"]},"updated_at":"2026-07-24T03:23:16Z"}