ABSTRACT
The aim of this study is to develop environment friendly packaging and life style materials for replacing conventionally explored hazardous synthetic materials. The study carried out by using raw jute fibre reinforced thermoplastic corn starch (TPCS) is to develop biodegradable flexible composite materials. Flexible composites are prepared by maintaining with different fibre content (30 %, 40 % and 50 wt%). A thin coating of polyurethane based formulation is applied on one side of the developed composite to make it water resistant. Composite samples are examined in terms of their tensile properties, tear resistance, folding endurance, water absorbency, capillary action etc. The results show that flexible composites, having 50 % fibre content have tensile strength of 12.8 MPa and 12 MPa at cross and machine direction respectively compared to 3.1 MPa for the TPCS film. The Water drop test on the coated side of the developed material concluded that there is no water penetration even after 60 min of wetting. The interaction between two hydrophilic components is established with FTIR analysis. The XRD analysis was carried out to find the crystallinity of TPCS, Jute fibre and composite samples. Surface morphology and fibre/matrix interaction is observed by SEM. The detail chemical mechanism involved of fibre matrix interaction also been postulated. The scientific finding shows that the developed flexible material can be suitable for making packaging and life style items.
Subject(s)
Starch , Tensile Strength , Starch/chemistry , Water/chemistry , Polyurethanes/chemistry , Materials TestingABSTRACT
Oral intubation of culture filtrates of Aspergillus flavus and A. terreus produced hepatocellular damage in albino rats in the form of perilobular hypertrophy of the parenchymal cells and vacuolar degeneration of cytoplasm. Focal necrosis and early periportal fibrosis were also evident.
Subject(s)
Aspergillus/pathogenicity , Liver Diseases/etiology , Mycotoxins/toxicity , Animals , Aspergillus/metabolism , Aspergillus flavus/metabolism , Aspergillus flavus/pathogenicity , Liver Diseases/pathology , Male , Rats , Seeds/microbiologyABSTRACT
The oral intubation of culture filtrates produced nephrotoxic damages in the form of marked capillaritis, shrinkage and early fibrosis of glomeruli. Hypertrophy and degeneration of tubular epithelium were also evident. The spleen of treated animals revealed subacute splenitis in the form of congestion of the splenic sinuses.
Subject(s)
Mycotoxins/toxicity , Animals , Aspergillus , Aspergillus flavus , Kidney Diseases/chemically induced , Kidney Tubules/pathology , Rats , Spleen/pathologySubject(s)
Diarrhea, Infantile/microbiology , Escherichia coli/pathogenicity , Animals , Cells, Cultured , Child, Preschool , Guinea Pigs , Humans , Infant , Infant, Newborn , Mice , SerotypingSubject(s)
Oxandrolone/toxicity , Adult , Age Factors , Aged , Arthritis/drug therapy , Aspartate Aminotransferases/blood , Blood Chemical Analysis , Body Weight , Chemical and Drug Induced Liver Injury , Diabetes Mellitus/drug therapy , Electrocardiography , Evaluation Studies as Topic , Female , Humans , Infections/drug therapy , Liver Function Tests , Male , Mental Disorders/drug therapy , Middle Aged , UrineABSTRACT
A preliminary report on cultivation of Mycobacterium leprae in artificial media is reported.The work suggests that the modified medium used in this work may help in cultivating Mycobacteria leprae
