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Kulkarni, Ashwini N.,Bhalkar, Bhumika N.,Khandare, Rahul V.,Kurade, Mayur B.,Jeon, Byong-Hun,Govindwar, Sanjay P. Society for Bioscience and Bioengineering, Japan 2019 Journal of bioscience and bioengineering Vol. No.
<P>Densitometric high performance thin layer chromatography (HPTLC) quantification method was developed to validate the decolorization/biotransformation of Disperse Orange ERL and dye mixture by lichen <I>Parmelia</I> sp. which release several colored compounds during decolorization process, hence unable to use colorimetric estimation. Percent decolorization of Disperse Orange ERL and dye mixture by lichen <I>Parmelia</I> sp. was observed when estimated using developed HPTLC method. Limit of detection and limit of quantification for both dyes in mixture were obtained as 0.3 and 1 μg/μl, respectively. Area of peak of control Disperse Orange ERL was reduced by 43% after 12 h, 71% after 48 h and upto 82% after 72 h of incubation. Precision and repeatability of data elucidated the % relative standard deviation less than 3 for all the values thus indicating statistically acceptable. Biodegradation of dye and mixture was confirmed with Fourier transform infrared spectroscopy analysis, i.e., altered fingerprinting spectral pattern.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Densitometric quantification of textile dyes biotransformation products. </LI> <LI> Quantification of dye in presence of released colored compounds. </LI> <LI> Reported for the first time in dye decolorization studies. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Boswellic acid suppresses cyclophosphamide induced chromosomal damage in mice
Kuntal Ganguly,N. V. Jagadeesh,Rakesh Singh,B. S. Thippeswami,Ashok D. Taranalli,Anandrao R. Kulkarni 경희대학교 융합한의과학연구소 2011 Oriental Pharmacy and Experimental Medicine Vol.11 No.3
This study was performed to determine whether Boswellic acid suppresses genotoxicity induced by cyclophosphamide in mice. Genotoxicity was induced by the administration of cyclophosphamide (50 mg/kg) in swiss albino mice and was measured by counting the number of micronuclei and observing chromosomal aberration. In test group Boswellic acid was given in the dose of 200 mg/kg and various chromosomal aberration and formation of micronuclei were observed. Boswellic acid in dose of 200 mg/kg significantly (P<0.001) inhibited the cyclophosphamide induced micronucleus formation and also significantly (P<0.001) inhibited chromosomal aberrations in mice. Whereas Boswellic acid alone did not either induce formation of micronuclei or chromosomal aberration in mice. Boswellic acid itself doesn’t have any genotoxic effect and suppresses genotoxicity induced by cyclophosphamide.
Anisotropy and deformation heterogeneity in additive manufactured carbon-reinforced PEEK
Vipin Gupta,N. I. Thiruselvam,D. M. Kulkarni,V. V. Chaudhari,S. Suraj 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.6
Carbon-reinforced polyether ether ketone (C-PEEK) is one of the highperformance thermoplastic polymers used in engineering applications. To manufacture C-PEEK parts, a material extrusion process called fused deposition modeling (FDM) is more preferred than other 3D printing technologies such as material jetting, sheet lamination, VAT photopolymerization, binder jetting, directed energy deposition (DED) and powder bed fusion (PBF) due to its low cost and high efficiency. In FDM, the angle between printing and loading directions, called raster angle, is a known cause of material anisotropy. However, less attention has been paid to bring out the effect of raster angle on local state of strain. We fill this gap using digital image correlation (DIC) and scanning electron microscopy (SEM). Standard specimens made using three different raster angles, namely, 0°, 45°, and 90°, were tested upto failure by fracture. 0° raster angle offers the highest strength, whereas 90° raster angle yields the least strength. All specimens fail by brittle fracture. Strain localization that evolves near interfaces between two beads or layers play the most vital role in the failure mechanism.
Boswellic acid suppresses cyclophosphamide induced chromosomal damage in mice
Ganguly, Kuntal,Jagadeesh, N.V.,Singh, Rakesh,Thippeswami, B.S.,Taranalli, Ashok D.,Kulkarni, Anandrao R. 경희한의학연구센터 2011 Oriental Pharmacy and Experimental Medicine Vol.11 No.3
This study was performed to determine whether Boswellic acid suppresses genotoxicity induced by cyclophosphamide in mice. Genotoxicity was induced by the administration of cyclophosphamide (50 mg/kg) in swiss albino mice and was measured by counting the number of micronuclei and observing chromosomal aberration. In test group Boswellic acid was given in the dose of 200 mg/kg and various chromosomal aberration and formation of micronuclei were observed. Boswellic acid in dose of 200 mg/kg significantly ($P$ <0.001) inhibited the cyclophosphamide induced micronucleus formation and also significantly ($P$ <0.001) inhibited chromosomal aberrations in mice. Whereas Boswellic acid alone did not either induce formation of micronuclei or chromosomal aberration in mice. Boswellic acid itself doesn't have any genotoxic effect and suppresses genotoxicity induced by cyclophosphamide.