http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : T. Jagadeesh (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
T. Yeswanth Sai,P. Jagadeesh 한국탄소학회 2023 Carbon Letters Vol.33 No.6
Graphene oxide (GO) and ultrafine slag (UFS) have been applied to reinforce cement mortar cubes (CMC) in this research. The consequences of GO and UFS on the mechanical attributes of the CMC were explored through experimental investigations. Established on the results, at the 28 days of hydration, the CMC compressive and flexural strength with 0.03% of GO and 10% UFS were 89.8 N/mm2 and 9.1 N/mm2, respectively. Furthermore, the structural changes of CMC with GO and UFS were qualitatively analysed with instrumental techniques such as scanning electron microscope (SEM), X-ray fluorescence (XRF), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), FT Raman spectroscopy, atomic force microscopy (AFM), and 27Al, 29Si-Nuclear magnetic resonance spectroscopy (NMR). SEM results reported that GO and UFS formed an aggregated nanostructure that improved the microstructural properties of the CMC. TGA analysis revealed the quantum of calcium hydrate and bound water accomplished by supplementing GO bound to the UFS aggregates. FT-IR analysis of the CMC samples confirmed the ‘O-’comprising functional groups of GO which expedited the formation of complexes between calcium carbonate ( CaCO3) and UFS. 0.03% GO was the optimum dosage that enhanced the compressive and flexural attributes when combined with 10% UFS in CMC.
-
Shukla, S.T.,Kulkarni, V.H.,Habbu, P.V.,Jagadeesh, K.S.,Patil, B.S.,Smita, D.M. 경희한의학연구센터 2012 Oriental Pharmacy and Experimental Medicine Vol.12 No.2
Endophytic fungi are a rich source of novel organic compounds with interesting biological activities and a high level of biodiversity. In the present investigation, an attempt has been made to isolate, characterize and screen the Tulsi (Ocimum sanctum Linn.) root fungal endophytic fractions (TRF) for hepatoprotective and antioxidant activities. Endophytic fungi from Ocimum sanctum Linn. roots were isolated and cultured aseptically in PDA media. The full fledged grown fungus cultures were fermented in potato dextrose broth and fractionated using ethyl acetate. TRF-1 and TRF-2 were subjected free radical scavenging activities against 2,2-diphenyl-1-picrylhydrazyl, hydroxyl free radicals and reducing power assay. TRF-1 was found to be potential free radical scavenger with $IC_{50}$ values of $71.83{\mu}g/ml$ for DPPH and $110.85{\mu}g/ml$ for hydroxyl radical respectively. TRF-1 and TRF-2 were further assessed for hepatoprotective activity in $CCl_4$ induced hepatotoxicity in-vivo. Results showed that TRF-1 (200 mg/kg p.o.) and TRF-2 (200 mg/kg p.o.) significantly reversed the actions of carbon tetrachloride induced hepatotoxicity, as evident by restoration of serum AST, ALT, ALP, bilirubin, triglycerides and protein level to normal values as compared to $CCl_4$ treated group. Restoration of altered LPO (p<0.001), GSH (p<0.01) and catalase (p<0.01) by TRF-1 suggests that the hepatoprotective activity may be attributed to its antioxidant action. This was further supported by histopathological studies. TRF-1 was subjected to rDNA sequencing studies by PCR technique. Based on the morphological and molecular characterization, the fungus was identified as Paecilomyces variotti Bain. Therefore, endophytes from medicinal plants represent great potential for the discovery of new pharmacologically active metabolites.
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
