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| 1 | Luminescence properties of near-UV excitable yellow-orange light emitting warm CaSrAl_2SiO_7:Sm^(3+) phosphors显示文摘Single-phase CaSrAl_2 SiO_7:Sm^(3+) phosphors were synthesized by traditional high temperature solid state reaction method. Formation of samples and phase analysis were confirmed by X-ray diffraction technique. Morphology was done by field emission scanning electron microscopy and elemental compositions were confirmed by energy dispersive X-ray analysis. Present phosphors have tetragonal crystallography with space group P42_1 m. Average crystallite size was calculated by using Scherrer and Williamson-Hall method. Photoluminescence study of CaSrAl_2 SiO_7:Sm^(3+) phosphor was investigated.Under different excitation wavelengths, PL spectra consist of four emission bands at 564, 570, 601 and650 nm. The emission bands located at 564 and 570 nm are associated with the transition ~4 G_(5/2)→~6 H_(5/2)while emission bands at 601 and 650 nm are due to ~4 G_(5/2)→~6 H_(7/2) and ~4 G_(5/2)→~6 H_(9/2),respectively.Intense emission was obtained when phosphor was excited under 404 nm wavelength. Non-radiative energy transfer process involved in concentration quenching, was also discussed. CIE coordinate is found in yellow-orange region, hence CaSrAl_2SiO_7:Sm^(3+) phosphors emit yellow-orange light when efficiently excited by near UV(~400 nm) LED chip. Color purity and CCT of the phosphor were determined; CCT suggests that present phosphor is a good candidate as a warm yellow-orange color emitting phosphor. Effect of different heating rates and different UV exposure time on the TL glow curve of the phosphor was investigated. Activation energies and kinetic parameters for different traps were calculated by using peak shape method. TL emission spectrum was also recorded. Present article explains all the possible mechanisms associated with luminescence process in CaSrAl_2 SiO_7:Sm^(3+) phosphors. | Shweta Sharma Nameeta Brahme D.P.Bisen Pradeep Dewangan | 2019 | Journal of Rare Earths2019，37，4： | 3 |
| 2 | pEGFP-N_1-BMP_2真核表达载体的构建及其经超声微泡介导转染HPDLFs后的表达显示文摘目的构建pEGFP-N1-BMP2真核表达质粒,并检测其经超声微泡转基因技术转染人牙周膜成纤维细胞(HPDLFs)后的瞬时表达情况。方法从人胎盘滋养层细胞系中提取总RNA,采用RT-PCR方法获得目的基因人骨形成蛋白-2(hBMP2)基因片段,连接pMD19-T载体并测序正确后与真核荧光表达载体pEGFP-N1连接,酶切鉴定后利用超声微泡转基因技术转染入HPDLFs中,通过荧光显微镜和RT-PCR检测目的基因在HPDLFs中的表达。结果成功克隆人BMP2基因,重组质粒pEGFP-N1-BMP2经PCR及双酶切鉴定均证实hBMP2基因已与pEGFP-N1正确重组。pEGFP-N1-BMP2经超声微泡转染HPDLFs后,通过绿色荧光观察和RT-PCR检测证实hBMP2能够在体外培养的HPDLFs内有效的转录和瞬时表达。结论成功构建pEG-FP-N1-BMP2真核表达载体,通过超声微泡转基因技术成功转染入HPDLFs并得到有效表达,为进一步研究该质粒与超声微泡转基因技术在牙周再生基因治疗中的应用提供实验基础。 | 仲琳 钟晓波 张云燕 骆书美 Nameeta Shrestha 齐进 李春光 | 2010 | 重庆医学2010，39，9： | 3 |
| 3 | Autophagy in pancreatic cancer: an emerging mechanism of cell death显示文摘 | MujumdarJ Nameeta M Saluja L | | Autophagy0，6，7： | 1 |
| 4 | TRAIL and Triptolide: An Effective Combination that Induces Apoptosis in Pancreatic Cancer Cells显示文摘 | Daniel Borja-Cacho Yumi Yokoyama Rohit K. Chugh Nameeta R. Mujumdar Vikas Dudeja Kimberly A. Clawson Rajinder K. Dawra Ashok K. Saluja Selwyn M. Vickers | 2010 | Journal of Gastrointestinal Surgery2010，，2： | 1 |
| 5 | Autophagy in pancreatic cancer显示文摘 | Nameeta Mujumdar Ashok K. Saluja | 2010 | Autophagy2010，，7： | 1 |
| 6 | Chronic Disease and Its Risk Factors Among Refugees and Asylees in Massachusetts,2001-2005显示文摘 | Nameeta M.Dookeran | | 0，，03： | 1 |
| 7 | Autophagy in pancreatic cancer: an emerging mechanism of cell death 显示文摘 | Mujumdar J Nameeta M Saluja L | 2010 | Autophagy2010，6，7： | 1 |
| 8 | Triptolide Induces the Expression of miR-142-3p: A Negative Regulator of Heat Shock Protein 70 and Pancreatic Cancer Cell Proliferation显示文摘 | Tiffany N. MacKenzie Nameeta Mujumdar Sulagna Banerjee Veena Sangwan Aaron Sarver Selwyn Vickers Subbaya Subramanian Ashok K. Saluja | 2013 | Molecular Cancer Therapeutics2013，，7： | 1 |
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