2012/03/01 11:20
阅读:698
分享:方案摘要:
产品配置单:
GC7900气相色谱仪
型号: GC7900
产地: 上海
品牌: 天美
¥5万 - 10万
参考报价
联系电话
下载本篇解决方案:
NanoBrook产品应用-12-ZetaPALS
文献名: Structural, morphological and optical properties of Bi NPs obtained by laser ablation and their selective detection of L-cysteine 作者: Ramon Gabriel Teixeira Rosaa, Celso de Araujo Duartea , Wido Herwig Schreinera, Ney Pereira Mattoso Filhoa, Arandi Ginane Bezerra Jr.b, Andersson Barisonc, Fernanda Maria Marins Ocamposc a Departamento de Física, Universidade Federal do Paraná Centro Politécnico, CP 19044, 81531-990 Curitiba (PR), Brazil b Departamento Acadêmico de Física, Universidade Tecnológica Federal do Paraná, 80230-901 Curitiba (PR), Brazil c Departamento de Química, Universidade Federal do Paraná Centro Politécnico, CP 19081, 81531-990 Curitiba (PR), Brazil 摘要:In the present work we show the results of the investigation of the properties of bismuth nanoparticles (NPs) obtained by the laser ablation in water. The samples were characterized by various techniques: UV/vis spectroscopy, dynamic light scattering, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, nuclear magnetic resonance and zeta potential. The NPs were metallic and surface oxidated, exhibiting absorption peak at 257 nm due to the surface plasmon resonance. The interaction between the NPs and various amino acids was studied and revealed a selective sensibility to cysteine on a range of concentration from 80 to 720 μM, which we attribute to a dimerization of cysteine to cystine probably complexed to the nanoparticle surface by electrostatic interactions, leading to the modification of the NP absorption spectrum. 关键词:Bismuth; Nanoparticles; Laser ablation; Cysteine
2015/04/16
安捷伦 Seahorse XF 分析试剂盒与试剂
安捷伦提供多种独特的高质量 Seahorse XF 分析试剂盒、试剂和培养基,用于研究细胞能量代谢功能并实时评估线粒体和糖酵解功能。以简化实验程序和提高研究效率为设计宗旨,使用这些试剂盒能让您简捷地获得高质量恒定的数据。结合安捷伦出色的技术服务,这些试剂盒将极大地提高您的 XF 实验效率和体验。
医疗/卫生
2019/07/18
布鲁克三维X射线显微镜在药物与医疗器械领域的应用
三维X射线显微镜是当前获取样品内部三维结构最有力的工具之一,而且作为无损的非破坏成像技术,它适用于各种形态的样品,无需包埋,镀层或切片等复杂的样品前处理。布鲁克skyscan系列三维X射线纤维成像系统,包含稳定易用的高分辨率成像设备,功能强大的软件套装,可为不同领域的应用提供完善的解决方案。 我们为大家带来桌面型三维X射线显微镜在药物与医疗器械领域的应用介绍。
医疗/卫生
2021/11/18
Thermo Scientific Orion 8030cX 二氧化硅分析仪
二氧化硅是用于检测、控制和尽量减少涡轮机、换热器和锅炉结垢的一种关键度量。在线实时测量活性二氧化硅可尽量降低因结垢而产生的维修/更换成本,实现安全高效的长期运行,这款在线二氧化硅分析仪可用于对二氧化硅超标的生产用水的去除或回收进行即时或自动的决策。连续实时二氧化硅监测可快速通知离子交换树脂的RO穿透或饱和情况,从而使系统效率最大化,尽量减少维修停机时间。Orion 8030cX 在线二氧化硅分析仪可配置为在二氧化硅峰值出现时发送警告/警报或测量数据来警告用户,触发纠正措施,防止下游出现问题。
环保
2021/09/29