方案摘要
方案下载应用领域 | |
检测样本 | |
检测项目 | |
参考标准 |
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
相关产品
NanoBrook 173Plus多角度粒度分析仪
布鲁克海文高灵敏Zeta电位分析仪ZetaPALS
布鲁克海文Zeta电位分析仪 ZetaPlus
布鲁克海文(Brookhaven)多角度粒度分析仪173Pl
EyeTech 激光光阻粒度粒形分析仪
布鲁克海文 多角度粒度及高灵敏Zeta电位分析仪 Omni
布鲁克海文高灵敏度Zeta电位及粒度分析仪90Plus PALS
布鲁克海文Zeta电位及激光粒度分析仪90Plus Zeta
布鲁克海文激光粒度仪90Plus
布鲁克海文广角动/静态激光散射仪BI-200SM
布鲁克海文多角度激光光散射(绝对分子量测定)仪MwA
布鲁克海文圆盘式离心/沉降粒度仪
布鲁克海文高灵敏在线粒度分析仪NanoDLS
布鲁克海文ACOS实时在线粒度检测系统
高浓度粒度分析仪
关注
拨打电话
留言咨询