发明名称 |
Particles comprising hollow surface-enhanced spectroscopy (SES)-active core for long wavelength SERS |
摘要 |
Embodiments include a particle comprising a surface enhanced spectroscopy (SES)-active core and a SES-active reporter molecule associated with the SES-active core wherein said particle has a measurable SES spectrum when excited by incident light having a wavelength of at least 1400 nm. Alternative embodiments include methods of manufacturing said particle and methods of tagging a material with said particle. The particle may include an SES-active core which supports plasmon resonance at a wavelength of at least 1400 nm. The particle may comprise an anisotropic core. The particle may include an SES-active reporter molecule which is resonant at one or more wavelengths greater than or equal to 1400 nm. |
申请公布号 |
US9239327(B2) |
申请公布日期 |
2016.01.19 |
申请号 |
US201013319648 |
申请日期 |
2010.05.18 |
申请人 |
SICPA Holding SA |
发明人 |
Natan Michael J.;Freeman Richard Griffith;Piotti Marcelo Eduardo;Doering William E.;Tam Felicia |
分类号 |
G01N37/00;G01N33/532;G01N21/65;G01N33/28 |
主分类号 |
G01N37/00 |
代理机构 |
Swanson & Bratschun, L.L.C. |
代理人 |
Swanson & Bratschun, L.L.C. |
主权项 |
1. A particle comprising:
a hollow surface-enhanced spectroscopy (SES)-active core comprising;
a hollow metal inner layer;a dielectric layer formed over the exterior of the hollow inner layer; anda metal outer layer formed over the exterior of the dielectric layer; a SES-active reporter molecule doped within the dielectric layer of said SES-active core wherein the SES-active reporter molecule comprises at least one of 4,4′-azopyridine, 4,4′-diethynylazobenzene, 4-(4-quinolylazo)pyridine, 4-(4-ethynylphenylazo)pyridine, 5-(4-pyridylazo)imidazole and 3-(4-pyridylazo)thiophene, 5-(4-pyridylazo)thiazole, and wherein said particle has a measurable SES spectrum when excited by incident light having a wavelength of at least 1400 nm. |
地址 |
CH |