
Pennsylvania State Employees' Retirement System
Established in 1923, the Pennsylvania State Employees' Retirement System is one of the nation's oldest and largest statewide retirement plans for public employees. Our mission is to prepare …
Shape-controlled asymmetric bowl-like PDA@Au substrates for …
In this study, we present a novel emulsion-induced interface-anisotropic assembly strategy to synthesize bowl-like mesoporous polydopamine (PDA) particles, which exhibit high sensitivity …
The Convenience of Polydopamine in Designing SERS Biosensors …
2023年5月10日 · This review mainly discussed the application potential of PDA, a biomimetic polymer with rich functions, in the design of new, sensitive, and specific SERS sensors. PDA …
A colorimetric and SERS dual-signal ... - ScienceDirect
In this study, anti-TDF monoclonal antibody (mAb) was combined with Au DTNB @PDA as SERS probe, and a colorimetric and SERS dual-signal immunochromatography was designed to …
In situ construction of Fe3O4@PDA@Au multi hotspot SERS …
2023年11月5日 · A highly active SERS substrate with 3D hot spot structure was constructed using PDA coated Fe 3 O 4 as the carrier for in-situ growth and gap regulation of gold nanoparticles. …
High-efficiency SERS platform based on 3D porous PPDA@Au …
2023年8月28日 · In this work, a 3D composite nanoparticle of porous PDA (polydopamine) microspheres and Au NPs (PPDA@Au NPs) was proposed as a SERS substrate to detect …
《原位构建Fe3O4@PDA@Au作为SERS探针用于急性中毒物及污染 …
2025年1月7日 · 本文提出了一种原位构建Fe3O4@PDA@AuSERS探针的方法,并将其应用于急性中毒物及污染物的检测。 实验结果表明,该探针具有较高的灵敏度和检测限,能够快速、准 …
基于PDA修饰改性SERS基底的制备与研究-学位-万方数据知识服务 …
主要的研究内容与结果如下: 1.利用聚多巴胺(PDA)作为二级反应平台和原位还原剂,以银纳米颗粒(AgNPs)为基础制备Si/PDA/AgNPs基底。 该基底表面均匀,有非常良好的信号重现性, …
Recent advances of Au@Ag core–shell SERS-based biosensors
Polymerized dopamine (PDA) was coated on Au@Ag NPs for stabilizing SERS signals and protecting these noble metals from chemical oxidation. Then, these Au@Ag@PDA …
SERS characterization of dopamine and in situ dopamine …
We found that in situ PDA formation started after 50 min of laser irradiation of DA at pH 7, while DA was quickly oxidized at pH 9 and 12. Here, we present a detailed SERS band analysis of …
Controllable synthesis of AgNWs@PDA@AgNPs core–shell …
2018年7月31日 · In this work, a series of AgNWs@PDA@AgNPs core–shell nanocobs based on a mussel-inspired polydopamine (PDA) were controllably synthesized and achieve highly …
Increasing SERS performance of silver nanoparticles with …
In this study silver nanospheres (AgNPs) were coated with a thin layer of PDA to exploit the affinity of its surface toward Methylene Blue (MB) and subsequently improve the Surface …
Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS …
2021年5月27日 · We demonstrate the development of an active multicomponent Ag/PDA/ZnO@GMF surface-enhanced Raman scattering (SERS) substrate via introducing bio …
Polydopamine-Mediated, Centrifugal Force-Driven Gold …
2025年1月14日 · This sensor could quantitatively detect putrescine and cadaverine in meat. It has been successfully applied to the in situ detection of putrescine and cadaverine in real meat …
Detection of microRNA using a polydopamine mediated bimetallic SERS …
2019年1月9日 · A novel SERS strategy based on the Au@PDA@Ag bimetallic SERS nanosubstrate and the re-circulated enzymatic amplified system (REAS) is described for the …
One-step Solution Processing of Ag, Au and Pd@MXene Hybrids for SERS
2016年8月25日 · We propose a possible mechanism of the plasmonic hybridization of nanoparticles with MXene. The as-prepared noble metal nanoparticles on MXene show a …
基于手性分子印迹的 SERS 绝对对映体鉴别检测策略,Nature …
在这里,我们提出了一种“检查员”识别机制 (irm),该机制在涂有表面增强拉曼散射 (sers) 标签层的手性印迹聚多巴胺 (pda) 层上实现。irm 的工作原理是在检测分子对渗透性进行手性识别和审 …
Construction of flexible PDMS@PDA@AgNPs SERS sensor for …
In this work, a variety of PDMS@PDA@AgNPs flexible SERS platforms were fabricated by in situ growth of silver nanoparticles (AgNPs) on the surface of polydimethylsiloxane (PDMS) …
Pennsylvania State Employees' Retirement System - pa
2025年1月14日 · SERS Online Member Services. With a member services account, you can view your SERS benefit information and if you are an active SERS member, you can estimate your …