1
|
Li R, Li L, Zhang Y, Lin X, Guo H, Lin C, Feng J. Construction of a Carcinoembryonic Antigen Surface-Enhanced Raman Spectroscopy (SERS) Aptamer Sensor Based on the Silver Nanorod Array Chip. APPLIED SPECTROSCOPY 2023; 77:170-177. [PMID: 36138574 DOI: 10.1177/00037028221131577] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Carcinoembryonic antigen (CEA) is a cancer-related tumor marker, which is commonly used for preventive screening, auxiliary diagnosis, and recurrence monitoring. Therefore, it is of great significance to develop a new CEA detection method. In this paper, we developed an SERS aptasensor for CEA based on silver nanorod array chip, thiol aptamer, and 4-mercaptophenylboronic acid (4-MPBA). The silver nanorod array chip modified by CEA thiol aptamer (aptamer-SH) was used as SERS capture substrates. Ag@4-MPBA was used as a surface-enhanced Raman spectroscopy (SERS) tag. This proposed SERS aptasensor could detect CEA down to 0.447 pg·mL-1 with a wide linear range from 1 pg·mL-1 to 100 ng·mL-1 (R2 = 0.9907). The recovery of the standard addition test for CEA in serum was between 97.25% and 102.67%, and the RSD ≤ 2.52% (n = 3). The sensor has the advantages of good specificity, high sensitivity, and a wide linear range. It provides a new method for the detection of CEA in serum.
Collapse
Affiliation(s)
- Rui Li
- College of Biological and Chemical Engineering, 66514Guangxi University of Science and Technology, Liuzhou, China
| | - Lijun Li
- College of Biological and Chemical Engineering, 66514Guangxi University of Science and Technology, Liuzhou, China
| | - Yan Zhang
- College of Biological and Chemical Engineering, 66514Guangxi University of Science and Technology, Liuzhou, China
| | - Xin Lin
- College of Biological and Chemical Engineering, 66514Guangxi University of Science and Technology, Liuzhou, China
| | - Heyuanxi Guo
- College of Biological and Chemical Engineering, 66514Guangxi University of Science and Technology, Liuzhou, China
| | - Chubing Lin
- College of Biological and Chemical Engineering, 66514Guangxi University of Science and Technology, Liuzhou, China
| | - Jun Feng
- School of Medicine, 66514Guangxi University of Science and Technology, Liuzhou, China
| |
Collapse
|
2
|
Li Q, Yang S, Lu X, Wang T, Zhang X, Fu Y, Qi W. Controllable Fabrication of PdO-PdAu Ternary Hollow Shells: Synergistic Acceleration of H 2 -Sensing Speed via Morphology Regulation and Electronic Structure Modulation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106874. [PMID: 35218118 DOI: 10.1002/smll.202106874] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Designing ultrafast H2 sensors is of particular importance for practical applications of hydrogen energy but still quite challenging. Herein, PdO decorated PdAu ternary hollow shells (PdO-PdAu HSs) exhibiting an ultrafast response of ≈0.9 s to 1% H2 in air at room temperature are presented. PdO-PdAu HSs are fabricated by calcinating PdAu bimetallic HSs in air to form PdO-Au binary HSs, which are then partially reduced by NaBH4 solution, forming PdO-PdAu HSs. This ternary hybrid material takes advantage of multiple aspects to synergistically accelerate the sensing speed. The HS morphology promises high gas accessibility and high surface area for H2 adsorption, and decoration of Au and PdO alters the electronic state of Pd and reduces the energy barrier for hydrogen diffusing from the surface site of Pd into the subsurface site. The content of Au and PdO in the ternary HSs can be simply tuned, which offers the possibility to optimize their promotion effects to reach the best performance. The proposed fabrication strategy sheds light on the rational design of ultrafast Pd-based H2 sensors by controlling the sensor structure and engineering the electronic state of active species.
Collapse
Affiliation(s)
- Qian Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Shuang Yang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Xingyu Lu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, P. R. China
| | - Tieqiang Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Xuemin Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Yu Fu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, 110819, P. R. China
| | - Wei Qi
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, P. R. China
| |
Collapse
|
3
|
Gao Z, Wang T, Li X, Li Q, Zhang X, Cao T, Li Y, Zhang L, Guo L, Fu Y. Pd-Decorated PdO Hollow Shells: A H 2-Sensing System in Which Catalyst Nanoparticle and Semiconductor Support are Interconvertible. ACS APPLIED MATERIALS & INTERFACES 2020; 12:42971-42981. [PMID: 32865972 DOI: 10.1021/acsami.0c13137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Developing a simple strategy to fabricate high-performance hydrogen sensors with long-term stability remains quite challenging. Here, we report the H2-sensing performance of Pd-decorated PdO hollow shells (Pd/PdO HSs). In this novel system, the catalyst nanoparticles (Pd NPs) and semiconductor support (PdO) are interconvertible, which is different from traditional hydrogen-sensing systems such as Pd/TiO2 and Pd/ZnO. This Pd/PdO system exhibits multiple unique properties. First, well-distributed Pd NPs with controllable density can be decorated on PdO support through a one-step NaBH4 treatment during which PdO is partially reduced into Pd. Second, the decorated Pd NPs are physically inlaid in the PdO support, which not only prevents the agglomeration or detachment of Pd NPs but also enhances the electron transfer between Pd NPs and PdO. Third, Pd/PdO HSs can be reoxidized into PdO HSs once their sensing performance degrades, which repeatedly manipulates Pd/PdO HSs under the initial reduction process, leading to the reactivation of the sensing performance. With all these advantages, Pd/PdO HSs demonstrate a detection limit lower than 1 ppm, a response/recovery time to 1% H2 of 5 s/32 s at room temperature, and a repeatable reactivation ability. The strategy presented here is convenient and time saving and has no need to prefunctionalize the PdO surface for the decoration of catalyst NPs. Moreover, the unique reactivation ability of Pd/PdO system opens a new strategy toward extending the lifetime of H2 sensors.
Collapse
Affiliation(s)
- Zhimin Gao
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| | - Tieqiang Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| | - Xuefei Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| | - Qian Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| | - Xuemin Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| | - Tianlong Cao
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| | - Yunong Li
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| | - Liying Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| | - Lei Guo
- Texas A&M Institute of Biosciences & Technology, Houston, Texas 77030, United States
| | - Yu Fu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110189, P. R. China
| |
Collapse
|
4
|
Khairullina E, Mosina K, Choueiri RM, Paradis AP, Petruk AA, Sciaini G, Krivoshapkina E, Lee A, Ahmed A, Klinkova A. An aligned octahedral core in a nanocage: synthesis, plasmonic, and catalytic properties. NANOSCALE 2019; 11:3138-3144. [PMID: 30715071 DOI: 10.1039/c8nr09731c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Plasmonic metal nanostructures with complex morphologies provide an important route to tunable optical responses and local electric field enhancement at the nanoscale for a variety of applications including sensing, imaging, and catalysis. Here we report a high-concentration synthesis of gold core-cage nanoparticles with a tethered and structurally aligned octahedral core and examine their plasmonic and catalytic properties. The obtained nanostructures exhibit a double band extinction in the visible-near infrared range and a large area electric field enhancement due to the unique structural features, as demonstrated using finite difference time domain (FDTD) simulations and confirmed experimentally using surface enhanced Raman scattering (SERS) tests. In addition, the obtained structures had a photoelectrochemical response useful for catalyzing the CO2 electroreduction reaction. Our work demonstrates the next generation of complex plasmonic nanostructures attainable via bottom-up synthesis and offers a variety of potential applications ranging from sensing to catalysis.
Collapse
Affiliation(s)
- Evgeniia Khairullina
- Department of Chemistry and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Šubr M, Procházka M. Polarization- and Angular-Resolved Optical Response of Molecules on Anisotropic Plasmonic Nanostructures. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E418. [PMID: 29890758 PMCID: PMC6027211 DOI: 10.3390/nano8060418] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 05/28/2018] [Accepted: 06/07/2018] [Indexed: 11/17/2022]
Abstract
A sometimes overlooked degree of freedom in the design of many spectroscopic (mainly Raman) experiments involve the choice of experimental geometry and polarization arrangement used. Although these aspects usually play a rather minor role, their neglect may result in a misinterpretation of the experimental results. It is well known that polarization- and/or angular- resolved spectroscopic experiments allow one to classify the symmetry of the vibrations involved or the molecular orientation with respect to a smooth surface. However, very low detection limits in surface-enhancing spectroscopic techniques are often accompanied by a complete or partial loss of this detailed information. In this review, we will try to elucidate the extent to which this approach can be generalized for molecules adsorbed on plasmonic nanostructures. We will provide a detailed summary of the state-of-the-art experimental findings for a range of plasmonic platforms used in the last ~ 15 years. Possible implications on the design of plasmon-based molecular sensors for maximum signal enhancement will also be discussed.
Collapse
Affiliation(s)
- Martin Šubr
- Faculty of Mathematics and Physics, Institute of Physics, Charles University, 121 16 Prague 2, Czech Republic.
| | - Marek Procházka
- Faculty of Mathematics and Physics, Institute of Physics, Charles University, 121 16 Prague 2, Czech Republic.
| |
Collapse
|