1
|
Zhang R, Yang J, Cao Y, Zhang Q, Xie C, Xiong W, Luo X, He Y. Efficient 2D MOFs nanozyme combining with magnetic SERS substrate for ultrasensitive detection of Hg 2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 312:124062. [PMID: 38401506 DOI: 10.1016/j.saa.2024.124062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 01/05/2024] [Accepted: 02/18/2024] [Indexed: 02/26/2024]
Abstract
Biomimetic inorganic nanoenzyme is a kind of nanomaterial with long-term stability, easy preparation and low cost, which could instead of natural biological enzyme. Metal-organic framework (MOFs) as effectively nanoenzyme was attracted more attention for the adjustability and large specific surface area. This design is based on the catalase-like catalytic activity of 2D metal-organic frameworks (MOFs) and the high sensitivity of surface enhanced Raman spectroscopy (SERS) biosensors to construct a novel SERS biosensor capable of efficiently detecting mercury (Hg2+). In this study, 2D MOFs nanozyme was instead of 3D structure with more effecient catalytic site, which can catalyze o-Phenylenediamine (OPD) to OPDox with the assistance of H2O2. Besides, a magnetic composite nanomaterial Fe3O4@Ag@OPD was prepared as a signal carrier. In the presence of Hg2+, T-Hg2+-T base pairs were used to connect the two materials to realize Raman signal change. Based on this principle, the SERS sensor can realize the sensitive detection of Hg2+, the detection range is 1.0 × 10-12 ∼ 1.0 × 10-2 mol‧L-1, and the detection limit is 1.36 × 10-13 mol‧L-1. This method greatly improves the reliability of SERS sensor for detecting the target, and provides a new idea for detecting metal ions in the environment.
Collapse
Affiliation(s)
- Runzi Zhang
- Department of Chemistry, School of Science, Xihua University, Chengdu, China
| | - Jia Yang
- Department of Chemistry, School of Science, Xihua University, Chengdu, China
| | - Yongguo Cao
- Department of Chemistry, School of Science, Xihua University, Chengdu, China
| | - Qianyan Zhang
- Department of Chemistry, School of Science, Xihua University, Chengdu, China
| | - Chenfeng Xie
- Department of Chemistry, School of Science, Xihua University, Chengdu, China
| | - Wanyi Xiong
- Department of Chemistry, School of Science, Xihua University, Chengdu, China
| | - Xiaojun Luo
- Department of Chemistry, School of Science, Xihua University, Chengdu, China.
| | - Yi He
- Department of Chemistry, School of Science, Xihua University, Chengdu, China.
| |
Collapse
|
2
|
Dong Y, Yuan X, Zhuang K, Li Y, Luo X. Simultaneous and sensitive detection of SARS-CoV-2 proteins spike and nucleocapsid based on long-range SERS biosensor. Anal Chim Acta 2024; 1287:342070. [PMID: 38182376 DOI: 10.1016/j.aca.2023.342070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/23/2023] [Accepted: 11/25/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Early diagnosis of SARS-CoV-2 infection is still critical to control COVID-19 outbreak. Traditional polymerase chain reaction, enzyme-linked immunosorbent assay or lateral flow immunoassay performed poorly on detection times, sample preparation process and accuracy. Surface-enhanced Raman scattering (SERS)-based detection has emerged as a powerful analytical technique, which overcomes the above limitations. However, due to the near-field effect of traditional substrate, it is difficult to monitor the binding event of aptamers with proteins. It is obvious that a novel SERS substrate thatsupportedextended and stronger electromagnetic fields was required to hold long-range effects and allow for binding event testing. RESULTS Driven by this challenge, we reported a long-range SERS-active substrate, which was built by inserting bowtie nanoaperture arrays in a refractive-index-symmetric environment and Au mirror surfaces, for SARS-CoV-2 protein binding event detection. Then, a double-π structure aptasensor was simply designed through the hybridization of spike (S) and nucleocapsid (N) proteins aptamers, and a corresponding complementary strand. This kind of double-π structure would dissociate when targets proteins S and N existed and led to the SERS responses decreased, which established the detection basis of our system. What's more, due to two Raman labels were involved, both proteins S and N can be sensed simultaneously. Our proposed method showed improved sensitivity with a low limit of detection for multiplex detection (1.6 × 10-16 g/mL for protein S and 1.0 × 10-16 g/mL for protein N) over a wide concentration range. SIGNIFICANCE This represents the first long-range SERS apatasensor platform for detection of S and N proteins simultaneously. Our method showed high sensitivity, selectivity, reproducibility, stability and remarkable recoveries in human in saliva and serum samples, which is particularly important for the early diagnostics of COVID as well as for future unknown coronavirus.
Collapse
Affiliation(s)
- Ying Dong
- School of Science, Xihua University, Chengdu, 610039, PR China
| | - Xue Yuan
- School of Science, Xihua University, Chengdu, 610039, PR China
| | - Kaiyi Zhuang
- School of Science, Xihua University, Chengdu, 610039, PR China
| | - Yuanyuan Li
- Shanghai Anti-Doping Laboratory, Shanghai University of Sport, Shanghai, 200438, PR China.
| | - Xiaojun Luo
- School of Science, Xihua University, Chengdu, 610039, PR China; Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan Province, Chengdu, 610039, PR China.
| |
Collapse
|
3
|
Shokova MA, Bochenkov VE. Impact of Optical Cavity on Refractive Index Sensitivity of Gold Nanohole Arrays. BIOSENSORS 2023; 13:1038. [PMID: 38131798 PMCID: PMC10741978 DOI: 10.3390/bios13121038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023]
Abstract
Refractive index sensing based on surface plasmon resonance (SPR) is a highly efficient label-free technique for biomolecular detection. The performance of this method is defined by the dielectric properties of a sensing layer and its structure. Nanohole arrays in thin metal films provide good refractive index sensitivity but often suffer from a large resonance linewidth, which limits their broad practical application in biosensorics. Coupling the broad plasmon modes to sharp resonances can reduce the peak widths, but at the same time it can also degrade the sensitivity. Here, we use Finite-Difference Time Domain simulations to study the factors affecting the sensing performance of gold-silica-gold optical cavities with nanohole arrays in the dielectric and top metal layers. We demonstrate that by tuning resonator size and inter-hole spacing, the performance of the biosensor can be optimized and the figure of merit of the order of 5-7 is reached.
Collapse
|
4
|
Mago A, Yang YS, Shim JH, John AA. Wearable Device for Cumulative Chlorobenzene Detection and Accessible Mitigation Strategies. SENSORS (BASEL, SWITZERLAND) 2023; 23:7904. [PMID: 37765961 PMCID: PMC10536231 DOI: 10.3390/s23187904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
Chronic exposure to low concentrations of volatile organic compounds (VOCs), such as chlorobenzene, is not being monitored in industrializing countries, although VOC exposure is associated with carcinogenic, organ-toxic, and endocrine-disrupting effects. Current VOC-sensing technologies are inaccessible due to high cost, size, and maintenance or are ineffective due to poor sensitivity or reliability. In particular, marginalized individuals face barriers to traditional prescription VOC treatments due to cost, lack of transportation, and limited access to physicians; thus, alternative treatments are needed. Here, we created a novel cumulative wearable color-changing VOC sensor with a paper-based polydiacetylene sensor array for chlorobenzene. With a single smartphone picture, the sensor displays 14 days of logged chlorobenzene exposure data, interpreted by machine-learning (ML) techniques, including principal component analysis. Further, we explored the efficacy of affordable and accessible treatment options to mitigate a VOC's toxic effects. Vitamin D and sulforaphane are naturally found in cruciferous vegetables, like broccoli, and can be used to treat chlorobenzene-mediated bone degradation. Our platform combines these components into a smartphone app that photographs the sensor's colorimetric data, analyzes the data via ML techniques, and offers accessible treatments based on exposure data.
Collapse
Affiliation(s)
- Aryan Mago
- Department of Medicine, Division of Rheumatology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Yeon-Suk Yang
- Department of Medicine, Division of Rheumatology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Jae-Hyuck Shim
- Department of Medicine, Division of Rheumatology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Aijaz Ahmad John
- Department of Medicine, Division of Rheumatology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| |
Collapse
|
5
|
Gao S, Wei K, Yang H, Tang Y, Yi Z, Tang C, Tang B, Yi Y, Wu P. Design of Surface Plasmon Resonance-Based D-Type Double Open-Loop Channels PCF for Temperature Sensing. SENSORS (BASEL, SWITZERLAND) 2023; 23:7569. [PMID: 37688037 PMCID: PMC10490675 DOI: 10.3390/s23177569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 07/29/2023] [Accepted: 08/14/2023] [Indexed: 09/10/2023]
Abstract
Here, we document a D-type double open-loop channel floor plasmon resonance (SPR) photonic crystal fiber (PCF) for temperature sensing. The grooves are designed on the polished surfaces of the pinnacle and backside of the PCF and covered with a gold (Au) film, and stomata are distributed around the PCF core in a progressive, periodic arrangement. Two air holes between the Au membrane and the PCF core are designed to shape a leakage window, which no longer solely averts the outward diffusion of Y-polarized (Y-POL) core mode energy, but also sets off its coupling with the Au movie from the leakage window. This SPR-PCF sensor uses the temperature-sensitive property of Polydimethylsiloxane (PDMS) to reap the motive of temperature sensing. Our lookup effects point out that these SPR-PCF sensors have a temperature sensitivity of up to 3757 pm/°C when the temperature varies from 5 °C to 45 °C. In addition, the maximum refractive index sensitivity (RIS) of the SPR-PCF sensor is as excessive as 4847 nm/RIU. These proposed SPR-PCF temperature sensors have an easy nanostructure and proper sensing performance, which now not solely improve the overall sensing performance of small-diameter fiber optic temperature sensors, but also have vast application prospects in geo-logical exploration, biological monitoring, and meteorological prediction due to their remarkable RIS and exclusive nanostructure.
Collapse
Affiliation(s)
- Shuangyan Gao
- Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; (S.G.); (Y.T.)
| | - Kaihua Wei
- School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China;
| | - Hua Yang
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China;
| | - Yongjian Tang
- Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; (S.G.); (Y.T.)
| | - Zao Yi
- Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; (S.G.); (Y.T.)
- School of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Chaojun Tang
- College of Science, Zhejiang University of Technology, Hangzhou 310023, China;
| | - Bin Tang
- School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213164, China;
| | - Yougen Yi
- College of Physics and Electronics, Central South University, Changsha 410083, China;
| | - Pinghui Wu
- Key Laboratory of Information Functional Material for Fujian Higher Education, Quanzhou Normal University, Quanzhou 362000, China
| |
Collapse
|
6
|
Liu F, Jia H, Chen Y, Luo X, Huang M, Wang M, Zhang X. Dual-Function Meta-Grating Based on Tunable Fano Resonance for Reflective Filter and Sensor Applications. SENSORS (BASEL, SWITZERLAND) 2023; 23:6462. [PMID: 37514756 PMCID: PMC10383033 DOI: 10.3390/s23146462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/06/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023]
Abstract
Localized surface plasmon resonance (LSPR)-based sensors exhibit enormous potential in the areas of medical diagnosis, food safety regulation and environmental monitoring. However, the broadband spectral lineshape of LSPR hampers the observation of wavelength shifts in sensing processes, thus preventing its widespread applications in sensors. Here, we describe an improved plasmonic sensor based on Fano resonances between LSPR and the Rayleigh anomaly (RA) in a metal-insulator-metal (MIM) meta-grating, which is composed of silver nanoshell array, an isolation grating mask and a continuous gold film. The MIM configuration offers more freedom to control the optical properties of LSPR, RA and the Fano resonance between them. Strong couplings between LSPR and RA formed a series of narrowband reflection peaks (with a linewidth of ~20 nm in full width at half maximum (FWHM) and a reflectivity nearing 100%) within an LSPR-based broadband extinction window in the experiment, making the meta-grating promising for applications of high-efficiency reflective filters. A Fano resonance that is well optimized between LSPR and RA by carefully adjusting the angles of incident light can switch such a nano-device to an improved biological/chemical sensor with a figure of merit (FOM) larger than 57 and capability of detecting the local refractive index changes caused by the bonding of target molecules on the surface of the nano-device. The figure of merit of the hybrid sensor in the detection of target molecules is 6 and 15 times higher than that of the simple RA- and LSPR-based sensors, respectively.
Collapse
Affiliation(s)
- Feifei Liu
- College Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
| | - Haoyu Jia
- College Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
| | - Yuxue Chen
- College Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
| | - Xiaoai Luo
- College Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
| | - Meidong Huang
- College Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
| | - Meng Wang
- School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China
| | - Xinping Zhang
- Institute of Information Photonics Technology, College of Applied Sciences, Beijng University of Technology, Beijing 100124, China
| |
Collapse
|