1
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Duan L, Liu X, Meng X, Qu L. Highly sensitive SERS detection of pesticide residues based on multi-hotspot buckypaper modified with gold nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123665. [PMID: 38029600 DOI: 10.1016/j.saa.2023.123665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/30/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023]
Abstract
To effectively extract target analytes from complex sample surfaces is of great significance for the practical application of surface-enhanced Raman scattering (SERS) spectroscopy. A plasmonic substrate with multiple "hotspots" for highly sensitive detection of pesticide residues were prepared successfully by assembling gold nanoparticles on buckypaper (AuNPs-BP). The substrate exhibited high SERS enhancement and excellent detection sensitivity, with a detection limit (LOD) of 2.03 × 10-11 M and 6.88 × 10-12 M for the probe molecule R6G and MB, respectively. Combined with 3D finite-difference time-domain (3D-FDTD) simulation, the excellent SERS performance of the substrate was attributed to the enhancement of the electromagnetic field around the "hotspots". Additionally, the substrates exhibited excellent flexibility, allowing easy contact with irregular surfaces and facilitating the collection of target molecules on the sample surface. Using a portable Raman spectrometer, the substrate achieved in situ analysis of chlorpyrifos residues on peach, with a LOD as low as 6.8 × 10-11 M. The method showed high accuracy, with a recovery value ranging from 94.2 % to 115.5 %. The results indicate that the substrate has great potential for rapid and highly sensitive detection of pollutants, especially on non-planar surfaces.
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Affiliation(s)
- Lingfeng Duan
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Xinyu Liu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Xin Meng
- School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
| | - Lulu Qu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, China.
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2
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Ge Y, Yang Y, Zhu Y, Yuan M, Sun L, Jiang D, Liu X, Zhang Q, Zhang J, Wang Y. 2D TiS 2-Nanosheet-Coated Concave Gold Arrays with Triple-Coupled Resonances as Sensitive SERS Substrates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2302410. [PMID: 37635113 DOI: 10.1002/smll.202302410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/18/2023] [Indexed: 08/29/2023]
Abstract
Herein, a hybrid substrate for surface-enhanced Raman scattering (SERS) is fabricated, which couples localized surface plasmon resonance (LSPR), charge transfer (CT) resonance, and molecular resonance. Exfoliated 2D TiS2 nanosheets with semimetallic properties accelerate the CT with the tested analytes, inducing a remarkable chemical mechanism enhancement. In addition, the LSPR effect is coupled with a concave gold array located underneath the thin TiS2 nanosheet, providing a strong electromagnetic enhancement. The concave gold array is prepared by etching silicone nanospheres assembled on larger polystyrene nanospheres, followed by depositing a gold layer. The LSPR intensity near the gold layer can be adjusted by changing the layer thickness to couple the molecular and CT resonances, in order to maximize the SERS enhancement. The best SERS performance is recorded on TiS2-nanosheet-coated plasmonic substrates, with a detectable methylene blue concentration down to 10-13 m and an enhancement factor of 2.1 × 109 and this concentration is several orders of magnitude lower than that of the TiS2 nanosheet (10-11 m) and plasmonic substrates (10-9 m). The present hybrid substrate with triple-coupled resonance further shows significant advantages in the label-free monitoring of curcumin (a widely applied drug for treating multiple cancers and inflammations) in serum and urine.
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Affiliation(s)
- Yuancai Ge
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
| | - Ying Yang
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
| | - Yajie Zhu
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
| | - Meiling Yuan
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
| | - Liangbin Sun
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
| | - Danfeng Jiang
- Wenzhou Institute, University of Chinese Academy of Sciences, Jinlian Road 1, Wenzhou, 325001, China
| | - Xiaohu Liu
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
| | - Qingwen Zhang
- Wenzhou Institute, University of Chinese Academy of Sciences, Jinlian Road 1, Wenzhou, 325001, China
| | - Jinyi Zhang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Ophthalmology & Optometry, Wenzhou Medical University, Wenzhou, China
| | - Yi Wang
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Jinlian Road 1, Wenzhou, 325001, China
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3
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Liu X, Su X, Chen M, Xie Y, Li M. Self-calibrating surface-enhanced Raman scattering-lateral flow immunoassay for determination of amyloid-β biomarker of Alzheimer's disease. Biosens Bioelectron 2024; 245:115840. [PMID: 37988777 DOI: 10.1016/j.bios.2023.115840] [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: 07/11/2023] [Revised: 10/24/2023] [Accepted: 11/12/2023] [Indexed: 11/23/2023]
Abstract
Rapid early diagnosis of Alzheimer's disease (AD) is critical for its effective and prompt treatment since the clinically available treatments can only relieve the symptoms or slow the disease progression. However, it is still a grand challenge to accurately diagnose AD at its early stage because of the indiscernible early symptoms and the lack of sensitive detection tools. Here, we develop a self-calibrating surface-enhanced Raman scattering (SERS)-lateral flow immunoassay (LFIA) biosensor for quantitative analysis of amyloid-β1-42 (Aβ1-42) biomarker in biofluids, enabling accurate AD diagnosis. The designed SERS-LFIA biosensor makes full use of the unique aspects of the LFIA format and the SERS technique to quantify the Aβ1-42 level in complex biofluids with high sensitivity, excellent anti-interference capability, low-cost, and operation simplicity. The key aspect of the design of this biosensor is that internal standard (IS)-SERS nanoparticles are embedded in the test line of the test strip as a self-calibration unit for correction of fluctuations of SERS signals caused by various external factors such as test parameters and sample heterogeneity. We demonstrate significant improvement of the detection performance of the SERS-LFIA biosensor for ratiometric quantification of Aβ1-42 owing to the built-in IS in the test line. We expect that the present IS-based biosensing strategy provides a promising tool for accurate AD diagnosis and longitudinal monitoring of therapeutic response with great promises for clinical translation.
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Affiliation(s)
- Xinyu Liu
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Xiaoming Su
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Mingyang Chen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Yangcenzi Xie
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, China.
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4
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Su X, Xie Y, Liu X, Chen M, Zheng C, Zhong H, Li M. Absolute Quantification of Serum Exosomes in Patients with an SERS-Lateral Flow Strip Biosensor for Noninvasive Clinical Cancer Diagnosis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:37130-37142. [PMID: 37525365 DOI: 10.1021/acsami.3c05039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Exosomes (exos) widely existing in body fluids show great potential for noninvasive cancer diagnosis. Quantitative analysis of exos is traditionally performed by targeting specific exosomal surface proteins, but it is often imprecise due to the common expression of exosomal proteins and subtle expression differences between different cancer subtypes. Herein, we report quantitative surface-enhanced Raman spectroscopy (SERS) of serum exos through a combination of a paper-based lateral flow strip (LFS) biosensor with multivariate spectral unmixing analysis rather than simply quantifying exosomal proteins. Our SERS-LFS biosensor enables absolute quantification of two different serum exos with a limit of detection down to ∼106 particles/mL for both exos. We further exemplify the application of this strategy in quantitative dual-plex detection of serum exos from breast cancer patients. We find that human epidermal growth factor receptor 2+ (HER2+) and luminal A breast cancer patients undergoing no surgery are enriched in serum exos derived from SKBR-3 cells and MCF-7 cells (denoted as SKBR and MCF exos), respectively. The surgical treatment of these breast cancer patients accompanies an obvious decrease of either SKBR or MCF exos in the serum. These results suggest the great potential of the combination of the SERS-LFS biosensor and multivariate spectral unmixing for breast cancer subtyping and therapeutic surveillance with the powerful quantitative capability of exos in clinical samples.
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Affiliation(s)
- Xiaoming Su
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, China
| | - Yangcenzi Xie
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Xinyu Liu
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Mingyang Chen
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Chao Zheng
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, Shandong, China
| | - Hong Zhong
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
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5
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Zhang H, Zhu T, Li M. Quantitative Analysis of the Shape Effect of Thermoplasmonics in Gold Nanostructures. J Phys Chem Lett 2023; 14:3853-3860. [PMID: 37067229 DOI: 10.1021/acs.jpclett.3c00632] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The shape effect of thermoplasmonic properties of Au nanostructures remains largely unexplored. Herein, we report a systematic investigation on the photothermal effects of Au nanoparticles (NPs) of different shapes: nanosphere, nanocube, nanorod, nanostar, and nanobipyramid. The Joule (Jo) number (absorption cross section normalized by the particulate volume) is utilized for quantitatively assessing the photothermal properties of these different shaped Au NPs. It is shown that the Jo number of Au NPs greatly varies with the geometric shape and localized surface plasmon resonance (LSPR) wavelength. Specifically, the Jo number decreases with the red-shifting of the LSPR wavelength in these Au NPs, and the Au NPs of sharp structural features such as Au nanorod, nanostar and nanobipyramid have a much larger Jo number, indicative of their exceptional light-to-heat conversion ability. We further demonstrate the close correlation of the Jo number of Au NPs of different shapes with their optical absorption power density.
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Affiliation(s)
- Huiming Zhang
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Ting Zhu
- School of Physics and Electronic Information, Yunnan Normal University, Kunming, Yunnan 650500, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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6
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Su X, Liu X, Xie Y, Chen M, Zheng C, Zhong H, Li M. Integrated SERS-Vertical Flow Biosensor Enabling Multiplexed Quantitative Profiling of Serological Exosomal Proteins in Patients for Accurate Breast Cancer Subtyping. ACS NANO 2023; 17:4077-4088. [PMID: 36758150 DOI: 10.1021/acsnano.3c00449] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Protein profiles of exosomes (EXOs) in clinical samples of cancer patients have become a promising diagnostic and therapeutic biomarker. However, simultaneous quantitative analysis of multiple exosomal proteins of interest remains challenging. To address the unmet need, we develop a paper-based surface-enhanced Raman spectroscopy (SERS)-vertical flow biosensor, named iREX (integrated Raman spectroscopic EXO) biosensor, for multiplexed quantitative profiling of exosomal proteins in clinical serum samples of patients. Utilizing this iREX biosensor, we are able to quantitatively profile MUC1, HER2 and CEA in EXO samples derived from various breast cancer cell subtypes. The results show discriminative expression profiles of the three exosomal proteins in these cell subtypes, which allows for accurate diagnosis and molecular subtyping of breast cancer. We further validate the clinical utility of the iREX biosensor for simultaneous quantitative analysis of MUC1, HER2 and CEA in patient's blood serums, thereby aiding in noninvasive breast cancer subtyping and longitudinal treatment monitoring. Our iREX biosensor integrating the SERS detection in a vertical flow diagnostic device offers great advantages of high sensitivity, molecular specificity, powerful multiplexing capability, and high diagnostic accuracy. We believe that the iREX biosensor could be a promising clinical tool for comprehensive analysis of exosomal proteins in clinical samples for personalized diagnosis and precise management of breast cancer.
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Affiliation(s)
- Xiaoming Su
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Xinyu Liu
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Yangcenzi Xie
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Mingyang Chen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Chao Zheng
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, China
| | - Hong Zhong
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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7
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Su X, Liu X, Xie Y, Chen M, Zhong H, Li M. Quantitative Label-Free SERS Detection of Trace Fentanyl in Biofluids with a Freestanding Hydrophobic Plasmonic Paper Biosensor. Anal Chem 2023; 95:3821-3829. [PMID: 36752236 DOI: 10.1021/acs.analchem.2c05211] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The prevalence of fentanyl abuse raises global public health concerns with an unprecedented surge in overdose deaths. Rapid identification and quantification of fentanyl in biofluids is of paramount importance to combat fentanyl abuse for law enforcement agencies and promptly treat patients for medical professionals. Herein, a freestanding surface-enhanced Raman spectroscopy (SERS) biosensor with excellent condensing enrichment capability, termed FrEnSERS biosensor, is reported for quantitative label-free detection of trace fentanyl in biofluids. This biosensor comprises a reduced graphene oxide membrane decorated with high-density hydrophobic Au nanostars. A combination of the high SERS enhancement and the focusing effect for analyte enrichment of the hydrophobic surface accounts for the remarkable SERS performance of the FrEnSERS biosensor. We demonstrate that the FrEnSERS biosensor achieves the sensitive and quantitative detection of fentanyl in both serum and urine over a wide dynamic range spanning more than 4 orders of magnitude, with a limit of detection of 0.47 ng/mL for serum samples and 0.73 ng/mL for urine samples. Our biosensor is sensitive, cost-effective, and reliable for rapid quantitative analysis of fentanyl in biofluids with great promise for forensic analysis and clinical diagnosis.
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Affiliation(s)
- Xiaoming Su
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China.,College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Xinyu Liu
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Yangcenzi Xie
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Mingyang Chen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Hong Zhong
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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8
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Xie Y, Su X, Wen Y, Zheng C, Li M. Artificial Intelligent Label-Free SERS Profiling of Serum Exosomes for Breast Cancer Diagnosis and Postoperative Assessment. NANO LETTERS 2022; 22:7910-7918. [PMID: 36149810 DOI: 10.1021/acs.nanolett.2c02928] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Breast cancer subtypes have important implications of treatment responses and clinical outcomes. Exosomes have been considered as promising biomarkers for liquid biopsies, but the utility of exosomes for accurate diagnosis of distinct breast cancer subtypes is a grand challenge due to the difficulty in uncovering the subtle compositional difference in complex clinical settings. Herein, we report an artificial intelligent surface-enhanced Raman spectroscopy (SERS) strategy for label-free spectroscopic analysis of serum exosomes, allowing for accurate diagnosis of breast cancer and assessment of surgical outcomes. Our deep learning algorithm trained with SERS spectra of cancer cell-derived exosomes is demonstrated with a 100% prediction accuracy for human patients with different breast cancer subtypes who do not undergo surgery using SERS spectra of serum exosomes. Furthermore, when combined with similarity analysis by principal component analysis, our approach is able to evaluate the surgical outcomes of breast cancer of distinct molecular subtypes.
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Affiliation(s)
- Yangcenzi Xie
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Xiaoming Su
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China
| | - Yu Wen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Chao Zheng
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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9
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Xie Y, Wen Y, Su X, Zheng C, Li M. Label-Free Plasmon-Enhanced Spectroscopic HER2 Detection for Dynamic Therapeutic Surveillance of Breast Cancer. Anal Chem 2022; 94:12762-12771. [PMID: 36069700 DOI: 10.1021/acs.analchem.2c02419] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The expression of human epidermal growth factor receptor-2 (HER2) has important implications for pathogenesis, progression, and therapeutic efficacy of breast cancer. The detection of its variation during the treatment is crucial for therapeutic decision-making but remains a grand challenge, especially at the cellular level. Here, we develop a machine learning-driven surface-enhanced Raman spectroscopy (SERS)-integrated strategy for label-free detection of cellular HER2. Specifically, our method allows the extraction of cell-rich spectral signatures utilized for identification and classification of cancer cells with distinct HER2 expression with a high accuracy of 99.6%. By combining label-free SERS detection and machine learning-driven chemometric analysis, we are able to perform longitudinal monitoring of therapeutic efficacy at the cellular level during the treatment of HER2+ breast cancer, which aids in the subsequent decision-making and management. This work provides a promising technique capable of performing dynamic label-free spectroscopic detection for therapeutic surveillance of diseases.
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Affiliation(s)
- Yangcenzi Xie
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Yu Wen
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
| | - Xiaoming Su
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China.,College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, China
| | - Chao Zheng
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, Shandong, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
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10
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Near-infrared II plasmonic porous cubic nanoshells for in vivo noninvasive SERS visualization of sub-millimeter microtumors. Nat Commun 2022; 13:5249. [PMID: 36068273 PMCID: PMC9448796 DOI: 10.1038/s41467-022-32975-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 08/25/2022] [Indexed: 11/08/2022] Open
Abstract
In vivo surface-enhanced Raman scattering (SERS) imaging allows non-invasive visualization of tumors for intraoperative guidance and clinical diagnostics. However, the in vivo utility of SERS is greatly hampered by the strong optical scattering and autofluorescence background of biological tissues and the lack of highly active plasmonic nanostructures. Herein, we report a class of porous nanostructures comprising a cubic AuAg alloy nanoshell and numerous nanopores. Such porous nanostructures exhibit excellent near-infrared II plasmonic properties tunable in a broad spectral range by varying the pore features while maintaining a small dimension. We demonstrate their exceptional near-infrared II SERS performance varying with the porous properties. Additionally, near-infrared II SERS probes created with porous cubic AuAg nanoshells are demonstrated with remarkable capability for in vivo visualization of sub-millimeter microtumors in a living mouse model. Our near-infrared II SERS probes hold great potentials for precise demarcation of tumor margins and identification of microscopic tumors.
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11
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Fabrication of photosensitizer-polyethylene glycol-conjugated gold nanostars for simultaneous photothermal and photodynamic cancer therapy under near-infrared laser irradiation. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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12
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Xu L, Ding Q. Magnetic field induced high-density SERS active assembly of Fe 3O 4@Au nanostars in a glass capillary for food colorant detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:5487-5492. [PMID: 34738609 DOI: 10.1039/d1ay00989c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The Fe3O4@Au nanostars, whose anisotropic shape couples the plasmons focused on the magnetic core with the branches of the gold shell, hold promise for surface enhanced Raman spectroscopy (SERS) applications. Assembly of monodisperse Fe3O4@Au nanostars induced by a magnetic field could lead to highly ordered superstructures, providing distinctive SERS activity. In this study, a simplified fabrication technique was developed to assemble Fe3O4@Au nanostars on the inner walls of a glass capillary into a highly sensitive, reproducible and recyclable SERS active glass capillary under controlled magnetic alignment. The strong dipole-dipole interactions between the neighboring nanoparticles lead to a close-packed pattern as an energetically favorable configuration. The magnetic dipolar interaction between the particles can be further tuned by the controlled anisotropic shape of the gold shell. The interparticle plasmon couplings and lightning rod effects of the Fe3O4@Au nanostars contributed to Raman enhancement. Based on the capillary action, capillaries can act as a microreactor for the sampling tools. We further demonstrate SERS-based colorant detection in the capillary which the target molecule can easily detect by simple adsorption of the colorants by capillary action. The Fe3O4@Au nanostars in the capillary with a long shelf life, high sensitivity and low cost promote the application of SERS technology in widespread fields.
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Affiliation(s)
- Lihua Xu
- Department of Precision Manufacturing Engineering Suzhou Vocational Institute of Industrial Technology, Suzhou 215104, People's Republic of China
| | - Qianqian Ding
- Department of Precision Manufacturing Engineering Suzhou Vocational Institute of Industrial Technology, Suzhou 215104, People's Republic of China
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13
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Tan J, Wen Y, Li M. Emerging biosensing platforms for quantitative detection of exosomes as diagnostic biomarkers. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Rex R, Siddhanta S, Barman I. Role of Aqueous-Phase Calcination in Synthesis of Ultra-Stable Dye-Embedded Fluorescent Nanoparticles for Cellular Probing. APPLIED SPECTROSCOPY 2021; 75:1012-1021. [PMID: 34251874 DOI: 10.1177/00037028211027597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fluorescence imaging is a major driver of discovery in biology, and an invaluable asset in clinical diagnostics. To overcome quenching limitations of conventional fluorescent dyes and further improve intensity, nanoparticle-based constructs have been the subject of intense investigation, and within this realm, dye-doped silica-coated nanoparticles have garnered significant attention. Despite their growing popularity in research, fluorescent silica nanoparticles suffer from a significant flaw. The degradation of these nanoparticles in biological media by hydrolytic dissolution is underreported, leading to serious misinterpretations, and limiting their applicability for live cell and in vivo imaging. Here, the development of an ultra-stable, dye-embedded, silica-coated metal nanoparticle is reported, and its superior performance in long-term live cell imaging is demonstrated. While conventional dye-doped silica nanoparticles begin to degrade within an hour in aqueous media, by leveraging a modified liquid calcination process, this new construct is shown to be stable for at least 24 h. The stability of this metal-enhanced fluorescent probe in biologically relevant temperatures and media, and its demonstrated utility for cell imaging, paves the way for its future adoption in biomedical research.
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Affiliation(s)
- Rachel Rex
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Department of Mechanical Engineering, University of California, Berkeley, CA, USA
| | - Soumik Siddhanta
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Department of Oncology, Radiology and Radiological Science, Johns Hopkins University, Baltimore, MD, USA
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, India
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Department of Oncology, Radiology and Radiological Science, Johns Hopkins University, Baltimore, MD, USA
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15
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Wang H, Li M. Near-Infrared II Thermoplasmonics of Cuprous Selenide Multilayer Nanoshells: The Role of the Plasmonic Core. J Phys Chem Lett 2021; 12:4928-4935. [PMID: 34008982 DOI: 10.1021/acs.jpclett.1c01081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We present a numerical investigation of the plasmonic and photothermal properties of two different types of cuprous selenide (Cu2-xSe) concentric multilayer nanoshells (CMNSs), heteroCMNSs and homoCMNSs, comprising an outer Cu2-xSe nanoshell and an intermediate silica layer but with a different nanoparticle core of either Au or Cu2-xSe. Numerical calculations of optical absorption, near-field enhancement, and local temperature increase are performed with varied dimensions. The plasmon modes from both types of CMNSs are interpreted by combining the plasmon hybridization theory with the surface charge distribution. The two CMNSs exhibit remarkable near-infrared II (NIR-II) plasmonic properties tunable by controlling the interaction between the inner core and the Cu2-xSe nanoshell. The distinct temperature increase distributions between the two CMNSs are identified at their NIR-II resonance wavelengths. The correlation between the partial absorption and the temperature increase of the inner core and Cu2-xSe nanoshell suggests the thermal interplay between the components.
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Affiliation(s)
- Haitao Wang
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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16
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Wen Y, Truong VX, Li M. Real-Time Intraoperative Surface-Enhanced Raman Spectroscopy-Guided Thermosurgical Eradication of Residual Microtumors in Orthotopic Breast Cancer. NANO LETTERS 2021; 21:3066-3074. [PMID: 33820417 DOI: 10.1021/acs.nanolett.1c00204] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Residual microtumors following surgical resection are the major cause for lethal cancer recurrence. However, it remains challenging to completely eliminate these residual microtumors. Here, we report an integrated strategy for image-guided surgical resection of tumors and intraoperative surface-enhanced Raman spectroscopy (SERS) guided thermosurgical elimination of residual microtumors using a "three-in-one" theranostic nanoprobe, termed the Au nanostar-based photoacoustic (PA), SERS, and thermosurgical (starPART) probe. This starPART probe, comprising an Au nanostar core, a Raman molecule layer, and a silica outer layer, draws upon the significant advantages of PA imaging, SERS detection, and photothermal tumor ablation. These prominent features enable preoperative PA imaging for surgical resection of tumors and intraoperative SERS-guided thermosurgery for complete elimination of residual microtumors. In vivo experiments confirm complete eradication of microtumors without local recurrence and with a 100% tumor-free survivability. This work therefore offers a robust platform for real-time intraoperative eradication of residual microtumors with significant improvement of surgical outcomes.
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Affiliation(s)
- Yu Wen
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Vinh X Truong
- Centre for Materials Science, School of Physics and Chemistry, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
| | - Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
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17
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Lee SB, Paek SM, Oh JM. Porous Hybrids Structure between Silver Nanoparticle and Layered Double Hydroxide for Surface-Enhanced Raman Spectroscopy. NANOMATERIALS 2021; 11:nano11020447. [PMID: 33578775 PMCID: PMC7916476 DOI: 10.3390/nano11020447] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/05/2021] [Accepted: 02/07/2021] [Indexed: 12/13/2022]
Abstract
Silver nanoparticle (AgNP), in terms of antibacterial, catalytic, electronic, and optical applications, is an attractive material. Especially, when prepared to furnish sharp edge and systematic particle orientation on the substrate, AgNPs can take advantage of surface-enhanced Raman spectroscopy (SERS). In this research, we suggested a synthetic method to immobilize the AgNP on metal oxide by utilizing Ag-thiolate and layered double hydroxide (LDH) as precursor and template, respectively. The layer-by-layer structure of LDH and Ag-thiolate transformed through reductive calcination to metal oxide and AgNP array. Physicochemical characterization, including powder X-ray diffraction, N2 adsorption–desorption, microscopies, and X-ray photoelectron spectroscopy, revealed that the AgNP with sufficient crystallinity and particle gap was obtained at relatively high calcination temperature, ~600 °C. UV-vis diffusion reflectance spectroscopy showed that the calcination temperature affected particle size and electronic structure of AgNP. The prepared materials were subjected to SERS tests toward 4-nitrothiophenol (4-NTP). The sample obtained at 600 °C exhibited 50 times higher substrate enhancement factor (SEF) than the one obtained at 400 °C, suggesting that the calcination temperature was a determining parameter to enhance SERS activity in current synthetic condition.
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Affiliation(s)
- Su-Bin Lee
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Korea;
| | - Seung-Min Paek
- Department of Chemistry, Kyungpook National University, Daegu 41566, Korea
- Correspondence: (S.-M.P.); (J.-M.O.); Tel.: +82-53-950-5335 (S.-M.P.); +82-2-2260-4977 (J.-M.O.)
| | - Jae-Min Oh
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Korea;
- Correspondence: (S.-M.P.); (J.-M.O.); Tel.: +82-53-950-5335 (S.-M.P.); +82-2-2260-4977 (J.-M.O.)
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18
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Zou Y, Zhang Y, Yu Q, Chen H. Photothermal bactericidal surfaces: killing bacteria using light instead of biocides. Biomater Sci 2021; 9:10-22. [DOI: 10.1039/d0bm00617c] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent developments of photothermal bactericidal surfaces based on immobilized photothermal agents to kill bacteria through hyperthermia effects are reviewed.
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Affiliation(s)
- Yi Zou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Yanxia Zhang
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital
- Soochow University
- Suzhou
- P. R. China
| | - Qian Yu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Hong Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
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19
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Huang XB, Wu SH, Hu HC, Sun JJ. AuNanostar@4-MBA@Au Core-Shell Nanostructure Coupled with Exonuclease III-Assisted Cycling Amplification for Ultrasensitive SERS Detection of Ochratoxin A. ACS Sens 2020; 5:2636-2643. [PMID: 32786384 DOI: 10.1021/acssensors.0c01162] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The "turn-on" mode surface-enhanced Raman scattering (SERS) aptasensor for ultrasensitive ochratoxin A (OTA) detection was developed based on the SERS "hot spots" of AuNanostar@4-MBA@Au core-shell nanostructures (AuNS@4-MBA@Au) and exonuclease III (Exo III)-assisted target cycle amplification strategy. Compared with conventional gold nanoparticles, AuNS@4-MBA@Au provides a much higher SERS enhancement factor because AuNS exhibits a larger surface roughness and the lightning rod effect, as well as an excellent electromagnetic field between the AuNS core and the Au shell, which contribute to the superstrong SERS signal. Meanwhile, Exo III-assisted target cycle amplification can be used as an effective method for the further amplified detection of OTA. Additionally, the utilization of streptavidin magnesphere paramagnetic particles offers a green, economical, and facile technology for the accumulation and separation of the signal probe AuNS@4-MBA@Au from solution. All these factors lead to a significant enhancement of detectable signals and superhigh sensitivity. As a result, the limit of detection as low as 0.25 fg mL-1 could be achieved, which was lower than that in the other reported literatures on SERS methods for OTA detection as we know. The developed SERS aptasensor also provides a promising tool for foodstuff detection.
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Affiliation(s)
- Xiao-Bin Huang
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Shao-Hua Wu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Hao-Cheng Hu
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jian-Jun Sun
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
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20
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Pramanik A, Mayer J, Patibandla S, Gates K, Gao Y, Davis D, Seshadri R, Ray PC. Mixed-Dimensional Heterostructure Material-Based SERS for Trace Level Identification of Breast Cancer-Derived Exosomes. ACS OMEGA 2020; 5:16602-16611. [PMID: 32685826 PMCID: PMC7364584 DOI: 10.1021/acsomega.0c01441] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/11/2020] [Indexed: 05/11/2023]
Abstract
Raman spectroscopy has capability for fingerprint molecular identification with high sensitivity if weak Raman scattering signal can be enhanced by several orders of magnitudes. Herein, we report a heterostructure-based surface-enhanced Raman spectroscopy (SERS) platform using 2D graphene oxide (GO) and 0D plasmonic gold nanostar (GNS), with capability of Raman enhancement factor (EF) in the range of ∼1010 via light-matter and matter-matter interactions. The current manuscript reveals huge Raman enhancement for heterostructure materials occurring via both electromagnetic enhancement mechanism though plasmonic GNS nanoparticle (EF ∼107) and chemical enhancement mechanism through 2D-GO material (EF ∼102). Finite-difference time-domain (FDTD) simulation data and experimental investigation indicate that GNS allows light to be concentrated into nanoscale "hotspots" formed on the heterostructure surface, which significantly enhanced Raman efficiency via a plasmon-exciton light coupling process. Notably, we have shown that mixed-dimensional heterostructure-based SERS can be used for tracking of cancer-derived exosomes from triple-negative breast cancer and HER2(+) breast cancer with a limit of detection (LOD) of 3.8 × 102 exosomes/mL for TNBC-derived exosomes and 4.4 × 102 exosomes/mL for HER2(+) breast cancer-derived exosomes.
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Affiliation(s)
- Avijit Pramanik
- Department
of Chemistry and Biochemistry, Jackson State
University, Jackson, Mississippi 39217, United States
| | - Justin Mayer
- Materials
Department, University of California, Santa Barbara, California 93106-5121, United States
| | - Shamily Patibandla
- Department
of Chemistry and Biochemistry, Jackson State
University, Jackson, Mississippi 39217, United States
| | - Kaelin Gates
- Department
of Chemistry and Biochemistry, Jackson State
University, Jackson, Mississippi 39217, United States
| | - Ye Gao
- Department
of Chemistry and Biochemistry, Jackson State
University, Jackson, Mississippi 39217, United States
| | - Dalephine Davis
- Department
of Chemistry and Biochemistry, Jackson State
University, Jackson, Mississippi 39217, United States
| | - Ram Seshadri
- Materials
Department, University of California, Santa Barbara, California 93106-5121, United States
| | - Paresh Chandra Ray
- Department
of Chemistry and Biochemistry, Jackson State
University, Jackson, Mississippi 39217, United States
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21
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Li M, Lin H, Paidi SK, Mesyngier N, Preheim S, Barman I. A Fluorescence and Surface-Enhanced Raman Spectroscopic Dual-Modal Aptasensor for Sensitive Detection of Cyanotoxins. ACS Sens 2020; 5:1419-1426. [PMID: 32314582 DOI: 10.1021/acssensors.0c00307] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The ability to detect trace analytes without necessitating solid surface attachment or complicated processing steps would facilitate the translation of sensors for monitoring environmental toxins in the field. To address a critical unmet need in fresh water ecology, we have developed a dual-modal aptamer-based biosensor (aptasensor), featuring fluorescence and surface-enhanced Raman spectroscopy (SERS), for sensitive and selective detection of hepatotoxin microcystin-LR (MC-LR). The rational sensor design is based on the high affinity of the cyanine (Cy3) dye-modified complementary DNA (Cy3-cDNA) strand toward the plasmonic gold nanostars (GNSs) in comparison to the Cy3-cDNA/aptamer duplex. The preferential binding of MC-LR toward the MC-LR-specific aptamer triggers the dissociation of Cy3-cDNA/aptamer duplexes, which switches the Cy3's fluorescence "off" and SERS "on" due to the proximity of Cy3 dye to the GNS surface. Both fluorescence and SERS intensities are observed to vary linearly with the MC-LR concentration over the range of investigation. We have achieved high sensitivity and excellent specificity with the aptasensor toward MC-LR, which can be attributed to the fluorescence quenching effect, significant SERS enhancement by the GNSs, and the high affinity of the aptamer toward the MC-LR analytes. We further demonstrate the applicability of the present aptasensor for detection of MC-LR in a diverse set of real water samples with high accuracy and excellent reproducibility. With further refinement, we believe that the aptamer-driven complementary assembly of the SERS and fluorescence sensing constructs can be applied for rapid, multiplexed, and robust measurements of environmental toxins in the field.
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Affiliation(s)
- Ming Li
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Hangduo Lin
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Santosh Kumar Paidi
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Nicolas Mesyngier
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Sarah Preheim
- Department of Environmental Health and Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Ishan Barman
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
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22
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Liang X, Miao X, Xiao W, Ye Q, Wang S, Lin J, Li C, Huang Z. Filter-Membrane-Based Ultrafiltration Coupled with Surface-Enhanced Raman Spectroscopy for Potential Differentiation of Benign and Malignant Thyroid Tumors from Blood Plasma. Int J Nanomedicine 2020; 15:2303-2314. [PMID: 32280222 PMCID: PMC7132009 DOI: 10.2147/ijn.s233663] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/01/2020] [Indexed: 12/24/2022] Open
Abstract
Objective The objective of this study is to evaluate the performance and feasibility of surface-enhanced Raman spectroscopy coupled with a filter membrane and advanced multivariate data analysis on identifying and differentiating benign and malignant thyroid tumors from blood plasma. Patients and Methods We proposed a membrane filter SERS technology for the differentiation between benign thyroid tumor and thyroid cancer. That is to say, by using filter membranes with optimal pore size, the blood plasma samples from thyroid tumor patients were pretreated with the macromolecular proteins being filtered out prior to SERS measurement. The SERS spectra of blood plasma ultrafiltrate obtained using filter membranes from 102 patients with thyroid tumors (70 thyroid cancers and 32 benign thyroid tumors) were then analyzed and compared. Two multivariate statistical analyses, principal component analysis-linear discriminate analysis (PCA-LDA) and Lasso-partial least squares-discriminant analysis (Lasso-PLS-DA), were performed on the SERS spectral data after background subtraction and normalization, as well as the first derivative processing, to analyze and compare the differential diagnosis of benign thyroid tumors and thyroid cancer. Results SERS measurements were performed in blood plasma acquired from a total of 102 thyroid tumor patients (benign thyroid tumor N=32; thyroid cancer N=70). By using filter membranes, the macromolecular proteins in blood plasma were effectively filtered out to yield high-quality SERS spectra. 84.3% discrimination accuracy between benign and malignant thyroid tumor was achieved using PCA-LDA method, while Lasso-PLS-DA yields a discrimination accuracy of 90.2%. Conclusion Our results demonstrate that SERS spectroscopy, coupled with ultrafiltration and multivariate analysis has the potential of providing a non-invasive, rapid, and objective detection and differentiation of benign and malignant thyroid tumors.
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Affiliation(s)
- Xiaozhou Liang
- Fujian Normal University, Ministry of Education, Key Laboratory of Optoelectronic Science and Technology for Medicine, Fujian Provincial Key Laboratory for Photonics Technology, Fuzhou, People's Republic of China
| | - Xuchao Miao
- Fujian Normal University, Ministry of Education, Key Laboratory of Optoelectronic Science and Technology for Medicine, Fujian Provincial Key Laboratory for Photonics Technology, Fuzhou, People's Republic of China
| | - Weijin Xiao
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, People's Republic of China
| | - Qin Ye
- Department of Head and Neck Surgery, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, People's Republic of China
| | - Sisi Wang
- Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, People's Republic of China
| | - Juqiang Lin
- Fujian Normal University, Ministry of Education, Key Laboratory of Optoelectronic Science and Technology for Medicine, Fujian Provincial Key Laboratory for Photonics Technology, Fuzhou, People's Republic of China
| | - Chao Li
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, People's Republic of China.,Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, People's Republic of China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, People's Republic of China
| | - Zufang Huang
- Fujian Normal University, Ministry of Education, Key Laboratory of Optoelectronic Science and Technology for Medicine, Fujian Provincial Key Laboratory for Photonics Technology, Fuzhou, People's Republic of China
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23
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Krishnan SK, Chipatecua Godoy Y. Deep Eutectic Solvent-Assisted Synthesis of Au Nanostars Supported on Graphene Oxide as an Efficient Substrate for SERS-Based Molecular Sensing. ACS OMEGA 2020; 5:1384-1393. [PMID: 32010809 PMCID: PMC6990437 DOI: 10.1021/acsomega.9b02759] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/17/2019] [Indexed: 05/25/2023]
Abstract
The development of hybrid nanostructures of graphene oxide (GO) and metal nanoparticles (NPs) is of paramount interest for highly flexible surface-enhanced Raman scattering (SERS) substrate-based molecular sensing. In this work, we report a simple and eco-friendly synthesis strategy for the synthesis of a three-dimensional (3D) GO/gold nanostar (3D GO/Au NS) hybrid nanocomposite using deep eutectic solvent (DES) for SERS-based molecular sensing. The 3D GO/Au NS hybrid nanocomposite was obtained by a two-step synthetic process. In the first step, the GO nanosheets of thickness ∼1.25 nm were homogeneously dispersed in choline chloride/urea (molar ratio of 1:2)-derived DES, followed by functionalization of -NH groups using 3-aminopropyltriethoxysilane. Afterward, the presynthesized Au NSs of size ranging between 150-200 nm were then covalently attached on the -NH-functionalized GO nanosheets mediated by DES at 60 °C to obtain 3D GO/Au NS hybrid nanocomposites. Importantly, the SERS substrate fabricated using the 3D GO/Au NS hybrid nanocomposite exhibits highly enhanced SERS activity with an enhancement factor of 1.7 × 105 and high sensitivity for the detection of crystal violet with a concentration up to 10-11 M. The green synthetic approach presented here can be expected to be promising for the large-scale fabrication of GO-metal NP-based hybrid nanostructures for their potential applications in SERS-based sensing.
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Affiliation(s)
- Siva Kumar Krishnan
- CONACYT-Instituto
de Física, Benemérita Universidad
Autónoma de Puebla, Apdo. Postal J-48, Puebla 72570, Mexico
| | - Yuri Chipatecua Godoy
- CINVESTAV-Unidad
Queretaro, Lib. Norponiente
2000, Fracc. Real de Juriquilla, Querétaro 76230, Qro. Mexico
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24
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Ly NH, Joo SW. Recent advances in cancer bioimaging using a rationally designed Raman reporter in combination with plasmonic gold. J Mater Chem B 2020; 8:186-198. [DOI: 10.1039/c9tb01598a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gold nanomaterials (AuNMs) have been widely implemented for the purpose of bioimaging of cancer and tumor cells in combination with Raman spectral markers.
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Affiliation(s)
| | - Sang-Woo Joo
- Department of Chemistry
- Soongsil University
- Seoul 06978
- Korea
- Department of Information Communication, Materials
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25
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A graphene oxide-gold nanostar hybrid based-paper biosensor for label-free SERS detection of serum bilirubin for diagnosis of jaundice. Biosens Bioelectron 2019; 145:111713. [DOI: 10.1016/j.bios.2019.111713] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 01/02/2023]
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26
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Zhang C, Paria D, Semancik S, Barman I. Composite-Scattering Plasmonic Nanoprobes for Label-Free, Quantitative Biomolecular Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901165. [PMID: 31394029 PMCID: PMC6759334 DOI: 10.1002/smll.201901165] [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: 03/04/2019] [Revised: 05/09/2019] [Indexed: 05/03/2023]
Abstract
Biosensing based on localized surface plasmon resonance (LSPR) relies on concentrating light to a nanometeric spot and leads to a highly enhanced electromagnetic field near the metal nanostructure. Here, a design of plasmonic nanostructures based on rationally structured metal-dielectric combinations is presented, called composite scattering probes (CSPs), to generate an integrated multimodal biosensing platform featuring LSPR and surface-enhanced Raman spectroscopy (SERS). Specifically, CSP configurations are proposed, which have several prominent resonance peaks enabling higher tunability and sensitivity for self-referenced multiplexed analyte sensing. Using electron-beam evaporation and thermal dewetting, large-area, uniform, and tunable CSPs are fabricated, which are suitable for label-free LSPR and SERS measurements. The CSP prototypes are used to demonstrate refractive index sensing and molecular analysis using albumin as a model analyte. By using partial least squares on recorded absorption profiles, differentiation of subtle changes in refractive index (as low as 0.001) in the CSP milieu is demonstrated. Additionally, CSPs facilitate complementary untargeted plasmon-enhanced Raman measurements from the sample's compositional contributors. With further refinement, it is envisioned that the method may lead to a sensitive, versatile, and tunable platform for quantitative concentration determination and molecular fingerprinting, particularly where limited a priori information of the sample is available.
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Affiliation(s)
- Chi Zhang
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Debadrita Paria
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Steve Semancik
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD, USA
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Radiology & Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Correspondence: Ishan Barman, Johns Hopkins University, Whiting School of Engineering, Department of Mechanical Engineering, Latrobe Hall 103, Baltimore, MD 21218, USA. Office Phone: 410-516-0656,
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27
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Wang H, Pu Y, Shan B, Li M. Combining Experiments and Theoretical Modeling To Interrogate the Anisotropic Growth and Structure-Plasmonic Property Relationships of Gold Nanostars. Inorg Chem 2019; 58:12457-12466. [PMID: 31441302 DOI: 10.1021/acs.inorgchem.9b02187] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a combined strategy of experiments and theoretical modeling for understanding the evolution of the morphology and plasmonic properties of gold nanostars (GNSs) in the seed-mediated synthesis by changing the poly(vinylpyrrolidone) (PVP) molecular weight, PVP concentration, and synthesis temperature. A dramatic change of the morphology of GNSs as a function of these synthesis parameters is observed that is related to variations of the plasmonic properties and thus surface-enhanced Raman spectroscopy (SERS) enhancement. We observe the favorable growth of anisotropic GNS structures with sharp protruding tips using PVP of low molecular weight and of rounded GNSs with short protruding tips using PVP of high molecular weight. The PVP concentration has less influence on the core size than on the tip length of GNSs. The high synthesis temperature causes the rounding of the GNS structure. Finite-difference time-domain (FDTD) simulations reveal a remarkable correlation of the GNS morphology with the plasmonic properties as well as the SERS enhancement. The maximum local electric field enhancement occurs at the apex of the sharp protruding tips of the GNSs. The weak plasmonic coupling is observed between the protruding tips of GNSs because of their large separation distance, and increasing the number of protruding tips beyond two only increases the extinction cross section without further red-shifting the plasmon peak. A resonance overlap of the plasmon band with the incident laser wavelength is responsible for the morphology-dependent plasmonic properties and SERS enhancement. The present work demonstrates that a mechanistic understanding of the structural evolution of GNSs along with their morphology-plasmonic property correlation can be achieved through the combination of experimental investigations and FDTD-based theoretical modeling.
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Affiliation(s)
- Haitao Wang
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy , Central South University , Changsha , Hunan 410083 , China
| | - Yuhan Pu
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy , Central South University , Changsha , Hunan 410083 , China
| | - Beibei Shan
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy , Central South University , Changsha , Hunan 410083 , China
| | - Ming Li
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy , Central South University , Changsha , Hunan 410083 , China
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28
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Li M, Paidi SK, Sakowski E, Preheim S, Barman I. Ultrasensitive Detection of Hepatotoxic Microcystin Production from Cyanobacteria Using Surface-Enhanced Raman Scattering Immunosensor. ACS Sens 2019; 4:1203-1210. [PMID: 30990314 PMCID: PMC6776237 DOI: 10.1021/acssensors.8b01453] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Microcystin-LR (MC-LR) is considered the most common hazardous toxin produced during harmful algal blooms. In addition to potential risk of long-term exposure to low concentrations in drinking water, acute toxicity due to MC-LR resulting from algal blooms could result in fatalities in rare cases. Although several methods are currently available to detect MC-LR, development of a low-cost, ultrasensitive measurement method would help limit exposure by enabling early detection and continuous monitoring of MC-LR. Here, we develop a surface-enhanced Raman scattering (SERS) spectroscopic immunosensor for detection and quantification of the hepatotoxic MC-LR toxin in aquatic settings with excellent robustness, selectivity, and sensitivity. We demonstrate that the developed SERS sensor can reach a limit of detection (0.014 μg/L) at least 1 order of magnitude lower and display a linear dynamic detection range (0.01 μg/L to 100 μg/L) 2 orders of magnitude wider in comparison to the commercial enzyme-linked immunosorbent assay test. The superior analytical performance of this SERS immunosensor enables monitoring of the dynamic production of MC-LR from a Microcystis aeruginosa culture. We believe that the present method could serve as a useful tool for detection of hepatotoxic microcystin toxins in various aquatic settings such as drinking water, lakes, and reservoirs. Further development of this technique could result in single-cell microcystin resolution or real-time monitoring to mitigate the associated toxicity and economic loss.
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Affiliation(s)
- Ming Li
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University, Changsha, Hunan 410083, China
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Santosh Kumar Paidi
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Eric Sakowski
- Department of Environmental Health and Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Sarah Preheim
- Department of Environmental Health and Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Ishan Barman
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, 21287, USA
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Xu W, Paidi SK, Qin Z, Huang Q, Yu CH, Pagaduan JV, Buehler MJ, Barman I, Gracias DH. Self-Folding Hybrid Graphene Skin for 3D Biosensing. NANO LETTERS 2019; 19:1409-1417. [PMID: 30433789 PMCID: PMC6432654 DOI: 10.1021/acs.nanolett.8b03461] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Biological samples such as cells have complex three-dimensional (3D) spatio-molecular profiles and often feature soft and irregular surfaces. Conventional biosensors are based largely on 2D and rigid substrates, which have limited contact area with the entirety of the surface of biological samples making it challenging to obtain 3D spatially resolved spectroscopic information, especially in a label-free manner. Here, we report an ultrathin, flexible skinlike biosensing platform that is capable of conformally wrapping a soft or irregularly shaped 3D biological sample such as a cancer cell or a pollen grain, and therefore enables 3D label-free spatially resolved molecular spectroscopy via surface-enhanced Raman spectroscopy (SERS). Our platform features an ultrathin thermally responsive poly( N-isopropylacrylamide)-graphene-nanoparticle hybrid skin that can be triggered to self-fold and wrap around 3D micro-objects in a conformal manner due to its superior flexibility. We highlight the utility of this 3D biosensing platform by spatially mapping the 3D molecular signatures of a variety of microparticles including silica microspheres, spiky pollen grains, and human breast cancer cells.
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Affiliation(s)
- Weinan Xu
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Santosh K. Paidi
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Zhao Qin
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Qi Huang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Chi-Hua Yu
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Jayson V. Pagaduan
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Markus J. Buehler
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - David H. Gracias
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Corresponding Author:
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30
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Li L, Liao M, Chen Y, Shan B, Li M. Surface-enhanced Raman spectroscopy (SERS) nanoprobes for ratiometric detection of cancer cells. J Mater Chem B 2019; 7:815-822. [DOI: 10.1039/c8tb02828a] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A surface-enhanced Raman spectroscopic strategy is developed for ratiometric detection of cancer cells by quantifying the expression ratio of extracellular biomarkers.
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Affiliation(s)
- Linhu Li
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University
- Changsha
- China
| | - Mengling Liao
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University
- Changsha
- China
| | - Yingfan Chen
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University
- Changsha
- China
| | - Beibei Shan
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University
- Changsha
- China
| | - Ming Li
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University
- Changsha
- China
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31
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Krishnan SK, Esparza R, Flores-Ruiz FJ, Padilla-Ortega E, Luna-Bárcenas G, Sanchez IC, Pal U. Seed-Mediated Growth of Ag@Au Nanodisks with Improved Chemical Stability and Surface-Enhanced Raman Scattering. ACS OMEGA 2018; 3:12600-12608. [PMID: 31457992 PMCID: PMC6644819 DOI: 10.1021/acsomega.8b02333] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 09/20/2018] [Indexed: 05/20/2023]
Abstract
Bimetallic Ag@Au nanoparticles (NPs) have received significant research interest because of their unique optical properties and molecular sensing ability through surface-enhanced Raman scattering (SERS). However, the synthesis of Ag@Au core-shell plasmonic nanostructures with precisely controlled size and shape remained a great challenge. Here, we report a simple approach for the synthesis of bimetallic Ag@Au nanodisks of about 13.5 nm thickness and different diameters through a seed-mediated growth process. The synthesis involves the conformal deposition of Au atoms at the corner sites of Ag nanoplate (AgNPL) seeds coupled with site-selective oxidative etching of AgNPL edges to generate Ag@Au nanodisks. The resultant Ag@Au nanodisks manifest significantly improved chemical stability and tunable localized surface plasmon resonance from the visible to the near-infrared spectral range. Moreover, in comparison to AgNPLs, the Ag@Au nanodisks showed greatly enhanced SERS performance with an enhancement factor up to 0.47 × 105, which is nearly 3-fold higher than that of the original AgNPLs (0.18 × 105). Furthermore, the Ag@Au nanodisks show a high sensitivity for detecting probe molecules such as crystal violet of concentration as low as 10-9 M and excellent reproducibility, with the SERS intensity fluctuation less than 12.5%. The synthesis route adapted for the controlled fabrication of Ag@Au nanodisks can be a potential platform for maneuvering other bimetallic plasmonic nanostructures useful for plasmonics and sensing applications.
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Affiliation(s)
- Siva Kumar Krishnan
- CONACYT-Instituto
de Física and Instituto de Física, Benemérita
Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla 72570, Mexico
- E-mail:
| | - Rodrigo Esparza
- Centro
de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Santiago de Querétaro, Querétaro 76230, Mexico
| | - F. J. Flores-Ruiz
- CONACYT-Instituto
de Física and Instituto de Física, Benemérita
Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla 72570, Mexico
| | - Erika Padilla-Ortega
- Graduate
Multidisciplinary Program in Environmental Sciences, Autonomous University of San Luis Potosi, San Luis Potosi 78210, Mexico
| | | | - Isaac. C. Sanchez
- Department
of Chemical Engineering, The University
of Texas at Austin, Austin, Texas 78712, United States
| | - Umapada Pal
- CONACYT-Instituto
de Física and Instituto de Física, Benemérita
Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla 72570, Mexico
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33
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Xi W, Phan HT, Haes AJ. How to accurately predict solution-phase gold nanostar stability. Anal Bioanal Chem 2018; 410:6113-6123. [PMID: 29748758 PMCID: PMC6119116 DOI: 10.1007/s00216-018-1115-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/24/2018] [Accepted: 04/26/2018] [Indexed: 12/22/2022]
Abstract
Unwanted nanoparticle aggregation and/or agglomeration may occur when anisotropic nanoparticles are dispersed in various solvents and matrices. While extended Derjaguin-Landau-Verwey-Overbeek (DLVO) theory has been successfully applied to predict nanoparticle stability in solution, this model fails to accurately predict the physical stability of anisotropic nanostructures; thus limiting its applicability in practice. Herein, DLVO theory was used to accurately predict gold nanostar stability in solution by investigating how the choice of the nanostar dimension considered in calculations influences the calculated attractive and repulsive interactions between nanostructures. The use of the average radius of curvature of the nanostar tips instead of the average radius as the nanostar dimension of interest increases the accuracy with which experimentally observed nanoparticle behavior can be modeled theoretically. This prediction was validated by measuring time-dependent localized surface plasmon resonance (LSPR) spectra of gold nanostars suspended in solutions with different ionic strengths. Minimum energy barriers calculated from collision theory as a function of nanoparticle concentration were utilized to make kinetic predictions. All in all, these studies suggest that choosing the appropriate gold nanostar dimension is crucial to fully understanding and accurately predicting the stability of anisotropic nanostructures such as gold nanostars; i.e., whether the nanostructures remain stable and can be used reproducibly, or whether they aggregate and exhibit inconsistent results. Thus, the present work provides a deeper understanding of internanoparticle interactions in solution and is expected to lead to more consistent and efficient analytical and bioanalytical applications of these important materials in the future. Graphical abstract ᅟ.
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Affiliation(s)
- Wenjing Xi
- Department of Chemistry, University of Iowa, 204 IATL, Iowa, 52242, USA
| | - Hoa T Phan
- Department of Chemistry, University of Iowa, 204 IATL, Iowa, 52242, USA
| | - Amanda J Haes
- Department of Chemistry, University of Iowa, 204 IATL, Iowa, 52242, USA.
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34
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Yin T, Li Y, Bian K, Zhu R, Liu Z, Niu K, Liu H, Gao Z, Gao D. Self-assembly synthesis of vapreotide‑gold hybrid nanoflower for photothermal antitumor activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:716-723. [PMID: 30274105 DOI: 10.1016/j.msec.2018.08.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 07/14/2018] [Accepted: 08/06/2018] [Indexed: 12/15/2022]
Abstract
Based on the self-assembly properties of vapreotide acetate (Vap), one kind of novel vapreotide acetate‑gold nanoflowers (Vap-AuNFs) was fabricated for the first time by biomimetic mineralization method using Vap as a template. The Vap-AuNFs possessed anisotropic structure with a large absorption cross-section, which were face-centered cubic crystalline, exhibiting a remarkable monodisperse, narrow size (154 nm) distribution and good stability in aqueous solution. The apparent anisotropy of the gold nanostructure with high molar extinction coefficient can cause significantly higher plasmon absorption of Vap-AuNFs in the near infrared (NIR) region compared with Au nanoparticles (AuNPs), so the nanocomplex can induce remarkably enhanced photothermal conversion efficiency under NIR light irradiation. Breathtakingly, Vap-AuNFs exhibited superior biocompatibilities compared to AuNPs, as well as enhanced Hela cells lethality under NIR irradiation. This novel method was simple, low cost and green for the design and preparation of anisotropic gold nanoflowers with outstanding NIR laser-induced local hyperthermia, highlighting their potential applications in biomedical fields.
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Affiliation(s)
- Tian Yin
- Chemical Key Lab of Hebei Province, Department of Biological Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, China 066004; Qinhuangdao Changsheng Agricultural Science and Technology Development Co., Ltd, No. 12, Donghai Road, Qinhuangdao 066004, China
| | - Yanji Li
- Chemical Key Lab of Hebei Province, Department of Biological Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, China 066004
| | - Kexin Bian
- Chemical Key Lab of Hebei Province, Department of Biological Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, China 066004
| | - Ruiyan Zhu
- Chemical Key Lab of Hebei Province, Department of Biological Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, China 066004; Qinhuangdao Changsheng Agricultural Science and Technology Development Co., Ltd, No. 12, Donghai Road, Qinhuangdao 066004, China
| | - Zhiwei Liu
- Chemical Key Lab of Hebei Province, Department of Biological Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, China 066004
| | - Kang Niu
- Chemical Key Lab of Hebei Province, Department of Biological Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, China 066004
| | - Huan Liu
- Chemical Key Lab of Hebei Province, Department of Biological Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, China 066004
| | - Zhengrong Gao
- Beijing Ditan Hospital Capital Medical University, No.8 Jingshun East Road, Chaoyang District, Beijing 100015, China
| | - Dawei Gao
- Chemical Key Lab of Hebei Province, Department of Biological Engineering, Yanshan University, No.438 Hebei Street, Qinhuangdao, China 066004; Qinhuangdao Changsheng Agricultural Science and Technology Development Co., Ltd, No. 12, Donghai Road, Qinhuangdao 066004, China.
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35
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Pu Y, Zhao Y, Zheng P, Li M. Elucidating the Growth Mechanism of Plasmonic Gold Nanostars with Tunable Optical and Photothermal Properties. Inorg Chem 2018; 57:8599-8607. [PMID: 29953211 DOI: 10.1021/acs.inorgchem.8b01354] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuhan Pu
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University, Changsha, Hunan 410083, China
| | - Yawen Zhao
- China Academy of Engineering Physics, Mianyang 621900, China
| | - Peng Zheng
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, West Virginia 26506-6106, United States
| | - Ming Li
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University, Changsha, Hunan 410083, China
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36
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Wen S, Su Y, Wu R, Zhou S, Min Q, Fan GC, Jiang LP, Song RB, Zhu JJ. Plasmonic Au nanostar Raman probes coupling with highly ordered TiO 2/Au nanotube arrays as the reliable SERS sensing platform for chronic myeloid leukemia drug evaluation. Biosens Bioelectron 2018; 117:260-266. [PMID: 29909197 DOI: 10.1016/j.bios.2018.06.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/25/2018] [Accepted: 06/01/2018] [Indexed: 10/14/2022]
Abstract
The accurate therapeutic evaluation for chronic myeloid leukemia (CML) drug is of great importance to minimize side effects and enhance efficacy. Herein, a facile and precise surface-enhanced scattering (SERS) approach based on coupled plasmonic field has been introduced to evaluate the therapeutic outcomes of antileukemia drug through ultrasensitive assay of caspase-3 activity in apoptotic cells. Caspase-3 as an apoptosis indicator could specifically cleave the N-terminus of biotinylated DEVD-peptide (biotin-Gly-Asp-Gly-Asp-Glu-Val-Asp-Gly-Cys) immobilized on the Au nanoparticle-decorated TiO2 nanotube arrays (TiO2/Au NTAs) substrate. After the enzyme cleavage with caspase-3, Raman-labelled Au nanostar (AuNS) probes captured the residual DEVD-peptides via the recognition between streptavidin and biotin, thus resulting in an enhanced Raman response on the SERS platform. The variation of Raman intensity revealed caspase-3 activity that reflected the chemotherapeutic effect. On this platform, AuNS nanoprobes offered a large number of binding sites and intrinsic "hot spots" for Raman reporters, while TiO2/Au NTAs rendered a homogenously coupled electromagnetic field between the adjacent repeated units over the large area. In particular, a spatially expanding plasmonic field formed by coupling AuNSs with TiO2/Au NTAs would further heighten Raman enhancement. Taking these advantages, the strong and uniform Raman signals were achieved. Furthermore, the practicability investigation witnessed that the proposed SERS strategy was available to evaluate the therapeutic effect of dasatinib on CML K562 cells. The developed method possesses fascinating advantages of cost-effectiveness, excellent reproducibility and high sensitivity, which endows it with promising potential in apoptosis monitoring and anticancer drug development.
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Affiliation(s)
- Shengping Wen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Yu Su
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Rong Wu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Shiwei Zhou
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Qianhao Min
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Gao-Chao Fan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China; Key Laboratory of Sensor Analysis of Tumor Marker of Education Ministry, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Li-Ping Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China
| | - Rong-Bin Song
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China.
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China.
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37
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Xi W, Shrestha BK, Haes AJ. Promoting Intra- and Intermolecular Interactions in Surface-Enhanced Raman Scattering. Anal Chem 2017; 90:128-143. [DOI: 10.1021/acs.analchem.7b04225] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wenjing Xi
- Department of Chemistry, University of Iowa, Iowa City, Iowa, 55242 United States
| | - Binaya K. Shrestha
- Department of Chemistry, University of Iowa, Iowa City, Iowa, 55242 United States
| | - Amanda J. Haes
- Department of Chemistry, University of Iowa, Iowa City, Iowa, 55242 United States
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38
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GHOSH CATHERINE, ASIF AMIN MD, JANA BIMAN, BHATTACHARYYA KANKAN. Size and Structure of Cytochrome-c bound to Gold nano-clusters: Effect of Ethanol. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1239-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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39
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Mettbach U, Strnad M, Mancuso S, Baluška F. Immunogold-EM analysis reveal brefeldin a-sensitive clusters of auxin in Arabidopsis root apex cells. Commun Integr Biol 2017; 10:e1327105. [PMID: 28702129 PMCID: PMC5501221 DOI: 10.1080/19420889.2017.1327105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 04/13/2017] [Accepted: 04/29/2017] [Indexed: 11/05/2022] Open
Abstract
Immunogold electron microscopy (EM) study of Arabidopsis root apices analyzed using specific IAA antibody and high-pressure freeze fixation technique allowed, for the first time, vizualization of subcellular localization of IAA in cells assembled intactly within plant tissues. Our quantitative analysis reveals that there is considerable portion of IAA gold particles that clusters within vesicles and membraneous compartments in all root apex cells. There are clear tissue-specific and developmental differences of clustered IAA in root apices. These findings have significant consequences for our understanding of this small molecule which is controlling plant growth, development and behavior.
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Affiliation(s)
| | - M. Strnad
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany AS CR & Palacký University, Olomouc, Czech Republic
| | - S. Mancuso
- Department of Plant, Soil and Environmental Science & LINV, University of Florence, Sesto Fiorentino, Italy
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40
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Enzyme activity of α-chymotrypsin: Deactivation by gold nano-cluster and reactivation by glutathione. J Colloid Interface Sci 2017; 494:74-81. [DOI: 10.1016/j.jcis.2017.01.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 01/07/2017] [Accepted: 01/09/2017] [Indexed: 11/15/2022]
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41
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Jin Q, Li M, Polat B, Paidi SK, Dai A, Zhang A, Pagaduan JV, Barman I, Gracias DH. Mechanical Trap Surface‐Enhanced Raman Spectroscopy for Three‐Dimensional Surface Molecular Imaging of Single Live Cells. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700695] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Qianru Jin
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Ming Li
- School of Materials Science and Engineering Central South University, Changsha Hunan 410083 China
- Department of Mechanical Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Beril Polat
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Santosh K. Paidi
- Department of Mechanical Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Aimee Dai
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Amy Zhang
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Jayson V. Pagaduan
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Ishan Barman
- Department of Mechanical Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
- Department of Oncology The Johns Hopkins University USA
| | - David H. Gracias
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
- Department of Materials Science and Engineering The Johns Hopkins University USA
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42
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Jin Q, Li M, Polat B, Paidi SK, Dai A, Zhang A, Pagaduan JV, Barman I, Gracias DH. Mechanical Trap Surface‐Enhanced Raman Spectroscopy for Three‐Dimensional Surface Molecular Imaging of Single Live Cells. Angew Chem Int Ed Engl 2017; 56:3822-3826. [DOI: 10.1002/anie.201700695] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Qianru Jin
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Ming Li
- School of Materials Science and Engineering Central South University, Changsha Hunan 410083 China
- Department of Mechanical Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Beril Polat
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Santosh K. Paidi
- Department of Mechanical Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Aimee Dai
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Amy Zhang
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Jayson V. Pagaduan
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
| | - Ishan Barman
- Department of Mechanical Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
- Department of Oncology The Johns Hopkins University USA
| | - David H. Gracias
- Department of Chemical and Biomolecular Engineering The Johns Hopkins University 3400 N. Charles St. Baltimore MD 21218 USA
- Department of Materials Science and Engineering The Johns Hopkins University USA
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43
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Song G, Zhou H, Gu J, Liu Q, Zhang W, Su H, Su Y, Yao Q, Zhang D. Tumor marker detection using surface enhanced Raman spectroscopy on 3D Au butterfly wings. J Mater Chem B 2017; 5:1594-1600. [PMID: 32263931 DOI: 10.1039/c6tb03026b] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Tumor markers are usually over-expressed in human body fluids during the development of cancers. Monitoring tumor markers' level is thus important for early diagnosis and screening of cancers. One way to achieve this is based on the surface enhanced Raman scattering (SERS) technique that can drastically amplify Raman signals of analytes on a plasmonic metal (e.g., Au, Ag, and Cu) surface. However, this promising method suffers from aggregation of plasmonic nanoparticles. Here we report a stable, reproducible, and facile SERS-based readout method to detect an important tumor marker, carcinoembryonic antigen (CEA). This route utilizes Au butterfly wings with natural three dimensional (3D) hierarchical sub-micrometer structures rather than relying on the aggregates of metal nanoparticles. The Au butterfly wings show excellent SERS property and are temperature (80 °C) and time (6 months) stable on a sub-micrometer scale. Thus, the detecting antibodies and enzyme-linked secondary antibodies that are usually applied in conventional enzyme-linked immunosorbent assay (ELISA) can be replaced by chemically synthesized CEA aptamers, significantly simplifying the whole detection process. We demonstrate the feasibility of this method via quantitative detection of clinical CEA level in human body fluids. This work thus demonstrates a promising tumor marker detection technique based on a hierarchical sub-micrometer SERS structure, which could be useful for the mass screening of early stage cancers.
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Affiliation(s)
- Guofen Song
- State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
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44
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Aioub M, Panikkanvalappil SR, El-Sayed MA. Platinum-Coated Gold Nanorods: Efficient Reactive Oxygen Scavengers That Prevent Oxidative Damage toward Healthy, Untreated Cells during Plasmonic Photothermal Therapy. ACS NANO 2017; 11:579-586. [PMID: 28029783 DOI: 10.1021/acsnano.6b06651] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
As a minimally invasive therapeutic strategy, gold nanorod (AuNR)-based plasmonic photothermal therapy (PPT) has shown significant promise for the selective ablation of cancer cells. However, the heat stress experienced by cells during the PPT treatment produces significant amounts of reactive oxygen species (ROS), which could harm healthy, untreated tissue near the point of care by inducing irreversible damage to DNA, lipids, and proteins, potentially causing cellular dysfunction or mutation. In this study, we utilized biocompatible Pt-coated AuNRs (PtAuNRs) with different platinum shell thicknesses as an alternative to AuNRs often used for the treatment. We show that the PtAuNRs maintain the efficacy of traditional AuNRs for inducing cell death while scavenging the ROS formed as a byproduct during PPT treatment, thereby protecting healthy, untreated cells from indirect death resulting from ROS formation. The synergistic effect of PtAuNRs in effectively killing cancer cells through hyperthermia with the simultaneous removal of heat stress induced ROS during PPT was validated in vitro using cell viability and fluorescence assays. Our results suggest that the high photothermal efficiency and ROS-scavenging activity of PtAuNRs makes them ideal candidates to improve the therapeutic efficacy of PPT treatment while reducing the risk of undesired side effects due to heat-stress-induced ROS formation.
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Affiliation(s)
- Mena Aioub
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Sajanlal R Panikkanvalappil
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Mostafa A El-Sayed
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
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45
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Kumar-Krishnan S, Estevez-González M, Pérez R, Esparza R, Meyyappan M. A general seed-mediated approach to the synthesis of AgM (M = Au, Pt, and Pd) core–shell nanoplates and their SERS properties. RSC Adv 2017. [DOI: 10.1039/c7ra04301e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphical abstract describing a general pH-dependent synthetic steps for the preparation of AgM (Au, Pt and Pd) triangular core–shell nanoplates and hollow nanoframes.
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Affiliation(s)
- Siva Kumar-Krishnan
- Centro de Física Aplicada y Tecnología Avanzada
- Universidad Nacional Autónoma de México
- Santiago de Querétaro
- Mexico
| | - M. Estevez-González
- Centro de Física Aplicada y Tecnología Avanzada
- Universidad Nacional Autónoma de México
- Santiago de Querétaro
- Mexico
| | - Ramiro Pérez
- Centro de Física Aplicada y Tecnología Avanzada
- Universidad Nacional Autónoma de México
- Santiago de Querétaro
- Mexico
| | - Rodrigo Esparza
- Centro de Física Aplicada y Tecnología Avanzada
- Universidad Nacional Autónoma de México
- Santiago de Querétaro
- Mexico
| | - M. Meyyappan
- Center for Nanotechnology
- NASA Ames Research Center
- Mountain View
- USA
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46
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Gold nanostars for efficient in vitro and in vivo real-time SERS detection and drug delivery via plasmonic-tunable Raman/FTIR imaging. Biomaterials 2016; 106:87-97. [DOI: 10.1016/j.biomaterials.2016.08.014] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/06/2016] [Accepted: 08/10/2016] [Indexed: 11/18/2022]
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47
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Li M, Banerjee SR, Zheng C, Pomper MG, Barman I. Ultrahigh affinity Raman probe for targeted live cell imaging of prostate cancer. Chem Sci 2016; 7:6779-6785. [PMID: 28451123 PMCID: PMC5356002 DOI: 10.1039/c6sc01739h] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 07/14/2016] [Indexed: 01/29/2023] Open
Abstract
Precise visualization of tumor margins with characterization of microscopic tumor invasion are unmet needs in prostate oncology that demand approaches with high sensitivity and specificity. To address those needs we report surface-enhanced Raman scattering (SERS) based optical imaging for prostate cancer using a combination of live cell Raman microscopy, optimally engineered SERS tags and a urea-based small-molecule inhibitor of prostate-specific membrane antigen (PSMA) as a targeting moiety. We develop gold nanostar based SERS agents that offer ultrahigh binding affinity to PSMA with nearly four orders of magnitude lower IC50 values in relation to existing clinical imaging agents. This combination enables selective recognition of prostate cancer cells, and facilitates quantitative and photostable Raman measurements. Using Raman microscopy to analyze phenotypically similar prostate cancer cell lines differing only in PSMA expression, we demonstrate facile, site-selective recognition using as low as 20 pM of the SERS agent for imaging, opening the door for spectroscopic detection of prostate and other PSMA-expressing tumors in vivo.
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Affiliation(s)
- Ming Li
- Department of Mechanical Engineering , Johns Hopkins University , Baltimore , Maryland 21218 , USA . ;
| | - Sangeeta Ray Banerjee
- The Sidney Kimmel Comprehensive Cancer Center , Johns Hopkins University School of Medicine , Baltimore , Maryland 21287 , USA .
- The Russell H. Morgan Department of Radiology and Radiological Sciences , Johns Hopkins University School of Medicine , Baltimore , Maryland 21287 , USA
| | - Chao Zheng
- Department of Mechanical Engineering , Johns Hopkins University , Baltimore , Maryland 21218 , USA . ;
- Department of Breast Surgery , The Second Hospital of Shandong University , Jinan , Shandong 25000 , China
| | - Martin G Pomper
- The Sidney Kimmel Comprehensive Cancer Center , Johns Hopkins University School of Medicine , Baltimore , Maryland 21287 , USA .
- The Russell H. Morgan Department of Radiology and Radiological Sciences , Johns Hopkins University School of Medicine , Baltimore , Maryland 21287 , USA
| | - Ishan Barman
- Department of Mechanical Engineering , Johns Hopkins University , Baltimore , Maryland 21218 , USA . ;
- The Sidney Kimmel Comprehensive Cancer Center , Johns Hopkins University School of Medicine , Baltimore , Maryland 21287 , USA .
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48
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Zhao Z, Zheng Z, Roux C, Delmas C, Marty JD, Kahn ML, Mingotaud C. Importance of the Correlation between Width and Length in the Shape Analysis of Nanorods: Use of a 2D Size Plot To Probe Such a Correlation. Chemistry 2016; 22:12424-9. [PMID: 27460632 DOI: 10.1002/chem.201601837] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Indexed: 01/15/2023]
Abstract
Analysis of nanoparticle size through a simple 2D plot is proposed in order to extract the correlation between length and width in a collection or a mixture of anisotropic particles. Compared to the usual statistics on the length associated with a second and independent statistical analysis of the width, this simple plot easily points out the various types of nanoparticles and their (an)isotropy. For each class of nano-objects, the relationship between width and length (i.e., the strong or weak correlations between these two parameters) may suggest information concerning the nucleation/growth processes. It allows one to follow the effect on the shape and size distribution of physical or chemical processes such as simple ripening. Various electron microscopy pictures from the literature or from the authors' own syntheses are used as examples to demonstrate the efficiency and simplicity of the proposed 2D plot combined with a multivariate analysis.
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Affiliation(s)
- Zhihua Zhao
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062, Toulouse Cedex 9, France.,Laboratory of Coordination Chemistry, CNRS UPR 8241, University of Toulouse, 205, route de Narbonne, 31077, Toulouse, France
| | - Zhiqin Zheng
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062, Toulouse Cedex 9, France.,Laboratory of Coordination Chemistry, CNRS UPR 8241, University of Toulouse, 205, route de Narbonne, 31077, Toulouse, France
| | - Clément Roux
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Céline Delmas
- MIAT, Université de Toulouse, INRA, 31326, Castanet-Tolosan, France
| | - Jean-Daniel Marty
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Myrtil L Kahn
- Laboratory of Coordination Chemistry, CNRS UPR 8241, University of Toulouse, 205, route de Narbonne, 31077, Toulouse, France.
| | - Christophe Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118, route de Narbonne, 31062, Toulouse Cedex 9, France.
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49
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Perez-Mayen L, Oliva J, Salas P, De la Rosa E. Nanomolar detection of glucose using SERS substrates fabricated with albumin coated gold nanoparticles. NANOSCALE 2016; 8:11862-11869. [PMID: 27230115 DOI: 10.1039/c6nr00163g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This work presents the design of substrates for Surface Enhanced Raman Scattering (SERS) using star-like gold nanoparticles synthesized by a wet chemical method. The SERS substrates were used for glucose detection for concentrations as low as 10(-7) M, which represents an enhancement factor (EF) of 10(9), as a result of the hot spot formed by the spike termination and appropriate distribution of the gold nanoparticles. An improvement of two orders of magnitude was obtained by coating the gold nanoparticles with albumin with the configuration: glass/Au nanoparticles/albumin. In this case the lowest detection was at a concentration of 10(-9) M for an EF of 10(11). The albumin molecule allowed us to enhance the Raman signal because of the formation of peptide bonds (COOH-NH2) generated due to the interaction of glucose with albumin, and the appropriate separation distance between the glucose molecules and gold nanoparticles. The presence of such peptide conjugates was confirmed by FTIR spectra. Thus, our results suggest that our SERS substrates can be useful for the detection of very low concentrations of glucose, which is important for the diagnosis of diabetes in the field of medicine.
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Affiliation(s)
| | - Jorge Oliva
- Centro de Investigaciones en Óptica A.C., A.P. 1-948, León, Gto 37160, México.
| | - P Salas
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, A.P. 1-1010, Querétaro, Qro. 76000, México
| | - Elder De la Rosa
- Centro de Investigaciones en Óptica A.C., A.P. 1-948, León, Gto 37160, México.
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50
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Chattoraj S, Amin MA, Bhattacharyya K. Cytochrome c-Capped Fluorescent Gold Nanoclusters: Imaging of Live Cells and Delivery of Cytochrome c. Chemphyschem 2016; 17:2088-95. [PMID: 27028215 DOI: 10.1002/cphc.201501163] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Indexed: 01/09/2023]
Abstract
Cytochrome c-capped fluorescent gold nanoclusters (Au-NCs) are used for imaging of live lung and breast cells. Delivery of cytochrome c inside the cells is confirmed by covalently attaching a fluorophore (Alexa Fluor 594) to cytochrome c-capped Au-NCs and observing fluorescence from Alexa 594 inside the cell. Mass spectrometry studies suggest that in bulk water, addition of glutathione (GSH) to cytochrome c-capped Au-NCs results in the formation of glutathione-capped Au-NCs and free apo-cytochrome c. Thus glutathione displaces cytochrome c as a capping agent. Using confocal microscopy, the emission spectra and decay of Au-NCs are measured in live cells. From the position of the emission maximum it is shown that the Au-NCs exist as Au8 in bulk water and as Au13 inside the cells. Fluorescence resonance energy transfer from cytochrome c-Au-NC (donor) to Mitotracker Orange (acceptor) indicates that the Au-NCs localise in the mitochondria of live cells.
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Affiliation(s)
- Shyamtanu Chattoraj
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700 032, India), Fax: (91)-33-2473-2805
| | - Md Asif Amin
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700 032, India), Fax: (91)-33-2473-2805
| | - Kankan Bhattacharyya
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700 032, India), Fax: (91)-33-2473-2805.
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