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Yang C, Zhao Y, Jiang S, Sun X, Wang X, Wang Z, Wu Y, Wu J, Li Y. A breakthrough in phytochemical profiling: ultra-sensitive surface-enhanced Raman spectroscopy platform for detecting bioactive components in medicinal and edible plants. Mikrochim Acta 2024; 191:286. [PMID: 38652378 DOI: 10.1007/s00604-024-06360-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 04/08/2024] [Indexed: 04/25/2024]
Abstract
A perennial challenge in harnessing the rich biological activity of medicinal and edible plants is the accurate identification and sensitive detection of their active compounds. In this study, an innovative, ultra-sensitive detection platform for plant chemical profiling is created using surface-enhanced Raman spectroscopy (SERS) technology. The platform uses silver nanoparticles as the enhancing substrate, excess sodium borohydride prevents substrate oxidation, and methanol enables the tested molecules to be better adsorbed onto the silver nanoparticles. Subsequently, nanoparticle aggregation to form stable "hot spots" is induced by Ca2+, and the Raman signal of the target molecule is strongly enhanced. At the same time, deuterated methanol was used as the internal standard for quantitative determination. The method has excellent reproducibility, RSD ≤ 1.79%, and the enhancement factor of this method for the detection of active ingredients in the medicinal plant Coptis chinensis was 1.24 × 109, with detection limits as low as 3 fM. The platform successfully compared the alkaloid distribution in different parts of Coptis chinensis: root > leaf > stem, and the difference in content between different batches of Coptis chinensis decoction was successfully evaluated. The analytical technology adopted by the platform can speed up the determination of Coptis chinensis and reduce the cost of analysis, not only making better use of these valuable resources but also promoting development and innovation in the food and pharmaceutical industries. This study provides a new method for the development, evaluation, and comprehensive utilization of both medicinal and edible plants. It is expected that this method will be extended to the modern rapid detection of other medicinal and edible plants and will provide technical support for the vigorous development of the medicinal and edible plants industry.
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Affiliation(s)
- Chunjuan Yang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Yue Zhao
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Shuang Jiang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Xiaomeng Sun
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Xiaotong Wang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Zhibin Wang
- Key Laboratory of Chinese Materia Medical (Ministry of Education), Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, 150040, China
| | - Yanli Wu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
- Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Jing Wu
- School of Science, Nantong University, No. 9, Seyuan Road, Nantong, Jiangsu, 226019, China
| | - Yang Li
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China.
- Research Center for Innovative Technology of Pharmaceutical Analysis, College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, China.
- Research Unit of Health Sciences and Technology (HST), Faculty of Medicine University of Oulu, Oulu, Finland.
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Elhassan MM, Glasco DL, Sheelam A, Mahmoud AM, Hegazy MA, Mowaka S, Bell JG. Potentiometric detection of apomorphine in human plasma using a 3D printed sensor. Biosens Bioelectron 2024; 248:115971. [PMID: 38154328 DOI: 10.1016/j.bios.2023.115971] [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: 11/01/2023] [Revised: 12/09/2023] [Accepted: 12/22/2023] [Indexed: 12/30/2023]
Abstract
Apomorphine is a dopamine agonist that is used for the management of Parkinson's disease and has been proven to effectively decrease the off-time duration, where the symptoms recur, in Parkinson's disease patients. This paper describes the design and fabrication of the first potentiometric sensor for the determination of apomorphine in bulk and human plasma samples. The fabrication protocol involves stereolithographic 3D printing, which is a unique tool for the rapid fabrication of low-cost sensors. The solid-contact apomorphine ion-selective electrode combines a carbon-mesh/thermoplastic composite as the ion-to-electron transducer and a 3D printed ion-selective membrane, doped with the ionophore calix[6]arene. The sensor selectively measures apomorphine in the presence of other biologically present cations - sodium, potassium, magnesium, and calcium - as well as the commonly prescribed Parkinson's pharmaceutical, levodopa (L-Dopa). The sensor demonstrated a linear, Nernstian response, with a slope of 58.8 mV/decade over the range of 5.0 mM-9.8 μM, which covers the biologically (and pharmaceutically) relevant ranges, with a limit of detection of 2.51 μM. Moreover, the apomorphine sensor exhibited good stability (minimal drift of just 188 μV/hour over 10 h) and a shelf-life of almost 4 weeks. Experiments performed in the presence of albumin, the main plasma protein to which apomorphine binds, demonstrate that the sensor responds selectively to free-apomorphine (i.e., not bound or complexed forms). The utility of the sensor was confirmed through the successful determination of apomorphine in spiked human plasma samples.
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Affiliation(s)
- Manar M Elhassan
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA; Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, 11837, Egypt
| | - Dalton L Glasco
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA
| | - Anjaiah Sheelam
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA
| | - Amr M Mahmoud
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini, Cairo, 11562, Egypt
| | - Maha A Hegazy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini, Cairo, 11562, Egypt.
| | - Shereen Mowaka
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, 11837, Egypt; Analytical Chemistry Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, Egypt
| | - Jeffrey G Bell
- Department of Chemistry, Washington State University, Pullman, WA, 99163, USA.
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Macrelli A, Villa NS, Lucotti A, Dellasega D, Ossi PM, Tommasini M. Sensing the Anti-Epileptic Drug Perampanel with Paper-Based Spinning SERS Substrates. Molecules 2021; 27:molecules27010030. [PMID: 35011263 PMCID: PMC8746616 DOI: 10.3390/molecules27010030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/13/2021] [Accepted: 12/18/2021] [Indexed: 11/16/2022] Open
Abstract
The applications of SERS in therapeutic drug monitoring, or other fields of analytical chemistry, require the availability of sensitive sensors and experimental approaches that can be implemented in affordable ways. In this contribution, we show the production of cost-effective SERS sensors obtained by depositing Lee-Meisel Ag colloids on filter paper either by natural sedimentation or centrifugation. We have characterized the morphological and plasmonic features of the sensors by optical microscopy, SEM, and UV-Vis spectroscopy. Such sensors can be used to quantify by SERS the anti-epileptic drug Perampanel (in the concentration range 1 × 10−4–5 × 10−6 M) by spinning them during the micro-Raman measurements on the top of a custom device obtained from spare part hard disk drives. This approach minimizes laser-induced heating effects and allows averaging over the spatial non-uniformity of the sensor.
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Affiliation(s)
- Andrea Macrelli
- Department of Energy, Politecnico di Milano, 20133 Milan, Italy; (A.M.); (D.D.); (P.M.O.)
| | - Nicolò Simone Villa
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 20133 Milan, Italy; (N.S.V.); (A.L.)
| | - Andrea Lucotti
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 20133 Milan, Italy; (N.S.V.); (A.L.)
| | - David Dellasega
- Department of Energy, Politecnico di Milano, 20133 Milan, Italy; (A.M.); (D.D.); (P.M.O.)
| | - Paolo Maria Ossi
- Department of Energy, Politecnico di Milano, 20133 Milan, Italy; (A.M.); (D.D.); (P.M.O.)
| | - Matteo Tommasini
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 20133 Milan, Italy; (N.S.V.); (A.L.)
- Correspondence: ; Tel.: +39-02-2399-3384
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Amendola V. Correlation of surface-enhanced Raman scattering (SERS) with the surface density of gold nanoparticles: evaluation of the critical number of SERS tags for a detectable signal. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1016-1023. [PMID: 31165028 PMCID: PMC6541332 DOI: 10.3762/bjnano.10.102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 05/03/2019] [Indexed: 05/26/2023]
Abstract
The use of plasmonic nanotags based on the surface-enhanced Raman scattering (SERS) effect is highly promising for several applications in analytical chemistry, biotechnological assays and nanomedicine. To this end, a crucial parameter is the minimum number of SERS tags that allows for the collection of intense Raman signals under real operating conditions. Here, SERS Au nanotags (AuNTs) based on clustered gold nanoparticles are deposited on a substrate and analyzed in the same region using Raman spectroscopy and transmission electron microscopy. In this way, the Raman spectra and the surface density of the SERS tags are correlated directly, showing that 1 tag/µm2 is enough to generate an intense signal above the noise level at 633 nm with an excitation power of only 0.65 mW and an acquisition time of just 1 s with a 50× objective. The AuNT density can be even lower than 1 tag/µm2 when the acquisition time is extended to 10 s, but must be increased to 3 tags/µm2 when a 20× objective is employed under the same excitation conditions. In addition, in order to observe a linear response, it was found that 10 SERS AuNTs inside the probed area are required. These findings indicate that a better signal-to-noise ratio requires high-magnification optics, while linearity versus tag number can be improved by using low-magnification optics or a high tag density. In general the suitability of plasmonic SERS labels for ultrasensitive analytical and biomedical applications is evident.
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Affiliation(s)
- Vincenzo Amendola
- Department of Chemical Sciences, University of Padova, Padova, Italy
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Zanchi C, Lucotti A, Cancogni D, Fontana F, Trusso S, Ossi PM, Tommasini M. Functionalization of nanostructured gold substrates with chiral chromophores for SERS applications: The case of 5-Aza[5]helicene. Chirality 2018; 30:875-882. [PMID: 29852522 DOI: 10.1002/chir.22970] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 03/20/2018] [Accepted: 04/10/2018] [Indexed: 12/30/2022]
Abstract
Nanostructured gold thin films can be fabricated by controlled pulsed laser deposition to get efficient sensors, with uniform morphology and optimized plasmon resonance, to be employed as plasmonic substrates in surface enhanced Raman scattering spectroscopy. By attaching 5-aza[5]helicen-6-yl-6-hexanethiol to such gold nanostructures, used in a previous work for label-free drug sensing with biomedical purposes, we successfully prepared functionalized substrates with remarkable surface enhanced Raman scattering activity. The long-term motivation is to develop probes for drug detection at low concentrations, where sensitivity to specific chiral targets is required.
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Affiliation(s)
- Chiara Zanchi
- Dip. di Energia, Politecnico di Milano, Milan, Italy.,Dip. di Chimica Materiali e Ing. Chimica, Politecnico di Milano, Milan, Italy
| | - Andrea Lucotti
- Dip. di Chimica Materiali e Ing. Chimica, Politecnico di Milano, Milan, Italy
| | - Damiano Cancogni
- Dip. di Ingegneria e Scienze Applicate, Università di Bergamo, Dalmine, Italy
| | - Francesca Fontana
- Dip. di Ingegneria e Scienze Applicate, Università di Bergamo, Dalmine, Italy.,INSTM Bergamo R.U, Dalmine, Italy
| | | | - Paolo M Ossi
- Dip. di Energia, Politecnico di Milano, Milan, Italy
| | - Matteo Tommasini
- Dip. di Chimica Materiali e Ing. Chimica, Politecnico di Milano, Milan, Italy
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