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Abstract
The photodimerization of 4-aminothiophenol (PATP) into 4,4'-dimercaptobenzene (DMAB) has been extensively utilized as a paradigm reaction to probe the role of surface plasmons in nanoparticle-mediated light-driven processes. Here I report the first observation of the PATP-to-DMAB photoreaction in the absence of any plasmonic mediators. The reaction was observed to occur with different kinetics either for PATP adsorbed on non-plasmonic nanoparticles (TiO2 , ZnO, SiO2 ) or deposited as macroscopic droplets. Confocal microRaman spectroscopy enabled to investigate the reaction progress in different plasmon-free contexts, either aerobic or anaerobic, suggesting a new interpretation of the photodimerization process, based on direct laser-induced activation of singlet oxygen species. These results provide new insights in light-driven redox processes, elucidating the role of sample morphology, light and oxygen.
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Affiliation(s)
- Ivano Alessandri
- Sustainable Chemistry and Materials GroupDepartment of Information EngineeringUniversity of BresciaItaly
- INSTMConsorzio Nazionale per la Scienza e Tecnologia dei MaterialiRU Bresciavia Branze 3825123BresciaItaly
- INO-CNRRU Bresciavia Branze 4325123BresciaItaly
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2
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Li D, Aubertin K, Onidas D, Nizard P, Félidj N, Gazeau F, Mangeney C, Luo Y. Recent advances in non-plasmonic surface-enhanced Raman spectroscopy nanostructures for biomedical applications. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 14:e1795. [PMID: 35362261 DOI: 10.1002/wnan.1795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is an emerging powerful vibrational technique offering unprecedented opportunities in biomedical science for the sensitive detection of biomarkers and the imaging and tracking of biological samples. Conventional SERS detection is based on the use of plasmonic substrates (e.g., Au and Ag nanostructures), which exhibit very high enhancement factors (EF = 1010 -1011 ) but suffers from serious limitations, including light-induced local heating effect due to ohmic loss and expensive price. These drawbacks may limit detection accuracy and large-scaled practical applications. In this review, we focus on alternative approaches based on plasmon-free SERS detection on low-cost nanostructures, such as carbons, oxides, chalcogenides, polymers, silicons, and so forth. The mechanism of non-plasmonic SERS detection has been attributed to interfacial charge transfer between the substrate and the adsorbed molecules, with no photothermal side-effects but usually less EF compared with plasmonic nanostructures. The strategies to improve Raman signal detection, through the tailoring of substrate composition, structure, and surface chemistry, is reviewed and discussed. The biomedical applications, for example, SERS cell characterization, biosensing, and bioimaging are also presented, highlighting the importance of substrate surface functionalization to achieve sensitive, accurate analysis, and excellent biocompatibility. This article is categorized under: Diagnostic Tools > Diagnostic Nanodevices Diagnostic Tools > Biosensing Diagnostic Tools > In Vivo Nanodiagnostics and Imaging.
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Affiliation(s)
- Da Li
- LCBPT, CNRS UMR 8601, Université Paris Cité, 45, rue des Saints-Pères, Paris, France
| | - Kelly Aubertin
- MSC, CNRS UMR 7057, Université Paris Cité, 45, rue des Saints-Pères, Paris, France
| | - Delphine Onidas
- LCBPT, CNRS UMR 8601, Université Paris Cité, 45, rue des Saints-Pères, Paris, France
| | - Philippe Nizard
- LCBPT, CNRS UMR 8601, Université Paris Cité, 45, rue des Saints-Pères, Paris, France
| | - Nordin Félidj
- ITODYS, CNRS UMR 7086, Université Paris Cité, 15, rue Jean Antoine de Baïf, Paris, France
| | - Florence Gazeau
- MSC, CNRS UMR 7057, Université Paris Cité, 45, rue des Saints-Pères, Paris, France
| | - Claire Mangeney
- LCBPT, CNRS UMR 8601, Université Paris Cité, 45, rue des Saints-Pères, Paris, France
| | - Yun Luo
- LCBPT, CNRS UMR 8601, Université Paris Cité, 45, rue des Saints-Pères, Paris, France
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3
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Affiliation(s)
- Ivano Alessandri
- Sustainable Chemistry and Materials Group Department of Information Engineering University of Brescia Italy
- INSTM Consorzio Nazionale per la Scienza e Tecnologia dei Materiali RU Brescia via Branze 38 25123 Brescia Italy
- INO-CNR RU Brescia via Branze 43 25123 Brescia Italy
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4
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Song G, Cong S, Zhao Z. Defect engineering in semiconductor-based SERS. Chem Sci 2022; 13:1210-1224. [PMID: 35222907 PMCID: PMC8809400 DOI: 10.1039/d1sc05940h] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/01/2021] [Indexed: 12/11/2022] Open
Abstract
Semiconductor-based surface enhanced Raman spectroscopy (SERS) platforms take advantage of the multifaceted tunability of semiconductor materials to realize specialized sensing demands in a wide range of applications. However, until quite recently, semiconductor-based SERS materials have generally exhibited low activity compared to conventional noble metal substrates, with enhancement factors (EF) typically reaching 103, confining the study of semiconductor-based SERS to purely academic settings. In recent years, defect engineering has been proposed to effectively improve the SERS activity of semiconductor materials. Defective semiconductors can now achieve noble-metal-comparable SERS enhancement and exceedingly low, nano-molar detection concentrations towards certain molecules. The reason for such success is that defect engineering effectively harnesses the complex enhancement mechanisms behind the SERS phenomenon by purposefully tailoring many physicochemical parameters of semiconductors. In this perspective, we introduce the main defect engineering approaches used in SERS-activation, and discuss in depth the electromagnetic and chemical enhancement mechanisms (EM and CM, respectively) that are influenced by these defect engineering methods. We also introduce the applications that have been reported for defective semiconductor-based SERS platforms. With this perspective we aim to meet the imperative demand for a summary on the recent developments of SERS material design based on defect engineering of semiconductors, and highlight the attractive research and application prospects for semiconductor-based SERS.
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Affiliation(s)
- Ge Song
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 China
- Key Lab of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
| | - Shan Cong
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 China
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Chinese Academy of Sciences (CAS) Suzhou 215123 China
- Gusu Laboratory of Materials Suzhou 215123 China
| | - Zhigang Zhao
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China Hefei 230026 China
- Key Lab of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences Suzhou 215123 China
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Chinese Academy of Sciences (CAS) Suzhou 215123 China
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5
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Xu Y, Zhang D, Lin J, Wu X, Xu X, Akakuru OU, Zhang H, Zhang Z, Xie Y, Wu A, Shao G. Ultrahigh SERS Activity of TiO2@Ag Nanostructure leveraged for Accurately Detecting CTCs in peripheral blood. Biomater Sci 2022; 10:1812-1820. [PMID: 35234756 DOI: 10.1039/d1bm01821c] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Circulating tumor cells (CTCs) usually shed from primary and metastatic tumors serve as an important tumor marker, and easily cause fatal distant metastasis in cancer patients. Accurately and effectively detecting...
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Affiliation(s)
- Yanping Xu
- Second clinical college, Zhejiang Chinese Medical University, Hang Zhou 310053, China
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Dinghu Zhang
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Jie Lin
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Xiaoxia Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Xiawei Xu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Ozioma Udochukwu Akakuru
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Hao Zhang
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Zhewei Zhang
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Yujiao Xie
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 ZhongGuan West Road, Ningbo 315201, China.
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, P.R. China
| | - Guoliang Shao
- Department of Interventional Radiology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China.
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6
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Vassalini I, Bontempi N, Federici S, Ferroni M, Gianoncelli A, Alessandri I. Cyclodextrins enable indirect ultrasensitive Raman detection of polychlorinated biphenyls captured by plasmonic bubbles. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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7
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Paolini L, Federici S, Consoli G, Arceri D, Radeghieri A, Alessandri I, Bergese P. Fourier-transform Infrared (FT-IR) spectroscopy fingerprints subpopulations of extracellular vesicles of different sizes and cellular origin. J Extracell Vesicles 2020; 9:1741174. [PMID: 32341767 PMCID: PMC7170381 DOI: 10.1080/20013078.2020.1741174] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 02/20/2020] [Accepted: 02/28/2020] [Indexed: 12/13/2022] Open
Abstract
Identification of extracellular vesicle (EV) subpopulations remains an open challenge. To date, the common strategy is based on searching and probing set of molecular components and physical properties intended to be univocally characteristics of the target subpopulation. Pitfalls include the risk to opt for an unsuitable marker set - which may either not represent the subpopulation or also cover other unintended subpopulations - and the need to use different characterization techniques and equipment. This approach focused on specific markers may result inadequate to routinely deal with EV subpopulations that have an intrinsic high level of heterogeneity. In this paper, we show that Fourier-transform Infrared (FT-IR) spectroscopy can provide a collective fingerprint of EV subpopulations in one single experiment. FT-IR measurements were performed on large (LEVs, ~600 nm), medium (MEVs, ~200 nm) and small (SEVs ~60 nm) EVs enriched from two different cell lines medium: murine prostate cancer (TRAMP-C2) and skin melanoma (B16). Spectral regions between 3100-2800 cm-1 and 1880-900 cm-1, corresponding to functional groups mainly ascribed to lipid and protein contributions, were acquired and processed by Principal Component Analysis (PCA). LEVs, MEVs and SEVs were separately grouped for both the considered cell lines. Moreover, subpopulations of the same size but from different sources were assigned (with different degrees of accuracy) to two different groups. These findings demonstrate that FT-IR has the potential to quickly fingerprint EV subpopulations as a whole, suggesting an appealing complement/alternative for their characterization and grading, extendable to healthy and pathological EVs and fully artificial nanovesicles.
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Affiliation(s)
- Lucia Paolini
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Consorzio Sistemi a Grande Interfase (CSGI), Department of Chemistry, University of Florence, Sesto Fiorentino (FI), Italy
| | - Stefania Federici
- Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Florence, Italy
| | - Giovanni Consoli
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Diletta Arceri
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Annalisa Radeghieri
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Consorzio Sistemi a Grande Interfase (CSGI), Department of Chemistry, University of Florence, Sesto Fiorentino (FI), Italy
| | - Ivano Alessandri
- Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Florence, Italy
- Department of Information Engineering, University of Brescia, Brescia, Italy
- National Institute of Optics, National Research Council of Italy (CNR-INO), Unit of Brescia, Italy
| | - Paolo Bergese
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Consorzio Sistemi a Grande Interfase (CSGI), Department of Chemistry, University of Florence, Sesto Fiorentino (FI), Italy
- Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Florence, Italy
- Institute for Biomedical Research and Innovation, National Research Council of Italy, Palermo, Italy
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8
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Wang X, Guo L. SERS Activity of Semiconductors: Crystalline and Amorphous Nanomaterials. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913375] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiaotian Wang
- School of ChemistryKey Laboratory of Bio-Inspired Smart Interfacial Science and TechnologyMinistry of EducationBeijing Advanced Innovation Center for Biomedical EngineeringBeihang University 100191 Beijing P. R. China
| | - Lin Guo
- School of ChemistryKey Laboratory of Bio-Inspired Smart Interfacial Science and TechnologyMinistry of EducationBeijing Advanced Innovation Center for Biomedical EngineeringBeihang University 100191 Beijing P. R. China
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9
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Wang X, Guo L. SERS Activity of Semiconductors: Crystalline and Amorphous Nanomaterials. Angew Chem Int Ed Engl 2019; 59:4231-4239. [PMID: 31733023 DOI: 10.1002/anie.201913375] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Indexed: 11/06/2022]
Abstract
Surface-enhanced Raman scattering (SERS) spectroscopy on semiconductors has attracted increasing attention due to its high spectral reproducibility and unique selectively to target molecules. Recently, endeavors have been made in fabricating novel SERS-active semiconductor substrates and exploring new enhancement mechanisms to improve the sensitivity of semiconductor substrates. This Minireview explains the enhancement mechanism of the semiconductor SERS effect in a brief tutorial and summarize recent developments of novel semiconductor substrates, in particular with regard to the remarkable SERS activity of amorphous semiconductor nanomaterials. Potential applications of semiconductor SERS are also a key issue of concern. We discuss a variety of promising applications of semiconductor SERS in the fields of in situ analytical chemistry, spectroelectrochemical analysis, biological sensing, and trace detection.
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Affiliation(s)
- Xiaotian Wang
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, 100191, Beijing, P. R. China
| | - Lin Guo
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, 100191, Beijing, P. R. China
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10
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Mitsai E, Kuchmizhak A, Pustovalov E, Sergeev A, Mironenko A, Bratskaya S, Linklater DP, Balčytis A, Ivanova E, Juodkazis S. Chemically non-perturbing SERS detection of a catalytic reaction with black silicon. NANOSCALE 2018; 10:9780-9787. [PMID: 29767209 DOI: 10.1039/c8nr02123f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
All-dielectric resonant micro- and nano-structures made of high-index dielectrics have recently emerged as a promising surface-enhanced Raman scattering (SERS) platform which can complement or potentially replace the metal-based counterparts in routine sensing measurements. These unique structures combine the highly-tunable optical response and high field enhancement with the non-invasiveness, i.e. chemically non-perturbing the analyte, simple chemical modification and recyclability. Meanwhile, commercially competitive fabrication technologies for mass production of such structures are still missing. Here, we attest a chemically inert black silicon (b-Si) substrate consisting of randomly-arranged spiky Mie resonators for a true non-invasive (chemically non-perturbing) SERS identification of the molecular fingerprints at low concentrations. Based on the comparative in situ SERS tracking of the para-aminothiophenol (PATP)-to-4,4'-dimercaptoazobenzene (DMAB) catalytic conversion on the bare and metal-coated b-Si, we justify the applicability of the metal-free b-Si for ultra-sensitive non-invasive SERS detection at a concentration level as low as 10-6 M. We performed supporting finite-difference time-domain (FDTD) calculations to reveal the electromagnetic enhancement provided by an isolated spiky Si resonator in the visible spectral range. Additional comparative SERS studies of the PATP-to-DMAB conversion performed with a chemically active bare black copper oxide (b-CuO) substrate as well as SERS detection of the slow daylight-driven PATP-to-DMAB catalytic conversion in the aqueous methanol solution loaded with colloidal silver nanoparticles (Ag NPs) confirm the non-invasive SERS performance of the all-dielectric crystalline b-Si substrate. A proposed SERS substrate can be fabricated using the easy-to-implement scalable technology of plasma etching amenable on substrate areas over 10 × 10 cm2 making such inexpensive all-dielectric substrates promising for routine SERS applications, where the non-invasiveness is of high importance.
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Affiliation(s)
- E Mitsai
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041, Russia.
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11
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Bontempi N, Vassalini I, Danesi S, Ferroni M, Donarelli M, Colombi P, Alessandri I. Non-Plasmonic SERS with Silicon: Is It Really Safe? New Insights into the Optothermal Properties of Core/Shell Microbeads. J Phys Chem Lett 2018; 9:2127-2132. [PMID: 29601206 DOI: 10.1021/acs.jpclett.8b00662] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Silicon is one of the most interesting candidates for plasmon-free surface-enhaced Raman scattering (SERS), because of its high-refractive index and thermal stability. However, here we demonstrate that the alleged thermal stability of silicon nanoshells irradiated by conventional Raman laser cannot be taken for granted. We investigated the opto-thermal behavior of SiO2/Si core/shell microbeads (Si-rex) irradiated with three common Raman laser sources (λ = 532, 633, 785 nm) under real working conditions. We obtained an experimental proof of the critical role played by bead size and aggregation in heat and light management, demonstrating that, in the case of strong opto-thermal coupling, the temperature can exceed that of the melting points of both core and shell components. In addition, we also show that weakly coupled beads can be utilized as stable substrates for plasmon-free SERS experiments.
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Affiliation(s)
- Nicolò Bontempi
- INSTM-UdR Brescia , via Branze 38 , 25123 Brescia , Italy
- INO-CNR , via Branze 38 , 25123 Brescia , Italy
| | - Irene Vassalini
- INSTM-UdR Brescia , via Branze 38 , 25123 Brescia , Italy
- Department of Mechanical and Industrial Engineering , University of Brescia , via Branze 38 , 25123 Brescia , Italy
| | - Stefano Danesi
- INSTM-UdR Brescia , via Branze 38 , 25123 Brescia , Italy
- Department of Mechanical and Industrial Engineering , University of Brescia , via Branze 38 , 25123 Brescia , Italy
| | - Matteo Ferroni
- Department of Information Engineering , University of Brescia , via Branze 38 , 25123 Brescia , Italy
- INO-CNR , via Branze 38 , 25123 Brescia , Italy
| | - Maurizio Donarelli
- Department of Information Engineering , University of Brescia , via Branze 38 , 25123 Brescia , Italy
| | | | - Ivano Alessandri
- INSTM-UdR Brescia , via Branze 38 , 25123 Brescia , Italy
- Department of Information Engineering , University of Brescia , via Branze 38 , 25123 Brescia , Italy
- INO-CNR , via Branze 38 , 25123 Brescia , Italy
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12
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Effects of nitrogen doping on surface-enhanced Raman scattering (SERS) performance of bicrystalline TiO 2 nanofibres. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2017.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Danesi S, Gandolfi M, Carletti L, Bontempi N, De Angelis C, Banfi F, Alessandri I. Photo-induced heat generation in non-plasmonic nanoantennas. Phys Chem Chem Phys 2018; 20:15307-15315. [DOI: 10.1039/c8cp01919c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The photo-induced heat generation in SiO2/Si core/shell nanoantennas is analysed on the basis of their optothermal properties.
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Affiliation(s)
- Stefano Danesi
- INSTM-UdR Brescia
- 2513 Brescia
- Italy
- Department of Mechanical and Industrial Engineering
- 2513 Brescia
| | - Marco Gandolfi
- Interdisciplinary Laboratories for Advanced Materials Physics (I-LAMP)
- 25121 Brescia
- Italy
- Dipartimento di Matematica e Fisica
- Università Cattolica del Sacro Cuore
| | - Luca Carletti
- Department of Information Engineering
- University of Brescia
- 2513 Brescia
- Italy
| | | | | | - Francesco Banfi
- Interdisciplinary Laboratories for Advanced Materials Physics (I-LAMP)
- 25121 Brescia
- Italy
- Dipartimento di Matematica e Fisica
- Università Cattolica del Sacro Cuore
| | - Ivano Alessandri
- INSTM-UdR Brescia
- 2513 Brescia
- Italy
- Department of Information Engineering
- University of Brescia
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14
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Bontempi N, Vassalini I, Danesi S, Alessandri I. ZORRO: zirconium oxide resonators for all-in-one Raman and whispering-gallery-mode optical sensing. Chem Commun (Camb) 2017; 53:10382-10385. [PMID: 28875183 DOI: 10.1039/c7cc06357a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report the observation of whispering-gallery modes in 2 μm-sized SiO2/ZrO2 core/shell beads utilized as all-dielectric Raman enhancers. This allows us to achieve simultaneous optical and Raman ultrasensitive detection with a single spectral analysis. This opportunity opens exciting perspectives for the multimodal chemical sensing and fabrication of optical fiber devices.
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Affiliation(s)
- N Bontempi
- INSTM and Chemistry for Technologies Laboratory, Mechanical and Industrial Engineering Department, University of Brescia, via Branze 38, 25123 Brescia, Italy.
| | - I Vassalini
- INSTM and Chemistry for Technologies Laboratory, Mechanical and Industrial Engineering Department, University of Brescia, via Branze 38, 25123 Brescia, Italy.
| | - S Danesi
- INSTM and Chemistry for Technologies Laboratory, Mechanical and Industrial Engineering Department, University of Brescia, via Branze 38, 25123 Brescia, Italy.
| | - I Alessandri
- INSTM and Chemistry for Technologies Laboratory, Mechanical and Industrial Engineering Department, University of Brescia, via Branze 38, 25123 Brescia, Italy.
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15
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Bontempi N, Biavardi E, Bordiga D, Candiani G, Alessandri I, Bergese P, Dalcanale E. Probing lysine mono-methylation in histone H3 tail peptides with an abiotic receptor coupled to a non-plasmonic resonator. NANOSCALE 2017; 9:8639-8646. [PMID: 28608884 DOI: 10.1039/c7nr02491f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Binder and effector molecules that allow studying and manipulating epigenetic processes are of biological relevance and pose severe technical challenges. We report the first example of a synthetic receptor able to recognize mono-methylated lysines in a histone H3 tail peptide, which has relevant functions in epigenetic regulation. Recognition is robust and specific regardless of the position and the number of mono-methylated lysines along the polypeptide chain. The peptide is first captured in solution by a tetraphosphonate cavitand (Tiiii) that selectively binds its Lys-NMe+ moieties. Separation from solution and detection of the peptide-Tiiii complexes is then enabled in one single step by an all dielectric SiO2-TiO2 core-shell resonator (T-rex), which captures the complex and operates fully reproducible signal transduction by non-plasmonic surface enhanced Raman scattering (SERS) without degrading the complex. The realized abiotic probe is able to distinguish multiple mono-methylated peptides from the single mono-methylated ones.
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Affiliation(s)
- N Bontempi
- Department of Mechanical and Industrial Engineering, Chemistry for Technologies Laboratory, University of Brescia and INSTM UdR Brescia, Via Branze 38, 25123 Brescia, Italy.
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16
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Han XX, Ji W, Zhao B, Ozaki Y. Semiconductor-enhanced Raman scattering: active nanomaterials and applications. NANOSCALE 2017; 9:4847-4861. [PMID: 28150834 DOI: 10.1039/c6nr08693d] [Citation(s) in RCA: 160] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Surface-enhanced Raman scattering (SERS)-active nanomaterials have extended from noble metals and transition metals to semiconductor materials, since the first discovery of SERS in the mid-1970s. In comparison with metal substrates and transition metals, semiconductor materials have additional optical and electrical properties besides SERS enhancement ability, which enable them to display remarkable charge-transfer enhancement and catalytic ability. Moreover, their superior biocompatibility allows these nanomaterials to have great potential applications in bioscience. Herein we highlight the fast growing research field focusing on SERS-active semiconductor nanomaterials and semiconductor-other material heterostructures developed in our group as well as in other related research studies. The material size, morphology and assembly-dependent SERS enhancement have been discussed in detail. Furthermore, a variety of promising applications of semiconductor-enhanced Raman scattering in photoelectric characterization, redox biochemistry, sensing, and the catalytic degradation of organic pollutants are introduced.
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Affiliation(s)
- Xiao Xia Han
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Street, Changchun 130012, P.R. China.
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17
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Xu X, Zhou S, Long J, Wu T, Fan Z. The Synthesis of a Core-Shell Photocatalyst Material YF₃:Ho 3+@TiO₂ and Investigation of Its Photocatalytic Properties. MATERIALS 2017; 10:ma10030302. [PMID: 28772662 PMCID: PMC5503396 DOI: 10.3390/ma10030302] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 02/17/2017] [Accepted: 02/21/2017] [Indexed: 11/16/2022]
Abstract
In this paper, YF3:Ho3+@TiO2 core-shell nanomaterials were prepared by hydrolysis of tetra-n-butyl titanate (TBOT) using polyvinylpyrrolidone K-30 (PVP) as the coupling agent. Characterization methods including X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS) under TEM, X-ray photoelectron spectroscopy (XPS), fluorescence spectrometry, ultraviolet-visible diffuse reflectance spectroscopy, and electron spin resonance (ESR) were used to characterize the properties and working mechanism of the prepared photocatalyst material. They indicated that the core phase YF3 nanoparticles were successfully coated with a TiO2 shell and the length of the composite was roughly 100 nm. The Ho3+ single-doped YF3:Ho3+@TiO2 displayed strong visible absorption peaks with wavelengths of 450, 537, and 644 nm, respectively. By selecting these three peaks as excitation wavelengths, we could observe 288 nm (5D4→5I8) ultraviolet emission, which confirmed that there was indeed an energy transfer from YF3:Ho3+ to anatase TiO2. In addition, this paper investigated the influences of different TBOT dosages on photocatalysis performance of the as-prepared photocatalyst material. Results showed that the YF3:Ho3+@TiO2 core-shell nanomaterial was an advanced visible-light-driven catalyst, which decomposed approximately 67% of rhodamine b (RhB) and 34.6% of phenol after 10 h of photocatalysis reaction. Compared with the blank experiment, the photocatalysis efficiency was significantly improved. Finally, the visible-light-responsive photocatalytic mechanism of YF3:Ho3+@TiO2 core-shell materials and the influencing factors of photocatalytic degradation were investigated to study the apparent kinetics, which provides a theoretical basis for improving the structural design and functions of this new type of catalytic material.
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Affiliation(s)
- Xuan Xu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
- National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing 400045, China.
| | - Shiyu Zhou
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
- National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing 400045, China.
| | - Jun Long
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
- National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing 400045, China.
| | - Tianhu Wu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
- National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing 400045, China.
| | - Zihong Fan
- College of Environmental and Resources, Chongqing Technology and Business University, Chongqing 400067, China.
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18
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Lin J, Shang Y, Li X, Yu J, Wang X, Guo L. Ultrasensitive SERS Detection by Defect Engineering on Single Cu 2 O Superstructure Particle. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604797. [PMID: 27892634 DOI: 10.1002/adma.201604797] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 10/18/2016] [Indexed: 05/27/2023]
Abstract
A Cu2 O superstructure is constructed through a recrystallization-induced self-assembly strategy. Single Cu2 O superstructure particle exhibits an outstanding surface-enhanced Raman spectroscopy performance with the limit of detection as low as 10-9 mol L-1 and metal comparable enhancement factor (8 × 105 ) due to the synergetic effect of vacancies defect-facilitated charge-transfer process and copper vacancies defect-induced electrostatic adsorption.
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Affiliation(s)
- Jie Lin
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Yang Shang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
- Key Laboratory of Micro-Nano Measurement-Manipulation and Physics, Ministry of Education, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Xiaoxia Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Jian Yu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Xiaotian Wang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Lin Guo
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China
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19
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Lee S, Lee J, Nam K, Shin WG, Sohn Y. Application of Ni-Oxide@TiO₂ Core-Shell Structures to Photocatalytic Mixed Dye Degradation, CO Oxidation, and Supercapacitors. MATERIALS 2016; 9:ma9121024. [PMID: 28774145 PMCID: PMC5456972 DOI: 10.3390/ma9121024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/20/2016] [Accepted: 12/16/2016] [Indexed: 01/13/2023]
Abstract
Performing diverse application tests on synthesized metal oxides is critical for identifying suitable application areas based on the material performances. In the present study, Ni-oxide@TiO2 core-shell materials were synthesized and applied to photocatalytic mixed dye (methyl orange + rhodamine + methylene blue) degradation under ultraviolet (UV) and visible lights, CO oxidation, and supercapacitors. Their physicochemical properties were examined by field-emission scanning electron microscopy, X-ray diffraction analysis, Fourier-transform infrared spectroscopy, and UV-visible absorption spectroscopy. It was shown that their performances were highly dependent on the morphology, thermal treatment procedure, and TiO2 overlayer coating.
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Affiliation(s)
- Seungwon Lee
- Department of Chemistry, Yeugnam University, Gyeongsan 38541, Korea.
| | - Jisuk Lee
- Department of Chemistry, Yeugnam University, Gyeongsan 38541, Korea.
| | - Kyusuk Nam
- Department of Chemistry, Yeugnam University, Gyeongsan 38541, Korea.
| | - Weon Gyu Shin
- Department of Mechanical Engineering, Chungnam National University, Daejeon 34134, Korea.
| | - Youngku Sohn
- Department of Chemistry, Yeugnam University, Gyeongsan 38541, Korea.
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20
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Affiliation(s)
- Ivano Alessandri
- INSTM
and Chemistry for Technologies Laboratory, University of Brescia, Brescia 25123, Italy
| | - John R. Lombardi
- Department
of Chemistry, The City College of New York, New York 10031, United States
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21
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"RaMassays": Synergistic Enhancement of Plasmon-Free Raman Scattering and Mass Spectrometry for Multimodal Analysis of Small Molecules. Sci Rep 2016; 6:34521. [PMID: 27698368 PMCID: PMC5048303 DOI: 10.1038/srep34521] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 09/15/2016] [Indexed: 11/08/2022] Open
Abstract
SiO2/TiO2 core/shell (T-rex) beads were exploited as "all-in-one" building-block materials to create analytical assays that combine plasmon-free surface enhanced Raman scattering (SERS) and surface assisted laser desorption/ionization (SALDI) mass spectrometry (RaMassays). Such a multi-modal approach relies on the unique optical properties of T-rex beads, which are able to harvest and manage light in both UV and Vis range, making ionization and Raman scattering more efficient. RaMassays were successfully applied to the detection of small (molecular weight, M.W. <400 Da) molecules with a key relevance in biochemistry and pharmaceutical analysis. Caffeine and cocaine were utilized as molecular probes to test the combined SERS/SALDI response of RaMassays, showing excellent sensitivity and reproducibility. The differentiation between amphetamine/ephedrine and theophylline/theobromine couples demonstrated the synergistic reciprocal reinforcement of SERS and SALDI. Finally, the conversion of L-tyrosine in L-DOPA was utilized to probe RaMassays as analytical tools for characterizing reaction intermediates without introducing any spurious effects. RaMassays exhibit important advantages over plasmonic nanoparticles in terms of reproducibility, absence of interference and potential integration in multiplexed devices.
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22
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Tan X, Melkersson J, Wu S, Wang L, Zhang J. Noble-Metal-Free Materials for Surface-Enhanced Raman Spectroscopy Detection. Chemphyschem 2016; 17:2630-9. [DOI: 10.1002/cphc.201600286] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Xianjun Tan
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road 130 200237 Shanghai China
| | - Jenny Melkersson
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road 130 200237 Shanghai China
| | - Shiqun Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road 130 200237 Shanghai China
| | - Lingzhi Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road 130 200237 Shanghai China
| | - Jinlong Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; Meilong Road 130 200237 Shanghai China
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23
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Alessandri I, Biavardi E, Gianoncelli A, Bergese P, Dalcanale E. Cavitands Endow All-Dielectric Beads With Selectivity for Plasmon-Free Enhanced Raman Detection of Nε-Methylated Lysine. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14944-14951. [PMID: 26571376 DOI: 10.1021/acsami.5b08190] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
SiO2/TiO2 microbeads (T-rex) are promising materials for plasmon-free surface-enhanced Raman scattering (SERS), offering several key advantages in biodiagnostics. In this paper we report the combination of T-rex beads with tetraphosphonate cavitands (Tiiii), which imparts selectivity toward Nε-methylated lysine. SERS experiments demonstrated the efficiency and selectivity of the T-rex-Tiiii assays in detecting methylated lysine hydrochloride (Nε-Me-Lys-Fmoc) from aqueous solutions, even in the presence of the parent Lys-Fmoc hydrochloride as interferent. The negative results obtained in control experiments using TSiiii ruled out any other form of surface recognition or preferential physisorption. MALDI-TOF analyses on the beads exposed to Nε-Me-Lys-Fmoc revealed the presence of the Tiiii•Nε-Me-Lys-Fmoc complex. Raman analyses based on the intensity ratio of Nε-Me-Lys-Fmoc and cavitand-specific modes resulted in a dose-response plot, which allowed for estimating the concentration of Nε-methylated lysine from initial solutions in the 1 × 10(-3) to 1 × 10(-5) M range. These results can set the basis for the development of new Raman assays for epigenetic diagnostics.
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Affiliation(s)
- Ivano Alessandri
- INSTM and Chemistry for Technologies Laboratory, University of Brescia , via Branze 38, 25123 Brescia, Italy
| | - Elisa Biavardi
- Department of Chemistry and INSTM Ru, University of Parma , Parco area delle Scienze 17/A, 43124 Parma, Italy
| | - Alessandra Gianoncelli
- INSTM and Department of Molecular and Translational Medicine, University of Brescia , Viale Europa 11, 25123 Brescia, Italy
| | - Paolo Bergese
- INSTM and Department of Molecular and Translational Medicine, University of Brescia , Viale Europa 11, 25123 Brescia, Italy
| | - Enrico Dalcanale
- Department of Chemistry and INSTM Ru, University of Parma , Parco area delle Scienze 17/A, 43124 Parma, Italy
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24
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Bontempi N, Carletti L, De Angelis C, Alessandri I. Plasmon-free SERS detection of environmental CO2 on TiO2 surfaces. NANOSCALE 2016; 8:3226-3231. [PMID: 26791593 DOI: 10.1039/c5nr08380j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
SiO2/TiO2 core/shell beads (T-rex) were designed, fabricated and tested for Raman detection of environmental CO2 under real-working conditions, as those encountered, for example, in solar-to-fuel conversion reactions. The exploitation of light trapping and morphology dependent resonances was crucial for extending the limit of detection of CO2 adsorbed on TiO2 surfaces. T-rex beads allowed for achieving surface enhanced Raman scattering (SERS) without using plasmonic metals showing high-efficiency, fast response and reproducibility in CO2 detection in both air and solvents. The dependence of SERS activity on Mie-type resonances was investigated through a systematic comparison of experimental data and numerical simulations, demonstrating that T-rex beads can be tailored for the detection of gaseous environmental pollutants on the basis of simple, Mie-scattering based calculations. Three-dimensional T-rex colloidal crystals were also successfully tested in precise, in situ, real time detection of CO2 as a function of different temperature-sweep cycles.
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Affiliation(s)
- Nicolò Bontempi
- INSTM and Chemistry for Technologies Laboratory, Mechanical and Industrial Engineering Department, University of Brescia, via Branze 38, 25123 Brescia, Italy.
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25
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Ji W, Song W, Tanabe I, Wang Y, Zhao B, Ozaki Y. Semiconductor-enhanced Raman scattering for highly robust SERS sensing: the case of phosphate analysis. Chem Commun (Camb) 2016; 51:7641-4. [PMID: 25845423 DOI: 10.1039/c5cc02395e] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Quantitative analysis of phosphate anions was achieved by measurement of "turn-off" SERS based on the first-layer effect of a chemical mechanism. More importantly, our results demonstrate that it is possible, by means of semiconductor-enhanced Raman scattering, to enhance the SERS sensing performance including stability and reproducibility.
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Affiliation(s)
- Wei Ji
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan.
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26
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Maiolo D, Del Pino P, Metrangolo P, Parak WJ, Baldelli Bombelli F. Nanomedicine delivery: does protein corona route to the target or off road? Nanomedicine (Lond) 2015; 10:3231-47. [PMID: 26470748 DOI: 10.2217/nnm.15.163] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Nanomedicine aims to find novel solutions for urgent biomedical needs. Despite this, one of the most challenging hurdles that nanomedicine faces is to successfully target therapeutic nanoparticles to cells of interest in vivo. As for any biomaterials, once in vivo, nanoparticles can interact with plasma biomolecules, forming new entities for which the name protein coronas (PCs) have been coined. The PC can influence the in vivo biological fate of a nanoparticle. Thus for guaranteeing the desired function of an engineered nanomaterial in vivo, it is crucial to dissect its PC in terms of formation and evolution within the body. In this contribution we will review the 'good' and 'bad' sides of the PC, starting from the scientific aspects to the technological applications.
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Affiliation(s)
- Daniele Maiolo
- Fondazione Centro Europeo Nanomedicina c/o Laboratory of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry, Materials, & Chemical Engineering 'Giulio Natta', Politecnico di Milano, Milan, Italy
| | - Pablo Del Pino
- CIC Biomagune, San Sebastian, Spain.,Fachbereich Physik, Philipps Universität Marburg, Marburg, Germany
| | - Pierangelo Metrangolo
- Fondazione Centro Europeo Nanomedicina c/o Laboratory of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry, Materials, & Chemical Engineering 'Giulio Natta', Politecnico di Milano, Milan, Italy.,VTT-Technical Research Centre of Finland, FI-02044 VTT, Espoo, Finland
| | - Wolfgang J Parak
- CIC Biomagune, San Sebastian, Spain.,Fachbereich Physik, Philipps Universität Marburg, Marburg, Germany
| | - Francesca Baldelli Bombelli
- Fondazione Centro Europeo Nanomedicina c/o Laboratory of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry, Materials, & Chemical Engineering 'Giulio Natta', Politecnico di Milano, Milan, Italy
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27
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Vassalini I, Rotunno E, Lazzarini L, Alessandri I. "Stainless" Gold Nanorods: Preserving Shape, Optical Properties, and SERS Activity in Oxidative Environment. ACS APPLIED MATERIALS & INTERFACES 2015; 7:18794-18802. [PMID: 26259045 DOI: 10.1021/acsami.5b07175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
One of the main limitations to the application of gold nanorods (Au NRs) as surface-enhanced Raman scattering (SERS) probes for in situ monitoring of chemical processes is their instability in oxidative environments. Oxidation induces progressive anisotropic shortening of the NRs, which are eventually dissolved once this process has been completed. This paper compares two types of Au NRs, obtained through different routes and characterized by similar aspect ratios but different sizes. The key factors influencing the resistance of Au NRs to oxidation were systematically investigated, showing that the reduction of free bromide species and the increase of the particle size allowed the NRs to maintain their stability under harsh environments for several weeks. The most stable Au NRs were also demonstrated to be highly efficient SERS substrates in a series of Raman experiments involving molecular probes, treated under either oxidizing or nonoxidizing conditions, which simulate the oxidation of organic pollutants in water. These hallmarks make these "stainless" Au NRs attractive tools for ultrasensitive diagnostic under real working conditions.
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Affiliation(s)
- Irene Vassalini
- INSTM and Chemistry for Technologies Laboratory, Mechanical and Industrial Department, University of Brescia , Via Branze 38, 25123 Brescia, Italy
| | - Enzo Rotunno
- IMEM-CNR , Parco Area delle Scienze 37/A, 43124 Parma, Italy
| | - Laura Lazzarini
- IMEM-CNR , Parco Area delle Scienze 37/A, 43124 Parma, Italy
| | - Ivano Alessandri
- INSTM and Chemistry for Technologies Laboratory, Mechanical and Industrial Department, University of Brescia , Via Branze 38, 25123 Brescia, Italy
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28
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Bontempi N, Salmistraro M, Ferroni M, Depero LE, Alessandri I. Probing the spatial extension of light trapping-induced enhanced Raman scattering in high-density Si nanowire arrays. NANOTECHNOLOGY 2014; 25:465705. [PMID: 25360576 DOI: 10.1088/0957-4484/25/46/465705] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This paper reports an experimental investigation of surface-enhanced Raman scattering in high-density Si nanowire arrays obtained by electroless etching. A direct relationship between light trapping capabilities of Si nanowires and enhanced Raman scattering was demonstrated. Optimized arrays allowed for a remarkable increase of Raman sensitivity in comparison to reference planar samples. As a result, the detection limit of molecular probes under resonant excitation (e.g. methylene blue) can be extended by three orders of magnitude. In addition, continuous ultrathin films, that cannot be analyzed in conventional Raman experiments, are made detectable. In the case of anatase thin films, the detection limit of 5 nm was reached. Raman spectra of Si/TiO₂ core/shell heterostructures demonstrate that the enhanced field resulting from surface multiple scattering is characterized by a large spatial extension (about fifty nanometers), making these materials a potential alternative to plasmonic metals for SERS experiments.
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Affiliation(s)
- Nicolò Bontempi
- INSTM and Chemistry for Technologies Laboratory, University of Brescia, via Branze 38, I-25123 Brescia, Italy
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29
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Stetciura IY, Markin AV, Bratashov DN, Sukhorukov GB, Gorin DA. Nanoencapsulated and microencapsulated SERS platforms for biomedical analysis. Curr Opin Pharmacol 2014; 18:149-58. [DOI: 10.1016/j.coph.2014.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/20/2014] [Accepted: 10/04/2014] [Indexed: 11/24/2022]
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30
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Alessandri I, Bontempi N, Depero LE. Colloidal lenses as universal Raman scattering enhancers. RSC Adv 2014. [DOI: 10.1039/c4ra07198k] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Colloidal lenses can be easily implemented into conventional microspectroscopy experiments as universal, disposable Raman scattering enhancers.
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Affiliation(s)
- I. Alessandri
- INSTM and Chemistry for Technologies Lab
- University of Brescia
- 25123 Brescia, Italy
| | - N. Bontempi
- INSTM and Chemistry for Technologies Lab
- University of Brescia
- 25123 Brescia, Italy
| | - L. E. Depero
- INSTM and Chemistry for Technologies Lab
- University of Brescia
- 25123 Brescia, Italy
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