1
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Wu X, Yang S, Li W, Wang J, Dular M, Tan X. Improving Microcystis aeruginosa removal efficiency through enhanced sonosensitivity of nitrogen-doped nanodiamonds. ULTRASONICS SONOCHEMISTRY 2024; 109:106993. [PMID: 39047459 PMCID: PMC11321446 DOI: 10.1016/j.ultsonch.2024.106993] [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: 05/08/2024] [Revised: 07/14/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024]
Abstract
Traditional methods for algae removal in drinking water treatment, such as coagulation and sedimentation, face challenges due to the negative charge on algae cells' surfaces, resulting in ineffective removal. Ultrasonic cavitation has shown promise in enhancing coagulation performance by disrupting extracellular polymer structures and improving cyanobacteria removal through various mechanisms like shear force and free radical reactions. However, the short lifespan and limited mass transfer distance of free radicals in conventional ultrasonic treatment lead to high energy consumption, limiting widespread application. To overcome these limitations and enhance energy efficiency, advanced carbon-based materials were developed and tested. Nitrogen-doped functional groups on nanodiamond surfaces were found to boost sonosensitivity by increasing the production of reactive oxygen species at the sonosensitizer-water interface. Utilizing low-power ultrasound (0.12 W/mL) in combination with N-ND treatment for 5 min, removal rates of Microcystis aeruginosa cells in water exceeded 90 %, with enhanced removal of algal organic matters and microcystins in water. Visualization through confocal microscopy highlighted the role of positively charged nitrogen-doped nanodiamonds in aggregating algae cells. The synergy between cell capturing and catalysis of N-ND indicates that efficient mass transfer of free radicals from the sonosensitizer's surface to the microalgae's surface is critical for promoting cyanobacteria floc formation. This study underscores the potential of employing a low-intensity ultrasound and N-ND system in effectively improving algae removal in water treatment processes.
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Affiliation(s)
- Xiaoge Wu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Su Yang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Wenshu Li
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - JuanJuan Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China.
| | - Matevž Dular
- Faculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, 1000 Ljubljana, Slovenia.
| | - Xiao Tan
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
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2
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Hempel F, Vernuccio F, König L, Buschbeck R, Rüsing M, Cerullo G, Polli D, Eng LM. Comparing transmission- and epi-BCARS: a round robin on solid-state materials. APPLIED OPTICS 2024; 63:112-121. [PMID: 38175007 DOI: 10.1364/ao.505374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 11/29/2023] [Indexed: 01/05/2024]
Abstract
Broadband coherent anti-Stokes Raman scattering (BCARS) is a powerful spectroscopy method combining high signal intensity with spectral sensitivity, enabling rapid imaging of heterogeneous samples in biomedical research and, more recently, in crystalline materials. However, BCARS encounters spectral distortion due to a setup-dependent non-resonant background (NRB). This study assesses BCARS reproducibility through a round robin experiment using two distinct BCARS setups and crystalline materials with varying structural complexity, including diamond, 6H-SiC, KDP, and KTP. The analysis compares setup-specific NRB correction procedures, detected and NRB-removed spectra, and mode assignment. We determine the influence of BCARS setup parameters like pump wavelength, pulse width, and detection geometry and provide a practical guide for optimizing BCARS setups for solid-state applications.
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3
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Leung HM, Chu HC, Mao ZW, Lo PK. Versatile nanodiamond-based tools for therapeutics and bioimaging. Chem Commun (Camb) 2023; 59:2039-2055. [PMID: 36723092 DOI: 10.1039/d2cc06495b] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nanodiamonds (NDs) are a remarkable class of carbon-based nanoparticles in nanomedicine which have recently become a hot topic of research due to their unique features including functionalization versatility, tunable opto-magnetic properties, chemical stability, minimal cytotoxicity, high affinity to biomolecules and biocompatibility. These attractive features make NDs versatile tools for a wide range of biologically relevant applications. In this feature article, we discuss the opto-magnetic properties of negatively charged nitrogen vacancy (NV-) centres in NDs as fluorescence probes. We further discuss the frequently used chemical methods for surface chemistry modification of NDs which are relevant for biomedical applications. The in vitro and in vivo biocompatibility of modified NDs is also highlighted. Subsequently, we give an overview of recent state-of-the-art biomedical applications of NDs as versatile tools for bioimaging and detection, and as targeting nanocarriers for chemotherapy, photodynamic therapy, gene therapy, antimicrobial and antiviral therapy, and bone tissue engineering. Finally, we pinpoint the main challenges for NDs in biomedical applications which lie ahead and discuss perspectives on future directions in advancing the field for practical applications and clinical translations.
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Affiliation(s)
- Hoi Man Leung
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
| | - Hoi Ching Chu
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
| | - Zheng-Wei Mao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Pik Kwan Lo
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China. .,Key Laboratory of Biochip Technology, Biotech and Health Centre, Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
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4
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Wang L, Hou Y, Zhang T, Wei X, Zhou Y, Lei D, Wei Q, Lin Y, Chu Z. All-Optical Modulation of Single Defects in Nanodiamonds: Revealing Rotational and Translational Motions in Cell Traction Force Fields. NANO LETTERS 2022; 22:7714-7723. [PMID: 35946594 DOI: 10.1021/acs.nanolett.2c02232] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Measuring the mechanical interplay between cells and their surrounding microenvironment is vital in cell biology and disease diagnosis. Most current methods can only capture the translational motion of fiduciary markers in the deformed matrix, but their rotational motions are normally ignored. Here, by utilizing single nitrogen-vacancy (NV) centers in nanodiamonds (NDs) as fluorescent markers, we propose a linear polarization modulation (LPM) method to monitor in-plane rotational and translational motions of the substrate caused by cell traction forces. Specifically, precise orientation measurement and localization with background suppression were achieved via optical polarization selective excitation of single NV centers with precisions of ∼0.5°/7.5 s and 2 nm/min, respectively. Additionally, we successfully applied this method to monitor the multidimensional movements of NDs attached to the vicinity of cell focal adhesions. The experimental results agreed well with our theoretical calculations, demonstrating the practicability of the NV-based LPM method in studying mechanobiology and cell-material interactions.
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Affiliation(s)
- Lingzhi Wang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong China
| | - Yong Hou
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong China
| | - Tongtong Zhang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong China
| | - Xi Wei
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong China
| | - Yan Zhou
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Dangyuan Lei
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong China
| | - Qiang Wei
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials and Engineering, Sichuan University, Chengdu 610065, China
| | - Yuan Lin
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong China
| | - Zhiqin Chu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong China
- Joint Appointment with School of Biomedical Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong China
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5
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郝 哲, 岳 蜀, 周 利. [Application of Raman-based technologies in the detection of urological tumors]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2022; 54:779-784. [PMID: 35950408 PMCID: PMC9385527 DOI: 10.19723/j.issn.1671-167x.2022.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Indexed: 06/15/2023]
Abstract
Urinary system tumors affect a huge number of individuals, and are frequently recurrent and progressing following surgery, necessitating lifelong surveillance. As a result, early and precise diagnosis of urinary system cancers is important for prevention and therapy. Histopathology is now the golden stan-dard for the diagnosis, but it is invasive, time-consuming, and inconvenient for initial diagnosis and re-gular follow-up assessment. Endoscopy can directly witness the tumor's structure, but intrusive detection is likely to cause harm to the patient's organs, and it is apt to create other hazards in frequently examined patients. Imaging is a valuable non-invasive and quick assessment tool; however, it can be difficult to define the type of lesions and has limited sensitivity for early tumor detection. The conventional approaches for detecting tumors have their own set of limitations. Thus, detection methods that combine non-invasive detection, label-free detection, high sensitivity and high specificity are urgently needed to aid clinical diagnosis. Optical diagnostics and imaging are increasingly being employed in healthcare settings in a variety of sectors. Raman scattering can assess changes in molecular signatures in cancer cells or tissues based on the interaction with vibrational modes of common molecular bonds. Due to the advantages of label-free, strong chemical selectivity, and high sensitivity, Raman scattering, especially coherent Raman scattering microscopy imaging with high spatial resolution, has been widely used in biomedical research. And quantity studies have shown that it has a good application in the detection and diagnosis of bladder can-cer, renal clear cell carcinoma, prostate cancer, and other cancers. In this paper, several nonlinear imaging techniques based on Raman scattering technology are briefly described, including Raman spectroscopy, coherent anti-Stokes Raman scattering, stimulated Raman scattering, and surface-enhanced Raman spectroscopy. And we will discuss the application of these techniques for detecting urologic malignancy. Future research directions are predicted using the advantages and limitations of the aforesaid methodologies in the research. For clinical practice, Raman scattering technology is intended to enable more accurate, rapid, and non-invasive in early diagnosis, intraoperative margins, and pathological grading basis for clinical practice.
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Affiliation(s)
- 哲 郝
- 北京航空航天大学生物与医学工程学院,北京市生物医学工程高精尖创新中心,生物力学与力生物学教育部重点实验室,医用光子学研究所,北京 100083School of Biological and Medical Engineering, Beihang University, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Institute of Medical Photonics, Beijing 100083, China
| | - 蜀华 岳
- 北京航空航天大学生物与医学工程学院,北京市生物医学工程高精尖创新中心,生物力学与力生物学教育部重点实验室,医用光子学研究所,北京 100083School of Biological and Medical Engineering, Beihang University, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Institute of Medical Photonics, Beijing 100083, China
| | - 利群 周
- 北京航空航天大学生物与医学工程学院,北京市生物医学工程高精尖创新中心,生物力学与力生物学教育部重点实验室,医用光子学研究所,北京 100083School of Biological and Medical Engineering, Beihang University, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Institute of Medical Photonics, Beijing 100083, China
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6
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Wang CF, El-Khoury PZ. Resonant Coherent Raman Scattering from WSe 2. J Phys Chem A 2022; 126:5832-5836. [PMID: 35976736 DOI: 10.1021/acs.jpca.2c04120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Low-dimensional transition-metal dichalcogenides (TMDs) continue to comprise a subject of intense research because of their unique optical and electronic properties that may be harnessed in modern devices. Intense photoluminescence (PL) from few-/monolayer TMDs rendered PL-based micro- and nanospectroscopic characterization ideal in the quest to understand the correlation between structure and function in these materials. Nonlinear optical methods are by comparison far less utilized for this purpose. In this work, we describe an approach based on electronically resonant four-wave-mixing that allows spatio-spectral characterization of excitons in monolayer WSe2. Due to the coherent nature of the response that we exploit to trace exciton resonances, and recent demonstrations of electronic four-wave-mixing-based nanoimaging and nanospectroscopy, our present work is an important step toward characterizing TMDs on the nano-femto scale using light.
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Affiliation(s)
- Chih-Feng Wang
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Patrick Z El-Khoury
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
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7
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Wu T, Chen X, Gong Z, Yan J, Guo J, Zhang Y, Li Y, Li B. Intracellular Thermal Probing Using Aggregated Fluorescent Nanodiamonds. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103354. [PMID: 34813176 PMCID: PMC8787390 DOI: 10.1002/advs.202103354] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/02/2021] [Indexed: 05/05/2023]
Abstract
Intracellular thermometry provides important information about the physiological activity of single cells and has been implemented using diverse temperature-sensitive materials as nanoprobes. However, measuring the temperature of specific organelles or subcellular structures is challenging because it requires precise positioning of the nanoprobes. Here, it is shown that dispersed fluorescent nanodiamonds (FNDs) endocytosed in living cells can be aggregated into microspheres using optical forces and used as intracellular temperature probes. The aggregation of the FNDs and electromagnetic resonance between individual nanodiamonds in the microspheres lead to a sevenfold intensity enhancement of 546-nm laser excitation. With the assistance of a scanning optical tweezing system, the FND microspheres can be precisely patterned and positioned within the cells. By measuring the fluorescence spectra of the microspheres, the temperatures at different locations within the cells are detected. The method provides an approach to the constructing and positioning of nanoprobes in an intracellular manner, which has potential applications in high-precision and flexible single-cell analysis.
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Affiliation(s)
- Tianli Wu
- Institute of NanophotonicsJinan UniversityGuangzhou511443China
| | - Xixi Chen
- Institute of NanophotonicsJinan UniversityGuangzhou511443China
| | - Zhiyong Gong
- Institute of NanophotonicsJinan UniversityGuangzhou511443China
| | - Jiahao Yan
- Institute of NanophotonicsJinan UniversityGuangzhou511443China
| | - Jinghui Guo
- Department of Physiology, School of MedicineJinan UniversityGuangzhou510632China
| | - Yao Zhang
- Institute of NanophotonicsJinan UniversityGuangzhou511443China
| | - Yuchao Li
- Institute of NanophotonicsJinan UniversityGuangzhou511443China
| | - Baojun Li
- Institute of NanophotonicsJinan UniversityGuangzhou511443China
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8
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Hamilton S, Regan D, Payne L, Langbein W, Borri P. Sizing individual dielectric nanoparticles with quantitative differential interference contrast microscopy. Analyst 2022; 147:1567-1580. [PMID: 35302561 DOI: 10.1039/d1an02009a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a method to measure the size of single dielectric nanoparticles with high accuracy and precision using quantitative differential interference contrast (DIC) microscopy.
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Affiliation(s)
| | - David Regan
- School of Biosciences, Cardiff University, Cardiff, UK
| | - Lukas Payne
- School of Biosciences, Cardiff University, Cardiff, UK
- School of Physics and Astronomy, Cardiff University, Cardiff, UK
| | | | - Paola Borri
- School of Biosciences, Cardiff University, Cardiff, UK
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9
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Boorman D, Pope I, Masia F, Langbein W, Hood S, Borri P, Watson P. Hyperspectral CARS microscopy and quantitative unsupervised analysis of deuterated and non-deuterated fatty acid storage in human cells. J Chem Phys 2021; 155:224202. [PMID: 34911324 DOI: 10.1063/5.0065950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Coherent anti-Stokes Raman scattering (CARS) implemented as a vibrational micro-spectroscopy modality eradicates the need for potentially perturbative fluorescent labeling while still providing high-resolution, chemically specific images of biological samples. Isotopic substitution of hydrogen atoms with deuterium introduces minimal change to molecular structures and can be coupled with CARS microscopy to increase chemical contrast. Here, we investigate HeLa cells incubated with non-deuterated or deuterium-labeled fatty acids, using an in-house-developed hyperspectral CARS microscope coupled with an unsupervised quantitative data analysis algorithm, to retrieve Raman susceptibility spectra and concentration maps of chemical components in physically meaningful units. We demonstrate that our unsupervised analysis retrieves the susceptibility spectra of the specific fatty acids, both deuterated and non-deuterated, in good agreement with reference Raman spectra measured in pure lipids. Our analysis, using the cell-silent spectral region, achieved excellent chemical specificity despite having no prior knowledge and considering the complex intracellular environment inside cells. The quantitative capabilities of the analysis allowed us to measure the concentration of deuterated and non-deuterated fatty acids stored within cytosolic lipid droplets over a 24 h period. Finally, we explored the potential use of deuterium-labeled lipid droplets for non-invasive cell tracking, demonstrating an effective application of the technique for distinguishing between cells in a mixed population over a 16 h period. These results further demonstrate the chemically specific capabilities of hyperspectral CARS microscopy to characterize and distinguish specific lipid types inside cells using an unbiased quantitative data analysis methodology.
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Affiliation(s)
- Dale Boorman
- School of Biosciences, Sir Martin Evans Building, Cardiff University, Museum Avenue, Cardiff CF10 3AX, United Kingdom
| | - Iestyn Pope
- School of Biosciences, Sir Martin Evans Building, Cardiff University, Museum Avenue, Cardiff CF10 3AX, United Kingdom
| | - Francesco Masia
- School of Biosciences, Sir Martin Evans Building, Cardiff University, Museum Avenue, Cardiff CF10 3AX, United Kingdom
| | - Wolfgang Langbein
- School of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, United Kingdom
| | - Steve Hood
- GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, United Kingdom
| | - Paola Borri
- School of Biosciences, Sir Martin Evans Building, Cardiff University, Museum Avenue, Cardiff CF10 3AX, United Kingdom
| | - Peter Watson
- School of Biosciences, Sir Martin Evans Building, Cardiff University, Museum Avenue, Cardiff CF10 3AX, United Kingdom
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10
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Žurauskas M, Alex A, Park J, Hood SR, Boppart SA. Fluorescent nanodiamonds for characterization of nonlinear microscopy systems. PHOTONICS RESEARCH 2021; 9:2309-2318. [PMID: 37181134 PMCID: PMC10174270 DOI: 10.1364/prj.434236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Characterizing the performance of fluorescence microscopy and nonlinear imaging systems is an essential step required for imaging system optimization and quality control during longitudinal experiments. Emerging multimodal nonlinear imaging techniques require a new generation of microscopy calibration targets that are not susceptible to bleaching and can provide a contrast across the multiple modalities. Here, we present a nanodiamond-based calibration target for microscopy, designed for facilitating reproducible measurements at the object plane. The target is designed to support day-to-day instrumentation development efforts in microscopy laboratories. The images of a phantom contain information about the imaging performance of a microscopy system across multiple spectral windows and modalities. Since fluorescent nanodiamonds are not prone to bleaching, the proposed imaging target can serve as a standard, shelf-stable sample to provide rapid reference measurements for ensuring consistent performance of microscopy systems in microscopy laboratories and imaging facilities.
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Affiliation(s)
- Mantas Žurauskas
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- GSK Center for Optical Molecular Imaging, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Aneesh Alex
- GSK Center for Optical Molecular Imaging, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- GlaxoSmithKline, Collegeville, Pennsylvania 19426, USA
| | - Jaena Park
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Steve R. Hood
- GSK Center for Optical Molecular Imaging, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- GlaxoSmithKline, Stevenage, Hertfordshire SG1 2NY, UK
| | - Stephen A. Boppart
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- GSK Center for Optical Molecular Imaging, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- Corresponding author:
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11
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Nahmad-Rohen A, Regan D, Masia F, McPhee C, Pope I, Langbein W, Borri P. Quantitative Label-Free Imaging of Lipid Domains in Single Bilayers by Hyperspectral Coherent Raman Scattering. Anal Chem 2020; 92:14657-14666. [PMID: 33090767 PMCID: PMC7660592 DOI: 10.1021/acs.analchem.0c03179] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lipid phase separation in cellular membranes is thought to play an important role in many biological functions. This has prompted the development of synthetic membranes to study lipid-lipid interactions in vitro, alongside optical microscopy techniques aimed at directly visualizing phase partitioning. In this context, there is a need to overcome the limitations of fluorescence microscopy, where added fluorophores can significantly perturb lipid packing. Raman-based optical imaging is a promising analytical tool for label-free chemically specific microscopy of lipid bilayers. In this work, we demonstrate the application of hyperspectral coherent Raman scattering microscopy combined with a quantitative unsupervised data analysis methodology developed in-house to visualize lipid partitioning in single planar membrane bilayers exhibiting liquid-ordered and liquid-disordered domains. Two home-built instruments were utilized, featuring coherent anti-Stokes Raman scattering and stimulated Raman scattering modalities. Ternary mixtures of dioleoylphosphatidylcholine, sphingomyelin, and cholesterol were used to form phase-separated domains. We show that domains are consistently resolved, both chemically and spatially, in a completely label-free manner. Quantitative Raman susceptibility spectra of the domains are provided alongside their spatially resolved concentration maps.
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Affiliation(s)
| | - David Regan
- School of Physics & Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, U.K
| | - Francesco Masia
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, U.K
| | - Craig McPhee
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, U.K
| | - Iestyn Pope
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, U.K
| | - Wolfgang Langbein
- School of Physics & Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, U.K
| | - Paola Borri
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, U.K
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12
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Payne LM, Albrecht W, Langbein W, Borri P. The optical nanosizer - quantitative size and shape analysis of individual nanoparticles by high-throughput widefield extinction microscopy. NANOSCALE 2020; 12:16215-16228. [PMID: 32706004 DOI: 10.1039/d0nr03504a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoparticles are widely utilised for a range of applications, from catalysis to medicine, requiring accurate knowledge of their size and shape. Current techniques for particle characterisation are either not very accurate or time consuming and expensive. Here we demonstrate a rapid and quantitative method for particle analysis based on measuring the polarisation-resolved optical extinction cross-section of hundreds of individual nanoparticles using wide-field microscopy, and determining the particle size and shape from the optical properties. We show measurements on three samples consisting of nominally spherical gold nanoparticles of 20 nm and 30 nm diameter, and gold nanorods of 30 nm length and 10 nm diameter. Nanoparticle sizes and shapes in three dimensions are deduced from the measured optical cross-sections at different wavelengths and light polarisation, by solving the inverse problem, using an ellipsoid model of the particle polarisability in the dipole limit. The sensitivity of the method depends on the experimental noise and the choice of wavelengths. We show an uncertainty down to about 1 nm in mean diameter, and 10% in aspect ratio when using two or three color channels, for a noise of about 50 nm2 in the measured cross-section. The results are in good agreement with transmission electron microscopy, both 2D projection and tomography, of the same sample batches. Owing to its combination of experimental simplicity, ease of access to statistics over many particles, accuracy, and geometrical particle characterisation in 3D, this "optical nanosizer" method has the potential to become the technique of choice for quality control in next-generation particle manufacturing.
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Affiliation(s)
- Lukas M Payne
- The Sir Martin Evans Building, School of Biosciences, Cardiff University, Cardiff, Wales, UK
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13
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Singh AK, Santra K, Song X, Petrich JW, Smith EA. Spectral Narrowing Accompanies Enhanced Spatial Resolution in Saturated Coherent Anti-Stokes Raman Scattering (CARS): Comparisons of Experiment and Theory. J Phys Chem A 2020; 124:4305-4313. [DOI: 10.1021/acs.jpca.0c02396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Avinash K. Singh
- U.S. Department of Energy, Ames Laboratory, Ames, Iowa 50011, United States
| | - Kalyan Santra
- U.S. Department of Energy, Ames Laboratory, Ames, Iowa 50011, United States
| | - Xueyu Song
- U.S. Department of Energy, Ames Laboratory, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Jacob W. Petrich
- U.S. Department of Energy, Ames Laboratory, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Emily A. Smith
- U.S. Department of Energy, Ames Laboratory, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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14
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Gao G, Guo Q, Zhi J. Nanodiamond-Based Theranostic Platform for Drug Delivery and Bioimaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902238. [PMID: 31304686 DOI: 10.1002/smll.201902238] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/31/2019] [Indexed: 06/10/2023]
Abstract
Nanodiamonds (NDs) are promising candidates for biomedical application due to their excellent biocompatibility and innate physicochemical properties. In this Concept article, nanodiamond-based theranostic platforms, which combine both drug delivery features and bioimaging functions, are discussed. The latest developments of therapeutic strategies are introduced and future perspectives for theranostic NDs are addressed.
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Affiliation(s)
- Guanyue Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qingyue Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jinfang Zhi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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15
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Regan D, Williams J, Borri P, Langbein W. Lipid Bilayer Thickness Measured by Quantitative DIC Reveals Phase Transitions and Effects of Substrate Hydrophilicity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13805-13814. [PMID: 31483674 PMCID: PMC7007255 DOI: 10.1021/acs.langmuir.9b02538] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 08/13/2019] [Indexed: 05/22/2023]
Abstract
Quantitative differential interference contrast microscopy is demonstrated here as a label-free method, which is able to image and measure the thickness of lipid bilayers with 0.1 nm precision. We investigate the influence of the substrate on the thickness of fluid-phase 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC)-supported lipid bilayers and find a thinning of up to 10%, depending on substrate hydrophilicity, local bilayer coverage, and ionic strength of the medium. With fluorescently labeled lipid bilayers, we also observe changes in the bilayer thickness depending on the choice of fluorophore. Furthermore, liquid-ordered domains in bilayers, formed from DOPC, cholesterol, and sphingomyelin, are measured, and the corresponding thickness change between the liquid-ordered and liquid-disordered phases is accurately determined. Again, the thickness difference is found to be dependent on the presence of the fluorophore label, highlighting the need for quantitative label-free techniques.
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Affiliation(s)
- David Regan
- School
of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, U.K.
- E-mail: (D.R.)
| | - Joseph Williams
- School
of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, U.K.
| | - Paola Borri
- School
of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, U.K.
| | - Wolfgang Langbein
- School
of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA, U.K.
- E-mail: (W.L.)
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16
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Meynaghizadeh-Zargar R, Salehpour F, Hamblin MR, Mahmoudi J, Sadigh-Eteghad S. Potential Application of Upconverting Nanoparticles for Brain Photobiomodulation. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2019; 37:596-605. [PMID: 31335302 DOI: 10.1089/photob.2019.4659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Brain photobiomodulation (PBM) describes the use of visible to near-infrared light for modulation or stimulation of the central nervous system in both healthy individuals and diseased conditions. Although the transcranial approach to delivering light to the head is the most common technique to stimulate the brain, delivery of light to deeper structures in the brain is still a challenge. The science of nanoparticle engineering in combination with biophotonic excitation could provide a way to overcome this problem. Upconversion is an anti-Stokes process that is capable of transforming low energy photons that penetrate tissue well to higher energy photons with a greater biological effect, but poor tissue penetration. Wavelengths in the third optical window are optimal for light penetration into brain tissue, followed by windows II, IV, and I. The combination of trivalent lanthanide ions within a crystalline host provides a nanostructure that exhibits the upconversion phenomenon. Upconverting nanoparticles (UCNPs) have been successfully used in various medical fields. Their ability to cross the brain-blood barrier and their low toxicity make them a good candidate for application in brain disorders. It is possible that delivery of UCNPs to the brainstem or deeper parts of the cerebral tissue, followed by irradiation using light wavelengths with good tissue penetration properties, could allow more efficient PBM of the brain.
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Affiliation(s)
| | - Farzad Salehpour
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,ProNeuroLIGHT LLC, Phoenix, Arizona
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts.,Department of Dermatology, Harvard Medical School, Boston, Massachusetts.,Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts
| | - Javad Mahmoudi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Sadigh-Eteghad
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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17
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Ginés L, Mandal S, Morgan DJ, Lewis R, Davies PR, Borri P, Morley GW, Williams OA. Production of Metal-Free Diamond Nanoparticles. ACS OMEGA 2018; 3:16099-16104. [PMID: 31458247 PMCID: PMC6643864 DOI: 10.1021/acsomega.8b02067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/08/2018] [Indexed: 06/01/2023]
Abstract
In this paper, the controlled production of high-quality metal-free diamond nanoparticles is demonstrated. Milling with tempered steel is shown to leave behind iron oxide contamination which is difficult to remove. Milling with SiN alleviates this issue but generates more nondiamond carbon. Thus, the choice of milling materials is critically determined by the acceptable contaminants in the ultimate application. The removal of metal impurities, present in all commercially available nanoparticles, will open new possibilities toward the production of customized diamond nanoparticles, covering the most demanding quantum applications.
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Affiliation(s)
- Laia Ginés
- School
of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24
3AA, U.K.
| | - Soumen Mandal
- School
of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24
3AA, U.K.
| | - David John Morgan
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Pl, Cardiff CF10 3AT, U.K.
| | - Ryan Lewis
- School
of Biosciences, Cardiff University, The Sir Martin Evans Building, Museum
Avenue, Cardiff CF10 3AX, U.K.
| | - Philip R. Davies
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Pl, Cardiff CF10 3AT, U.K.
| | - Paola Borri
- School
of Biosciences, Cardiff University, The Sir Martin Evans Building, Museum
Avenue, Cardiff CF10 3AX, U.K.
| | - Gavin W. Morley
- Department
of Physics, University of Warwick, Coventry CV4 7AL, U.K.
| | - Oliver A. Williams
- School
of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24
3AA, U.K.
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18
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Saarinen J, Gütter F, Lindman M, Agopov M, Fraser-Miller SJ, Scherließ R, Jokitalo E, Santos HA, Peltonen L, Isomäki A, Strachan CJ. Cell-Nanoparticle Interactions at (Sub)-Nanometer Resolution Analyzed by Electron Microscopy and Correlative Coherent Anti-Stokes Raman Scattering. Biotechnol J 2018; 14:e1800413. [PMID: 30350922 DOI: 10.1002/biot.201800413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/25/2018] [Indexed: 01/15/2023]
Abstract
A wide variety of nanoparticles are playing an increasingly important role in drug delivery. Label-free imaging techniques are especially desirable to follow the cellular uptake and intracellular fate of nanoparticles. The combined correlative use of different techniques, each with unique advantages, facilitates more detailed investigation about such interactions. The synergistic use of correlative coherent anti-Stokes Raman scattering and electron microscopy (C-CARS-EM) imaging offers label-free, chemically-specific, and (sub)-nanometer spatial resolution for studying nanoparticle uptake into cells as demonstrated in the current study. Coherent anti-Stokes Raman scattering (CARS) microscopy offers chemically-specific (sub)micron spatial resolution imaging without fluorescent labels while transmission electron microscopy (TEM) offers (sub)-nanometer scale spatial resolution and thus visualization of precise nanoparticle localization at the sub-cellular level. This proof-of-concept imaging platform with unlabeled drug nanocrystals and macrophage cells revealed good colocalization between the CARS signal and electron dense nanocrystals in TEM images. The correlative TEM images revealed subcellular localization of nanocrystals inside membrane bound vesicles, showing multivesicular body (MVB)-like morphology typical for late endosomes (LEs), endolysosomes, and phagolysosomes. C-CARS-EM imaging has much potential to study the interactions between a wide range of nanoparticles and cells with high precision and confidence.
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Affiliation(s)
- Jukka Saarinen
- Drug Research Program, Division of Pharmaceutical Chemistry and , University of Helsinki, Viikinkaari 5 E (PO Box 56), 00014 Helsinki, Finland
| | - Friederike Gütter
- Pharmaceutical Institute Department of Pharmaceutics and Biopharmaceutics, Faculty of Mathematics and Natural Sciences, Kiel University, Grasweg 9a, 24118 Kiel, Germany
| | - Mervi Lindman
- Institute of Biotechnology, Electron Microscopy Unit, University of Helsinki, Viikinkaari 9 (PO Box 56), 00014 Helsinki, Finland
| | - Mikael Agopov
- Drug Research Program, Division of Pharmaceutical Chemistry and , University of Helsinki, Viikinkaari 5 E (PO Box 56), 00014 Helsinki, Finland
| | - Sara J Fraser-Miller
- Drug Research Program, Division of Pharmaceutical Chemistry and , University of Helsinki, Viikinkaari 5 E (PO Box 56), 00014 Helsinki, Finland.,Dodd-Walls Centre, Department of Chemistry, University of Otago, PO Box 56, 9056 Dunedin, New Zealand
| | - Regina Scherließ
- Pharmaceutical Institute Department of Pharmaceutics and Biopharmaceutics, Faculty of Mathematics and Natural Sciences, Kiel University, Grasweg 9a, 24118 Kiel, Germany
| | - Eija Jokitalo
- Institute of Biotechnology, Electron Microscopy Unit, University of Helsinki, Viikinkaari 9 (PO Box 56), 00014 Helsinki, Finland
| | - Hélder A Santos
- Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Viikinkaari 5 E (PO Box 56), 00014 Helsinki, Finland
| | - Leena Peltonen
- Drug Research Program, Division of Pharmaceutical Chemistry and , University of Helsinki, Viikinkaari 5 E (PO Box 56), 00014 Helsinki, Finland
| | - Antti Isomäki
- Biomedicum Imaging Unit, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8 (PO Box 63), 00014 Helsinki, Finland
| | - Clare J Strachan
- Drug Research Program, Division of Pharmaceutical Chemistry and , University of Helsinki, Viikinkaari 5 E (PO Box 56), 00014 Helsinki, Finland
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19
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Hu F, Brucks SD, Lambert TH, Campos LM, Min W. Stimulated Raman scattering of polymer nanoparticles for multiplexed live-cell imaging. Chem Commun (Camb) 2018; 53:6187-6190. [PMID: 28474031 DOI: 10.1039/c7cc01860f] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel nanoparticle-based imaging strategy is introduced that couples biocompatible organic nanoparticles and stimulated Raman scattering (SRS) microscopy. Polymer nanoparticles with vibrational labels incorporated were readily prepared for multi-color SRS imaging with excellent photo-stability. The Raman-active polymer dots are nontoxic, rapidly enter various cell types, and are applied in multiplexed cell-type sorting.
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Affiliation(s)
- Fanghao Hu
- Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA.
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20
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Zheng T, Perona Martínez F, Storm IM, Rombouts W, Sprakel J, Schirhagl R, de Vries R. Recombinant Protein Polymers for Colloidal Stabilization and Improvement of Cellular Uptake of Diamond Nanosensors. Anal Chem 2017; 89:12812-12820. [PMID: 29111679 DOI: 10.1021/acs.analchem.7b03236] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Fluorescent nanodiamonds are gaining increasing attention as fluorescent labels in biology in view of the fact that they are essentially nontoxic, do not bleach, and can be used as nanoscale sensors for various physical and chemical properties. To fully realize the nanosensing potential of nanodiamonds in biological applications, two problems need to be addressed: their limited colloidal stability, especially in the presence of salts, and their limited ability to be taken up by cells. We show that the physical adsorption of a suitably designed recombinant polypeptide can address both the colloidal stability problem and the problem of the limited uptake of nanodiamonds by cells in a very straightforward way, while preserving both their spectroscopic properties and their excellent biocompatibility.
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Affiliation(s)
- Tingting Zheng
- Physical Chemistry and Soft Matter, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands.,Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Department of Ultrasound, Peking University Shenzhen Hospital & Biomedical Research Institute, Shenzhen-PKU-HKUST Medical Center , 518036 Shenzhen, China
| | - Felipe Perona Martínez
- Department of Biomedical Engineering, University Medical Center Groningen, Groningen University , Antonius Deusinglaan 1, 9713 AW Groningen, The Netherlands
| | - Ingeborg Maria Storm
- Physical Chemistry and Soft Matter, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Wolf Rombouts
- Physical Chemistry and Soft Matter, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Joris Sprakel
- Physical Chemistry and Soft Matter, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Romana Schirhagl
- Department of Biomedical Engineering, University Medical Center Groningen, Groningen University , Antonius Deusinglaan 1, 9713 AW Groningen, The Netherlands
| | - Renko de Vries
- Physical Chemistry and Soft Matter, Wageningen University & Research , Stippeneng 4, 6708 WE Wageningen, The Netherlands
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21
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Owyong M, Hosseini-Nassab N, Efe G, Honkala A, van den Bijgaart RJE, Plaks V, Smith BR. Cancer Immunotherapy Getting Brainy: Visualizing the Distinctive CNS Metastatic Niche to Illuminate Therapeutic Resistance. Drug Resist Updat 2017; 33-35:23-35. [PMID: 29145972 DOI: 10.1016/j.drup.2017.10.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The advent of cancer immunotherapy (CIT) and its success in treating primary and metastatic cancer may offer substantially improved outcomes for patients. Despite recent advancements, many malignancies remain resistant to CIT, among which are brain metastases, a particularly virulent disease with no apparent cure. The immunologically unique niche of the brain has prompted compelling new questions in immuno-oncology such as the effects of tissue-specific differences in immune response, heterogeneity between primary tumors and distant metastases, and the role of spatiotemporal dynamics in shaping an effective anti-tumor immune response. Current methods to examine the immunobiology of metastases in the brain are constrained by tissue processing methods that limit spatial data collection, omit dynamic information, and cannot recapitulate the heterogeneity of the tumor microenvironment. In the current review, we describe how high-resolution, live imaging tools, particularly intravital microscopy (IVM), are instrumental in answering these questions. IVM of pre-clinical cancer models enables short- and long-term observations of critical immunobiology and metastatic growth phenomena to potentially generate revolutionary insights into the spatiotemporal dynamics of brain metastasis, interactions of CIT with immune elements therein, and influence of chemo- and radiotherapy. We describe the utility of IVM to study brain metastasis in mice by tracking the migration and growth of fluorescently-labeled cells, including cancer cells and immune subsets, while monitoring the physical environment within optical windows using imaging dyes and other signal generation mechanisms to illuminate angiogenesis, hypoxia, and/or CIT drug expression within the metastatic niche. Our review summarizes the current knowledge regarding brain metastases and the immune milieu, presents the current status of CIT and its prospects in targeting brain metastases to circumvent therapeutic resistance, and proposes avenues to utilize IVM to study CIT drug delivery and therapeutic efficacy in preclinical models that will ultimately facilitate novel drug discovery and innovative combination therapies.
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Affiliation(s)
- Mark Owyong
- Department of Anatomy, University of California, San Francisco, CA 94143-0452, USA
| | | | - Gizem Efe
- Department of Anatomy, University of California, San Francisco, CA 94143-0452, USA
| | - Alexander Honkala
- Department of Radiology, Stanford University, Stanford, CA 94306, USA
| | - Renske J E van den Bijgaart
- Department of Radiation Oncology, Radiotherapy and Oncoimmunology Laboratory, Radboudumc, Geert Grooteplein Zuid 32, 6525, GA, Nijmegen, The Netherlands
| | - Vicki Plaks
- Department of Orofacial Sciences, University of California, San Francisco, CA 94143, USA.
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22
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Hemelaar SR, van der Laan KJ, Hinterding SR, Koot MV, Ellermann E, Perona-Martinez FP, Roig D, Hommelet S, Novarina D, Takahashi H, Chang M, Schirhagl R. Generally Applicable Transformation Protocols for Fluorescent Nanodiamond Internalization into Cells. Sci Rep 2017; 7:5862. [PMID: 28724919 PMCID: PMC5517665 DOI: 10.1038/s41598-017-06180-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 06/07/2017] [Indexed: 11/09/2022] Open
Abstract
Fluorescent nanodiamonds (FNDs) are promising nanoprobes, owing to their stable and magnetosensitive fluorescence. Therefore they can probe properties as magnetic resonances, pressure, temperature or strain. The unprecedented sensitivity of diamond defects can detect the faint magnetic resonance of a single electron or even a few nuclear spins. However, these sensitivities are only achieved if the diamond probe is close to the molecules that need to be detected. In order to utilize its full potential for biological applications, the diamond particle has to enter the cell. Some model systems, like HeLa cells, readily ingest particles. However, most cells do not show this behavior. In this article we show for the first time generally applicable methods, which are able to transport fluorescent nanodiamonds into cells with a thick cell wall. Yeast cells, in particular Saccharomyces cerevisiae, are a favored model organism to study intracellular processes including aging on a cellular level. In order to introduce FNDs in these cells, we evaluated electrical transformation and conditions of chemical permeabilization for uptake efficiency and viability. 5% DMSO (dimethyl sulfoxide) in combination with optimized chemical transformation mix leads to high uptake efficiency in combination with low impact on cell biology. We have evaluated all steps in the procedure.
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Affiliation(s)
- Simon R Hemelaar
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Kiran J van der Laan
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Sophie R Hinterding
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Manon V Koot
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Else Ellermann
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Felipe P Perona-Martinez
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - David Roig
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Severin Hommelet
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Daniele Novarina
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Hiroki Takahashi
- Department of Physics, ETH-Zurich, Otto Stern Weg 1, Zurich, Switzerland
| | - Michael Chang
- European Research Institute for the Biology of Ageing, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands
| | - Romana Schirhagl
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AW, Groningen, Netherlands.
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23
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Lafetá L, Cadore AR, Mendes-de-Sa TG, Watanabe K, Taniguchi T, Campos LC, Jorio A, Malard LM. Anomalous Nonlinear Optical Response of Graphene Near Phonon Resonances. NANO LETTERS 2017; 17:3447-3451. [PMID: 28541053 DOI: 10.1021/acs.nanolett.7b00329] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work we probe the third-order nonlinear optical property of graphene and hexagonal boron nitride and their heterostructure by the use of coherent anti-Stokes Raman spectroscopy. When the energy difference of the two input fields matches the phonon energy, the anti-Stokes emission intensity is enhanced in h-BN, as usually expected, while for graphene an anomalous decrease is observed. This behavior can be understood in terms of a coupling between the electronic continuum and a discrete phonon state. We have also measured a graphene/h-BN heterostructure and demonstrate that the anomalous effect in graphene dominates the heterostructure nonlinear optical response.
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Affiliation(s)
- Lucas Lafetá
- Departamento de Física, Universidade Federal de Minas Gerais , Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Alisson R Cadore
- Departamento de Física, Universidade Federal de Minas Gerais , Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Thiago G Mendes-de-Sa
- Departamento de Física, Universidade Federal de Minas Gerais , Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Kenji Watanabe
- National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba-city, Ibaraki 305-0047, Japan
| | - Takashi Taniguchi
- National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba-city, Ibaraki 305-0047, Japan
| | - Leonardo C Campos
- Departamento de Física, Universidade Federal de Minas Gerais , Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Ado Jorio
- Departamento de Física, Universidade Federal de Minas Gerais , Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Leandro M Malard
- Departamento de Física, Universidade Federal de Minas Gerais , Belo Horizonte, Minas Gerais 31270-901, Brazil
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24
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Hemelaar SR, de Boer P, Chipaux M, Zuidema W, Hamoh T, Martinez FP, Nagl A, Hoogenboom JP, Giepmans BNG, Schirhagl R. Nanodiamonds as multi-purpose labels for microscopy. Sci Rep 2017; 7:720. [PMID: 28389652 PMCID: PMC5429637 DOI: 10.1038/s41598-017-00797-2] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/13/2017] [Indexed: 11/09/2022] Open
Abstract
Nanodiamonds containing fluorescent nitrogen-vacancy centers are increasingly attracting interest for use as a probe in biological microscopy. This interest stems from (i) strong resistance to photobleaching allowing prolonged fluorescence observation times; (ii) the possibility to excite fluorescence using a focused electron beam (cathodoluminescence; CL) for high-resolution localization; and (iii) the potential use for nanoscale sensing. For all these schemes, the development of versatile molecular labeling using relatively small diamonds is essential. Here, we show the direct targeting of a biological molecule with nanodiamonds as small as 70 nm using a streptavidin conjugation and standard antibody labelling approach. We also show internalization of 40 nm sized nanodiamonds. The fluorescence from the nanodiamonds survives osmium-fixation and plastic embedding making them suited for correlative light and electron microscopy. We show that CL can be observed from epon-embedded nanodiamonds, while surface-exposed nanoparticles also stand out in secondary electron (SE) signal due to the exceptionally high diamond SE yield. Finally, we demonstrate the magnetic read-out using fluorescence from diamonds prior to embedding. Thus, our results firmly establish nanodiamonds containing nitrogen-vacancy centers as unique, versatile probes for combining and correlating different types of microscopy, from fluorescence imaging and magnetometry to ultrastructural investigation using electron microscopy.
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Affiliation(s)
- S R Hemelaar
- Groningen University, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AW, Groningen, The Netherlands
| | - P de Boer
- Groningen University, University Medical Center Groningen, Department of Cell Biology, Antonius Deusinglaan 1, 9713, AW, Groningen, The Netherlands
| | - M Chipaux
- Groningen University, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AW, Groningen, The Netherlands
| | - W Zuidema
- Delft University of Technology, Dept. Imaging Physics, Lorentzweg 1, 2628, CJ, Delft, The Netherlands
| | - T Hamoh
- Groningen University, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AW, Groningen, The Netherlands
| | - F Perona Martinez
- Groningen University, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AW, Groningen, The Netherlands
| | - A Nagl
- Groningen University, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AW, Groningen, The Netherlands
| | - J P Hoogenboom
- Delft University of Technology, Dept. Imaging Physics, Lorentzweg 1, 2628, CJ, Delft, The Netherlands
| | - B N G Giepmans
- Groningen University, University Medical Center Groningen, Department of Cell Biology, Antonius Deusinglaan 1, 9713, AW, Groningen, The Netherlands
| | - R Schirhagl
- Groningen University, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713, AW, Groningen, The Netherlands.
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25
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Motahari H, Malekfar R. Spectroscopic Investigation for Purity Evaluation of Detonation Nanodiamonds: Experimental Approach in Absorbance and Scattering. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1192-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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26
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Zou J, Pyykkö I, Hyttinen J. Inner ear barriers to nanomedicine-augmented drug delivery and imaging. J Otol 2016; 11:165-177. [PMID: 29937826 PMCID: PMC6002620 DOI: 10.1016/j.joto.2016.11.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/15/2016] [Accepted: 11/18/2016] [Indexed: 02/08/2023] Open
Abstract
There are several challenges to inner ear drug delivery and imaging due to the existence of tight biological barriers to the target structure and the dense bone surrounding it. Advances in imaging and nanomedicine may provide knowledge for overcoming the existing limitations to both the diagnosis and treatment of inner ear diseases. Novel techniques have improved the efficacy of drug delivery and targeting to the inner ear, as well as the quality and accuracy of imaging this structure. In this review, we will describe the pathways and biological barriers of the inner ear regarding drug delivery, the beneficial applications and limitations of the imaging techniques available for inner ear research, the behavior of engineered nanomaterials in inner ear applications, and future perspectives for nanomedicine-based inner ear imaging.
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Affiliation(s)
- Jing Zou
- Department of Otolaryngology – Head and Neck Surgery, Center for Otolaryngology – Head & Neck Surgery of Chinese PLA, Changhai Hospital, Second Military Medical University, Shanghai, China
- Hearing and Balance Research Unit, Field of Otolaryngology, School of Medicine, University of Tampere, Tampere, Finland
| | - Ilmari Pyykkö
- Hearing and Balance Research Unit, Field of Otolaryngology, School of Medicine, University of Tampere, Tampere, Finland
| | - Jari Hyttinen
- Department of Electronics and Communications Engineering, BioMediTech, Tampere University of Technology, Tampere, Finland
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27
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Kogermann K, Putrinš M, Tenson T. Single-cell level methods for studying the effect of antibiotics on bacteria during infection. Eur J Pharm Sci 2016; 95:2-16. [PMID: 27577009 DOI: 10.1016/j.ejps.2016.08.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 08/17/2016] [Accepted: 08/23/2016] [Indexed: 12/11/2022]
Abstract
Considerable evidence about phenotypic heterogeneity among bacteria during infection has accumulated during recent years. This heterogeneity has to be considered if the mechanisms of infection and antibiotic action are to be understood, so we need to implement existing and find novel methods to monitor the effects of antibiotics on bacteria at the single-cell level. This review provides an overview of methods by which this aim can be achieved. Fluorescence label-based methods and Raman scattering as a label-free approach are discussed in particular detail. Other label-free methods that can provide single-cell level information, such as impedance spectroscopy and surface plasmon resonance, are briefly summarized. The advantages and disadvantages of these different methods are discussed in light of a challenging in vivo environment.
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Affiliation(s)
- Karin Kogermann
- Institute of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| | - Marta Putrinš
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| | - Tanel Tenson
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
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28
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Lin YC, Wu KT, Lin ZR, Perevedentseva E, Karmenyan A, Lin MD, Cheng CL. Nanodiamond for biolabelling and toxicity evaluation in the zebrafish embryo in vivo. JOURNAL OF BIOPHOTONICS 2016; 9:827-836. [PMID: 27093912 DOI: 10.1002/jbio.201500304] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 02/27/2016] [Accepted: 03/01/2016] [Indexed: 06/05/2023]
Abstract
Nanodiamond (ND) has been proposed for various biomedical applications, including bioimaging, biosensing and drug delivery, owing to its physical-chemical properties and biocompatibility. Particularly, ND has been demonstrated as fluorescence- and Raman-detectable labels in many cellular models. Different surface functionalization methods have been developed, varying the ND's surface properties and rendering the possibility to attach biomolecules to provide interaction with biological targets. For this, toxicity is of major concern in animal models. Aside from cellular models, a cost-effective animal test will greatly facilitate the development of applications. In this study, we use the rapid, sensitive and reproducible zebrafish embryo model for in vivo nanotoxicity test. We optimize the conditions for using this animal model and analyze the zebrafish embryonic development in the presence of ND. ND is observed in the embryo in vivo using laser confocal fluorescence microscopy and fluorescence lifetime imaging. Using the zebrafish model for a safety evaluation of ND-based nanolabel is discussed.
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Affiliation(s)
- Y-C Lin
- Department of Physics, National Dong Hwa University, 1, Sec. 2 Da Hsueh Rd., Shoufeng, 97403, Hualien, Taiwan
| | - K-T Wu
- Department of Physics, National Dong Hwa University, 1, Sec. 2 Da Hsueh Rd., Shoufeng, 97403, Hualien, Taiwan
| | - Z-R Lin
- Department of Physics, National Dong Hwa University, 1, Sec. 2 Da Hsueh Rd., Shoufeng, 97403, Hualien, Taiwan
| | - E Perevedentseva
- Department of Physics, National Dong Hwa University, 1, Sec. 2 Da Hsueh Rd., Shoufeng, 97403, Hualien, Taiwan
- P. N. Lebedev Physics Institute, Russian Academy of Science, Moscow, Russia
| | - A Karmenyan
- Department of Physics, National Dong Hwa University, 1, Sec. 2 Da Hsueh Rd., Shoufeng, 97403, Hualien, Taiwan
| | - M-D Lin
- Department of Molecular Biology and Human Genetics, Tzu-Chi University, Hualien, Taiwan
| | - C-L Cheng
- Department of Physics, National Dong Hwa University, 1, Sec. 2 Da Hsueh Rd., Shoufeng, 97403, Hualien, Taiwan.
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29
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Chen X, Li D, Wang H, Jiao YY, Wang H, Yu Y, Zhi J. Fabrication of an EGF modified nanodiamonds-based anti-cancer drug targeted delivery system and drug carrier uptake visualization by 3D Raman microscopy. RSC Adv 2016. [DOI: 10.1039/c6ra04753j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We developed a nanodiamond-based anti-cancer drug targeted delivery system, epidermal growth factor–nanodiamonds–cisplatin (ENC) bioconjugate, which could selectively kill tumor cells and be located through 3D confocal Raman imaging.
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Affiliation(s)
- Xin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Dandan Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Hong Wang
- Department of Pharmaceutical Analysis
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- P. R. China
| | - Yuan-yuan Jiao
- Department of Pharmacy
- Peking University Cancer Hospital & Institute
- Beijing
- P. R. China
| | - Hao Wang
- Department of Radiation Oncology
- Peking University Third Hospital
- Beijing 100191
- P. R. China
| | - Yuan Yu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Jinfang Zhi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
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30
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Brückner L, Buckup T, Motzkus M. Enhancement of coherent anti-Stokes Raman signal via tailored probing in spectral focusing. OPTICS LETTERS 2015; 40:5204-5207. [PMID: 26565835 DOI: 10.1364/ol.40.005204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A novel approach for spectral focusing using a single-beam coherent anti-Stokes Raman scattering setup with a pulse shaper controlling the phase and amplitude is presented. By identifying the frequencies acting as the pump, Stokes, and probe, the high degree of control can be exploited in order to specifically and independently tailor the spectral region to act only as probe to achieve the highest signal intensity. While maintaining the optimal excitation of the vibrational coherence, a signal increase by a factor of six in comparison with usual spectral focusing schemes is readily obtained. The signal improvement and contrast is demonstrated on human skin tissue.
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31
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Tian Y, Kong Y, Li X, Wu J, Ko ACT, Xing M. Light- and pH-activated intracellular drug release from polymeric mesoporous silica nanoparticles. Colloids Surf B Biointerfaces 2015; 134:147-55. [DOI: 10.1016/j.colsurfb.2015.04.069] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 04/14/2015] [Accepted: 04/16/2015] [Indexed: 12/18/2022]
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32
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Darville N, Saarinen J, Isomäki A, Khriachtchev L, Cleeren D, Sterkens P, van Heerden M, Annaert P, Peltonen L, Santos HA, Strachan CJ, Van den Mooter G. Multimodal non-linear optical imaging for the investigation of drug nano-/microcrystal–cell interactions. Eur J Pharm Biopharm 2015; 96:338-48. [DOI: 10.1016/j.ejpb.2015.09.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 07/24/2015] [Accepted: 09/02/2015] [Indexed: 10/23/2022]
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33
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Payne L, Zoriniants G, Masia F, Arkill KP, Verkade P, Rowles D, Langbein W, Borri P. Optical micro-spectroscopy of single metallic nanoparticles: quantitative extinction and transient resonant four-wave mixing. Faraday Discuss 2015; 184:305-20. [PMID: 26416674 DOI: 10.1039/c5fd00079c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a wide-field imaging method to rapidly and quantitatively measure the optical extinction cross-section σ(ext) (also polarisation resolved) of a large number of individual gold nanoparticles, for statistically-relevant single particle analysis. We demonstrate a sensitivity of 5 nm(2) in σ(ext), enabling detection of single 5 nm gold nanoparticles with total acquisition times in the 1 min range. Moreover, we have developed an analytical model of the polarisation resolved σ(ext), which enabled us to extract geometrical particle aspect ratios from the measured σ(ext). Using this method, we have characterized a large number of nominally-spherical gold nanoparticles in the 10-100 nm size range. Furthermore, the method provided measurements of in-house fabricated nanoparticle conjugates, allowing distinction of individual dimers from single particles and larger aggregates. The same particle conjugates were investigated correlatively by phase-resolved transient resonant four-wave mixing micro-spectroscopy. A direct comparison of the phase-resolved response between single gold nanoparticles and dimers highlighted the promise of the four-wave mixing technique for sensing applications with dimers as plasmon rulers.
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Affiliation(s)
- Lukas Payne
- Cardiff University School of Biosciences, Museum Avenue, Cardiff CF10 3AX, United Kingdom.
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