1
|
Ghosh S, Lai JY. Recent advances in the design of intracellular pH sensing nanoprobes based on organic and inorganic materials. ENVIRONMENTAL RESEARCH 2023; 237:117089. [PMID: 37683789 DOI: 10.1016/j.envres.2023.117089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/16/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
In the biological system, the intracellular pH (pHi) plays an important role in regulating diverse physiological activities, including enzymatic action, ion transport, cell proliferation, metabolism, and programmed cell death. The monitoring of pH inside living cells is also crucial for studying cellular events such as phagocytosis, endocytosis, and receptor-ligand internalization. Furthermore, some organelles, viz., endosomes and lysosomes, have intracompartmental pH, which is critical for maintaining the stability of protein structure and function. The dysfunction and abnormal pH regulation can result in terminal diseases such as cancer, Alzheimer, and so forth. Therefore, the accuracy of intracellular pH measurement is always the top priority and demands cutting-edge research and analysis. Such techniques, such as Raman spectroscopy and fluorescence imaging, preferably use nanotechnology due to their remarkable advantages, such as a non-invasive approach and providing accuracy, repeatability, and reproducibility. In the past decades, there have been numerous attempts to design and construct non-invasive organic and inorganic materials-based nanoprobes for pHi sensing. For Raman-based techniques, metal nanostructures such as Au/Ag/Cu nanoparticles are utilized to enhance the signal intensity. As for the fluorescence-based studies, the organic-based small molecules, such as dyes, show higher sensitivity toward pH. However, they possess several drawbacks, including high photobleaching rate, and autofluorescence background signals. To this end, there are alternative nanomaterials proposed, including semiconductor quantum dots (QDs), carbon QDs, upconversion nanoparticles, and so forth. Moreover, the fluorescence technique allows for ratiometric measurement of pHi, which as a result, offers a reliable calibration curve. This timely review will critically examine the current progression in the existing nanoprobes. In addition, based on our knowledge and available research findings, we provide a brief future outlook that may advance the state-of-the-art methodologies for pHi sensing.
Collapse
Affiliation(s)
- Sandip Ghosh
- Department of Biomedical Engineering, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Jui-Yang Lai
- Department of Biomedical Engineering, Chang Gung University, Taoyuan, 33302, Taiwan; Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan, 33305, Taiwan; Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan; Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan.
| |
Collapse
|
2
|
Excitation-dependent ratiometric fluorescence response to mercury ion based on single hexagonal boron nitride quantum dots. Anal Chim Acta 2022; 1236:340585. [DOI: 10.1016/j.aca.2022.340585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/23/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022]
|
3
|
Nguyen V, Yan L, Zhao N, Van Canh N, Hang NTN, Le PH. Tuning photoluminescence of boron nitride quantum dots via surface functionalization by femtosecond laser ablation. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130922] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
4
|
Liao J, Zhou J, Song Y, Liu B, Lu J, Jin D. Optical Fingerprint Classification of Single Upconversion Nanoparticles by Deep Learning. J Phys Chem Lett 2021; 12:10242-10248. [PMID: 34647739 DOI: 10.1021/acs.jpclett.1c02923] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Highly controlled synthesis of upconversion nanoparticles (UCNPs) can be achieved in the heterogeneous design, so that a library of optical properties can be arbitrarily produced by depositing multiple lanthanide ions. Such a control offers the potential in creating nanoscale barcodes carrying high-capacity information. With the increasing creation of optical information, it poses more challenges in decoding them in an accurate, high-throughput, and speedy fashion. Here, we reported that the deep-learning approach can recognize the complexity of the optical fingerprints from different UCNPs. Under a wide-field microscope, the lifetime profiles of hundreds of single nanoparticles can be collected at once, which offers a sufficient amount of data to develop deep-learning algorithms. We demonstrated that high accuracies of over 90% can be achieved in classifying 14 kinds of UCNPs. This work suggests new opportunities in handling the diverse properties of nanoscale optical barcodes toward the establishment of vast luminescent information carriers.
Collapse
Affiliation(s)
- Jiayan Liao
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, NSW 2007, Australia
| | - Jiajia Zhou
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, NSW 2007, Australia
| | - Yiliao Song
- Australian Artificial Intelligence Institute, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Baolei Liu
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, NSW 2007, Australia
| | - Jie Lu
- Australian Artificial Intelligence Institute, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Dayong Jin
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, NSW 2007, Australia
- UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| |
Collapse
|
5
|
Abstract
Boron nitride quantum dots (BNQDs) have gained increasing attention for their versatile fluorescent, optoelectronic, chemical, and biochemical properties. During the past few years, significant progress has been demonstrated, started from theoretical modeling to actual application. Many interesting properties and applications have been reported, such as excitation-dependent emission (and, in some cases, non-excitation dependent), chemical functionalization, bioimaging, phototherapy, photocatalysis, chemical, and biological sensing. An overview of this early-stage research development of BNQDs is presented in this article. We have prepared un-bias assessments on various synthesis methods, property analysis, and applications of BNQDs here, and provided our perspective on the development of these emerging nanomaterials for years to come.
Collapse
|
6
|
Yoshida M, Chida H, Kimura F, Yamamura S, Tawa K. Multi-Color Enhanced Fluorescence Imaging of a Breast Cancer Cell with A Hole-Arrayed Plasmonic Chip. MICROMACHINES 2020; 11:E604. [PMID: 32580380 PMCID: PMC7345455 DOI: 10.3390/mi11060604] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/11/2020] [Accepted: 06/20/2020] [Indexed: 01/25/2023]
Abstract
Breast cancer cells of MDA-MB-231 express various types of membrane proteins in the cell membrane. In this study, two types of membrane proteins in MDA-MB-231 cells were observed using a plasmonic chip with an epifluorescence microscope. The targeted membrane proteins were epithelial cell adhesion molecules (EpCAMs) and epidermal growth factor receptor (EGFR), and Alexa®488-EGFR antibody and allophycocyanin (APC)-labeled EpCAM antibody were applied to the fluorescent detection. The plasmonic chip used in this study is composed of a two-dimensional hole-array structure, which is expected to enhance the fluorescence at different resonance wavelengths due to two kinds of grating pitches in a square side and a diagonal direction. As a result of multi-color imaging, the enhancement factor of Alexa®488-EGFR and APC-EpCAM was 13 ± 2 and 12 ± 2 times greater on the plasmonic chip, respectively. The excited wavelength or emission wavelength of each fluorescent agent is due to consistency with plasmon resonance wavelength in the hole-arrayed chip. The multi-color fluorescence images of breast cancer cells were improved by the hole-arrayed plasmonic chip.
Collapse
Affiliation(s)
- Makiko Yoshida
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyōgo 669-1337, Japan; (M.Y.); (H.C.)
| | - Hinako Chida
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyōgo 669-1337, Japan; (M.Y.); (H.C.)
| | - Fukiko Kimura
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan; (F.K.); (S.Y.)
| | - Shohei Yamamura
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan; (F.K.); (S.Y.)
| | - Keiko Tawa
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyōgo 669-1337, Japan; (M.Y.); (H.C.)
| |
Collapse
|
7
|
Zhang Q, Zhang X, Bao L, Wu Y, Jiang L, Zheng Y, Wang Y, Chen Y. The Application of Green-Synthesis-Derived Carbon Quantum Dots to Bioimaging and the Analysis of Mercury(II). JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2019; 2019:8183134. [PMID: 31886024 PMCID: PMC6915022 DOI: 10.1155/2019/8183134] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/03/2019] [Accepted: 10/31/2019] [Indexed: 05/08/2023]
Abstract
Ginkgo leaves were used as precursors for the hydrothermal synthesis of carbon quantum dots (CQDs), which were subsequently characterized by transmission electron microscopy as well as Fourier-transform infrared, X-ray powder diffraction, and X-ray photoelectron spectroscopy. The prepared CQDs exhibited a fluorescence quantum yield of 11% and superior water solubility and fluorescence stability, as well as low cytotoxicities and excellent biocompatibilities with A549 and HeLa cells; these CQDs were also used to bioimage HeLa cells. Moreover, owing to the experimental observation that Hg2+ quenches the fluorescence of the CQDs in a specific and sensitive manner, we developed a method for the detection of Hg2+ using this fluorescence sensor. The sensor exhibited a linear range for Hg2+ of 0.50-20 μM, with an excellent coefficient of determination (R 2 = 0.9966) and limit of detection (12.4 nM). In practice, the proposed method was shown to be highly selective and sensitive for the monitoring of Hg2+ in lake water and serum samples.
Collapse
Affiliation(s)
- Qianchun Zhang
- Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, School of Biology and Chemistry, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Xiaolan Zhang
- Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, School of Biology and Chemistry, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Linchun Bao
- Clinical Laboratory, Qian Xi Nan People's Hospital, Xingyi 562400, China
| | - Yun Wu
- Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, School of Biology and Chemistry, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Li Jiang
- Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, School of Biology and Chemistry, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Yuguo Zheng
- Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, School of Biology and Chemistry, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Yuan Wang
- Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, School of Biology and Chemistry, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Yafei Chen
- Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, School of Biology and Chemistry, Xingyi Normal University for Nationalities, Xingyi 562400, China
| |
Collapse
|
8
|
Stagi L, Ren J, Innocenzi P. From 2-D to 0-D Boron Nitride Materials, The Next Challenge. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3905. [PMID: 31779207 PMCID: PMC6926581 DOI: 10.3390/ma12233905] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/18/2019] [Accepted: 11/22/2019] [Indexed: 12/04/2022]
Abstract
The discovery of graphene has paved the way for intense research into 2D materials which is expected to have a tremendous impact on our knowledge of material properties in small dimensions. Among other materials, boron nitride (BN) nanomaterials have shown remarkable features with the possibility of being used in a large variety of devices. Photonics, aerospace, and medicine are just some of the possible fields where BN has been successfully employed. Poor scalability represents, however, a primary limit of boron nitride. Techniques to limit the number of defects, obtaining large area sheets and the production of significant amounts of homogenous 2D materials are still at an early stage. In most cases, the synthesis process governs defect formation. It is of utmost importance, therefore, to achieve a deep understanding of the mechanism behind the creation of these defects. We reviewed some of the most recent studies on 2D and 0D boron nitride materials. Starting with the theoretical works which describe the correlations between structure and defects, we critically described the main BN synthesis routes and the properties of the final materials. The main results are summarized to present a general outlook on the current state of the art in this field.
Collapse
Affiliation(s)
| | | | - Plinio Innocenzi
- Laboratorio di Scienza dei Materiali e Nanotecnologie, CR-INSTM, Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, 07100 Sassari, Italy; (L.S.); (J.R.)
| |
Collapse
|
9
|
Ardekani SM, Dehghani A, Ye P, Nguyen KA, Gomes VG. Conjugated carbon quantum dots: Potent nano-antibiotic for intracellular pathogens. J Colloid Interface Sci 2019; 552:378-387. [DOI: 10.1016/j.jcis.2019.05.067] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/14/2019] [Accepted: 05/20/2019] [Indexed: 12/25/2022]
|