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Yu CH, Au-Yeung KC, Liu R, Lee CH, Jiang D, Semagne Aweke B, Wu CH, Wang YJ, Wang TH, Voon Kong K, Yap GPA, Chen WC, Frenking G, Zhao L, Ong TG. Diversification of the Carbodicarbene Class by Embedding an Anionic Component in its Scaffold. Chemistry 2023; 29:e202302886. [PMID: 37730960 DOI: 10.1002/chem.202302886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/19/2023] [Accepted: 09/19/2023] [Indexed: 09/22/2023]
Abstract
Carbodicarbene (CDC) has become an emerging ligand in many fields due to its strong σ-donating ability.
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Affiliation(s)
- Cheng-Han Yu
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
| | - Ka-Chun Au-Yeung
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Corporate R&D Center, LCY Chemical Corporation, Kaohsiung, Taiwan (R.O.C
| | - Ruiqin Liu
- School of Chemistry and Molecular Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
| | - Chao-Hsien Lee
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
| | - Dandan Jiang
- School of Chemistry and Molecular Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
| | - Bamlaku Semagne Aweke
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan (R.O.C
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan (R.O.C
| | - Chia-Hung Wu
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Department of Chemistry, National Taiwan University, Taipei, Taiwan (R.O.C
| | - Yu-Jou Wang
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Department of Chemistry, National Taiwan University, Taipei, Taiwan (R.O.C
| | - Ting-Hsuan Wang
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan (R.O.C
| | - Glenn P A Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware, United States
| | - Wen-Ching Chen
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
| | - Gernot Frenking
- School of Chemistry and Molecular Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35043, Marburg, Germany
| | - Lili Zhao
- School of Chemistry and Molecular Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
| | - Tiow-Gan Ong
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Department of Chemistry, National Taiwan University, Taipei, Taiwan (R.O.C
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan (R.O.C
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2
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Shuyun W, Lin F, Pan C, Zhang Q, Tao H, Fan M, Xu L, Kong KV, Chen Y, Lin D, Feng S. Laser tweezer Raman spectroscopy combined with deep neural networks for identification of liver cancer cells. Talanta 2023; 264:124753. [PMID: 37290333 DOI: 10.1016/j.talanta.2023.124753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/25/2023] [Accepted: 05/28/2023] [Indexed: 06/10/2023]
Abstract
Rapid identification of cancer cells is crucial for clinical treatment guidance. Laser tweezer Raman spectroscopy (LTRS) that provides biochemical characteristics of cells can be used to identify cell phenotypes through classification models in a non-invasive and label-free manner. However, traditional classification methods require extensive reference databases and clinical experience, which is challenging when sampling at inaccessible locations. Here, we describe a classification method combing LTRS with deep neural network (DNN) for differential and discriminative analysis of multiple liver cancer (LC) cells. By using LTRS, we obtained high-quality single-cell Raman spectra of normal hepatocytes (HL-7702) and liver cancer cell lines (SMMC-7721, Hep3B, HepG2, SK-Hep1 and Huh7). The tentative assignment of Raman peaks indicated that arginine content was elevated and phenylalanine, glutathione and glutamate content was decreased in liver cancer cells. Subsequently, we randomly selected 300 spectra from each cell line for DNN model analysis, achieving a mean accuracy of 99.2%, a mean sensitivity of 99.2% and a mean specificity of 99.8% for the identification and classification of multiple LC cells and hepatocyte cells. These results demonstrate the combination of LTRS and DNN is a promising method for rapid and accurate cancer cell identification at single cell level.
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Affiliation(s)
- Weng Shuyun
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Fengjie Lin
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital Fuzhou, Fuzhou, 3500014, China
| | - Changbin Pan
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Qiyi Zhang
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Hong Tao
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Min Fan
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Luyun Xu
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Yuanmei Chen
- Department of Radiation Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital Fuzhou, Fuzhou, 3500014, China
| | - Duo Lin
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China.
| | - Shangyuan Feng
- Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian, 350117, China.
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Wu CY, Chen HJ, Wu YC, Tsai SW, Liu YH, Bhattacharya U, Lin D, Tai HC, Kong KV. Highly Efficient Singlet Oxygen Generation by BODIPY-Ruthenium(II) Complexes for Promoting Neurite Outgrowth and Suppressing Tau Protein Aggregation. Inorg Chem 2023; 62:1102-1112. [PMID: 36622931 DOI: 10.1021/acs.inorgchem.2c03017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Singlet oxygen (1O2) has been recently identified as a key molecule against toxic Aβ aggregation, which is associated with the currently incurable Alzheimer's disease (AD). However, limited research has studied its efficiency against tau protein aggregation, the other major hallmark of AD. Herein, we designed and synthesized boron-dipyrromethene (BODIPY)-ruthenium conjugates and isolated three isomers. Under visible-light irradiation, the ε isomer can be photoactivated and efficiently generate singlet oxygen. Particularly, the complex demonstrated successful results in attenuating tauopathy─an appreciable decrease to 43 ± 2% at 100 nM. The photosensitizer was further found to remarkably promote neurite outgrowth and significantly increased the length and number of neurites in nerve cells. As a result of effective photoinduced singlet oxygen generation and proactive neurite outgrowth, the hybrid design has great potential for therapeutics for Alzheimer's disease.
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Affiliation(s)
- Cheng-Yun Wu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Hsin-Jou Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yun-Chin Wu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Shu-Wei Tsai
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Hung Liu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | | | - Duo Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Digital Fujian Internet-of-Things Laboratory of Environment Monitoring, Fujian Normal University, Fuzhou 350007, China
| | - Hwan-Ching Tai
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Department of Laboratory Medicine, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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4
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Amira Solehah Pungut N, Hoe Tan C, Mat Saad H, Shin Sim K, Yin Xing Tiong S, Wei Ang C, Hau Gan C, Voon Kong K, Wai Tan K. A new cinnamaldehyde-rhodamine based dual chemosensor for Cu2+ and Fe3+ and its applicability in live cell imaging. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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5
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Jiang L, Kong KV, He S, Yong K. Plasmonic Biosensing with Nano‐Engineered Van der Waals Interfaces. Chempluschem 2022; 87:e202200221. [DOI: 10.1002/cplu.202200221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/27/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Li Jiang
- School of Electrical and Electronic Engineering Nanyang Technological University 639798 Singapore Singapore
- State Key Laboratory of Modern Optical Instrumentation Centre for Optical and Electromagnetics Research JORCEP (Sino-Swedish Joint Research Center of Photonics) Zhejiang University Hangzhou 310058 P. R. China
- CINTRA CNRS/NTU/THALES, UMI 3288 Research Techno Plaza 50 Nanyang Drive Border X Block 637553 Singapore Singapore
| | - Kien Voon Kong
- Department of Chemistry National Taiwan University Taipei City Taiwan 10617
| | - Sailing He
- State Key Laboratory of Modern Optical Instrumentation Centre for Optical and Electromagnetics Research JORCEP (Sino-Swedish Joint Research Center of Photonics) Zhejiang University Hangzhou 310058 P. R. China
| | - Ken‐Tye Yong
- School of Biomedical Engineering The University of Sydney Sydney New South Wales 2006 Australia
- The University of Sydney Nano Institute The University of Sydney Sydney New South Wales 2006 Australia
- The Biophotonics and MechanoBioengineering Lab The University of Sydney Sydney New South Wales 2006 Australia
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6
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Wang T, Zhu Y, Weng S, Lin X, Kong KV, Weng Y, Jia X, Chen R, Lin D, Feng S. Optical biosensor based on SERS with signal calibration function for quantitative detection of carcinoembryonic antigen. Biomed Opt Express 2022; 13:5962-5970. [PMID: 36733726 PMCID: PMC9872900 DOI: 10.1364/boe.474273] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/30/2022] [Accepted: 10/09/2022] [Indexed: 06/18/2023]
Abstract
Monitoring the levels of cancer biomarkers is essential for cancer diagnosis and evaluation. In this study, a novel sandwich type sensing platform based on surface-enhanced Raman scattering (SERS) technology was developed for the detection of carcinoembryonic antigen (CEA), with a limit of detection (LOD) of 0.258 ng/mL. In order to achieve sensitive detection of CEA in complex samples, gold nanoparticle monolayer modified with CEA antibodies and with aptamer-functionalized probes was fabricated to target CEA. Two gold layers were integrated into the SERS platform, which greatly enhanced the signal of the probe by generating tremendous "hot spots". Meanwhile, the intensity ratio of Raman probes and the second-order peak of the silicon wafer was used to achieve dynamic calibration of the Raman probe signal. Excitingly, this sensing platform was capable of distinguishing cancer patients from healthy individuals via CEA concentrations in blood samples with the accuracy of 100%. This sandwich structure SERS sensing platform presented promising potential to be an alternative tool for clinical biomarker detection in the field of cancer diagnosis.
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Affiliation(s)
- Tingyin Wang
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
- These authors contributed equally to this work
| | - Youzhi Zhu
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
- These authors contributed equally to this work
| | - Shuyun Weng
- Department of Thyroid and Breast Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Xueliang Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
- Fujian Provincial Key Laboratory for Advanced Micro-nano Photonics Technology and Devices, Research Center for Photonics Technology, Quanzhou Normal University, Quanzhou, China
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Youliang Weng
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Xianggang Jia
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
| | - Rong Chen
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
| | - Duo Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
| | - Shangyuan Feng
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
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Das CM, Kong KV, Yong KT. Diagnostic plasmonic sensors: opportunities and challenges. Chem Commun (Camb) 2022; 58:9573-9585. [PMID: 35975603 DOI: 10.1039/d2cc03431j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The medical fraternity is currently burgeoned and stressed with a huge rush of patients who have inflammatory conditions, metabolite diseases, and cardiovascular diseases. In these circumstances, advanced sensing technologies could have a huge impact on the quality of life of patients. Given plasmonic resonance effects significantly improve the ability to rapidly and accurately detect biological markers, plasmonic technology is harnessed to develop a fast and accurate diagnosis that can provide timely intervention with the diseases and can also aid the recovery process by complementing the therapy stage. In this short review, we provide an overlook of how the field of plasmonic sensing has revolutionized the field of medical diagnostics. This article reviews the fundamentals and development of plasmonics. In addition, we highlight the sensitivity of various SPR and LSPR sensors. The chemistry for functionalizing plasmonic sensors is also discussed. This review also outlines some general suggestions for future directions that we feel might be useful to advance our understanding of the universe or speed up the development of plasmonic sensors in the future.
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Affiliation(s)
- Chandreyee Manas Das
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.,CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, 637553, Singapore
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei City, Taiwan
| | - Ken-Tye Yong
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia. .,The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia.,The Biophotonics and MechanoBioengineering Lab, The University of Sydney, Sydney, New South Wales 2006, Australia
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Lin J, Weng Y, Lin X, Qiu S, Huang Z, Pan C, Li Y, Kong KV, Zhang X, Feng S. Highly Efficient Blood Protein Analysis Using Membrane Purification Technique and Super-Hydrophobic SERS Platform for Precise Screening and Staging of Nasopharyngeal Carcinoma. Nanomaterials (Basel) 2022; 12:2724. [PMID: 35957154 PMCID: PMC9370769 DOI: 10.3390/nano12152724] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/18/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Early screening and precise staging are crucial for reducing mortality in patients with nasopharyngeal carcinoma (NPC). This study aimed to assess the performance of blood protein surface-enhanced Raman scattering (SERS) spectroscopy, combined with deep learning, for the precise detection of NPC. A highly efficient protein SERS analysis, based on a membrane purification technique and super-hydrophobic platform, was developed and applied to blood samples from 1164 subjects, including 225 healthy volunteers, 120 stage I, 249 stage II, 291 stage III, and 279 stage IV NPC patients. The proteins were rapidly purified from only 10 µL of blood plasma using the membrane purification technique. Then, the super-hydrophobic platform was prepared to pre-concentrate tiny amounts of proteins by forming a uniform deposition to provide repeatable SERS spectra. A total of 1164 high-quality protein SERS spectra were rapidly collected using a self-developed macro-Raman system. A convolutional neural network-based deep-learning algorithm was used to classify the spectra. An accuracy of 100% was achieved for distinguishing between the healthy and NPC groups, and accuracies of 96%, 96%, 100%, and 100% were found for the differential classification among the four NPC stages. This study demonstrated the great promise of SERS- and deep-learning-based blood protein testing for rapid, non-invasive, and precise screening and staging of NPC.
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Affiliation(s)
- Jinyong Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou 350007, China
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014, China
| | - Youliang Weng
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014, China
| | - Xueliang Lin
- Fujian Provincial Key Laboratory for Advanced Micro-Nano Photonics Technology and Devices, Research Center for Photonics Technology, Quanzhou Normal University, Quanzhou 362046, China
| | - Sufang Qiu
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014, China
| | - Zufang Huang
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou 350007, China
| | - Changbin Pan
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou 350007, China
| | - Ying Li
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014, China
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Xianzeng Zhang
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou 350007, China
| | - Shangyuan Feng
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou 350007, China
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Hsu YF, Wu TW, Kang YH, Wu CY, Liu YH, Peng SM, Kong KV, Yang JS. Porous Supramolecular Assembly of Pentiptycene-Containing Gold(I) Complexes: Persistent Excited-State Aurophilicity and Inclusion-Induced Emission Enhancement. Inorg Chem 2022; 61:11981-11991. [PMID: 35838662 DOI: 10.1021/acs.inorgchem.2c01786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report herein a porous supramolecular framework formed by a linear mononuclear Au(I) complex (1) via the tongue-and-groove-like joinery between the pentiptycene U-cavities (grooves) and the rod-shaped π-conjugated backbone and alkyl chains (tongues) with the assistance of C-H···π and aurophilic interactions. The framework contains distorted tetrahedral Au4 units, which undergo stepwise and persistent photoinduced Au(I)-Au(I) bond shortening (excited-state aurophilicity), leading to multicolored luminescence photochromism. The one-dimensional pore channels could accommodate different solvates and guests, and the guest inclusion-induced luminescence enhancement (up to 300%) and/or vapochromism are characterized. A correlation between the aurophilic bonding and the luminescence activity is uncovered by TDDFT calculations. Isostructural derivatives 2 and 3 corroborate both the robustness of the porous supramolecular assembly and the mechanisms of the stimulation-induced luminescence properties of 1. This work demonstrates the cooperation of aurophilicity and structural porosity and adaptability in achieving novel supramolecular photochemical properties.
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Affiliation(s)
- Ying-Feng Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617 Taiwan
| | - Ting-Wei Wu
- Department of Chemistry, National Taiwan University, Taipei 10617 Taiwan
| | - Yu-Hsuan Kang
- Department of Chemistry, National Taiwan University, Taipei 10617 Taiwan
| | - Cheng-Yun Wu
- Department of Chemistry, National Taiwan University, Taipei 10617 Taiwan
| | - Yi-Hung Liu
- Department of Chemistry, National Taiwan University, Taipei 10617 Taiwan
| | - Shie-Ming Peng
- Department of Chemistry, National Taiwan University, Taipei 10617 Taiwan
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei 10617 Taiwan
| | - Jye-Shane Yang
- Department of Chemistry, National Taiwan University, Taipei 10617 Taiwan
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10
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Kong KV, Wu YC, Liu YC, Tsai SW, Chu KT, Chen HJ, Wu CY, Hsu YY, Hsieh CC, Liu WJ, Chiang MH. Demethylation of Artificial Hydrogenase Agent for Prolonged CO Release and Enhanced Anti-Tau Aggregation Activity. Chem Commun (Camb) 2022; 58:7245-7248. [DOI: 10.1039/d2cc02119f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon Monoxide (CO) plays an important role in signaling in the cells, making its use as a therapeutic tool highly intriguing. Reduced burst emissions are important to avoid the cytotoxicity...
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11
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Lin D, Hsieh CL, Hsu KC, Liao PH, Qiu S, Gong T, Yong KT, Feng S, Kong KV. Geometrically encoded SERS nanobarcodes for the logical detection of nasopharyngeal carcinoma-related progression biomarkers. Nat Commun 2021; 12:3430. [PMID: 34078895 PMCID: PMC8173014 DOI: 10.1038/s41467-021-23789-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 05/12/2021] [Indexed: 02/08/2023] Open
Abstract
The limited availability of nasopharyngeal carcinoma-related progression biomarker array kits that offer physicians comprehensive information is disadvantageous for monitoring cancer progression. To develop a biomarker array kit, systematic identification and differentiation of a large number of distinct molecular surface-enhanced Raman scattering (SERS) reporters with high spectral temporal resolution is a major challenge. To address this unmet need, we use the chemistry of metal carbonyls to construct a series of unique SERS reporters with the potential to provide logical and highly multiplex information during testing. In this study, we report that geometric control over metal carbonyls on nanotags can produce 14 distinct barcodes that can be decoded unambiguously using commercial Raman spectroscopy. These metal carbonyl nanobarcodes are tested on human blood samples and show strong sensitivity (0.07 ng/mL limit of detection, average CV of 6.1% and >92% degree of recovery) and multiplexing capabilities for MMPs.
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Affiliation(s)
- Duo Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
| | - Chang-Lin Hsieh
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Keng-Chia Hsu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Pei-Hsuan Liao
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Sufang Qiu
- Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Electronic Science and Engineering (National Exemplary School of Microelectronics), University of Electronic Science and Technology of China, Chengdu, China
| | - Ken-Tye Yong
- School of Biomedical Engineering, The University of Sydney, Sydney, NSW, Australia
- The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, Australia
| | - Shangyuan Feng
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian, China
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan.
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12
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Lin D, Yang SW, Hsieh CL, Hsu KJ, Gong T, Wu Q, Qiu S, Feng S, Kong KV. Tandem Quantification of Multiple Carbohydrates in Saliva Using Surface-Enhanced Raman Spectroscopy. ACS Sens 2021; 6:1240-1247. [PMID: 33560111 DOI: 10.1021/acssensors.0c02533] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The detection of carbohydrates in human body fluids is critical for disease diagnosis and healthy monitoring. Despite recent advances in glucose sensing, multiplex detection of different carbohydrates within a single assay that is capable of efficiently providing richer health information remains challenging. Herein, we report a versatile surface-enhanced Raman spectroscopy-based platform for the quantitative detection of monosaccharides (glucose, fructose, and galactose) in one test using a displace-and-trap mechanism. Moreover, due to the use of multiple optical interference-free (1800-2200 cm-1) signal-independent Raman probes, the detection range of this platform (0.125-7 mg/dL) perfectly covers physiological concentrations, enabling the quantitative detection of glucose and galactose in clinical human saliva samples. This work provides a noninvasive and high-efficiency potential tool for the screening of clinical diabetes and other carbohydrate-related diseases.
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Affiliation(s)
- Duo Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Digital Fujian Internet-of-Things Laboratory of Environment Monitoring, Fujian Normal University, Fuzhou 350007, China
| | - Shang-Wei Yang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chang-Lin Hsieh
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Keng-Jia Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Electronic Science and Engineering (National Exemplary School of Microelectronics), University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Qiong Wu
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Digital Fujian Internet-of-Things Laboratory of Environment Monitoring, Fujian Normal University, Fuzhou 350007, China
| | - Sufang Qiu
- Department of Radiation Oncology, Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Medical University Cancer Hospital & Fujian Cancer Hospital, Fuzhou 350014, China
| | - Shangyuan Feng
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Digital Fujian Internet-of-Things Laboratory of Environment Monitoring, Fujian Normal University, Fuzhou 350007, China
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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13
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Hsu KJ, Hsieh CL, Tsai CJ, Kong KV. Probing Molecular-Scale Oxidative Generation of Quinone Methides and Their Transformation Using Tip-Enhanced Raman Spectroscopy. J Phys Chem Lett 2021; 12:1110-1115. [PMID: 33475376 DOI: 10.1021/acs.jpclett.0c03313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Quinone methides (QMs) are very important intermediates in chemistry. These species are most often generated in situ with metal oxidants and transition metal complexes. Here, tip-enhanced Raman spectroscopy (TERS) has been implemented to investigate the in situ oxidative generation of a QM species from alkylphenols facilitated by a transition metal complex. Using TERS, the metal oxidant-mediated transformation of a phenol species has been observed. The subsequent oxidative addition reaction of QM has also been identified based on distinct vibrational features, which have been assigned based on density functional theory (DFT). This study may establish TERS as a chemical detection tool for various QM-mediated reactions.
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Affiliation(s)
- Keng-Jia Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chang-Lin Hsieh
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chi-Jui Tsai
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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14
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Ke ZY, Tsai CJ, Liao PH, Kong KV. Photoinduced Enhanced Raman Probe for Use in Highly Specific and Sensitive Imaging for Tyrosine Dimerization in Inflammatory Cells. J Phys Chem Lett 2020; 11:7443-7448. [PMID: 32803983 DOI: 10.1021/acs.jpclett.0c01938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A background-free photoinduced enhanced Raman (PIER) probe for highly sensitive detection of tyrosine dimerization process due to oxidative reaction in inflammatory cells is presented. The PIER probe could monitor oxidative reaction in real time by producing time-resolved spectral with discrete changes in Raman intensity. To the best of our knowledge, this is the first report on C≡C probes with PIER and vastly improved Raman activity. These results will contribute to the cutting edge of development of stable and highly sensitive chemical imaging technology.
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Affiliation(s)
- Zi-Yu Ke
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617
| | - Chi-Jui Tsai
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617
| | - Pei-Hsuan Liao
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 10617
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15
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Kuo C, Hsu L, Chen Y, Goto K, Maity S, Liu Y, Peng S, Kong KV, Shinmyozu T, Yang J. Alkyl Chain Length‐ and Polymorph‐Dependent Photomechanochromic Fluorescence of Anthracene Photodimerization in Molecular Crystals: Role of the Lattice Stiffness. Chemistry 2020; 26:11511-11521. [DOI: 10.1002/chem.202000353] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/09/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng‐Zong Kuo
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Li‐Yun Hsu
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Yu‐Shan Chen
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Kenta Goto
- Institute for Materials Chemistry and Engineering Kyushu University 744 Motooka Nishi-ku Fukuoka 8190395 Japan
| | - Subhendu Maity
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Yi‐Hung Liu
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Shie‐Ming Peng
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Kien Voon Kong
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Teruo Shinmyozu
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Jye‐Shane Yang
- Department of Chemistry National (Taiwan) University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
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16
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Lin YC, Ke ZY, Liao PH, Tseng CY, Kong KV. Reversible detection of phosphorylation and dephosphorylation by tip-enhanced Raman spectroscopy using a cyclopentadienyl ruthenium nanotag functionalized tip. Chem Commun (Camb) 2020; 56:936-939. [PMID: 31850409 DOI: 10.1039/c9cc08269g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The detection of cancer invasion is crucial for diagnosis. In this report, we employed a TERS tip and SERS nanotags to create a cell signaling based nano-sensing system. This system is capable of creating a reversible phosphorylation/de-phosphorylation cycle for TERS measurement. The reversible TERS sensing is then paired with a downstream binding domain, Src homology region 2 (SH2), which is associated with the cell signaling for cancer cell invasion. Such a system offers the advantages of convenient detection of nanotags and high sensitivity as validated in a cell model.
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Affiliation(s)
- Yi-Cheng Lin
- Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan.
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17
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Liao PH, Tseng CY, Ke ZY, Hsieh CL, Kong KV. Operando characterization of chemical reactions in single living cells using SERS. Chem Commun (Camb) 2020; 56:4852-4855. [DOI: 10.1039/d0cc01297a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Operando probing of chemical reactions for the delivery of gaseous signaling molecules in living cells that is critical for understanding the physiological metabolic processes.
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Affiliation(s)
- Pei-Hsuan Liao
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Ching-Yu Tseng
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Zi-Yu Ke
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Chang-Lin Hsieh
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Kien Voon Kong
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
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18
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Lin D, Gong T, Qiu S, Wu Q, Tseng CY, Kong KV, Chen G, Chen R. A dual signal amplification nanosensor based on SERS technology for detection of tumor-related DNA. Chem Commun (Camb) 2019; 55:1548-1551. [PMID: 30534756 DOI: 10.1039/c8cc07461e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A dual signal amplification method based on surface-enhanced Raman scattering (SERS) is developed by photo-triggered release of SERS probes from mesoporous silica-coated Au nanorods (SiO2@Au) and the use of a specially-designed SERS substrate with an internal reference. Two metal carbonyl (metal-CO) labels (Os-SCO and Re-SCO) are proposed here as novel interference-free labels. Results demonstrate that tumor-related DNA can be quantitatively detected by this reliable and ultra-sensitive SERS platform.
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Affiliation(s)
- Duo Lin
- College of Integrated Traditional Chinese and Western Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
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19
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Lin D, Lin YC, Yang SW, Zhou L, Leong WK, Feng SY, Kong KV. Organometallic-Constructed Tip-Based Dual Chemical Sensing by Tip-Enhanced Raman Spectroscopy for Diabetes Detection. ACS Appl Mater Interfaces 2018; 10:41902-41908. [PMID: 30387600 DOI: 10.1021/acsami.8b11950] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Tip-enhanced Raman spectroscopy (TERS) is capable of probing specific molecular information with high sensitivity, but dual chemical sensing remains a challenge. Another major hindrance to TERS chemical detection in biosamples such as blood is the interference from the strong absorptions of biomolecules. Herein, we report the preparation of an organometallic-conjugated TERS tip. We demonstrate that organometallic chemistry can be perfectly coupled with TERS for dual-molecule sensing. The unique Raman signals generated by the organometallic compound circumvent signal interference from the biomolecules in blood, allowing the rapid analysis of two important molecules (glucose and thiol) in ultralow volume (50 nL) samples. This enabled a correlation between the thiol and glucose levels in the blood of nondiabetic and diabetic patients to be drawn.
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Affiliation(s)
- Duo Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology , Fujian Normal University , Fuzhou 350007 , China
- College of Integrated Traditional Chinese and Western Medicine , Fujian University of Traditional Chinese Medicine , Fuzhou 350122 , China
| | - Yi-Cheng Lin
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Shang-Wei Yang
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Lan Zhou
- Department of Urology, Shanghai East Hospital , Tongji University School of Medicine , Shanghai 200000 , China
| | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 639798 , Singapore
| | - Shang-Yuan Feng
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology , Fujian Normal University , Fuzhou 350007 , China
| | - Kien Voon Kong
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
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20
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Chien YH, Chan KK, Anderson T, Kong KV, Ng BK, Yong KT. Advanced Near-Infrared Light-Responsive Nanomaterials as Therapeutic Platforms for Cancer Therapy. Adv Therap 2018. [DOI: 10.1002/adtp.201800090] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yi-Hsin Chien
- School of Electrical and Electronic Engineering; Nanyang Technological University; Singapore 639798
- Department of Materials Science and Engineering; Feng Chia University; Taichung 40724 Taiwan
| | - Kok Ken Chan
- School of Electrical and Electronic Engineering; Nanyang Technological University; Singapore 639798
| | - Tommy Anderson
- School of Electrical and Electronic Engineering; Nanyang Technological University; Singapore 639798
| | - Kien Voon Kong
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
| | - Beng Koon Ng
- School of Electrical and Electronic Engineering; Nanyang Technological University; Singapore 639798
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering; Nanyang Technological University; Singapore 639798
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21
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Lin D, Gong T, Hong ZY, Qiu S, Pan J, Tseng CY, Feng S, Chen R, Kong KV. Metal Carbonyls for the Biointerference-Free Ratiometric Surface-Enhanced Raman Spectroscopy-Based Assay for Cell-Free Circulating DNA of Epstein-Barr Virus in Blood. Anal Chem 2018; 90:7139-7147. [PMID: 29808995 DOI: 10.1021/acs.analchem.8b01931] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
By taking advantage of the spectral properties of metal carbonyls, we have designed a surface-enhanced Raman spectroscopy (SERS) ratiometric assay for measuring cell-free circulating DNA (cfDNA) from Epstein-Barr virus in blood for nasopharyngeal carcinoma (NPC). This assay consists of a rhenium carbonyl (Re-CO) to serve as a DNA probe, an osmium carbonyl (Os-CO) embedded within the SERS-active substrate as an internal reference, and a streptavidin layer on the surface of the substrate. Hybridization of cfDNA with biotinylated-capture sequence leads to immobilization of cfDNA on the substrate. The binding of Re-CO via daunorubicin (DNR) to cfDNA is accompanied by an appearance of a strong symmetry stretching vibrations peak at 2113 cm-1, which has spectral overlap with Os-CO (2025 cm-1). This results in an increase in the I2113/ I2025 ratio and quantitatively correlates with cfDNA. This SERS assay can be readily used to detect cfDNA in blood samples from patients due to the intensity ratio of I2113/ I2025 lying in a silent region (1780-2200 cm-1) in the SERS spectrum of the biomolecules.
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Affiliation(s)
- Duo Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education , Fujian Normal University , Fuzhou , Fujian 350007 , China.,College of Integrated Traditional Chinese & Western Medicine , Fujian University of Traditional Chinese Medicine , Fuzhou , Fujian 350122 , China
| | - Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices , University of Electronic Science and Technology of China , Chengdu , Sichuan 610054 China
| | - Zi-Yao Hong
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Sufang Qiu
- Department of Radiation Oncology , Fujian Provincial Cancer Hospital and Fujian Medical University Cancer Hospital , Fuzhou , Fujian 350014 , China
| | - Jianji Pan
- Department of Radiation Oncology , Fujian Provincial Cancer Hospital and Fujian Medical University Cancer Hospital , Fuzhou , Fujian 350014 , China
| | - Chinh-Yu Tseng
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Shangyuan Feng
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education , Fujian Normal University , Fuzhou , Fujian 350007 , China
| | - Rong Chen
- Key Laboratory of OptoElectronic Science and Technology for Medicine, Ministry of Education , Fujian Normal University , Fuzhou , Fujian 350007 , China
| | - Kien Voon Kong
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
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22
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Tan MJ, Pan HC, Tan HR, Chai JW, Lim QF, Wong TI, Zhou X, Hong ZY, Liao LD, Kong KV. Hybrid Materials: Flexible Modulation of CO-Release Using Various Nuclearity of Metal Carbonyl Clusters on Graphene Oxide for Stroke Remediation (Adv. Healthcare Mater. 5/2018). Adv Healthc Mater 2018. [DOI: 10.1002/adhm.201870022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mein Jin Tan
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Han-Chi Pan
- Institute of Biomedical Engineering and Nanomedicine; National Health Research Institutes; 35 Keyan Road Zhunan Miaoli County 35053 Taiwan
| | - Hui Ru Tan
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Jian Wei Chai
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Qi Feng Lim
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Ten It Wong
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Xiaodong Zhou
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Zi-Yao Hong
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
| | - Lun-De Liao
- Institute of Biomedical Engineering and Nanomedicine; National Health Research Institutes; 35 Keyan Road Zhunan Miaoli County 35053 Taiwan
| | - Kien Voon Kong
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
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23
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Tan MJ, Pan HC, Tan HR, Chai JW, Lim QF, Wong TI, Zhou X, Hong ZY, Liao LD, Kong KV. Flexible Modulation of CO-Release Using Various Nuclearity of Metal Carbonyl Clusters on Graphene Oxide for Stroke Remediation. Adv Healthc Mater 2018; 7. [PMID: 29327505 DOI: 10.1002/adhm.201701113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/29/2017] [Indexed: 11/11/2022]
Abstract
Utilizing the size-dependent adsorption properties of ruthenium carbonyl clusters (Ru-carbon monoxide (CO)) onto graphene oxide (GO), a facile CO-release platform for in situ vasodilation as a treatment for stroke-related vascular diseases is developed. The rate and amount of formation of the CO-release-active RuII (CO)2 species can be modulated by a simple mixing procedure at room temperature. The subsequent thermally induced oxidation of RuII (CO)2 to RuO2 on the GO surface results in the release of CO. Further modulation of thermal and CO-release properties can be achieved via a hybridization of medium- and high-nuclearity of Ru-CO clusters that produces a RuO2 /RuII (CO)2 /6 Ru-CO-GO composite, where 6 Ru-CO-GO provides a photothermally activated reservoir of RuII (CO)2 species and the combined infrared absorption properties of GO and RuO2 provides photothermal response for in situ CO-release. The RuO2 /RuII (CO)2 /6 Ru-CO-GO composite does not produce any cytotoxicity and the efficacy of the composite is further demonstrated in a cortical photothrombotic ischemia rat model.
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Affiliation(s)
- Mein Jin Tan
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Han-Chi Pan
- Institute of Biomedical Engineering and Nanomedicine; National Health Research Institutes; 35 Keyan Road Zhunan Miaoli County 35053 Taiwan
| | - Hui Ru Tan
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Jian Wei Chai
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Qi Feng Lim
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Ten It Wong
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Xiaodong Zhou
- Institute of Materials Research and Engineering; A*STAR; 2 Fusionopolis Way. Innovis, #08-03 138634 Singapore
| | - Zi-Yao Hong
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
| | - Lun-De Liao
- Institute of Biomedical Engineering and Nanomedicine; National Health Research Institutes; 35 Keyan Road Zhunan Miaoli County 35053 Taiwan
| | - Kien Voon Kong
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
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24
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Lin D, Tseng CY, Lim QF, Tan MJ, Kong KV. A rapid and highly sensitive strain-effect graphene-based bio-sensor for the detection of stroke and cancer bio-markers. J Mater Chem B 2018; 6:2536-2540. [DOI: 10.1039/c8tb00404h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bio-sensor for the detection of cancer biomarkers utilizing the adsorption properties of ruthenium carbonyl on monolayer graphene.
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Affiliation(s)
- Duo Lin
- College of Integrated Traditional Chinese and Western Medicine
- Fujian University of Traditional Chinese Medicine
- Fuzhou
- China
- Fujian Normal University
| | - Chinh-Yu Tseng
- Department of Chemistry
- National Taiwan University
- Taipei
- Taiwan
| | - Qi Feng Lim
- Institute of Material Research and Engineering
- A*STAR
- Singapore
| | - Mein Jin Tan
- Institute of Material Research and Engineering
- A*STAR
- Singapore
| | - Kien Voon Kong
- Department of Chemistry
- National Taiwan University
- Taipei
- Taiwan
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25
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Tan MJ, Hong ZY, Chang MH, Liu CC, Cheng HF, Loh XJ, Chen CH, Liao CD, Kong KV. Metal carbonyl-gold nanoparticle conjugates for highly sensitive SERS detection of organophosphorus pesticides. Biosens Bioelectron 2017; 96:167-172. [PMID: 28494368 DOI: 10.1016/j.bios.2017.05.005] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 04/19/2017] [Accepted: 05/03/2017] [Indexed: 01/29/2023]
Abstract
The binding of organometallic osmium carbonyl clusters onto the surface of gold nanoparticles (10OsCO-Au NPs) greatly enhanced the CO stretching vibration signal at ~2100cm-1, which is relatively free from interference due to the absorbance of biomolecules. By utilizing the acetylcholinesterase (AChE) mediated hydrolysis of acetylthiocholine to thiocholine where the activity of AChE is inhibited by the presence of organophosphate pesticides (OPPs), the subsequent thiocholine-induced aggregation of 10OsCO-Au NPs can be monitored by the change in color of the NPs solution and the variation in intensity of the SERS CO signal. The change in color offers a fast pre-screening method, whereas monitoring via SERS is used for greater accuracy and lower limit of detection (0.1 ppb) for quantitative detection. Its potential as a quick and accurate method of OPPs monitoring in consumer products was demonstrated in the detection of OPPs in real spiked samples such as beer.
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Affiliation(s)
- Mein Jin Tan
- Institute of Materials Research and Engineering, A*STAR Singapore, Singapore
| | - Zi-Yao Hong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Mei-Hua Chang
- Food and Drug Administration (FDA), Ministry of Health and Welfare, Taipei, Taiwan
| | - Chih-Chen Liu
- Food and Drug Administration (FDA), Ministry of Health and Welfare, Taipei, Taiwan
| | - Hwei-Fang Cheng
- Food and Drug Administration (FDA), Ministry of Health and Welfare, Taipei, Taiwan
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, A*STAR Singapore, Singapore; Department of Materials Science and Engineering, National University of Singapore, Singapore
| | - Ching-Hsiang Chen
- Sustainable Energy Development Center, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Chia-Ding Liao
- Food and Drug Administration (FDA), Ministry of Health and Welfare, Taipei, Taiwan.
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan.
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26
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Chien YH, Wang CH, Liu CC, Chang SH, Kong KV, Chang YC. Large-Scale Nanofabrication of Designed Nanostructures Using Angled Nanospherical-Lens Lithography for Surface Enhanced Infrared Absorption Spectroscopy. ACS Appl Mater Interfaces 2017; 9:24917-24925. [PMID: 28671812 DOI: 10.1021/acsami.7b08994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Nanophotonics has been a focused research discipline for the past decade and has resulted in many novel concepts that promise to change human life. However, the actual penetration of this research into real products is severely limited mostly due to the slow development of economic nanofabrication. In this study, we have demonstrated a versatile and low-cost nanofabrication method referred to as "angled nanospherical-lens lithography (A-NLL)", which is able to produce large-scale and periodic nanopatterns. The nanopatterns designed within a two-dimensional polar chart can be carefully fabricated on the substrate. The fabricated patterns easily cover an area larger than 1 cm2, which is beneficial as platforms for surface enhanced infrared absorption (SEIRA) where an expensive and bulky IR microscope is not required. We believe that the proposed A-NLL method is ideal for industrialization of future nanophotonic applications.
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Affiliation(s)
- Yi-Hsin Chien
- Research Center for Applied Sciences, Academia Sinica , Taipei 11526, Taiwan
| | - Chang-Han Wang
- Research Center for Applied Sciences, Academia Sinica , Taipei 11526, Taiwan
| | - Chi-Ching Liu
- Research Center for Applied Sciences, Academia Sinica , Taipei 11526, Taiwan
| | - Shih-Hui Chang
- Department of Photonics, National Cheng Kung University , Tainan 70101, Taiwan
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University , Taipei 10617, Taiwan
| | - Yun-Chorng Chang
- Research Center for Applied Sciences, Academia Sinica , Taipei 11526, Taiwan
- Department of Photonics, National Cheng Kung University , Tainan 70101, Taiwan
- Department of Physics, National Taiwan University , Taipei 10617, Taiwan
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27
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Gong T, Hong ZY, Chen CH, Tsai CY, Liao LD, Kong KV. Optical Interference-Free Surface-Enhanced Raman Scattering CO-Nanotags for Logical Multiplex Detection of Vascular Disease-Related Biomarkers. ACS Nano 2017; 11:3365-3375. [PMID: 28245103 DOI: 10.1021/acsnano.7b00733] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Matrix metalloproteinases (MMPs), specifically MMP-2, MMP-7, and MMP-9, have been discovered to be linked to many forms of vascular diseases such as stroke, and their detection is crucial to facilitate clinical diagnosis. In this work, we prepared a class of optical interference-free SERS nanotags (CO-nanotags) that can be used for the purpose of multiplex sensing of different MMPs. Multiplex detection with the absence of cross-talk was achieved by using CO-nanotags with individual tunable intrinsic Raman shifts of CO in the 1800-2200 cm-1 region determined by the metal core and ligands of the metal carbonyl complex. Boolean logic was used as well to simultaneously probe for two proteolytic inputs. Such nanotags offer the advantages of convenient detection of target nanotags and high sensitivity as validated in the ischemia rat model.
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Affiliation(s)
- Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China , Chengdu, 610054, P. R. China
| | - Zi-Yao Hong
- Department of Chemistry, National Taiwan University , Taipei, 10617, Taiwan
| | - Ching-Hsiang Chen
- Sustainable Energy Development Center, National Taiwan University of Science and Technology , Taipei, 10607, Taiwan
| | - Cheng-Yen Tsai
- Department of Chemistry, National Taiwan University , Taipei, 10617, Taiwan
| | - Lun-De Liao
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes , 35 Keyen Road, Zhunan, Miaoli Country, 35053, Taiwan
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University , Taipei, 10617, Taiwan
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28
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He YJ, Tu TH, Su MK, Yang CW, Kong KV, Chan YT. Facile Construction of Metallo-supramolecular Poly(3-hexylthiophene)-block-Poly(ethylene oxide) Diblock Copolymers via Complementary Coordination and Their Self-Assembled Nanostructures. J Am Chem Soc 2017; 139:4218-4224. [DOI: 10.1021/jacs.7b01010] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yun-Jui He
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Tsung-Han Tu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ming-Kun Su
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chia-Wei Yang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Tsu Chan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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29
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Takeda K, Sriram S, Chan XHD, Ong WK, Yeo CR, Tan B, Lee SA, Kong KV, Hoon S, Jiang H, Yuen JJ, Perumal J, Agrawal M, Vaz C, So J, Shabbir A, Blaner WS, Olivo M, Han W, Tanavde V, Toh SA, Sugii S. Erratum. Retinoic Acid Mediates Visceral-Specific Adipogenic Defects of Human Adipose-Derived Stem Cells. Diabetes 2016;65:1164-1178. Diabetes 2016; 65:2816. [PMID: 27555576 PMCID: PMC5384654 DOI: 10.2337/db16-er09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Takeda K, Sriram S, Chan XHD, Ong WK, Yeo CR, Tan B, Lee SA, Kong KV, Hoon S, Jiang H, Yuen JJ, Perumal J, Agrawal M, Vaz C, So J, Shabbir A, Blaner WS, Olivo M, Han W, Tanavde V, Toh SA, Sugii S. Retinoic Acid Mediates Visceral-Specific Adipogenic Defects of Human Adipose-Derived Stem Cells. Diabetes 2016; 65:1164-78. [PMID: 26936961 PMCID: PMC5384626 DOI: 10.2337/db15-1315] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 02/20/2016] [Indexed: 12/20/2022]
Abstract
Increased visceral fat, rather than subcutaneous fat, during the onset of obesity is associated with a higher risk of developing metabolic diseases. The inherent adipogenic properties of human adipose-derived stem cells (ASCs) from visceral depots are compromised compared with those of ASCs from subcutaneous depots, but little is known about the underlying mechanisms. Using ontological analysis of global gene expression studies, we demonstrate that many genes involved in retinoic acid (RA) synthesis or regulated by RA are differentially expressed in human tissues and ASCs from subcutaneous and visceral fat. The endogenous level of RA is higher in visceral ASCs; this is associated with upregulation of the RA synthesis gene through the visceral-specific developmental factor WT1. Excessive RA-mediated activity impedes the adipogenic capability of ASCs at early but not late stages of adipogenesis, which can be reversed by antagonism of RA receptors or knockdown of WT1. Our results reveal the developmental origin of adipocytic properties and the pathophysiological contributions of visceral fat depots.
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MESH Headings
- Active Transport, Cell Nucleus/drug effects
- Adipogenesis/drug effects
- Adult Stem Cells/cytology
- Adult Stem Cells/drug effects
- Adult Stem Cells/metabolism
- Adult Stem Cells/pathology
- Bariatric Surgery
- Benzoates/pharmacology
- Cells, Cultured
- Down-Regulation/drug effects
- Gene Expression Profiling
- Gene Expression Regulation, Developmental/drug effects
- Gene Ontology
- Humans
- Intra-Abdominal Fat/cytology
- Intra-Abdominal Fat/drug effects
- Intra-Abdominal Fat/metabolism
- Intra-Abdominal Fat/pathology
- Middle Aged
- Naphthalenes/pharmacology
- Obesity, Morbid/metabolism
- Obesity, Morbid/pathology
- Obesity, Morbid/surgery
- RNA Interference
- Receptors, Retinoic Acid/agonists
- Receptors, Retinoic Acid/antagonists & inhibitors
- Receptors, Retinoic Acid/metabolism
- Response Elements/drug effects
- Signal Transduction/drug effects
- Stilbenes/pharmacology
- Subcutaneous Fat, Abdominal/cytology
- Subcutaneous Fat, Abdominal/drug effects
- Subcutaneous Fat, Abdominal/metabolism
- Subcutaneous Fat, Abdominal/pathology
- Tretinoin/metabolism
- Up-Regulation/drug effects
- WT1 Proteins/antagonists & inhibitors
- WT1 Proteins/genetics
- WT1 Proteins/metabolism
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Affiliation(s)
- Kosuke Takeda
- Fat Metabolism and Stem Cell Group, Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - Sandhya Sriram
- Fat Metabolism and Stem Cell Group, Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - Xin Hui Derryn Chan
- Fat Metabolism and Stem Cell Group, Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - Wee Kiat Ong
- Fat Metabolism and Stem Cell Group, Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - Chia Rou Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Betty Tan
- Bioinformatics Institute, A*STAR, Singapore
| | - Seung-Ah Lee
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY
| | - Kien Voon Kong
- Bio-optical Imaging Group, Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - Shawn Hoon
- Molecular Engineering Lab, A*STAR, Singapore
| | - Hongfeng Jiang
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY
| | - Jason J Yuen
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY
| | - Jayakumar Perumal
- Bio-optical Imaging Group, Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - Madhur Agrawal
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Jimmy So
- Department of Surgery, National University Hospital, Singapore
| | - Asim Shabbir
- Department of Surgery, National University Hospital, Singapore
| | - William S Blaner
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY
| | - Malini Olivo
- Bio-optical Imaging Group, Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - Weiping Han
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore
| | - Vivek Tanavde
- Bioinformatics Institute, A*STAR, Singapore Institute of Medical Biology, A*STAR, Singapore
| | - Sue-Anne Toh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shigeki Sugii
- Fat Metabolism and Stem Cell Group, Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, A*STAR, Singapore Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore
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31
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Abstract
Transition metal carbonyls exhibit strong CO absorptions in the 2200–1800 cm−1 region, which is free of interference from other functional groups. This feature has led to their applications in bio-imaging and -sensing, in particular through mid-IR, Raman and more recently, surface-enhanced Raman spectroscopy (SERS).
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Affiliation(s)
- Zhiyong Lam
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
- Bio-Optical Imaging Group
- Singapore Bioimaging Consortium
| | | | - Malini Olivo
- Bio-Optical Imaging Group
- Singapore Bioimaging Consortium
- Agency for Science
- Technology and Research (A*STAR)
- Singapore
| | - Weng Kee Leong
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
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32
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Gong T, Zhang N, Kong KV, Goh D, Ying C, Auguste JL, Shum PP, Wei L, Humbert G, Yong KT, Olivo M. Rapid SERS monitoring of lipid-peroxidation-derived protein modifications in cells using photonic crystal fiber sensor. J Biophotonics 2016; 9:32-37. [PMID: 26366883 DOI: 10.1002/jbio.201500168] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 07/09/2015] [Accepted: 08/25/2015] [Indexed: 06/05/2023]
Abstract
We proposed a side channel photonic crystal fiber (SC-PCF) based Surface enhanced Raman spectroscopy (SERS) platform which is able to accurately monitor lipid peroxidation derived protein modifications in cells. This platform incorporates linoleamide alkyne (LAA), which is oxidized and subsequently modifies proteins in cells with alkyne functional group upon lipid peroxidation. By loading the side channel of SC-PCF with a mixture of gold nanoparticles and LAA treated cells, and subsequently measuring the interference-free alkyne Raman peak from these proteins in cells, strong SERS signal was obtained. The platform provides a method for the rapid monitoring of lipid peroxidation derived protein modification in cells.
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Affiliation(s)
- Tianxun Gong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (A*STAR), 11 Biopolis Way, Singapore, 138667
| | - Nan Zhang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798
- CINTRA CNRS/NTU/THALES, Research Techno Plaza, 50 Nanyang Drive, Singapore, 637553
| | - Kien Voon Kong
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (A*STAR), 11 Biopolis Way, Singapore, 138667
| | - Douglas Goh
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (A*STAR), 11 Biopolis Way, Singapore, 138667
| | - Cui Ying
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798
- CINTRA CNRS/NTU/THALES, Research Techno Plaza, 50 Nanyang Drive, Singapore, 637553
| | - Jean-Louis Auguste
- Xlim research institute, UMR 7252, CNRS/University of Limoges, 123 Avenue Albert Thomas, 87060, France
| | - Perry Ping Shum
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798
- CINTRA CNRS/NTU/THALES, Research Techno Plaza, 50 Nanyang Drive, Singapore, 637553
| | - Lei Wei
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798
| | - Georges Humbert
- Xlim research institute, UMR 7252, CNRS/University of Limoges, 123 Avenue Albert Thomas, 87060, France
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798.
| | - Malini Olivo
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (A*STAR), 11 Biopolis Way, Singapore, 138667.
- School of Physics, National University of Ireland, Galway, Ireland.
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33
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Lam Z, Balasundaram G, Kong KV, Chor BY, Goh D, Khezri B, Webster RD, Leong WK, Olivo M. High nuclearity carbonyl clusters as near-IR contrast agents for photoacoustic in vivo imaging. J Mater Chem B 2016; 4:3886-3891. [DOI: 10.1039/c6tb00075d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The high nuclearity osmium carbonyl cluster Na2[Os10(μ6-C)(CO)24] is a good near-IR photoacoustic contrast agent for full body imaging.
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Affiliation(s)
- Zhiyong Lam
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
- Singapore Bioimaging Consortium
- Agency for Science and Technology and Research (A*STAR)
| | - Ghayathri Balasundaram
- Singapore Bioimaging Consortium
- Agency for Science and Technology and Research (A*STAR)
- Singapore
| | | | - Bo Yang Chor
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Douglas Goh
- Singapore Bioimaging Consortium
- Agency for Science and Technology and Research (A*STAR)
- Singapore
| | - Bahareh Khezri
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Richard D. Webster
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Weng Kee Leong
- Division of Chemistry and Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Malini Olivo
- Singapore Bioimaging Consortium
- Agency for Science and Technology and Research (A*STAR)
- Singapore
- School of Physics
- National University of Ireland
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34
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Gong T, Kong KV, Goh D, Olivo M, Yong KT. Sensitive surface enhanced Raman scattering multiplexed detection of matrix metalloproteinase 2 and 7 cancer markers. Biomed Opt Express 2015; 6:2076-87. [PMID: 26114030 PMCID: PMC4473745 DOI: 10.1364/boe.6.002076] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 04/14/2015] [Accepted: 04/15/2015] [Indexed: 05/24/2023]
Abstract
A surface enhanced Raman spectroscopy (SERS) based platform was developed for sensitive multiplexed detection of matrix metalloproteinases (MMP) (MMP-2 and MMP-7) with low limit of detection and high specificity. Detection is based on the virtue of enzymatic reaction where a peptide can be cleaved only by its corresponding enzyme. The platform comprises two components, a specialized SERS-based bimetallic-film-over-nanosphere (BMFON) substrate and gold nanoparticles (AuNPs). The two components were functionalized such that binding between the two would occur through biotin-avidin-biotin complexation. Binding is hindered by MMP peptide chains conjugated onto the surfaces of the substrate and AuNPs, and can be removed only by cleaving the peptide chains with corresponding enzymes. Since AuNP binding sites become free after the peptides are cleaved, the number of binding sites for AuNPs onto the substrate would increase. By tagging the AuNPs, concentrations of MMP-specific enzymes can be quantified through examining intensities of signature SERS peaks of the tags. This cleave-and-bind mechanism was first validated by individual detection and quantification of MMP-2 and MMP-7. The platform was demonstrated to be able to sensitively detect concentrations of specific enzymes ranging from 1 ng/mL to 40 µg/mL, with close correlation between SERS intensity and concentrations. Finally, the multiplexed detection of MMP-2 and MMP-7 was demonstrated. The multiplexity of this platform provides a robust way to analyze diseases associated with MMP-2 and MMP-7 enzymes. Our work can be further developed as a clinical diagnostic tool to detect other MMP proteinase in bio-fluids samples, widening the number of biomarkers needed to characterize diseases better.
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Affiliation(s)
- Tianxun Gong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore ; Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (ASTAR), Helios #01-02, 11 Biopolis Way, 138667, Singapore ; These authors contributed equally to this work
| | - Kien Voon Kong
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (ASTAR), Helios #01-02, 11 Biopolis Way, 138667, Singapore ; These authors contributed equally to this work
| | - Douglas Goh
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (ASTAR), Helios #01-02, 11 Biopolis Way, 138667, Singapore
| | - Malini Olivo
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (ASTAR), Helios #01-02, 11 Biopolis Way, 138667, Singapore ; School of Physics, National University of Ireland, Galway, Ireland ;
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore ;
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35
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Kong KV, Leong WK, Lam Z, Gong T, Goh D, Lau WKO, Olivo M. A rapid and label-free SERS detection method for biomarkers in clinical biofluids. Small 2014; 10:5030-5034. [PMID: 25111592 DOI: 10.1002/smll.201401713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 07/16/2014] [Indexed: 06/03/2023]
Abstract
A metal carbonyl-functionalized nanostructured substrate can be used in a rapid and simple assay for the detection of A1AT, a potential biomarker for bladder cancer, in clinical urine samples. The assay involves monitoring changes in the carbonyl stretching vibrations of the metal carbonyl via surface-enhanced Raman spectroscopy (SERS). These vibrations lie in the absorption spectral window of 1800-2200 cm(-1), which is free of any spectral interference from biomolecules.
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Affiliation(s)
- Kien Voon Kong
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, 138667, Singapore
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36
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Tsytsarev V, Liao LD, Kong KV, Liu YH, Erzurumlu RS, Olivo M, Thakor NV. Recent progress in voltage-sensitive dye imaging for neuroscience. J Nanosci Nanotechnol 2014; 14:4733-4744. [PMID: 24757943 DOI: 10.1166/jnn.2014.9531] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Voltage-sensitive dye imaging (VSDi) enables visualization of information processing in different areas of the brain with reasonable spatial and temporal resolution. VSDi employs different chemical compounds to transduce neural activity directly into the changes in intrinsic optical signal. Physically, voltage-sensitive dyes (VSDs) are chemical probes that reside in the neural membrane and change their fluorescence or absorbance in response to membrane potential changes. Based on these features, VSDs can be divided into two groups-absorbance and fluorescence. The spatial and temporal resolution of the VSDi is limited mainly by the technical characteristics of the optical imaging setup (e.g., computer and light-sensitive device-charge-coupled device (CCD) camera or photodiode array). In this article, we briefly review the development of the VSD, technique of VSDi and applications in functional brain imaging.
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37
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Kong KV, Ho CJH, Gong T, Lau WKO, Olivo M. Sensitive SERS glucose sensing in biological media using alkyne functionalized boronic acid on planar substrates. Biosens Bioelectron 2014; 56:186-91. [PMID: 24487255 DOI: 10.1016/j.bios.2013.12.062] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 12/09/2013] [Accepted: 12/26/2013] [Indexed: 11/19/2022]
Abstract
In this work, we propose a novel glucose binding mechanism on a highly sensitive SERS substrate, in order to overcome challenges in specific glucose detection in bio-fluids. We make use of phenylboronic acid as a receptor for saccharide capture onto the substrate and the ability of the captured glucose molecule to undergo secondary binding with an alkyne-functionalized boronic acid to form a glucose-alkyne-boronic acid complex. The formation of this complex shows high selectivity for glucose, over other saccharides. In addition, the alkyne group of the alkyne-functionalized boronic acid exhibits a distinct Raman peak at 1996 cm(-1) in a biological silent region (1800-2800 cm(-1)) where most endogenous molecules, including glucose, show no Raman scattering, thus offering a high sensitivity over other SERS glucose sensing. The substrate offers long-term stability, as well as high SERS enhancement to the glucose-alkyne boronic acid complex on substrate. In addition, the reversibility of SERS signals at various incubation stages also shows reusability capabilities, whereas positive results in clinical urine samples demonstrate clinical feasibility. All these strongly suggest that this newly developed SERS-based assay offers great potential in glucose sensing.
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Affiliation(s)
- Kien Voon Kong
- Singapore Bioimaging Consortium, Agency for Science, Technology, and Research, Singapore
| | - Chris Jun Hui Ho
- Singapore Bioimaging Consortium, Agency for Science, Technology, and Research, Singapore
| | - Tianxun Gong
- Singapore Bioimaging Consortium, Agency for Science, Technology, and Research, Singapore
| | | | - Malini Olivo
- Singapore Bioimaging Consortium, Agency for Science, Technology, and Research, Singapore; School of Physics, National University of Ireland, Galway, Ireland.
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38
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Perumal J, Kong KV, Dinish US, Bakker RM, Olivo M. Design and fabrication of random silver films as substrate for SERS based nano-stress sensing of proteins. RSC Adv 2014. [DOI: 10.1039/c3ra44867c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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39
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Kong KV, Liao LD, Lam Z, Thakor NV, Leong WK, Olivo M. Organometallic carbonyl clusters: a new class of contrast agents for photoacoustic cerebral vascular imaging. Chem Commun (Camb) 2014; 50:2601-3. [DOI: 10.1039/c3cc48529c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The strong photoacoustic signal of a water soluble osmium carbonyl cluster allowed it to be employed as a contrast agent to image the cerebral vasculature of a rat. The high stability and low toxicity of such a compound make it an excellent candidate in such biomedical applications.
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Affiliation(s)
- Kien Voon Kong
- Singapore Bioimaging Consortium
- Agency for Science
- Technology and Research
- Singapore
| | - Lun-De Liao
- Singapore Institute for Neurotechnology (SINAPSE)
- National University of Singapore
- Singapore
| | - Zhiyong Lam
- Division of Chemistry & Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Nitish V. Thakor
- Singapore Institute for Neurotechnology (SINAPSE)
- National University of Singapore
- Singapore
- Department of Biomedical Engineering
- John Hopkins University
| | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry
- Nanyang Technological University
- Singapore
| | - Malini Olivo
- Singapore Bioimaging Consortium
- Agency for Science
- Technology and Research
- Singapore
- School of Physics
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40
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Kong KV, Lam Z, Lau WKO, Leong WK, Olivo M. A Transition Metal Carbonyl Probe for Use in a Highly Specific and Sensitive SERS-Based Assay for Glucose. J Am Chem Soc 2013; 135:18028-31. [DOI: 10.1021/ja409230g] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kien Voon Kong
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
| | - Zhiyong Lam
- Division of Chemistry & Biological Chemistry, Nanyang Technological University, Singapore
| | | | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry, Nanyang Technological University, Singapore
| | - Malini Olivo
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
- Department
of Pharmacy, National University of Singapore, Singapore
- School
of Physics, National University of Ireland, Galway, Ireland
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41
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Kong KV, Dinish US, Lau WKO, Olivo M. Sensitive SERS-pH sensing in biological media using metal carbonyl functionalized planar substrates. Biosens Bioelectron 2013; 54:135-40. [PMID: 24269755 DOI: 10.1016/j.bios.2013.10.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 10/25/2013] [Accepted: 10/25/2013] [Indexed: 10/26/2022]
Abstract
Conventional nanoparticle based Surface enhanced Raman scattering (SERS) technique for pH sensing often fails due to the aggregation of particles when detecting in acidic medium or biosamples having high ionic strength. Here, We develop SERS based pH sensing using a novel Raman reporter, arene chromium tricarbonyl linked aminothiophenol (Cr(CO)3-ATP), functionalized onto a nano-roughened planar substrates coated with gold. Unlike the SERS spectrum of the ATP molecule that dominates in the 400-1700 cm(-1) region, which is highly interfered by bio-molecules signals, metal carbonyl-ATP (Cr(CO)3)-ATP) offers the advantage of monitoring the pH dependent strong CO stretching vibrations in the mid-IR (1800-2200 cm(-1)) range. Raman signal of the CO stretching vibrations at ~1820 cm(-1) has strong dependency on the pH value of the environment, where its peak undergo noticeable shift as the pH of the medium is varied from 3.0 to 9.0. The sensor showed better sensitivity in the acidic range of the pH. We also demonstrate the pH sensing in a urine sample, which has high ionic strength and our data closely correlate to the value obtained from conventional sensor. In future, this study may lead to a sensitive chip based pH sensing platform in bio-fluids for the early diagnosis of diseases.
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Affiliation(s)
- Kien Voon Kong
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, Agency for Science Technology and Research (A(⁎)STAR), 11 Biopolis Way, Singapore 138667, Singapore
| | - U S Dinish
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, Agency for Science Technology and Research (A(⁎)STAR), 11 Biopolis Way, Singapore 138667, Singapore
| | - Weber Kam On Lau
- Department of Urology, Singapore General Hospital, Singapore, Singapore
| | - Malini Olivo
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium, Agency for Science Technology and Research (A(⁎)STAR), 11 Biopolis Way, Singapore 138667, Singapore; Department of Pharmacy, Faculty of Science, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore; School of Physics, National University of Ireland Galway, Galway, Ireland.
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Gong T, Olivo M, Dinish US, Goh D, Kong KV, Yong KT. Engineering bioconjugated gold nanospheres and gold nanorods as label-free plasmon scattering probes for ultrasensitive multiplex dark-field imaging of cancer cells. J Biomed Nanotechnol 2013; 9:985-91. [PMID: 23858962 DOI: 10.1166/jbn.2013.1603] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this paper, we proposed the use of gold nanoparticles as plasmon scattering probes for dark-field multiplex imaging of live cancer cells. By carefully engineering the surfaces, aqueous dispersions of anti-EGFR antibody-conjugated gold nanospheres and gold nanorods are prepared. We demonstrated the receptor-mediated delivery of antibody conjugated gold nanospheres and gold nanorods into EGFR receptor-positive oral squamous cell carcinoma cell line by using darkfield microscopy technique. Our result suggests that gold nanospheres and gold nanorods formulations could provide up to 7 types of plasmon scattering probes based on their tunability range with a 100 nm spectral separation in absorption bands.
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Affiliation(s)
- Tianxun Gong
- Bio-Optical Imaging Group, Singapore Bioimaging Consortium (SBIC), Agency for Science Technology and Research (A *STAR), 11 Biopolis Way, 138667, Singapore
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Kong KV, Lam Z, Goh WD, Leong WK, Olivo M. Metal Carbonyl-Gold Nanoparticle Conjugates for Live-Cell SERS Imaging. Angew Chem Int Ed Engl 2012; 51:9796-9. [DOI: 10.1002/anie.201204349] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 07/09/2012] [Indexed: 11/07/2022]
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Abstract
A study into the possible molecular targets of the osmium carbonyl cluster Os(3)(CO)(10)(NCCH(3))(2) (2) in the ER- breast carcinoma (MDA-MB-231) cell line was carried out. Infrared and (1)H NMR analyses of cells treated with 2 showed the formation of carboxylato- and thiolato-bridged clusters from the interaction with intracellular carboxylic acid and sulfhydryl residues. The cytotoxicity of 2 was reduced in the presence of fetal bovine serum, and measurement with Ellman's reagent as well as fluorescence confocal microscopy with tetramethylrhodamine-5-maleimide staining all demonstrated binding to intracellular sulfhydryl groups leading up to cell disruption. Tubulin-FITC antibody staining of treated cells showed disruption of the microtubules, and a tubulin polmerization assay showed that 2 induced hyperstabilization of the microtubules.
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Affiliation(s)
- Kien Voon Kong
- Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 117543
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Abstract
Osmium carbonyl clusters, especially the cluster [Os(3)(CO)(10)(NCCH(3))(2)], were found to be active against four cancer cell lines, namely, ER+ breast carcinoma (MCF-7), ER- breast carcinoma (MDA-MB-231), metastatic colorectal adenocarcinoma (SW620), and hepatocarcinoma (Hep G2). The mode of action was studied in MCF-7 and MDA-MB-231 cell lines by a number of morphological and apoptosis assays, all of which pointed to the induction of apoptosis.
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Affiliation(s)
- Kien Voon Kong
- Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 117543, Singapore
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Abstract
Two stable and water-soluble organometallic carbonyl cluster derivatives have been prepared and shown to enter the cell with ease. The CO stretching vibrations afford strong mid-infrared signals which have been demonstrated, for the first time, to be of utility in cell imaging via an IR microscope.
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Affiliation(s)
- Kien Voon Kong
- Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 119260
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