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Sharma R, Ghora M, Chouryal YN, Ganguly T, Acharjee D, Mondal DJ, Konar S, Nigam S, Ghosh P. Multifunctional Lanthanide-Doped Binary Fluorides and Graphene Oxide Nanocomposites Via a Task-Specific Ionic Liquid. ACS OMEGA 2022; 7:16906-16916. [PMID: 35647428 PMCID: PMC9134252 DOI: 10.1021/acsomega.1c06875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 04/27/2022] [Indexed: 06/15/2023]
Abstract
Graphene oxide-based nanocomposites (NCMs) exhibit diverse photonic and biophotonic applications. Innovative nanoengineering using a task-specific ionic liquid (IL), namely, 1-butyl-3-methyl tetrafluoroborate [C4mim][BF4], allows one to access a unique class of luminescent nanocomposites formed between lanthanide-doped binary fluorides and graphene oxide (GO). Here the IL is used as a solvent, templating agent, and as a reaction partner for the nanocomposite synthesis, that is, "all three in one". Our study shows that GO controls the size of the NCMs; however, it can tune the luminescence properties too. For example, the excitation spectrum of Ce3+ is higher-energy shifted when GO is attached. In addition, magnetic properties of GdF3:Tb3+ nanoparticles (NPs) and GdF3:Tb3+-GO NCMs are also studied at room temperature (300 K) and very low temperature (2 K). High magnetization results for the NPs (e.g., 6.676 emu g-1 at 300 K and 184.449 emu g-1 at 2 K in the applied magnetic field from +50 to -50 kOe) and NCMs promises their uses in many photonic and biphotonic applications including magnetic resonance imaging, etc.
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Affiliation(s)
- Rahul
Kumar Sharma
- Department
of Chemistry, Dr. H.S. Gour University (A
Central University), Sagar 470003, Madhya Pradesh, India
- Department
of Chemistry, Government Shyam Sundar Agrawal
PG College, Sihora, Jabalpur 483225, Madhya Pradesh India
| | - Madhubrata Ghora
- Department
of Chemistry, Dr. H.S. Gour University (A
Central University), Sagar 470003, Madhya Pradesh, India
| | - Yogendra N. Chouryal
- Department
of Chemistry, Dr. H.S. Gour University (A
Central University), Sagar 470003, Madhya Pradesh, India
| | - Trisit Ganguly
- Department
of Chemistry, Dr. H.S. Gour University (A
Central University), Sagar 470003, Madhya Pradesh, India
| | - Debopam Acharjee
- Department
of Chemistry, Dr. H.S. Gour University (A
Central University), Sagar 470003, Madhya Pradesh, India
| | - Dibya Jyoti Mondal
- Department
of Chemistry, Indian Institute of Science
Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya
Pradesh India
| | - Sanjit Konar
- Department
of Chemistry, Indian Institute of Science
Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya
Pradesh India
| | - Sandeep Nigam
- Chemistry
Division, Bhabha Atomic Research Centre, Trombay 400085, Mumbai, India
| | - Pushpal Ghosh
- Department
of Chemistry, Dr. H.S. Gour University (A
Central University), Sagar 470003, Madhya Pradesh, India
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Shen J, Dong J, Shao F, Zhao J, Gong L, Wang H, Chen W, Zhang Y, Cai Y. Graphene oxide induces autophagy and apoptosis via ROS-dependent AMPK/mTOR/ULK-1 pathway in colorectal cancer cells. Nanomedicine (Lond) 2022; 17:591-605. [PMID: 35394351 DOI: 10.2217/nnm-2022-0030] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Aim: To investigate the anticancer effects and action mechanism of graphene oxide (GO) in colorectal cancer (CRC). Materials & methods: Anticancer effects and mechanisms of GO in CRC were investigated both in vivo and in vitro. Results: GO significantly inhibited tumor growth both in vitro and in vivo. GO was able to enter HCT116 cells through endocytosis. GO treatment resulted in cytotoxicity, reactive oxygen species (ROS) production, apoptosis, autophagy and activation of the AMPK/mTOR/ULK1 signal pathway. However, ROS scavenger N-acetylcysteine (NAC) attenuated the above effects and restored the effects of GO on protein expressions related to apoptosis, autophagy and AMPK/mTOR/ULK1 signal pathways. Conclusion: GO exerts anticancer effects against CRC via ROS-dependent AMPK/mTOR/ULK-1 pathway-related autophagy and apoptosis.
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Affiliation(s)
- Jiamen Shen
- Department of General Surgery, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, People's Republic of China
| | - Jiatian Dong
- Department of General Surgery, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, People's Republic of China
| | - Feng Shao
- Key Laboratory of Thin Film & Microfabrication Technology (Ministry of Education), School of Electronics, Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Jiaying Zhao
- Department of General Surgery, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, People's Republic of China
| | - Lifeng Gong
- Department of General Surgery, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, People's Republic of China
| | - Huipeng Wang
- Department of General Surgery, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, People's Republic of China
| | - Wenjie Chen
- Department of General Surgery, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, People's Republic of China
| | - Yafei Zhang
- Key Laboratory of Thin Film & Microfabrication Technology (Ministry of Education), School of Electronics, Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Yuankun Cai
- Department of General Surgery, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, People's Republic of China
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Huang Y, Huang Z, Liu H, Zhang X, Cai Q, Yang X. Photoluminescent biodegradable polyorganophosphazene: A promising scaffold material for in vivo application to promote bone regeneration. Bioact Mater 2020; 5:102-109. [PMID: 31993535 PMCID: PMC6976913 DOI: 10.1016/j.bioactmat.2020.01.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 12/18/2022] Open
Abstract
Tissue engineering scaffolds made of conventional aliphatic polyesters are inherently non-fluorescent, which results in their in vivo degradation hard to be visualized. Photoluminescent biodegradable polyorganophosphazenes (PPOPs) are synthesized by introducing fluorophores onto the polyphosphazene backbone via nucleophilic substitution reaction. In this study, a fluorophore (termed as TPCA), derived from citric acid and 2-aminoethanethiol, was co-substituted with alanine ethyl ester onto the polyphosphazene backbone to obtain a photoluminescent biodegradable POPP (termed as PTA). The scaffolds made of PTA demonstrated non-cytotoxicity and cell affinity, particularly, capacity in promoting osteogenic differentiation of bone marrow mesenchymal stromal cells (BMSCs). In vivo evaluations using the rat calvarial defect model confirmed its strong potential in enhancing osteogenesis, more importantly, the in vivo degradation of the PTA scaffold could be monitored via its fluorescence intensity alongside implantation time.
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Affiliation(s)
- Yiqian Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhaohui Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Huanhuan Liu
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Xu Zhang
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin, 300070, China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
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