|
1
|
Maity S, Tomar MS, Wasnik K, Patra S, Modak MD, Gupta PS, Pareek D, Singh M, Paik P. Azadirachta indica Seed Derived Carbon Nanocapsules: Cell Imaging, Depolarization of Mitochondrial Membrane Potential, and Dose-Dependent Control Death of Breast Cancer. ACS Biomater Sci Eng 2022; 8:3608-3622. [PMID: 35892286 DOI: 10.1021/acsbiomaterials.2c00463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, a series of mesoporous carbon nanocapsules (mCNS) of size below 10 nm have been prepared from Azadirachta indica seeds with a very easy and cost-effective approach. These nanocapsules can emit red and green light and are effective for cell imaging. Further, these carbon nanocapsules are biocompatible toward the normal healthy cells, however, they possess modest cytotoxicity against the MCF-7 (human breast cancer) and triple-negative breast cancer (TNBC) (MDA- MB-231 breast cancer cells), and the rate of killing cancer cells strongly depends on the dose of mCNCs. Further, the mitochondrial membrane potential and apoptosis assay were performed to analyze the therapeutic significance of these nanocapsules to kill breast cancer. Results showed that these carbon nanocapsules can depolarize the mitochondrial membrane potential alone (without using conventional drugs) and can change the physiological parameters and cellular metabolic energy of the cancer cells and kill them. The apoptosis results confirmed the death of breast cancer cells in the form of apoptosis and necrosis. Moreover, the results suggested that the porous carbon nanocapsules (mCNCs) reported herein can be used as a potential candidate and useful for the theranostic applications such as for cancer cell detection and therapy without using any conventional drugs.
Collapse
Affiliation(s)
- Somedutta Maity
- School of Engineering Sciences and Technology, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Munendra Singh Tomar
- School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, Uttar Pradesh, India.,Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Kirti Wasnik
- School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, Uttar Pradesh, India
| | - Sukanya Patra
- School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, Uttar Pradesh, India
| | - Monami Das Modak
- School of Engineering Sciences and Technology, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Prem Shankar Gupta
- School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, Uttar Pradesh, India
| | - Divya Pareek
- School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, Uttar Pradesh, India
| | - Monika Singh
- School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, Uttar Pradesh, India
| | - Pradip Paik
- School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, Uttar Pradesh, India
| |
Collapse
|
|
2
|
Fontecha D, Mahn C, Bochinski JR, Clarke LI. Tracking the complete degradation lifecycle of poly(ethyl cyanoacrylate): From induced photoluminescence to nitrogen-doped nano-graphene precursor residue. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2021.109772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
|
3
|
Zakiyyan N, Darr CM, Chen B, Mathai C, Gangopadhyay K, McFarland J, Gangopadhyay S, Maschmann MR. Surface Plasmon Enhanced Fluorescence Temperature Mapping of Aluminum Nanoparticle Heated by Laser. SENSORS 2021; 21:s21051585. [PMID: 33668303 PMCID: PMC7956715 DOI: 10.3390/s21051585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/18/2021] [Accepted: 02/21/2021] [Indexed: 11/16/2022]
Abstract
Partially aggregated Rhodamine 6G (R6G) dye is used as a lights-on temperature sensor to analyze the spatiotemporal heating of aluminum nanoparticles (Al NPs) embedded within a tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride (THV) fluoropolymer matrix. The embedded Al NPs were photothermally heated using an IR laser, and the fluorescent intensity of the embedded dye was monitored in real time using an optical microscope. A plasmonic grating substrate enhanced the florescence intensity of the dye while increasing the optical resolution and heating rate of Al NPs. The fluorescence intensity was converted to temperature maps via controlled calibration. The experimental temperature profiles were used to determine the Al NP heat generation rate. Partially aggregated R6G dyes, combined with the optical benefits of a plasmonic grating, offered robust temperature sensing with sub-micron spatial resolution and temperature resolution on the order of 0.2 °C.
Collapse
Affiliation(s)
- Naadaa Zakiyyan
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO 65211, USA; (N.Z.); (C.M.D.); (B.C.); (C.M.); (K.G.); (S.G.)
| | - Charles M. Darr
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO 65211, USA; (N.Z.); (C.M.D.); (B.C.); (C.M.); (K.G.); (S.G.)
| | - Biyan Chen
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO 65211, USA; (N.Z.); (C.M.D.); (B.C.); (C.M.); (K.G.); (S.G.)
| | - Cherian Mathai
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO 65211, USA; (N.Z.); (C.M.D.); (B.C.); (C.M.); (K.G.); (S.G.)
| | - Keshab Gangopadhyay
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO 65211, USA; (N.Z.); (C.M.D.); (B.C.); (C.M.); (K.G.); (S.G.)
| | - Jacob McFarland
- J. Mike Walker Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA;
| | - Shubhra Gangopadhyay
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO 65211, USA; (N.Z.); (C.M.D.); (B.C.); (C.M.); (K.G.); (S.G.)
| | - Matthew R. Maschmann
- Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
- Correspondence:
| |
Collapse
|