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Jia X, Xu W, Ye Z, Wang Y, Dong Q, Wang E, Li D, Wang J. Functionalized Graphene@Gold Nanostar/Lipid for Pancreatic Cancer Gene and Photothermal Synergistic Therapy under Photoacoustic/Photothermal Imaging Dual-Modal Guidance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003707. [PMID: 32851808 DOI: 10.1002/smll.202003707] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/11/2020] [Indexed: 06/11/2023]
Abstract
Nanomaterial-based pancreatic cancer treatment has received widespread attention and rapid development in the past few years. The major challenges include the poor combination of diagnosis and therapy, the difficulty in targeting therapy from the root and the unsatisfactory antitumor efficiency, which is accompanied by a great risk of relapse and metastasis. In this work, a positively charged lipid bilayer membrane is coated on reduced graphene oxide@gold nanostar (rGO@AuNS) for photoacoustic/photothermal dual-modal imaging-guided gene/photothermal synergistic therapy of pancreatic cancer. In addition, the cross-linking of folic acid on the surface of rGO@AuNS-lipid can specifically bind after recognizing folic acid receptors on the surface of cancer cells, and greatly improve the targeting ability of the nanomaterial and the performance of imaging diagnosis by receptor-mediated endocytosis. Moreover, the photothermal and gene (targeting G12V mutant K-Ras gene) synergistic therapy shows outstanding anticancer efficacy for pancreatic cancer tumor bearing mice, and it is noteworthy that the treatment groups have anti-liver metastasis of pancreatic cancer.
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Affiliation(s)
- Xiuna Jia
- College of Chemistry, Jilin University, Changchun, Jilin, 130012, P. R. China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Weiguo Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Zhikai Ye
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Yuling Wang
- ARC Centre of Excellence for Nanoscale BioPhotonics, Department of Molecular Sciences Macquarie University, Sydney, 2109, Australia
| | - Qing Dong
- College of Chemistry, Jilin University, Changchun, Jilin, 130012, P. R. China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Erkang Wang
- College of Chemistry, Jilin University, Changchun, Jilin, 130012, P. R. China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Dan Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China
| | - Jin Wang
- Department of Chemistry and Physics, State University of New York at Stony Brook, Stony Brook, NY, 11794-3400, USA
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Slepchenkov MM, Glukhova OE. Improving the Sensory Properties of Layered Phospholipid-Graphene Films Due to the Curvature of Graphene Layers. Polymers (Basel) 2020; 12:E1710. [PMID: 32751546 PMCID: PMC7465900 DOI: 10.3390/polym12081710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 12/21/2022] Open
Abstract
This article is devoted to the in silico study of the sensory properties of mono- and bilayer phospholipid-graphene films with planar and curved graphene sheets. The DPPC (dipalmitoylphosphatidylcholine) molecules are considered as phospholipid structures. These molecules are part of lipid bilayers, liposomes and cell membranes. To find a way to improve the sensory properties of phospholipid-graphene films, we studied the effect of the curvature of the graphene sheet on the charge transfer and electrical conductivity of the films. The distribution of the electron charge density over the film atoms was calculated using the self-consistent-charge density-functional tight-binding method (SCC-DFTB). The calculation of the current through phospholipid-graphene films was carried out within the framework of the Landauer-Buttiker formalism using the Keldysh nonequilibrium Green function technique. As a result of the calculations, the optimal configuration of the arrangement of DPPC molecules between two graphene layers was established. This configuration provides the maximum possible increase in current to 1 μA at low voltages of ~0.2 V and is achieved for curved graphene with a radius of curvature of ~2.7 nm at individual points of graphene atomic network.
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Affiliation(s)
- Michael M Slepchenkov
- Department of Physics, Saratov State University, Astrakhanskaya Street 83, 410012 Saratov, Russia
| | - Olga E Glukhova
- Department of Physics, Saratov State University, Astrakhanskaya Street 83, 410012 Saratov, Russia
- Laboratory of Biomedical Nanotechnology, I.M. Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
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Williams AT, Donno R, Tirelli N, Dryfe RAW. Biofunctional few-layer metal dichalcogenides and related heterostructures produced by direct aqueous exfoliation using phospholipids. RSC Adv 2019; 9:37061-37066. [PMID: 35539078 PMCID: PMC9075593 DOI: 10.1039/c9ra07764b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/06/2019] [Indexed: 11/21/2022] Open
Abstract
We report a novel, inexpensive and green method for preparing aqueous dispersions of various biofunctional transition-metal dichalcogenides (MoS2, WS2, TiS2 and MoSe2) and their related heterostructures directly via ultrasonic exfoliation mediated by the presence of phospholipids. The dispersions predominantly consist of few-layer flakes coated with 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC), as confirmed by Raman, photoluminescence and X-ray photoelectron spectroscopies. The phospholipid coating renders the flakes biofunctional, which coupled with the unique properties of transition-metal dichalcogenides and their heterostructures, suggests this method will have great potential in biological applications. We report a method for preparing aqueous dispersions of biofunctional transition-metal dichalcogenides (MoS2, WS2, TiS2 and MoSe2) and their related heterostructures directly via ultrasonic exfoliation mediated by the presence of phospholipids.![]()
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Affiliation(s)
| | - Roberto Donno
- Laboratory of Polymers and Biomaterials
- Fondazione Istituto Italiano di Tecnologia
- Genoa
- Italy
| | - Nicola Tirelli
- Laboratory of Polymers and Biomaterials
- Fondazione Istituto Italiano di Tecnologia
- Genoa
- Italy
| | - Robert A. W. Dryfe
- School of Chemistry
- University of Manchester
- Manchester
- UK
- National Graphene Institute
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