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Zhou F, Li H, Liu Y, Deng H, Rong J, Zhao J. Hyaluronan derivative decorated calcium carbonate nanoparticle as a potential platform for breast cancer synergistic therapy via blood coagulation and drug delivery. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Gan S, Dong J, Li X, Wang J, Chen L, Wang Y, Feng S, Li H, Zhou G. Smart "Thrombus": Self-Localizing UCST-Type Microcage. ACS Macro Lett 2023; 12:320-324. [PMID: 36802516 DOI: 10.1021/acsmacrolett.2c00731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Embolization is often used to block blood supply for controlling the growth of fibroids and malignant tumors, but limited by embolic agents lacking spontaneous targeting and post-treatment removal. So we first adopted nonionic poly(acrylamide-co-acrylonitrile) with an upper critical solution temperature (UCST) to build up self-localizing microcages by inverse emulsification. The results showed that these UCST-type microcages behaved with the appropriate phase-transition threshold value around 40 °C, and spontaneously underwent an expansion-fusion-fission cycle under the stimulus of mild temperature hyperthermia. Given the simultaneous local release of cargoes, this simple but smart microcage is expected to act as a multifunctional embolic agent for tumorous starving therapy, tumor chemotherapy, and imaging.
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Affiliation(s)
- Shenglong Gan
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- Department of Chemistry, City University of Hong Kong, Hong Kong 999077, P. R. China
| | - Jiao Dong
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Xian Li
- Department of Radiology, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou 510120, P. R. China
| | - Juan Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Longbin Chen
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Yao Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Shiting Feng
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, P. R. China
| | - Hao Li
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
| | - Guofu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South P. R. China Academy of Advanced Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
- National Center for International Research on Green Optoelectronics, South P. R. China Normal University, Guangzhou 510006, P. R. China
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Gluing blood into gel by electrostatic interaction using a water-soluble polymer as an embolic agent. Proc Natl Acad Sci U S A 2022; 119:e2206685119. [PMID: 36215508 PMCID: PMC9586266 DOI: 10.1073/pnas.2206685119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Liquid embolic agents are widely used for the endovascular embolization of vascular conditions. However, embolization based on phase transition is limited by the adhesion of the microcatheter to the embolic agent, use of an organic solvent, unintentional catheter retention, and other complications. By mimicking thrombus formation, a water-soluble polymer that rapidly glues blood into a gel without triggering coagulation was developed. The polymer, which consists of cationic and aromatic residues with adjacent sequences, shows electrostatic adhesion with negatively charged blood substances in a physiological environment, while common polycations cannot. Aqueous polymer solutions are injectable through clinical microcatheters and needles. The formed blood gel neither adhered to the catheter nor blocked the port. Postoperative computed tomography imaging showed that the polymer can block the rat femoral artery in vivo and remain at the injection site without nontarget embolization. This study provides an alternative for the development of waterborne embolic agents.
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