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Zhou Y, Li Y, Liu J, Zhang Y, Cao X, Wang S, Duan Z, Yuan Z, Chen Y, Meng Y, Lv M, Sun J, Liu X. Antiadhesion Superhydrophobic Bipolar Electrocoagulation Tweezers with High Conductivity and Stability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10593-10600. [PMID: 37486199 DOI: 10.1021/acs.langmuir.3c01202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Irregularly shaped electrosurgical devices face significant challenges in electrosurgery due to serious blood and tissue adhesion. Superhydrophobic surfaces inspired by lotus leaves have attracted great attention for their promising antiadhesion properties. However, there are few methods for efficiently preparing superhydrophobic irregularly shaped bipolar electrocoagulation tweezers (BETs). Herein, we propose a simple and environmentally friendly method to fabricate antiadhesion superhydrophobic surfaces on BETs. The superhydrophobicity is obtained by combining laser texturing to form rough structures and low surface energy modification via stearic acid. The formation mechanism of superhydrophobicity is investigated through analyzing microstructures and chemical compositions by scanning electron microscopy, white-light interferometry, and X-ray photoelectron spectroscopy. The functionalized BET surfaces exhibit excellent water repellency with a contact angle of 159.6°, a roll-off angle of 1°, and a surface energy of 14.3 mJ/m2, possessing excellent antiadhesion properties against blood, chicken breast tissue, and pork tissue. Compared with ordinary BETs, the mass of blood, pork tissue, and chicken breast tissue adhered to the superhydrophobic BET is reduced by 97.70, 70.34, and 75.35%, respectively. Moreover, the superhydrophobic BETs have excellent conductivity and maintain good antiadhesion properties after low-temperature storage for 2 weeks, after being impacted by sand and blood and 30 cycles of tape peeling tests. With outstanding antiadhesion performance, the superhydrophobic BET may have promising application prospects in the electrosurgery field.
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Affiliation(s)
- Yuyang Zhou
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yuheng Li
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jiyu Liu
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yonghui Zhang
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Xinming Cao
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Shuaishuai Wang
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Zhenjing Duan
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Zizhen Yuan
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yang Chen
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yilan Meng
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Mingchuan Lv
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jing Sun
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
| | - Xin Liu
- State Key Laboratory of High-Performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, P. R. China
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Roy D, Naskar B, Bala T. Exploring Langmuir-Blodgett technique to investigate effect of various subphase conditions on monolayers formed by amphiphilic block co-polymers tetronic 701 and tetronic 90R4. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li J, Du Y, Su H, Cheng S, Zhou Y, Jin Y, Qi XR. Interfacial properties and micellization of triblock poly(ethylene glycol)-poly( ε-caprolactone)-polyethyleneimine copolymers. Acta Pharm Sin B 2020; 10:1122-1133. [PMID: 32642417 PMCID: PMC7332608 DOI: 10.1016/j.apsb.2020.01.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/24/2019] [Accepted: 11/11/2019] [Indexed: 01/30/2023] Open
Abstract
This study aimed to explore the link between block copolymers' interfacial properties and nanoscale carrier formation and found out the influence of length ratio on these characters to optimize drug delivery system. A library of diblock copolymers of PEG-PCL and triblock copolymers with additional PEI (PEG-PCL-PEI) were synthesized. Subsequently, a systematic isothermal investigation was performed to explore molecular arrangements of copolymers at air/water interface. Then, structural properties and drug encapsulation in self-assembly were investigated with DLS, SLS and TEM. We found the additional hydrogen bond in the PEG-PCL-PEI contributes to film stability upon the hydrophobic interaction compared with PEG-PCL. PEG-PCL-PEI assemble into smaller micelle-like (such as PEG-PCL4006-PEI) or particle-like structure (such as PEG-PCL8636-PEI) determined by their hydrophilic and hydrophobic block ratio. The distinct structural architectures of copolymer are consistent between interface and self-assembly. Despite the disparity of constituent ratio, we discovered the arrangement of both chains guarantees balanced hydrophilic-hydrophobic ratio in self-assembly to form stable construction. Meanwhile, the structural differences were found to have significant influence on model drugs incorporation including docetaxel and siRNA. Taken together, these findings indicate the correlation between molecular arrangement and self-assembly and inspire us to tune block compositions to achieve desired nanostructure and drug loading.
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Key Words
- AFM, atomic force microscope
- Amin, critical molecular area
- Block copolymers
- CMC, critical micelle concentration
- DLS, dynamic light scattering
- DTX, docetaxel
- GPC, gel permeation chromatography
- LB, Langmuir–Blodgett
- Langmuir films
- Molecular arrangement
- Nagg, polymer aggregation number
- Nanostructure
- Np, nano-assembly numbers
- PCL, poly(ε-caprolactone)
- PDI, polydispersity
- PEG, poly(ethylene glycol)
- PEI, polyethyleneimine
- Rg, gyration radius
- Rh, hydrodynamic radius
- SLS, static light scattering
- Self-assembly
- TEM, transmission electron microscope
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Affiliation(s)
- Ji Li
- Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yitian Du
- Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Haitao Su
- Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Shixuan Cheng
- Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yanxia Zhou
- Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yiguang Jin
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Xian-Rong Qi
- Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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Thompson AL, Ball AN, Love BJ. Controlled Release Characteristics of Aqueous PEO‐PPO‐PEO Micelles With Added Malachite Green, Erythrosin, and Cisplatin Determined by UV–Visible Spectroscopy. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Andre L. Thompson
- Department of Materials Science and Engineering University of Michigan Ann Arbor Michigan USA 48109
| | - Ashley N. Ball
- Department of Materials Science and Engineering University of Michigan Ann Arbor Michigan USA 48109
| | - Brian J. Love
- Department of Materials Science and Engineering University of Michigan Ann Arbor Michigan USA 48109
- Department of Biomedical Engineering University of Michigan Ann Arbor Michigan USA 48109
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Li S, Guo J, Patel RA, Dadlani AL, Leblanc RM. Interaction between graphene oxide and Pluronic F127 at the air-water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:5742-5748. [PMID: 23635085 DOI: 10.1021/la401056t] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Triblock copolymer Pluronic F127 (PF127) has previously been demonstrated to disperse graphene oxide (GO) in electrolyte solution and block the hydrophobic interaction between GO and l-tryptophan and l-tyrosine. However, the nature of this interaction between PF127 and GO remains to be characterized and elucidated. In the present study, we aimed to characterize and understand the interaction between GO and PF127 using a 2-dimensional Langmuir monolayer methodology at the air-water interface by surface pressure-area isotherm measurement, stability, adsorption, and atomic force microscopy (AFM) imaging. Based on the observation of surface pressure-area isotherms, adsorption, and stability of PF127 and PF127/GO mixture at the air-water interface, GO is suggested to change the conformation of PF127 at the air-water interface and also drag PF127 from the interface to the bulk subphase. Atomic force microscopy (AFM) image supports this assumption, as GO and PF127 can be observed by spreading the subphase solution outside the compressing barriers, as shown in the TOC graphic.
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Affiliation(s)
- Shanghao Li
- Department of Chemistry, University of Miami, Coral Gables, Florida 33146, United States
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Naskar B, Ghosh S, Moulik SP. Solution behavior of normal and reverse triblock copolymers (pluronic L44 and 10R5) individually and in binary mixture. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7134-7146. [PMID: 22506970 DOI: 10.1021/la3000729] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Solution properties of pluronics L44 or L [(PEO)(10)(PPO)(23)(PEO)(10)] and 10R5 or R [(PPO)(8)(PEO)(22)(PPO)(8)] were studied individually as well in their binary mixtures in aqueous medium. The critical micelle concentration (CMC), critical micelle temperature, and cloud point (CP) were determined. Ideal and nonideal behaviors of their mixtures in the formation of CMC and CP were observed; the energetics of the studied processes were determined. Spectrophotometry, isothermal titration calorimetry and dynamic light scattering (DLS) methods were used for evaluations. Morphologies of the dispersed L, R, and their mixtures along with their polydispersities were determined from DLS measurements. Atomic force microscopy was also employed. The interfacial properties of L and R were investigated forming Langmuir monolayers in a surface balance. The surface pressures (π) generated by the compounds were moderate, the area per molecule was higher for R than L. R has shown antibacterial activity against both gram positive and gram negative bacteria whereas L was inactive in this respect.
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Affiliation(s)
- Bappaditya Naskar
- Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700032, India
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Micellization and clouding phenomenon of amphiphilic antidepressant drug amitriptyline hydrochloride: Effect of KCl. Colloids Surf B Biointerfaces 2012; 92:203-8. [DOI: 10.1016/j.colsurfb.2011.11.041] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Revised: 11/21/2011] [Accepted: 11/22/2011] [Indexed: 12/22/2022]
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