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Qin B, Yang W, Xu J, Wang X, Li X, Li C, Gao Y, Wang QE. Photo-Actuation of Liquid Crystalline Elastomer Materials Doped with Visible Absorber Dyes under Quasi-Daylight. Polymers (Basel) 2019; 12:polym12010054. [PMID: 31906200 PMCID: PMC7023533 DOI: 10.3390/polym12010054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/20/2019] [Accepted: 12/24/2019] [Indexed: 11/26/2022] Open
Abstract
We studied the effect of visible absorber dyes on the photo-actuation performances of liquid crystalline elastomer (LCE) materials under quasi-daylight irradiation. The dye-doped LCE materials were prepared through infiltrating visible absorber dyes into a polysiloxane-based LCE matrix based on its solvent-swollen characteristic. They demonstrated well absorption properties in visible spectrum range and performed strong actuation upon the irradiation from quasi-daylight source, thus indicating that the presence of visible absorber dyes effectively sensitized the LCE materials to light irradiation since the light energy was absorbed by the dyes and then converted into heat to trigger the phase change of LCE matrix. The photo-actuation properties of dye-doped LCE materials with different visible absorber dyes, varied dye contents, and irradiation intensities were investigated. It was shown that the visible absorber dyes with different absorption bands created different photo-actuation performances of LCE materials, the one whose absorption band is near the intensity peak position of quasi-daylight spectrum created the optimum photo-actuation performance. The result disclosed a valuable light utilization way for photo-controlled LCE materials since it revealed that a light-absorbing dye, whose absorption band is in the high intensity region of light spectrum, is capable of effectively utilizing light energy to drive the actuation of LCE materials.
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Affiliation(s)
- Ban Qin
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, China; (B.Q.); (J.X.); (X.W.)
| | - Wenlong Yang
- Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, China;
| | - Jiaojiao Xu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, China; (B.Q.); (J.X.); (X.W.)
| | - Xiuxiu Wang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, China; (B.Q.); (J.X.); (X.W.)
| | - Xiangman Li
- Women and Children Health Centre of Xiangfang District, Harbin 150040, China;
| | - Chensha Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, China; (B.Q.); (J.X.); (X.W.)
- Correspondence: (C.L.); (Q.-eW.); Tel.: +86-451-8660-8610 (C.L.); +86-10-6898-7110 (Q.-eW.)
| | - Yachen Gao
- Key Laboratory of Electronics Engineering, College of Heilongjiang Province, Heilongjiang University, Harbin 150080, China;
| | - Qiao-e Wang
- Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing 100048, China
- Correspondence: (C.L.); (Q.-eW.); Tel.: +86-451-8660-8610 (C.L.); +86-10-6898-7110 (Q.-eW.)
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Cresta V, Romano G, Kolpak A, Zalar B, Domenici V. Nanostructured Composites Based on Liquid-Crystalline Elastomers. Polymers (Basel) 2018; 10:E773. [PMID: 30960698 PMCID: PMC6403803 DOI: 10.3390/polym10070773] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 12/17/2022] Open
Abstract
Liquid-crystalline elastomers (LCEs) are the object of many research investigations due to their reversible and controllable shape deformations, and their high potential for use in the field of soft robots and artificial muscles. This review focuses on recent studies about polymer composites based on LCEs and nanomaterials having different chemistry and morphology, with the aim of instilling new physical properties into LCEs. The synthesis, physico-chemical characterization, actuation properties, and applications of LCE-based composites reported in the literature are reviewed. Several cases are discussed: (1) the addition of various carbon nanomaterials to LCEs, from carbon black to carbon nanotubes, to the recent attempts to include graphene layers to enhance the thermo-mechanic properties of LCEs; (2) the use of various types of nanoparticles, such as ferroelectric ceramics, gold nanoparticles, conductive molybdenum-oxide nanowires, and magnetic iron-oxide nanoparticles, to induce electro-actuation, magnetic-actuation, or photo-actuation into the LCE-based composites; (3) the deposition on LCE surfaces of thin layers of conductive materials (i.e., conductive polymers and gold nanolayers) to produce bending actuation by applying on/off voltage cycles or surface-wrinkling phenomena in view of tunable optical applications. Some future perspectives of this field of soft materials conclude the review.
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Affiliation(s)
- Vanessa Cresta
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, 56124 Pisa, Italy.
| | - Giuseppe Romano
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USA.
| | - Alexej Kolpak
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USA.
| | - Boštjan Zalar
- Department of Condensed Matter Physics, Jozef Stefan Institute, Jamova Cesta 39, SI 1000 Ljubljana, Slovenia.
| | - Valentina Domenici
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, 56124 Pisa, Italy.
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Tang X, Tan L, Shi K, Peng J, Xiao Y, Li W, Chen L, Yang Q, Qian Z. Gold nanorods together with HSP inhibitor-VER-155008 micelles for colon cancer mild-temperature photothermal therapy. Acta Pharm Sin B 2018; 8:587-601. [PMID: 30109183 PMCID: PMC6089863 DOI: 10.1016/j.apsb.2018.05.011] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/18/2018] [Accepted: 05/18/2018] [Indexed: 02/05/2023] Open
Abstract
Enhancing the heat-sensitivity of tumor cells provides an alternative solution to maintaining the therapeutic outcome of photothermal therapy (PTT). In this study, we constructed a therapeutic system, which was composed of methoxy-polyethylene-glycol-coated-gold-nanorods (MPEG-AuNR) and VER-155008-micelles, to evaluate the effect of VER-155008 on the sensitivity of tumor cells to heat, and further investigate the therapeutic outcome of MPEG-AuNR mediated PTT combined with VER-155008- micelles. VER-155008- micelles down-regulate the expression of heat shock proteins and attenuate the heat-resistance of tumor cell. The survival of HCT116 cells treated with VER-155008- micelles under 45 °C is equal to that treated with high temperature hyperthermia (55 °C) in vitro. Furthermore, we proved either the MPEG-AuNR or VER-155008- micelles can be accumulate in the tumor site by photoacoustic imaging and fluorescent imaging. In vivo anti-cancer evaluation showed that tumor size remarkably decreased (smaller than 100 mm3 or vanished) when treated with combing 45 °C mild PTT system, which contrasted to the tumor size when treated with individual 45 °C mild PTT (around 500 nm3) or normal saline as control (larger than 2000 nm3). These results proved that the VER-155008- micelles can attenuate the heat-resistance of tumor cells and enhance the therapeutic outcome of mild-temperature photothermal therapy.
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Affiliation(s)
- Xichuan Tang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center, Chengdu 610041, China
| | - Liwei Tan
- College of Medicine, Southwest Jiaotong University, Chengdu 610031, China
| | - Kun Shi
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center, Chengdu 610041, China
| | - Jinrong Peng
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center, Chengdu 610041, China
| | - Yao Xiao
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center, Chengdu 610041, China
| | - Wenting Li
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Lijuan Chen
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center, Chengdu 610041, China
| | - Qian Yang
- School of Pharmacy, Key College Laboratory of Sichuan Province for Specific Structure of Small Molecule Drugs, Chengdu Medical College, Chengdu 610500, China
| | - Zhiyong Qian
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center, Chengdu 610041, China
- Correspondence address. Tel./fax: +86 28 85501986.
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Han L, Ma H, Zhu S, Liu P, Shen H, Yang L, Tan R, Huang W, Li Y. Effect of Topology and Composition on Liquid Crystal Order and Self-Assembly Performances Driven by Asynchronously Controlled Grafting Density. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01952] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Li Han
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Hongwei Ma
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Siqi Zhu
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Pibo Liu
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Heyu Shen
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Lincan Yang
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Rui Tan
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Wei Huang
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Yang Li
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
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Maity S, Wu WC, Tracy JB, Clarke LI, Bochinski JR. Nanoscale steady-state temperature gradients within polymer nanocomposites undergoing continuous-wave photothermal heating from gold nanorods. NANOSCALE 2017; 9:11605-11618. [PMID: 28770914 DOI: 10.1039/c7nr04613h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Anisotropically-shaped metal nanoparticles act as nanoscale heaters via excitation of a localized surface plasmon resonance, utilizing a photothermal effect which converts the optical energy into local heat. Steady-state temperatures within a polymer matrix embedded with gold nanorods undergoing photothermal heating using continuous-wave excitation are measured in the immediate spatial vicinity of the nanoparticle (referred to as the local temperature) from observing the rate of physical rotation of the asymmetric nanoparticles within the locally created polymer melt. Average temperatures across the entire (mostly solid) sample (referred to as the global temperature) are simultaneously observed using a fluorescence method from randomly dispersed molecular emitters. Comparing these two independent measurements in films having varying concentrations of nanorods reveals the interplay between the local and global temperatures, clearly demonstrating the capability of these material samples to sustain large steady-state spatial temperature gradients when experiencing continuous-wave excitation photothermal heating. These results are discussed quantitatively. Illustrative imaging studies of nanofibers under photothermal heating also support the presence of a large temperature gradient. Photothermal heating in this manner has potential utility in creating unique thermal processing conditions for outcomes such as driving chemical reactions, inducing crystallinity changes, or enhancing degradation processes in a manner unachievable by conventional heating methods.
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Affiliation(s)
- Somsubhra Maity
- Department of Physics, North Carolina State University, Raleigh, NC 27695-8202, USA.
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Liu L, Liu MH, Deng LL, Lin BP, Yang H. Near-Infrared Chromophore Functionalized Soft Actuator with Ultrafast Photoresponsive Speed and Superior Mechanical Property. J Am Chem Soc 2017; 139:11333-11336. [DOI: 10.1021/jacs.7b06410] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Li Liu
- School of Chemistry and Chemical
Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical
Research, Jiangsu Key Laboratory for Science and Application of Molecular
Ferroelectrics, State Key Laboratory of Bioelectronics, Southeast University, Nanjing 211189, China
| | - Mei-Hua Liu
- School of Chemistry and Chemical
Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical
Research, Jiangsu Key Laboratory for Science and Application of Molecular
Ferroelectrics, State Key Laboratory of Bioelectronics, Southeast University, Nanjing 211189, China
| | - Lin-Lin Deng
- School of Chemistry and Chemical
Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical
Research, Jiangsu Key Laboratory for Science and Application of Molecular
Ferroelectrics, State Key Laboratory of Bioelectronics, Southeast University, Nanjing 211189, China
| | - Bao-Ping Lin
- School of Chemistry and Chemical
Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical
Research, Jiangsu Key Laboratory for Science and Application of Molecular
Ferroelectrics, State Key Laboratory of Bioelectronics, Southeast University, Nanjing 211189, China
| | - Hong Yang
- School of Chemistry and Chemical
Engineering, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical
Research, Jiangsu Key Laboratory for Science and Application of Molecular
Ferroelectrics, State Key Laboratory of Bioelectronics, Southeast University, Nanjing 211189, China
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Liu X, Yao J, Luo J, Duan X, Yao Y, Liu T. Effect of Growth Temperature on Tailoring the Size and Aspect Ratio of Gold Nanorods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7479-7485. [PMID: 28696699 DOI: 10.1021/acs.langmuir.7b01635] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The influence of temperature on the gold nanorod synthesis process and its effect on tailoring the size and aspect ratio have not been fully investigated and understood. A comprehensive study, involving SEM and TEM microscopy, Vis-NIR spectroscopy, quantitative data analysis and theoretical simulation, is performed to understand the effect of growth temperature on size, aspect ratio, and shape uniformity of gold nanorods that are synthesized by a recently developed binary-surfactant seed-mediated AuNR synthesis method. It has been demonstrated that the temperature can be used as a simple processing parameter to viably tailor the size and aspect ratio of AuNRs as well as the corresponding surface plasmon resonance behavior. The temperature coefficients for length, diameter, and aspect ratio have been, respectively, determined to be 3.5 nm/°C, 3.9 nm/°C, and -0.18/°C. With a combination of controlling temperature and formulation, the binary surfactant seed-mediated AuNR synthesis method expects to be a convenient way for producing gold nanorods with a large range of size and aspect ratio suitable for different applications.
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Affiliation(s)
- Xiaowei Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Soochow, People's Republic of China
| | - Jingwen Yao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Soochow, People's Republic of China
| | - Jiangjiang Luo
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Soochow, People's Republic of China
| | - Xiaoshuang Duan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Soochow, People's Republic of China
| | - Yanbo Yao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Soochow, People's Republic of China
| | - Tao Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Soochow, People's Republic of China
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