Synthesis and characterization of thieno-isoindigo derivative-based near-infrared conjugated polymer for ambipolar field-effect transistors and photothermal conversion

Zhang, Guobing; Dai, Yanrong; Wang, Dong; Liu, Yu; Lu, Hongbo; Qiu, Longzhen; Cho, Kilwon

doi:10.1016/j.dyepig.2017.07.073

Cited by 12 publications

(3 citation statements)

References 38 publications

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“…In the six lasers’ on/off cycles, the maximum temperature that the gel could reach had no decreasing trend and the ΔT fluctuated between 16 and 17.5 °C ( Figure 4 d); therefore, the COL hydrogel has good photothermal stability. Moreover, the photothermal conversion efficiency of the COL hydrogel was calculated to be 23.7% according to Korgel’s method ( Figure 4 e), which is higher than that of nanogels made of poly(acrylic acid-b-N-isopropylamide-b-acrylic acid/polypyrrole (20.2%) [ 37 ], PBIPDI-TT (a new thieno-isoindigo derivative dye and its D−A polymer; 20.3%) [ 38 ], and polyethylene glycol-coated copper nanowires (12.5%) [ 39 ]. The photothermal conversion data experimentally proved that the COL hydrogel could be used as a PTT platform.…”

Section: Resultsmentioning

confidence: 99%

Design of Biocompatible Chitosan/Polyaniline/Laponite Hydrogel with Photothermal Conversion Capability

Zhang

Yang

et al. 2022

Biomolecules

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In recent years, multifunctional hydrogels have received a great deal of attention because they are biocompatible and can mimic the extracellular matrix. Herein, we prepared hydrogels of biocompatible cross-linked networks with photothermal properties. In this study, a chitosan/polyaniline/laponite (COL) hydrogel with photothermal conversion capability was designed. Polyaniline was firstly grafted onto chitosan and its solution was mixed with oxidized dextran, which was then cross-linked into a hydrogel via a Schiff base reaction. Furthermore, an aluminosilicate clay material, laponite (LAP), was incorporated into the hydrogel. The swelling ratio of the COL hydrogel in various solutions was greater than 580%, and it showed good degradation ability (the mass–loss ratio was over 45% after 28 days). This composite hydrogel was demonstrated to have good photothermal conversion properties and biocompatibility at both the cell (cell viability was over 97%) and animal levels. The COL hydrogel showed a photothermal conversion efficiency of 23.7% under the irradiation of a near-infrared laser. Coupled with the osteogenic differentiation-inducing potential of LAP, the COL hydrogel has the potential to kill tumors via hyperthermia or serve as scaffolds for bone tissue regeneration.

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Section: Resultsmentioning

confidence: 99%

Design of Biocompatible Chitosan/Polyaniline/Laponite Hydrogel with Photothermal Conversion Capability

Zhang

Yang

et al. 2022

Biomolecules

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“…Distinctly, two characteristic absorption peaks were detected at 480–580 nm and 600–1350 nm, which extends from the NIR‐I to the NIR‐II biological window. [ 19 ] What gratifying is the maximum absorption peak of PBTPBFTDPP was located at the wavelength of 1064 nm. These results showed that our as‐prepared PBTPBFTDPP polymer has a potential for PTT under NIR‐II laser irradiation.…”

Section: Resultsmentioning

confidence: 99%

Genetically Engineered Cell Membrane Modified Conjugated Polymer Nanoparticles for NIR‐II Photothermal Therapy

Wei

Xin

Yang

et al. 2022

Adv Materials Inter

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Tumor‐selective near infrared‐induced photothermal therapy is a successful approach for ablation of malignant and cancerous cells. In the NIR region, tissue penetration depth in the near‐infrared second region (NIR‐II, 1000–1700 nm) is deeper than that of the traditional near‐infrared first region (NIR‐I, 700–900 nm) for the lower scattering and absorption. However, there are few photothermal conversion agents (PCAs) in the NIR‐II. And these PCAs are quickly identified by the immune system and rapidly cleared by the reticuloendothelial system (RES), leading to low accumulation in tumor, which prevents further advanced clinical practice. In this work, the conjugated polymer, PBTPBFTDPP, is prepared and assembled into nanoparticles (SPN). Then, the genetically engineered cell membranes are coated on the surface of SPN to obtain the positive targeting ability (SPN‐TF). The obtained SPN‐TF nanoparticles exhibit an excellent photothermal conversion ability, predominant targeting efficiency, and superb photothermal therapy for anticancer both in vitro and in vivo. These works will inspire more translational work on SPN for future clinical applications.

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“…38 Yet, inferior to NIR-I absorbers, the existing NIR-II photothermal materials are mostly based on donoracceptor conjugated polymers or metallic oxides, which are rather difficult to be endowed with stimuli-responsive subgroups. [39][40][41][42][43][44] Therefore, although there are some interesting research reports focusing on intelligent NIR-I absorbers, there is no example of intelligent NIR-II absorbers with a stimuliresponsive photothermal conversion ability, as far as we know.…”

Section: Introductionmentioning

confidence: 99%

Acid-triggered two-stage superlarge redshift absorption for turn-on type photothermal conversion at the first and second near-infrared window

Wang

et al. 2023

J. Mater. Chem. A

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Synthesis and characterization of thieno-isoindigo derivative-based near-infrared conjugated polymer for ambipolar field-effect transistors and photothermal conversion

Cited by 12 publications

References 38 publications

Design of Biocompatible Chitosan/Polyaniline/Laponite Hydrogel with Photothermal Conversion Capability

Design of Biocompatible Chitosan/Polyaniline/Laponite Hydrogel with Photothermal Conversion Capability

Genetically Engineered Cell Membrane Modified Conjugated Polymer Nanoparticles for NIR‐II Photothermal Therapy

Acid-triggered two-stage superlarge redshift absorption for turn-on type photothermal conversion at the first and second near-infrared window

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