Good Dispersion Stability Research Articles

Polyimide/fluorinated silica composite films with low dielectric constant and low water absorption

In this study, KMnO4 was applied as an etchant to partially decompose the silica microspheres into mesoporous structures. 1H,1H,2H,2H-perfluorodecyltriethoxysilane was grafted onto the surface of the hollow silica. A fluorinated silica/polyimide hybrid material was prepared. Meanwhile, the influence of fluorinated silica on the dielectric property and moisture absorption property of the hybrid material was discussed. It is found that the fluorinated silica can lower the dielectric constant and hygroscopicity of the hybrid film. The fluorinated silica is characterized by strong hydrophobicity, good dispersibility, and good thermal stability. Even at a very low filling level of only 2 wt%, the dielectric constant of the polyimide hybrid is significantly reduced to 2.61 without sacrificing thermal stability. The water absorption rate of the polyimide hybrid film is reduced from approximately 3.1% to 2.1 wt%. Moreover, this provides a new idea for reducing the dielectric and water absorption properties of materials.

Heterostructured rGO/MoS2 nanocomposites toward enhancing lubrication function of industrial gear oils

Reduced graphene oxide (rGO)/molybdenum disulfide (MoS2) heterostructure nanosheets (rGO-MoS2-1) were synthesized via vertically growing of MoS2 on rGO skeleton using a facile one-pot hydrothermal method. Toward high-performance lubrication additive, the rGO-MoS2-1 in industrial gear oil shows extraordinary dispersity and stability because its steric hindrance effect restrains the aggregation and settling tendency. More importantly, its introduction can significantly reduce the friction (∼16.7%) and wear (up to 80%) under the sliding contact. The characterization and analysis on the worn surfaces reveal that good dispersion stability, the formation of rGO-MoS2-based lubrication protective film, and the lower shear strength induced by the inherent lattice mismatch between rGO and MoS2 are the key factors in the friction reduction and protection the tribo-interfaces against wear.

Synthesis and characterization of a novel multi-functionalized reduced graphene oxide as a pH-sensitive drug delivery material and a photothermal candidate

In this work, we describe a simple and effective method for the synthesis of a novel multi-functionalized reduced graphene oxide (rGO/DA/Au NPs/DOX) through the successive reaction of graphene oxide (GO) with dopamine (DA), HAuCl4/NaBH4 and doxorubicin (DOX) under mild conditions. The rGO/DA/Au NPs/DOX hybrid nanomaterial was characterized by Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray (EDS), X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), UV–visible absorption analyses, dispersion stability, zeta potential and dynamic light scattering (DLS) analysis. A good dispersion stability of rGO/DA/Au NPs/DOX material was observed with an average size of about 75 nm. The DOX loading capacity of rGO/DA/Au NPs was determined to be 0.852 mg/mg at an initial DOX concentration of 0.171 mg/mL. Then, the rGO/DA/Au NPs/DOX was explored for DOX release under various pH values of 9.4, 7.4 and 5.4. It was found that the rate of DOX release from the rGO/DA/Au NPs/DOX hybrid nanomaterial was pH-dependent with a DOX release of 67% under acidic (pH = 5.4) conditions. Due to the different DOX release rates under different pH values, the multi-functionalized rGO can be used as a suitable candidate material for intelligent drug release. The photothermal properties of rGO/DA/Au NPs/DOX hybrid nanomaterial were assessed under simulated solar sun irradiation. A rapid increase of the temperature was recorded upon irradiation, suggesting that rGO/DA/Au NPs/DOX hybrid material has good potential as a new photothermal agent.

Application of a cationic amylose derivative loaded with single-walled carbon nanotubes for gene delivery therapy and photothermal therapy of colorectal cancer.

Single‐walled carbon nanotubes (SWNTs) are cylindrical graphitic helix molecules that exhibit superb mechanical and physical properties. Many polymers, such as polyethylene glycol and glycated chitosan, have been used to modify SWNTs to enhance the stability and biocompatibility of delivery systems; thus, a novel modification for SWNTs with amylose derivatives containing poly(L‐lysine) dendrons (ADP@SWNT) is developed. Infrared spectra analysis, 1H NMR analysis, circular dichroism spectra analysis and thermogravimetric analysis are used to characterize and confirm complex formation. The aqueous dispersion stability, cytotoxicity, gene transfection efficiency and photothermal effect of the complex are studied in vitro and in vivo. Results suggest that the ADP@SWNT complex is successfully synthesized with good water dispersion stability and pDNA transfection capacity. ADP@SWNT/TNFα inhibits tumor growth and metastasis both in vivo and in vitro, and the anti‐tumor effect is enhanced by NIR irradiation, suggesting its high potential for application in tumor therapy.

Performance of trans perovskite solar cells improved by finely adjusting the particle size of nickel oxide nanoparticles through pH value

As a low-cost, high stable hole transport material, nickel oxide has been widely used in inverted structure perovskite solar cells in recent years. By far, the most common method of preparing nickel oxide hole transport layers is spin-coating pre-prepared nickel oxide nanoparticles (NiO<sub><i>x</i></sub> NPs), which puts forward high requirement for the particle sizes and solution processing capabilities of NiO<sub><i>x</i></sub> NPs. In this work, the sizes of NiO<sub><i>x</i></sub> NPs are precisely controlled by adjusting the pH value of the system in the synthesis process, and high-quality nickel oxide hole transport layers are then prepared. The experimental results exhibit that the NiO<i>x</i> NPs with sizes of 5–10 nm are obtained at a pH value in a range of 9.5–9.8. More interestingly, the obtained NiO<sub><i>x</i></sub> NPs have good dispersion stability and can achieve long-term dispersion in aqueous solution. Furthermore, the structural composition analysis of NiO<sub><i>x</i></sub> NPs shows that the pH value of the synthesis system does not have a significant effect on the material structure nor composition of the NiO<sub><i>x</i></sub> NP. Surface morphological analysis shows that the NiO<sub><i>x</i></sub> film prepared by the pH-controlled NiO<sub><i>x</i></sub> NPs is rather dense and particularly flat with small surface roughness. It is also found that the film exhibits good hole extraction capability. We also fabricate an inverted perovskite solar cell based on the NiO<sub><i>x</i></sub> film. The device structure is ITO/NiO<sub><i>x</i></sub>/CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>/PC61BM/Bphen/Ag. It yields a good photovoltaic conversion efficiency (17.39%). In addition, the device is almost hysteresis-free. Our experimental results exhibit that the performance of perovskite solar cells can be effectively improved by precisely controlling the sizes of NiO<sub><i>x</i></sub> NPs through pH values. Our work is expected to facilitate the development of NiO<sub><i>x</i></sub>-based perovskite solar cells.

Performance of trans perovskite solar cells improved by finely adjusting the particle size of nickel oxide nanoparticles through pH value

As a low-cost, high stable hole transport material, nickel oxide has been widely used in inverted structure perovskite solar cells in recent years. By far, the most common method of preparing nickel oxide hole transport layers is spin-coating pre-prepared nickel oxide nanoparticles (NiO<sub><i>x</i></sub> NPs), which puts forward high requirement for the particle sizes and solution processing capabilities of NiO<sub><i>x</i></sub> NPs. In this work, the sizes of NiO<sub><i>x</i></sub> NPs are precisely controlled by adjusting the pH value of the system in the synthesis process, and high-quality nickel oxide hole transport layers are then prepared. The experimental results exhibit that the NiO<i><sub>x</sub></i> NPs with sizes of 5–10 nm are obtained at a pH value in a range of 9.5–9.8. More interestingly, the obtained NiO<sub><i>x</i></sub> NPs have good dispersion stability and can achieve long-term dispersion in aqueous solution. Furthermore, the structural composition analysis of NiO<sub><i>x</i></sub> NPs shows that the pH value of the synthesis system does not have a significant effect on the material structure nor composition of the NiO<sub><i>x</i></sub> NP. Surface morphological analysis shows that the NiO<sub><i>x</i></sub> film prepared by the pH-controlled NiO<sub><i>x</i></sub> NPs is rather dense and particularly flat with small surface roughness. It is also found that the film exhibits good hole extraction capability. We also fabricate an inverted perovskite solar cell based on the NiO<sub><i>x</i></sub> film. The device structure is ITO/NiO<sub><i>x</i></sub>/CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>/PC<sub>61</sub>BM/Bphen/Ag. It yields a good photovoltaic conversion efficiency (17.39%). In addition, the device is almost hysteresis-free. Our experimental results exhibit that the performance of perovskite solar cells can be effectively improved by precisely controlling the sizes of NiO<sub><i>x</i></sub> NPs through pH values. Our work is expected to facilitate the development of NiO<sub><i>x</i></sub>-based perovskite solar cells.

Green modification of graphene dispersion with high nanosheet content, good dispersibility, and long storage stability.

In this work, an easy, green, noncovalent surface modification of pristine graphene (GR) was carried out using a single-step method between sodium carboxymethyl cellulose (CMC) and pristine GR, resulting in the formation of a modified CMC–GR (CGR) dispersion with 15% nanosheet content, the first reported in water. Results obtained from thermogravimetry analysis (TGA), Raman spectroscopy, and atomic force microscopy (AFM) confirm that the CMC modifier is successfully decorated on the pristine GR surface. Analyses of transmittance spectrum, zeta potential and transmittance electron microscopy (TEM) images reveal that the modified CGR has a high degree of dispersion. More importantly, the pristine GR is insoluble, while the modified CGR-3, mixed with 1.1 wt% CMC modifier, is easily well dispersed in water and has good flowability, and no sedimentation is observed after more than 3 months.

Production of lignin-containing nanocellulose from poplar using ternary deep eutectic solvents pretreatment

Developing green and sustainable reagents and materials is of great significance for the lignin-containing nanocellulose (LNC) production. In this study, new green ternary deep eutectic solvents (DESs) pretreatment followed by microfluidization were used to prepare LNC from poplar. Under optimal pretreatment conditions (choline chloride: lactic acid: p-toluenesulfonic acid molar ratio of 2:10:1, 100 °C), ultrafine ribbon-like LNCs about 23.29 nm wide and 1.16 nm thick with uniformly distributed spherical lignin particles were obtained. The yield of the LNC reached 64.65%. The LNC exhibited cellulose I crystal structure, good dispersion stability in water and high lignin content of 27.65%. The LNC also possessed high thermal stability (Tmax = 370 °C). Additionally, the LNC suspensions showed high viscosity and strong gel-like behavior. The novel ternary DESs pretreatment combined with microfluidization process offers a promising route in converting hardwood biomass into value-added LNC.

Preparation and application of multi-wavelength-regulated multi-state photoswitchable fluorescent polymer nanoparticles

The photoswitchable system with color and multi-state fluorescence changes is the key to the realization of advanced multi-level information storage, and its application potential has far exceeded the monochromatic fluorescent system. Herein, we introduced a novel multi-state photoswitchable fluorescent polymeric nanoparticles, which contains two energy-matched photoswitchable fluorescent molecules, i.e. diarylethene derivative (BH, donor) and spiropyran derivative (SPMA, acceptor), to construct a tunable fluorescence resonance energy transfer (FRET) system. By optimizing the feeding ratio of the two photochromic molecules to control the efficiency of energy transfer, the fluorescence of the nanoparticles can be reversibly switched among none, red, orange, and green by adjusting the wavelength of light stimuli. In addition, the nanoparticles display good water dispersibility, high brightness, fast responsiveness, excellent photoreversibility, and long-term fluorescence stability. We also verified that the system has great potential in optical data storage, multi-layer information encryption, and anti-counterfeiting.

Clean preparation of washable antibacterial polyester fibers by high temperature and high pressure hydrothermal self-assembly

Abstract The clean production and washing resistance of nano-coating have always been common issues in nano-functional polyester textiles because of the dense structure and chemically inert surface. Here, we developed a clean treatment strategy for preparing washable silver nanoparticle (AgNP)-coated polyester fibers through high-temperature, high-pressure hydrothermal self-assembly of AgNPs in polyester fibers. AgNPs with high affinity to polyester were prepared through the hydrothermal reduction of AgNO3 by hyperbranched poly(amide-amine)s. The as-prepared spherical AgNPs possessed a uniform particle size (∼7.52 nm), a positive charge (zeta potential of +54.52 mV), and good dispersibility and chemical stability at 110–130°C. The optimal clean treatment conditions had Ag concentrations of 1–50 mg/L, impregnation time of 2 h, and impregnation temperature of 110°C. Therefore, the Ag content of polyester fibers in the range 0–2,500 mg/kg could be precisely controlled. The as-prepared polyester fibers exhibited excellent antibacterial activities and washing resistance and low Ag release (0.00024% for 24 h). Even when the Ag content was as low as ∼50 mg/kg, the corresponding bactericidal rates increased to 99.99% for Escherichia coli and 99.93% for Staphylococcus aureus. The sample containing ∼200 mg/kg of Ag could achieve up to a 99.99% bactericidal rate for E. coli and 99.9% for S. aureus even after 50 standard washes.

Facile encapsulation of thymol within deamidated zein nanoparticles for enhanced stability and antibacterial properties

Thymol is one of the main essential oils derived from oregano with wide-ranging potential applications, such as antioxidation, anti-inflammation, and antibacterial properties. However, its low water solubility and bioavailability, as well as poor stability, have severely restricted its practical applications. Herein, deamidated zein nanoparticles loaded with thymol (DZTNPs) have been successfully prepared using the antisolvent precipitation approach. Particularly, a common alkaline deamidation method is used to pretreat zein as the particle precursor. Scanning electron microscopy, dynamic light scattering, zeta potential measurement, X-ray diffraction and differential scanning calorimeter have been used to characterize the resultant DZTNPs. It is worth noting that after freeze-drying, deamidated zein nanoparticles loaded with thymol have good redispersibility and physical stability stored at 4 °C. Furthermore, the as-prepared DZTNPs have greater antibacterial efficacy against E. coli and S. aureus than unencapsulated thymol for a longer period of time. Therefore, this study provides a viable vehicle for delivering hydrophobic active compounds, which is of significance in the application of food, cosmetics and pharmaceutics. Deamidated zein nanoparticles loaded with thymol are prepared by an antisolvent precipitation process, which have good dispersion stability and re-dispersibility after freeze-drying, as well as a better antibacterial performance than unencapsulated thymol.

Scalable Preparation of Cellulose Nanofibers from Office Waste Paper by an Environment-Friendly Method.

Waste paper is often underutilized as a low-value recyclable resource and can be a potential source of cellulose nanofibers (CNFs) due to its rich cellulose content. Three different processes, low acid treatment, alkali treatment and bleaching treatment, were used to pretreat the waste paper in order to investigate the effect of different pretreatments on the prepared CNFs, and CNFs obtained from bleached pulp boards were used as control. All sample fibers were successfully prepared into CNFs by 2,2,6,6-tetramethyl-piperidine-1-oxyl (TEMPO) oxidation. It was quite obvious that the bleached CNFs samples showed dense fibrous structures on a scanning electron microscopy (SEM), while needle-like fibers with width less than 20 nm were observed on a transmission electron microscopy (TEM). Meanwhile, the bleaching treatment resulted in a 13.5% increase in crystallinity and a higher TEMPO yield (e.g., BCNF, 60.88%), but a decrease in thermal stability. All pretreated CNFs samples showed narrow particle size distribution, good dispersion stability (zeta potential less than −29.58 mV), good light transmission (higher than 86.5%) and low haze parameters (lower than 3.92%). This provides a good process option and pathway for scalable production of CNFs from waste papers.

Anti-inflammatory effects of traditional chinese medicine ingredients based on nano-Strychnos liposomes for external skin application

Strychnos is an effective anti-tumor monomer with anti-inflammatory, analgesic, anti-tumor and enhancing immunity. However, its clinical application is restricted due to its poor water solubility and toxicity. The key to the study of traditional Chinese medicine strychnine is to develop a new low toxicity and high efficiency formulation. Nano liposomes can effectively improve the transdermal absorption rate of the drug, prolong the action time of the drug, enhance the tissue targeting of the drug, so as to achieve the sustained-release effect. Therefore, this paper attempts to explore the anti-inflammatory effect of traditional Chinese medicine ingredients based on the skin topical nano Strychnos liposomes, and provide experimental and theoretical basis for the development of new transdermal formulations of nano Strychnos liposomes. In this paper, Strychnos was used as the research object, and the experimental results showed that Strychnos liposomes with good dispersion stability could be prepared by film ultrasonic method. Although the composite phospholipid liposome only contains 10% hydrogenated phospholipid liposome, its peroxide value is always far lower than that of soybean phospholipid liposome, so the antioxidant capacity of composite phospholipid liposome is higher than that of soybean phospholipid liposome. Nano liposomes have almost no anti-inflammatory effect, while ordinary Strychnos has poor analgesic and anti-inflammatory effects; nano Strychnos liposomes have considerable anti-inflammatory effect.

Self-assembling combretastatin A4 incorporated protamine/nanodiamond hybrids for combined anti-angiogenesis and mild photothermal therapy in liver cancer

Tumor angiogenesis has been identified as an important factor in the development and progression of tumors, and anti-angiogenesis therapy has been recognized as an effective tumor therapy pattern. The unique characteristics of nanodiamonds (NDs) have been explored for photothermal therapy (PTT) against cancer, while the efficiency of mild PTT mediated by bare NDs was limited. The combination of different therapies into a single nanoplatform has shown great potential for synergistic cancer treatment. In this investigation, we integrated hydrophobic antiangiogenesis agent combretastatin A4 (CA4) into the protamine sulfate (PS) functionalized NDs hybrids (NDs@PS) with a noncovalent self-assembling method (CA4-NDs@PS) for potential combined anti-angiogenesis and mild PTT in liver cancer. The resulted CA4-NDs@PS NDs exhibited high drug loading ability, good dispersibility and colloidal stability. The near-infrared (NIR) laser irradiation could trigger the release of CA4 from CA4-NDs@PS NDs and elevate the temperature of CA4-NDs@PS NDs aqueous solution. In vitro results illustrated that CA4-NDs@PS coupled with laser irradiation could remarkably enhance HepG-2 cells killing efficiency, leading to an enhanced photocytotoxicity. Furthermore, in vivo experiments revealed that CA4-NDs@PS exhibited a highly synergistic anticancer efficacy with NIR laser irradiation in HepG-2 tumor-bearing mice. Altogether, our present study fabricated a novel NDs@PS-based nanoplatform for combined anti-tumor angiogenesis and mild PTT against liver cancer.

Functionalization of the Fine Al2O3 Abrasive by the Polyacrylamide Deposition

In order to enhance the dispersion stability of ultra-fine Al2O3 powder in aqueous media, the alumina particles were modified with silane coupling agent KH570 at first, and then 2,2'-Azobis(2-amidinopropane) dihydrochloride (AIBA) was anchored onto the modified Al2O3 to initiate the graft polymerization of acrylamide monomer (AM), and PAM/Al2O3 composite particles were obtained finally. The structure and dispersion property of Al2O3 composite particles were characterized by XPS, FTIR, laser particle size analyzer, micro electrophoresis apparatus, SEM and spectrophotometer. The results indicated that the attained composite abrasive when water-soluble azo initiator was added at 40 ℃ showed good dispersion stability in aqueous media with PAM as shell and Al2O3 as core. Compared with unmodified Al2O3, the reunion phenomenon of grafting polymerization modified Al2O3 powder was improved by AM, the D50 of the modified particles reduced. The isoelectric point (IEP) of the grafting modified particles migrated, and the zeta potential of the modified particles reached to the maximum value when the pH was 9. After PAM/Al2O3 abrasive polished, the surface roughness of NiP/Al hard disk surface was obviously reduced.

In situ construction of Fe(Co)OOH through ultra-fast electrochemical activation as real catalytic species for enhanced water oxidation

Oxygen evolution reaction (OER) as the anodic reaction of water splitting is of great significance to the development of hydrogen energy and fuel cell. Although transition metal hydr(oxy)oxides (M-OOH) have satisfactory intrinsic catalytic activity as real catalytic species for OER, their poor dispersion and stability and complicated preparation way seriously limit their subsequent applications. Herein, using a special Co-MOF precursor, a kind of bimetallic hydroxyl oxides (Fe(Co)OOH) has been in situ constructed through a one-step rapid electrochemical activation. Combining electrochemical tests with in situ spectroscopic methods, we demonstrated that the rich electronic CoBDC (Co2(OH)2(C8H4O4)) array structure is conducive to the regulation of electronic structure and the enrichment and transference of OH* species to stabilize M-OOH species and exert bimetal synergistic effect. As expected, Fe(Co)OOH@CoBDC-NF (FCCN) shows the optimal OER performance, with an overpotential of only 241 mV at 100 mA cm−2, which was nearly 30% lower than reported RuO2. Meanwhile, thanks to the support and dispersion of Co-MOF precursor, its performance can remain after 240 h of ultra-long stability test and large current test under strong alkali condition. In general, this work provides a new design inspiration for ultra-fast synthesis of bimetallic hydroxyl oxides with good dispersion, high activity and long-term stability.

Synthesis, characterisation and thermo-physical properties of highly stable graphene oxide-based aqueous nanofluids for potential low-temperature direct absorption solar applications

Two types of highly stable 0.1% graphene oxide-based aqueous nanofluids were synthesised and investigated. The first nanofluid (GO) was prepared under the influence of ultrasonic irradiation without surfactant. The second nanofluid was treated with tetra ethyl ammonium hydroxide to reduce the graphene oxide to form reduced graphene oxide (RGO) during ultrasonic irradiation. The GO and RGO powders were characterised by various techniques such as field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction and Raman. Also UV–visible absorption spectroscopy was carried out and band gap energies were determined. Optical band gap energies for indirect transitions ranged from 3.4 to 4.4 eV and for direct transitions they ranged between 2.2 and 3.7 eV. Thermal conductivity measurements of the GO-based aqueous nanofluid revealed an enhancement of 9.5% at 40 °C compared to pure water, while the RGO-based aqueous nanofluid at 40 °C had a value 9.23% lower than pure water. Furthermore, the photothermal response of the RGO-based aqueous nanofluid had a temperature increase of 13.5 °C, (enhancement of 60.2%) compared to pure water, the GO-based aqueous nanofluid only displayed a temperature rise of 10.9 °C, (enhancement of 46.6%) after 20 min exposure to a solar irradiance of 1000 W m−2. Both nanofluid types displayed good long-term stability, with the GO-based aqueous nanofluid having a zeta potential of 30.3 mV and the RGO-based aqueous nanofluid having a value of 47.6 mV after 6 months. The good dispersion stability and photothermal performance makes both nanofluid types very promising working fluids for low-temperature direct absorption solar collectors.

Chondroitin sulfate-curcumin micelle with good stability and reduction sensitivity for anti-cancer drug carrier

Chondroitin sulfate-curcumin (ChS-Cur) polymeric micelles derived from oxidized Chondroitin sulfate (ChS), Curcumin (Cur) and Bis-acrylamide cysteine (BAC) were prepared by radical polymerization. The morphology, Zeta potential, cytotoxic and drug release behavior were explored. ChS-Cur polymeric micelles hold a spherical structure with a particle size of about 250 nm, and micelles showed a good dispersion stability. Release studies showed that the controlled release profile of drug was obtained and the micelles had redox sensitivity. In vitro cytotoxicity studies showed that the ChS-Cur micelles were non-cytotoxic.

One-pot facile synthesis of yellow-green emission carbon dots for rapid and efficient determination of progesterone

Progesterone (P4) is an important steroid hormone that act as an indicator in the female reproductive processes; thus, following its concentration levels in human serum is important for diagnosis of early pregnancy. In this work, carbon dots (CDs) were designed via a dry-heating method, and the novel CDs exhibited good dispersion stability and excellent photostability. Under optimal conditions, the as-prepared CDs displayed high selectivity and sensitivity for P4 and exhibited a fast-responsive (within 1 min) fluorescence intensity enhancement signal in aqueous solution. For further application, the fluorescence sensing system was further extended to monitoring progesterone in real samples with acceptable recoveries. The methodology developed here offers a promising direction for the detection of clinical biomarkers that are closely related to human health.

Fluorinated branched polymer enables Ce6 and IR780 more effective for phototherapy

AbstractPhototherapy is gradually becoming a primary technique for treating tumors due to increased efficacy and less side effects. It largely depends on the photosensitizers. Nevertheless, most of photosensitizers show poor stability, how to encapsulate or load them, especially multiple ones, for effective delivery is of paramount importance. To address the challenge, a hyperbranched polymer was prepared by a reversible addition‐fragmentation chain transfer polymerization, which is composed of 2,2,3,3‐Tetrafluoropropyl methacrylate (TFPMA), bis(2‐methacryloyl)oxyethyl disulfide (DSDMA) and poly(oligo ethylene glycol) methyl ether methacrylate (PEGMA). Benefiting from hydrophobic performance of fluorinated segments, this hyperbranched polymers can load hydrophobic IR780 (9%) and Ce6 (12%) due to self‐assembly and hydrophobic‐hydrophobic interaction. The final formed composite micelles showed good water dispersity, well biocompatibility, and strong stability. Remarkably, they had good photodynamic and photothemal abilities, enabling them to synergistically induce tumor cell apoptosis by oxidative damage and thermal ablation. This work offers a promising composites and strategy for loading photosensitizers stably and effectively towards cancer therapy.