ACS Applied Optical Materials
·
2026
·Vol. 4
·期 7
·2056-2066
·
IF 3.4
Xiang Cheng,Guo Junliang,Jiang Guobao,Yang Minghui,Chen Jieyi,Zhu Xuancheng,Huang Zuoqiang,Zhou Yue,Gan Yuan,Zhang Quanlong,Yu Qiang,Chen Ying
The development of high-performance
saturable absorbers
(SAs) combining
strong nonlinear optical response, robust environmental stability,
and ease of fiber integration remains critical for advancing compact
ultrafast fiber laser systems. Here, a fiber integrated SA was demonstrated
based on the high quality ternary crystal Ta 2 Ni 3 Te 5 , synthesized by chemical vapor transport and transferred
onto fiber facets via a precision dry-transfer technique. Benefiting
from its van der Waals layered structure and unique electronic topology,
Ta 2 Ni 3 Te 5 based SA exhibits a modulation
depth of 19.98% and a saturation intensity of 0.74 GW/cm 2 at 1.55 μm excitation. When incorporated into an erbium-doped
fiber laser cavity, the Ta 2 Ni 3 Te 5 –SA enables both stable dual-wavelength Q-switching and robust
mode-locking. In the mode-locked regime, the laser delivers picosecond
pulses (2.07 ps), with a repetition rate of 10.66 MHz. It is worth
noting that the output power of the pulsed laser is up to 24.6 mW,
and the signal-to-noise ratio is as high as 76.8 dB. Moreover, the
SA exhibits strong optical damage resistance and maintains stable
performance after prolonged storage, underscoring its environmental
robustness. This work establishes Ta 2 Ni 3 Te 5 as a promising nonlinear optical material for ultrafast photonics
and provides a practical pathway toward high-performance, fiber pulsed
laser sources.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Guoxu He,Menghui Wan,Zhihua Wang,Yanbao Zhao,Lei Sun
Due to its minute droplet size and stability, separation of the emulsion is a non-negligible challenge. In this paper, polyvinylidene fluoride (PVDF) nanofibrous membranes were prepared via the electrospinning method. The nanofibrous membranes were subsequently surface-modified by ZnO nanoparticles , tannic acid (TA), and n-dodecyl mercaptan (DT), in order to reduce the nanofiber membranes' surface energy while increasing their surface roughness . Thus, superhydrophobic and antibacterial nanofibrous membranes have been fabricated for oil-water emulsion separation. The as-fabricated nanofibrous membranes have a water contact angle of 156.5°. The product has a porosity of up to 73.3% due to the high porosity of the electrospinning nanofibrous membranes. In addition, the tensile strength of the PVDF@ZnO@TA@DT nanofibrous membrane is up to 69.25 MPa. Due to these properties, oil droplets can pass through the membrane during the oil-water separation, while the water phase is blocked by the membrane. This results in a good selective permeability of the membrane. As a result, the separation efficiency of the PVDF@ZnO@TA@DT nanofibrous membranes reaches more than 99%, and the flow flux is 1008.88 L·m −2 ·h −1 . At the same time, antimicrobial testing demonstrates that the nanofibrous membranes have a bacteriostatic rate of over 98%. Combined with these properties, PVDF@ZnO@TA@DT electrospun nanofibrous membranes have great potential for efficient emulsion separation and deep purification of wastewater.
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2023
·
IF 11.2
Hankun Cao,Du Xiang,Xin Zhou,Pengpeng Yue,Yongkang Zou,Zibiao Zhong,Yongsheng Ma,Lizhe Wang,Shuangquan Wu,Qifa Ye
Natural polymer hydrogels are widely used in various aspects of biomedical engineering, such as wound repair, owing to their abundance and biosafety. However, the low strength and the lack of function restricted their development and application scope. Herein, we fabricated novel multifunctional chitin/PEGDE-tannic acid (CPT) hydrogels through chemical- and physical-crosslinking strategies, using chitin as the base material, polyethylene glycol diglycidyl ether (PEGDE) and tannic acid (TA) as crosslinking agents, and 90 % ethanol as the regenerative bath. CPT hydrogels maintained a stable three-dimensional porous structure with suitable water contents and excellent biocompatibility. The mechanical properties of hydrogels were greatly improved (tensile stress up to 5.43 ± 1.14 MPa). Moreover, CPT hydrogels had good antibacterial, antioxidant , and hemostatic activities and could substantially promote wound healing in a rat model of full-thickness skin defect by regulating inflammatory responses and promoting collagen deposition and blood vessel formation . Therefore, this work provides a useful strategy to fabricate novel multifunctional CPT hydrogels with excellent mechanical, antibacterial, antioxidant, hemostatic, and biocompatible properties. CPT hydrogels could be promising candidates for wound healing.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2022
·
IF 11.357
Yuling Ren,Pengfei Qi,Yinhua Wan,Chulong Chen,Xiangrong Chen,Shichao Feng,Jianquan Luo
A nanofiltration (NF) membrane with high salt permeation and high retention of small organics is appealing for the treatment of high-salinity organic wastewater. However, the conventional negatively charged NF membranes commonly show high retention of divalent anions (e.g., SO42–), and the reported positively charged NF membranes normally suffer super low selectivity for small organics/Na2SO4 and high fouling potential. In this work, we propose a novel “etching–swelling–planting” strategy assisted by interfacial polymerization and mussel-inspired catecholamine chemistry to prepare a mix-charged NF membrane. By X-ray photoelectron spectroscopy depth profiling and pore size distribution analysis, it was found that such a strategy could not only deepen the positive charge distribution but also narrow the pore size. Molecular dynamics confirm that the planted polyethyleneimine chains play an important role to relay SO42– ions to facilitate their transport across the membrane, thus reversing the retention of Na2SO4 and glucose (43 vs 71%). Meanwhile, due to the high surface hydrophilicity and smoothness as well as the preservation of abundant negatively charged groups (−OH and −COOH) inside the separation layer, the obtained membrane exhibited excellent antifouling performance, even for the coking wastewater. This study advances the importance of vertical charge distribution of NF membranes in separation selectivity and antifouling performance.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Hao Wang,Muhammad Tariq Sarwar,Luyuan Tian,Wenxin Bao,Huaming Yang
Controllable preparation is the current frontier in the field of inorganic nanomaterial-based artificial enzymes (nanozymes). For ferrites, the factors affecting cation occupancy are very complex, making the modulation of cation occupancy extremely challenging. Herein, we report a new strategy to modulate the cation occupancy of manganese ferrite (MFO) based on the structural properties of nanoclay (i.e., montmorillonite K10). It demonstrates that montmorillonite K10 mainly changes the valence state and occupancy of manganese ions in manganese ferrite and not iron ions. K10 increases the proportion of Mn (II) in manganese ferrite and causes more manganese ions to migrate to the tetrahedral sites. As expected, the prepared new inorganic compound possesses excellent enzyme-like catalytic activities and antibacterial functional properties, which are attributed to Mn (II) accelerating Fe (III) reduction and hydroxyl radical formation. Furthermore, steady-state kinetic assays are used to study the reaction mechanism in detail. In vitro and in vivo antibacterial experiments show that the synthesized inorganic compounds exhibit satisfactory disinfection and wound skin recovery efficiencies. This work emphasizes the controllable preparation of new inorganic compounds with biomimetic activity and provides novel insight into the biological effects of inorganic nanomaterials.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Mingxiu Hou,Jianshun Feng,Fanghui Wang,Weiyu Wang,Zhenjiang Li,Jie Liu,Fengli Yu,Lei Wang
Lithium–sulfur (Li–S) batteries have been limited by their poor electrochemical performance due to the large volume change and severe shuttle effect during cycling. Binders serve as an essential role in sulfur electrodes and can stabilize the mechanical integrity of the electrode. It also has been demonstrated that designing strong-affinity binders is a feasible and facile method to suppress the shuttle effect. Therefore, in this work a strong-affinity elastic network binder is designed for high-performance Li–S battery coupling with tannic acid (TA) and polyurethane (PU). Firstly, the rich hydrogen bonds between TA and PU result in a mechanically robust network to keep the sulfur electrode from cracking in the cycling process. Secondly, the selected TA with abundant phenolic hydroxyl groups possesses strong adsorption capability toward polysulfides, which can efficiently restrain the shuttle effect. Hence, the cycling stability of Li–S batteries using P1T1 binder is significantly improved, maintaining the capacity of 602.5 mAh g–1 after 500 cycles at the current density of 0.5 C.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Shue Jin,Renli Yang,Chen Hu,Shiqi Xiao,Yi Zuo,Yi Man,Yubao Li,Jidong Li
The regeneration of oral tissues is a challenging clinical problem because of the complex microbial and biological stress environments. Electrospun fibrous scaffolds have attracted significant interest as effective barrier membranes for guided bone regeneration (GBR); however, no mature strategy yet exists for the surface modification of fibers to provide versatility to satisfy clinical requirements. This study demonstrated a practical biosafety strategy: the combined use of plant polyphenols and LL-37 peptides to modify the fiber surface to endow the fibrous scaffold with antimicrobial activity, immunoregulation, and vascularized bone regeneration. We confirmed that the LL-37 peptides interacted with tannic acid (TA) through noncovalent bonds through experiments and molecular docking simulation analysis. In vitro experiments showed that the TA coating imparted strong antibacterial properties to the fibrous scaffold, but it also caused cytotoxicity. The grafting of LL-37 peptide promoted the spreading, migration, and osteogenic differentiation of mesenchymal stem cells and was also conducive to the M2 polarization of RAW264.7 cells. In vivo experiments further verified that the LL-37 peptide-grafted fibrous scaffold significantly enhanced angiogenesis, anti-inflammatory effects, and type-H vascularized bone regeneration. Overall, the fibrous scaffold modified by the LL-37 peptide through TA grafting has significant potential for GBR applications.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Shichao Zhang,Yong Li,Xinxin Li,Jingjing Gu,Hongwei Shao,Qiang Huang,Peng Cui,Yahua Liu,Jin Ran,Cen-Feng Fu
Two dimensional (2D) TaS 2 laminates have highly regular and ordered transfer mass channels, thus being promising acid recovery membrane candidates for diffusion dialysis (DD) applications to discern H + and metallic ions. However, it remains a daunting task to get access to high-performance 2D acid recycling membranes made from single TaS 2 nanosheets . Here, we report manipulation of the chemical environments of TaS 2 channels to develop excellent acid recycling 2D membranes. As demonstration projects, positively charged poly(diallyldimethylammonium chloride) (PDDA) and poly(4-vinylpyridine) (P4VP) in acid solution were chosen as polycation intercalators to modify the TaS 2 2D channels. Under the DD mode, the TaS 2 membrane exhibits a H + dialysis coefficient (U H + ) of 3.72 × 10 −3 m h −1 and separation factor (S) of 9 towards the simulated acid pickle. In contrast, the U H + and S value of the PDDA@TaS 2 membrane improve to 12.7 × 10 −3 m h −1 and 34.4 respectively. Those of the P4VP@TaS 2 membrane increase to 12.5 × 10 −3 m h −1 and 29.1 respectively. The reported acid recovery properties of PDDA@TaS 2 and P4VP@TaS 2 membranes exceed the commercial DF-120 acid recovery membranes. The experiment and simulation results reveal that the synergistical enhancements of U H + and S originate from the incorporating polycations in PDDA@TaS 2 and P4VP@TaS 2 composite channels.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF FOOD SCIENCE
·
2023
·Vol. 88
·期 4
·1325-1335
·
IF 3.9
Xiaoyan Fu,Shaofeng Yuan,Fangwei Yang,Hang Yu,Yunfei Xie,Yahui Guo,Weirong Yao
The binding of pesticide residues and fruit components may have a profound impact on pesticide dissipation and the functional characteristics of the corresponding components. Therefore, the interaction between boscalid and tannic acid (TA, a representative phenolic in fruit) was systematically investigated using spectroscopic, thermodynamic, and computational chemistry methods. A separable system was designed to obtain the boscalid–TA complex. Fourier transform infrared and 1 H-NMR spectroscopies indicated the formation of hydrogen bonds in the complex. Isothermal titration calorimetry showed that the complex bound spontaneously through hydrophobic interactions (Δ G < 0, Δ H > 0, Δ S > 0), with a binding constant of 6.0 × 10 5 M −1 at 298 K. The molecular docking results further confirmed the formation of hydrogen bonds and hydrophobic interactions in the complex at the molecular level, with a binding energy of −8.43 kcal mol −1 . In addition, the binding of boscalid to TA significantly decreased the antioxidant activity of TA. The binding of boscalid residue to TA was characterized at the molecular level, which significantly reduced the in vitro antioxidant properties of TA. Practical Application This study provides a reference for the molecular mechanisms of the interaction between pesticide residues and food matrices, as well as a basis for regulating bound-state pesticide residues in food.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL ENGINEERING SCIENCE
·
2022
·Vol. 39
·期 12
·907-917
·
IF 2.172
Peng Wan,Xuanning Yang,Qinhua Feng,Shuyu Shi,Baolin Deng,Lina Zhang
Efficient separation of oil droplets from oil/water emulsions is necessary for many energy and food industrial processes and for industrial wastewater treatment. Membrane microfiltration has been explored to address this issue because it is simple to operate and low in cost. However, filtration of oil droplets with a size around or less than 1 μm is still a major challenge. Furthermore, the fabrication process for polymeric membranes often uses hazardous organic solvents and petroleum-derived and nonbiodegradable raw materials, which pose additional environmental health and safety risk. In this study, we examined the use of chitosan-based membranes to efficiently remove oil droplets with an average diameter of ∼1 μm. The membranes were fabricated based on the rapid dissolution of chitosan in an alkaline/urea solvent system at a low temperature, thus avoiding the use of any toxic organic solvent. The chitosan membranes were further modified by dopamine and tannic acid (TA). The as-prepared membrane was characterized in terms of surface morphology, pore size distribution, and mechanical strength. The membrane performance was evaluated on a custom-designed crossflow filtration system. The results showed that the modified chitosan membrane with dopamine and TA had a water flux of 230.9 LMH at 1bar transmembrane pressure and oil droplet rejection of 99%. This water flux represented an increase of more than 10 times when compared with the original chitosan membrane without modification. The study also demonstrated excellent antifouling properties of the modified membrane that could achieve near 100% water flux recovery.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Healthcare Materials
·
2023
·Vol. 12
·期 13
·2203306
·
IF 10
Xinchang Kang,Pengfei Guan,Cairong Xiao,Can Liu,Youjun Guan,Yeying Lin,Yu Tian,Kunyu Ren,Yanting Huang,Rumin Fu,Chengyun Ning,Lei Fan,Guoxin Tan,Lei Zhou
Photothermal hydrogel adhesives have yielded promising results for wound closure and infected wound treatment in recent years. However, photothermal hydrogel bioadhesives with on-demand removability without additional nanomaterials-based photothermal agents have rarely been reported in the literature. In this work, an injectable intrinsic photothermal hydrogel bioadhesive with an on-demand removal trait is developed through dynamic cross-linking of gelatin (Gel), tannic acid (TA) quinone, and borax for closing skin incisions and accelerating methicillin-resistant Staphylococcus aureus (MRSA) infected wound healing. The TA quinone containing polyphenol and quinone groups with multifunctional adhesiveness and intrinsic photothermal performance confer the hydrogel adhesive with near-infrared (NIR) responsive antibacterial activity. The cross-linking of pH-sensitive boronic ester (polyphenol−B) and Schiff base bonds endow the hydrogel with great self-healing capacity and on-demand removability. Moreover, the hydrogel possesses good biocompatibility, injectability, and hemostasis. The in vivo experiment in a rat cutaneous incision model and full-thickness MRSA-infected wound model indicate that the smart hydrogel can close wounds efficiently and treat infected ones, demonstrating its superiority in noninvasive treatment of cutaneous incisions and enhancing infected full-thickness wound healing.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Yiwei Zhan,Yacheng Xing,Quan Ji,Xiaomei Ma,Yanzhi Xia
To construct conductive hydrogels with a conductive and a non- or weakly conductive layer for comfortable and safe electronic application, marine biobased anionic polysaccharide sodium alginate (SA) and neutral polyvinyl alcohol (PVA) were employed as the hydrogel matrixes. Tannic acid (TA) was exploited to mediate the demixing of the miscible aqueous solution of SA and PVA in view of the much larger interaction strength of TA with PVA than both of TA with SA and PVA with SA calculated from the density functional theory (−40.21, −29.77 and −21.00 kcal·mol −1 respectively). The finally-fabricated alginate/PVA composite hydrogels not only possess a “Janus” hierarchy but manifest asymmetrical conductivity, i.e., one layer strongly conductive and another weakly conductive. The strongly conductive layer achieves a conductivity of more than 2.95 S·m −1 , facilitating their application in soft electronic areas like human-machine interfaces, smart wearable devices and soft robots. The weakly conductive layer with the conductivity less than 0.60 S·m −1 and the thickness adjustable, constitutes a protective screen for another layer. The Janus hydrogels exhibit good mechanical performance, excellent strain-sensing performance and fatigue-resistant mechanics, conductivity and sensitivity.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）