A5101697666- Laser Applications in Dentistry and Medicine
- ZnO doping and properties
- Laser Material Processing Techniques
- Ga2O3 and related materials
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Collagen: Extraction and Characterization
- Ocular and Laser Science Research
- Dermatologic Treatments and Research
- GaN-based semiconductor devices and materials
- Metal and Thin Film Mechanics
- Tendon Structure and Treatment
- Evaluation and Optimization Models
- Welding Techniques and Residual Stresses
- Photoacoustic and Ultrasonic Imaging
- Diagnosis and Treatment of Venous Diseases
- Electronic and Structural Properties of Oxides
- Flame retardant materials and properties
- Dental materials and restorations
- Nonlinear Optical Materials Studies
- Skin Protection and Aging
- Semiconductor materials and interfaces
- Additive Manufacturing Materials and Processes
- Surgical Sutures and Adhesives
- Environmental Quality and Pollution
Nanjing University of Science and Technology
2023-2025
Materials Science & Engineering
2024
PLA Army Engineering University
2018
Zhejiang University
2008-2014
State Key Laboratory of Silicon Materials
2008-2013
China University of Mining and Technology
2013
Sinopec (China)
2011
ABSTRACT Tendon tissue plays an important role in transmitting the force, increasing incidence of serious tendon injuries. The clinical method repair is contact surgical suture, which has problem high requirements for surgery. Laser a noncontact feature that can reduce postoperative complications. However, low tensile strength due to weak ability absorb energy. Dressing‐assisted laser joining ruptured tendons improve tissue. enhancement effect dressing was tested, and mechanical properties...
We report a preparation method of vertically aligned Cu-doped ZnO nanowire arrays by chemical vapor transportation combining with simple thermal diffusion. Copper has been incorporated into the nanowires. Analyses through Raman, photoluminescence and EPR indicate that besides induced CuZn defects there are another two kinds intrinsic defects, i.e. Zni Vo, their density varying treatments. The strong green emission might be caused joint action three different reasons: CuZn, Vo surface...
Abstract A novel composite wound dressing hydrogel by incorporating single‐walled carbon nanotubes and indocyanine green into a dual‐crosslinked through Schiff base reaction was developed. The objective to prevent infection enhance the thermal effect induced laser energy. matrix constructed using oxidized gelatin, pre‐crosslinked with calcium ions, along carboxymethyl chitosan, crosslinked via reaction. Optimization of blank hydrogel's gelation time, swelling index, degradation rate,...
We investigate the electrical properties of polar and non-polar ZnMgO:Na films that have been fabricated on c-plane r-plane sapphire substrates using intervened ZnO layers (10–30 nm thick) by pulsed laser deposition. Hall-effect measurements indicate a-plane film exhibits p-type conductivity with a carrier concentration about 3.5 × 1016 cm−3, while shows compensatory conductivity. Meanwhile, dependence band alignment orientation ZnMgO/ZnO heterojunctions has investigated photoelectron...
TiH 2 is introduced into Al/PTFE reaction system for the first time. In order to study mechanical and properties of Al/TiH /PTFE composites, five kinds mixtures with different contents contrasting mixture are prepared. The true stress–strain curves phenomena recorded during quasi‐static compression experiments; residues analyzed XRD understand mechanism. results show that introduction can significantly influence strength composites; With increasing content, firstly increase then decrease;...
A series of characterization methods involving high-resolution X-ray diffraction (HR-XRD), electron channel contrast imaging (ECCI), cathodoluminescence microscopy (CL), and atomic force (AFM) were applied to calculate the dislocation density GaN-on-Si epitaxial wafers, their performance was analyzed evaluated. The ECCI technique, owing its high lateral resolution, reveals distributions on material surfaces, which can visually characterize density. While CL technique is effective for...
ABSTRACT The selection of an appropriate vascular anastomosis process has important impact on the surgical treatment coronary artery disease. In this paper, a laser‐assisted test was carried out based response surface experimental method, and interaction laser parameters bursting pressure strength thermal damage anastomotic incision analyzed, relationship model between performance tissues established, optimal welding were obtained. results show that power significant effect incision;...
A series of 10-period ZnO/Zn0.9Mg0.1O multiple quantum wells (MQWs) with well widths varying from 2.2 to 5.6 nm have been grown on r-plane sapphire substrates by pulsed laser deposition. good periodic structure clear interfaces was observed transmission electron microscopy. In a-plane MQWs, the luminescence dominated localized exciton emissions at low temperatures, while free (FE) transition dominating temperatures above 100 K. The thermal quenching behavior emission has analyzed. rate...
To study the influence pattern of femtosecond laser scanning path on welding effect skin tissue, this experiment analyzed surface morphology, degree thermal damage, tensile strength, and microstructure samples after attachment by designing nine paths to weld tissue. The results showed that connected interrupted parallel mattress eversion sewing method with d = 0.2 mm no obvious color changes in were both front back sides, strength was highest, reaching 12.80 N/cm
Considering difficulties of achieving vertical incidence beam in different positions skin, it is significant to study potential effects angles laser on incisions. Surgical platform with a 1064 nm continuous fiber was established. Incident angle adopted and real-time temperature fluctuations operating area could be monitored. The rats were treated at day 0 3 after incision modeling, H&E, Masson, Sirius Red, Immuno-histochemical staining enzyme-linked immunosorbent assay 3, 7, 14 analyze the...
Abstract To investigate the influence of laser parameters on performance tendon tissue, experiments were conducted and process laser‐assisted welding was studied. Several conclusions drawn by analyzing effects tensile strength, microstructure, collagen content tissue incisions. The optimal for found to be a power 5 W, scanning speed 150 mm/s, defocus amount 0 mm, resulting in energy density 32.164 J/cm 2 . At these parameters, percentage inactivated cells due thermal damage only 23.78%,...
Inclined and ordered ZnO nanowire arrays were grown on non-polar seed layer films via a simple vapor-phase transport method without employing any template or catalysis. nanowires exhibited two distinctly opposite directions with an inclination angle of about 58° from the plane substrate. The formation mechanism was proposed to explain growth behaviors based structural analysis. oblique ascribed fact that crystals firstly formed at end nanostripes (100) films, while [0002] orientation...
Abstract The influence of femtosecond laser parameters on the degree thermal denaturation was studied experimentally. relationship between and characteristic skin microstructure secondary structure tissue proteins in characterizing damage analyzed. results showed interaction power, scanning speed had a significant effect denaturation; greater degrees were associated with larger second‐order moments texture angle microtissue smaller entropy values contrast, indicating damage; higher peak...
Since the mechanism underlying real-time acquisition of mechanical strength during laser-induced skin wound fusion remains unclear, and collagen is primary constituent tissue, this study investigates structural alterations in at temperatures ranging from 40°C to 60°C using various spectroscopic techniques molecular dynamics calculations. The COMSOL Multiphysics coupling employed simulate three-dimensional temperature field, stress-strain relationship, light intensity distribution laser...