Liguo Qin

Liguo Qin
Xi'an Jiaotong University | XJTU · School of Mechanical Engineering

PhD

About

45
Publications
4,551
Reads
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561
Citations
Citations since 2017
31 Research Items
477 Citations
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2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
Introduction
Liguo Qin currently works at the School of Mechanical Engineering, Xi'an Jiaotong University. Liguo does research in Materials Science, Nanotechnology and Materials Chemistry. Their current project are 'NSFC2016' and 'NSFC2019'.
Additional affiliations
October 2019 - present
KTH Royal Institute of Technology
Position
  • PostDoc Position
October 2019 - present
Xi'an Jiaotong University
Position
  • Professor (Associate)
May 2016 - September 2019
Xi'an Jiaotong University
Position
  • Lecturer

Publications

Publications (45)
Article
Antimicrobial peptides (AMPs) are promising antibacterial agents in the fight against multidrug resistant pathogens. However, their application to skin infections is limited by the absence of a realizable topical delivery strategy. Herein, a hybrid hierarchical delivery system for topical delivery of AMPs is accomplished through the incorporation o...
Article
Slippery liquid infused porous surfaces (SLIPS) process potential applications in surface liquid repellency, self-cleaning and anti-adhesion, while exhibiting long-term and stable release of lubricants is remaining a great challenge. Herein, an efficient liquid injection method was proposed to construct SLIPS by altering the surface energy and adju...
Article
Full-text available
Ship hulls and subsea equipment are plagued by current resistance, seawater particles impact, corrosion and other challenges in the ocean. Consequently, developing sustainable nontoxic antifouling coatings is highly urgent. Discoveries from nature have inspired us to design high-efficiency, environmentally friendly, and cost-effective antifouling c...
Article
Endowing coatings with effective protective function for metal substrates is of great interest. An excellent example is slippery liquid infused surface (SLIS) which possesses potential applications owing to its unique liquid repellency and self-cleaning properties. However, their widespread applications are facing obstacles of complex preparation,...
Article
Among various surface modification technologies, laser surface texturing (LST) to introduce texture has attracted more scholars' attention for controlling the tribological performance. The enhanced processing quality of the textured surface results in reducing the coefficient of friction and improving the wear resistance. In this study, dielectric...
Article
Full-text available
Flexible materials with ideally designed structures and properties through direct ink writing (DIW) offer vast potential for flexible wearable devices, sensors, soft robots, and so on. Despite its common use as a flexible material, Sylgard‐184's poor rheological properties restrict its ability of printing precision models by DIW. Herein, we have im...
Article
The riblet structure on the surface of the shark skin provides significant drag reduction and fouling protection. Inspired by the structure of the shark skin, we present a direct ink writing protocol by modifying the rheological properties of polydimethylsiloxane to make it printable, and a series of flexible surfaces have been created with drag re...
Article
Full-text available
Polydimethylsiloxane (PDMS), as a polymer material with excellent mechanical properties and flexibility, is widely used in flexible wearable devices, soft robots and other fields. Commonly, the Mold-flipping is used to produce PDMS based samples, while it is time-consuming and impractical for the large-scale fabrication. With the additive manufactu...
Article
Full-text available
Bionic robots with high flexibility and adaptability have significant potential in healthcare, rescue and smartness applications. Although huge attentions have been paid to the bionic robot research, preparing flexible actuators with high sensitivity, fast response and long lifespan are still in great challenge. This study presents an enhanced actu...
Chapter
Original cell/tissue overlay, e.g. cartilage, acted as the barrier for protecting from damage and anti-friction layers with lifespan movements. Inspiring from nature and forming tissue or tissue-like surface are regarded as the final dream for researchers to improve human beings. In the field of biomedical engineering, numerous strategies were appl...
Article
Full-text available
Marine equipment and ships operating in complex environments face high drag consumption and severe surface fouling. Non-smooth biomimetic surfaces with specific microstructures work to reduce surface drag and inhibit fouling. In this work, the biological sharkskin shield scale structure was simplified by the idea of segmented independence to constr...
Article
Purpose This study aims to improve the tribological performance of Babbitt alloy under oil lubricant condition. Thus, the surface was treated into oleophobic state by modifying with low surface energy fluorosilane (1H,1H,2H,2H-perfluorodecyltriethoxysilane). It is believed that the oleophobic surface offered excellent wear resistance of Babbitt-bas...
Article
Full-text available
Infections caused by antibiotic-resistant bacteria are globally a major threat, leading to high mortality rates and increased economic burden. Novel treatment strategies are therefore urgently needed by healthcare providers to protect people. Biomaterials that have inherent antibacterial properties and do not require the use of antibiotics present...
Article
Sustained release of the Bovine serum albumin (BSA) from agarose hydrogel has been suggested to decrease the frictional coefficient of hip implants. Hydrogel network formed with biological solvents such as simulated body fluid (SBF), sodium chloride (NaCl) and phosphate buffer solutions (PBS). Mechanical and rheological properties of hydrogel have...
Article
Full-text available
Ultraviolet (UV) sensors offer significant advantages in human health protection and environmental pollution monitoring. Amongst various materials for UV sensors, the zinc oxide (ZnO) nanostructure is considered as one of the most promising candidates due to its incredible electrical, optical, biomedical, energetic and preparing properties. Compare...
Article
Full-text available
Multi‐drug delivery systems constructed from a basic polymeric scaffold, and which have the ability to target a variety of biomedical applications, can streamline the development of nanomedicine to provide both environmental and economical relief. Herein, amphiphilic ABA‐triblock copolymers are synthesized and assembled sequentially into micelles a...
Article
Full-text available
Magnetic carbon nanotube (marked as “MWCNT@Fe3O4”) has been prepared by depositing magnetic Fe3O4 on carbon nanotube. In order to align MWCNT@Fe3O4 in polyimide (PI) film, weak magnetic field by permanent magnet has been applied during the film curing process. The orientation mechanism of MWCNT@Fe3O4 between the magnetic carbon nanotubes and the PI...
Article
Hyaluronic acid (HA) as a major constituent of bionic synovial fluid (BSF) has significant role in lubrication of human body hip joint. Those who mostly suffer from joint related disease prefer to try injections of synovia over of total hip replacement (THR). However, affection of the metabolism process to the injected synovia is able to decrease t...
Article
Full-text available
Due to their bioinert and reliable tribological performance, cobalt chromium molybdenum (CoCrMo) alloys have been widely used for articular joint implant applications. However, friction and wear issues are still the main reasons for the failure of implants. As a result, the improvement of the tribological properties and biocompatibility of these al...
Article
Full-text available
To improve the drag-reducing and antifouling performance of marine equipment, it is indispensable to learn from structures and materials that are found in nature. This is due to their excellent properties, such as intelligence, microminiaturization, hierarchical assembly, and adaptability. Considerable interest has arisen in fabricating surfaces wi...
Article
Full-text available
In the present paper, the influence of self-mated friction materials on the tribological properties of hydrogenated amorphous silicon films (a-Si:H films) is studied systemically at high temperature. The results are obtained by comparing the tribological properties of a-Si:H films under different friction pair materials and temperatures. The a-Si:H...
Article
Full-text available
In the study, the hydrogen‐free diamond‐like carbon (DLC) coating was deposited on the surface of the Co‐Cr‐Mo alloy. Pin‐on‐plate tribotests were performed for the DLC‐coated CoCrMo specimen against un‐doped CoCrMo alloy under bovine serum albumin (BSA), NaCl solution, and distilled water. Results showed that the average coefficient of friction (C...
Article
MoSe 2 nanoparticles were successfully synthesized by hydrothermal method and treated with a novel dispersion method, ultrasonic dispersion in water. The tribological behaviors and wear mechanisms of MoSe 2 nanoparticles as oil additives were investigated using a reciprocating ball-on-disk tribo-meter. The results showed that the average friction c...
Article
Agarose hydrogel as an efficient carrier for protein model has been considered to optimize the lubrication of artificial hip joints. Elevating the effectiveness of lubricant to reduce frictional coefficient and wear debris to prolong life time of prosthesis is a main goal. Various biological solvents, such as sodium chloride (NaCl) solution, simula...
Article
A layer-by-layer deposition technique with grafting chitosan on the Co-Cr-Mo alloy was developed. The performance of tribology and biocompatibility were investigated under simulated conditions. Wettability of coating surface was super hydrophilic and the surface was in positive charge under the neutral solution, which was favored in water-based lub...
Article
Full-text available
Injection of bionic synovial fluid (BSF) is a conventional method to improve the lubricity of artificial joints, but BSF cannot maintain long due to the dilution and degradation of BSF in human body. To prolong the effectiveness of hyaluronic acid (HA), which is the major component of BSF, this study applies a temperature-sensitive poly(ɛ-caprolact...
Article
Full-text available
An effective method of edge deburring in laser surface texturing was presented. Tribologically, suitably orientated micro-dimples on Co-Cr-Mo alloy can effectively reduce interfacial friction due to their storing of wear debris. However, burrs generated around dimple rim during laser irradiation inclined to cause plowing wear due to their piercing...
Article
Surface texturing is one of the effective strategies to improve bioactivity of implantable materials. In this study, hierarchical micro and nano structure (HMN) were fabricated on Co-Cr-Mo alloy substrate by a movable picosecond laser irradiation. Respectively, microgrooves with nano ripples and islands were produced on Co-Cr-Mo alloy by low and hi...
Article
Full-text available
Excessive wear debris in prosthesis tends to induce loosening, which is a major problem affecting the durability of long-serving implants. Although bionic synovial fluid can be used to improve the lubrication of artificial joints, the fluid is often absorbed easily by the tissues of human body. To enhance the effectiveness of bionic synovial fluid,...
Article
The goal of the work is to investigate the lubrication mechanism of MoS2 nano sheet. Polyisobutyleneamine Succinimide (PIBS) provides the steric repulsion to disperse nanoparticles in oil due to its long carbon chain. In the present study, the tribological behavior of nano-MoS2 sheet mixed with different percentages of PIBS was explored. The disper...
Article
The maintenance cost of a heavy truck increases due to the severe damage of thrust washer in the differential. The wear was usually related to the contact stress concentration. In the study, the finite element analysis (FEA) was performed for identifying the source of the abnormal wear of thrust washer. An improved approach of modifying the surface...
Article
The electrochemical corrosion behavior of cast iron which are used as liner material of methanol gasoline engine cylinder and tungsten carbide coatings on cast iron were comparatively investigated in methanoic acid aqueous solution by means of polarization curves and electrochemical impedance spectroscopy. The experimental results show that the tun...
Article
Full-text available
The lubrication mechanism of nanoinorganic particles during friction process has been widely investigated. However, the physical adsorption action mechanism between the nanoparticles (after modification) and friction pairs has so far never been studied in detail. In this study, the various concentrations of polyisobutyleneamine succinimide (PIBS) b...
Article
Osteoblast responses to Co–Cr–Mo alloy depend on not only the chemistry of alloy but also the physical properties of alloy surface, such as its microtopography and roughness. This study was undertaken to examine changes in cell adhesion, morphology, differentiation and gene expression during osteoblast interaction with different textured Co–Cr–Mo a...
Article
Surface treatments using bio-technology are valuable and fascinating in the sense that such treatments are natural and yield good biocompatibility. Calcium oxalate whiskers for biomedical applications were successfully synthesized on the CoCrMo alloy surfaces implanted in Aloe leaves which consist of many active bio-chemical elements. The effect of...
Conference Paper
This paper, based on the two-component slip model, numerically analyzes the tribology performances of journal bearings with boundary slip/no-slip regions on the condition of high speed water lubrication. It is demonstrated that journal bearings with a whole slip sleeve reduce the friction drag and the load carrying capacity. Bearings with a slip/no...
Article
Surface wettability behaviors of three kinds of laser textured Co–Cr–Mo alloy surfaces (arrays of circular, triangular and square shape dimples) were evaluated in aqueous bovine serum albumin (BSA) solution. The tribological properties of laser textured Co–Cr–Mo alloy were investigated by pin–on–disc reciprocating tribometer under BSA lubrication....
Article
Six chemical sulfated polysaccharide derivatives (PFP-S) with variable degree of substitution (DS) and molecular weights (Mw) were prepared from the fresh persimmon fruits by chlorosulfonic acid-pyridine and ultrasonic degradation methods, and the effectiveness of the reaction was monitored by the DS, FT-IR and ζ-potential analysis. The sulfation m...
Article
Surface treatments using bio-technology are valuable and fascinating. Aloe is a popular medicinal plant. The surface of titanium alloy (TC4) sample planted in aloe can produce oxalate whiskers. It is shown that an appropriate incubative stage and a proper surface roughness of TC4 specimens can be beneficial to the amounts and length of oxalate whis...
Article
In this study, three kinds of chemically sulfated polysaccharides (PFP-S) were derived from a water-soluble polysaccharide of persimmon fruit with chlorosulfonic acid-pyridine method. Relationship between the degree of substitution and immunomodulatory activity of PFP-S was examined with the splenocytes experiment. The results showed that the splen...

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