Xiulin Shu

Institute of Microbiology

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Qingshan Shi

Guangdong Academy of Sciences

Xiao‐Bao Xie

Guangdong Academy of Sciences

Jing Feng

Northeastern University

Mingjie Chen

Guangdong University of Technology

Lingling Wang

Guangdong Academy of Sciences

Feng Jin

Northwestern Polytechnical University

Wenru Li

Second Xiangya Hospital of Central South University

Junda Liao

Guangdong Academy of Sciences

Peng Dong

Shanghai Fudan Microelectronics (China)

Xiao-Mo Huang

Shanghai Jiao Tong University

Cooperative Institutions

Institute of Microbiology

Guangdong Academy of Sciences

Key Laboratory of Guangdong Province

Chinese Academy of Sciences

Guangdong Open University

Huazhong University of Science and Technology

Northwest A&F University

University of Science and Technology of China

South China Agricultural University

Shandong University

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Silver‐loaded delaminated hectorite nanoparticles for antibacterial materials

Micro & Nano Letters (2019)

Mingjie Chen Ruimin Li Xiulin Shu Liangqiu Li Xiao‐Bao Xie

Silver nanoparticles are excellent antibacterial materials with wide application. However, it is extremely unstable associated with easy aggregation and colour changes. Although a great number of carriers have been developed for stable silver nanoparticles, it is never ending to broaden silver carrier to meet varying applications. Herein, delaminated hectorite was developed as an alternative silver carrier. The structure of silver‐loaded delaminated hectorite was confirmed by X‐ray diffraction, X‐ray photoelectron spectroscopy and scanning electron microscopy/energy‐dispersive X‐ray studies. Silver (8.69 wt%) was loaded onto the hectorite nanoparticles by cationic ionic change and surface coating. The silver‐loaded hectorite showed fast bacterial killing ability (kill more than 94% Escherichia coli and 83% Staphylococcus aureus at 50 ppm within 1 h) by destroying bacterial cell wall.

Hectorite

10.1049/mnl.2018.5017

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Citations (2)

Nanocopper-loaded Black phosphorus nanocomposites for efficient synergistic antibacterial application

Journal of Hazardous Materials (2020)

Dandan Zhang Hui Ming Liu Xiulin Shu Feng Jin Ping Yang

Black Phosphorus

10.1016/j.jhazmat.2020.122317

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Citations (51)

Antimicrobial activity of silver nanoparticles in situ growth on TEMPO-mediated oxidized bacterial cellulose

Cellulose (2014)

Feng Jin Qingshan Shi Wenru Li Xiulin Shu Aimei Chen

Sodium citrate

Silver nanoparticle

Bacterial Cellulose

Bacterial growth

Silver nitrate

10.1007/s10570-014-0449-2

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Citations (61)

Enhanced osteogenic and bactericidal performance of premixed calcium phosphate cement with photocrosslinked alginate thin film

Journal of Biomedical Materials Research Part A (2024)

Xiulin Shu Junda Liao Qian Wang Lingling Wang Qingshan Shi

The increasing prevalence of implant-associated infections (IAI) in orthopedics remains a public health challenge. Calcium phosphates (CaPs) are critical biomaterials in dental treatments and bone regeneration. It is highly desirable to endow CaPs with antibacterial properties. To achieve this purpose, we developed a photocrosslinked methacrylated alginate co-calcium phosphate cement (PMA-co-PCPC) with antibacterial properties, using α-tricalcium phosphate (α-TCP) powders with 16% amorphous contents as solid phase, liquid phases containing CuCl

Calcium phosphate cement

Calcium alginate

10.1002/jbm.a.37688

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Amorphous carbon-coated nano-copper particles: Novel synthesis by Sol–Gel and carbothermal reduction method and extensive characterization

Journal of Alloys and Compounds (2020)

Xiulin Shu Feng Jin Junda Liao Dandan Zhang Ruqun Peng

Carbothermic reaction

Reducing agent

Carbon fibers

10.1016/j.jallcom.2020.156556

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Citations (21)

Preparation and antibacterial properties of an activated carbon sphere–quaternary phosphonium salt composite

RSC Advances (2014)

Yunhua Yang Qingshan Shi Feng Jin Xiulin Shu Jing Feng

Synthesis and activation of nanosized colloidal carbon spheres (CS) for adsorption of a quaternary phosphonium salt as a new antibacterial material is reported. CS (400–500 nm in diameter) were synthesized via simple hydrothermal treatment of glucose solution. The surface of nonporous CS after being activated by steam possessed a high surface area (2325 m2 g−1). The activated CS (ACS) exhibited a high adsorption capacity for the quaternary phosphonium salt (QPS) and have demonstrated excellent antibacterial properties. The QPS on ACS were more stable than the QPS itself, resulting in long-term antibacterial effects. The excellent adsorption performance and reusability of the steam activated CS reported here could represent a new type of low-cost and efficient adsorbent nanomaterial for antibacterial materials.

Phosphonium

Nanomaterials

Phosphonium salt

10.1039/c4ra07282k

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Citations (12)

Macroporous zwitterionic composite cryogel based on chitosan oligosaccharide for antifungal application

Materials Science and Engineering C (2021)

Peng Dong Xiulin Shu Ruqun Peng Shunying Lu Xiao‐Bao Xie

10.1016/j.msec.2021.112327

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Osteogenic, Angiogenic, and Antibacterial Bioactive Nano-Hydroxyapatite Co-Synthesized Using γ-Polyglutamic Acid and Copper

ACS Biomaterials Science & Engineering (2020)

Xiulin Shu Junda Liao Lingling Wang Qingshan Shi Xiao‐Bao Xie

Nano-antibacterial calcium phosphate (CaP) has attracted intense attention with regard to its wide variety of medical and biological applications. The γ-polyglutamic acid and copper cosynthesized hydroxyapatite (γ-PGA/CuxHAp) was synthesized using the wet method. Structural and chemical characterizations demonstrate that copper was quantitatively incorporated into the hydroxyapatite structure, and the degree of Cu substitution was up to 20 mol % in the synthesized nanocrystals. Morphology characterization showed that the size of the γ-PGA/CuxHAp nanoparticles decreases with the increased copper content. γ-PGA/CuxHAp exhibited a steady release of Cu ions. Two experimental protocols were applied to compare the antibacterial activity of the γ-PGA/CuxHAp samples. A positive correlation was observed between Cu content and the inhibition of bacterial growth. The study also showed that nanoparticles with smaller particle sizes exhibited higher antibacterial activities than the larger particles. Endothelial and osteoblast cells rapidly proliferated on γ-PGA/CuxHAp, whereas high concentrations (20 mol %) of Cu ions reduced cell proliferation. In the rat calvarial defect model, some γ-PGA/CuxHAp samples such as γ-PGA/CuxHAp (x = 8, 16) showed efficient bone regeneration capacities at 12 weeks post implantation. Thus, the multibiofunctional γ-PGA/CuxHAp nanocomposite exhibited degradative, angiogenic, bactericidal and bone regenerative properties, providing a potential means to address some of the critical challenges in the field of bone tissue engineering.

Polyglutamic Acid

Bacterial growth

10.1021/acsbiomaterials.0c00096

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Citations (17)

Complexation and conformation of lead ion with poly-γ-glutamic acid in soluble state

PLoS ONE (2019)

Lingling Wang Yamin Liu Xiulin Shu Shunying Lu Xiao‐Bao Xie

Complexation of microbial polymer in soluble state could impact the solubility, mobility, and bioavailability of heavy metals in the environment. The complexation of a bacterial exopolymer, poly-γ-glutamic acid (γ-PGA), with Pb2+ was studied using the polarographic method and circular dichroism measurement in soluble state. The number of available binding sites was determined based on the Chau's method and was found to be 0.04, 1.12, 3.56 and 4.51 mmol/(g dry weight of γ-PGA) at pH 3.4, 4.2, 5.0 and 6.2, respectively. Further, the number of binding sites was determined based on the Ruzic's method and was found to be 3.60 and 4.41 mmol/(g dry weight of γ-PGA) for pH 5.0 and 6.2, respectively. The constant (expressed as log K) values were 5.8 and 6.0 at pH 5.0 and 6.2. Compared to biopolymers secreted by other microorganisms, such as extracellular polymeric substances extraction from activated sludge, γ-PGA was a more efficient Pb2+ carrier from pH 5.0 to 6.2. The secondary structure of γ-PGA varied significantly when Pb2+ added. Ca2+ or Mg2+ replace a portion of the adsorbed Pb2+. However, the portion of Pb2+ involved in changing the γ-PGA conformation was not easily replaced by Ca2+ and Mg2+.

Exopolymer

Extracellular polymeric substance

Glutamic acid

10.1371/journal.pone.0218742

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Citations (13)

Evaluation of the association between natural mold resistance and chemical components of nine wood species

BioResources (2018)

Jing Feng Li ChengBin Juan Chen Mingjie Chen Xiulin Shu

The association between natural mold resistance and the wood’s chemical components was studied for nine wood species. The mold resistance of the different wood species was tested by artificially accelerated tests and scanning electron microscopy (SEM). The chemical components were analyzed by gas chromatography-mass spectrometry (GC-MS). The results indicated that the sequence of mold resistance of different wood flours was as follows, from greatest to least resistance: spruce, Mongolian pine and camphor, toon and teak, eucalyptus (E. urophylla and E. grandis × E. urophylla), sweetgum, and castor straw fiber. GC-MS analysis indicated that the total contents of the antifungal compounds present in all wood flour extractives were consistent with the sequence of mold resistance of wood flour. This suggested that the natural durability of wood flour against molds was affected by its chemical components.

Chemical resistance

10.15376/biores.13.3.6524-6541

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Citations (9)