4.7 Article

Fabrication and antibacterial properties of ZnO-alginate nanocomposites

Journal

CARBOHYDRATE POLYMERS
Volume 88, Issue 1, Pages 263-269

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2011.12.005

Keywords

Alginate; Nanocomposite; ZnO; Nanoparticles; Antimicrobial activity

Funding

  1. Ministry of Education and Science, Republic of Serbia [172056, 45020]

Ask authors/readers for more resources

Alginate was used as a controlled environment for the growth of ZnO nanoparticles. The formation of nanostructured particles was confirmed by a blue shift in the onset of the optical absorption with respect to bulk ZnO. From the XRD measurements it was found that the obtained ZnO nanoparticles have a hexagonal crystal structure. The emission spectrum of the nanocomposite is dominated by a strong band-to-band recombination, while the emission from the ZnO defect states depended on the preparation conditions. Besides showing the presence of Zn 2p, O is, Na 1s and C 1s core levels, the XPS analysis also showed that the O is spectra can be resolved into two lines that are attributed to the presence of OH groups on the surface of the particles and ZnO, respectively. Antimicrobial tests revealed that the ZnO-alginate nanocomposite exhibits a strong activity against the common pathogens Staphylococcus aureus and Escherichia coli. (C) 2011 Elsevier Ltd. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Polymer Science

Development of value-added polyethylene grades with extended service lifetime: Weathering resistant flame retarded materials for outdoor applications

Athanasios D. Porfyris, Stamatina N. Vouyiouka, Adriaan S. Luyt, Dimitrios M. Korres, Sarah S. Malik, Soumia Gasmi, Michael Grosshauser, Rudolf Pfaendner, Constantine D. Papaspyrides

Summary: The article focuses on the development of customized polyolefin formulations with low flammability and high weathering resistance to provide value-added polyethylene grades with extended service lifetime. The compounds achieved V0 classification in UL94V flammability tests while maintaining mechanical properties to a large extent, showing promise for outdoor applications where long-term weathering stability and flame retardance are important.

JOURNAL OF APPLIED POLYMER SCIENCE (2021)

Article Chemistry, Physical

Condensation Effects on Electron Chiral Asymmetries in the Photoionization of Serine: From Free Molecules to Nanoparticles

Sebastian Hartweg, Gustavo A. Garcia, Dusan K. Bozanic, Laurent Nahon

Summary: A comparative study of VUV photoelectron spectroscopy and photoelectron circular dichroism was conducted between gas phase enantiomers of the amino acid serine and their homochiral nanoparticles, revealing a significant asymmetry and demonstrating the potential of the PECD technique as a sensitive probe of condensation effects in chiral aerosol particles.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2021)

Article Chemistry, Physical

Fluorescence microscopy and photodielectric characterization studies of the composite films of polyvinyl alcohol and tryptophan functionalized silver nanoparticles

Dusan K. Bozanic, Radovan Dojcilovic, Jelena D. Pajovic, Dragana Tosic, Dusko Dudic, Matthieu Refregiers, Vladimir Djokovic

Summary: In this study, fluorescent nanocomposite films were prepared by solution mixing of polyvinyl alcohol (PVA) and tryptophan functionalized silver (AgTrp) nanoparticles. The distribution of AgTrp nanoparticles within the polymer matrix was tracked using synchrotron excitation deep-ultraviolet fluorescence imaging. The presence of AgTrp nanoparticles resulted in the pronounced growth of dendrite-like structures, which was confirmed by various imaging techniques. Both tryptophan and AgTrp nanoparticles affected the thermal properties of the matrix, reducing crystallinity and increasing the glass transition temperature of PVA. Furthermore, the films showed a significant increase in conductance under illumination with 250 nm light, with the relative changes reaching almost 200% compared to the dark condition.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2022)

Article Chemistry, Physical

Electronic Properties of Silver-Bismuth Iodide Rudorffite Nanoplatelets

Danijela Danilovic, Aleksandar R. . Milosavljevic, Pitambar Sapkota, Radovan Dojcilovic, Dragana Tosic, Nenad Vukmirovic, Milan Jocic, Vladimir Djokovic, Sylwia Ptasinska, Dusan K. Bozanic

Summary: In this study, a simple route for fabricating silver-bismuth iodide nanoplatelets was reported. The valence band electronic structure of the isolated nanoplatelets was investigated, and the optical properties were analyzed using UV-vis absorption and photoluminescence spectroscopies, as well as density functional theory calculations.

JOURNAL OF PHYSICAL CHEMISTRY C (2022)

Article Polymer Science

Comparative experimental and modelling study of the thermal and thermo-mechanical properties of LLDPE/wax blends

Mafereka F. T. Mosoabisane, Adriaan S. Luyt, Cornelia G. C. E. van Sittert

Summary: This article investigates the influence of molecular interaction and morphology on the thermal and mechanical properties of LLDPE/wax blends. The cooling rate is not sufficient to determine the interactions between the molecules in the blends, therefore, samples were cooled at different rates to model the thermal and mechanical properties. The results show the cocrystallization of wax with LLDPE and confirm the rapid crystallization of both components.

JOURNAL OF POLYMER RESEARCH (2022)

Article Engineering, Electrical & Electronic

Velocity map imaging VUV angle-resolved photoelectron spectroscopy of isolated silver sulfide nanoparticles

Danijela Danilovic, Dusan K. Bozanic, Gustavo A. Garcia, Laurent Nahon, Una Stamenovic, Vesna V. Vodnik, Vladimir Djokovic

Summary: The angle-resolved photoelectron spectroscopy of isolated silver sulfide nanoparticles was conducted using velocity map imaging technique. The results show the maximum energy of the valance band and the minimum energy of the conduction band of the nanoparticles, and the onset of inelastic scattering at around 1 eV.

OPTICAL AND QUANTUM ELECTRONICS (2022)

Article Polymer Science

AC Conductivity of Gamma Irradiated LDPE/ZIF-8 Composite

Filip Marinkovic, Blanka Skipina, Danijela Vukovic, Ernst H. G. Langner, Adriaan S. Luyt, Dusko Dudic

Summary: This article investigates the changing dielectric properties of a LDPE/ZIF-8 composite under gamma radiation. The study found that the conductivity of the samples increased linearly with increasing radiation dose, while the change in dielectric permittivity showed nonlinear behavior.

JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS (2022)

Article Polymer Science

Reusable Macroporous Oil Sorbent Films from Plastic Wastes

Junaid Saleem, Moghal Zubair Khalid Baig, Adriaan Stephanus Luyt, Rana Abdul Shakoor, Said Mansour, Gordon McKay

Summary: This study reports the production of reusable oil sorbent films by upcycling waste PE and PP. The sorbent films have a porous structure, good oleophilic properties, and high oil uptake capacity. Additionally, the thermal and mechanical properties of the films were also examined.

POLYMERS (2022)

Article Materials Science, Multidisciplinary

Free-Standing Porous and Nonporous Polyethylene Thin Films Using Spin Coating: An Alternate to the Extrusion-Stretching Process

Junaid Saleem, Zubair Khalid Baig Moghal, Adriaan S. Luyt, R. A. Shakoor, Gordon McKay

Summary: Spin coating is commonly used to prepare thin films with uniformity and controlled thickness. However, it has not been successful in producing free-standing thin films of polyolefins due to their insufficient strength. In this study, we have achieved free-standing thin films of polyolefins, such as polyethylene, with varying thickness. These films can be used for hydrophobic coating, filtration membranes, and oil-sorbents.

ACS APPLIED POLYMER MATERIALS (2023)

Article Polymer Science

Non-Wettable Microporous Sheets Using Mixed Polyolefin Waste for Oil-Water Separation

Junaid Saleem, Zubair Khalid Baig Moghal, Rana A. Shakoor, Adriaan S. Luyt, Gordon McKay

Summary: Mixed polyolefin-based waste requires immediate attention to mitigate its negative impact on the environment. The separation of these plastics is energy-intensive due to their similar densities, and they cannot be blended without compatibilizers due to their inherent incompatibility. This study presents non-wettable microporous sheets made from recycled polyethylene (PE) and polypropylene (PP), which demonstrate efficient oil-water separation and high reusability. These findings emphasize the importance of sustainable solutions for plastic recycling and mitigating oil spill problems.

POLYMERS (2023)

Article Chemistry, Physical

Electronic Properties of Silver-Bismuth Iodide Rudorffite Nanoplatelets

Danijela Danilovic, Aleksandar R. Milosavljevic, Pitambar Sapkota, Radovan Dojcilovic, Dragana Tosic, Nenad Vukmirovicc, Milan Jocic, Vladimir Djokovic, Sylwia Ptasinska, Dusan K. Bozanic

Summary: This study reports a lead-free material as a possible replacement for methylammonium lead halides in optoelectronic applications, which exhibits chemical stability and non-toxicity. Ag-Bi-I colloidal nanoplatelets were synthesized through a simple method in acetonitrile, and their optical and electronic properties were characterized by experiments and calculations.

JOURNAL OF PHYSICAL CHEMISTRY C (2022)

Article Religion

THE FRAGMENTED SELF A MULTIDISCIPLINARY APPROACH

Vladimir Djokovic

Summary: This article discusses the problem of unity or disunity of the self from the perspective of various disciplines. The first part focuses on the concept of self-fragmentation in Human sciences, particularly in Psychology and Cognitive sciences, and its relationship to religious views. The second part examines Jacques Derrida's work on deconstruction and its implications for the fragmentation of the self. The final part explores the potential splitting of the conscious self of the observer in quantum mechanical experiments.

EUROPEAN JOURNAL OF SCIENCE AND THEOLOGY (2022)

Review Chemistry, Applied

Molecular dynamics simulation techniques and their application to aroma compounds/cyclodextrin inclusion complexes: A review

Xingran Kou, Dongdong Su, Fei Pan, Xiwei Xu, Qingran Meng, Qinfei Ke

Summary: This review provides a systematic discussion of the application of molecular dynamics (MD) simulations in aroma compounds (ACs)/cyclodextrins (CDs) inclusion complexes (ICs). It covers the establishment of the simulation process, parameter selection, model evaluation, and various application cases, summarizing the major achievements and challenges of this method.

CARBOHYDRATE POLYMERS (2024)

Review Chemistry, Applied

Opportunities and challenges of fucoidan for tumors therapy

Haoyu Yu, Quanbin Zhang, Ammad Ahmad Farooqi, Jing Wang, Yang Yue, Lihua Geng, Ning Wu

Summary: Brown algae are rich in fucoidan, which has been found to have anti-cancer and anti-metastasis effects. Fucoidan inhibits tumor cell growth, proliferation, and metastasis, and also promotes immune responses in the tumor microenvironment.

CARBOHYDRATE POLYMERS (2024)

Review Chemistry, Applied

A review of chitosan in gene therapy: Developments and challenges

Liang Dong, Yanan Li, Hailin Cong, Bing Yu, Youqing Shen

Summary: Gene therapy is a revolutionary treatment that requires suitable vectors for protecting and releasing exogenous nucleic acids in target cells. Chitosan, as a non-viral vector, has gained attention due to its good biocompatibility and ability to load large amounts of nucleic acids. This paper summarizes the potential of chitosan and its derivatives as gene delivery vector materials, discusses factors influencing transfection efficiency, performance evaluation, ways to optimize infectious efficiency, and current research development directions. It also provides an outlook on the future prospects of chitosan.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Vancomycin-loaded methylcellulose aerogel scaffolds for advanced bone tissue engineering

Ana Iglesias-Mejuto, Beatriz Magarinos, Tania Ferreira-Goncalves, Ricardo Starbird-Perez, Carmen Alvarez-Lorenzo, Catarina Pinto Reis, Ines Ardao, Carlos A. Garcia-Gonzalez

Summary: This study developed a novel processing strategy to manufacture drug-loaded and personalized aerogels with nanostructures. The aerogels demonstrated bioactivity and antimicrobial effects, promoting bone regeneration and preventing infections in bone tissue engineering.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Micro assembly strategies for enhancing solid-state emission of cellulose nanocrystals and application in photoluminescent inks

Zhenxu Shi, Dimei Yang, Yan Zhou, Xinyu Chen, Lin Gan, Jin Huang

Summary: This study proposes a micro-assembly method to improve the photoluminescent properties of crystalline cellulose nanocrystals (CNCs) by organizing them within a sub-micrometer-sized metal-organic framework and coating with TiO2. The TiO2 coating prevents CNC assembly breakdown and allows information to be revealed using screenprinted labels for anti-counterfeiting purposes.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

High-throughput intact Glycopeptide quantification strategy with targeted-MS (HTiGQs-target) reveals site-specific IgG N-glycopeptides as biomarkers for hepatic disorder diagnosis and staging

Xuejiao Liu, Bin Fu, Jierong Chen, Zhenyu Sun, Dongdong Zheng, Zhonghua Li, Bing Gu, Ying Zhang, Haojie Lu

Summary: Liver disease is a major cause of global mortality, and identifying biomarkers for diagnosing its progression is crucial for improving outcomes. Targeted mass spectrometry is a powerful tool for verifying biomarker candidates and clinical applications, particularly for glycoproteins translation. However, the limitation of analyzing only one sample per run has become apparent. In this study, a high-throughput intact N-glycopeptides quantification strategy was developed, allowing the validation of 20 samples per run with an average analysis time of 3 minutes per sample. The strategy was applied in a cohort of 461 serum samples and identified a panel of 10 IgG N-glycopeptides that have strong clinical utility in evaluating the severity of liver disease.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

β-Glucan-conjugated anti-PD-L1 antibody enhances antitumor efficacy in preclinical mouse models

Qian Wang, Hao Jiang, Hongli Zhang, Weiqiao Lu, Xiao Wang, Wenfeng Xu, Jia Li, Youjing Lv, Guoyun Li, Chao Cai, Guangli Yu

Summary: This study proposes a novel strategy of antibody-beta-glucan conjugates (AGC) to enhance the antitumor immune response to immune checkpoint blockade (ICB) therapy. AGC demonstrated powerful tumor suppression and promoted interaction between tumor cells and dendritic cells (DCs), thereby enhancing immunotherapeutic benefits.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Enhanced porous membrane fabrication using cellulose acetate and citric acid: Improved structural integrity, thermal stability, and gas permeability

Chaeyeon Lee, Sojeong Lee, Sang Wook Kang

Summary: The study aims to enhance the properties of porous membranes by addressing the limitations associated with phase separation. By using cellulose acetate and citric acid, the researchers were able to fabricate membranes with improved mechanical strength and thermal stability. The cross-linking effect of citric acid resulted in a more uniform pore structure and higher porosity.

CARBOHYDRATE POLYMERS (2024)

Review Chemistry, Applied

Stimuli-responsive polysaccharide-based smart hydrogels for diabetic wound healing: Design aspects, preparation methods and regulatory perspectives

Tejaswini Kolipaka, Giriraj Pandey, Noella Abraham, Dadi A. Srinivasarao, Rajeev Singh Raghuvanshi, P. S. Rajinikanth, Vidya Tickoo, Saurabh Srivastava

Summary: This review focuses on the design and application of polysaccharide-based hydrogel wound dressings, highlighting aspects such as biocompatibility, biodegradability, drug entrapment, moisturizing ability, swelling, and mechanical properties. Additionally, various crosslinking methods and recent developments in stimuli-responsive hydrogels are discussed.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

A highly stretchable, adhesive, and antibacterial hydrogel with chitosan and tobramycin as dynamic cross-linkers for treating the infected diabetic wound

Anqi Xu, Nan Zhang, Shixing Su, Hongyu Shi, Daoqiang Lu, Xifeng Li, Xin Zhang, Xin Feng, Zhuohua Wen, Gengwu Ma, Mengshi Huang, Chi Huang, Yuqi Hu, Hao Yuan, Qinwen Liu, Daogang Guan, Jun Wang, Chuanzhi Duan

Summary: The study presents a one-pot radical polymerization method to fabricate a hydrogel with adhesive properties, which can effectively treat bacterial-infected diabetic wounds and accelerate wound healing.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Valorization of shrimp processing waste-derived chitosan into anti-inflammatory chitosan-oligosaccharides (CHOS)

Montarop Yamabhai, Munthipha Khamphio, Thae Thae Min, Chai Noy Soem, Nguyen Cao Cuong, Waheni Rizki Aprilia, Krisanai Luesukprasert, Karsidete Teeranitayatarn, Atthaphon Maneedaeng, Tina R. Tuveng, Silje B. Lorentzen, Simen Antonsen, Paiboon Jitprasertwong, Vincent G. H. Eijsink

Summary: The study investigates the bioconversion of chitosan into soluble anti-inflammatory chitosan oligosaccharides (CHOS) using an enzyme. The results show that the generated CHOS have anti-inflammatory activity, but the magnitude of the activity depends on the substrate and production process. Different methods of dissolving chitosan also affect the properties of CHOS. The study highlights the importance of quality assurance in CHOS preparations.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Structural elucidation of an active polysaccharide from Radix Puerariae lobatae and its protection against acute alcoholic liver disease

Wen Cao, Jiangping Wu, Xinya Zhao, Zixu Li, Jie Yu, Taili Shao, Xuefeng Hou, Lutan Zhou, Chunfei Wang, Guodong Wang, Jun Han

Summary: In this study, a water-soluble polysaccharide (PLP1) was successfully isolated and purified from Pueraria lobata. It was found that PLP1 was composed of specific glycosidic units and exhibited a better free radical-scavenging ability. Moreover, PLP1 effectively protected the liver against acute alcoholic liver disease (ALD) in mice.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Caffeic acid-grafted chitosan/sodium alginate/nanoclay-based multifunctional 3D-printed hybrid scaffolds for local drug release therapy after breast cancer surgery

Ya Su, Yaqian Liu, Xueyan Hu, Yueqi Lu, Jinyuan Zhang, Wenbo Jin, Wang Liu, Yan Shu, Yuen Yee Cheng, Wenfang Li, Yi Nie, Bo Pan, Kedong Song

Summary: A 3D printed scaffold based on carbon dots-curcumin nano-drug release has been developed for drug delivery after breast cancer surgery. The scaffold showed effective inhibition of tumor growth, antibacterial activity, and promotion of wound healing, making it a promising approach for preventing tumor recurrence.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Enzymatically-derived oligo-carrageenans interact with α-Gal antibodies and Galectin-3

Ekaterina Sokolova, Diane Jouanneau, Antonin Chevenier, Murielle Jam, Nathalie Desban, Pierre Colas, Elizabeth Ficko-Blean, Gurvan Michel

Summary: Carrageenans, a compound synthesized in red algae, have various biological properties and are valuable in the pharmaceutical and cosmetic industries. Their fine structure affects wound healing, oxidative processes, hemostasis, and inflammation. Enzymatic modification of carrageenans produces oligosaccharides that bind to natural human serum antibodies and specific antibodies, showing potential for therapeutic applications.

CARBOHYDRATE POLYMERS (2024)

Article Chemistry, Applied

Immuno-modulation of tumor and tumor draining lymph nodes through enhanced immunogenic chemotherapy by nano-complexed hyaluronic acid/polyvinyl alcohol microneedle

Yan Shi, Miao Yu, Kaijin Qiu, Tiantian Kong, Chunjing Guo, Wenxue Zhang, Daquan Chen, Ming Kong

Summary: In this study, functionalized transfersomes were developed to co-deliver doxorubicin and 1MT towards primary tumors and tumor draining lymph nodes via transdermal administration using microneedles. The results showed that the nano-complexed microneedles exhibited a stronger suppression in tumor growth compared to the intravenous group.

CARBOHYDRATE POLYMERS (2024)