Article
Polymer Science
Elisabeth Rossegger, Rita Hoeller, David Reisinger, Jakob Strasser, Mathias Fleisch, Thomas Griesser, Sandra Schloegl
Summary: A new transesterification catalyst has been introduced to overcome the limitations of traditional catalysts, allowing for the successful fabrication of precise 3D objects with features as small as 500 microns. This material, with shape memory and thermal mendability features, can be utilized for additive manufacturing of structural and functional devices in soft robotics, biomedicine, and electronics.
Article
Chemistry, Physical
Hongye Guo, Mohand O. Saed, Eugene M. Terentjev
Summary: In this study, the Michael addition 'click' chemistry was used to graft acrylate-terminated mesogenic groups onto the polysiloxane backbone polymer chain. The relationship between the molecular structure of the mesogenic side groups and the structure and properties of the resulting liquid crystalline elastomers was investigated. The study demonstrated the shape-memory effect of smectic elastomers and highlighted the semi-crystalline nature of non-polar elastomers and the role of side-by-side rod dimerization of polar mesogens in increasing smectic layer spacing.
Article
Nanoscience & Nanotechnology
J. Y. Del C. Pereyra, C. A. Barbero, D. F. Acevedo, E. Yslas
Summary: This study reports the antibacterial activity of a nanocomposite made of zinc oxide nanoparticles dispersed in a poly(acrylamide-co-hydroxyethylmethacrylate) matrix against Pseudomonas aeruginosa. The in situ synthesis of ZnONPs inside the crosslinked network of PAAm-Hema is described and the physicochemical properties of the nanocomposite are analyzed. The results show that the nanocomposite has the potential to be used as an antimicrobial agent in biomedical applications.
Article
Materials Science, Multidisciplinary
James R. Brown, Jana Herzberger, Glenn Allen Spiering, Emily Wilts, Robert B. Moore, Timothy E. Long
Summary: Degradable poly(ethylene glycol) (PEG) hydrogels with acetal functionalization provide a versatile platform for drug delivery and tissue engineering. The tailored morphologies within the acetal-functionalized hydrogels contribute to the fundamental understanding of multiphase network degradation. The study demonstrates that controlled stoichiometric imbalance of thiol and acrylate functionalities can achieve predictable plateau storage moduli of hydrogels.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
James R. Brown, Jana Herzberger, Glenn Allen Spiering, Emily Wilts, Robert B. Moore, Timothy E. Long
Summary: Degradable poly(ethylene glycol) (PEG) hydrogels with acetal functionalization provide a versatile platform for drug delivery and tissue engineering. The tailored morphologies within the acetal-functionalized hydrogels offer fundamental understanding of the multiphase network degradation.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Gaojian Lv, Lifang Sun, Hui Gao, Chengcheng Ma, Wen Li, Shougang Chen
Summary: The construction of heterojunction is an effective strategy to achieve charge separation and improve photocatalytic activity. In this study, stable reduced Cu2O/Ag/Bi2MoO6 nano-composites with high-efficiency antibacterial activities were synthesized. The results showed that Cu2O/Ag/BMO could promote electron-hole separation and extend the lifetime of photogenerated carriers, resulting in improved antimicrobial ability. The prepared Cu2O/Ag/BMO composites have great application prospects in the antifouling field.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Zhao-Xi Zhou, Wei Hu, Zhuowei Zhao, Heqing Fu
Summary: The development of a photochemically driven polymeric composite for dental restorative materials with antibacterial, biocompatibility, and outstanding mechanical properties is urgently needed for clinical application in stomatology. This study synthesized a series of polyurethane acrylate (PUA) prepolymers and antibacterial polyurethane acrylate quaternary ammonium salts (PUAQASs) and explored their mechanical and biological properties. The results showed that the composite material had excellent antibacterial properties and biocompatibility.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
V. Chaithanya Vinay, D. S. Mohan Varma, Mohammed Rehaan Chandan, Ponsubha Sivabalan, Amit Kumar Jaiswal, Sai Swetha, Beata Kaczmarek, A. Sionkowska
Summary: This study developed antibacterial auxetic polyurethane foams for use in seat cushions and hospital beds to prevent pressure sores. The foams exhibited enhanced antibacterial properties against various bacteria, as well as increased compression strength at higher strains when made using higher compression factors.
Article
Biotechnology & Applied Microbiology
Jiapu Wang, Xuefeng Wang, Ziwei Liang, Weiwei Lan, Yan Wei, Yinchun Hu, Longfei Wang, Qi Lei, Di Huang
Summary: By combining bionic inorganic particles and hydrogels to mimic the organic-inorganic characteristics of natural bone extracellular matrix, multifunctional hydrogels with bone tissue repair effects and excellent antibacterial activity have been developed, providing a promising minimally invasive treatment biomaterial in bone repair fields.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Jelena Krstic, Aleksandra Radosavljevic, Jelena Spasojevic, Nikolina Nikolic, Uros Jovanovic, Nadica Abazovic, Zorica Kacarevic-Popovic
Summary: Hydrogels consisting of radiation-degraded chitosan, poly(vinyl alcohol), and Ag nano-filler were synthesized using two-stage and single-stage procedures. The study found that hydrogels synthesized using the single-stage procedure exhibited stronger antibacterial activity, possibly due to the higher mobility of radiation-modified chitosan in the network.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xueqi Wu, Maochen Liu, Jiang Zhong, Yuting Zhong, Jinchuang Rong, Fei Gao, Yongluo Qiao, Liang Shen, Haifeng He
Summary: In this study, a self-healing hybrid polyurethane acrylate was synthesized by solution polymerization. The balance between mechanical performance and self-healing capacity was achieved by regulating the content of disulfide bonds and hard segments. The material exhibited excellent mechanical properties and showed great potential in industrial applications.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Noor Ul Ain, Farha Masood, Minaal Noor, Muhammad Farooq
Summary: This study demonstrates the potential use of nanocomposite hydrogels as wound dressing materials for the treatment of multidrug-resistant infected wounds. The physical, structural, mechanical, and antibacterial properties of the nanocomposite hydrogels were evaluated, showing good moisture retention capacities and antibacterial effects.
APPLIED CLAY SCIENCE
(2022)
Article
Engineering, Environmental
Jianzhong Ma, Chenyan Liu, Kai Yan
Summary: This study developed a leather coating surface with both hydrophobic and photocatalytic antibacterial properties, achieving antibacterial activities ranging from 99.98% to 99.99%. By utilizing dendritic fibrous nanosilica loaded with carbon quantum dots and MoS2 quantum dots, in combination with hydrophobic waterborne polyurethane acrylate, excellent antibacterial effects were achieved.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yamin Che, Cui Liu, Nian Li, Wei Guo, Min Xi, Shudong Zhang, Zhenyang Wang
Summary: Ideal thermal interface materials (TIMs) that can fill interfaces among components completely have emerged as a major strategy to enhance heat transfer. The light curing method is a good approach to obtain pre-filled TIMs, which can adequately fill micro-scale voids and cavities and replicate textures from the interfaces. By adding copper nanowires, a three-dimensional heat transfer network is formed to improve the thermal conductivity of the matrix. The resulting composites show excellent electrical insulation, good flexibility, and potential for practical applications.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Sevgi Balcioglu, Canbolat Gurses, Imren Ozcan, Azibe Yildiz, Suleyman Koytepe, Hakan Parlakpinar, Nigar Vardi, Burhan Ates
Summary: Hard or soft tissue adhesives are being developed as a promising replacement for traditional wound closure methods. By combining various components such as aliphatic isophorone diisocyanate, beta-cyclodextrin, proteins, and PEGs, a new adhesive with high adhesion strength, biocompatibility, and injectable properties has been created. This adhesive formulation shows strong potential for tissue engineering applications due to its excellent cell/tissue viability, fast curing, strong adhesion, high antibacterial properties, and injectability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Multidisciplinary
Angel Romo-Uribe, Araceli Flores, Maraolina Dominguez-Diaz
EMERGING MATERIALS RESEARCH
(2019)
Article
Multidisciplinary Sciences
Albanelly Soto-Quintero, Nekane Guarrotxena, Olga Garcia, Isabel Quijada-Garrido
SCIENTIFIC REPORTS
(2019)
Article
Polymer Science
Angel Romo-Uribe
Summary: This research demonstrates the tuning of conformation in semiflexible polymers under different solvent conditions using shear rheology, showing changes in persistence length and scaling law. The results provide insights into the behavior of these polymers in solution and help understand the Saito scaling for anisotropic particles.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Angel Romo-Uribe
POLYMERS FOR ADVANCED TECHNOLOGIES
(2020)
Article
Polymer Science
Angel Romo-Uribe, Joseph Lichtenhan, Adriana Reyes-Mayer, Manuela Calixto-Rodriguez, Estela Sarmiento-Bustos, Mauricio Yanez-Lino
POLYMERS FOR ADVANCED TECHNOLOGIES
(2020)
Article
Materials Science, Multidisciplinary
Angel Romo-Uribe, Joseph D. Lichtenhan
MACROMOLECULAR MATERIALS AND ENGINEERING
(2020)
Article
Polymer Science
Eneko Arrospide, Maria Asuncion Illarramendi, Igor Ayesta, Nekane Guarrotxena, Olga Garcia, Joseba Zubia, Gaizka Durana
Summary: This study detailed two fabrication processes of polymer optical fibers doped with lumogen dyes, comparing their optical efficiencies and concentration factors. Results showed better performance in fibers manufactured through casting. Additionally, the photostability of the fibers doped with lumogen red was studied under solar light radiation, showing high thermal stability.
Article
Polymer Science
Isabel Quijada-Garrido, Olga Garcia
Summary: The development of fluorescent water stable copper nanoclusters using amphiphilic block copolymers as templates shows promising results for synthesizing high luminescent nanohybrids in water. The composition and architecture of the polymers, thiol content, and nanoparticle size are key factors influencing the emission properties of the CuNC nanohybrids.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Polymer Science
Maria Moral-Zamorano, Isabel Quijada-Garrido, Veronica San-Miguel, Berna Serrano, Juan Baselga, Saud Hashmi, Florian J. Stadler, Alberto Garcia-Penas
Summary: The functionalization of smart polymers with organometallic complexes affects the thermoresponsive behavior, specifically influencing segments composed of NIPAM. Controlling the reduction of the LCST transition amplitude can be achieved through the functionalization of copolymers.
Article
Materials Science, Multidisciplinary
Angel Romo-Uribe
Summary: An in vitro study using PHB scaffolds derived from A. vinelandii strains suggests that these scaffolds are a feasible alternative for bone tissue regeneration, with high cell viability and healthy morphology.
Article
Polymer Science
Albanelly Soto-Quintero, Patricia Gonzalez-Alva, Alba Covelo, Miguel Angel Hernandez
Summary: Biomaterial scaffolds obtained through electrospinning of PVA with different concentrations of SA showed a gradual degradation rate under physiological conditions. The dielectric properties of the scaffolds correlated with their degradation rate, and higher roughness promoted cell proliferation and adhesion.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Jon Grandes, Maria Asuncion Illarramendi, Eneko Arrospide, Inaki Bikandi, Ibon Aramburu, Nekane Guarrotxena, Olga Garcia, Joseba Zubia
Summary: This paper investigates the temperature effects on the luminescence of polymer optical fibers doped with Lumogen dyes. The results show that the fiber doped with Lumogen red almost fully recovers its signal when subjected to thermal cycles. The emitted spectra shift towards red or blue when the fiber sample reaches a stationary state, with a temperature sensitivity of approximately 0.07 nm/°C.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Polymer Science
Angel Romo-Uribe
Summary: Molecular networks of PEG and POSS can form mechanically robust hydrogels with shape memory behavior. These hydrogels can remember their permanent shape upon water submersion, release stress, and exhibit soft actuation. They also exhibit antibacterial properties, making them suitable for various applications.
Article
Chemistry, Multidisciplinary
Leire San Jose, Olga Garcia, Isabel Quijada-Garrido, Mar Lopez-Gonzalez
Summary: Zinc oxide quantum dots (ZnO QDs) possess remarkable photoluminescent, biocompatible, biodegradable, and antibacterial properties, making them suitable for bio-related and technological applications. In this study, stable fluorescent hybrid ZnO QDs were synthesized using different polymers as templates and ligands. The presence of hydroxylated homopolymers and block copolymers significantly enhanced the fluorescence of ZnO QDs. The synthesized hybrid ZnO QDs exhibited uniform and stable enhanced photoluminescence in aqueous media. Additionally, the hybrid ZnO QDs synthesized in this study showed high selectivity for detecting Cr6+, Fe2+, or Cu2+ in water.
Article
Chemistry, Multidisciplinary
Jesus Benavides, Isabel Quijada-Garrido, Olga Garcia