Article
Biochemistry & Molecular Biology
Leah Mursaleen, Brendon Noble, Satyanarayana Somavarapu, Mohammed Gulrez Zariwala
Summary: This study successfully incorporated HT and HT+DFO into P68+DQA nanocarriers, enabling enhanced protection against PD-related oxidative stress through BBB model delivery.
Article
Polymer Science
Maria Herrero-Herrero, Jose Antonio Gomez-Tejedor, Ana Valles-Lluch
Summary: Tailored membranes with a fiber diameter of 1.8 μm were electrospun from PLGA and PCLGA solutions by adjusting electrospinning and polymer solution parameters. PCLGA, with its amorphous morphology, required the addition of a salt to increase conductivity for successful electrospinning, presenting notable difficulties due to its structure. Interestingly, PCLGA, with a higher glycolic acid molar fraction, could be successfully electrospun, a feat not previously reported.
Review
Engineering, Biomedical
Duoyi Zhao, Tongtong Zhu, Jie Li, Liguo Cui, Zhiyu Zhang, Xiuli Zhuang, Jianxun Ding
Summary: This article comprehensively reviews the research and applications of artificial bone-substitute materials based on PLGA and its composites, discussing their potential and challenges in bone regeneration.
BIOACTIVE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Rong Wang, Xiaojie Sun, Lanlan Chen, Wenbin Liang
Summary: In this study, biodegradable blends of PGA and PBAT with in situ compatibilization using MDI were prepared. The addition of PBAT was found to increase the complex viscosity and storage modulus of the blends, leading to improved compatibility and impact strength. The morphology of the dispersed phase evolved from spherical structure to in situ microfiber, enhancing interfacial adhesion and improving toughness.
Article
Polymer Science
Bingxue Jiang, Yisong Wang, Zhengqi Peng, Khak Ho Lim, Qingyue Wang, Shengbin Shi, Jieyuan Zheng, Xuan Yang, Pingwei Liu, Wen-Jun Wang
Summary: In this study, PBAT-co-PGA copolyesters were synthesized by tailoring the chain structure of PBAT with the introduction of poly(glycolic acid) (PGA). The PBAT-co-PGAs exhibited improved crystallization ability, mechanical properties, degradation properties, and aging resistance compared to PBAT.
Article
Materials Science, Multidisciplinary
Eva M. M. Eger, Seema Agarwal
Summary: This study focuses on the characterization and reprocessing ability of PLGA in the form of dynamic covalent networks. The synthesized networks with dynamic bonding and debonding have enhanced thermomechanical properties and maintain the potential for thermal reprocessing and recycling like thermoplastics.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yiye Lu, Geoffrey W. Coates
Summary: Poly(lactic-co-glycolic acid) (PLGA) is widely used in various biomedical applications due to its biodegradability and biocompatibility. This study successfully developed a method to synthesize syndioenriched, alternating PLGA from racemic methyl-glycolide (rac-MeG), and confirmed the high degree of alternation of the comonomer sequence and moderate syndiotacticity within the polymer backbone stereoconfiguration through NMR investigations.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Thais Dolzany de Oliveira, Luiz R. Travassos, Denise Costa Arruda, Dayane Batista Tada
Summary: This study focused on evaluating different surface functionalization strategies to promote cancer cell uptake and intracellular targeting of PLGA NPs, revealing that cell-penetrating peptides successfully directed PLGA NPs to the mitochondria and nuclei.
JOURNAL OF BIOMEDICAL NANOTECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yiye Lu, Geoffrey W. Coates
Summary: Poly(lactic-co-glycolic acid) (PLGA) is a biodegradable and biocompatible polymer used in biomedical applications. This study presents a method for synthesizing syndioenriched, alternating PLGA from racemic methyl-glycolide with the use of an optimized racemic aluminum catalyst. The resulting material has a high degree of alternation in copolymer sequence and moderate syndiotacticity, and is amorphous, making it suitable for drug complexation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Polymer Science
Alastair Little, Alan M. Wemyss, David M. Haddleton, Bowen Tan, Zhaoyang Sun, Yang Ji, Chaoying Wan
Summary: The study investigates the effects of various reaction conditions on the synthesis of PLGA25, showing how factors such as reaction temperature, initiator concentration, and catalyst concentration impact the molecular weight, monomer conversion, and thermal properties.
Article
Pharmacology & Pharmacy
Wan-Yi Liu, Yun-Shan Hsieh, Yu-Tse Wu
Summary: This study aimed to develop a nanoparticle formulation for the oral delivery of beta-carotene. The results showed that the formulation significantly enhanced the release and intestinal permeability of the drug, suggesting its potential for oral administration.
Article
Materials Science, Multidisciplinary
Ying Mao, Robert Guidoin, Yan Li, Gaetan Brochu, Ze Zhang, Lu Wang
Summary: Blending L-alpha-phosphatidylcholine (PC) with PLGA to yield hybrid scaffolds alters the physical properties and wettability, affecting biodegradability and biocompatibility. The addition of PC decreases fiber diameter and increases porosity and hydrophilicity, although it also reduces mechanical strength of the scaffolds.
MATERIALS & DESIGN
(2021)
Article
Biochemistry & Molecular Biology
Seounghun Lee, Hyo-Jung Shin, Chan Noh, Song- Kim, Young-Kwon Ko, Sun-Yeul Lee, Chaeseong Lim, Boohwi Hong, Sin-Young Yang, Dong-Woon Kim, Won-Hyung Lee, Yoon-Hee Kim
Summary: The activation of NF-kappa B in microglia is crucial for the development of neuropathic pain. Inhibitor of I kappa B (I kappa B) blocks NF-kappa B activation, and IKBKB is responsible for breaking down I kappa B to inhibit NF-kappa B activity. Delivering IKBKB siRNA via PLGA nanoparticles effectively reduces pain response and inflammatory mediators in SNL rats, suggesting its potential as a treatment for neuropathic pain.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Pharmacology & Pharmacy
Kostas Tsachouridis, Evi Christodoulou, Alexandra Zamboulis, Anna Michopoulou, Panagiotis Barmpalexis, Dimitrios N. Bikiaris
Summary: The present study evaluates the use of novel copolymers for the preparation of paclitaxel loaded nanoparticles. The copolymers showed good enzymatic hydrolysis and low cytotoxicity, making them suitable drug matrix/carriers. The prepared nanoparticles exhibited small size, good drug loading and encapsulation efficiency. In vitro dissolution analysis showed biphasic drug dissolution profiles.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Chang Wei, Peng Guo, Mingfu Lyu, Bo Wang, Chao Li, Lin Sang, Zhiyong Wei
Summary: In this study, high-barrier poly(butylene adipate-terephthalate)/polyglycolic acid (PBAT/PGA) blending films were prepared using melt-compounding and extrusion-blowing techniques with the addition of antioxidant compounds. The incorporation of PGA improved the mechanical properties and water vapor barrier performance of the films. The use of a chain extender achieved good compatibility between PBAT and PGA. Antioxidant compounds enhanced the thermal stability of the films. UV-accelerated degradation was observed, but the water vapor barrier permeability remained well-maintained due to the high crystallinity of the PGA region. These findings highlight the potential of PBAT/PGA films as mulching films.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Endocrinology & Metabolism
Athanasios Lourbopoulos, Uta Mamrak, Stefan Roth, Matilde Balbi, Joshua Shrouder, Arthur Liesz, Farida Hellal, Nikolaus Plesnila
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
(2017)
Article
Critical Care Medicine
Xiang Mao, Nicole A. Terpolilli, Antonia Wehn, Shiqi Cheng, Farida Hellal, Baiyun Liu, Burcu Seker, Nikolaus Plesnila
JOURNAL OF NEUROTRAUMA
(2020)
Article
Chemistry, Multidisciplinary
Igor Khalin, Doriane Heimburger, Nina Melnychuk, Mayeul Collot, Bernhard Groschup, Farida Hellal, Andreas Reisch, Nikolaus Plesnila, Andrey S. Klymchenko
Article
Neurosciences
Antonia Clarissa Wehn, Igor Khalin, Marco Duering, Farida Hellal, Carsten Culmsee, Peter Vandenabeele, Nikolaus Plesnila, Nicole Angela Terpolilli
Summary: Research indicates that necroptosis signaling may play a role in causing progressive chronic brain damage and cognitive decline after traumatic brain injury (TBI). Inhibiting the expression of RIPK1 and RIPK3 in neurons can significantly reduce chronic brain damage and improve memory function post-TBI.
ACTA NEUROPATHOLOGICA COMMUNICATIONS
(2021)
Article
Biochemical Research Methods
Susanne M. Schwarzmaier, Maximilian R. O. Knarr, Senbin Hu, Ali Ertuerk, Farida Hellal, Nikolaus Plesnila
Summary: This study investigated the effect of different perfusion pressures (PPs) on cerebral vasculature and aimed to define the optimal PP for preserving both vascular integrity and tissue fixation in brain tissue. The results showed that a PP between 125 and 150 mmHg is optimal for preserving the cerebral vasculature and neuronal structures.
JOURNAL OF NEUROSCIENCE METHODS
(2022)
Article
Chemistry, Multidisciplinary
Igor Khalin, Nagappanpillai Adarsh, Martina Schifferer, Antonia Wehn, Bernhard Groschup, Thomas Misgeld, Andrey Klymchenko, Nikolaus Plesnila
Summary: The study investigates the distribution of lipid nano-emulsion droplets in the mouse brain after traumatic brain injury, revealing that microvascular occlusions serve as gates for the transport of nanocarriers across the blood-brain barrier. Through in vivo imaging, it was found that LNDs of both 30nm and 80nm sizes accumulate at vascular occlusions after TBI, with the smaller 30nm particles able to cross into the brain parenchyma and reach neurons.
Meeting Abstract
Endocrinology & Metabolism
S. Valero Freitag, F. B. Seker, F. Hellal, N. Plesnila
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
(2019)
Meeting Abstract
Critical Care Medicine
Xiang Mao, Bernhard Groschup, Susana Valero-Freitag, Nikolaus Plesnila, Nicole A. Terpolilli, Farida Hellal
JOURNAL OF NEUROTRAUMA
(2018)
Meeting Abstract
Critical Care Medicine
Xiang Mao, Nicole A. Terpolilli, Farida Hellal, Nikolaus Plesnila
JOURNAL OF NEUROTRAUMA
(2018)
Meeting Abstract
Critical Care Medicine
Xiang Mao, Nicole A. Terpolilli, Farida Hellal, Nikolaus Plesnila
JOURNAL OF NEUROTRAUMA
(2017)
Meeting Abstract
Endocrinology & Metabolism
A. Lourbopoulos, U. Mamrak, C. Pan, R. Cai, A. Ghasemigharagoz, F. P. Quacquarelli, F. Hellal, A. Ertuerk, N. Plesnila
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
(2017)
Meeting Abstract
Endocrinology & Metabolism
A. Lourbopoulos, U. Mamrak, J. Shrouder, S. Roth, M. Balbi, A. Liesz, F. Hellal, N. Plesnila
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
(2017)
Article
Nanoscience & Nanotechnology
Daniela Rubanova, Svitlana Skoroplyas, Alena Libanska, Eva Randarova, Josef Bryja, Michaela Chorvatova, Tomas Etrych, Lukas Kubala
Summary: This study explored the use of nanocarriers to deliver dexamethasone for treating rheumatoid arthritis. The results showed that this method increased the accumulation of dexamethasone in the arthritic area, had a dose-dependent healing effect, and reduced the accumulation of the RA mediator RANKL. This study provides a feasible strategy for improving rheumatoid arthritis therapy.
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE
(2024)
Article
Nanoscience & Nanotechnology
Thanpisit Lomphithak, Apiwit Sae-Fung, Simone Sprio, Anna Tampieri, Siriporn Jitkaew, Bengt Fadeel
Summary: In this study, iron-doped hydroxyapatite (FeHA) was evaluated as a potential nanomedicine approach for treating PDAC. The results showed that FeHA, in combination with a sublethal dose of the GPX4 inhibitor RSL3, could trigger ferroptosis in KRAS mutant PANC-1 cells while sparing normal human cells. The induction of ferroptosis by FeHA plus RSL3 was found to be dependent on the metalloreductase STEAP3 in PDAC cells.
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE
(2024)
Review
Nanoscience & Nanotechnology
Marco Felipe Salas-Orozco, Ana Cecilia Lorenzo-Leal, Idania de Alba Montero, Nuria Patino Marin, Miguel Angel Casillas Santana, Horacio Bach
Summary: The emergence of antibiotic-resistant bacteria in severe infections is a growing concern, particularly in hospital environments. Metal-based nanomaterials have shown potential as an alternative to combat these bacteria, but there is a risk of bacterial resistance and environmental accumulation.
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE
(2024)