نتایج جستجو برای: پلیمر plga

تعداد نتایج: 7972  

2013
De-Xin Wang Yao He Long Bi Ze-Hua Qu Ji-Wei Zou Zhen Pan Jun-Jun Fan Liang Chen Xin Dong Xiang-Nan Liu Guo-Xian Pei Jian-Dong Ding

PURPOSE Poly(lactic-co-glycolic acid) (PLGA) is excellent as a scaffolding matrix due to feasibility of processing and tunable biodegradability, yet the virgin scaffolds lack osteoconduction and osteoinduction. In this study, nano-hydroxyapatite (nHA) was coated on the interior surfaces of PLGA scaffolds in order to facilitate in vivo bone defect restoration using biomimetic ceramics while keep...

2013
Stacie J Fairley Shree R Singh Abebayehu N Yilma Alain B Waffo Praseetha Subbarayan Saurabh Dixit Murtada A Taha Chino D Cambridge Vida A Dennis

We recently demonstrated by in vitro experiments that PLGA (poly D, L-lactide-co-glycolide) potentiates T helper 1 (Th1) immune responses induced by a peptide derived from the recombinant major outer membrane protein (rMOMP) of Chlamydia trachomatis, and may be a promising vaccine delivery system. Herein we evaluated the immune-potentiating potential of PLGA by encapsulating the full-length rMO...

2017
Yong Zheng Junying Sun

Background: The innovative repair materials for the bones are still lacking. So, we synthesized a porous microsphere by using basic fibroblast growth factor (bFGF), polylactide-co-glycolide (PLGA), poly L-lactic acid (PLLA) and hydroxylapatite (HAP), and its biocompatibility with bone marrow mesenchymal stem cells (BM-MSCs) was investigated in vitro. Methods: A modified solvent extraction/evapo...

Journal: :research in pharmaceutical sciences 0

in this study, the folate decorated biodegradable poly (lactide-co-glycolide) (plga) nanoparticles were developed for tumor targeting of anticancer agents. due to the overexpression of the folate receptor on tumor surface, the folate has been efficiently employed as a targeting moiety for various anticancer agents to avoid their non-specific attacks on normal tissues and also to increase their ...

2012
Wen-Pin Su Fong-Yu Cheng Dar-Bin Shieh Chen-Sheng Yeh Wu-Chou Su

BACKGROUND Effective cancer chemotherapy remains an important issue in cancer treatment, and signal transducer and activator of transcription-3 (Stat3) activation leads to cellular resistance of anticancer agents. Polymers are ideal vectors to carry both chemotherapeutics and small interfering ribonucleic acid (siRNA) to enhance antitumor efficacy. In this paper, poly(lactic-co-glycolic acid) (...

2016
Khaled A. Elsaid Anand Ubhe Ziyad Shaman Gerard D’Souza

BACKGROUND Interleukin-1 receptor antagonist (IL-1 ra) can be disease-modifying in posttraumatic osteoarthritis (PTOA). One limitation is its short joint residence time. We hypothesized that IL-1 ra encapsulation in poly (lactide-co-glycolide) (PLGA) microspheres reduces IL-1 ra systemic absorption and provides an enhanced anti-PTOA effect. METHODS IL-1 ra release kinetics and biological acti...

Mahdi Ghorbani, Maryam Hashemi Mohammad Hossein Bahreyni Toosi Mohammad Ramezani Nima Hamzian,

Abstract The aim of this study was to develop a novel multifunctional nanoparticle, which encapsulates SPION and Gemcitabine in PLGA±PEG to form multifunctional drug delivery system. For this aim, super paramagnetic iron oxide nanoparticles (SPIONs) were synthesized and encapsulated simultaneously with Gemcitabine (Gem) in PLGA±PEG copolymers via W/O/W double emulsification me...

Journal: :Tissue engineering. Part C, Methods 2014
Yahfi Talukdar Pramod Avti John Sun Balaji Sitharaman

Preclinical, noninvasive imaging of tissue engineering polymeric scaffold structure and/or the physiological processes such as blood oxygenation remains a challenge. In vitro or ex vivo, the widely used scaffold characterization modalities such as porosimetry, electron or optical microscopy, and X-ray microcomputed tomography have limitations or disadvantages-some are invasive or destructive, o...

Journal: :European cells & materials 2008
S Munirah S H Kim B Hi Ruszymah G Khang

Our preliminary results indicated that fibrin and poly(lactic-co-glycolic acid) (PLGA) hybrid scaffold promoted early chondrogenesis of articular cartilage constructs in vitro. The aim of this study was to evaluate in vivo cartilaginous tissue formation by chondrocyte-seeded fibrin/PLGA hybrid scaffolds. PLGA scaffolds were soaked carefully, in chondrocyte-fibrin suspension, and polymerized by ...

2016
Mao Pang Tao Shu Rui-Qiang Chen Chang Liu Lei He Yang Yang Adham Sameer A Bardeesi Cheng-Kai Lin Liang-Ming Zhang Xuan Wang Bin Liu Li-Min Rong

Objective: This study attempted to graft neural precursor cells (NPCs) differentiated from mouse induced pluripotent stem cells (iPSc) with gelatin sponge-electrospun Poly (lactic-co-glycolic acid)-Polyethylene glycol (PLGA/ PEG) nanofibers into transected rat spinal cords and to investigate whether the tissue engineering scaffolds could promote motor functional recovery. Methods: iPSc were dif...

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