نتایج جستجو برای: poly lactic acid nano composite

تعداد نتایج: 970251  

Journal: :Macromolecules 2021

The synthesis and characterization of two homoleptic Zn(II)- Mg(II)-complexes based on a simple tridentate {NNO} ligand are reported. production biocompatible atactic poly(lactic acid) (...

Journal: :Chemical communications 2010
Eun-Bum Cho Oc Hee Han Sunha Kim Dukjoon Kim Mietek Jaroniec

Imine-containing bridging groups were formed during self-assembly of periodic mesoporous organosilicas by in situ dynamic covalent chemistry of aldehyde and amine groups in the presence of poly(ethylene oxide)-poly(dl-lactic acid-co-glycolic acid)-poly(ethylene oxide) block copolymer in acidic aqueous solutions.

2016
Hongying Lu Xiao Zhao Yongze Wang Xiaoren Ding Jinhua Wang Erin Garza Ryan Manow Andrew Iverson Shengde Zhou

BACKGROUND A thermal tolerant stereo-complex poly-lactic acid (SC-PLA) can be made by mixing Poly-D-lactic acid (PDLA) and poly-L-lactic acid (PLLA) at a defined ratio. This environmentally friendly biodegradable polymer could replace traditional recalcitrant petroleum-based plastics. To achieve this goal, however, it is imperative to produce optically pure lactic acid isomers using a cost-effe...

2015
Beom Su Kim Ko Eun Park Min Hee Kim Hyung Keun You Jun Lee Won Ho Park

The broad application of electrospun nanofibrous scaffolds in tissue engineering is limited by their small pore size, which has a negative influence on cell migration. This disadvantage could be significantly improved through the combination of nano- and microfibrous structure. To accomplish this, different nano/microfibrous scaffolds were produced by hybrid electrospinning, combining solution ...

2017
Arnaldo Rodrigues Santos

Polymeric biomaterials are used as substitutes for damaged tissue and for the stimulation of tissue regeneration. One class of polymeric biomaterials are bioresorbable polymers that degrade both in vitro and in vivo and are used as a temporary support for tissue regeneration. Among the various types of bioresorbable polymers, -hydroxy acids including the different forms of poly(lactic acid) (P...

Journal: :Journal of biomedical materials research. Part A 2014
Laura Boomer Yanchun Liu Nathan Mahler Jed Johnson Katelyn Zak Tyler Nelson John Lannutti Gail E Besner

Novel therapies are crucially needed for short bowel syndrome. One potential therapy is the production of tissue engineered intestine (TEI). The intestinal environment presents significant challenges to the selection of appropriate material for tissue engineering scaffolds. Our goal was to characterize different scaffold materials to downselect to that best suited for TEI production. To investi...

Journal: :Journal of Materials Science 2022

Abstract Sepsis, a life-threatening organ dysfunction induced by severe infection and uncontrolled host immune response, threatens the health of people all over world. Herein, type nanoparticle formulation with simple components is synthesized encapsulating monophosphoryl lipid A (MPLA), TLR4 agonist, poly(lactic-co-glycolic acid) (PLGA) nanoparticle. The obtained nanoparticles (MPLA@PLGA) coul...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده علوم 1391

سنتز پلیمرهای کوئوردیناسیونی جدید از لیگاندهای 2-آمینو نیکوتینیک اسید، 2-کینولین کربوکسیلیک اسید، 2-پیرازین کربوکسیلیک اسید در ابعاد توده، با روش گرایان دمایی و با استفاده از شاخه ی جانبی انجام شده است، این پلیمرها توسط روش طیف سنجی ir شناسایی و پایداری گرمایی آن ها توسط تجزیه های وزن سنجی حرارتی (tga) و تجزیه ی گرمایی تفاضلی (dta) بررسی شده است. در ادامه، ساختار این ترکیبات توسط بلورنگاری پرتو...

Journal: :international journal of nano dimension 0
a. kodge department of chemistry, singhania university, rajastan, india. s. kalyane department of physics, rural engineering college, bhalki, bidar, karnataka, india. a. lagashetty department of chemistry, appa institute of engineering & technology, gulbarga, karnataka, india.

nanosized metal oxides dispersed polymer composites constitute a fascinating class of polymer composite materials. synthesis of such composite materials through solvent casting enhances the polymer synthetic technology. solvent casting method was used to prepare cobalt oxide (co3o4) dispersed poly (methyl methacrylate) (pmma) nano composite. x-ray diffraction tool is used to know the structural...

2017
Thangirala Sudha Dhruba J Bharali Murat Yalcin Noureldien HE Darwish Melis Debreli Coskun Kelly A Keating Hung-Yun Lin Paul J Davis Shaker A Mousa

The tetraiodothyroacetic acid (tetrac) component of nano-diamino-tetrac (NDAT) is chemically bonded via a linker to a poly(lactic-co-glycolic acid) nanoparticle that can encapsulate anticancer drugs. Tetrac targets the plasma membrane of cancer cells at a receptor on the extracellular domain of integrin αvβ3. In this study, we evaluate the efficiency of NDAT delivery of paclitaxel and doxorubic...

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