نتایج جستجو برای: کوپلیمر تری بلاک pcl

تعداد نتایج: 25418  

2014
Johan L. M. Björkegren Sara Hägg Husain A. Talukdar Hassan Foroughi Asl Rajeev K. Jain Cecilia Cedergren Ming-Mei Shang Aránzazu Rossignoli Rabbe Takolander Olle Melander Anders Hamsten Tom Michoel Josefin Skogsberg

Plasma cholesterol lowering (PCL) slows and sometimes prevents progression of atherosclerosis and may even lead to regression. Little is known about how molecular processes in the atherosclerotic arterial wall respond to PCL and modify responses to atherosclerosis regression. We studied atherosclerosis regression and global gene expression responses to PCL (≥80%) and to atherosclerosis regressi...

Journal: :Biomaterials 2002
Yabin Zhu Changyou Gao Jiacong Shen

Polycaprolactone (PCL) membrane was modified by grafting copolymerization of methacrylic acid (MAA) initiated under UV light. The covalent immobilization of gelatin on PCL-g-PMAA surface was consequently performed by using condensing agent, 1-ethyl-3-(3-dimethylamino propyl) carbodiimide hydrochloride. The occurrence of grafting copolymerization of PMAA and further immobilization of gelatin was...

2013
Abdelhaq Benkaddour Khalil Jradi Sylvain Robert Claude Daneault

The main objective of this work is the grafting of polycaprolactone diol (PCL) on the surface of oxidized nanocelluloses (ONC) in order to enhance the compatibility between the hydrophilic cellulose nanofibres and the hydrophobic polymer matrix. This grafting was successfully realized with a new strategy known as click chemistry. In this context, the oxidized nanocelluloses bearing alkyl groups...

ژورنال: سلول و بافت 2017

هدف : مطالعه حاضر با هدف بررسی تاثیر انکپسوله­سازی همزمان DNA با نسبت­های متفاوت PLL توسط کوپلیمر PLA-PEG بر افزایش کارایی انتقال ژن به سلول­های پستانداران و خصوصیاتی از قبیل زیست سازگاری، محافظت از DNA در برابر آنزیم­های برشی، سرعت رهایش DNA، اندازه و پتانسیل ذتای ذرات انجام گرفت.مواد و روش‫ها: نانوذرات PLA-PEG/PLL/DNA با نسبت­های متفاوت...

2013
Mandula Borjigin Chris Eskridge Rohina Niamat Bryan Strouse Pawel Bialk Eric B Kmiec

Polycaprolactone (PCL) and its blended composites (chitosan, gelatin, and lecithin) are well-established biomaterials that can enrich cell growth and enable tissue engineering. However, their application in the recovery and proliferation of genetically modified cells has not been studied. In the study reported here, we fabricated PCL-biomaterial blended fiber membranes, characterized them using...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Weijia Ou Tetsuo Uno Hsien-Po Chiu Jan Grünewald Susan E Cellitti Tiffany Crossgrove Xueshi Hao Qian Fan Lisa L Quinn Paula Patterson Linda Okach David H Jones Scott A Lesley Ansgar Brock Bernhard H Geierstanger

Pyrroline-carboxy-lysine (Pcl) is a demethylated form of pyrrolysine that is generated by the pyrrolysine biosynthetic enzymes when the growth media is supplemented with D-ornithine. Pcl is readily incorporated by the unmodified pyrrolysyl-tRNA/tRNA synthetase pair into proteins expressed in Escherichia coli and in mammalian cells. Here, we describe a broadly applicable conjugation chemistry th...

2002
Wayne J. Katon Dorcas J. Dobie Daniel R. Kivlahan Charles Maynard Kristen R. Bush Amee J. Epler Katharine A. Bradley

We evaluated the screening validity of a self-report measure for post traumatic stress disorder (PTSD), the PTSD Checklist (PCL), in female Veterans Affairs (VA) patients. All women seen for care at the VA Puget Sound Health Care system from October 1996–January 1999 (n 2,545) were invited to participate in a research interview. Participants (n 282) completed the 17-item PCL, followed by a gold...

2017
Sam K. Yasen Zakk M. Borton Edward M. Britton Harry C. Palmer Adrian J. Wilson

Posterior cruciate ligament (PCL) injuries usually constitute part of a multiligament injury. Isolated PCL injuries account for only approximately 3% of all ligament injuries. No consensus on optimal surgical reconstruction exists. The PCL is a double-bundle structure that functions in an anisometric manner. Biomechanical studies have shown that re-creating the PCL femoral double-bundle configu...

A. Homafar E. Rezaee Nezhad F. Moradi O. Ahmadi V. Moradi Z. Abbasi,

The aims of the study were to investigate the effect of poly(ε -caprolactone) (PCL) and nano- SiO2 within the thermoplastic starch (TPS) blends on the rate and extent of starch enzymatic hydrolysis using enzymes α-amylase and amyloglucosidase. The results of this study have revealed that blends with nano-SiO2 content at 6 wt% exhibited a significantly reduced rate and exte...

Journal: :The Journal of bone and joint surgery. British volume 2004
J W Pritchett

A total of 344 patients underwent bilateral total knee replacement (TKR) using a different prosthesis on each side. Four knee prostheses were used: anterior and posterior cruciate-retaining (ACL-PCL), posterior cruciate-retaining (PCL), medial or lateral pivot (MLP), and posterior cruciate-substituting (PS). All patients had good or excellent results. The range of movement, relief from pain, al...

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