Pei-Sze Ng

STRATEGIES FOR DELIVERY

I: Synthesis and Applications of Endcapped Oligonucleotides II: Synthesis and Delivery of Amine and Guanidinium Functionalized Gold Nanoparticles

• Broschiertes Buch

Produktbeschreibung

Part I: Endcaps are linkers that link the 3 and 5
ends of DNA duplexes. A series of diamide endcaps
has been synthesized and shown to stabilize DNA
duplexes (4 base-pair). Endcapped CpG
oligonucleotides were synthesized to elucidate the
mode of recognition of different forms of CpG
oligonucleotides by the immune system. Endcapped CpG
oligonucleotides stimulated IL-6 and IL-12 secretion
and extended the life span of the tumor implanted
mice beyond that of the untreated control mice.
Closed endcapped DNA duplexes were obtained by
enzymatic ligation of the nicked DNA duplexes. The
efficiency of ligation was dependent on the number
of nucleotides flanking the 3 - and 5 ends of the
nick. The nuclease stability of endcapped CpG
oligonucleotides was established to be at least 6-
fold more stable than unmodified oligonucleotides.
Part II: Thiol terminated amine and guanidinium
derivatives were synthesized and conjugated to 5 nm
and 10 nm gold nanoparticles. These functionalized
gold colloids were studied for their cellular uptake.

Produktdetails

• Verlag: VDM Verlag Dr. Müller
• Seitenzahl: 176
• Englisch
• Gewicht: 244g
• ISBN-13: 9783639134520
• ISBN-10: 3639134524
• Artikelnr.: 26149741

Autorenporträt

Pei-Sze Ng joined a biotechnology company in Cambridge, MA, as a
scientist after completion of her post-doctorate training at the
Massachusetts Institute of Technology. From 1999 to 2004, she
did her doctoral work in the field of medicinal chemistry and
biotechnology at Purdue University, Indiana, U.S.A.
Her family lives in Singapore.