Electroporation is one of the most widely used methods to deliver exogenous DNA payloads into cells, but a major limitation is that only a small fraction of the total membrane surface is permeabilized. Here we show how this barrier can be easily overcome by harnessing hydrodynamic effects associated with Dean flows that occur along curved paths. Under these conditions, cells are subjected to a ...

background: extraction of blood genomicdnais one of the main approaches for clinical and molecular biology studies. although several methods have been developed for extraction of blood genomic dna, most of these methods consume long time and use expensive chemicals such as proteinase k and toxic organic solvent such as phenol and chloroform. the objective of this study was to developed easy and...

background: discovery of short cell free fetal dna (cffdna) fragments in maternal plasma has created major changes in the field of prenatal diagnosis. the use of cffdna to set up noninvasive prenatal test is limited due to the low concentration of fetal dna in maternal plasma therefore, employing a high efficiency extraction method leads to more accurate results. the aim of this study was to ev...

BACKGROUND: Influenza outbreak has become a great lifethreateningdisease in the world. Nasal vaccines can inducesystemic IgG and mucosal IgA antibody responses, whichestablish two layers of immune defense against the infectiouspathogens like influenza. Mucosal vaccines must overcomeseveral limitations, including the mucociliary clearance andinefficient uptake of soluble antigens. Therefore, nas...

objective(s): pei based nanoparticle (np) due to dual capabilities of proton sponge and dna binding is known as powerful tool for nucleic acid delivery to cells. however, serious cytotoxicity and complicated conditions, which govern nps properties and its interactions with cells practically, hindered achievement to high transfection efficiency. here, we have tried to optimize the properties of ...

Background: Dendritic cells (DCs) are ideal accessory cells in the field of gene therapy. Delivery of DNA and siRNA into mammalian cells is a useful technique in treating various diseases caused by single gene defects. Selective gene silencing by small interfering RNAs (siRNAs) and antisense oligodeoxynucleotides (ODN)s is an efficient method for the manipulation of cellular functions. An effic...

abstract background: labor is a physiologic process, and consideration of labor pain and relieving that is among the major components of maternal care. application of some labor position can lay the fetus better in pelvic canal direction. the present study aimed to investigate the effect of laying the mother in three labor positions on the pain severity in the second, third, and fourth stages o...

Gene delivery holds promise to cure many inheritable or acquired diseases that are currently considered incurable. Liposomes are clinically well-established drug-delivery vehicles with promising properties, including biocompatibility, high drug-to-carrier ratios, and straightforward drug-encapsulation capability. However, widespread clinical use of this delivery system still requires better del...