Promising molecules in gene transfer technology

Assignment Help Mechanical Engineering
Reference no: EM13703159

The previously given answer to this question doesn't seem to answer the question presented. It just gives an answer based on what?

Liposomes are promising molecules in gene transfer technology because of their similarity to cell membranes and their charge interactions with negatively charged DNA. Estimate the charge on the outside surface of a liposome of diameter 1 um. Suppose a typical phospholipid head has a diameter of 1 nm and carries a charge of one proton (1.6021 x 10^-19 C). Assume that the surface of the spherical liposome is comprised of phospholipid heads packed together as tightly as possible in a configuration known as hexagonal packing, which minimizes the inevitable vacant space that occurs when circles pack against one another.

Reference no: EM13703159

Questions Cloud

The acceleration due to gravity i : The acceleration due to gravity is 9.81 m/s^2. What is the force needed to hold a mass of 2 kg at rest in this gravitational field, both in N, kgf, and lbf? How much mass (kg) can a force of 1 N support?
Determine the final volume of the saturated vapour : A frictionless piston cylinder device arrangement initially contains 8kg of saturated water mixture at 200 Degrees Celsius. Heat is supplied to the mixture till all the mixture is converted to saturated vapour at constant pressure. Determine the fina..
What are some of the issues with aircraft structure : What are some of the issues with aircraft structure loads and what effects may these loads have on aircraft?
Fundamentals of heat and mass transfer : Trying to find a solution for problem 2.33 in Fundamentals of Heat and Mass Transfer, seventh edition.
Promising molecules in gene transfer technology : Liposomes are promising molecules in gene transfer technology because of their similarity to cell membranes and their charge interactions with negatively charged DNA. Estimate the charge on the outside surface of a liposome of diameter 1 um. Suppose ..
What percentage of washers is discarded : The mean inside diameter of a sample of 100 washers manufactured by a machine is 0.252 m, and the standard deviation is 0.003 m. The application for the washers permits a tolerance in the diameter of 0.246 m to 0.258 m. If the diameter is outside thi..
Calculate the angular velocity and angular acceleration : Calculate the angular velocity and angular acceleration of a 2kg mass rotating in a horizontal circle of 2m radius if one revolution takes 4 seconds. An object rotates in a 3m diameter circle with angular velocity of 3 rad/s. calculate the period anf..
Explosion due to a broken gas tube : There has been an explosion due to a broken 12 inch gas tube. The explosion caused a 10 meter wide and 25 meter long hole on the highway, how much C02 has been released due to this explosion? No need for exact data, just an estimate supported by equa..
Evacuated tunnel dug straight through centre of the earth : Gravity elevators are an old idea in science fiction and consist of an evacuated tunnel dug straight through the centre of the Earth as shown below. The idea is that the elevator falls due to gravity until it reaches the other end.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Determine the maximum theoretical speed that may be

determine the maximum theoretical speed that may be achieved over a distance of 360ft by a car of weight w starting

  The african elephant has developed the pinna or external

the african elephant has developed the pinna or external ear that functions as a radiator-convector. the pinna can be

  A solid object of aisi 302 steel at a temperature of 850c

a solid object of aisi 302 steel at a temperature of 850?c is quenched in mineral oil at a temperature of 25?c. the oil

  Estimate the annual emissions of co2 and so2 from a 1500

estimate the annual emissions of co2 and so2 from a 1500 mwth steam generation plant if the boiler operates at 1800 k

  Design the machine mounts consisting of a linear spring and

a machine of mass 20 kg is acted upon by a harmonic force having a maximum value of 25 n at a frequency of 120

  An electronics company has a contract to deliver

An electronics company has a contract to deliver

  Find the amount of pollutant in tank a as a function of

tank a initially contains 100 gallons of pollutant and no water. pure water flows from a source to tank a at a rate of

  The combustion gases leave the heat exchanger at 380 k

the top cycle of a combined cycle power plant has a pressure ratio of 12. air enters the compressor at 300 k at a rate

  Define cantilever beam with maximum tensile strength

Cantilever Beam with maximum tensile strength. A cantilever beam is to be made using a symmetrical I section beam. The cantilever is to carry a load of 40kN at a distance 2.5m from the fixed end. The situation allows for a depth of I beam to be no..

  A gas is contained in a vertical frictionless

a gas is contained in a vertical frictionless piston-cylinder device. the piston has a mass of 4kg and a cross

  Determine the work kj performed by the air in the cylinder

initially 0.05 kg of air is contained in a piston-cylinder device at 200 degc and 1.6 mpa. the air then expands at

  Determine the magnitude of the resultant force acting at a

The roof is supported by cables. If the cables exert FAB = 100N and FAC = 120N on the wall hook at A, determine the magnitude of the resultant force acting at A.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd