Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [biomedical-engineering]

The application of engineering principles and design concepts to medicine and biology for healthcare purposes (e.g. diagnostic or therapeutic). This field seeks to close the gap between engineering and medicine: It combines the design and problem solving skills of engineering with medical and ...

0
votes
0answers
7 views

How do natural hearts deal with the risk of blood clots associated with artificial hearts, VADs, and valves

From what I read about artificial devices engineered to substitute parts of the heart or the entire heart, blood clotting is a major risk that can be modulated by the device's surface material and ...
1
vote
1answer
16 views

Will DNA nanostructures be useful for medical applications?

There is a lot of work being done on developing small nanomechanical structures and even small nanomechanical actuators built with DNA. I have heard researchers motivate this research with claims ...
0
votes
0answers
40 views

Is countercurrent exchange system used in lungs or intestines?

Here is a question from the book My Max Score SAT Biology E/M Subject Test: Which of the following uses a countercurrent exchange system? I. Gills II. Kidneys III. Intestines IV. Lungs ...
2
votes
2answers
236 views

Are there any place in human body that safe to implant things and have large amount of blood run through?

Suppose there was a fuel cell in the size of AAA battery that could convert human blood sugar into electricity. Assume it safe and efficient without causing allergic reaction. But to avoid the risk of ...
1
vote
0answers
18 views

Young family members to learn genetics - Amino Labs? [closed]

I'm an engineer but want to learn about biology with a niece and nephew who are early teens. I saw Amino Labs (https://amino.bio/) and thought because I work a lot with my hands, doing hands on ...
0
votes
0answers
10 views

stabilization mechanism

I am trying to simulate a soma with sealed end in both side and injected current in the middle of the soma. I used Na K and Ca voltage gated channels to get a concentration inside soma. I got a result ...
0
votes
0answers
20 views

PK and PD models

I'm having trouble understanding PK and PD models in context. Are they carried out at each stage of drug development? Whats the context behind a fixed effect model and an emax model? Is the purpose of ...
1
vote
0answers
49 views

How is the Guide RNA created for Crispr?

It seems that to modify DNA a guide RNA and Cripr are introduced. But I'm unable to understand how the Guide RNA is made or created. Is it a simple method which can be done with simple lab equipment ...
2
votes
0answers
19 views

Single wire pacemakers

There are single wire pacemakers used for regulating heart beat. The wire will conduct pulse to the heart. How can one wire be enough? Where is the reference wire for the stimulation of heart?
4
votes
0answers
20 views

Are there medical imaging devices to look inside artery? [duplicate]

Are there medical imaging devices to look inside artery? If yes, what is there sensitivity i.e. smallest object they can detect?
1
vote
0answers
16 views

In Vitro Meat Initial Production

I've gotten interested in the science behind in vitro meat, and I was wondering what would be necessary to create it. Would you initially need a primary culture, or an immortalized cell line? And how ...
3
votes
0answers
24 views

Absorbable stents

Stents are tubular scaffoldings, which are used to expand blocked arteries. Absorbable stents dissolve after few years. Shouldn't the blood vessel become narrow again once the stent has dissolved?
2
votes
0answers
55 views

Mosquito vs Human: Swapping the roles

Is there a known mosquito-specific lethal (for some relevant species of mosquitos) virus that you could safely (for the humans) put into the blood of living humans? Is it technically possible to ...
4
votes
1answer
114 views

What is PDMS used for in microfluid models?

When creating a microfluidic model using polydimethylsiloxane (PDMS), is PDMS used only as a stamp to lay proteins in coverslips or can cells be cultured in the channels or patterns created in PDMS?
0
votes
2answers
155 views

What is the difficulty with cloning and genetic engineering in humans?

I asked this question many years ago and was told by my molecular biology professor that humans were (simply) more complicated than goats. So, I didn't get a straight answer, but supposing he told ...
4
votes
1answer
126 views

How specific are CRISPR-cas9 cuts?

CRISPR-cas9 uses a string of RNA that matches with DNA and makes a double stranded cut at that point. If the RNA is just a few letters in length, the enzyme would cut DNA in many places. It would be ...
0
votes
1answer
30 views

iPSC in drug discovery

Pluripotent stem cells are very popular and lots of research has been conducted to use these cells as a tool for drug discovery. My question is how many years would it theoretically safe is we could ...
0
votes
1answer
534 views

How does a test like the Natera Panorama distinguish the child's genome from the mother?

Blood tests on an expectant mother, like the Natera Panorama, are now being used regularly to screen fetuses for chromosome abnormalities. At my wife's recent prenatal visit, she wasn't really even ...
12
votes
1answer
16k views

How do disulphide bonds in hair cause curling?

I understand that there are several characteristics of curly hair which differ from straight hair (such as an asymmetrical distribution of disulphide bonds in curly hair), but really am struggling to ...
0
votes
0answers
69 views

Large set of semen microscope images needed

As a course project I have to write an algorithm whose purpose is to analyze a sperm sample (total number, motility etc). In order to do that though, I need to have a sufficient number of images to ...
1
vote
1answer
90 views

Are there antibiotics for all bacteria somewhere in the earth? [closed]

When I read about Penicillin, I found that it came from a green mold to protect itself. If all bacteria and/or molds in competition to survive, can we believe that there is an antibiotic for each ...
2
votes
2answers
457 views

What makes diffculty to make a human bio-tooth compare to a mouse's? [closed]

Some time ago I read a news article that said a bio-engineered tooth based on a mouse's would be available around 2015. There was some research about it at King's College in the UK, and many other ...
15
votes
2answers
2k views

How to make a fake auditory signal?

My question is about making fake auditory signals. The ear collects sounds from the environment, which are transformed into a neural signal by the hair cells in the inner ear. This signal is sent ...
5
votes
1answer
186 views

How can electric fields inhibit tumor growth?

In MIT's Technology review it is explained that electric fields can cause dividing cancer cells to explode, while these fields have no significant impact on non-dividing tissues. The original research ...
5
votes
1answer
207 views

Are there any known health benefits / risks from milliampere current (0.1-2 mA) on forehead?

This is about devices like that sold by foc.us that allows user to apply a small current on a specific part of the forehead. For the sake of this question I use the foc.us "gamer" model as example. ...