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Biosensores y e-health | Laura Lechuga | TEDxUPValència


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my grandmother was diabetic and she died

a very aggressive diabetes very bad

controlled and had an untimely death

at that time

these diabetic patients to be able

know what was the concentration with

the subprime glucose had to go

to a hospital is to wait sometimes days

entire weeks until they give you the

results and of course that result

I had to interpret them with a doctor

that means that the dose of

insulin that was injected was always

an approximate thing that taking in

account some analysis that had been

done or weeks or even months

before and that means that in that

era the diabetic patients had

a poor quality of life

they suffered suffered great suffering and

they will die prematurely as happened to

my good but curiously in the year

1962 to a doctor and a scientist

American and in view of this suffering

of diabetic patients are

this great idea of ​​why not

make a small sensor that was very

simple very easy and that these same

patients could do the analysis

even in your own home

so it did what was now called

glucose sensor many times wrong

called sugar meter because in

actually these biosensors only

detects what to the concentration that

we have glucose in our blood

As you know in the blood we have many

substances but only in this case

we want to detect this this substance in

the year in this year 1962 these doctors

they developed and tested this first

village however simple happened more than

25 years until these devices

they went to the market

to this day they use millions of

people is something very simple

you just have to click to take a

gotham sample a blood sample

put it on the sensor including five

second only five seconds in the

device screen that appears

what is your concentration the sick

diabetics already know what the dose is

of insulin that have to be punctured

maybe they are peru

giving why it took so long because

since 1962 that this was

first ideas because it took those 25

years will hit the market

good because these devices though

as you see fit very simple

it actually combines a technology

quite sophisticated inside as there

that incorporate a video receiver

totally selective that is capable

exclusively duties to glucose in the

blood

despite the many other substances

what we have

together with a conelec biosensor with

an electrochemical sensor that is capable

to translate that signal and show us in

screen what do you what it is that

he has the diabetic patient

maybe another example that all of you

They are aware of the pregnancy test

magical strips not that can change us

the life of execution of just about

minutes just putting a drop of

woman’s urine

this is also an example of a

totally selective biosensor in this

case these strips the only thing that combine

is a specific receiver to join

only hormones that is present in the

urine of women in such a way that

when this reaction takes place that

it’s not a combination technology

that what it produces is a change of color

that we can see with the naked eye

very well this is the present this is what

that we have today but how are you going

be our future

in the case of our future what

we are going to have are a series of sensors

that we can take even to our

bag that we will have at home that

You can even be in the consultation of the

GP

in such a way that by putting just one

urine drop a drop of blood or a

sweat drop even a tear

We can analyze for each type of

disease we can know that if we are

starting or if we have that disease

we copy this to a small sensor

we put our test strip that has

and this specific receiver and this

is enough incorporated in an application in

our mobile phone in such a way

that inclusion of very few minutes

let’s see on our mobile that

pathology we have and so we can know

If you are sick if you are

healthy they are sick and to say to

see your doctor or if by the

opposite also the mobile application

will tell you that you have to run

to the hospital very well this they see

here for example is something that also

we’re

developing our laboratories

imagine a single drop of

blood

you put one of these strips and

can they know if they are starting

develop a colon cancer

even three or four years before it

they can diagnose it in the hospital

this means that we also

we would avoid doing this colonoscopy

these patients

maybe there is some celiac patient in

the vaginal room is available this

sensor that comes home is not found

well you take a drop of urine they put it

the sensor and then you can see if it has

eaten gluten

there were some traces of gluten in what

who has eaten throughout the day very

well all this technology that are

seeing that they are seeing here that

we are developing in our

laboratories in nanoscience yucatan

and nanotechnology where what we do

is to combine all these receivers

biological for each application

concrete with a technology based its

Sophisticated based on unique and no photo

that then do not allow to develop a

device for each application

I want you to stay with two ideas

fundamental these devices the

we can modulate and we can manufacture them

for each application

in particular perhaps remember the famous

case of Spanish cucumbers in

germany a few years ago

in this case there was an infectious outbreak

very serious in Germany died more than

15 people and in this war in that

At the moment the German authorities

blamed the wrong transportation of

Spanish cucumbers because I know

what that infection was due to a strain

very virulent of the bacterium escherichia

coli

the problem week later the

German authorities had to

rectify and ask for excuses after

that they had already asked for millions of

euros in our exports because

they managed to identify after that

time what was the mutation that had

place in that bacterium responsible for that

infection because that happened because

it is because today the

analyzes that have to be carried out

out a very sophisticated analysis

analyzes that can only be carried out

out in specialized laboratories are

complex and take a very long time very

well another example that those who wanted

begins another of all the advantages

I wanted to comment is that if we had

had at that time for this case

of cucumbers a specific biosensor

we could have done that analysis

in a much faster way and about

we could all have seen what the

specific mutation of sg and we could

have given those patients before they

died the antibiotic treatment

adequate

the other second advantage that I want them

comment on these devices that I

would like it to stay in the mind is

that these devices are capable of

make a very early analysis of the

diseases

imagine that kind of diseases

example as lung cancer

ovarian cancer pancreatic cancer

all that kind of cancer that does not

we are only able to

detect them when they are already in a phase

more advanced with these devices

we will be able to detect it

just when they are in the first

beginnings when they start having those

first biomolecular changes that we

they will therefore allow detecting that

those people are starting with that

type of cancer and therefore we are going to

be able to give them the therapy that

It suits a lot more

advanced that it may seem that what

what I am telling you is science

fiction that would have seemed to me

Grandma made us at that time

said let’s manufacture in a sensor with

which you will be able to do yourself

those measures not because possibly to it

It would also have seemed like science

fiction

however this glucose biosensor to

today they do not use millions of

people around the world

maybe they have seen the movie gattaca a

science fiction icon remember

of this movie in which humans

they were divided between

genetically perfect and imperfect

if you remember in this film these

humans is we knew what kind ap

type belonged

simply because there was a meter with

which with a small drop of urine or

okay with a simple hair the person is

they put the little machine and in a matter of

seconds I told you what was the profile

genetic of that person very well this

that we saw in the movie gattaca very

it will soon stop being science film

fiction to become

the reality I imagine that also

will be starting to think not all

these ethical or privacy issues

that open with this new advancement

technological we are going to have sensors

cold everywhere as it happened in

the gattaca movie we really want

have a sensor that is going to tell us that

we are starting a disease years

before they can not diagnose it

if for example there is no cure for this

illness as occurs for example in the

case of Alzheimer’s or for example we

interesting to know what we have

predisposition to suffer from a disease

in the future if we all know if we know

what predisposition is not always

means that one develops the

disease

well maybe right now I do not have

answer and possibly you

not to all these questions but I

here what I want to do is

transmit a message of optimism

imagine that we have these little ones

sensors that are easy to use that

they are comfortable they are cheap and we can

use them third world regions

where millions of people do not have

access to the diagnosis imagine

infections that we can detect from this

forms infections like malaria like

tuberculosis and dengue or as the

been because curiously all of these

millions of people in the third world

they do not have access to healthcare and have neither

they are even connected to light or water

but nevertheless they all have a

mobile phone because today the

number of mobile phones is finished

to equal the number of inhabitants in

our planet

therefore this what I want them

transmit is that it really is

technology can be very positive for

to be able to help all these people

according to the world organization of

health in the year 2030

approximately 70% of deaths

will be due exclusively to the

chronic diseases caused by the

aging of our society

so therefore it will be very good and

very beneficial to be able to count on all

these sensors to be able to give more

comfort of a better quality of life to

all our aging society and already

to finish I just want

leave them

prison the diagnosis is always the

first link in medicine

we are prepared for this authentic

revolution in health care

stresses that he approaches steps

gigantic

we are really prepared to

control our own health of the

palm of our hand from our hand

with our mobile

thank you very much

[Applause]

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