Nanotechnology involves manipulating materials at the nanoscale and has many applications in medicine. It can be used to more precisely deliver drugs to specific locations in the body using nanobots or nanoparticles, helping improve treatment effectiveness and reduce side effects. Disease diagnosis and prevention may also be enhanced through tools like quantum dots that can identify cancer cells and nanobots that remove fat deposits or "cook" tumors. However, there are also environmental and health risks like nanoparticles potentially damaging lungs or organs if inhaled or entering the bloodstream that require further research. Overall, while still developing, nanomedicine shows promise for finding cures but safety testing is important to ensure safe use.
Nanoparticle, ultrafine unit with dimensions measured in nanometres (nm; 1 nm = 10−9 metre). Nanoparticles exist in the natural world and are also created as a result of human activities. Because of their microscopic size, they have unique material characteristics, and manufactured nanoparticles may find practical applications in a variety of areas, including medicine, engineering, catalysis, and environmental remediation.
video 1-3 (http://www.youtube.com/watch?v=sITy14zCvI8).....Scale of Nanotechnology
video 2-3 (http://www.facebook.com/video/video.php?v=2196584121947&oid=198340380213942).......Journey Into Nanotechnology
video 3-3 (http://www.facebook.com/video/video.php?v=2196594562208&oid=198340380213942).....Molecular Imaging Therapy
This power point presentation will tell you from basics to advance nano-technologies that are being used in health sciences. It will explain abut the various nano-materials that are helping in diagnostics, therapeutics and medical research.
Nanoparticle, ultrafine unit with dimensions measured in nanometres (nm; 1 nm = 10−9 metre). Nanoparticles exist in the natural world and are also created as a result of human activities. Because of their microscopic size, they have unique material characteristics, and manufactured nanoparticles may find practical applications in a variety of areas, including medicine, engineering, catalysis, and environmental remediation.
video 1-3 (http://www.youtube.com/watch?v=sITy14zCvI8).....Scale of Nanotechnology
video 2-3 (http://www.facebook.com/video/video.php?v=2196584121947&oid=198340380213942).......Journey Into Nanotechnology
video 3-3 (http://www.facebook.com/video/video.php?v=2196594562208&oid=198340380213942).....Molecular Imaging Therapy
This power point presentation will tell you from basics to advance nano-technologies that are being used in health sciences. It will explain abut the various nano-materials that are helping in diagnostics, therapeutics and medical research.
Nanotechnology is defined as: the application of scientific knowledge to manipulate and control matter at the Nano scale level to make use of size and structure dependent properties and phenomena distinct from those associated with individual atoms or molecules or with bulk materials.
The Nano scale is the size range from approximately 1nm to 100nm.
Nanotechnology exhibits a strong degree of convergence with many other disciplines, such as the information and communications technologies (ICT) industry.
Nanotechnology and potential in Cancer therapy and treatmentladen12
this presentation focuses on new nanotechnology and it possible use in detection and therapy with cancer. it was prepared by final year biochemistry student at NCU.
NANO TECHNOLOGY IN THE FIELD OF MEDICINEsathish sak
Medical Nano Robots (Molecular technology and AI)
Will change medicine at its foundations A system INCLUDING NANO COMPUTERS and molecular scale sensors and tools, programmed to repair damage to cells and tissues A fundamental break through : these machines will free medicine from the reliance of self repair as the only path to healing Selective Destruction : example cancerous cells , recognize and destroy a specific kind of cell
Nature's own cell repair machines are limited in their ability
This paper represent the innovative trends
and aspect of green nanotechnology development
challenges and opportunities in the field of alternative
technology to assist in future developments in this field.
There are various innovative applications of green Nanotechnology
in different- different fields like Energy,
Medicine and Drugs, Nano bio-technology, Nano devices,
Optical Engineering, Defence & Security, Bio
Engineering,Cosmetics,Nano Fabrics etc. Nanotechnology
improves the process of production and also improves the
quality of products. It works at the molecular level and
utilizes the more advanced concept, idea and research for
the development of different fields and production.
Tweet It: An Overview of How Social Media Can Enhance Your Business?Bill Sheridan, CAE
In this presentation to the AICPA's 2016 Forensic and Valuation Services Conference, Bill Sheridan makes the business case for social media and offers some advice for how to build a successful network.
#SPW13 - Reverse engineering from old used computers - workshop 2016-10-15Brussels, Belgium
The 13th Science Projects Workshop in the Future Classroom Lab, organised by Scientix, in collaboration with the STEM Alliance and OPENSKIMR took place in Brussels in October 2016, from Friday 14 (starting time: 19:30) to Sunday 16 (end ~14h).
Inform yourself about what (Go-Lab) scenarios are and how you can use them. This presentation was part of the 12th Science Projects Workshop in the Future Classroom Lab in Brussels, June 2016.
Nanotechnology is defined as: the application of scientific knowledge to manipulate and control matter at the Nano scale level to make use of size and structure dependent properties and phenomena distinct from those associated with individual atoms or molecules or with bulk materials.
The Nano scale is the size range from approximately 1nm to 100nm.
Nanotechnology exhibits a strong degree of convergence with many other disciplines, such as the information and communications technologies (ICT) industry.
Nanotechnology and potential in Cancer therapy and treatmentladen12
this presentation focuses on new nanotechnology and it possible use in detection and therapy with cancer. it was prepared by final year biochemistry student at NCU.
NANO TECHNOLOGY IN THE FIELD OF MEDICINEsathish sak
Medical Nano Robots (Molecular technology and AI)
Will change medicine at its foundations A system INCLUDING NANO COMPUTERS and molecular scale sensors and tools, programmed to repair damage to cells and tissues A fundamental break through : these machines will free medicine from the reliance of self repair as the only path to healing Selective Destruction : example cancerous cells , recognize and destroy a specific kind of cell
Nature's own cell repair machines are limited in their ability
This paper represent the innovative trends
and aspect of green nanotechnology development
challenges and opportunities in the field of alternative
technology to assist in future developments in this field.
There are various innovative applications of green Nanotechnology
in different- different fields like Energy,
Medicine and Drugs, Nano bio-technology, Nano devices,
Optical Engineering, Defence & Security, Bio
Engineering,Cosmetics,Nano Fabrics etc. Nanotechnology
improves the process of production and also improves the
quality of products. It works at the molecular level and
utilizes the more advanced concept, idea and research for
the development of different fields and production.
Tweet It: An Overview of How Social Media Can Enhance Your Business?Bill Sheridan, CAE
In this presentation to the AICPA's 2016 Forensic and Valuation Services Conference, Bill Sheridan makes the business case for social media and offers some advice for how to build a successful network.
#SPW13 - Reverse engineering from old used computers - workshop 2016-10-15Brussels, Belgium
The 13th Science Projects Workshop in the Future Classroom Lab, organised by Scientix, in collaboration with the STEM Alliance and OPENSKIMR took place in Brussels in October 2016, from Friday 14 (starting time: 19:30) to Sunday 16 (end ~14h).
Inform yourself about what (Go-Lab) scenarios are and how you can use them. This presentation was part of the 12th Science Projects Workshop in the Future Classroom Lab in Brussels, June 2016.
the application of historical knowledge is very fascinating than the actual science in knowing and explaining the belief of human being on some ways of living
Wie schon weltweit beobachtet, setzt Airbnb auch in der Schweiz sein starkes Wachstum fort. Das zeigen die neuen Zahlen des Walliser Tourismus Observatoriums, das nach 2014 zum 2. Mal die Marktpräsenz der Wohnungsvermittlungsplattform Airbnb auf Schweizer Ebene erhoben hat. Dabei wurden die Angebote von Airbnb mit der Hotel- und dem Parahotellerieangebot in den jeweiligen Kantonen und Destinationen verglichen.
Unsere Studie zeigt, dass sich das Airbnb-Angebot in Bezug auf die vermittelten Objekt seit 2014 mehr als verdoppelt hat - von 6033 Objekten auf heute 12937 Objekte. Es handelt sich bei den Zahlen in der Studie um Minimalwerte, da wir mit unserer Methode « nur » circa 90% des Angebots erfassen konnten.
Das Bettenangebot ist von 20‘841 (Ende Oktober 2014) auf 33‘374 (Ende Oktober 2015) gewachsen, d.h. um rund 60%. Kantone mit rund 1‘000 und mehr Objekten sind Zürich (2'117), Wallis (1'737), Genf (1'633), Waadt (1'437), Bern (1'158), Basel-Stadt (1'140) und Graubünden (934). Diese Regionen stellen rund 80% des Airbnb-Angebotes in der Schweiz.
Airbnb ist in den städtischen Regionen und den klassischen Ferienregionen stark vertreten. Vom Bettenangebot her dominieren das Wallis mit 8‘139 Betten (24.4% Marktanteil) und Graubünden mit 3‘967 (8.8%) Betten den Markt, vor Waadt, Zürich, Bern, Genf, Basel-Stadt und Tessin. Gemeinsam stellen diese Regionen 85% des Schweizer Airbnb-Bettenangebots.
Airbnb konkurrenziert die klassische Hotellerie vor allem in städtisch geprägten Kantonen wie Basel-Stadt (Airbnb Angebot entspricht schon 31% des Hotelbettenangebots), Waadt (19%) und Genf (17%). Dort sind sie deutlich stärker als im Schweizer Durchschnitt von 13 Prozent. Ein im Vergleich zur Hotellerie stark wachsendes Angebot ist auch beim Schwergewicht Wallis (25%) festzustellen.
8‘515 Objekte (oder 65.82% des Angebots) werden von einem einzigen Vermieter (d.h. total 8515 Vermieter oder 85.5% aller 9‘959 Vermieter) verwaltet, der keine weiteren Objekte auf Airbnb betreut und wahrscheinlich als Privatperson eingestuft werden kann. 946 Vermieter (9.5% der Vermieter) kümmern sich um 2 Objekte, d.h. total 1892 Objekte oder 14.62% des Angebots.
Die 498 restlichen Vermieter (5.0% der Vermieter) kümmern sich um mehr als 2 Objekte und können wahrscheinlich schon als gewerbliche Vermieter eingestuft werden. Sie verwalten 2‘530 Objekte oder 19.56% des Angebots.
Während Airbnb 2015 weltweit wahrscheinlich 80-100 Millionen Logiernächte generieren wird, schätzen wir für die Schweiz ein Logiernächtevolumen von mindestens 1 Million für 2015.
Schlüsselfaktoren und Voraussetzungen für erfolgreiche Freizeitverkehrsangebo...Andreas Kagermeier
Prof. Dr. Andreas Kagermeier
Freizeit- und Tourismusgeographie, Universität Trier
Fachsitzung: Herausforderung Verkehrswende: Entwicklungspfade für nachhaltigeren touristischen Verkehr und Freizeitverkehr (VE-FS-40)
Deutscher Kongress für Geographie, Berlin 1. bis 6. Oktober 2015
In vielen ländlichen Destinationen sind in den letzten Jahren freizeittouristische Verkehrsangebote unterschiedlichster Art installiert worden. Allerdings erfahren diese in vielen Fällen nur eine begrenzte Nachfrage, so dass sie oftmals auch wieder nach kurzer Zeit eingestellt werden. Vor diesem Hintergrund setzt sich der Beitrag mit den grundsätzlichen Aspekten der Rahmenbedingungen von freizeittouristischen Verkehren im ländlichen Raum auseinander.
Als Ursache für die oftmals nur partiellen Erfolge bzw. eine suboptimale Nachfrage nach freizeittouristischen Mobilitätsangebote wird die Tatsache angesehen, dass viele Angebote ohne oder nur auf der Basis von rudimentären Machbarkeitsanalysen gestartet werden. Abgesehen von den prinzipiellen Gegebenheiten für Mobilitätsangebote im ländlichen Raum weist die freizeittouristische Nachfrage einige grundsätzliche Spezifika auf, die bei der Konzeption zu berücksichtigen sind.
Darüber hinaus berühren freizeittouristische Mobilitätsangebote auch auf der Angebotsseite eine Vielzahl von unterschiedlichen Akteuren. Isolierte bzw. suboptimal bei den relevanten Akteursgruppen verankerte Aktivitäten sind ein weiterer Faktorenkomplex, der mit zu der insuffizienten Nachfrage beiträgt. Neben den nachfrageseitigen Rahmenbedingungen kommt damit organisationalen Aspekten und auch der Frage der Finanzierung eine wichtige Bedeutung zu.
Am Beispiel von zwei Good Practise Beispielen wird veranschaulicht, dass eine Berücksichtigung der relevanten Rahmenbedingungen durchaus dazu führen kann, langfristig ökonomisch tragfähige Lösungen für touristische Freizeitverkehre im ländlichen Raum zu implementieren.
Nanotechnology is the term given to those areas of science and engineering where phenomena that take place at dimensions in the namometre scale are utilized in the design, characterisation, production and application of materials, structures, devices and systems.
Nanotechnology is a field that deals with things at molecular level that is as tiny as 10^(-9) of units and finds very useful implementations from cleaning clothes to curing the "incurable"--CANCER.
Nanorobotics,
Application of Nanorobotics,
Parts of Nanorobotics, challenges
cons of nanorobots
nanorobot drug delivery
nanorobotics in cancer
nanorobot in blood clot
nanorobotics in kidney stone
use of nanorobots in cell surgery
nanotechnology in gout
This slide is basically on Nanotech. I've given presentation on "Nanotech" in 192 semester. I've tried my best to shown that how this tech work, what are the features, what is the future of this tech. I've also added a video footage at the starting of the slide. Hope you like it. Thank you.
Stay tuned.
Nanotechnology: Unleashing the Marvels of the Minuscule | Enterprise WiredEnterprise Wired
This article unravels the intricate world of Nanotechnology, exploring its foundational principles, diverse applications across industries, the potential impact on various sectors, ethical considerations, and the promising future it heralds.
Nanotechnology_20231223_114542_0000.pdf in questions type presentationManishKumar822818
This is a presentation ppt on nanotechnology. This is a short presentation on nanotechnology.
This is question type presentation.
Topics covered is :
What is nanotechnology?
What is the current state of nanoscience and nanotechnology?
What are the physical and chemical properties of nanoparticles?
How are nanoparticles formed?
What are the uses of nanoparticles in consumer products?
What are potential harmful effects of nanoparticles?
How can exposure to nanoparticles be measured?
Are current risk assessment methodologies for nanoparticles adequate?
Conclusion
A Review Paper on Latest Biomedical Applications using Nano-Technologyijsrd.com
At present, Nano technology has been improved in many ways but it had improved a lot in the case of Nano Medicine.It also plays a major role in engineering basis. The application of nano technology in medicine is called as Nano medicine. This paper explains the detail regarding Nano medicine. Nano technology has many molecular properties and applications of biological nano structure. These have physical, chemical and biological properties. These are mainly used to diagonize diseases from our body. Nano technology has special application in Nano medicine using Nano robot. This paper relates the use of Nano robots in surgeries. thes Nano robots are not oly safebut also faster. The size of these nano robot is 1-100nm.These use to cure many problems.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
2024.06.01 Introducing a competency framework for languag learning materials ...
In medicine
1. ONLINE ASSIGNMENT
Submitted By,
Saranya.S
Physical Science
Reg. No.: 18214367012
NANO TECHNOLOGY : APPLICATIONS IN
MEDICINE AND POSSIBLE SIDE EFFECTS
INTRODUCTION
Nanotechnology is the study, design, creation, synthesis,
manipulation, and application of materials, devices, and systems at the
nanometer scale (One meter consists of 1 billion nanometers). It is
2. becoming increasingly important in fields like engineering, agriculture,
construction, microelectronics and health care to mention a few. The
application of nanotechnology in the field of health care has come under
great attention in recent times. There are many treatments today that
take a lot of time and are also very expensive. Using nanotechnology,
quicker and much cheaper treatments can be developed. By performing
further research on this technology, cures can be found for diseases that
have no cure today. We could make surgical instruments of such
precision and deftness that they could operate on the cells and even
molecules from which we are made - something well beyond today's
medical technology. Therefore nanotechnology can help save the lives of
many people.
WHAT IS NANOTECHNOLOGY?
This section discusses the advantages of nanotechnology,
differentassembly approaches and applicationsin variousfields.
A. Advantages of using Nanotechnology
All manufactured products are made from molecules. The
properties of these products depends on how molecules are arranged.
For exampleif we arrangemolecules in coal we get diamonds.
Figure 1. All products are made individual molecules
3. Nanotechnology is the science and engineering involved at
the nanometer scale (molecular level). At this scale we consider
individual molecules and interaction between those molecules.
Therefore nanotechnology can be used to achieve positional control with
a high degree of specificity. Thus our products can have the desired
physical and chemical properties. This is the greatest advantage of
using nanotechnology and brings mankind one step closer towards
perfection.
B. Assembly approaches
There are two main approaches for the synthesis of nano-
engineered materials. They can be classified on the basis of how
moleculesare assembled to achieve the desired product.
1. Top– down technique
The top – down technique begins with taking a macroscopic
material (the finished product) and then incorporating smaller scale
details into them. The molecules are rearranged to get the desired
property. This approach is still not viable as many of the devices used to
operate at nano level are still being developed.
2. Bottom – up approach
The bottom – up approach begins by designing and
synthesizing custom made molecules that have the ability to self-
replicate. These molecules are then organized into higher macro-scale
structures. The molecules self replicate upon the change in specific
physical or chemical property that triggers the self replication. This can
be a change in temperature, pressure, application of electricity or a
4. chemical. The self replication of molecule has to be carefully controlled
so it doesnot go out of hand.
C. Applications in various fields
Nanotechnology should let us make almost every
manufactured product faster, lighter, stronger, smarter, safer and
cleaner. The following are some areas in which nanotechnology can
have tremendousconsequences.
• Transportation
• Atomic Computers
• Military Applications
• Solar cells
APPLICATION IN MEDICALSCIENCE
This section discusses the applications of nanotechnology in the
field of health care. These applications can remarkably improve the
currenttreatments of somediseases and help savethe lives of many.
A. Drug Delivery System
1.Nanobots
Nanobots are robots that carry out a very specific function and are
just several nanometers wide. They can be used very effectively for drug
delivery. Normally, drugs work through the entire body before they
reach the disease-affected area. Using nanotechnology, the drug can be
targeted to a precise location which would make the drug much more
effective and reduce the chances of possible side-effects. Figure 1 below
shows a device that uses nanobots to monitor the sugar level in the
blood.
5. Figure 2. Device Using Nanobots for Checking Blood Contents
2. Drug delivery procedure
The drug carriers have walls that are just 5-10 atoms thick
and the inner drug-filled cell is usually 50-100 nanometers wide. When
they detect signs of the disease, thin wires in their walls emit an
electrical pulse which causes the walls to dissolve and the drug to be
released
3. Advantages ofusing nanobots for drug delivery
A great advantage of using nanobots for drug delivery is that the
amount and time of drug release can be easily controlled by controlling
the electrical pulse . Furthermore, the walls dissolve easily and are
therefore harmless to the body.
B.Disease Diagnosis and Prevention
1. Quantum dots
Quantum dotsare nanomaterials that glow very brightly when
illuminated by ultravioletlight. They can be coated with a material that
makes the dotsattach specifically to the moleculethey wantto track.
Quantum dotsbind themselves to proteinsuniqueto cancer cells,
literally bringing tumorsto light.
6. Figure 3. A LIGHTIN DARK PLACES: Spectral imaging of quantum dots.
Orange-red fluorescence signals indicate a prostate tumor growing in a
live mouse
7. 2 .Preventing diseases
a. heart-attack prevention
Nanobots can also be used to prevent heart-attacks. Heart-
attacks are caused by fat deposits blocking the blood vessels. Nanobots
can be made for removingthese fat deposits.
b. frying tumors
Nanomaterials have also been investigated into treating
cancer. The therapy is based on “cooking tumors” principle. Iron
nanoparticles are taken as oral pills and they attach to the tumor. Then a
magnetic field is applied and this causes the nanoparticles to heat up
and literally cook the tumorsfrom insideout.
c. Medical Tools
Nano-devices are nanoparticles that are created for the
purpose of interacting with cells and tissues and carrying out very
specific tasks. The most famous nano-devices are the imaging tools. Oral
pills can be taken that contain miniature cameras. These cameras can
reach deep parts of the body and provide high resolution pictures of
cells as small as 1 micron in width (A red blood cell is 7 microns wide).
This makes them very useful for diagnosis and also during operations.
Figure 4 below shows such cameras working with other nanoparticles
to get rid of a disease.
8. Figure 4. Miniature Cameras Inside Blood Vessels
An accelerometer is a very useful nano-device that can be
attached to the hip, knee or other joint bones to monitor movements
and strain levels. Dressings can be coated with silver nanoparticles to
make them infection-resistant. The nanoparticles kill bacteria and
therefore reducechances of infection.
PROBLEMS WITH USINGNANOTECHNOLOGY
Nanotechnology is a potentially limitless collection of
technologies and associated materials.
A. Environmental Problems
The greatest risk to the environment lies in the rapid expansion
and development of nanoparticles using large scale production. A
recent study showed that certain nanoparticles have a tendency to
form aggregates that are very water soluble and bacteriocidal(capable
of killing bacteria) and that can be catastrophic as bacteria are the
foundation of the ecosystem .
9. B. HealthProblems
The risk of nanoparticles to the health of human beings is of far
greater concern. Nanoparticles are likely to make contact with the
body via the lungs, intestines and skin.
1. Risk to Lungs
Nanoparticles are very light and can easily become
airborne. They can easily be inhaled during the manufacturing
process where dust clouds are a common occurrence. Particles
passing into the walls of air passage can worsen existing air disease
such as asthma and bronchitis and can be fatal
The following illustration shows how nanoparticles can
be inhaled and travel throughout the body.
Figure 5. Tracing how nanoparticles can be inhaled and travel to the
brain, lungs and the bloodstream
10. 2. Effects on Brain
Some nanoparticles that are inhaled through the nose can
move upward into the base of the brain. This may damage the brain and
the nervoussystem and could be fatal.
3. Problems inBlood
Nanoparticles flowing thorough the bloodstream may affect
the clotting system which may result in a heart-attack. If these
nanoparticles travel to organs like the heart or the liver, they may affect
the functionality of these organs
11. CONCLUSION
Nanotechnology is still in its early stages. The applications
discussed is already been developed and are already helping patients
all over the world. As further research continues in this field, more
treatments will be discovered. Many diseases that do not have cures
today may be cured by nanotechnology in the future. Some of the
concerns were also discussed but with proper care these problems can
be avoided. Scientists who are against the use of nanotechnology also
agree that advancement in nanotechnology should continue because
this field promises great benefits, but testing should be carried out to
ensure the safety of the people. If everything runs smoothly,
nanotechnology will one day become part of our everyday life and will
help save many lives.
12. REFERENCES
1. Donaldson, Ken, and Vicki Stone. “Nanoscience Fact Versus
Fiction.” Association for ComputingMachinery (Nov. 2004): 113.
2. Perkel, M Jeffrey. “The Ups and Downs of Nanobiotech.” The
Scientist 30 Aug. 2004: 1-8
3. Silva, Gabriel A. “Introduction to Nanotechnology and Its
Applications to Medicine.” Surgical Neurology 61.3 (Mar. 2004):
216-220