+ All Categories
Home > Business > Nanomedicine

Nanomedicine

Date post: 21-Nov-2014
Category:
Upload: karim-el-sayed
View: 905 times
Download: 4 times
Share this document with a friend
Description:
Uses of Nanotechnology: 1- Diagnosis and treatment of cancer According to the US National Cancer Institute (OTIR, 2006) “Nanotechnology will change the very foundations of cancer diagnosis, treatment, and prevention”. We have already seen how nanotechnology, an extremely wide and versatile field, can affect many of its composing disciplines in amazingly innovative and unpredictable ways. Q- what is cancer ? Cancer is a disease caused by normal cells changing them so that they grow in an uncontrolled way. The uncontrolled growth can cause problems in one or more of the following ways: -spreading into normal tissues nearby. -causing pressure on other body structure. -spreading to other parts of the body through the lymphatic system or blood stream. The word cancer was first applied to the disease by Hippocrates (460–370 B.C.), the Greek philosopher, who used the words carcinos and carcinoma to refer to non-ulcer forming and ulcer forming tumors. The words refer to a crab, probably due to the external appearance of cancerous tumors, which have branch-like projections that resemble the claws of a crab.
Popular Tags:
27
Karim El-Sayed El- Abassiry
Transcript
Page 1: Nanomedicine

Karim El-Sayed El-Abassiry

Page 2: Nanomedicine

Nanotechnology is the science that deals with the processes that occur at molecular level and of nanolength scale size.

Pharmaceutical nanotechnology embraces applications of nanoscience to pharmacy as nanomaterials, and as devices like drug delivery, diagnostic, imaging and biosensor.

Introduction

Page 3: Nanomedicine
Page 4: Nanomedicine

Apoptosis

Genetics of cancer

Page 5: Nanomedicine

Insertion Mutation

Page 6: Nanomedicine

Shape of the protein

Page 7: Nanomedicine

Growing olderTobaccoSunlight

radiationCertain chemicals and other substances

Some viruses and bacteriaCertain hormones

Family history of cancerAlcohol

Page 8: Nanomedicine

Radiation

Page 9: Nanomedicine

Cancer treatment

Nanomedicine

Page 10: Nanomedicine

Diagnosis

Quantum dots

nanoparticles with quantum confinement properties

Page 11: Nanomedicine

Diagnosis

Sensor test chips

thousands of nanowires

Page 12: Nanomedicine

Nanowires

Page 13: Nanomedicine

Nanowire sensor composition

Page 14: Nanomedicine
Page 15: Nanomedicine

Diagnosis

Carbon Nano Tubes

Used to make DNA biosensors

Page 16: Nanomedicine

Carbon Nano Tubes

Page 17: Nanomedicine
Page 18: Nanomedicine

Diagnosis

Nanoscale Cantilevers

coated with molecules capable of binding to specific molecules that only cancer cells secrete

Page 19: Nanomedicine
Page 20: Nanomedicine
Page 21: Nanomedicine

Nanoparticles as Drug DeliveryMany types of nanoparticles are under various

stages of development as drug delivery systems, including liposomes and other lipid-

based carriers (such as lipid emulsions and lipid-drug complexes), polymer-drug conjugates, polymer microspheres, micelles, and various

ligand-targeted products

Page 22: Nanomedicine

Liposomes and Other Lipid-based

Nanoparticles

Page 23: Nanomedicine
Page 24: Nanomedicine

targeted to the internalizing antigen CD44 on B16F10 melanoma cells showed enhanced intracellular drug uptake from the targeted liposomes when compared with the free form of DOX. The enhanced uptake was correlated with enhanced cell killing efficacy. A liposomal formulation of cisplatin that lacked efficacy demonstrated encouraging therapeutic results when delivered in an immunoliposome targeted to an internalizing antigen. Recently, promising results were reported from a Phase I clinical study that evaluated the effect of MCC-465, a PEGylated liposomal formulation containing DOX targeted with an F(ab')2 fragment of a human mAb named GAH, in patients with metastatic stomach cancer

study of a liposome formulation of doxorubicin

(DOX)

Page 25: Nanomedicine
Page 26: Nanomedicine
Page 27: Nanomedicine

Recommended