X ray & Infrared Food Preservation Technology
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This document discusses the use of infrared radiation and pulse x-rays for food preservation applications. Infrared radiation works by causing molecular vibration and rotation, absorbing energy which generates heat, particularly affecting water and molecules with polar groups. It has various technological applications for drying, baking, roasting, and sterilization of foods. Pulse x-rays use high intensity pulses to destroy microbes like mold, bacteria, and viruses in packaged foods. Both methods inactivate microbes and have benefits like uniform heating and high quality results, though infrared has limitations with penetration and x-rays are technically complex.
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- Với khả năng tùy chọn trang bị thêm tay Laser tẩy trắng răng bằng tia Laser với thuốc tẩy trắng răng MiraWhite từ chính hãng Hager Werken, Đức.
-Tay cắt đốt cao tần với mọi tính năng tiên tiến như: cắt đốt, cầm máu.
- Phẫu thuật tạo hình nướu.
- Diệt khuẩn tăng cường ống tủy bằng tia Laser sau khi ống túy đã được lấy và rửa sạch bằng dung dịch sát khuẩn.
https://www.facebook.com/386115188817133
Harmful effects of microwaves on living beings
The presentation proves beyond any doubt, the harmful affects of microwaves and radio frequency waves on humans and other living beings
LASER SURGERY VSR.pptx
LASER SURGERY
Class 4 > 500 mW Surgical lasers
Introduction
Surgery using a laser to cut tissue instead of a scalpel
Laser scalpel
Highly focused laser beam efficiently ablates (either vaporize or chip away) the living tissue.
At the same time, it seals (welds) capillaries, small blood vessels, lymphatics, and nerve endings, with significant benefits to both patients and surgeons.
MECHANISM OF ACTION
Photovaporolysis
Char – remnant of non-fluid cellular component.
Photoplasmolysis
Crater
Zone of carbonization- the limit of vaporization
Zone of coagulation and thermal necrosis- Slightly farther away from the center. This zone will eventually die.
Zone of hyperthermia- Farthest from the center. Beyond these zones there is no effect Depth of the crater and the diameter of these zones are directly related to power density.
20-watt Carbon Dioxide laser with plume evacuator
Highly absorbed by water, making it perfect for tissue cutting, vaporization and acoustical destruction.
Thermal injury to surrounding tissue is very superficial.
Lateral thermal injury of 0.05 mm to 0.1 mm
Because there is such minimal lateral thermal damage, injury to surrounding tissues is limited to what you see during application of the laser energy.
General parameters for CO2 laser use
Routine incision: Spot Diameter: 0.4 mm
Power Setting: 6 to 10 W
Routine ablation/vaporization Spot Diameter: 0.8 mm
Power Setting: 10 to 20 W
Delicate location incision: Spot Diameter: 0.3 to 0.4 mm
Power Setting: 3 to 6 W
Routine excision: Spot Diameter: 0.8 mm
Power Setting: 8 to 15 W
LASER USES
Less Pain - The laser seals nerve endings as it cuts. So the patient will have less pain.
Less Bleeding - The laser seals small blood vessels during surgery and speeds up surgery by minimizing bleeding.
Less Swelling - No physical contact except the invisible laser beam. The tissue will not be crushed.
Sterilization - The laser sterilizes the surgical site as it cuts. Bacteria and viruses are vaporized by the laser during laser surgery.
Faster Recovery - Less bleeding and swelling will result in faster healing.
Precision - The beam direction and power can be controlled precisely to remove thin layers of tissue and produce minimal side effects on the surrounding healthy tissue.
Reduced hospitalization time - All above factor will greatly reduce the procedure time.
Laser surgery benefits for surgeons
Unique surgical capabilities: Laser surgery improves many surgical procedures by making them simpler and reducing risk. This enables surgeries that are not practical with conventional methods.
Lasers: Energy sources in urology (part 1)
This document provides information about lasers and their use in urology. It discusses the history and development of lasers, how they work, different types of lasers including Nd:YAG, KTP, Ho:YAG and Thulium lasers, and their applications in lithotripsy and prostate procedures. A key point is that newer laser technologies like thulium fiber lasers may offer advantages over previous lasers due to features such as higher efficiency, more uniform light waves, and portable air-cooled designs.
Medical applications of laser 2
Laser pumping involves transferring energy from an external source into a laser's gain medium, producing excited states in the gain medium's atoms. When there are more excited atoms than unexcited atoms, population inversion occurs, allowing stimulated emission and laser amplification or lasing. Population inversion is achieved after adequate pumping. Continuous wave lasers emit light continuously while pulsed lasers emit light in optical pulses, most commonly nanosecond pulses from Q-switched lasers. Laser-tissue interaction occurs mainly through absorption, with the light energy being transformed into heat. This results in photothermal, photoablative, or photochemical effects depending on laser parameters like intensity and pulse duration.
Tfl the game changer 28-04
Thulium Fiber Laser (TFL) is a new laser for lithotripsy that has several advantages over traditional Holmium:YAG lasers. TFL has a wavelength that is more strongly absorbed by water, allowing for better stone fragmentation. It also produces more uniform pulse energies, less retropulsion, and higher ablation rates compared to Holmium lasers. TFL systems are smaller, more efficient, cheaper to maintain, and safer for both patients and endoscopes. While TFL shows promise, further clinical studies are still needed to establish its role in lithotripsy and compare its effectiveness to Holmium lasers.
Basic Radiation Safety Awareness Training
Basic Radiation Safety Awareness Training
History of Radiation
Natural and Man-Made Background Sources of Radiation
Fundamentals
Exposure Limits & Regulations
Detection of Radiation
Safe Practices with Radiation
Biological Effects of Radiation
Where to Find Further Information
SWD
Short wave diathermy uses electromagnetic waves between 107-108 Hz to induce heating in tissues. It has both thermal and non-thermal physiological effects and can be used to treat inflammatory conditions, infections, muscle injuries and more. The document describes the production of short wave diathermy through an oscillating circuit, and discusses methods of application including capacitor and cable techniques which create electric and magnetic fields. Precautions are outlined to avoid risks like burns. In summary, it provides an overview of short wave diathermy including its mechanisms, effects, indications and application methods.
Lasers in ENT
The document discusses the use of lasers in otolaryngology. It begins with an introduction to lasers and their principles. It then describes different types of lasers used including CO2, Nd:YAG, KTP, argon lasers and their properties. Applications of lasers in ENT are discussed including uses in otology like stapes surgery, external auditory canal procedures and middle ear surgery. Rhinology procedures like turbinate reduction and septal surgery are also covered. Uses of lasers in oral cavity, pharynx, larynx and neck are summarized. Safety considerations with lasers and their delivery systems are provided.
USES OF ULTRASOUND WAVES
This document discusses various uses of ultrasound waves. It begins by defining ultrasound as sound waves with a frequency above the human hearing range. It then lists 10 common uses of ultrasound, including for cleaning, disintegration, humidifiers, welding, weapons, and various applications in medicine like sonography and therapy. Each use is then discussed in more detail with explanations and examples. The document concludes that ultrasound has diverse uses across many fields like medicine, industry, and nature.
Laser Periodontal Therapy: gingivectomy to LANAP
This lecture reviews the role of laser therapy in dentistry in particular for Periodontal treatment. Dr. Smith reviews many of his own cases with the audience.
Please contact Dr. Smith with questions.
drsmith@cpident.com
Introduction to laser dermatology 2
Laser resurfacing uses lasers to remove the outer layers of skin. Ablative laser resurfacing fully vaporizes skin to create new collagen and elastic tissue, treating conditions like wrinkles, scars, and sun damage. CO2 and Er:YAG lasers are commonly used. Side effects include erythema, hyperpigmentation, hypopigmentation, acne, and potential scarring. Precautions like antiviral use and hydrogel dressings minimize risks. Lasers provide effective skin rejuvenation but require post-operative management of side effects.
LASER.pptx
The document provides guidelines on universal precautions for handling infectious materials, including washing hands, wearing gloves, safe disposal of needles and sharps, protective eyewear, and handling contaminated linens. It also lists several classes of antiretroviral drugs used to treat HIV/AIDS, including nucleoside reverse transcriptase inhibitors, nonnucleoside reverse transcriptase inhibitors, and protease inhibitors.
Mavig cardiology
A detailed presentation on Mavig Gmbh helping save cardiologist and personnel from radiation in India via Prometheus Healthcare
Lasers and its application in Periodontics.ppt
This document provides an overview of lasers and their applications in periodontics. It begins with definitions of key laser terminology and concepts like the acronym LASEr. It describes the historical development of lasers and the parts that make up a laser system. Different types of lasers are classified based on their wavelength, active medium, and safety level. The document discusses the interactions between laser light and tissue, including absorption, photothermal, and photochemical effects. Specific dental lasers like Nd:YAG, erbium, and diode lasers are described along with their characteristics and periodontal applications. Safety considerations are also covered.
Lasers innovation of the era naglaa shawki el kilani
The document discusses lasers used in dentistry. It begins with an introduction to lasers and their history in dentistry. Key topics covered include the mechanism of action of lasers, common dental laser therapies, and safety measures when using lasers. Examples are provided of how different types of lasers like CO2, Nd:YAG, and diode lasers are used for both soft tissue and hard tissue procedures in dentistry.
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X ray & Infrared Food Preservation Technology
- 1. 1 FST 1424
- 2. 2 FST 1424 This is Supun
- 3. 3 FST 1424
- 5. 5 FST 1424
- 6. 6 FST 1424
- 7. 7 FST 1424
- 9. 9 FST 1424 Analysis Results Infrared Food Preserving Pulse X ray Package Sterilizing Prof Dexter (WUSL)
- 10. 10 FST 1424
- 11. 11 FST 1424 Wave Length 30cm -740nm Temperature above 5K emit IR Infrared? What is Frequency 3GHz up to about 400THz Comparatively Low frequency High wavelength to X rays
- 12. 12 FST 1424 Infrared? Classification 0.75-1.4 μm 1.4 – 3 μm 3 - 1000 μm Industrially IR Emitters are designed according to these categories.
- 13. 13 FST 1424 Mode of Action Infrared Causes vibration and rotation of molecules Absorb E Heat H20 Most Affected Other molecules Protiens , Lipids, CHO with polar groups (-NH, -CO, -OH, C=C) DNA and RNA can be damaged/ Ribosomes/Cell envelop/ proteins
- 14. 14 FST 1424 Inactivation Depends? • IR power level • Temperature of food sample • Peak wave length • Type of Micro organism • Affect of moisture content • Depth of food item
- 15. 15 FST 1424 Technological Applications Infrared IR Dry Blanching IR Drying & Dehydration Combined IR & Hot Air Drying Combined IR & Freeze Drying IR Baking IR Peeling Roasting Sterilization Pasterization
- 16. 16 FST 1424 Technological Applications Infrared Drying • Fruits • Vegetables • Fish • Pasta Baking • Pizza • Bread • Biscuit Roasting, Pasteurization, Sterilization • Coffee • Cacao • Cereals & Nuts • Meat
- 17. 17 FST 1424 Pros? IR Uniformity heating High quality dry food production Low cost Quick method Loss of solids is low Portability Safe Non toxic ,no harmful side effects to human or environment Surface colour development
- 18. 18 FST 1424 Cons? IR Low penetration power Eye & Skin hazards Limited applications in liquids Hurdles are needed Less consumer awareness
- 19. 19 FST 1424 Higher energy 100eV – 100KeV Short Wave Length (0.01 - 10 nm) Bremssthrahlung X-rays X Rays? What are High Frequency 3 x 1016 – 3 x 1019 Hz Comparatively High frequency Low wavelength to IR
- 20. 20 FST 1424 X ray • A pulse of high intensity • Pulses in gigawatt range • Opening time 30ns to few ns
- 21. 21 FST 1424 X Rays Produced? How
- 22. 22 FST 1424 X Rays Effective? WHY
- 23. 23 FST 1424 Mold Potato Sprouts Salmonella Spp. In Fully Packaged Form All destroyed by X ray
- 24. 24 FST 1424 Mode of Action Direct Indirect As a result of energy deposition by the radiation on the target molecule Reactive diffusible free radicals formed from the radiolysis of water OH- , eaq -, H202
- 25. 25 FST 1424 *Overall Similar to other radiation but difference makes with pulsing and how it generates High penetrating power Switch on–switch off capability No Radio active residues High throughput Pros Pulse X Rays
- 26. 26 FST 1424 Technically complex Low Consumer Acceptability No more than 7.5 Mev used Only used to PACKAGED Food Cons Pulse X Rays
- 28. 28 FST 1424 “Many studies have shown that ions, excited atoms and molecules generated during irradiation have no toxic effect on humans.” -FDA
- 29. 29 FST 1424 Thank You ! Any Questions?