Author: Hideharu Shintani Publisher: Caister Academic Press Limited ISBN: 9781910190258 Category : Medical Languages : en Pages : 0
Book Description
Gas plasma is the fourth state of matter, alongside solid, liquid, and gas. There are many naturally-occurring events and man-made products related to gas plasma, including aurora, thunderstorms, high-intensity discharge headlamp bulbs, oxonizers, semiconductors, and solar battery panels. A gas plasma is generated by removing electrons from a gas, e.g. nitrogen gas, to produce a highly-excited mixture of charged nuclei and free electrons. It has enormous potential as a broad spectrum antimicrobial sterilization procedure with applications in medical, industrial, and agricultural settings (e.g. decontamination of medical instruments). A major advantage is the shallow penetration of gas plasmas: approximately 10-20 nanometers from the surface, thereby minimizing damage to the material being sterilized. An important obstacle to overcome is the 'understanding-gap' between the engineering researchers who are developing the gas plasma sterilization technology and the microbiologists who aim to fine tune it for their needs. This timely book bridges that gap, permitting engineers and microbiologists to develop more coherent multidisciplinary strategies. The book opens with introductory chapters that explain the background and principles of gas plasma sterilization and outline the possible mechanisms of action. The requirements for achieving the 'gold-standard' sterilization level, i.e. a sterility assurance level (SAL) of 10-6, are also covered. The book also covers the applications of this technology, ranging from the inactivation of spores and endotoxins to inactivation of viruses and seed-borne plant pathogens. The final section of the book tackles sterilization validation (from several ISO documents), common data-interpretation errors, and speculation about future trends. [Subject: Microbiology, Engineering]
Author: Akikazu Sakud Publisher: Nova Biomedical Books ISBN: 9781616687823 Category : Disinfection and disinfectants Languages : en Pages : 0
Book Description
With the increased importance of hospital administration and continuous emergence of new infectious pathogens, particular attention should be paid to avoid iatrogenic diseases by minimising the contamination of medical instruments with infectious pathogens and toxins. It is well known that one of the most effective ways to prevent hospital-acquired infection is to implement a sterilisation and disinfection system that includes physical and chemical inactivation methods. This book presents information on the current status and future perspectives of a state-of-art physical technique, gas plasma sterilisation.
Author: Zdenko Machala Publisher: Springer Science & Business Media ISBN: 9400728522 Category : Science Languages : en Pages : 479
Book Description
Non-thermal (cold) plasmas at atmospheric pressure have recently found many breakthrough applications in biology, medicine, and food security. Plasmas can efficiently kill bacteria, yeasts, moulds, spores, biofilms and other hazardous microorganisms, including potential bio-terrorism agents. They can be employed for bio-decontamination and sterilization of surfaces, medical instruments, water, air, food, even of living tissues without causing their damage. Direct or indirect plasma interaction with living cells of microorganisms or even humans enables novel bio-medical applications, e.g. treatment of skin diseases and ulcers. Plasma-enhanced blood coagulation coupled with its antiseptic properties proved success in wound healing and opens new possibilities in surgery, emergency medicine and military applications. Plasma treatment allows cell manipulations, their removal and targeted transfer into the injured area, which can accelerate wound healing. Plasma induced apoptosis (programmed cell death) of tumor cells brings forth a great potential for cancer treatment. Besides, plasma enables painless treatment of dental caries, root canal disinfection, and other dentistry applications. This book is a selection of reviewed manuscripts issuing from the NATO Advanced Research Workshop Plasma for bio-decontamination, medicine and food security held in Jasná, Slovakia, on 15-18 March 2011. It provides a comprehensive overview of the current knowledge and research activities focused at the plasma applications in areas such as bio-decontamination, water chemistry, effects on cells; biofilm inactivation, UV sterilization, and medicine, especially tissue treatment and wound healing, as well as dentistry and food security.
Author: Tian Ding Publisher: Springer Nature ISBN: 9811618275 Category : Technology & Engineering Languages : en Pages : 357
Book Description
This book provides readers with a comprehensive overview of cold plasma technology for tackling the various food-related hazards in a wide range of food sectors. The principles and characteristics of cold plasma generation in gas and its interaction with liquids, as well as its combating modes of action for common hazards (e.g., bacteria, spores, biofilms, fungi, and fungal toxins) are emphasized in this book. It also presents the applications of cold plasma or its hurdles with other techniques to assure the microbiological safety of the key food classifications, including fruits, vegetables, cereals, grains, meat, aquatic products, liquid food products (e.g., juices, milk), nuts, spices, herbs, and food packaging. This book is useful for researchers to grasp the comprehensive understandings of how food safety can be controlled with cold plasma technology. This book also provides adequate information for engineers in food industry for better development and optimization of the plasma-generating systems. Government institutions that are responsible for food safety regulations can understand more knowledge about the intricacies and influencing factors, which should be considered for regulating the applications of cold plasma technology in food.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Steady-state atmospheric pressure nonthermal plasmas can splendidly debilitate bacteria in liquids, gases and on surfaces, as well as can disintegrate hazardous chemicals. The nonthermal gas discharge at atmospheric pressure, such as resistive barrier discharge is investigated for low temperature sterilization purposes. In specific, exploring and understanding the hidden secrets of the plasma sterilization mechanisms and the intensification of the main microbial reduction pathways are the objectives of the research. A dual-mode steady-state atmospheric pressure resistive barrier ionized gas (plasma) generator has been designed and developed to meet the environmental health and federally mandated safety standards. Electrical, chemical, optical, and biological studies are carried out on the Steady-State, Atmospheric Pressure Resistive Barrier Discharge, with the intent of identifying the chemically and biologically active species produced. The goals of the research work are to prepare an effective, inexpensive plasma sterilization process and to identify and escalate the main contributing active species responsible for plasma sterilization. The effectiveness of ionized gases produced by the resistive barrier plasma discharge on sterilizing bacteria has been analyzed. Bacteria at a dilution that achieved a countable number of colonies were exposed or not exposed to ionized gases for various periods of time and monitored to determine the effects of ionized gas treatment.
Author: Sophie Lerouge Publisher: Elsevier ISBN: 0857096265 Category : Medical Languages : en Pages : 347
Book Description
The effective sterilisation of any material or device to be implanted in or used in close contact with the human body is essential for the elimination of harmful agents such as bacteria. Sterilisation of biomaterials and medical devices reviews established and commonly used technologies alongside new and emerging processes.Following an introduction to the key concepts and challenges involved in sterilisation, the sterilisation of biomaterials and medical devices using steam and dry heat, ionising radiation and ethylene oxide is reviewed. A range of non-traditional sterilisation techniques, such as hydrogen peroxide gas plasma, ozone and steam formaldehyde, is then discussed together with research in sterilisation and decontamination of surfaces by plasma discharges. Sterilisation techniques for polymers, drug-device products and tissue allografts are then reviewed, together with antimicrobial coatings for 'self-sterilisation' and the challenge presented by prions and endotoxins in the sterilisation of reusable medical devices. The book concludes with a discussion of future trends in the sterilisation of biomaterials and medical devices.With its distinguished editors and expert team of international contributors, Sterilisation of biomaterials and medical devices is an essential reference for all materials scientists, engineers and researchers within the medical devices industry. It also provides a thorough overview for academics and clinicians working in this area. - Reviews established and commonly used technologies alongside new and emerging processes - Introduces and reviews the key concepts and challenges involved in sterilisation - Discusses future trends in the sterilisation of biomaterials and medical devices
Author: Adam P. Fraise Publisher: John Wiley & Sons ISBN: 0470755067 Category : Medical Languages : en Pages : 691
Book Description
Highly respected, established text – a definitive reference in its field – covering in detail many methods of the elimination or prevention of microbial growth "highly recommended to hospital and research personnel, especially to clinical microbiologists, infectioncontrol and environmental-safety specialists, pharmacists, and dieticians." New England Journal of Medicine WHY BUY THIS BOOK? Completely revised and updated to reflect the rapid pace of change in this area Updated material on new and emerging technologies, focusing on special problems in hospitals, dentistry and pharmaceutical practice Gives practical advise on problems of disinfection and antiseptics in hospitals Discusses increasing problems of natural and acquired resistance to antibiotics New contributors give a fresh approach to the subject and ensure international coverage Systematic review of sterilization methods, with uses and advantages outlined for each Evaluation of disinfectants and their mechanisms of action
Author: Silvia I. Acosta-Gnass Publisher: Pan Amer Health Org ISBN: 9789275129265 Category : Medical Languages : en Pages : 167
Book Description
This updated sterilisation manual informs health workers about the simple protocols and procedures that have been developed to prevent hospital-acquired infections both inside and outside the sterilisation plant. The guidelines included in this manual show the steps to follow in cleaning, preparing, sterilizing, storing and transporting hospital equipment so as to obtain sterile material. It is very important to be aware of this information in order to provide patients with safe health care.
Author: Hideharu Shintani
Author: Akikazu Sakud
Author: Zdenko Machala
Author: Tian Ding
Author: 
Author: Sophie Lerouge
Author: Ian Walter Crummey
Author: Adam P. Fraise
Author: Silvia I. Acosta-Gnass
Author: Dragoş Vicoveanu