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biological influence
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Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006073
EISBN: 978-1-62708-172-6
...-internal stress, and vibration-external stress; and (4) biological influences such as microbiological, mildew, and marine fouling. biological influence coating degradation energy paints permeation pigments stress PAINTS AND COATINGS of all types are widely used to provide color...
Abstract
This article discusses the environmental influences on protective coating films that can result in deterioration. These environmental factors can be classified into four groups: (1) energy: solar, heat; (2) permeation: moisture, solvent, chemical, and gas; (3) stress: drying and curing-internal stress, and vibration-external stress; and (4) biological influences such as microbiological, mildew, and marine fouling.
Book: Corrosion: Materials
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003844
EISBN: 978-1-62708-183-2
... (solar radiation, heat and temperature variation, and nuclear radiation), permeation (moisture, solvent retention, chemical, and oxygen), stress (drying and curing, vibration, and impact and abrasion), and biological influences (microbiological and macrobiological). coatings paints protective...
Abstract
Paints and protective coatings are the most common means of protecting materials from deterioration. This article focuses on coating degradation that results from the environmental interaction with the coatings. The major environmental influences of the degradation include energy (solar radiation, heat and temperature variation, and nuclear radiation), permeation (moisture, solvent retention, chemical, and oxygen), stress (drying and curing, vibration, and impact and abrasion), and biological influences (microbiological and macrobiological).
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006788
EISBN: 978-1-62708-295-2
... Abstract This article focuses on the mechanisms of microbiologically influenced corrosion as a basis for discussion on the diagnosis, management, and prevention of biological corrosion failures in piping, tanks, heat exchangers, and cooling towers. It begins with an overview of the scope...
Abstract
This article focuses on the mechanisms of microbiologically influenced corrosion as a basis for discussion on the diagnosis, management, and prevention of biological corrosion failures in piping, tanks, heat exchangers, and cooling towers. It begins with an overview of the scope of microbial activity and the corrosion process. Then, various mechanisms that influence corrosion in microorganisms are discussed. The focus is on the incremental activities needed to assess the role played by microorganisms, if any, in the overall scenario. The article presents a case study that illustrates opportunities to improve operating processes and procedures related to the management of system integrity. Industry experience with corrosion-resistant alloys of steel, copper, and aluminum is reviewed. The article ends with a discussion on monitoring and preventing microbiologically influenced corrosion failures.
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001119
EISBN: 978-1-62708-162-7
... Abstract Metal contamination of the environment reflects both natural sources and industrial activity, affecting human health. This article begins with a discussion on the level of metal exposure resulting in toxicological effects, the factors influencing toxicity of metals, and carcinogenicity...
Abstract
Metal contamination of the environment reflects both natural sources and industrial activity, affecting human health. This article begins with a discussion on the level of metal exposure resulting in toxicological effects, the factors influencing toxicity of metals, and carcinogenicity of metal compounds. It discusses some commonly used chelating agents for treating metal intoxication, and clinical effectiveness in treating poisoning by different metals. The metals discussed are grouped into four categories: (1) major toxic metals with multiple effects, including arsenic, beryllium, cadmium, chromium, lead, mercury, and nickel; (2) essential metals with potential for toxicity, including cobalt, copper, iron, manganese, molybdenum, selenium, and zinc; (3) metals with toxicity related to medical therapy, including aluminum, bismuth, gallium, gold, lithium, and platinum; and (4) minor toxic metals, including antimony, barium, indium, magnesium, silver, tellurium, thallium, tin, titanium, uranium, and vanadium. The main factors included in the discussion are their disposition, toxicity, biological factors and treatment.
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004208
EISBN: 978-1-62708-184-9
... to this situation. Here, the primary concern is not the biological effects of anodic dissolution, but rather how the presence of these materials in relation to human anatomy and physiology affects the ultimate mechanical failure of the implanted device. The influence of mechanical forces on corrosion behavior...
Abstract
This article provides information on biomedical aspects such as active biological responses and the chemical environment characterizing the internal physiological milieu, as well as electrochemical fundamentals needed for characterizing corrosion fatigue (CF) and stress-corrosion cracking (SCC). It discusses some of the mechanical and electrochemical phenomena related to the in vivo degradation of materials used for biomedical applications. These materials include stainless steels, cobalt and titanium-base alloy systems, and dental amalgam. The article addresses key issues related to the simulation of the in vivo environment, service conditions, and data interpretation. The factors influencing susceptibility to CF and SCC are reviewed. The article describes the testing methodology of CF and SCC. It also summarizes findings from laboratory testing, in vivo testing and retrieval studies related to CF and SCC.
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005667
EISBN: 978-1-62708-198-6
... Abstract This article discusses several aspects of biocompatibility of polymers, including the selection of a suitable polymer, specific use of a material, contact of polymer on body site, and duration of the contact. It describes the factors influencing the biological response of the polymer...
Abstract
This article discusses several aspects of biocompatibility of polymers, including the selection of a suitable polymer, specific use of a material, contact of polymer on body site, and duration of the contact. It describes the factors influencing the biological response of the polymer from a biocompatibility perspective. These include raw materials, the manufacturing process, cleaning and sterilization processes, and biodegradation and biostability. The article reviews the general testing methods of polymers, such as chemical, mechanical and thermal. It concludes with a section on the guidance, provided by the regulatory authorities, on the biocompatibility testing of polymers and polymer-containing devices that can aid in selecting the right analysis.
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003637
EISBN: 978-1-62708-182-5
... the corrosion engineering perspective is to determine when the influence of the organisms is important enough that effective corrosion control cannot be achieved without specifically addressing the microbial effect. General Mechanisms by Which Biological Organisms Influence Corrosion The presence...
Abstract
This article focuses on the effects of microscopic organisms and the by-products they produce on the electrochemical corrosion of metals. The general characteristics of the microorganisms that facilitate their influence on the electrochemistry of corrosion are discussed. The industries most often reported as being affected by microbiological corrosion are listed, along with the organisms usually implicated in the attack. The article explains that the influence of organisms can be addressed successfully for a corrosion control program by using four types of evidence: metallurgical, microbiological, chemical, and electrochemical. It provides information on the microbiologically influenced corrosion (MIC) of irons and steels, passive alloys (austenitic stainless steels), aluminum alloys, copper alloys, and composites. The article reviews the formation of microbial biofilms and macrofouling films. It also describes the general approaches taken to prevent MIC.
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003556
EISBN: 978-1-62708-180-1
... Abstract This article focuses on the mechanisms of microbially induced or influenced corrosion (MIC) of metallic materials as an introduction to the recognition, management, and prevention of microbiological corrosion failures in piping, tanks, heat exchangers, and cooling towers. It discusses...
Abstract
This article focuses on the mechanisms of microbially induced or influenced corrosion (MIC) of metallic materials as an introduction to the recognition, management, and prevention of microbiological corrosion failures in piping, tanks, heat exchangers, and cooling towers. It discusses the degradation of various protective systems, such as corrosion inhibitors and lubricants. The article describes the failure analysis of steel, iron, copper, aluminum, and their alloys. It also discusses the probes available to monitor conditions relevant to MIC in industrial systems and the sampling and analysis of conditions usually achieved by the installation of removable coupons in the target system. The article also explains the prevention and control strategies of MIC in industrial systems.
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005686
EISBN: 978-1-62708-198-6
... Abstract This article provides a background to the biological evaluation of medical devices. It discusses what the ISO 10993 standards require for polymeric biomaterials and presents examples of qualitative and quantitative tests that can be used to satisfy these requirements. The article...
Abstract
This article provides a background to the biological evaluation of medical devices. It discusses what the ISO 10993 standards require for polymeric biomaterials and presents examples of qualitative and quantitative tests that can be used to satisfy these requirements. The article describes infrared (IR) and thermal analyses that are used extensively to fingerprint polymeric materials. It also presents a discussion on the chemical characterization and risk assessment of extracts. Background information on risk assessments of extracts is also included. The four basic steps that are commonly used in the risk assessment process are discussed. These include hazard identification, dose-response assessment, and exposure assessment, and risk characterization.
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004105
EISBN: 978-1-62708-184-9
... A similar effect has sometimes been observed for iron and steel corrosion products generated upstream of aluminum components in desalination plants. However, the effect of iron contamination is not as strong or as consistent as that of copper. Influence of Biological Organisms Seawater...
Abstract
This article discusses the general properties of ocean water and their effects on corrosion. It describes the major and minor features of the ocean water on corrosion, including the effects of variability, pollutants, and fouling organisms. Effects of water flow velocity on marine corrosion are also reviewed.
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005655
EISBN: 978-1-62708-198-6
... defined by Williams as “non-viable materials used in a medical device, intended to interact with biological systems” ( Ref 1 ). Ceramics used in such biological applications are commonly referred to as bioceramics. History of Bioceramics Biocompatibility has been defined by Williams as “the ability...
Abstract
Ceramics are used widely in a number of different clinical applications in the human body. This article provides a brief history of the bioceramics field and discusses the classification of bioceramics. These include bioinert ceramics, bioactive ceramics, and bioresorbable ceramics. The article describes third-generation bioceramics, classified by Hench and Polak, such as silicate-substituted hydroxyapatite and bone morphogenic protein-carrying calcium phosphate coatings. It reviews several examination methods used to test the biocompatibility of ceramics, namely, biosafety testing, biofunctionality testing, bioactivity testing, and bioresorbability testing.
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006887
EISBN: 978-1-62708-392-8
... Abstract Stereolithographic (STL) additive manufacturing (AM) can be used to fabricate practical components. This article discusses the processes involved in STL-AM of biological scaffolds, providing information on bioscaffold processing, cavity arrangements, and microlattice distributions...
Abstract
Stereolithographic (STL) additive manufacturing (AM) can be used to fabricate practical components. This article discusses the processes involved in STL-AM of biological scaffolds, providing information on bioscaffold processing, cavity arrangements, and microlattice distributions. Within the last topic, the sub-topic of scaffold modulation is discussed.
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006908
EISBN: 978-1-62708-392-8
... of the constituting unit cells of the porous structure. The details of the internal geometrical lattice design and the influence of various dimensional design parameters ( Table 9 ) on implant mechanical, biological, and functional properties are discussed in the section “Patient-Matched Device Design...
Abstract
Additive manufacturing, or three-dimensional printing technologies, for biomedical applications is rather different from other engineering components, particularly for biomedical implants that are intended to be used within the human body. This article contains two sections: "Design and Manufacturing Considerations of 3D-Printed, Commercially Pure Titanium and Titanium Alloy-Based Orthopedic Implants" and "Device Testing Considerations Following FDA Guidance" for additive-manufactured medical devices. These are further subdivided into five major focus areas: materials; design, printing, printing characteristics and parameters as well as postprinting validation; removal of the many manufacturing material residues and sterilization; physical, chemical, and mechanical assessments of the final devices; and biological considerations of all the final devices including biocompatibility.
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006856
EISBN: 978-1-62708-392-8
... the previous improvements needed to design bioinks with an appropriate resolution with cell viability ( Fig. 5a ) ( Ref 66 ). The application of bioinks for 3D printing applications is influenced by several physical, chemical, and biological characteristics. Viscosity, shear-thinning, viscoelasticity...
Abstract
This article begins with a description of extrusion-based bioprinting for tissue scaffold fabrication. It also examines various extrusion-based bioprinting processes and related tissue scaffolding strategies, presents the selection criteria of various bioinks with various polymers and their printed scaffolds for applications in tissue engineering and regenerative medicines, and provides future research recommendations to address the shortcomings and issues found in current extrusion-based bioprinting processes.
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006853
EISBN: 978-1-62708-392-8
... properties, manufacturing processes, and the particular surface modifications and treatments that have rendered its surfaces biologically compatible with peri-implant soft and hard tissues. aesthetics biocompatibility dental implants zirconia TOOTH REPLACEMENT, and the search for viable options...
Abstract
One of the most frequently cited advantages of ceramics in dentistry relates to aesthetics, and the same applies for dental implants. Zirconia has emerged as the material of choice for nonmetal implants. This article introduces the reader to zirconia as an implant material, its properties, manufacturing processes, and the particular surface modifications and treatments that have rendered its surfaces biologically compatible with peri-implant soft and hard tissues.
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005659
EISBN: 978-1-62708-198-6
... Abstract This article provides a summary of the biocompatibility or biological response of metals, ceramics, and polymers used in medical implants, along with their clinical issues. The polymers include ultrahigh-molecular-weight polyethylene, nonresorbable polymer, and resorbable polymers...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006059
EISBN: 978-1-62708-172-6
... copper copper alloys corrosion control ductile iron ferrous metals localized corrosion microbiologically influenced corrosion municipal wastewater systems protective coatings reinforced concrete pipes wastewater treatment THE PURPOSE OF THIS ARTICLE is to acquaint the reader with useful...
Abstract
This article provides information on the municipal wastewater system components such as piping, pump stations, headworks, clarifiers, aeration structures, digesters, biosolids dewatering equipment, and sludge stabilization. It explains the major corrosion damage mechanisms to which those component parts of the system are exposed. It presents useful guidelines for selecting and using protective coatings in municipal sewerage collection systems and water reclamation facilities in wastewater treatment plants. The article includes annotated flow diagrams of a wastewater collection system, wastewater treatment plants, and spreadsheets listing the most widely used generic coating systems by structure and substrate material. It concludes with a section on quality watchouts when selecting or using protective coatings in municipal wastewater systems.
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006889
EISBN: 978-1-62708-392-8
... biomedical-based devices: binder jetting, powder-bed fusion, and directed-energy deposition. The article then characterizes the electrochemical properties of additive-manufactured/processed cobalt-chromium alloys. This is followed by sections providing an evaluation of the biological response to CoCr alloys...
Abstract
This article discusses some of the additive manufacturing (AM) based fabrication of alloys and their respective mechanical, electrochemical, and in vivo performance. Firstly, it briefly discusses the three AM techniques that are most commonly used in the fabrication of metallic biomedical-based devices: binder jetting, powder-bed fusion, and directed-energy deposition. The article then characterizes the electrochemical properties of additive-manufactured/processed cobalt-chromium alloys. This is followed by sections providing an evaluation of the biological response to CoCr alloys in terms of the material and 3D printing fabrication. Discussion on the biological response as a function of direct cellular activity on the surface of CoCr alloys in static conditions (in vitro), in dynamic physiological conditions (in vivo), and in computer-simulated conditions (in silico) are further discussed in detail. Finally, the article provides information on the qualification and certification of AM-processed medical devices.
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003670
EISBN: 978-1-62708-182-5
... Abstract This article explains how an engineer might go about assessing the risk of microbiologically influenced corrosion (MIC) in an industrial situation. It describes the systems that are susceptible to the effects of MIC by sulfate-reducing bacteria (SRB). The article discusses the effects...
Abstract
This article explains how an engineer might go about assessing the risk of microbiologically influenced corrosion (MIC) in an industrial situation. It describes the systems that are susceptible to the effects of MIC by sulfate-reducing bacteria (SRB). The article discusses the effects of microorganisms other than SRB on metals. SRB-related problems, which are the most common MIC issue, are also explored. The article describes the test procedures used to enumerate microbiological populations. It concludes with a discussion on risk assessment based on operating conditions.
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006892
EISBN: 978-1-62708-392-8
... droplets of a bioink layer by layer to create biological constructs ( Fig. 1c ). Odde et al. ( Ref 1 ) used this technique in 1999 to fabricate a 3D cell-laden structure by accurately depositing droplets of cell-containing fibronectin. Since then, laser-assisted jetting has often been used in biomedical...
Abstract
Microvalve jetting, with its advantages of low cost, ease of operation, high printing speed, and ability to process living cells with high viability, has been primarily used for fabricating high-throughput drug-screening models, in vitro cellular structures for fundamental cell biology research, and cell-laden structures for regenerating tissues or organs in the human body after disease or trauma. This article provides an overview of microvalve jetting of biomaterials, including operational parameters. The jetting technologies covered are inkjet printing, microvalve jetting, and laser-assisted jetting. The parameters covered include nozzle size (nozzle inner diameter), pneumatic pressure, valve-opening time, and printing speed of microvalve jetting. Subsequently, the article discusses biomaterials for microvalve jetting in terms of biomaterial definition, required properties for a suitable biomaterial, currently used biomaterials, and cells and cellular structures. Additionally, applications of microvalve jetting in biomedical engineering are presented, which include cellular and RNA analysis, high-throughput drug screening, and tissue engineering.
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