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Journal articles on the topic 'Non-contact Biofield treatment'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Nayak, Gopal, and Nandini Altekar. "Effect of a biofield treatment on plant growth and adaptation." Journal of Environment & Health Sciences 1, no. 2 (2015): 1–9. https://doi.org/10.15436/2378-6841.15.001.

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Quantum mechanics was developed when human energies of consciousness were found to influence observations at the scale of elementary particles, here referred as non-contact biofield treat-ment or biofield energies. Quantum mechanics has also proved ef-ficacious in biological processes. The present experiments found an enhanced and significant impact of the biofield treatment on adaptive micropropagation response and callus induction of two plant spe-cies, Withania somnifera and Amaranthus dubius. The enhancement was perhaps due to greater focus on adaptation rather than specific mechanisms, sh

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Verheul, M., JW Drijfhout, BG Pijls, and PH Nibbering. "Non-contact induction heating and SAAP-148 eliminate persisters within MRSA biofilms mimicking a metal implant infection." European Cells and Materials 42 (July 14, 2021): 34–42. http://dx.doi.org/10.22203/ecm.v042a03.

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Implant-associated infections are the primary cause of complications following orthopaedic surgery. Due to biofilm and persister formation, current treatments, i.e. surgical debridement followed by antibiotics, often fail. There is an urgent need for alternative strategies to combat such infections. Therefore, the present study investigated the effects of non-contact induction heating (NCIH), the antimicrobial peptide SAAP-148 and combinations thereof on bacterial counts in 7 d mature biofilms and in persister-enriched biofilms of methicillin-resistant Staphylococcus aureus (MRSA) on titanium-

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Pijls, B. G., Ingrid M. J. G. Sanders, Ed J. Kuijper, and R. G. H. H. Nelissen. "Effectiveness of mechanical cleaning, antibiotics, and induction heating on eradication of Staphylococcus aureus in mature biofilms." Bone & Joint Research 11, no. 9 (2022): 629–38. http://dx.doi.org/10.1302/2046-3758.119.bjr-2022-0010.r1.

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Aims Here we used a mature seven-day biofilm model of Staphylococcus aureus, exposed to antibiotics up to an additional seven days, to establish the effectiveness of either mechanical cleaning or antibiotics or non-contact induction heating, and which combinations could eradicate S. aureus in mature biofilms. Methods Mature biofilms of S. aureus (ATCC 29213) were grown on titanium alloy (Ti6Al4V) coupons for seven days and were subjected to the following treatments or their combinations: antibiotics, mechanical cleaning, or heat shock by induction heating of 60°C for one minute. Experiments we

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Ismiyati, Titik. "Differences in Candida Albicans hydrophobicity and biofilm formation between thermoplastic nylon and polyether-ether-ketone denture base materials." Majalah Kedokteran Gigi Indonesia 8, no. 3 (2023): 176. http://dx.doi.org/10.22146/majkedgiind.79300.

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Polyetheretherketone (PEEK) and thermoplastics nylon are extensively composed as an alternative material for removable denture base. The primary difference between the two materials is associated with water absorption properties. The two materials interact with saliva and microorganisms during application in the oral cavity. Candida is predominantly reported in the cavity. The microorganism is distinguished by its hydrophobicity and ability to form biofilms. The objective of this study was to determine the differences between thermoplastic nylon and polyether-ether-ketone as removable denture

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WANG, RONG, JAMES L. BONO, NORASAK KALCHAYANAND, STEVEN SHACKELFORD, and DAYNA M. HARHAY. "Biofilm Formation by Shiga Toxin–Producing Escherichia coli O157:H7 and Non-O157 Strains and Their Tolerance to Sanitizers Commonly Used in the Food Processing Environment†." Journal of Food Protection 75, no. 8 (2012): 1418–28. http://dx.doi.org/10.4315/0362-028x.jfp-11-427.

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Shiga toxin–producing Escherichia coli (STEC) strains are important foodborne pathogens. Among these, E. coli O157:H7 is the most frequently isolated STEC serotype responsible for foodborne diseases. However, the non-O157 serotypes have been associated with serious outbreaks and sporadic diseases as well. It has been shown that various STEC serotypes are capable of forming biofilms on different food or food contact surfaces that, when detached, may lead to cross-contamination. Bacterial cells at biofilm stage also are more tolerant to sanitizers compared with their planktonic counterparts, whi

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Li, Xinyu, Xu Zhang, Min Zhao, Xiangyong Zheng, Zhiquan Wang, and Chunzhen Fan. "Application of Decentralized Wastewater Treatment Technology in Rural Domestic Wastewater Treatment." Sustainability 16, no. 19 (2024): 8635. http://dx.doi.org/10.3390/su16198635.

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The management of domestic wastewater in rural areas has always been challenging due to characteristics such as the wide distribution and dispersion of rural households. There are numerous domestic sewage discharge methods used in rural areas, and it is difficult to treat the sewage. To address this problem, decentralized wastewater treatment systems (DWTSs) have been installed around the globe to reuse and recycle wastewater for non-potable uses such as firefighting, toilet flushing, and landscape irrigation. This study compares the currently implemented treatment processes by investigating t

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Cao, L. "EFFECTIVE TREATMENT OF SINGLE-STAGE REVISION USING NON-CONTACT LOW FREQUENCY ULTRASONIC DEBRIDEMENT IN TREATING PERIPROSTHETIC JOINT INFECTIONS: A PROSPECTIVE CLINICAL STUDY." Orthopaedic Proceedings 106-B, SUPP_16 (2024): 7. http://dx.doi.org/10.1302/1358-992x.2024.16.007.

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Traditional mechanical debridement can only remove visibly infected tissue and is unable to completely clear all the biofilm that hides within muscle crevices and nerves. This study aims to determine the results of single-stage revision using noncontact low frequency ultrasonic debridement in treating chronic periprosthetic joint infections (PJI).A prospective study of consecutive patients requiring single-stage revision for chronic PJI was performed since August 2021. After mechanical debridement, an 8‑mm handheld non‑contact low‑frequency ultrasound probe was used for ultrasonic debridement

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Ji, Min-Kyung, Byung-Kwon Moon, Hee-Seon Kim, et al. "Assessment of Inhibition of Biofilm Formation on TiO2 Nanotubes According to Non-Thermal Plasma Treatment Conditions and the Elapsed Time in the Atmosphere." Journal of Nanoscience and Nanotechnology 20, no. 9 (2020): 5742–45. http://dx.doi.org/10.1166/jnn.2020.17658.

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Periimplantitis is an inflammation similar to periodontitis, and is caused by biofilms formed on the surface of dental implants. Application of plasma on biomaterials has been reported to decrease the initial adhesion of microorganism by causing chemical changes without changing the surface morphology. The purpose of this study is to evaluate the effect of inhibition of biofilm formation on the elapsed time after plasma treatment. Non thermal plasma generator (PGS-200 Plasma generator, Expantech Co., Korea) was applied to the specimens. The elapsed time in the atmosphere was set to 5 immediate

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Kruszelnicka, Izabela, Michał Michałkiewicz, Dobrochna Ginter-Kramarczyk, et al. "Spent Coffee as a Composite Filler for Wastewater Treatment." Materials 16, no. 3 (2023): 1181. http://dx.doi.org/10.3390/ma16031181.

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Currently composites play an important role in all aspects of engineering and technology, with constantly growing applications. Recently, more attention was focused on natural fillers due to their suitability as reinforcement materials in thermo-plastic matrices which improve the mechanical properties of these polymers. Biofillers are used due to their low cost, high strength rigidity, non-toxicity, biodegradability, and availability. Currently, spent coffee grounds (SCG) are attracting more attention as a natural filler since high amounts of SCG are generated every day (food waste of coffee p

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Verheul, Marielle, Anne A. Wagenmakers, Rob G. H. H. Nelissen, Peter H. Nibbering, and Bart G. Pijls. "Induction heating combined with antibiotics or SAAP-148 effectively reduces biofilm-embedded Staphylococcus aureus on a fracture-related implant mimic." Bone & Joint Research 14, no. 5 (2025): 485–94. https://doi.org/10.1302/2046-3758.145.bjr-2024-0341.r1.

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AimsFracture-related infections and the associated treatment failure burden our society and healthcare system significantly. As an alternative approach, we investigated the effect of non-contact induction heating (NCIH) against Staphylococcus aureus within mature biofilms. In addition, we assessed the ability of antibiotics, the antimicrobial peptide SAAP-148, and bacteriophage (phage) ISP to enhance the efficacy of NCIH, thereby allowing the use of lower temperatures during NCIH.MethodsClinical isolates of methicillin-resistant and methicillin-sensitive S. aureus (methicillin-resistant S. aur

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Hermans, Michel H. "802 A retrospective study: rapid removal of biofilm and necrosis with a hygroscopic chemical debriding compound." Journal of Burn Care & Research 43, Supplement_1 (2022): S207. http://dx.doi.org/10.1093/jbcr/irac012.351.

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Abstract Introduction Removing necrosis and biofilm is an essential step in the treatment of all lesions. A new debriding compound (TDA) uses a hygroscopic mechanism to reach this goal: when in contact with biofilm and necrosis this causes desiccation, with subsequent dissolution of these compounds. Methods In a retrospective proof-of-principle study the results of a one-time application of TDA in 54 serious foot and leg lesions, mainly diabetic and venous ulcers, were analyzed. Results Outcomes were positive: at study end: 50 out of 54 lesions (92.5%) showed complete granulation and in 40 out

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Houngkamhang, Nongluck, Ploymanee Chaisawat, Waisaree Joksathit, et al. "Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment Method." Nanomaterials 12, no. 3 (2022): 557. http://dx.doi.org/10.3390/nano12030557.

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Biofilm-associated infections caused by an accumulation of micro-organisms and pathogens significantly impact the environment, health risks, and the global economy. Currently, a non-biocide-releasing superhydrophobic surface is a potential solution for antibacterial purposes. This research demonstrated a well-designed robust polydimethylsiloxane (PDMS) micro-structure and a flame treatment process with improved hydrophobicity and bacterial anti-adhesion properties. After the flame treatment at 700 ± 20 °C for 15 s, unique flower-petal re-entrant nano-structures were formed on pillars (PIL-F, w

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Zancopé, Bruna Raquel, Vanessa B. Dainezi, Marinês Nobre-dos-Santos, Sillas Duarte, Vanessa Pardi, and Ramiro M. Murata. "Effects of CO2laser irradiation on matrix-rich biofilm development formation–an in vitro study." PeerJ 4 (November 1, 2016): e2458. http://dx.doi.org/10.7717/peerj.2458.

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BackgroundA carbon dioxide (CO2) laser has been used to morphologically and chemically modify the dental enamel surface as well as to make it more resistant to demineralization. Despite a variety of experiments demonstrating the inhibitory effect of a CO2laser in reduce enamel demineralization, little is known about the effect of surface irradiated on bacterial growth. Thus, this in vitro study was preformed to evaluate the biofilm formation on enamel previously irradiated with a CO2laser (λ = 10.6 µM).MethodsFor this in vitro study, 96 specimens of bovine enamel were employed, which were divi

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Wolcott, Randy. "Biofilm and catheter-related bloodstream infections." British Journal of Nursing 30, no. 8 (2021): S4—S9. http://dx.doi.org/10.12968/bjon.2021.30.8.s4.

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Careful attention to detail and adherence to procedure guidelines when inserting and managing intravascular catheters has decreased the incidence of catheter-related bloodstream infections (CRBSIs). In order to limit these, health professionals must understand the underlying microbiology. Biofilms can explain the clinical findings most often seen with CRBSIs, yet they are poorly understood within medicine. Bacteria growing on solid surfaces such as a catheter are predominantly in biofilm phenotype, with a group of genes active that allow the bacteria to be tolerant to antiseptics and antibioti

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Lollobrigida, Marco, Simone Filardo, Rosa Sessa, et al. "Antibacterial Activity and Impact of Different Antiseptics on Biofilm-Contaminated Implant Surfaces." Applied Sciences 9, no. 24 (2019): 5467. http://dx.doi.org/10.3390/app9245467.

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Several antiseptic agents have been proposed for the treatment of peri-implantitis as a complementary therapeutic strategy in addition to mechanical devices. The aim of this study was to compare six different antiseptics, as well as alternative formulations of the same chemical agent, with respect to their decontamination efficacy and impact on chemical properties of the implant surface. Titanium disks with a micro-rough surface, previously contaminated with Porphyromonas gingivalis and Streptococcus mutans biofilms, were treated for 2 min with different antiseptics (liquid sodium hypochlorite

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Es-Souni, Mona, Martha Es-Souni, Hamzah Bakhti, et al. "A Bacteria and Cell Repellent Zwitterionic Polymer Coating on Titanium Base Substrates towards Smart Implant Devices." Polymers 13, no. 15 (2021): 2472. http://dx.doi.org/10.3390/polym13152472.

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Biofouling and biofilm formation on implant surfaces are serious issues that more than often lead to inflammatory reactions and the necessity of lengthy post-operation treatments or the removal of the implant, thus entailing a protracted healing process. This issue may be tackled with a biocompatible polymeric coating that at the same time prevents biofouling. In this work, oxygen plasma-activated silanized titanium substrates are coated with poly(sulfobetaine methacrylate), a zwitterionic antibiofouling polymer, using photopolymerization. The characterization of polymer films includes FT-IR,

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Namour, Melanie, Tim Verspecht, Marwan El Mobadder, et al. "Q-Switch Nd:YAG Laser-Assisted Elimination of Multi-Species Biofilm on Titanium Surfaces." Materials 13, no. 7 (2020): 1573. http://dx.doi.org/10.3390/ma13071573.

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(1) Background: The relatively high prevalence of peri-implantitis (PI) and the lack of a standard method for decontamination of the dental implant surface have pushed us to conduct further research in the field. Bacterial biofilms were found to play a primordial role in the etiology of PI. Therefore, the aim is to evaluate the efficacy of a laser-assisted elimination of biofilm protocol in the removal of a multi-species biofilm on titanium surfaces. (2) Methods: In total, 52 titanium discs (grade 4) were used. The study group consisted of 13 titanium disks contaminated with multi-species biof

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Muturi, Peter, Peter Wachira, Maina Wagacha, et al. "Fecal Shedding, Antimicrobial Resistance and In Vitro Biofilm formation on Simulated Gallstones by Salmonella Typhi Isolated from Typhoid Cases and Asymptomatic Carriers in Nairobi, Kenya." International Journal of Clinical Microbiology 1, no. 2 (2024): 23–36. http://dx.doi.org/10.14302/issn.2690-4721.ijcm-24-5030.

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Typhoid fever, caused by the human restricted pathogen Salmonella Typhi, remains a major global public health concern. Even after successful treatment, approximately 3-5% of patients with typhoid fail to clear the bacteria within one year and become chronic carriers. Most typhoid carriers have gallstones in their gallbladder, and biofilm formation on gallstones is highly correlated with chronic carriage. This study’s goal was to identify asymptomatic typhoid carriers in an endemic setting in Kenya, and to compare acute versus chronic isolates. A cohort of typhoid fever patients identified thro

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Waqas, Sharjeel, Noorfidza Yub Harun, Nonni Soraya Sambudi, et al. "Effect of Operating Parameters on the Performance of Integrated Fixed-Film Activated Sludge for Wastewater Treatment." Membranes 13, no. 8 (2023): 704. http://dx.doi.org/10.3390/membranes13080704.

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Integrated fixed-film activated sludge (IFAS) is a hybrid wastewater treatment process that combines suspended and attached growth. The current review provides an overview of the effect of operating parameters on the performance of IFAS and their implications for wastewater treatment. The operating parameters examined include hydraulic retention time (HRT), solids retention time (SRT), dissolved oxygen (DO) levels, temperature, nutrient loading rates, and aeration. Proper control and optimization of these parameters significantly enhance the treatment efficiency and pollutant removal. Longer H

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Tvilum, Anne, Mikkel Illemann Johansen, Lærke Glud, et al. "ANTIBODY-DRUG CONJUGATE THERAPY AGAINST S. AUREUS IMPLANT-ASSOCIATED INFECTION IN A MURINE MODEL." Orthopaedic Proceedings 105-B, SUPP_17 (2023): 24. http://dx.doi.org/10.1302/1358-992x.2023.17.024.

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AimInfections represent a serious threat to the successful utilization of implants in modern medicine. Implant-associated infections are difficult to treat, because they involve biofilms that protect bacteria from the immune system and harbour antibiotic-tolerant persister cells.In this work, we developed an antibody-drug conjugate (ADC) containing the anti-neoplastic drug mitomycin C (MMC) as a novel treatment paradigm for implant-associated infections. MMC was chosen as it is a potent antimicrobial against biofilms and its synthesis into an ADC was chosen to alleviate toxicity. Following dev

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Filipov, E., L. Angelova, D. Aceti, et al. "Altering the surface morphology and wettability of chitosan/graphene coatings by femtosecond and nanosecond laser processing." Journal of Physics: Conference Series 2240, no. 1 (2022): 012041. http://dx.doi.org/10.1088/1742-6596/2240/1/012041.

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Abstract A major drawback of the currently used orthopedic implants is the formation of a bacterial biofilm on their surface after implantation. A potential strategy for overcoming this problem is developing micro- and nano-structured motifs on the implant’s surface to prevent bacterial attachment. Additionally, the use of materials with inherent antimicrobial properties could further stall the aggregation of bacteria. This paper demonstrates an approach to obtaining a modified surface topography on chitosan-graphene 2D films via femtosecond and nanosecond laser treatment. Atomic force microsc

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Sfameni, Silvia, Giulia Rando, Alessia Marchetta, et al. "Development of Eco-Friendly Hydrophobic and Fouling-Release Coatings for Blue-Growth Environmental Applications: Synthesis, Mechanical Characterization and Biological Activity." Gels 8, no. 9 (2022): 528. http://dx.doi.org/10.3390/gels8090528.

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The need to ensure adequate antifouling protection of the hull in the naval sector led to the development of real painting cycles, which involve the spreading of three layers of polymeric material on the hull surface exposed to the marine environment, specifically defined as primer, tie coat and final topcoat. It is already well known that coatings based on suitable silanes provide an efficient and non-toxic approach for the hydrophobic and antifouling/fouling release treatment of surfaces. In the present work, functional hydrophobic hybrid silica-based coatings (topcoats) were developed by us

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Ozhohan, P. Z., and Z. R. Ozhogan. "ANALYSIS OF BIOCOMPATIBILITY OF MATERIALS FOR NON-REMOVABLE AESTHETIC PROSTHETIC STRUCTURES." Ukrainian Dental Almanac, no. 4 (December 25, 2024): 60–64. https://doi.org/10.31718/2409-0255.4.2024.10.

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Background. Currently, zirconium dioxide and metal-free ceramics are widely used in orthopedic dentistry. Studying the surfaces of these materials at the microand nanoscale is becoming increasingly important in dental research, allowing us to uncover the complex interactions between dental materials and oral tissues. Atomic force microscopy allows us to study the influence of microand nanoscale features of the surface of materials on bacterial adhesion, biofilm formation, and osseointegration processes. Contact angle analysis characterizes surface energy and hydrophobicity, which are the basis

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Medaglia, Serena, Ángela Morellá-Aucejo, María Ruiz-Rico, et al. "Antimicrobial Surfaces: Stainless Steel Functionalized with the Essential Oil Component Vanillin." International Journal of Molecular Sciences 25, no. 22 (2024): 12146. http://dx.doi.org/10.3390/ijms252212146.

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Pathogenic microorganisms can adhere to solid surfaces, leading to the formation of biofilms, thus building a physical barrier hindering the penetration and diffusion of antimicrobial compounds. In this context, the use of natural antimicrobial compounds, such as essential oil components, as substitutes for common synthetic antimicrobials in the fight to prevent antimicrobial resistance is explored. As stainless steel is one of the most widely used surfaces in different industries, we have developed an innovative antimicrobial treatment for stainless steel surfaces based on a multi-step functi

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Ribeiro, Larissa Mayra Silva, Luziane Aparecida Costa da Rosa Simões, Melina Espanhol-Soares, et al. "Surface Modification of Ti–30Ta Alloy by Deposition of P(VDF-TrFE)/BaTiO3 Coating for Biomedical Applications." Metals 12, no. 9 (2022): 1409. http://dx.doi.org/10.3390/met12091409.

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This study aims to promote an adequate methodology for coating an experimental Ti-30Ta alloy with P(VDF-TrFE)/BaTiO3. The combination of a copolymer with a ceramic has not been used until now. Ti-30Ta is an excellent choice to replace current alloys in the global market. The composite deposition on the Ti-30Ta substrate was performed by a spray coating process and at low temperature using two different surface modifications: surface acidic etching and surface polishing. Characterization was divided into four areas: (I) the substrate surface treatments used and their influences on the adhesion

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Amy, G., J. F. Debroux, R. Arnold, and L. G. Wilson. "Emploi de la pré-ozonation pour augmenter la biodégradabilité d'un effluent secondaire dans un système de traitement par inflitration dans le sol." Revue des sciences de l'eau 9, no. 3 (2005): 365–80. http://dx.doi.org/10.7202/705258ar.

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La réutilisation des eaux usées est reconnue comme une technique importante dans les régions arides et /ou grandes consommatrices d'eau. L'une des méthodes actuellement très employée consiste à recharger la nappe phréatique avec des effluents secondaires via des bassins d'infiltration. L'épuration biologique et / ou chimique à travers la zone non-saturée représente une caractéristique importante de cette technologie. Les procédés de ce type sont connus sous l'appellation de Soil Aquifer Treatment (SAT) ou géofiltration. Dans ce travail, le procédé a été étudié comme méthode de réhabilitation d

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Trivedi, Mahendra Kumar, Shrikant Patil, and Rama Mohan Tallapragada. "Effect of Biofield Treatment on the Physical and Thermal Characteristics of Aluminium Powders." Industrial Engineering & Management 4, no. 1 (2015). https://doi.org/10.4172/2169-0316.1000151.

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Aluminium powders are used in a wide range from propelling rockets to improving personal hygiene. More popular industrial applications include manufacture of silver metallic pigments, paints, inks, plastics, packaging, textiles and aerospace industry. As thick film pastes used in the manufacture of silicon solar cells, and as reducing agent and sources of heat, used in alumina thermic and exothermic applications. In the present investigation, Aluminium powders were exposed to non-contact Biofield treatment. Both the exposed and unexposed powders were later characterized by various techniques.

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Mahendra, Trivedi, Branton Alice, Trivedi Dahryn, and Nayak Gopal. "Effect of Biofield Treatment on the Physical and Thermal Characteristics of Aluminium Powders." http://www.omicsgroup.org/, February 26, 2015. https://doi.org/10.5281/zenodo.813791.

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In the present investigation, Aluminium powders were exposed to non-contact Biofield treatment. Both the exposed and unexposed powders were later characterized by various techniques. The average particle size, after a slight initial decrease was found to increase after 80 days of treatment substantially, which suggested the operation of competing mechanisms fracture and sintering (micro welding). The BET surface area monotonically decreased which was consistent with increase in particle size. SEM photographs showed that samples exposed to Biofield after 38 days showed growth in particle size a

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Gopal, Nayak. "Effect of a Biofield Treatment on Plant Growth and Adaptation." www.ommegaonline.com, April 27, 2015. https://doi.org/10.5281/zenodo.813815.

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Quantum mechanics was developed when human energies of consciousness were found to influence observations at the scale of elementary particles, here referred as non-contact biofield treatment or biofield energies . Quantum mechanics has also proved efficacious in biological processes. The present experiments found an enhanced and significant impact of the biofield treatment on adaptive micropropagation response and callus induction of two plant species, Withania somnifera and Amaranthus dubius. The enhancement was perhaps due to greater focus on adaptation rather than specific mechanisms, show

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Hammerschlag, R., B. Marx, M. Yamamoto, and M. Aickin. "P02.42. Non-touch biofield therapy: a systematic review of human randomized controlled trials reporting use of only non-physical contact treatment." BMC Complementary and Alternative Medicine 12, S1 (2012). http://dx.doi.org/10.1186/1472-6882-12-s1-p98.

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Zhuo, Liyun, Xinyi Zhang, Jiaxin Jiang, et al. "Electrospinning preparation and characterization testing analysis of nanofiber biofilms." AIP Advances 14, no. 2 (2024). http://dx.doi.org/10.1063/5.0190239.

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In order to obtain a fibrous biofilm carrier material with a good water purification effect, the biofilm carrier of PAN and PAN-PEO (mass ratio 9:1) was prepared by the electrospinning process, and the performance differences between the fabric biofilm carriers of PAN, PAN-PEO (mass ratio 9:1), and blank non-woven fabric, including the structure of biofilm carriers (surface morphology, specific surface area, and porosity), surface wettability (water contact angle and water absorbance) and membrane hanging ratio, were tested through various characterization methods. The experimental results sho

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Sahin, Zeynep, Nazire Esra Ozer, and Abdulhamit Calı. "Biofilm inhibition of denture cleaning tablets and carvacrol on denture bases produced with different techniques." Clinical Oral Investigations 28, no. 7 (2024). http://dx.doi.org/10.1007/s00784-024-05810-3.

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Abstract Objectives This study compares the biofilm inhibition effects of denture cleaning tablets, carvacrol, and their combined use against Candida albicans on denture bases produced with different techniques. Additionally, the surface roughness and contact angles of these denture bases were evaluated. Materials and methods Test samples were prepared from four different denture base materials (cold-polymerized, heat-polymerized, CAD/CAM milling, and 3D-printed). The surface roughness and contact angles of the test samples were measured using a profilometer and goniometer, respectively. For t

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Biswas, Keya, Farzana Sayed Sraboni, Mahmudul Hasan, et al. "Effect of Simple Sugars on the Growth and Biofilm Formation of Staphylococcus Gallinarum Strain wx190801 on Common Food Contact Surfaces." ChemistrySelect 10, no. 18 (2025). https://doi.org/10.1002/slct.202406088.

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AbstractBiofilm formation by Staphylococcus gallinarum on food contact surfaces poses significant risks to food safety and human health due to the enhanced resistance of biofilms to antimicrobial treatments. This study investigates the effects of four simple sugars—glucose, galactose, mannose, and fructose—on the growth and biofilm formation of S. gallinarum strain wx190801, isolated from canned chickpeas. The impact of each sugar on bacterial growth and biofilm formation was assessed on stainless steel, aluminum, glass, and plastic surfaces. Fructose exhibited the strongest antibiofilm activi

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Nasrollahian, Sina, Hassan Pourmoshtagh, Sahar Sabour, Nahal Hadi, Taher Azimi, and Saeed Soleiman-Meigooni. "Biofilm Formation in Mycobacterial Genus; Mechanism of Biofilm Formation and Anti-Mycobacterial Biofilm Agents." Current Pharmaceutical Biotechnology 25 (March 11, 2024). http://dx.doi.org/10.2174/0113892010277107240227054933.

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Abstract: Mycobacterium tuberculosis, Mycobacterium leprae, and non-tuberculous mycobacteria (NTM) are among the most significant human pathogens within the Mycobacterium genus. These pathogens can infect people who come into contact with biomaterials or have chronic illnesses. A characteristic pathogenic trait of mycobacteria is the development of biofilms, which involves several molecules, such as the GroEL1 chaperone, glycopeptidolipids, and shorter-chain mycolic acids. Bacterial behavior is influenced by nutrients, ions, and carbon sources, which also play a regulatory role in biofilm deve

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Lou, Yang, and Edmund F. Palermo. "Dynamic Antimicrobial Poly(disulfide) Coatings Exfoliate Biofilms On‐Demand via Triggered Depolymerization." Advanced Healthcare Materials, January 30, 2024. http://dx.doi.org/10.1002/adhm.202303359.

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AbstractBacterial biofilms are notoriously problematic in applications ranging from biomedical implants to fouling of ship hulls. Cationic, amphiphilic antibacterial surface coatings can delay the onset of biofilm formation by killing microbes on‐contact, but they lose effectiveness over time due to non‐specific binding of biomass and subsequent biofilm formation atop the fouled surface. Harsh physical or mechanical treatment methods are then required to forcibly expel the accumulated biomass and regenerate a clean surface. Here, we develop a simple, dynamically reversible method of polymer su

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Zhang, Kaixi, Yu Du, Zhangyong Si, et al. "Enantiomeric glycosylated cationic block co-beta-peptides eradicate Staphylococcus aureus biofilms and antibiotic-tolerant persisters." Nature Communications 10, no. 1 (2019). http://dx.doi.org/10.1038/s41467-019-12702-8.

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Abstract The treatment of bacterial infections is hindered by the presence of biofilms and metabolically inactive persisters. Here, we report the synthesis of an enantiomeric block co-beta-peptide, poly(amido-D-glucose)-block-poly(beta-L-lysine), with high yield and purity by one-shot one-pot anionic-ring opening (co)polymerization. The co-beta-peptide is bactericidal against methicillin-resistant Staphylococcus aureus (MRSA), including replicating, biofilm and persister bacterial cells, and also disperses biofilm biomass. It is active towards community-acquired and hospital-associated MRSA st

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Ringkai, Hawa, Khairul Fikri Tamrin, Ngieng Ngui Sing, Abdullah Yassin, Awang Ahmad Sallehin Awang Husaini, and Jamil Musel. "Underwater fiber laser removal of synthetically cultured Caulobacter crescentus biofilms on aluminium using response surface methodology." Scientific Reports 15, no. 1 (2025). https://doi.org/10.1038/s41598-025-11455-3.

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Abstract Biofouling can be considered the accumulation of microorganisms and other organisms on submerged surfaces. It poses operational and economic challenges across marine, industrial, and freshwater systems. Despite its relevance, freshwater biofilm removal remains understudied compared to marine biofouling. This study evaluates the use of fiber laser treatment to remove synthetically cultured Caulobacter crescentus biofilms formed on aluminium substrates submerged in a nutrient-rich microbiological growth medium. A response surface methodology was applied to optimize three laser processin

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Gusnaniar, Ferdi Hizal, Chang-Hwan Choi, et al. "Transmission of Monospecies and Dual-Species Biofilms from Smooth to Nanopillared Surfaces." Applied and Environmental Microbiology 84, no. 15 (2018). http://dx.doi.org/10.1128/aem.01035-18.

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ABSTRACTThe transmission of bacteria in biofilms from donor to receiver surfaces precedes the formation of biofilms in many applications. Biofilm transmission is different from bacterial adhesion, because it involves biofilm compression in between two surfaces, followed by a separation force leading to the detachment of the biofilm from the donor surface and subsequent adhesion to the receiver surface. Therewith, the transmission depends on a balance between donor and receiver surface properties and the cohesiveness of the biofilm itself. Here, we compare bacterial transmission from biofilms o

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"Biofouling and Mitigation Methods: A Review." Biointerface Research in Applied Chemistry 13, no. 2 (2022): 185. http://dx.doi.org/10.33263/briac132.185.

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Biofouling accumulates living organisms on surfaces in contact with the water and causes significant economic, structural, and microbial problems on ship hulls, piers, oil rigs, power plants, pipework, water treatment facilities as well as medical devices. In order to mitigate problems associated with biofouling, many toxic and non-toxic antifouling methods have been developed. Unfortunately, most of the methods used to control biofouling are either harmful to the environment or, in some cases, considered effective. Thus, antifouling research's main objective is to develop green, sustainable,

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Alves Martins, Nadiene, Fábio Fernandes Bruno Filho, Lucas Zaiden, et al. "Chronic Superficial Infection in a Dog caused by Multidrug-Resistant Pseudomonas aeruginosa." Acta Scientiae Veterinariae 51 (July 3, 2023). https://doi.org/10.22456/1679-9216.125086.

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Background: Pseudomonas aeruginosa is a gram-negative aerobic bacterium and non-glucose fermenting, that usuallycauses opportunistic infections in animals, including humans. It is rarely involved in primary disease. The antibioticresistant bacterial strains are mainly developed due to the inappropriate use of antibiotics, however treating P. aeruginosa infections can be difficult owing to their natural resistance to antibiotics. Furthermorer resistant microorganisms such as P. aeruginosa grow by developing biofilms. Inaccurate diagnoses and absence of adequate microbiological tests can cause d

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Nandanwar, Nishant, Geoffery Gu, Joy E. Gibson, and Michael N. Neely. "Polymicrobial interactions influence Mycobacterium abscessus co-existence and biofilm forming capabilities." Frontiers in Microbiology 15 (November 25, 2024). http://dx.doi.org/10.3389/fmicb.2024.1484510.

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The lungs of patients with cystic fibrosis (CF) are vulnerable to persistent polymicrobial colonization by bacterial pathogens including Pseudomonas aeruginosa, Staphylococcus aureus, and the non-tuberculous mycobacterium (NTM) Mycobacterium abscessus. The polymicrobial milieu within the CF lung impacts individual species fitness, influences biofilm-forming capabilities, pathogenicity, production of virulence factors and even antimicrobial responses, all potentially compromising therapeutic success. Interaction studies among these CF pathogens are very limited, especially studies on the influe

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Pick, Frances C., Katherine E. Fish, Stewart Husband, and Joby B. Boxall. "Non-invasive Biofouling Monitoring to Assess Drinking Water Distribution System Performance." Frontiers in Microbiology 12 (October 28, 2021). http://dx.doi.org/10.3389/fmicb.2021.730344.

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Biofilms are endemic in drinking water distribution systems (DWDS), forming on all water and infrastructure interfaces. They can pose risks to water quality and hence consumers. Our understanding of these biofilms is limited, in a large part due to difficulties in sampling them without unacceptable disruption. A novel, non-destructive and non-disruptive biofilm monitoring device (BMD), which includes use of flow cytometry analysis, was developed to assess biofouling rates. Laboratory based experiments established optimal configurations and verified reliable cell enumeration. Deployment at thre

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Zhang, Xi, Wanxin Li, Genying Wei, et al. "A rapid-crosslinking antimicrobial hydrogel with enhanced antibacterial capabilities for improving wound healing." Frontiers in Physiology 14 (May 30, 2023). http://dx.doi.org/10.3389/fphys.2023.1206211.

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One of the main reasons impeding wound healing is wound infection caused by bacterial colonization with a continuous stage of inflammation. Traditional wound treatments like gauze are being replaced by tissue adhesives with strong wet tissue adhesion and biocompatibility. Herein, a fast-crosslinking hydrogel is developed to achieve both strong antimicrobial properties and excellent biocompatibility. In this study, a simple and non-toxic composite hydrogel was prepared by the Schiff base reaction between the aldehyde group of 2,3,4-trihydroxybenzaldehyde (TBA) and the amino group of ε-Poly-L-ly

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Varin-Simon, Jennifer, Evan F. Haney, Marius Colin, et al. "D-enantiomeric antibiofilm peptides effective against anaerobic Cutibacterium acnes biofilm." Microbiology Spectrum, March 25, 2025. https://doi.org/10.1128/spectrum.02523-24.

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ABSTRACT The emergence of antibiotic resistance, biofilm formation, and internalization by host cells contribute to a high risk of chronic infections, highlighting the necessity to develop novel therapeutic strategies. Identification of natural host defense peptides (HDPs) with promising antimicrobial and antibiofilm activities led to the development of synthetic peptides with broad-spectrum efficacy. However, few studies have examined their effect on anaerobic bacterial species. This study aimed to test the effect of synthetic HDPs on Cutibacterium acnes , an anaerobe species involved in 10%

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Burgener, Elizabeth B., Pamela Cai, Michael J. Kratochvil, et al. "The lysogenic filamentous Pseudomonas bacteriophage phage Pf slows mucociliary transport." PNAS Nexus, September 9, 2024. http://dx.doi.org/10.1093/pnasnexus/pgae390.

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Abstract Pseudomonas aeruginosa is a major pulmonary pathogen causing chronic pulmonary infections in people with Cystic Fibrosis (CF). The P. aeruginosa filamentous and lysogenic bacteriophage, Pf phage, is abundant in the airways of many people with CF and has been associated with poor outcomes in a cross-sectional cohort study. Previous studies have identified roles for Pf phage in biofilm formation, specifically forming higher-order birefringent, liquid crystals when in contact with other biopolymers in biofilms. Liquid crystalline biofilms are more adherent and viscous than those with out

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Figueiredo, José Edson Fontes, Gisele de Fátima Dias Diniz, Mikaely Sousa Marins, et al. "Bacillus velezensis CNPMS-22 as biocontrol agent of pathogenic fungi and plant growth promoter." Frontiers in Microbiology 16 (March 5, 2025). https://doi.org/10.3389/fmicb.2025.1522136.

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IntroductionBacillus velezensis is a ubiquitous bacterium with potent antifungal activity and a plant growth promoter. This study investigated the potential of B. velezensis CNPMS-22 as a biocontrol agent against phytopathogenic fungi under diverse experimental conditions and its potential as a plant growth promoter. Genome sequencing and analysis revealed putative genes involved in these traits.MethodsThis research performed in vitro experiments to evaluate the CNPMS-22 antagonistic activity against 10 phytopathogenic fungi using dual culture in plate (DCP) and inverted sealed plate assay (IS

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Gueguim, Cedric, Alain Ragon, Halle Marie Patrice, Francois Jerome Kaze Folefack, and Hortense Gonsu Kamga. "#4059 MICROBIOLOGICAL ANALYSIS OF HEMODIALYSIS WATER AT THE DOUALA GENERAL HOSPITAL, CAMEROON." Nephrology Dialysis Transplantation 38, Supplement_1 (2023). http://dx.doi.org/10.1093/ndt/gfad063d_4059.

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Abstract Background and Aims Rigorous control of the microbiological quality of water in hemodialysis services is important because the immune system of patients with chronic renal failure is weakened. The aims of this study was to determine the microbiological quality of water for hemodialysis in Nephrology Unit of the Douala Général Hospital in order to improve the disinfection strategy. Method Twelve water samples were collected each month at different sites of the hemodialysis circuits A (inlet of filters), B (Outlet of filters / inlet of Reverse Osmosis (RO) device) and C (outlet of the R

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