antibacterial modification of textiles using nanotechnology

... Trang 1MODIFICATION OF CHITOSAN FOR SIMULTANEOUS ANTIOXIDANT AND ANTIBACTERIAL FUNCTIONS CHEN FEI NATIONAL UNIVERSITY OF SINGAPORE 2009 Trang 2MODIFICATION OF CHITOSAN FOR SIMULTANEOUS ... National University of Singapore Trang 4ACKNOWLEDGEMENT i SUMMARY vi NOMENCLATURE viii 2.3.2 Antibacterial activity of essential oils 16 2.3.3 Mode of antibacterial action of essential oils 17 ... Scheme 2-3 Trang 292.3.2 Antibacterial activity of essential oils The antibacterial activity of EOs has been tested in vitro for many years The antibacterial efficacies of EOs are commonly characterized...

Ngày tải lên: 16/10/2015, 15:35

... The weak antibacterial potential of water extracts is in good agreement with lit-erature reports that hydrophobicity often act as domain driver of antibacterial activities [30, 31] Antibacterial ... Determination of reducing power The reducing power of various parts of C papaya was deter-mined using procedure described by Yen & Duh with slight modification [35] Different extracts of 2–10 mg ... positive control Antibacterial activity Antibacterial activity of different C papaya extracts were measured using disc diffusion method as described ear-lier with slight modification [38] Antibacterial...

Ngày tải lên: 29/05/2020, 14:07

... mechanical properties of the untreated CF. Antibacterial Activity of CF-g-PHMG The zones of inhibition were first conducted to verify the contacting antibacterial activities of modi fied CF.58 Surprisingly, ... concentration of the standard sodium solution, m (g) is the weight of OCF, and M (g/mol) is the molecular weight of the cellulose unit (162 g/mol) Thefinal value of oxidation degree is an average of three ... long-lasting antibacterial activity of CF-g-PHMG is that the covalently bonded PHMG chains are reasonably stable Although a trace amount of PHMG was lost because of the slow degradation of cellulose...

Ngày tải lên: 19/02/2021, 21:24

... walls of office buildings and the floors of residential units for temperature control, while only distributing the volume of air required for ventilation This decoupled system allows for 100% of ... (0.3048 m) off of the rear wall as shown in Figure 4, which gives an area of 2.25 ft2 (0.2090 m2) for each vent Case has a volume of 1,368 ft3 (38.74 m3) By meeting the guidelines of four air ... The outlet vent area of Case is double the size of the outlet vent area of Case Each outlet vent is of the size, 9" × 36" (0.2286 m × 0.9144 m) spaced 12", giving an area of 4.5 ft2 (0.418 m2))...

Ngày tải lên: 05/09/2013, 15:28

... much of the color and flavor of fruits, vegetables,nuts, and seeds, they form an integral part of the human diet (Parr and Bolwell,2000) Rich dietary sources of flavonoids include soybean (isoflavones); ... different class of flavonoids Flavanone 3-hydroxylase (F3H) catalyzes the stereospecific 3β-hydroxylation of flavanones to dihydroflavonols For the biosyn-thesis of anthocyanins, dihydroflavonol reductase ... increasing levels of a rate-limiting biosynthetic enzyme, inhibition com-of the activity com-of a gene that competes for a limited substrate supply, and up- ordown-regulation of the pathway using regulatory...

Ngày tải lên: 25/10/2013, 05:20

... vitro antibacterial assays Antibacterial assays were performed in sterile 96-well plates (Nunc F96 microtiter plates) with a final volume of 100 lL Table 2 In vitro antibacterial activity of some ... of a suspensionof a mid-logarithmic phase bacterial culture at an initial 600 nm UV absorbance of 0.001 in media required for good growth of the various bacterial strains was added to 10 lL of ... ([h]MR) is expressed in degreesÆcm2Ædmol)1by using mean residue masses of 110 R E S U L T S Identification of crucial residues for the antibacterial activity of pyrrhocoricin An Ala-scan was performed...

Ngày tải lên: 08/03/2014, 10:20

... and suggestions were of inestimable value for our study using GC-A knockout mice, to Professor Misono of the University of Nevada School of Medicine, and to the reviewers of the FEBS Journal, ... regulation of blood pressure Overall, these results show the significance of the endogenous natriuretic peptide system in the mainte-nance of normal blood pressure Regulation of blood volume Infusion of ... cloning of the first mammalian GC (thus called GC-A) from rats and humans [17] Expression of the cloned enzyme confirmed that GC-A is an ANP receptor Soon after the discovery of GC-A, cloning of a...

Ngày tải lên: 14/03/2014, 23:20

... solvent Comparison of the secondary structure of PKCf with those of other protein kinases of the AGC family (Table 2) offers other interesting data The secondary structure of PKCi, as deduced ... con-sequence of the H–D exchange that takes place when using D2O buffer, a range of that was quantified using two different procedures The first implied calculating the ratio between the areas of the ... 1C Figure 3 shows a plot of the half-height width of the amide I¢ band versus temperature, which is one way of Table 1 FTIR parameters of the amide I band components of cat-f (20 mgÆmL)1) in...

Ngày tải lên: 16/03/2014, 13:20

... oxidation of aluminum by means of such a self-organization method, yielding highly ordered arrays of nanoholes several hundreds down to several tens of nanometers in size This paper is an overview of ... well-ordered array of CNT is shown in Trang 6Figure 6 SEM image of array of carbon nanotube fabricated inporous alumina template (Li et al., 1999). Figure 6 Using Co catalysis, pyrolysis of C2H2was car-ried ... PL intensity of the porous alumina film fabricated using oxalic acid and annealed above 400◦C is stronger than that of porous silicon The PL intensity of porous alumina fabricated using oxalic...

Ngày tải lên: 19/03/2014, 16:48

... PUBLICATIONS 430TECHNICAL RESEARCH CENTRE OF FINLAND Feasibility of continuous main fermentation of beer using Trang 4ISBN 951–38–5840–5 (soft back ed.)ISSN 1235–0621 (soft back ed.) ISBN 951–38–5841–3 ... Vessel (HUV) offers some form ofmicrobial control providing an environment of low pH (< 4.5) and an alcoholcontent of >2.0% w/v The HUV comprises approximately 6% of the totalvolume of the system ... one or more batches of wort. Which of these batches are pitched and aerated are particular practices of abrewery This is a description of all malt brewing, but other sources offermentable sugars...

Ngày tải lên: 24/03/2014, 04:20

... applications of radiation in nanotechnology Proceedings of a consultants meeting held in Bologna, Italy, 22–25 March 2004 Trang 2Emerging applications of radiation in nanotechnology Proceedings of a ... IAEA, as to the legal status of such countries or territories, of their authorities and institutions or of the delimitation of their boundaries The mention of names of specific companies or products ... addition of reactants at any step of the working cycle, and the accumulation of by–products resulting from the repeated addition of matter can compromise the operation of the device On the basis of...

Ngày tải lên: 28/05/2014, 15:03

... suffice to deal with the next generations of nanotechnology.The paper begins with an examination of the future of nanotechnology It then analyzes the capacity of current oversight policies and authorities ... next generation of nanotechnology specifically nAnOTeCHnOLOGY ReSeARCH AnD DeVeLOPMenT The major attempts to analyze the future of nanotechnology have tried to categorize the types of research being ... Fellow of the American Association for the Advancement of Science for his contributions to the use of science and analysis in environmental policy Davies is the author of The Politics of Pollution,...

Ngày tải lên: 28/05/2014, 15:11

... partial fulfillment of the requirements for the degree of Master of Science in Industrial and Systems Engineering in the Graduate School of Binghamton University State University of New York 2010 ... partial fulfillment of the requirements for the degree of Master of Science in Industrial and Systems Engineering in the Graduate School of Binghamton University State University of New York 2010 ... failure One of the prime reasons behind industries failure, loss of market or loss of revenue is the misbalance created between right products and right quantity of products Most of the time...

Ngày tải lên: 01/06/2014, 13:59

... 2 trans-lation DOFs (degrees of freedom) for elbow and forearm motion and repetitive massed practice of reaching toward an end point using impedance control [15] An evaluation of this therapeutic ... the degree of motor return and the amount of function gained [39] and (ii) client satisfaction using a 10-point Likert scale (LS), measuring the client’s perception of their level of enjoy-ment ... types of therapy (passive, active assisted, active restricted, and active) The 5-DOF industrial robot used in the system is capable of moving the patient’s limb through a variety of motion profiles...

Ngày tải lên: 19/06/2014, 08:20

... identified using the ordinary GC-MS technique to reveal the presence of 19 compounds dominated Trang 3by dioctyl phthalate Moreover, the antibacterial activity of the crude oil has been carried out using ... biological effect of the essential oils of L resedifolia There no reports on the essential oils of the species of the genus launaea except that reported by Cheriti et al [6] In continuation of our phytochemical ... oils may offer a great potential and hope Several studies have reported the efficacy of antibacterials obtained from the essential oils of various plant species [13–15] In this study, antibacterial...

Ngày tải lên: 20/06/2014, 20:20

... with analysis of the transference and of scenarios of old betrayals The crisis intervention of the Cape Cod Model aims for quick resolution by offering immediate, rudimentary proof that trustworthiness ... experience of modification of the putative mechanism Remarkably, the efficacy for reduction of behavioral cri-ses cited in the preceding section is similar among the different schools of psychotherapy ... phenomenology of their crises is evident Guilt, shame, loss of faith in the benevolence of others, hope-lessness, mistrust and avoidance of primary relationships are personality attributes of persons...

Ngày tải lên: 08/08/2014, 23:21

... statistics, the software package KaleidaGraph 3.5 (Synergy Software, Reading, USA) was used Means and standard deviations were calculated for each of the data points; sta-tistical comparison of the survival ... (figure 4) Combination of estradiol incubation and irradiation no of cells plat = eed at a given dose control no of cells plated control no. × Trang 4Immuncytological staining of ER-α and -β in EFO-21 ... Western-Blot analysis of p21 and actin in LNCaP after 24 h of hormonal incubation, irradiation with 0.5 Gy and 4 Gy Figure 6 Western-Blot analysis of p21 and actin in LNCaP after 24 h of hormonal incubation,...

Ngày tải lên: 09/08/2014, 09:22

... modules that include genes of related function [10] We used MEM to build a coexpression network of the mouse genome, using a collection of 89 datasets (Additional file 1) of the Affymetrix U74Av2 ... main limitation of the tool is the lack of across-platform similarity search, that is due to the complexity of mappings between probesets of different plat-forms, and comparability of normalizations ... in the coexpression of units of multiple genes such as protein complexes Therefore, pro-viding methods that allow comparison of groups of genes would be a natural development of MEM Methods Rank...

Ngày tải lên: 09/08/2014, 20:21

... by comparing the “goodness - of - fit” (GOF) indices of the various models We used the maxi-mum likelihood method of estimation (MLE) There are three broad types of GOF measures Hooper et al [54] ... structures of theoriginal version of the BDI, Shafer [1] found that the average number of factors extracted was four (range 2-7) and average range of variance explained was 46% About 30% of studies ... use of symptom-level data has the potential to expose greater variation in the data than disorder-level variables [2] The objectives of the study were: (i) using the responses of a sample of Arab...

Ngày tải lên: 11/08/2014, 16:22

... by using black market supplies of an illicit drug As with the opiates, evaluations of the therapeutic poten-tial of cannabis occur in the context of a vigorous political debate on the use of ... method of use (41% vs 26% of younger users), while younger users preferred the use of waterpipes (43% vs 13% of older users) When asked to comment on the good and bad points of different methods of ... 2003 a survey of 48 members of a medical canna-bis information service [14] This paper presents the results of a study of 128 users, which aimed to learn more about their patterns of use, experiences...

Ngày tải lên: 11/08/2014, 20:20