keyword
MENU ▼
Read by QxMD icon Read
search

CMC

keyword
https://www.readbyqxmd.com/read/28440819/amphiphilic-carbon-dots-as-versatile-vectors-for-nucleic-acid-and-drug-delivery
#1
Hai-Jiao Wang, Xi He, Tian-Ying Luo, Ji Zhang, Yan-Hong Liu, Xiao-Qi Yu
Carbon dot (CD)-based multifunctional delivery systems have shown great potential in both drug/gene delivery and bio-imaging. In this work, we present a strategy to simply construct amphiphilic CDs (ACDs) by conjugating hydrophobic alkyl epoxide to the surface amino groups of PEI 600-derived CDs. ACDs could well dissolve in water or organic solvents and emit bright fluorescence both in solutions and cells. (1)HNMR also suggested that ACDs may form micelle-like structures in water, and their CMC could be determined...
April 25, 2017: Nanoscale
https://www.readbyqxmd.com/read/28440703/zeta-potential-changing-nanoparticles-conjugated-with-cell-penetrating-peptides-for-enhanced-transfection-efficiency
#2
Wongsakorn Suchaoin, Arshad Mahmood, Kesinee Netsomboon, Andreas Bernkop-Schnürch
AIM: The aim of this study was to develop zeta-potential-changing nanoparticles (NPs) combining cell-penetrating peptides for gene delivery. METHODS & MATERIALS: NPs were formed using phosphorylated carboxymethyl cellulose-glucosamine 6-phosphate (CMC-G6P) and polyethylene imine-polyarginine conjugates. Phosphate release was evaluated using intestinal alkaline phosphatase and cell lines. Transfection studies with plasmid DNA were then performed. RESULTS: The zeta potential of CMC-G6P/branched PEI NPs was -3 mV and switched to +4 mV after intestinal alkaline phosphatase cleavage...
April 25, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28434434/local-structural-damage-evaluation-of-a-c-c-sic-ceramic-matrix-composite
#3
Benedicta D Arhatari, Matthew Zonneveldt, John Thornton, Brian Abbey
Ceramic matrix composites (CMCs) are structural materials, which have useful properties that combine high strength at high temperatures with moderate toughness. Carbon fibers within a matrix of carbon and silicon carbide, called C/C-SiC, are a particular class of CMC noted for their high oxidation resistance. Here we use a combination of four-point bending and X-ray radiography, to study the mechanical failure of C/C-SiC CMCs. Correlating X-ray radiographic and load/displacement curve data reveals that the fiber bundles act to slow down crack propagation during four-point bending tests...
April 24, 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28433180/novel-carboxymethyl-cellulose-polyvinyl-alcohol-blend-films-stabilized-by-pickering-emulsion-incorporation-method
#4
Hadi Fasihi, Mohammad Fazilati, Mahdi Hashemi, Nooshin Noshirvani
The aim of this study was to investigate the possibility of increasing the antimicrobial and antioxidant properties of biodegradable active films stabilized via Pickering emulsions. The blend films were prepared from carboxymethyl cellulose (CMC) and polyvinyl alcohol (PVA), emulsified with oleic acid (OL) and incorporated with rosemary essential oil (REO). Formation of Pickering emulsion was confirmed by scanning electron microscopy (SEM), optical microscopy, mean droplet size and emulsion stability. Morphological, optical, physical, mechanical, thermal, antifungal and antioxidant properties of the films incorporated with different concentrations of REO (0...
July 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28433178/preparation-and-characterization-of-biodegradable-nanocomposites-derived-from-carboxymethyl-cellulose-and-hydroxyapatite
#5
K Azzaoui, E Mejdoubi, A Lamhamdi, S Jodeh, O Hamed, M Berrabah, S Jerdioui, R Salghi, N Akartasse, A Errich, Á Ríos, M Zougagh
Development of a cost-effective technology for extraction and quantification of carcinogenic and toxic organic materials which are widely used in the industry are critical to humans. Membrane technology received much attention and has already been widely used in this area. In this work, we offer a newly developed bio-based nanocomposite membrane for removal of bisphenol-A (BPA) from water. Three natural components hydroxyapatite (HAp), carboxymethyl cellulose and lysine as a diluent were used for making the bio-based membrane...
July 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28429928/a-dual-enzyme-hydrogen-peroxide-generation-machinery-in-hydrogels-supports-antimicrobial-wound-treatment
#6
Daniela Huber, Gregor Tegl, Anna Mensah, Bianca Beer, Martina Baumann, Nicole Borth, Christoph Sygmund, Roland Ludwig, Georg M Guebitz
The aging population and accompanying diseases like diabetes resulted in an increased occurrence of chronic wounds. Topical wound treatment with antimicrobial agents to inhibit bacterial invasion and promote wound healing is often associated with difficulties. Here, we investigated the potential of succinyl chitosan (SC)-carboxymethyl cellulose (CMC) hydrogels which constantly release clinically relevant levels of hydrogen peroxide (H2O2). CMC hydrogel matrix was in situ converted by limited hydrolysis by a cellulase into substrates accepted by cellobiose dehydrogenase (CDH) for continuous production of H2O2 (30 μM over 24 h)...
April 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28429308/chronic-candidiasis-in-children
#7
REVIEW
Laura Green, William K Dolen
PURPOSE OF REVIEW: Healthy children may develop candidal infections as the result of exposure to antibiotics or corticosteroids, but chronic candidiasis in children after the newborn period is unusual. Chronic mucocutaneous candidiasis (CMC) refers to a group of conditions characterized by recurrent or persistent infections with Candida species, particularly Candida albicans. CMC is a phenotype observed in a spectrum of immunologic disorders, some with endocrinologic and autoimmune features...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28428918/the-safety-of-the-thenar-portal-an-anatomical-study-of-the-thumb-carpometacarpal-arthroscopy
#8
Yong-Wei Pan, Leung-Kim Hung
Purpose To define the localization of the distal course of the motor branches of median nerve (MBMN) and its arborization and its quantitative relationships to the thenar portal of the carpometacarpal (CMC) joint in the hope of evaluating the safety of this portal. Method In 16 embalmed cadaveric upper extremities, the localization of the course of the MBMN and its arborization were defined. In 14 fresh-frozen cadaver upper extremities, the CMC arthroscopic portals, 1-U, 1-R, and a thenar portal, were established, after which the limbs were dissected...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28428688/modulation-of-angiogenesis-proliferative-response-and-apoptosis-by-%C3%AE-sitosterol-in-rat-model-of-renal-carcinogenesis
#9
Ramalingam Sharmila, Ganapathy Sindhu
As expanded understanding of molecular tumor characteristics, which drive renal cancer growth and progression gives a promising future for renal carcinoma therapy. The objective of the present study was designed to examine the effect of β-sitosterol on a rat model of experimental renal carcinogenesis. Renal carcinogenesis was induced in rats treated with N-diethylnitrosamine (DEN; 200 mg/kg bw single i.p., injection) and ferric nitrilotriacetate (Fe-NTA; 9 mg Fe/kg bw i.p., twice a week for 16 weeks). β-sitosterol pretreatment (20 mg/kg bw in 0...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28427287/downstream-protein-separation-by-surfactant-precipitation-a-review
#10
Fadzlie Wong Faizal Wong, Arbakariya B Ariff, David C Stuckey
In a conventional protein downstream processing (DSP) scheme, chromatography is the single most expensive step. Despite being highly effective, it often has a low process throughput due to its semibatch nature, sometimes with nonreproducible results and relatively complex process development. Hence, more work is required to develop alternative purification methods that are more cost-effective, but exhibiting nearly comparable performance. In recent years, surfactant precipitation has been heralded as a promising new method for primary protein recovery that meets these criteria and is a simple and cost-effective method that purifies and concentrates...
April 21, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28425711/influence-of-surfactants-on-sodium-chloride-crystallization-in-confinement
#11
Mohsin J Qazi, Rinse W Liefferink, Simon J Schlegel, Ellen H G Backus, Daniel Bonn, Noushine Shahidzadeh
We study the influence of different surfactants on NaCl crystallization during evaporation of aqueous salt solutions. We found that at concentrations of sodium chloride close to saturation, only the cationic surfactant CTAB and the nonionic surfactant Tween 80 remain stable. For the nonionic surfactant, the high concentration of salt does not significantly change either the critical micellar concentration (CMC) or the surface tension at the CMC; for the cationic surfactant, the CMC is reduced by roughly 2 orders of magnitude upon adding the salt...
April 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28425186/association-studies-of-low-frequency-coding-variants-in-nonsyndromic-cleft-lip-with-or-without-cleft-palate
#12
Elizabeth J Leslie, Jenna C Carlson, John R Shaffer, Carmen J Buxó, Eduardo E Castilla, Kaare Christensen, Frederic W B Deleyiannis, Leigh L Field, Jacqueline T Hecht, Lina Moreno, Ieda M Orioli, Carmencita Padilla, Alexandre R Vieira, George L Wehby, Eleanor Feingold, Seth M Weinberg, Jeffrey C Murray, Mary L Marazita
Nonsyndromic cleft lip with or without cleft palate (NSCL/P) is a group of common human birth defects with complex etiology. Although genome-wide association studies have successfully identified a number of risk loci, these loci only account for about 20% of the heritability of orofacial clefts. The "missing" heritability may be found in rare variants, copy number variants, or interactions. In this study, we investigated the role of low-frequency variants genotyped in 1995 cases and 1626 controls on the Illumina HumanCore + Exome chip...
April 19, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28422364/novel-technique-for-adhesion-barrier-insertion-by-using-cut-off-surgical-glove-fingers-in-laparoscopic-surgery
#13
Hitomi Nakagawa, Kazuaki Yoshimura, Kazuaki Nishimura, Toru Hachisuga
AIM: Laparoscopic surgery causes fewer postoperative adhesions than laparotomy and adhesion barriers are used to lessen the chance of adhesion. Sodium hyaluronate and carboxymethylcellulose (SH-CMC), a bioresorbable membrane, is effective in preventing adhesions. However, its properties make it difficult to insert the film into the abdominal cavity and to place it into the target area during laparoscopic surgeries. Here we report a novel technique for applying SH-CMC during laparoscopic surgeries by using cut-off surgical glove fingers...
April 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28419955/photodegradation-of-4-4-dibrominated-diphenyl-ether-in-triton-x-100-micellar-solution
#14
Kaibo Huang, Guining Lu, Wenjie Lian, Yifeng Xu, Rui Wang, Ting Tang, Xueqin Tao, Xiaoyun Yi, Zhi Dang, Hua Yin
This study has investigated the photochemical reactions of 4,4'-dibrominated diphenyl ether (BDE-15) in Triton X-100 (TX-100) solution by UV light. All photolysis experiments were performed in TX-100 solutions which were all above critical micelle concentration (CMC). BDE-15 photodegradation follows the pseudo-first-order kinetics under various conditions. The results showed that the degradation rates of BDE-15 increased with the increasing concentration of TX-100, and decreased when TX-100 was used in excess, because TX-100 can act as hydrogen donor, photosensitizer and light barrier...
April 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28418355/-morphometric-features-of-cardiomyocytes-in-the-ventricular-septum-of-patients-with-hypertrophic-cardiomyopathy
#15
I F Egorova, R A Serov, L A Bockeria
AIM: to determine the diameter and length of cardiomyocytes (CMC) in the ventricular septum (VS) of patients with hypertrophic cardiomyopathy (HCM) and to analyze correlations of a change in CMC sizes with the anatomical features of the heart in the patients. MATERIAL AND METHODS: Longitudinal sections of intraoperative myocardial biopsy specimens taken from 23 patients aged 15-59 years with HCM were treated using immunohistochemical detection of connexin 43; the sizes of 50 CMCs were measured; a 4-point scale was used to assess the degree of myofibril loss (MFL) in these cells...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28415498/reduction-sensitive-micelles-self-assembled-from-amphiphilic-chondroitin-sulfate-a-deoxycholic-acid-conjugate-for-triggered-release-of-doxorubicin
#16
Hongxia Liu, Shuqin Wu, Jingmou Yu, Dun Fan, Jin Ren, Lei Zhang, Jianguo Zhao
Reduction-sensitive chondroitin sulfate A (CSA)-based micelles were developed. CSA was conjugated with deoxycholic acid (DOCA) via a disulfide linkage. The bioreducible conjugate (CSA-ss-DOCA) can form self-assembled micelles in aqueous medium. The critical micelle concentration (CMC) of CSA-ss-DOCA conjugate is 0.047mg/mL, and its mean diameter is 387nm. The anticancer drug doxorubicin (DOX) was chosen as a model drug, and was effectively encapsulated into the micelles with high loading efficiency. Reduction-sensitive micelles and reduction-insensitive control micelles displayed similar DOX release behavior in phosphate buffered saline (PBS, pH7...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28413443/molecular-and-biochemical-characterization-of-recombinant-cel12b-cel8c-and-peh28-overexpressed-in-escherichia-coli-and-their-potential-in-biofuel-production
#17
Eman Ibrahim, Kim D Jones, Keith E Taylor, Ebtesam N Hosseney, Patrick L Mills, Jean M Escudero
BACKGROUND: The high crystallinity of cellulosic biomass myofibrils as well as the complexity of their intermolecular structure is a significant impediment for biofuel production. Cloning of celB-, celC-encoded cellulases (cel12B and cel8C) and peh-encoded polygalacturonase (peh28) from Pectobacterium carotovorum subsp. carotovorum (Pcc) was carried out in our previous study using Escherichia coli as a host vector. The current study partially characterizes the enzymes' molecular structures as well as their catalytic performance on different substrates which can be used to improve their potential for lignocellulosic biomass conversion...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28412189/mean-5-year-follow-up-for-suture-button-suspensionplasty-in-the-treatment-of-thumb-carpometacarpal-joint-osteoarthritis
#18
Jeffrey Yao, Andre Eu-Jin Cheah
PURPOSE: Suture button suspensionplasty (SBS) has been used to treat thumb carpometacarpal joint osteoarthritis (CMC joint OA). Although promising short-term outcomes have been reported, no outcomes beyond 4 years have been published. The aim of this article is to report intermediate outcomes of SBS. METHODS: We reviewed the charts of 14 patients who underwent 16 SBS procedures for symptomatic thumb CMC joint OA. We recorded demographic data, preoperative Eaton stage, length of follow-up, Quick-Disabilities of the Arm, Shoulder, and Hand questionnaire scores, as well as pinch strength, grip strength, range of motion, and metacarpal subsidence...
April 12, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28409440/repair-of-primary-and-incisional-hernias-using-composite-mesh-fixed-with-absorbable-tackers-preliminary-experience-of-a-laparoscopic-approach-with-a-newly-designed-mesh-in-29-cases
#19
Ferdinando Agresta, Alice Marzetti, Silvia Vigna, Daniela Prando, Raffaele Porfidia, Salomone Di Saverio
Outcome of primary and incisional hernia repair is still affected by clinical complications in terms of recurrences, pain and discomfort. Factors like surgical approach, prosthesis characteristics and method of fixation might influence the outcome. We evaluated in a prospective observational study a cohort population which underwent primary and incisional laparoscopic hernia repair, with the use of a composite mesh in polypropylene fixed with absorbable devices. We focused on assessing the feasibility and safety of these procedures; they were always performed by an experienced laparoscopic surgeon, analyzing data from our patients through the EuraHS registry...
April 13, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28409112/plasticity-of-premotor-cortico-muscular-coherence-in-severely-impaired-stroke-patients-with-hand-paralysis
#20
Paolo Belardinelli, Leonard Laer, Erick Ortiz, Christoph Braun, Alireza Gharabaghi
Motor recovery in severely impaired stroke patients is often very limited. To refine therapeutic interventions for regaining motor control in this patient group, the functionally relevant mechanisms of neuronal plasticity need to be detected. Cortico-muscular coherence (CMC) may provide physiological and topographic insights to achieve this goal. Synchronizing limb movements to motor-related brain activation is hypothesized to reestablish cortico-motor control indexed by CMC. In the present study, right-handed, chronic stroke patients with right-hemispheric lesions and left hand paralysis participated in a four-week training for their left upper extremity...
2017: NeuroImage: Clinical
keyword
keyword
69638
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"