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Melissa A Fierke et al.
ACS applied materials & interfaces, 4(9), 4731-4739 (2012-08-22)
Detection of explosives, such as 2,4,6-trinitrotoluene (TNT), is becoming increasingly important. Here, 2,4-dinitrotoluene (DNT, a common analogue of TNT) is detected electrochemically. A receptor based electrode for the detection of DNT was prepared by modifying the surface of the walls
Jun Zhe Min et al.
European journal of mass spectrometry (Chichester, England), 20(6), 477-486 (2014-01-01)
A rapid and sensitive ultraperformance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (UPLC-ESI-MS/MS) method has been developed and validated for quantitatively determining diacetylpolyamines in the human fingernail. N(1),N(8)-diacetylspermidine (DiAct-Spd), N(1),N(12)- diacetylspermine (DiAct-Spm) and 1,6-diaminohexane (DAH) the [internal standard
Cenk Daglioglu et al.
Artificial cells, blood substitutes, and immobilization biotechnology, 40(6), 378-384 (2012-06-08)
Trypsin was immobilized by covalent binding to glutaraldehyde-activated silica with and without a spacer arm; 1,6-diaminohexane and polyethyleneglycol as well. The addition of polyethyleneglycol (PEG) to the immobilization media increased the activity of immobilized trypsin in organic solvents, whilst free
Huina Zhang et al.
Biomaterials, 30(25), 4063-4069 (2009-06-03)
We previously established a simple method to immobilize the Arg-Gly-Asp (RGD) peptide on polycaprolactone (PCL) two-dimensional film surfaces that significantly improved bone marrow stromal cell (BMSC) adhesion to these films. The current work extends this modification strategy to three-dimensional (3D)
Hyuncheol Kim et al.
Pharmaceutical research, 26(2), 329-337 (2008-10-30)
To investigate the movement of intravitreally injected human serum albumin nanoparticles (HSA-NP) with respect to nanoparticle surface charge and retinal injury. HSA-NPs were developed by a desolvation technique. HSA-NPs were cationized by covalent coupling of hexamethylenediamine on the particle surface.
Shuai Liu et al.
Journal of the American Heart Association, 9(8), e014757-e014757 (2020-04-21)
Background The protective effects of polyamines on cardiovascular disease have been demonstrated in many studies. However, the roles of spermidine, a natural polyamine, in abdominal aortic aneurysm (AAA) disease have not been studied. In this study, we investigated the influence
Zhongxin Zhou et al.
Biotechnology and applied biochemistry, 62(2), 268-274 (2014-06-04)
More information regarding the bactericidal properties of polyhexamethylene guanidine hydrochloride (PHMG) against clinically important antibiotic-resistant ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) pathogens needs to be provided for its uses in infection control.
Xiang Mei Yan et al.
Journal of biomaterials applications, 27(2), 179-186 (2011-04-30)
HA-HMDA hydrogels were developed by direct amide bond formation between the carboxyl groups of hyaluronic acid (HA) and hexamethylenediamine (HMDA) with an optimized carboxyl group modification in the preliminary experiment. However, these HA-HMDA hydrogels transformed into an unstable liquid form
Linda G T Gaines et al.
Journal of environmental monitoring : JEM, 12(3), 591-599 (2010-05-07)
Urine amine levels used as biomarkers of diisocyanate exposure have usually been normalized with creatinine concentration. The suitability of using creatinine concentration or specific gravity for these biomarkers in exposure assessment has not been established. We investigated the effect of
Jie Meng et al.
PloS one, 7(7), e38995-e38995 (2012-07-19)
In this work the effects of four different multiwalled carbon nanotubes (MWCNTs), including long carboxylated (L-COOH), short carboxylated (S-COOH), long aminated (L-NH(2)) and short aminated (S-NH(2)) ones, on the integrity of red blood cells, coagulation kinetics and activation of platelets
Qingyang Meng et al.
Scientific reports, 5, 17802-17802 (2015-12-04)
Articular cartilage injury is still a significant challenge because of the poor intrinsic healing potential of cartilage. Stem cell-based tissue engineering is a promising technique for cartilage repair. As cartilage defects are usually irregular in clinical settings, scaffolds with moldability
Leman Tarhan et al.
Applied biochemistry and biotechnology, 163(2), 258-267 (2010-07-27)
Phenylalanine dehydrogenase (L-PheDH) from Sporosarcina ureae was immobilized on DEAE-cellulose, modified initially with 2-amino-4,6-dichloro-s-triazine followed by hexamethylenediamine and glutaraldehyde. The highest activity of immobilized PheDH was determined as 95.75 U/g support with 56% retained activity. The optimum pH value of
Synthesis of dialkyl hexamethylene-1, 6-dicarbamate from 1, 6-hexamethylenediamine and alkyl carbamate over FeCl3 as catalyst.
Guo X, et al.
Catalysis Communications, 10(8), 1248-1251 (2009)
M Anbarasu et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 135, 536-539 (2014-08-16)
Polyethylene glycol (PEG) coated Fe3O4 nanoparticles were synthesized by chemical co-precipitation method. With polyethylene glycol (PEG) as a stabilizer and dispersant. The X-ray diffraction and selected area electron diffraction (SAED) results show that the cubic inverse spinel structure of pure
Gerald L Kennedy
Drug and chemical toxicology, 28(1), 15-33 (2005-02-22)
Hexamethylendiamine (HMDA; CAS No. 124-09-4; 6055-52-3 for the dihydrochloride salt) is moderately toxic following acute doses/exposures with oral lethal doses in rats ranging from 750 to 1500 mg/kg. HMDA is extremely irritating to the skin and eyes and is not
Mingyu Tang et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 24(4), 487-491 (2008-04-12)
A facile strategy of an amperometric biosensor for hydrogen peroxide based on the direct electrocatalysis of hemoglobin (Hb) immobilized on gold nanoparticles (GNPs)/1,6-diaminohexane (DAH) modified glassy carbon electrode (GCE) has been described. A uniform monolayer film of DAH was initially
Gerald L Kennedy
Drug and chemical toxicology, 30(2), 145-157 (2007-04-25)
Three alkyl diamines, which are by-products formed and separated during the production of hexamethylene diamine, have been tested, mostly for their acute toxicity. This paper reviews methodologies used and the results obtained from these three chemicals. All three tested [2-methyl-1,5-pentanediamine
Surface modification of detonation nanodiamond with ethylenediamine and hexamethylenediamine.
Yakovlev RY, et al.
Mendeleev Communications, 4(22), 213-214 (2012)
Jeong Ah Byun et al.
Biomedical chromatography : BMC, 22(1), 73-80 (2007-08-02)
A quantitative analysis of polyamines in urine and serum by liquid chromatography-tandem mass spectrometry (LC-MS/MS) is described. The polyamines were carbamylated with isobutyl chloroformate, extracted with diethyl ether under pH 9.0, and analyzed by LC-MS/MS with single reaction monitoring mode.
Paul E Kendra et al.
Environmental entomology, 37(5), 1119-1125 (2008-11-28)
A current trapping system for Anastrepha fruit flies uses a two-component food-based synthetic attractant consisting of ammonium acetate and putrescine (1,4-diaminobutane). Development of more effective monitoring programs may be realized through identification of additional attractant chemicals. This study examined response
Linda G T Gaines et al.
The Annals of occupational hygiene, 54(6), 678-691 (2010-06-10)
Urinary 1,6-hexamethylene diamine (HDA) may serve as a biomarker for systemic exposure to 1,6-hexamethylene diisocyanate (HDI) in occupationally exposed populations. However, the quantitative relationships between dermal and inhalation exposure to HDI and urine HDA levels have not been established. We
E A Grebenik et al.
Acta naturae, 6(4), 48-53 (2015-01-06)
The development of targeted constructs on the basis of photoluminescent nanoparticles with a high photo- and chemical stability and absorption/emission spectra in the "transparency window" of biological tissues is an important focus area of present-day medical diagnostics. In this work
Qingqing Zhang et al.
Talanta, 131, 666-671 (2014-10-05)
A ratiometric pH probe composed of a fluorescein moiety and an ionic near-infrared-emitting phosphorescent cyclometalated iridium(III) complex bis(6-(benzo[b]thien-2-yl)phenanthridinato)(4-(3-carboxypropyl)-4'-methyl-2,2'-bipyridine)iridium(III) was synthesized. With good cell permeability, the probe demonstrated a linear ratiometric response to the pH variation in the physiological range in
Fátima M F Vergara et al.
Bioorganic & medicinal chemistry letters, 19(17), 4937-4938 (2009-08-04)
A series of 11 alpha,omega-diaminoalkanes, (H(2)N(CH(2))(n)NH(2), n=2-12) have been evaluated for their in vitro antibacterial activity against Mycobacterium tuberculosis H37Rv. Compounds, (H(2)N(CH(2))(n)NH(2), n=9-12), exhibited a very good activities in the range 2.50-3.12 microg/mL, which can be compared with that of
V N Rakitskiĭ et al.
Voprosy pitaniia, 81(6), 67-73 (2012-01-01)
It was purposed new technique by capillary gas chromatography (GC) for the low level determination of monomer hexamethylenediamine (HMDA) in food simulants water from polymeric materials in contact with foodstuffs. Hexamethylenediamine, HN2-(CH2)6-NH2, is a monomer used in the manufacture of
Yoshihisa Okuchi et al.
Nature materials, 20(1), 108-118 (2020-09-23)
The maintenance of human skeletal stem cells (hSSCs) and their progeny in bone defects is a major challenge. Here, we report on a transplantable bandage containing a three-dimensional Wnt-induced osteogenic tissue model (WIOTM). This bandage facilitates the long-term viability of
Motoh Mutsuga et al.
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan, 51(5), 228-236 (2010-11-13)
Migration of 2 kinds of monomer and 21 kinds of primary aromatic amines (PAAs) from 21 kinds of nylon products such as turners, ladles and wrap film were determined. Samples were classified as regards materials by mean of pyrolysis-GC/MS. One
Junseok Yeom et al.
Bioconjugate chemistry, 21(2), 240-247 (2010-01-19)
A novel, biocompatible, and nontoxic dermal filler using hyaluronic acid (HA) hydrogels was successfully developed for tissue augmentation applications. Instead of using highly reactive cross-linkers such as divinyl sulfone (DVS) for Hylaform, 1,4-butanediol diglycidyl ether (BDDE) for Restylane, and 1,2,7,8-diepoxyoctane
Sensors and Actuators B, Chemical, 13, 420-420 (1993)
Wei-Chiang Chen et al.
ACS applied materials & interfaces, 1(8), 1821-1826 (2010-04-02)
Solvent microenvironments are formed around individual single-walled carbon nanotubes (SWNTs) by mixing SWNT suspensions with water-immiscible organic solvents. These microenvironments are used to encapsulate the SWNTs with the monomer sebacoyl chloride. Hexamethylene diamine is then injected into the aqueous phase
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