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Hafiz M.n. Iqbal - One of the best experts on this subject based on the ideXlab platform.
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enhanced catalytic features of sol gel immobilized mnp isolated from solid state culture of pleurotus ostreatus ibl 02
Chinese Chemical Letters, 2013Co-Authors: Muhammad Asgher, Hafiz M.n. IqbalAbstract:Abstract An indigenous and industrially important manganese peroxidase (MnP) isolated from solid state culture of Pleurotus ostreatus IBL-02 was 2.1-fold purified and immobilized using sol–gel matrix of trimethoxysilane and proplytetramethoxysilane. Lower K M , higher V max , hyper-activation, enhanced acidic and thermal stability up to 70 °C, were the improved/enhanced catalytic features of the presently sol–gel immobilized MnP. A maximum of 100% decolorization was achieved within a short time period for the different real dyes containing textile industry effluents i.e. Nishat textile (Nit), K&N textile (KIT), Sitara textile (SIT), and Crescent textile (CRT).
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Enhanced catalytic features of sol–gel immobilized MnP isolated from solid state culture of Pleurotus ostreatus IBL-02
Chinese Chemical Letters, 2013Co-Authors: Muhammad Asgher, Hafiz M.n. IqbalAbstract:Abstract An indigenous and industrially important manganese peroxidase (MnP) isolated from solid state culture of Pleurotus ostreatus IBL-02 was 2.1-fold purified and immobilized using sol–gel matrix of trimethoxysilane and proplytetramethoxysilane. Lower K M , higher V max , hyper-activation, enhanced acidic and thermal stability up to 70 °C, were the improved/enhanced catalytic features of the presently sol–gel immobilized MnP. A maximum of 100% decolorization was achieved within a short time period for the different real dyes containing textile industry effluents i.e. Nishat textile (Nit), K&N textile (KIT), Sitara textile (SIT), and Crescent textile (CRT).
Véronique Billat - One of the best experts on this subject based on the ideXlab platform.
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A new incremental test for VO2max accurate measurement by increasing VO2max plateau duration, allowing the investigation of its limiting factors
European Journal of Applied Physiology, 2012Co-Authors: Hélène Petot, Renaud Meilland, Laurence Le Moyec, Laurence Mille-hamard, Véronique BillatAbstract:The purpose of this study was to (1) validate anew exercise protocol for accurate measurement of VO2max by obtention of a VO2max plateau for all subjects fit and unfit (2) test the hypothesis that VO 2max plateau duration is not correlated with VO2max and (3) verify that limiting factors of VO2max plateau duration are different from those of VO2max amplitude. Therefore, 14 subjects performed two incremental cycling tests (1) a classical incremental test (CIT) to determine VO2max, the power at VO2max (PVO 2max) and at the lactate threshold (PLT) (2) a new incremental test (Nit) in which the power was decreased just after the subject reached VO 2max. During both protocols, heart rate, stroke volume, cardiac output, the arterio-venous difference and the oxygen blood saturation were recorded. The results showed that, with the Nit, subject could maintain along VO2max plateau (6 ± 3 min), even those who could not reach VO2max plateau at the end of CIT (n = 5). The VO2max plateau duration was not correlated with VO2max amplitude which was correlated with the power at SVmax (r = 0.888, pandlt;0.001). The VO2max plateau duration was correlated with the power decrease (W/s) during the VO2max plateau (r = -0.72, p = 0.003) but not with cardiac-related factors nor with PVO2max. In conclusion, these experiments showed that it was possible to get a long VO2max plateau at the end of Nit whatever the individual VO2max amplitude was. The limiting factor of VO2max duration was the power output. © 2011 Springer-Verlag.
Hugo De Bruyn - One of the best experts on this subject based on the ideXlab platform.
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clinical aesthetic and patient related outcome of immediately loaded single implants in the anterior maxilla a prospective study in extraction sockets healed ridges and grafted sites
Clinical Implant Dentistry and Related Research, 2013Co-Authors: Filiep Raes, Jan Cosyn, Hugo De BruynAbstract:PURPOSE The objective of this prospective clinical study was to document the overall treatment outcome of immediately loaded single Astra Tech Osseospeed™ (Astra Tech AB, Molndal, Sweden) implants placed in extraction sockets, healed ridges, and grafted sites. MATERIALS AND METHODS Forty-eight patients in need of a single implant in the anterior maxilla (15-25) were recruited. Patients were allocated to a conventional implant treatment (CIT) or immediate implant treatment (IIT) group on the basis of specific criteria. If the buccal bone plate was damaged or missing upon tooth removal, patients were allocated to a grafted implant treatment (GIT) group. Irrespective of the treatment concept, implants were immediately provisionalized. Hard and soft tissue alterations, aesthetic parameters (pink and white esthetic scores, [PES and WES]) and patient's opinion (Oral Health Impact Profile [OHIP-14] questionnaires) were registered at different time points. RESULTS After 1 year of function, the overall implant survival rate was 98% with one failure following IIT. The mean bone level to the implant-abutment interface was 0.65 (SD 0.79), 0.85 (SD 0.64), and 0.56 mm (SD 0.44) for CIT, IIT, and GIT. Complete papilla loss was rare following either strategy. Mean midfacial recession amounted to 1.00 (SD 1.15), 0.12 (SD 0.78), and 0.49 mm (SD 0.82) for CIT, IIT, and GIT, respectively. The aesthetic outcome showed a mean PES of 10.30 (SD 1.89) and mean WES of 7.11 (SD 2.14), all patients considered. Patient's satisfaction showed a significant improvement after 1 year of function on all seven domains (p < .001). CONCLUSIONS This prospective study showed that single implants clinically and aesthetically perform well under immediate non-occlusal loading conditions in the premaxilla. In this context, it is of pivotal importance to stress that patients were carefully selected for IIT and GIT.
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immediate and conventional single implant treatment in the anterior maxilla 1 year results of a case series on hard and soft tissue response and aesthetics
Journal of Clinical Periodontology, 2011Co-Authors: Filiep Raes, Jan Cosyn, Elisabeth Crommelinck, Peter Coessens, Hugo De BruynAbstract:Raes F, Cosyn J, Crommelinck E, Coessens P, De Bruyn H. Immediate and conventional single implant treatment in the anterior maxilla: 1-year results of a case series on hard and soft tissue response and aesthetics. J Clin Periodontol 2011; 38: 385–394. doi: 10.1111/j.1600-051X.2010.01687.x Abstract Aim: The main objective of this clinical study was to document midfacial soft tissue dynamics following single immediate implant treatment (IIT) and conventional implant treatment (CIT) in the anterior maxilla when performed by experienced clinicians in well-selected patients. Material and Methods: Appropriate bone volume and ideal soft tissue levels were considered requirements for implant therapy. Additional prerequisites for IIT were intact socket walls and a thick gingival biotype. CIT included standard flap elevation whereas IIT was either performed with a flap or flapless procedure. All implants were provisionally restored using cemented acrylic crowns. Bone levels, papillae and midfacial soft tissue levels were moNitored at regular intervals. The aesthetic outcome was assessed after 1 year using the pink aesthetic score (PES) and white aesthetic score (WES). Results: Sixteen patients (10 men, six women; mean age 45) received an immediate implant and 23 patients (12 men, 11 women; mean age 40) had conventional implant surgery. One immediate implant failed in the early healing phase. The mean bone level from the implant–abutment interface was 0.85 mm for IIT and 0.65 mm for CIT after 1 year (p=0.144). Mesial papillae remained stable over time. Minute loss of distal papillae occurred following IIT (−0.38 mm) and a tendency for re-growth was found following CIT (0.60 mm). Midfacial soft tissues remained stable over time following IIT with only 7% showing advanced recession (>1 mm). Flapless surgery induced less midfacial recession than flap surgery (p=0.023). Significant midfacial recession occurred following CIT (−1 mm). Overall, 24% were aesthetic failures (PES<8 and/or WES<6) and 8% showed an (almost) perfect outcome (PES12 and WES9). The remainder (68%) demonstrated acceptable aesthetics. Conclusions: Immediate implants demonstrated fairly stable midfacial soft tissue levels with only a minority of cases showing advanced recession. Irrespective of the timing of implant placement, aesthetic failures seem to be rather common and only a strict minority may show perfection.
Daizheng Liao - One of the best experts on this subject based on the ideXlab platform.
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slow magnetic relaxation in lanthanide complexes with chelating Nitronyl Nitroxide radical
Inorganic Chemistry, 2010Co-Authors: Xiaoling Wang, Licun Li, Daizheng LiaoAbstract:Two rare-earth radical complexes [Ln(hfac)3Nit-2Py]·0.5C7H16 [Ln = Tb (1), Dy (2)] have been synthesized and characterized structurally as well as magnetically. Both complexes are isomorphous, in which the Nit-2Py radical is coordinated to the LnIII ion in a chelating manner. Magnetic studies reveal that complex 1 shows a frequency-dependent, alternating-current magnetic susceptibility typical of a single-molecule magnet, whereas slow magnetic relaxation is observed in 2 under an applied direct-current field.
Muhammad Asgher - One of the best experts on this subject based on the ideXlab platform.
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enhanced catalytic features of sol gel immobilized mnp isolated from solid state culture of pleurotus ostreatus ibl 02
Chinese Chemical Letters, 2013Co-Authors: Muhammad Asgher, Hafiz M.n. IqbalAbstract:Abstract An indigenous and industrially important manganese peroxidase (MnP) isolated from solid state culture of Pleurotus ostreatus IBL-02 was 2.1-fold purified and immobilized using sol–gel matrix of trimethoxysilane and proplytetramethoxysilane. Lower K M , higher V max , hyper-activation, enhanced acidic and thermal stability up to 70 °C, were the improved/enhanced catalytic features of the presently sol–gel immobilized MnP. A maximum of 100% decolorization was achieved within a short time period for the different real dyes containing textile industry effluents i.e. Nishat textile (Nit), K&N textile (KIT), Sitara textile (SIT), and Crescent textile (CRT).
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Enhanced catalytic features of sol–gel immobilized MnP isolated from solid state culture of Pleurotus ostreatus IBL-02
Chinese Chemical Letters, 2013Co-Authors: Muhammad Asgher, Hafiz M.n. IqbalAbstract:Abstract An indigenous and industrially important manganese peroxidase (MnP) isolated from solid state culture of Pleurotus ostreatus IBL-02 was 2.1-fold purified and immobilized using sol–gel matrix of trimethoxysilane and proplytetramethoxysilane. Lower K M , higher V max , hyper-activation, enhanced acidic and thermal stability up to 70 °C, were the improved/enhanced catalytic features of the presently sol–gel immobilized MnP. A maximum of 100% decolorization was achieved within a short time period for the different real dyes containing textile industry effluents i.e. Nishat textile (Nit), K&N textile (KIT), Sitara textile (SIT), and Crescent textile (CRT).