SEM observation of bone interface of titanium-coated 317L plate screw

The scanning electron microscope (SEM) results of bone interface of titanium-coated 317L plate screw are reported in this article. 317L plate screw had a rough surface composed of sprayed pure titanium which formed a bone/metal interface in biointegration after implanted into the mandible of dog. Though a bone/metal interface in osseointegration was also formed on the surface of uncoated 317L plate screw after implantation, a smal1 space was seen between the bone and surface of the screw, indicating that the tissue compatibility of titanium-coated 317L plate screw may be better than that of the non-coated screw.

Titanium-coated polypropylene mesh as innovative bioactive material in conservatives mastectomies and pre-pectoral breast reconstruction

Breast reconstruction is rapidly evolving,thanks to the growing acceptance of synthetic meshes as innovative biomaterials.276 patients undergoing mastectomy(total of 328 mastectomies)were analyzed in a retrospective observational study to evaluate the pre-pectoral immediate breast reconstruction(IBR)using an implant wrapped with Titanium-Coated Polypropylene Mesh(TCPM)vs.patients treated with tissue expander(TE),equally placed pre-pectorally(and wrapped with the same TCPM in 74.3%of the control group’breasts).163 patients,of the study group(SG),underwent mastectomy and pre-pectoral IBR with implant wrapped with TCPM,in a one-step surgery,called direct-to-implant technique(DTI),while 113 patients control group(CG)underwent mastectomy and TE.DTI technique has been performed in 192 breasts of the SG while TE procedure in 136 breasts of the CG.The BREAST-Q questionnaire has been provided before the treatment and 2 years later.Baker scale has been used to evaluate capsular contracture.Oncologic,surgical,and aesthetic outcomes along with BREAST-Q scores were analyzed.Additionally,a histologic evaluation was conducted in 11 capsules’samples randomly chosen(6 derived from SG patients and 5 derived from CG).Complications were recorded in 43 cases(29SG-14CG):8 skin-nipple necrosis(5SG-3CG),8 wound dehiscence(6SG-2CG),3 hematomas(1SG-2CG),and 24 infections(8SG-16CG).Grade IV capsular contracture was detected in 9 breasts(1SG-8CG),whereas 254 breasts were grade I(110SG-144CG),33(10SG-23CG)grade II,and 32(4SG-28CG)grade III.Implant wrinkling was detected in 18 cases(10SG-8CG)after 30 months.The local tumor recurrence rate was 5.8%.Three recurrences were on the nipple-areola complex(1.9%).SG patients showed significantly higher rates in the BREAST-Q overall Satisfaction with Outcome(74.1),overall Satisfaction with Breasts(69.1),Psychosocial Well-being(81.9),and Sexual Well-being(63.1),versus CG’s patients(p<0.05).Histological analysis showed a process of normal tissue repair with a complete mesh integration and normal healing.Conservative mastectomies with pre-pectoral IBR assisted by TCPM proved themselves oncologically safe,biologically integrated into native tissues,and highly accepted in terms of quality of life guaranteeing a more natural and aesthetic breast appearance.Core tip:This retrospective observational study provided clinical and histological outcomes of the pre-pectoral IBR using an implant wrapped with TCPM vs.patients treated with TE,equally placed pre-pectorally.The efficacy of IBR using an implant wrapped with TCPM was confirmed by the cosmetic results obtained and by a rate of side effects comparable to TE.All the histological analyses performed confirmed the TCPM mesh complete integration with the physiological aspects of healing:The Collagen 1 and 3 expressions did not differ,between TCPM and NO TCPM samples to confirm a process of healing overlapping to perfect device incorporation and normal healing.

Multiresidue pesticide analysis in tomato using GC-MS/MS using modified QuEChERS method with titanium-coated graphite with CNT-ABS nanocomposite as dispersive solid-phase extraction materials

The presence of pesticide residues in food and vegetables is a growing concern for consumers.To monitor these residues reliably,a selective and sensitive multiresidue system has been developed and validated in tomato by gas chromatography–tandem mass spectrometry(GC-MS/MS).Titanium-coated graphite with carbon nanotube(CNT)in acrylonitrile–butadiene–styrene(ABS)used as reversed-dispersive solid-phase extraction materials with modified QuEChERS(Quick,Easy,Cheap,Effective,Rugged,and Safe)method.Titanium-coated graphite with CNT-ABS is synthesized,characterized by X-ray diffraction and scanning electron microscopy.The clean-up performance of titanium-coated graphite with CNT-ABS was demonstrated to be better to primary secondary amine and graphitized carbon black cartridges.The processing of two multiple reaction monitoring transformations for each analyte is done using GC-MS/MS in electron impact mode.Satisfactory purification and recovery effects(74%–100%)of 35 pesticides were achieved in tomato matrices when using 5 mg of titanium-coated graphite ABS-CNT nanocomposite.It was observed that quinolphos and deltamethrin are present above the maximum residue limit.The technique proved to be reliable and sensitive in tomato samples for the routine testing of 35 pesticides.