Dansyl fluorophore functionalized hierarchically structured mesoporous silica nanoparticles as novel latent fingerprint development agents.

A nanostructured hybrid material based on mesoporous silica nanoparticles (MCM-41) functionalized with chitosan and a fluorescent dye (dansylglycine), designated MCM-41@Ch@DnsGly, was synthesized and characterized with a view to its application for the visualization of latent fingerprints. These nanoparticles were applied as latent fingerprint developers for marks on surfaces of diverse chemical composition, topography, optical characteristics, and spatially variant nature, typical of forensically challenging evidence. For quality assessment of the enhanced fingermarks, the developed images were analyzed holistically using the UK Home Office scale, forensic protocols and, in terms of their constituent features (minutiae), using forensic software.

Harnessing Efficient ROS Generation in Carbon Dots Derived from Methyl Red for Antimicrobial Photodynamic Therapy.

The emergence of drug-resistant pathogenic microorganisms has become a public health concern, with demand for strategies to suppress their proliferation in healthcare facilities. The present study investigates the physicochemical and antimicrobial properties of carbon dots (CD-MR) derived from the methyl red azo dye. The morphological and structural analyses reveal that such carbon dots present a significant fraction of graphitic nitrogen in their structures, providing a wide emission range.

A "turn-off" fluorescent sensor based on electrospun polycaprolactone nanofibers and fluorene(bisthiophene) derivative for nitroaromatic explosive detection.

The preparation of fluorene(bisthiophene)-based fluorescent nanofibers for nitroaromatic explosive detection provides a convenient rapid and low-cost strategy aiming at forensic applications. Polycaprolactone (PCL) and fluorene(bisthiophene) derivative (FBT) nanofibers were obtained by electrospinning technique as a free-standing mat and characterized by SEM, FTIR, thermal analysis and fluorescence spectroscopy. The PCL/FBT nanofibers presented high sensitivity towards 2,4,6-trinitrotoluene (TNT) and picric acid (PA), with fluorescence quenching (turn-off mechanism), and selectivity to another kind of explosives.

Elaboration and validation of a drug administration checklist for patients in research protocols.

Objective: To describe the elaboration and validation of a checklist as a strategy for safe drug administration.

Method: It is a Validation study by consensus of experts conducted from January to June 2018, in a Clinical Research Center of a university hospital. The checklist was validated by three nurses, two nursing technicians, a pharmacist, two nurse teachers and one medical teacher, all with extensive experience in drug administration and in clinical research.

Asymptomatic gastric bacterial overgrowth after bariatric surgery: are long-term metabolic consequences possible?

Background: Patients with postbariatric bacterial overgrowth were reinvestigated after a follow-up of 15 years. It was hypothesized that systemic associations analogous to those reported for whole gut microbiome would be revealed.

Methods: Patients (n = 37, 70.

660 AsGaAl laser to alleviate pain caused by cryosurgical treatment of oral leukoplakia: a preliminary study.

Objective: To investigate the ability of low-level laser therapy (LLLT) to alleviate pain caused by the cryosurgical treatment of oral leukoplakia (OL).

Methods: Ten patients with OL were submitted to cryosurgical treatment (Non-LLLT group) and eight were submitted to cryosurgical treatment associated with LLLT (LLLT group). Laser irradiation of patients within the LLLT group was performed using a 50 mW 660 nm continuous wave Gallium Aluminum Arsenide (GaAlAs) laser with a spot size at the tissue surface of 0.

A review of the nonsurgical treatment of oral leukoplakia.

The aim of this paper was to assess the nonsurgical treatment of oral leukoplakia (OL). A medline search from 1983 to 2009 was conducted. The topical or systemic nonsurgical treatments or combination of both was reviewed.

Increased gastric cytokine production after Roux-en-Y gastric bypass for morbid obesity.

Hypothesis: Mucosal cytokines may be involved in the process of gastric bacterial contamination that may occur after Roux-en-Y bypass for morbid obesity in both gastric chambers, with inflammation and gastritis mostly in the excluded stomach.

Design: A prospective observational study in a homogeneous population with nonspecific complaints.

Setting: Outpatient clinic of a large, public, academic hospital.

Microbial flora of the stomach after gastric bypass for morbid obesity.

Background: The normal stomach is virtually sterile but the effect of Roux-en-Y gastric bypass (RYGBP) on bacterial flora in the used (very small proximal pouch) and unused (large bypassed) gastric chambers is not known. In a prospective study, this variable was documented.

Methods: Bariatric subjects (n=37) were submitted to endoscopic examination of both gastric reservoirs via FUJINON enteroscope model EN-450P5, 7.

Inhibition of spinach chloroplast F0F1 by an Fe2+/ascorbate/H2O2 system.

Plant chloroplasts are particularly threatened by free radical attack. We incubated purified soluble spinach chloroplast F(0)F(1) (CF(0)F(1), EC 3.6.

Microsatellite instability in solitary and sporadic gastric cancer.

Unlabelled: Recently, the presence of microsatellite instability (MSI) has been reported in gastric cancer and associated with older age of presentation, distal tumor location, early disease staging, and better overall prognosis. Different characteristics in presentation and in tumor behavior may be explained by different genetic alterations during carcinogenesis of gastric cancer. Identification of specific genetic pathways in gastric cancer may have direct impact on prognosis and selection of treatment strategies.