certain strains of staphylococcus aureus produce a toxin which cause epidermal exfoliation within 18 hours after direct subcutaneous or intraperitoneal injection into newborn mice. the extracellular product responsible for exfoliation is termed exfoliative toxin (et). in the present studies a modified assay system has been developed for detection of exfoliativeactivity in toxin negative strains...

Objectives: Pulpotomy works to retain a healthy tooth in the mouth till exfoliation by protecting radicular pulp. The coronal pulp must be removed, and given medication, order maintain tooths health function. Subject Methods: children who took part this clinical investigation were chosen aged 4 8 years old, following approval from Ethical Committee obtaining signed informed consent their parent...

The study cohort consists of 459 subjects over 60 years of age. Intraocular pressure and degrees of exfoliation, lens changes, and pigment were recorded and their interrelationships investigated. A raised intraocular pressure was found to be associated with exfoliation, as also was increased pigmentation and the development of lens changes. An original observation is that the exfoliated males h...

In the Eye Outpatient Department of H.P. Medical College Hospital, Simla, nine cases of capsular exfoliation affecting seventeen eyes were seen in the course of 6 months. Their main features are given in Table I (overleaf, pp. I22 and 123). All the patients were males between the ages of 6o and 76 years. The capsular exfoliation was associated with phakodonesis, iridodonesis, glaucoma, primary ...

A rare case of delamination and replication of the anterior lens capsule into prominent floating folds in the anterior chamber approximately 55 years after a penetrating injury to the eye and anterior lens capsule is reported. Classically, true exfoliation of the anterior lens capsule has been reported in individuals who have been exposed to intense heat over a prolonged period. However, more r...

Exfoliation of graphite is a promising approach for large-scale production of graphene. Oxidation of graphite effectively facilitates the exfoliation process, yet necessitates several lengthy washing and reduction processes to convert the exfoliated graphite oxide (graphene oxide, GO) to reduced graphene oxide (RGO). Although filtration, centrifugation and dialysis have been frequently used in ...

Isolating large-areas of atomically thin transition metal chalcogenide crystals is an important but challenging task. The mechanical exfoliation technique can provide single layers of the highest structural quality, enabling to study their pristine properties and ultimate device performance. However, a major drawback of the technique is the low yield and small (typically < 10 μm) lateral size o...