Characterization of healthy skin using near infrared spectroscopy and skin impedance

Abstract

Near infrared spectroscopy (NIR) and skin impedance (IMP) spectroscopy are two methods suggested for diagnoses of diseases inducing adverse effects in skin. The reproducibility of these methods and their potential value in non-invasive diagnostics were investigated. Measurements were performed in vivo on healthy skin at five anatomic body sites on eight young women. partial least squares discriminant analysis showed that both methods were useful for classification of the skin characteristics at the sites. Inter-individually the NIR model gave 100% correct classification while the IMP model provided 92%. Intra-individually the NIR model gave 88% correct classification whereas the IMP model did not provide any useful classification. The correct classification was increased to 93% when both datasets were combined, which demonstrates the value of adding information. Partial least squares discriminant analysis gave 72% correct predictions of skin sites while the combined model slightly improved to 73%.

Use of reflectance near-infrared spectroscopy to investigate the effects of daily moisturizer application on skin optical response and barrier function

“…[16][17][18][19] NIR spectra can also provide additional insight regarding other skin constituents including lipids and proteins, can differentiate between different types of water in the skin, 17,18 and monitor changes in skin water mobility. 2 Furthermore, this technique has the added advantage of great flexibility, allowing both in vitro and in vivo assessments to be carried out since its instrumentation can easily be equipped with fiber optic probes.…”

Evaluation of Foot Creams Formulation on Human Skin – A Novel Approach

“…The zone of inhibition was measured by anti biotic zone reader. [6,7,8,9] Wound healing activity Animals are divided into two groups, one act as control and remaining one act as a treatment.…”

Effectiveness of the DreamSkin® garment on relieving symptoms of eczema/dermatitis using electrical and spectroscopic methods: A case study

“…This technique has been accepted internationally as a suitable instrument for determining SC water contents. On the other hand, many studies have shown the possibility of accurate detection of water using NIR spectroscopy by using the intensities of overtone and combination bands of OH and HOH occurring in the NIR region [10][11][12][13][14][15]. Therefore, this method was also included here and is aimed to support our ongoing research on possible implementation of this technique in determinations of skin hydration [16][17].…”