Reactions to Sunlight - Biotech, Pharma and Life Science Channel

01:45 EDT 23rd May 2015 | BioPortfolio

PubMed Articles [2823 Associated PubMed Articles listed on BioPortfolio]

Ion-exchange equilibrium of N-acetyl-d-neuraminic acid on a strong anionic exchanger.

N-acetyl-d-neuraminic acid (Neu5Ac) is a high value-added product widely applied in the food industry. A suitable equilibrium model is required for purification of Neu5Ac based on ion-exchange chromat...

Physicochemical characterization of novel Schiff bases derived from developed bacterial cellulose 2,3-dialdehyde.

The synthesis of two novel Schiff's bases (cellulose-2,3-bis-[(4-methylene-amino)-benzene-sulfonamide] (5) & cellulose-2,3-bis-[(4-methylene-amino)-N-(thiazol-2-yl)-benzenesulfonamide] (6) via condens...

Homogeneous tosylation of agarose as an approach toward novel functional polysaccharide materials.

The homogeneous tosylation of agarose was studied with respect to the effects of reaction parameters, such as reaction medium, time, and molar ratio, on the reaction course, the degree of substitution...

Utilization of olive tree branch cellulose in synthesis of hydroxypropyl carboxymethyl cellulose.

This paper describes the functionalization of cellulose extracted from olive tree branches by subjecting it to successive etherification reactions, hydroxypropylation and carboxymethylation. Factors a...

A highly selective and sensitive electrochemical CS-MWCNTs/Au-NPs composite DNA biosensor for Staphylococcus aureus gene sequence detection.

This paper presents a new electrochemical DNA biosensor constructed using a substrate electrode composed of a novel nanocomposite material prepared using gold nanoparticles (Au-NPs) and multiwalled ca...

Electrochemical characterization of gelatinized starch dispersions: Voltammetry and electrochemical impedance spectroscopy on platinum surface.

The electrochemical properties of gelatinized starch dispersions (GSD; 5% w/w) from different botanical sources were studied using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (E...

Ebola Risk Perception in Germany, 2014.

Ebola virus disease (EVD) outbreaks have occurred during the past 5 decades, but none has affected European countries like the 2014 epidemic in West Africa. We used an online questionnaire to investig...

Pre-clinical in vivo models for the screening of bone biomaterials for oral/craniofacial indications: focus on small-animal models.

Preclinical in vivo experimental studies are performed for evaluating proof-of-principle concepts, safety and possible unwanted reactions of candidate bone biomaterials before proceeding to clinical t...

Stereochemical Course of Wittig Rearrangements of Dihydropyran Allyl Propargyl Ethers.

[2,3]-Wittig rearrangements of sugar-derived dihydropyran allyl propargyl ethers located at the 2- or 4-position have been studied as useful means for extending the carbon chains to the 4- or 2-positi...

Mn-Mediated Radical-Ionic Annulations of Chiral N-Acylhydrazones.

Sequencing a free radical addition and nucleophilic substitution enables [3+2] and [4+2] annulations of N-acylhydrazones to afford substituted pyrrolidines and piperidines. Photolysis of alkyl iodides...

News Articles [531 Associated News Articles listed on BioPortfolio]

Quarter of sun-exposed skin samples had DNA mutations

A sobering BBC News headline greets sun worshippers on the eve of the spring bank holiday: "More than a quarter of a middle-aged person's skin may have already made the first steps towards cancer...

A New Amination Reaction

Phil Baran and group have another big new synthetic methods paper out in Science, and it's well worth a look. It's a radical mechanism, based on some earlier work from the group, as you might guess fr...

Association analysis of CYP2C9*3 and phenytoin-induced severe cutaneous adverse reactions (SCARs) in Thai epilepsy children

Reger Vein & Skin Specialists Reverse Aging and Sun Damaged Skin with Photofacials

As summer gets into full swing, Reger Vein & Skin Specialists discuss the benefits of undergoing photofacials, a procedure that corrects sun damage, at this time of year The Woodlands, TX (PRWEB) ...

Efficient photocathode for generating hydrogen using sunlight

A team at the HZB Institute for Solar Fuels has developed a new composite photocathode for generating hydrogen with high quantum efficiency using sunlight. This enables solar energy to be stored chemi...

During Skin Caner Awareness Month, Experts at Skin and Cancer Center of Scottsdale Warn Preventable Skin Cancers Brought on by Lifestyle Habits Developed Early in Life

One in five Americans are projected to get some form of skin cancer in their lifetime. One in 50 are expected to contract melanoma, the deadliest form of skin cancer. Phoenix, Arizona (PRWEB) May 19, ...

During Skin Cancer Awareness Month, Experts at Skin and Cancer Center of Scottsdale Warn Preventable Skin Cancers Brought on by Lifestyle Habits Developed Early in Life

One in five Americans are projected to get some form of skin cancer in their lifetime. One in 50 are expected to contract melanoma, the deadliest form of skin cancer. Phoenix, Arizona (PRWEB) May 19, ...

Size- and shape-dependent foreign body immune response to materials implanted in rodents and non-human primates

Implanted spheres of a broad variety of material classes significantly abrogate foreign body reactions and fibrosis in rodent and non-human primates when the spheres are larger than 1.5 mm in diameter...

Americans Underestimate Serious Eye Health Risks of UV Radiation

ALEXANDRIA, Va., May 19, 2015 /PRNewswire/ -- A new report released today by The Vision Council finds more than 25 percent of U.S. adults rarely or never wear sunglasses, leaving eyes at risk of ...

AAPS PharmSciTech: Effect of Simultaneous Administration of Dihydroxyacetone on the Diffusion of Lawsone Through Various In Vitro Skin Models

Type: Original PaperUnprotected sunlight exposure is a risk factor for a variety of cutaneous cancers. Topically used dihydroxyacetone (DHA) creates, via Maillard reaction, chemically fixed keratin su...

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Companies [13 Associated Companies listed on BioPortfolio]

SageGlass

SageGlass®, a product of Saint-Gobain, is advanced dynamic glass that can be electronically tinted or cleared to optimize daylight and improve the human experience in buildings...

Allergen Research Corporation

Allergen Research Corporation (ARC), founded in 2011, is developing treatments to protect children with food allergies from the life-threatening consequences of accidental exposur...

Mustela

Tested under dermatologic and pediatric control, Mustela® products are always free of parabens, phthalates and phenoxyethanol, and are tested to be hypoallergenic to minimize t...

Columbia Winery

For more than 50 years, Columbia Winery has embraced a progressive winemaking philosophy that has led to new grape varieties, vineyards and blends. Today, Winemaker Sean Hails con...

Amazon.com, Inc.

Amazon.com, Inc. (NASDAQ: AMZN), a Fortune 500 company based in Seattle, opened on the World Wide Web in July 1995 and today offers Earth's Biggest Selection. Amazon.com, Inc. see...

Unilever

Our corporate mission – to add vitality to life – shows how clearly we understand the people who use our products. But the spirit of this mission forms a thread that runs throughout our history, l...

Immuno Laboratories

Headquartered in Fort Lauderdale, Florida, Immuno Laboratories is widely recognized as one of the leading food and environmental allergy testing facilities in the world. Since 197...

ALLOZYNE Inc.

Headquartered in Seattle, ALLOZYNE was established in late 2005, to commercialize proprietary biociphering technology that it licensed, on an exclusive basis, from the California ...

SAGE Electrochromics, Inc.

SAGE Electrochromics is the world’s leading manufacturer of advanced dynamic glass that can be tinted or cleared to optimize daylight and improve the human experience in buil...

ChemAxon Ltd.

ChemAxon is a company specialized in the development of chemical software solutions for the biotechnology- and pharmaceutical industries.Our products and services include tools for the storage, manage...

Clinical Trials [328 Associated Clinical Trials listed on BioPortfolio]

Imiquimod to Detect Residual Lesions and Prevent Recurrence of Lentigo Maligna

This is a prospective, longitudinal, uncontrolled study with follow-up for 5 years.Patients having undergone surgical excision of lentigo maligna (LM) or lentigo maligna melanoma (LMM) wil...

Tinnitus Retraining Therapy Trial

The primary purpose of the Tinnitus Retraining Therapy Trial (TRTT) is to assess the efficacy of tinnitus retraining therapy (TRT) as a treatment for severe debilitating tinnitus. TRT is a...

Observational Study to Assess Safety and Utility Pattern of Topical Steroids

To assess incidence of adverse drug reactions and use pattern of topical steroids among patients who are prescribed or purchase over the counter (OTC) topical steroids for skin conditions ...

Intravenous Heparin as an Adjunct for the Treatment of Anaphylactic Reactions in an Emergency Department

To determine if intravenous unfractionated heparin (with standard therapy) for treatment of anaphylaxis results in faster time to recovery.

Clinical Trial on Individual Characteristics Affecting Pain Drug Therapy in Neonates

Children differ from adults with respect to growth and development but also immaturity of various pharmacological mechanisms. Dosing schemes in children are usually derived in an empirica...

Efficacy Safety and Tolerability of Multiple Doses of Oshadi Icp (Oshadi Oral Insulin) in Patients With Type 1 Diabetes Mellitus - Phase II Clinical Study

Diabetes mellitus (DM) is a chronic disease of carbohydrate, fat, and protein metabolism caused by an absolute or relative deficiency of insulin, an anabolic hormone. The current methods o...

Role of Neutrophil Activation in Anaphylaxis to Curare

In about 10% of preoperative anaphylactic reactions to curare (114 patients analyzed at the BICHAT Hospital), a classical mechanism (mast cell- and IgE-dependent) is not identified. The me...

Special Investigation For Gist Of Sunitinib Malate (Regulatory Post Marketing Commitment Plan).

The objective of this surveillance is to collect information about 1) adverse drug reaction not expected from the LPD (unknown adverse drug reaction), 2) the incidence of adverse drug reac...

Long-Term Use Of Pegaptanib In Patients For Subfoveal Choroidal Neovascularization Secondary To Age-Related Macular Degeneration

The objective of this surveillance is to collect information about 1) adverse drug reaction not expected from the LPD (unknown adverse drug reaction), 2) the incidence of adverse drug reac...

Oral Curcumin for Radiation Dermatitis

The purpose of the study is to determine whether curcumin, an ingredient of some foods, can prevent or reduce the severity of skin reactions (dermatitis) caused by radiation therapy. Derma...

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Medical and Biotech [MESH] Definitions

Abnormal responses to sunlight or artificial light due to extreme reactivity of light-absorbing molecules in tissues. It refers almost exclusively to skin photosensitivity, including sunburn, reactions due to repeated prolonged exposure in the absence of photosensitizing factors, and reactions requiring photosensitizing factors such as photosensitizing agents and certain diseases. With restricted reference to skin tissue, it does not include photosensitivity of the eye to light, as in photophobia or photosensitive epilepsy.

Processes by which phototrophic organisms use sunlight as their primary energy source. Contrasts with chemotrophic processes which do not depend on light and function in deriving energy from exogenous chemical sources. Photoautotrophy (or photolithotrophy) is the ability to use sunlight as energy to fix inorganic nutrients to be used for other organic requirements. Photoautotrophs include all green plants, GREEN ALGAE; CYANOBACTERIA, and green and PURPLE SULFUR BACTERIA. Photoheterotrophs or photoorganotrophs require a supply of organic nutrients for their organic requirements but use sunlight as their primary energy source; examples include certain PURPLE NONSULFUR BACTERIA. Depending on environmental conditions some organisms can switch between different nutritional modes (AUTOTROPHY; HETEROTROPHY; chemotrophy; or phototrophy) to utilize different sources to meet their nutrients and energy requirements.

The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide using energy obtained from light rather than from the oxidation of chemical compounds. Photosynthesis comprises two separate processes: the light reactions and the dark reactions. In higher plants; GREEN ALGAE; and CYANOBACTERIA; NADPH and ATP formed by the light reactions drive the dark reactions which result in the fixation of carbon dioxide. (from Oxford Dictionary of Biochemistry and Molecular Biology, 2001)

The reactions, changes in structure and composition, the properties of the reactions of carbon compounds, and the associated energy changes.

Irradiation directly from the sun.

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