Light activation photochemical processes. Medical search. Frequent questions

Examples of photochemical reactions are photosynthesis in plant cells and light-induced changes that take place in the eye . (newworldencyclopedia.org)
In addition, photochemical reactions are important in photography , dye bleaching, and television displays. (newworldencyclopedia.org)
In the case of photochemical reactions, light provides the activation energy. (newworldencyclopedia.org)
Photogeochemistry merges photochemistry and geochemistry into the study of light-induced chemical reactions that occur or may occur among natural components of Earth's surface. (wikipedia.org)
Similarly, photogeochemistry may also include photochemical reactions of naturally occurring materials that are not touched by sunlight, if there is the possibility that these materials may become exposed (e.g. deep soil layers uncovered by mining). (wikipedia.org)
In addition to the main focus on synthesis of formaldehyde and simple sugars, other light-assisted reactions were occasionally reported, such as the decomposition of formaldehyde and subsequent release of methane, or the formation of formamide from carbon monoxide and ammonia. (wikipedia.org)
2] Photochemical reactions proceed differently than temperature-driven reactions. (nationalvendingblog.com)
1]. Simplistically, light is one mechanism for providing the activation energy required for many reactions. (nationalvendingblog.com)
Photochemical paths access high energy intermediates that cannot be generated thermally, thereby overcoming large activation barriers in a short period of time, and allowing reactions otherwise inaccessible by thermal processes. (nationalvendingblog.com)
Finally, new strategies for CO 2 activation may be inspired by such reactions. (nature.com)
Some photochemical reactions are several orders of magnitude faster than their thermal analogues for instance. (bist.eu)
This works fantastically: you have full control over different parameters, which is an essential aspect in synthetic photochemical reactions ," explains Paolo Melchiorre , ICREA Research Professor, ICIQ Group Leader, and Co-Founder of Treellum. (bist.eu)
Integrating the efficiency of pipe-flow processing with the advanced mixing of 5 Continuous Stirred Tank Reactors (CSTR), f Reactor delivers a versatile "plug-and-flow" setup which is well-suited to multiphasic reactions allowing chemists to explore continuous-flow processing with ease. (asynt.com)
The optogenetic control of bacterial expression predominantly employs but three fundamental strategies: light-sensitive two-component systems, oligomerization reactions, and second-messenger signaling. (optobase.org)
Furthermore, Mg is inevitable for ultrastructure formation of chloroplasts which is necessary for efficient functioning of the light reactions in the photosynthesis. (iapn.de)
The light activation units most used at present are the quartz-halogen-tungsten (QHT), argon lasers, plasma arc and light emitting diodes (LEDs), which have the advantage of promoting photo-chemical reactions and later selective and controlled heating of only the gel, instead of the entire dental structure (5). (bvsalud.org)
The biological effect of ultraviolet radiation (UVR) is due to the ability of the molecules of substances that make up the cells of living organisms to absorb radiation quanta and, as a result, to be involved in various photochemical reactions that change their structure and functions. (kalinka-store.com)
This crucial topic is a mechanism that plays a significant role in numerous chemical reactions and processes. (hellovaia.com)
Further, gain insights into its critical role in influencing chemical processes and reactions: an attribute that elevates its significance in the field of organic chemistry. (hellovaia.com)
Activation energy, Photochemical reactions. (successcds.net)
Photodynamic therapy (PDT) involves the use of photochemical reactions mediated through the interaction of photosensitizing agents, light, and oxygen for the treatment of malignant or benign diseases. (medscape.com)
The generation of singlet oxygen species, labeled type 2 photochemical reactions, are believed to predominate in photodynamic therapy. (medscape.com)
The origin of widely used division of photodynamic processes into type I and type II and the relation of these processes to the nature of the primary photochemical reactions of photosensitizers are discussed. (msu.ru)

Most photochemical transformations occur through a series of simple steps known as primary photochemical processes. (nationalvendingblog.com)

The first efforts that can be considered photogeochemical research can be traced to the "formaldehyde hypothesis" of Adolf von Baeyer in 1870, in which formaldehyde was proposed to be the initial product of plant photosynthesis, formed from carbon dioxide and water through the action of light on a green leaf. (wikipedia.org)
Photochemistry is of immense importance in the natural world: from vision to photosynthesis, life as we know it relies on the interactions between molecules and light. (bist.eu)
Photosynthesis begins with the absorption of light energy by the chlorophyll pigments of the light-harvesting antennae ( Light Harvesting Complexes - LHC - composed of proteins and chlorophyll and carotenoid pigments). (cea.fr)
The vegetation indices normalized difference vegetation index (NDVI) and photochemical reflectance index (PRI) provide indicators of pigmentation and photosynthetic activity that can be used to model photosynthesis from remote sensing with the light-use-efficiency model. (manchester.ac.uk)
Measurement of non-photochemical quenching (NPQ) by chlorophyll fluorescence: Due to reduced assimilation capacity, light energy is in excess to what can be used in photosynthesis and can damage the plant. (iapn.de)
Light is essential for photosynthesis, but an excess, in combination with the unavoidable presence of atmospheric oxygen inside the chloroplast, leads to excessive reactive oxygen species production. (biomedcentral.com)

This last mechanism, which is multifactorial, is known as the non-photochemical quenching of chlorophyll fluorescence . (cea.fr)
Dissipation of absorbed light energy as heat energy is induced by the molecular mechanism of non-photochemical quenching (NPQ) and can be determined from measurements of chlorophyll fluorescence. (iapn.de)
Following blue or red light activation, porphyrins are excited to a higher energy triplet state, which can either emit light (fluorescence) or generate reactive oxygen species, such as singlet oxygen or free radicals. (medscape.com)

Photochemistry, a sub-discipline of chemistry , is the study of the interactions between atoms , molecules , and light (or electromagnetic radiation ). (newworldencyclopedia.org)
The first law of photochemistry, known as the Grotthuss-Draper law (for chemists Theodor Grotthuss and John W. Draper), states that light must be absorbed by a chemical substance in order for a photochemical reaction to take place. (newworldencyclopedia.org)
The second law of photochemistry, the Stark-Einstein law, states that for each photon of light absorbed by a chemical system, only one molecule is activated for a photochemical reaction. (newworldencyclopedia.org)
Photochemistry is the branch of chemistry concerned with the chemical effects of light. (nationalvendingblog.com)
Treellum Technologies successfully condenses more than four years of development of photochemical reactors at ICIQ into a first-class photoreactor that will boost the spread of photochemistry in academia and industry. (bist.eu)
However, until now, synthetic organic chemists have shied away from photochemistry because of safety concerns around ionizing UV light, and overly complex equipment. (asynt.com)
1,2 Through similar photochemistry, Chambers hopes to uplift molecules and convert light hydrocarbons, which still need to be fully exploited, into commodity chemicals. (lsu.edu)
Although true multielectron charge transfer processes do not exist within the realm of molecular photochemistry, one can design mimicking systems via the production of a reactive one-electron charge transfer intermediate. (princeton.edu)

The project includes a new line of photo-reactors with complete temperature and light intensity control. (bist.eu)
Specifically designed for ease of use and high operational safety, the f Reactor Photo Flow delivers all the key advantages of flow photochemical reactors, over conventional batch systems, including consistent light flux, controlled exposure times and precise temperature control. (asynt.com)

Reported in this review are the photochemical and photophysical properties of a group of symmetric, multinuclear complexes of the general form [L′(CN) 4 M(CN)-(PtL 4 )-(NC)-M(CN) 4 L′] n- (where M is a Group 8 metal, L is an amine, and L′ is a σ-donor ligand) that provide for apparent photoinduced multielectron charge transfer. (princeton.edu)

All involve photochemical interactions of photons with the tissue. (drjwv.com)
Chromophobes located in mitochondria (cellular "batteries") absorb photons from the laser light. (drjwv.com)

A photochemical reaction may be thought of as a reaction ignited by the absorption of light. (newworldencyclopedia.org)
Normally, a reaction (not just a photochemical reaction) occurs when the molecules involved gain the activation energy necessary to undergo change. (newworldencyclopedia.org)
The absorption of a photon of light by a reactant molecule may permit a reaction to occur not just by bringing the molecule to the necessary activation energy, but also by changing the symmetry of the molecule's electronic configuration, enabling an otherwise inaccessible reaction path. (newworldencyclopedia.org)
The context of a photogeochemical reaction is implicitly the surface of Earth, since that is where sunlight is available (although other sources of light such as chemiluminescence would not be strictly excluded from photogeochemical study). (wikipedia.org)
Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet (wavelength from 100 to 400 nm), visible light (400-750 nm) or infrared radiation (750-2500 nm). (nationalvendingblog.com)
Here we show that this reaction occurs readily when CO 2 ions scatter from solid surfaces in a two-step sequential collision process at hyperthermal incidence energies. (nature.com)
The process involves a previously unknown intramolecular reaction pathway, which occurs in energetic CO 2 ion-surface collisions with a surprising lack of dependence on either the nature of the surface or the surface temperature. (nature.com)
Using light to provide the activation energy required to start a reaction can have multiple benefits. (bist.eu)
In other cases, using light to trigger a reaction can enable an otherwise inaccessible reaction path - which is exactly what Treellum Technologies intends on doing. (bist.eu)
It is widely acknowledged that photocatalysis is a valuable synthetic tool for providing access to reaction pathways which would normally prove problematic or require multi-step synthetic routes using classical thermal or chemical activation methods. (asynt.com)
In previous studies, the Chambers group successfully demonstrated a functionalization of a carbon-hydrogen bond, C-H, through a photochemical reaction. (lsu.edu)
In addition to the chemical damage due to bleaching gels penetration into the pulp during pulp vitality dental bleaching, another possible aggressive factor could be the heat generated by the exothermal oxidation reaction of the bleaching gel, which may also be aggravated by the use of light activation. (bvsalud.org)
He proposed that light caused the reaction between CO 2 and H 2 O whose primary products were a peroxide-type compound percarbonic acid and formaldehyde. (msu.ru)

Being the central atom in chlorophyll molecules, it contributes to light harvesting. (iapn.de)

Light-initiated C-H activation via net hydrogen atom transfer to a Molybdenum(VI) Dioxo [Reprinted with permission from J. Am. Chem. (lsu.edu)
Her research interests include the advanced materials processing of ideal electrode materials for electrochemical energy storage system applications such as supercapacitor, water splitting process, direct methanol fuel cells, and hydrogen generation. (rsc.org)
Hydrogen evolution by photochemical water splitting has been regarded as the most promising approach to produce hydrogen. (alfa-chemistry.com)

Expression of the Escherichia coli tryptophanase operon depends on ribosome stalling during translation of the upstream TnaC leader peptide, a process for which interactions between the TnaC nascent chain and the ribosomal exit tunnel are critical. (cipsm.de)
Their study, published in JBC, shows that, in this state, all the changes associated with non-photochemical quenching (changes in protein-chlorophyll interactions, neoxanthin torsion) are present except for lutein torsion , while no quenching is associated with this state . (cea.fr)

Oxygen atom functionalization has played an indispensable role in industrial applications and biological processes. (rsc.org)

Because singlet oxygen does not travel very far within a cell, the molecular effects are influenced by the intracellular localization of the photosensitizer at the time of light exposure. (medscape.com)
The dramatic history of mechanistic studies of oxygen photoactivation is reviewed starting from the Bach-Engler peroxidation theory to the hypothesis of moloxide, discovery of singlet oxygen and free radicals and, then, to modern views on the primary photoactivation processes. (msu.ru)

The absorption of light by a reactant elevates the reactant to a higher energy state, or excited state, and the process is called "photoexcitation. (newworldencyclopedia.org)

This article provides an update on photodynamic therapy for the practicing dermatologist by discussing each of the essential components in sequence: mechanisms of action, common photosensitizers, typical light sources, and applications. (medscape.com)

These mechanisms comprise movement of leaves and chloroplasts, photorespiration, cyclic electron flow around photosystem I, screening of photoradiation, thermal energy dissipation of absorbed light energy, and detoxification of reactive oxygen species. (iapn.de)
Detoxification of reactive oxygen species, the production of which is accelerated under conditions of excess light, takes place not only in chloroplasts, but also in peroxisomes and mitochondria of plant cells. (iapn.de)
When the light absorbed/light used for CO 2 fixation ratio is above 1, the generation of reactive oxygen species (ROS) is greatly accelerated, which will lead to the inhibition of photosynthetic machinery. (biomedcentral.com)

Under such conditions, the absorption of light in the light harvesting complexes of the photosystems is excessive, i.e., the available energy cannot be consumed by the photosynthetic processes. (iapn.de)
The absorption of laser light is the key therapeutic goal. (drjwv.com)
However, these traditional photocatalysts suffer from weak light absorption capacity, difficulty in activation, easy electron-hole recombination, poor stability, and other issues. (alfa-chemistry.com)

CO cleavage and coupling was discussed by Theodor Agapie (Caltech) and mimics of reactive intermediates in catalytic processes mediated by transition-metal CO complexes were presented by Josh Figueroa (University of California, San Diego). (fusion-conferences.com)

2019). Photocatalytic degradation was widely considered as potential method since it used light as energy and could mineralize TC. (researchsquare.com)
Abiotic hydrolysis, photodegradation, and biodegradation are all important processes for the transformation and degradation of chlorpyrifos. (cdc.gov)
Although a large amount of chlorpyrifos is used in various environments (see Chapter 4), levels of general exposure are mediated by its limited mobility and persistence, and by environmental degradation processes. (cdc.gov)

For example, for the combustion of gasoline (a hydrocarbon ) to produce carbon dioxide and water, activation energy is supplied in the form of heat or a spark. (newworldencyclopedia.org)
However, petroleum refining and chemical industries are some of the largest energy consumers in the United States as they rely on energy inputs for processing raw materials, fuel production, and facility heating and cooling. (lsu.edu)
In a more energy and environmentally conscious society that we need to exist in, we must revisit some of these underlying processes that are the foundation of the chemical industry. (lsu.edu)
This energy conversion process is extremely efficient . (cea.fr)
This state of LHCII should be considered as a n intermediate state that would allow the transition from an unquenched state, capable of absorbing and converting light energy into chemical energy, to a 'quenched' state through non-photochemical quenching . (cea.fr)
NPQ is considered a photoprotective mechanism because it helps to release the excitation energy absorbed in the light-harvesting complexes of photosystem II as heat, thus protecting the photosynthetic system from an excessive amount of excitation energy. (iapn.de)
Besides these functions, Mg is involved in many more cellular functions like enzyme activation and energy metabolism. (iapn.de)
To protect leaves from damage, the excess light energy is converted to thermal energy, which is assessed as NPQ. (iapn.de)
Plants with Mg deficiency suffer photooxidative stress as light energy reaching the photosystems is excessive and photoprotective mechanisms are enhanced. (iapn.de)
g-C 3 N 4 was a commonly used photocatalyst as it had some advantages, such as energy conservation, sufficiently efficient, stable, inexpensive and capable of harvesting light (Wang et al. (researchsquare.com)
When a semiconductor photocatalyst initiates by an appropriate light source with energy greater than its bandgap energy, the electrons (e − ) can transfer from the valence band (VB) to its conduction band (CB), and then leave holes (h + ) in the corresponding position of the VB. (nso-journal.org)
In addition, plants can also dissipate excess excitation energy in PSII antenna as heat through nonphotochemical processes, which involves the xanthophyll cycle using ascorbate (ASC) as the reducing agent [ 4 ]. (biomedcentral.com)

When laser light penetrates tissue there are a number of mechanisms of action. (drjwv.com)
This process consists of tissue mechanisms of action and cellular mechanisms of action. (drjwv.com)
Among the defense mechanisms that activate plants to cope with environmental stress situations, it is worth noting the ascorbate-glutathione cycle, a complex metabolic pathway in which a variety of photochemical, chemical and enzymatic steps are involved. (biomedcentral.com)
Plants have evolved different mechanisms to cope with natural fluctuations in light intensity to not only be able to harvest light optimally, but to also protect themselves from excess light [ 1 ]. (biomedcentral.com)
A conception stating that molecular oxygen is chemically rather passive and special activation mechanisms are needed to involve it into chemical and biological processes appeared in the scientific literature in the middle of XIX century. (msu.ru)
The peroxidation theory formulated independently by A. N. Bach and C. Engler in 1897 was an important step in understanding mechanisms of oxygen activation [ 2 - 4 ]. (msu.ru)

논문] 안병민, Han-Joo Lee, In-Chul Choi, Terence G. Langdon, Jae-Il Jang, Megumi Kawasaki, Micro-mechanical behavior of an exceptionally strong metal matrix nanocomposite processed by high-pressure torsion? (ajou.ac.kr)

Detection of organic compounds such as formaldehyde and sugars was reported by many workers, usually by exposure of a solution of carbon dioxide to light, typically a mercury lamp or sunlight itself. (wikipedia.org)
A nucleophilic organic catalyst generates radicals upon SN2-based activation of commercially available alkyl halides and blue light irradiation. (iciq.org)
Binding and activation of dinitrogen formed the topic in the presentations of Andrew Ashley (Imperial College London), Liang Deng (Shanghai Institute of Organic Chemistry), and Leslie Murray (University of Florida). (fusion-conferences.com)
Most emitted air pollution can lead to the formation of secondary pollutants (e.g., tropospheric ozone, peroxyacetyl nitrate), secondary organic aerosols, and photochemical smog [ 6 , 7 ], which is the major cause of a sharp decrease in air quality in numerous regions around the world [ 8 - 10 ]. (nso-journal.org)

In optogenetics, as in nature, sensory photoreceptors serve to control cellular processes by light. (optobase.org)
Tissue chromophores are components of cellular and sub-cellular organelles which absorb light. (drjwv.com)
A substantial number of proteins that are involved in the heat-acclimatization process such as the proteins related to cellular redox status and heat shock, are already altered in the type-A arr mutants without a prior exposure to stress conditions. (frontiersin.org)

This study assessed the temperature variation in the pulp chamber in human teeth, using three different bleaching gels with or without LED light activation. (bvsalud.org)
LED light activation of bleaching gels increased the temperature in the pulp chamber, but did not achieve the critical temperature value of 5.5ºC. (bvsalud.org)
The laser light creates electrical, temperature and pressure gradients in the tissue. (drjwv.com)

Activation of oxygen might occur due to intermediate formation of peroxides, which always appear during slow oxidation processes, no matter what is the nature of the oxidizing compound. (msu.ru)

Here are the advantages of photo etching compared to other manufacturing processes: Photo etching tooling is digital, unlike costly conventional methods such as stamping. (nationalvendingblog.com)
Nanoplastics in aqueous phase can be exposed to users through water supply networks and cannot be efficiently removed by conventional water treatment processes. (mdpi.com)

Each vial is irradiated by a set of independent wavelength customisable LEDs, meaning the intensity of the light can be modified for each experiment. (bist.eu)
The second step involves the activation of the photosensitizer in the presence of oxygen with a specific wavelength of light directed toward the target tissue. (medscape.com)
Light at a wavelength corresponding to a peak of the porphyrin excitation spectrum in tissues is used to most efficiently generate a therapeutic effect. (medscape.com)

We have grown silver prisms and pentagonal bipyramids, induced by plasmon excitation on a colloidal solution under the irradiation of light emitting diodes of different colors. (uchile.cl)

Given these advantages, pREDusk and pREDawn enable red-light-regulated expression for diverse use cases in bacteria. (optobase.org)

This new addition to the Asynt f Reactor Flow Chemistry platform has been launched with two high power LED wavelengths options (450nm / Blue and 365nm / UV) to suit most photochemical activation requirements. (asynt.com)
We are going to create a committee of chemistry students that will learn the risk management process and develop new, safe solutions and demonstrations. (lsu.edu)

Our high quality photon solutions of wavelengths from ultraviolet to infrared provide higher economic efficiency, improved process reliability and more innovation in your industrial, scientific and medical applications. (learnew-led.com)
Prompted by light cues in the near-ultraviolet to near-infrared region of the electromagnetic spectrum, gene expression can be up- or downregulated stringently, reversibly, non-invasively, and with precision in space and time. (optobase.org)
UVBI is a method of influencing the blood with quanta of light from the ultraviolet part of the spectrum. (kalinka-store.com)
Cellulose acetate is photo chemically degraded by UV wavelengths shorter than 280 nm, but has limited photo degradability in sunlight due to the lack of chromophores for absorbing ultraviolet light. (springer.com)

Although inaccessible by thermal activation, transitions to electronically excited and anionic states of CO 2 can bend the molecule as a first step to O 2 production. (nature.com)

We tested new NDVI and PRI sensors, "spectral reflectance sensors (SRS CE1)" recently developed by Decagon Devices, during spring activation of photosynthetic activity in evergreen and deciduous stands. (manchester.ac.uk)
IAPN is conducting research on how photosynthetic processes are affected by the nutrient supply status: the spinach leaf shown here has visible symptoms of magnesium deficiency. (iapn.de)
The plant nutrient magnesium (Mg) plays crucial roles in photosynthetic processes. (iapn.de)
The research aims at understanding how the photosynthetic processes are affected at a range of Mg concentrations and corresponding how photoprotection is affected by Mg supply. (iapn.de)

In this process, numerous complex processes take place in the chloroplast, including the xanthophyll cycle, which involves the conversion of violaxanthin to zeaxanthin by the enzyme violaxanthin de-epoxidase (VDE) and the protonation of the photosystem II protein subunit PsbS. (iapn.de)

Shedding light on current trends in molecular optogenetics. (optobase.org)
The photochemical reactivity and photophysics of these species are found to be a function of molecular geometry. (princeton.edu)
In a study published in JBC, a team from I2BC/CEA-Joliot, in collaboration with the Beijing Botanical Institute (China), describes for the first time an intermediate state of the light-harvesting antenna of higher plants that provides a better understanding of the changes that take place at the molecular level during the activation of a plant's photoprotection mechanism. (cea.fr)
Immunolabeling and autoradiography have traditionally been applied as the methods-of-choice to visualize and collect molecular information about physiological and pathological processes. (nature.com)
Deciphering the molecular organization of signaling processes and their disorganization in disease remain among the greatest challenges in biomedical science. (nature.com)
O 2 activation at molecular first row transition metal compounds was reported by Christine McKenzie (University of Southern Denmark), while Grit Daniela Straganz (Technische Universität Graz) dealt with natural paragons, namely iron enzymes. (fusion-conferences.com)
Then, the discovery of photodynamic action is described, which was shown to result from pigment photosensitized activation of molecular oxygen. (msu.ru)

Because the photosensitizer is preferentially absorbed by hyperproliferative tissue and the light source is directly targeted on the lesional tissue, photodynamic therapy achieves dual selectivity, minimizing damage to adjacent healthy structures. (medscape.com)
Because P acnes has been shown to naturally accumulate porphyrins, blue or red light alone can also have a direct therapeutic photodynamic effect on the bacteria. (medscape.com)

When a photoexcited state is deactivated by a chemical reagent, the process is called "quenching. (newworldencyclopedia.org)
In the few steps of the process, there are very few equipments used like the chemical reagent, maskants, and etchants. (nationalvendingblog.com)

This makes industrial processes even more efficient and reliable. (learnew-led.com)
Finally, Victor Adamian (BP Petrochemicals) talked about the mechanism of one of the most important homogeneously catalysed industrial processes utilizing O 2 as the oxidant. (fusion-conferences.com)

4. Stimulates the processes of the nervous system, has a calming, sedative effect. (kalinka-store.com)

First, light-dependent expression underpins novel concepts and strategies for enhanced yields in microbial production processes. (optobase.org)

After a period of leisure time in a beautiful environment the scientific part of the day continued by lectures about N 2 activation and reactive nitrogen species. (fusion-conferences.com)

Plastid-specific ribosomal proteins (PSRPs) have been proposed to play roles in the light-dependent regulation of chloroplast translation. (cipsm.de)

Promotes the activation of blood elements against all types of pathological infections. (kalinka-store.com)

The elimination of mechanical tooling and its long lead time, the absence of surface burrs and deburring requirements, plus the speed with intricate designs makes photo chemical etching a fast manufacturing process for prototypes or large production. (nationalvendingblog.com)

Porphyrins derived from ALA are mainly localized in the vicinity of mitochondria, which can lead to apoptosis or necrosis of malignant cells upon light exposure. (medscape.com)

Stefan Roggan (Bayer Technology Services) presented results concerning the activation of chlorine for the synthesis of phosgene. (fusion-conferences.com)

Second, light-responsive bacteria can be optogenetically stimulated while residing within the bodies of animals, thus prompting the secretion of compounds that grant health benefits to the animal host. (optobase.org)

The reactivity of these complexes as a function of Group 8 metal and solvent system is nicely predicted using the charge transfer theories of Marcus and Hush, with the source of the differential reactivity being the shift in the relative activation barriers for the conversion of a one-electron [Fe III , Pt III , Fe II ] intermediate to the observed two-electron products or to the starting material. (princeton.edu)

The second Fusion conference on Small Molecule Activation took place in Cancun Mexico, from 20th - 23rd May 2016. (fusion-conferences.com)

While transcription initiation and elongation remain most important for optogenetic intervention, other processes e.g., translation and downstream events, were also rendered light-dependent. (optobase.org)
Light/dark cycles are probably the most important environmental signals that regulate plant development. (biomedcentral.com)

Heraeus develops solutions of UV and Infrared light which can be exactly adjusted to materials and products and integrated into your process. (learnew-led.com)
The improved scheme of data recording process on an optical disc based on a substrate made of high-stable materials has been proposed. (spie.org)
In addition, the replacement, cleaning, and disposal of adsorbent materials are costly processes and may cause secondary pollution. (nso-journal.org)

Activation of patient defenses - increased macrophage activity and stimulation of white blood cells. (drjwv.com)

Additionally, LLLT, at 750 and 1000 J/cm 2 , reduces the lesion volume and modulates the inflammatory process with decrease of CD-68 protein expression. (rj-laser.com)
These results suggest that LLLT at higher doses was effective in promoting functional recovery and modulating inflammatory process in the spinal cord of rats after SCI. (rj-laser.com)
Low-intensity laser therapy (LILT) has been applied in neuroscience due to its anti-inflammatory effects on biological tissue in the repairing process. (rj-laser.com)

Anatomy3

Organisms1

Chemicals and Drugs12

Analytical, Diagnostic and Therapeutic Techniques and Equipment3

Phenomena and Processes10

Disciplines and Occupations2

Technology, Industry, Agriculture2

Information Science4

Health Care2

Reactions23

Primary photochemical1

Photosynthesis6

Fluorescence3

Photochemistry8

Reactors2

Photophysical1

Photons2

Reaction13

Molecules1

Hydrogen3

Interactions2

Functionalization1

Singlet oxygen2

Reactant1

Photosensitizers1

Reactive oxygen3

Absorption3

Intermediates1

Degradation3

Energy12

Mechanisms6

Torsion1

Organic4

Cellular3

Temperature3

Occur1

Conventional2

Wavelength3

Irradiation1

Advantages1

Chemistry2

Ultraviolet4

Inaccessible1

Photosynthetic4

Xanthophyll cycle1

Molecular7

Photodynamic2

Chemical reagent2

Industrial processes2

Stimulates1

Microbial1

Species1

Chloroplast1

Pathological1

Production1

Exposure1

Synthesis1

Compounds1

Intermediate1

20161

Important2

Materials3

Stimulation1

Inflammatory3