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Catalysis

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.

Catalytically Perfect Enzymes

Catalytically Perfect Enzymes

The theory of catalytically perfect enzymes was first proposed by W.J. Albery and J. R. Knowles in 1976. These enzymes catalyze biochemical reactions at high-speed. Their catalytic efficiency values range from 108-109 M-1s-1. These enzymes are also called 'diffusion-controlled' as the only rate-limiting step in the catalysis is that of the substrate diffusion into the active site. Examples include triose phosphate isomerase, fumarase, and superoxide dismutase.

Catalysis

Catalysis

Catalysis influences the rate of chemical reactions by providing an alternative reaction pathway with lower activation energy. A catalyst speeds up a reaction, but it is not consumed during the process. The fundamental principle of catalysis is the ability of a catalyst to alter the reaction mechanism, often introducing a more efficient pathway than the uncatalyzed process.In a catalyzed reaction, the catalyst participates directly in the reaction mechanism. It interacts with reactants to form...

Heterogeneous Catalysis

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...

Cognitive Learning

Cognitive Learning

Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...

Creative Thinking

Creative Thinking

Creative thinking encompasses innovative and unconventional methods for addressing challenges, often leading to groundbreaking solutions. Instead of focusing solely on enhancing existing systems, such as increasing smartphone battery capacity, creative thinking might inspire advancements like energy-efficient batteries or processors that minimize power consumption. This multidimensional approach underscores the importance of exploring novel pathways to innovation.
Divergent thinking is the...

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Related Experiment Video

Updated: Jul 20, 2026

Light-driven Enzymatic Decarboxylation

Light-driven Enzymatic Decarboxylation

Published on: May 22, 2016

Catalytic creativity. The case of Linus Pauling.

J Nakamura¹, M Csikszentmihalyi

¹University of Chicago, USA. jeanne.nakamura@cgu.edu

The American Psychologist

|May 2, 2001

Summary

Scientific creativity arises from social interactions, not just individual genius. A chemist

Area of Science:

The study is situated within the field of scientific creativity and innovation, with a focus on the sociology of science.

Background:

Creativity is often attributed to individual brilliance, but this perspective overlooks external influences.
The career of chemist Linus Pauling serves as a case study to explore these external factors.

Discussion:

A systems perspective suggests that scientific innovations are creative only when accepted by expert communities, transforming the scientific culture.
The social field acts as a catalyst, fostering interactions and shaping an individual's scientific journey.
Linus Pauling's career exemplifies how social factors influence judgment, opportunities, incentives, and critical evaluation in science.

Key Insights:

Scientific creativity is a product of both individual aptitude and the surrounding social environment.

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The acceptance of an innovation by a community of experts is a key determinant of its creativity.

Social networks and expert communities play a vital role in nurturing and validating scientific advancements.

Outlook:

Future research should continue to explore the interplay between individual contributions and social dynamics in scientific breakthroughs.
Understanding these social influences can help foster more productive and innovative scientific environments.
This work challenges the myth of the lone genius, advocating for a more holistic view of scientific achievement.